Skip to main content
PLOS ONE logoLink to PLOS ONE
. 2021 May 19;16(5):e0245031. doi: 10.1371/journal.pone.0245031

The Biobanque québécoise de la COVID-19 (BQC19)—A cohort to prospectively study the clinical and biological determinants of COVID-19 clinical trajectories

Karine Tremblay 1,2,*,#, Simon Rousseau 3,4,*,#, Ma’n H Zawati 5,*,#, Daniel Auld 6, Michaël Chassé 7,8, Daniel Coderre 9, Emilia Liana Falcone 7,10, Nicolas Gauthier 11, Nathalie Grandvaux 12,13, François Gros-Louis 14,15, Carole Jabet 16, Yann Joly 5, Daniel E Kaufmann 7,13, Catherine Laprise 1,17, Catherine Larochelle 13,18, François Maltais 19, Anne-Marie Mes-Masson 13,20, Alexandre Montpetit 9, Alain Piché 21,22, J Brent Richards 23,24, Sze Man Tse 25, Alexis F Turgeon 26,27, Gustavo Turecki 28,29, Donald C Vinh 30,31, Han Ting Wang 32,33, Vincent Mooser 34; on behalf of BQC19
Editor: John S Lambert35
PMCID: PMC8133500  PMID: 34010280

Abstract

SARS-CoV-2 infection causing the novel coronavirus disease 2019 (COVID–19) has been responsible for more than 2.8 million deaths and nearly 125 million infections worldwide as of March 2021. In March 2020, the World Health Organization determined that the COVID–19 outbreak is a global pandemic. The urgency and magnitude of this pandemic demanded immediate action and coordination between local, regional, national, and international actors. In that mission, researchers require access to high-quality biological materials and data from SARS-CoV-2 infected and uninfected patients, covering the spectrum of disease manifestations. The “Biobanque québécoise de la COVID-19” (BQC19) is a pan–provincial initiative undertaken in Québec, Canada to enable the collection, storage and sharing of samples and data related to the COVID-19 crisis. As a disease-oriented biobank based on high-quality biosamples and clinical data of hospitalized and non-hospitalized SARS-CoV-2 PCR positive and negative individuals. The BQC19 follows a legal and ethical management framework approved by local health authorities. The biosamples include plasma, serum, peripheral blood mononuclear cells and DNA and RNA isolated from whole blood. In addition to the clinical variables, BQC19 will provide in-depth analytical data derived from the biosamples including whole genome and transcriptome sequencing, proteome and metabolome analyses, multiplex measurements of key circulating markers as well as anti-SARS-CoV-2 antibody responses. BQC19 will provide the scientific and medical communities access to data and samples to better understand, manage and ultimately limit, the impact of COVID-19. In this paper we present BQC19, describe the process according to which it is governed and organized, and address opportunities for future research collaborations. BQC19 aims to be a part of a global communal effort addressing the challenges of COVID–19.

Introduction

The coronavirus disease 2019 (COVID-19) is a novel human disease caused by the coronavirus SARS-CoV-2. It was classified as a pandemic by the World Health Organization (WHO) on March 11, 2020. The COVID-19 outbreak is evolving daily, with the total number of deaths now reaching 2,748,737 and confirmed cases surpassing 125,160,255 (WHO, March 26, 2021). Research is essential to better understand the determinants of SARS-CoV-2 infection, the diverse clinical trajectories of infected patients and the determinants of COVID-19 clinical evolution. This work will help clinicians identify individuals at increased risk for complications and poor outcomes in order to adopt appropriate measures to protect them, to help the government take public health measures to control the spread of the infection, and to anticipate and better prepare for future pandemics. Access to high-quality biological materials and data from SARS-CoV-2 infected and uninfected participants is essential for achieving this mission. As part of the solutions to the COVID-19 pandemic, massive investments in coronavirus research have been launched worldwide and biobanks containing biosamples and medical data of individuals having suffered from SARS-CoV-2 infection have become key resources to pursue such research efforts.

In this manuscript, we present the “Biobanque Québécoise de la COVID-19” (BQC19, www.bqc19.ca), a Québec-based biobank infrastructure whose primary objective is to collect and house biosamples and data to support research on COVID-19.

Infratructure, study design & methods

Presentation of the BQC19

On March 26, 2020, the Fonds de recherche du Québec—Santé (FRQS) and Génome Québec announced the launch of a COVID-19 Québec Biobank program, named BQC19. BQC19 is a province-wide initiative to enable the collection, storage and sharing of biosamples and data related to the COVID-19 crisis The Public Health Agency of Canada (PHAC) provided significant additional funds to further support the goals of BQC19.

Mission

The mission of the BQC19 is to work in concert with the Quebec network of health institutions of the “Réseau de la santé et des services sociaux du Québec” (RSSS) and academic partners (Research centres and universities) to manage the unique COVID-19 related biological material and data banked at BQC19. The notion of sharing research results is at the heart of the BQC19’s mission, and as such, BQC19 has signed the Wellcome Statement on data sharing in public health emergencies, an open-science policy (https://wellcome.org/coronavirus-covid-19/open-data). The BQC19’s broad goal is to understand the pathophysiology of COVID-19 and support efforts to discover and develop new biomarkers of disease susceptibility and progression, new or reoriented therapies and vaccines to combat COVID-19. The BQC19 is also directed at enhancing research efforts related to the prevention, treatment, and epidemiological and population management of COVID-19. The BQC19 will stimulate health research and precision medicine initiatives on COVID-19.

A Quebec hospitals’ network

BQC19 is a multicentric biobanking infrastructure composed of a network of 11 hospitals in Québec and their five partnering academic institutions. All currently participating institutions are presented in Table 1. The BCQ19 governance is summarized in Fig 1 and the composition of each committee is also available on the BQC19 website. BQC19 began its operations on April 1, 2020 and the milestones achieved to date are presented in Fig 2. The BQC19 project was approved by the Centre hospitalier universitaire de l’Université de Montréal Institutional ethics review board (IRB) [#MP-02-2020-8929, 19.389].

Table 1. The BQC19 enrolling institutions.
Institutions Investigators
Centre hospitalier de l’Université de Montréal (CHUM) Daniel Kaufmann
Michaël Chassé
Madeleine Durand
Alexandre Prat
Quebec Heart and Lung Institute François Maltais
CIUSSS du Saguenay-Lac-Saint-Jean Catherine Laprise
Karine Tremblay
Luigi Bouchard
Centre hospitalier universitaire de Québec (CHUQ)—Université Laval Alexis Turgeon
Vincent Raymond
Centre hospitalier universitaire Sainte-Justine (CHUSJ) Sze Man Tse
Hugo Soudeyns
Philippe Jouvet
Jean-Sébastien Joyal
CIUSSS du Centre-Ouest-de-l’Ile-de-Montréal -Jewish General Hospital Brent Richards
Jonathan Afilalo
McGill University Health Centre (MUHC) Bruce Mazer
Donald Vinh
CIUSSS de l’Ouest-de-l’Ile-de-Montréal—Douglas Mental Health University Institute Gustavo Turecki
Nadir Hadid
Volodymyr Yerko
CIUSSS de l’Estrie—Centre hospitalier universitaire de Sherbrooke Alain Piché
CIUSSS du Nord-de-l’Ile-de-Montréal—Hôpital du Sacré-Cœur-de-Montréal Nicolas Gauthier
Yiorgos Alexandros Cavayas
Christine Arseneault
CIUSSS de l’Est-de-l’Ile-de-Montréal—Hôpital Maisonneuve-Rosemont Han Ting Wang
Jan Alexis Tremblay
Fig 1. BQC19 organizational chart.

Fig 1

BQC19 is a biobank with its own management and governance structure. The governance includes a Governing Committee, a Steering Committee, an independent Data and Sample Access Committee, and an international Scientific Advisory Board (Antoine Flahault, MD, Ph.D., Director, Institut de santé globale, Université de Genève, Switzerland (President); Andrew D. Badley, MD, Principal Investigator, Mayo COVID19 Biobank, Rochester, Minnesota, USA; Mark Daly, Ph.D., Co-director, Program in Medical and Population Genetics, Broad Institute, Cambridge, Massachusetts, USA; Daniel Douek, MD, Ph.D., Chief of the Human Immunology Section, NIAID, NIH, Bethesda, Maryland, USA; Mette Hartlev, LLM, Ph.D., LLD, Professor, Centre for Legal Studies in Welfare and Market, Denmark; Gary Kobinger, Ph.D., Canada Research Chair in immunotherapy and innovative vaccine platforms, Centre de recherche du CHU de Québec, Université Laval, Quebec, Canada; Rosanna Peeling, Ph.D., London School of Hygiene and Tropical Medicine, London, UK, Professor/Chair of Diagnostics Research, Director of the International Diagnostic Centre (IDC)). It also includes several sub-committees responsible for mandates ranging from scientific priorities to communication and ethical, legal and social issues. The governance of BQC19 is framed in its Management Framework. Terms of References for accessing samples and data collected within the framework of BQC19 are being completed.

Fig 2. BQC19 milestones.

Fig 2

The key BQC19 milestones achieved since the start of its mandate received on March 19th, 2020 leading to the release of the first set of data (July 17, The key BQC19 milestones achieved since the start of its mandate received on March 19th, 2020 leading to the release of the first set of data (July 17, 2020).

The BQC19 study design

The BQC19 has been designed as a cohort that includes SARS-CoV-2 PCR negative controls to prospectively study the clinical and biological determinants of COVID-19 clinical trajectories. The BCQ19 conceptual and longitudinal design is illustrated in Fig 3 and the major components are described in the next subsections.

Fig 3. BQC19 study design.

Fig 3

Schematic representation of the BQC19 study design. For hospitalized patients (hospitalized cohort) samples are collected during hospitalization at the days indicated (darker blue) and following hospitalization at the months indicated (paler blue). For asymptomatic, mild and moderate disease out-patients (non-hospitalized cohort), samples are collected at the indicated time points (pale blue). Samples to be collected by all participants (pale blue) and COVID-19 + only (black).

Recruitment

BQC19 includes confirmed COVID-19 (SARS-CoV-2-positive (+)) adults and children who are recruited during a hospital stay (hospitalized cohort). It also includes asymptomatic, mild and moderate ambulatory cases who are recruited one-month post-infection (non-hospitalized cohort). The grading score for severity is based on the WHO Working Group on the Clinical Characterisation and Management of COVID-19 infection [1]. For both groups, SARS-CoV-2 PCR-negative (-) patients are recruited as controls. Thus, in order to be enrolled in the BQC19, the patients must:

  1. have undergone a COVID-19 diagnostic test and, for the hospitalized cohort have been admitted to a participating hospital;

  2. be willing to participate in optional long-term follow-up;

  3. have the capacity to provide informed consent (if the participant is an adult); or have a surrogate decision maker from whom consent can be obtained (in case of incapacity); or have a parental or legal guardian able to provide consent (if the participant is younger than 18 years).

Consent considerations

Informed consent is obtained directly from the adult participant capable of consenting, from a legally authorized representative if the adult is incapable of giving consent or from a parent or legal guardian if aged less than 18 years old. Additionally, assent is obtained from a participating child when appropriate.

Given the high risk of infection for clinical and research staff related to COVID-19, consent is carried out using procedures derived from practices in acute and critical care units and taking into account the particular situation arising from the pandemic.

Consent procedures

Each BQC19 enrolling site has established a consent process that reflects the BQC19’s standard operating procedures (SOPs, available on www.bqc19.ca). These SOPs address the following specific points: 1) when and where the patient is approached; 2) the procedure to follow when the patient is diagnosed as a SARS-CoV-2 positive or negative PCR result; 3) the timing and nature of sampling (including data) depending on whether the patient is diagnosed as SARS-CoV-2 positive or negative and whether the patient is hospitalized, and; 4) the time period over which recruitment is to be conducted. The SOPs developed for BQC19 provide details on each of these points targeted to each facility. To ensure consistency across BQC19 and to ensure that procedures are harmonized, consent processes established by the BQC19 participating establishments must follow two fundamental principles: 1) respect of the autonomy of the participants (taking into account their state of health) according to provincial legal and research ethics standards and 2) ensure the safety of all stakeholders involved at all times. Additional information can be found in (Appendix 1- Consent in S1 File).

The BQC19 sample collection

BQC19 collected samples and availability

For adults who have consented to participate in BQC19 and are hospitalized, 48 ml peripheral venous blood samples are drawn at up to five different timepoints during the participant’s clinically indicated blood work. Blood samples are collected when possible: on the day of recruitment (T0); on Day 2 (Q2); on Day 7 (Q7); on Day 14 (T14); and on Day 30 (T30) or at the first available time if the window was missed. For participants who were discharged from hospital, an additional 60 mL of blood is drawn at each of the follow-up visits scheduled approximately at months 1, 3, 6, 12, 18 and 24 following hospital discharge (outpatient or home). For those participating to follow-up, blood is not necessarily collected as part of standard care and a maximum of 200 ml of blood per month can be collected. For adults who have consented to participate in BQC19 but have not been hospitalized, a 60 mL of blood is drawn at each of the scheduled follow-up visits approximately in months 1, 3, 6, 12, 18 and 24. For these participants, blood is also not necessarily collected as part of standard care and a maximum of 200 ml of blood per month can be collected. For both cohorts, follow-up visits are optional and participants may opt to agree only provide clinical information if they do not wish to donate blood samples. For children, the adult protocol is followed but the total volume is determined according to the weight of the child. If the parent refuses a blood draw for research, their permission is obtained to recuperate leftover samples from the clinical laboratory. Depending on the possibilities for blood samples to be processed, the BQC19 sample collection includes: 1 PAXgene® RNA tube, 4 Acid Citrate Dextrose (ACD) tubes and 1 red-capped tube (serum) from each participant at each visit where blood sample are drawn. These samples allow DNA/RNA, plasma, serum and peripheral blood mononuclear cells (PBMCs) isolation. All tubes are kept at room temperature before processing; samples are processed rapidly after phlebotomy, ideally < 6 hours; <12 hours is fine for most assays; >12h: a number of functional assays will become less reliable. The retrieval time between venipucture and sample handling is documented. The complete sample processing is available in the Appendix 2 in S1 File. The BQC19 stored biosamples inventory is presented in Table 2.

Table 2. BQC19 available biosamples.
Type of samples Total a
DNA isolates b 2,726
RNA isolates b 3,794
Plasma 3,930
Serum 1,244
PBMCs 3,198
Total 14,892

PBMCs = Peripheral blood mononuclear cells.

aAs of March 19, 2021.

b Include all expected samples collected from whole blood (DNA) or PAXgene® (RNA) tubes.

Biosamples pre-analytical quality control

In order to ensure consistency in the preparation of biosamples collected for BQC19, all participating sites use the same SOPs (available at BQC19.ca), clearly detailing the exact protocol to be followed, including the type of primary container to be used (Table 3). In terms of pre-analytical quality assessment, we document the following information for each sample collected: date of collection, location of sample, associated barcode(s), SOPs used, time elapsed to biobank, precisions/explanations on delays, name of sample’s handler. Our protocol details that samples should ideally be processed in less than 6h from collection, the actual time (pre-centrifugation time) is recorded for each sample in the biobank management software. In addition, for PBMCs we document cell concentration, number of cells in sample (total cells count), freezing medium; for nucleic acids isolations, we document extraction date, extracted from [biological specimen], extraction method, diluent, absorbance measurements at 260nm, 280nm and 320nm, 260/280 ratio, dilution factor, concentration, total amount.

Table 3. BQC19 biosample pre-analytical quality information.

Type of sample Type of primary container Pre-centrifugation delays a Centrifugation Long-term storage
Whole blood ACD, SED, SHP <1h
<2h
<3h
between 1-6h
>6h
unknow
and specified delay
-80°C (2ml tubes, barcoded)
RNA PAX overnight RT, 24h at -20°C, -80°C long term
Plasma ACD 850 X g, 10 min RT, no Brake -80°C (1.5ml cryotube)
Serum CAT ou SST 2000 X g, 10 min RT, Brake -80°C (1.5ml cryotube)
PBMCs ACD 300 X g, 4°C, no Brake Liquid nitrogen (sterile cryotubes)

ACD = Acid citrate dextrose tube; CAT = Serum tube without clot activator; PAX = PAXgene® tube; PBMCs = Peripheral blood mononuclear cells; RT = Room temperature; SED = Sodium EDTA tube; SHP = Sodium heparin tube; SST = Serum separating tube with clot activator.

a Indicated values are captured for each biosamples in biobank management software.

Access to BQC19 samples and data

Usage of BQC19 biosamples and data is only possible if aligned with a participant’s consent. This is made possible by ensuring that the access process as well as the terms and conditions of any future use of data and samples respect the general permissions consented to by participants. Access must respect the rights, interests and expectations of the BQC19 participants and must support the research to which they initially consented, consistent with the mission of the BQC19. Access to data, a renewable resource, is planned in a manner that allows rapid data use by applicants to meet urgent research needs associated with COVID-19. An expedited assessment process is in place for requests to access data alone. Access to biological samples, a limited resource, requires additional steps.

Open and controlled access

Data with a very low risk of re-identification and no particular sensitivity (“open access data”), such as aggregated patient data from the different cohorts will be made publicly available on the BQC19 website. For the stored biological materials, they will be accessed through a controlled system. Data that has a direct or high risk of re-identification will also go through a tightly controlled access process. Access to the BQC19 resources complies with the processing principles described below.

Principles guiding access to BQC19 data and biosamples

Requests from investigators who wish to access BQC19 samples and data are reviewed by the independent Biobank Access Committee. The eligibility criteria to apply for access are summarized in Fig 4 and the procedure in Fig 5. The details can be found in (Appendix 3- Access in S1 File). A registry of all projects that have benefited from biomaterial and data of BQC19 is maintained and will be made available to the research community and the general public on the BQC19 website.

Fig 4. Eligibility and evaluation criteria for BQC19 access.

Fig 4

The figure lists the general eligibility and evaluation criteria to obtain access to BQC19 biological material and data.

Fig 5. Flow chart of BQC19 access process.

Fig 5

The chart illustrates the steps required to gain access to BQC19 data only (A) or biological material and data (B).

Results & discussion

Participant’s profiles (April to March 2021)

Enrollment statistics

For the hospitalized cohort, we report a 75.4% acceptance rate (2,1271 out of 2,878 invited to participate excluding patients who were discharged or scheduled to be discharged, deceased, incapacited, or admitted to care units without planned blood sampling; total form eight sites). In the non-hospitalized cohort, we report an acceptance rate of 80.2% (616 out of 768 invited to participate; total from five sites). The higher success rate in the non-hospitalized cohort may be explained by different enrolling strategies across sites (e.g. two of the sites used public advertising which includes a voluntarism bias). In term of dropout rates, we report 3.4% in the hospitalized cohort (73 dropouts out of 2171 enrolled participants) and a 0.5% rate in the non-hospitalized cohort (3 dropouts out of 616 enrolled participants). Finally, for both cohorts, reported reasons for refusal or study dropout include: “no interest”, “no benefit”, “don’t believe in research purposes”, “no time for follow-up”, “surrogate refusal”, “health related reasons/age”, “SARS-CoV-2 negative patient who though their participation wasn’t important”, “fear about the future uses of their data (or their children’s data)”, “parents’ fear of harming their children”, “unwillingness to move or to give more blood for follow-up visits”, “communication/understanding issues”, “difficulty in taking blood samples”, and “overburdened by hospitalization and their clinical follow-up/worried enough”.

BQC19 participants’ characteristics and available data

As of March 19, 2021, 2,787 participants have consented to participate to the BQC19. However, quality controlled data is currently available for a total of 2,300 enrolled participants (2,256 adults and 44 children recruited between April 2020 and March 2021). A total of 1,635 confirmed SARS-CoV-2 PCR positive cases (789 males and 846 females) aged between 0 and 104 years (adults mean of age of 59.2± standard deviation of 19.6 years; children mean age of 7.3±7.0 years) and 644 SARS-CoV-2 PCR negative controls (335 males and 330 females) aged between 0 and 102 years (adults mean age of 62.5±20.1 years; children mean age of 6.4±6.7 years) were included. Among all subjects, 1,716 (1,110 SARS-CoV-2 PCR positive cases and 596 negative controls) are part of hospitalized cohort while 584 (515 SARS-CoV-2 PCR positive cases and 69 negative controls) are part of non-hospitalized cohort; their distribution according to follow-up visits is presented for both cohorts in Fig 6. For the hospitalized cohort, where participants have been enrolled at the time of hospital admission (Day 0), the full sample sets currently available at each timepoint are shown in Fig 6A. For the non-hospitalized cohort, the full sample sets are available for all participants at Day 180 post-infection (Fig 6B). However, in this cohort, some participants may have been enrolled at Day 30 or Day 90 post-infection.

Fig 6. Longitudinal distribution of BQC19 participants.

Fig 6

The number of participants to the hospitalized cohort (A) and to the non-hospitalized cohort (B) at each time point of sampling is given above each bar. Of note, for the hospitalized cohort, follow-up visits are calculated after patient hospital discharge and for the non-hospitalized cohort, follow-up visits are calculated after patients diagnosis (PCR confirmed). Black bars represent SARS-CoV-2 PCR positive cases while grey bars represent SARS-CoV-2 PCR negative controls. Data as of March 19, 2021.

The relevant demographic, clinical and pharmacological variables for each participant are collected following a chart review documented in a case report form (CRF) (available at www.bqc19.ca). The participants currently included in BQC19’s database are distributed in four Québec Health Regions: 1808 (78.6%) from Montréal (five enrolling sites); 291 (12.7%) from Estrie (one enrolling site); 144 (6.3%) from the Saguenay-Lac-Saint-Jean (one enrolling site); and 57 (2.5%) from the Capitale-Nationale (two enrolling sites). This is not an accurate reflection of the demographic representation of the province’s population, which was not the goal of this biobank, but rather to recruit participants as quickly as possible, to support research during the sanitary emergency.

The consent to BQC19 participation allows access to participants’ medical chart as well as information contained in the Quebec public health administrative databases (e.g. the “Institut de la Statistique du Québec (ISQ)” or the “Laboratoire de santé publique du Québec”).

BQC19 key features

In this section, we outline a few key features of BQC19 that may be useful to the research community in taking advantage of its resources.

An evolutive biobank management framework

The management framework is at the core of any biobank initiative. It defines key structural and procedural elements associated with resources. These complex documents need significant forethought and usually require a considerable time investment, an element that was not available to the BQC19 since the goal was to begin recruitment at the dawn of the first wave of COVID-19 hospitalizations in the spring of 2020. Given the urgency of the situation, this management framework was developed and approved in several distinct phases to both address the urgent need to start operation, while respecting the core values of ethics and transparency. The first phase focused on enabling recruitment, followed by governance and access. This process allowed BQC19 to be receptive to a shifting on-the-ground reality, both scientifically and ethically, and to enable the management framework to rapidly adapt to reflect these realities while at the same time remaining innovative, anticipatory and forward-looking. This iterative procedure was only possible through a tight and dynamic collaboration with IRBs of the hospitals participating in the BQC19. For more details, the BQC19 management framework is available on BQC19 website.

Standardization across sites

A key requirement of a multicentric project is the uniformization of processes across all recruiting sites using the same SOPs. This allows studies to be performed on a greater number of samples and to compare disease profiles across regions. This is particularly important to limit pre-analytical issues for “omics” analyses.

PBMCs collected longitudinally

Isolating PBMCs from blood is a resource intensive procedure. However, there is great value added by having access to frozen PBMCs to study the activity of the immune system during COVID-19. We have favored the collection of PBMCs in hospitalized and ambulatory patients, including longitudinal sampling at multiple days following recruitment. While not all sites were able to do this collection, we nevertheless have multiple longitudinal cryopreserved PBMCs samples, a distinctive valuable resource that will help to better understand the role of circulating immune cells in SARS-CoV-2 infection and the development of COVID-19. In addition, PBMCs could also be reprogrammed into induced pluripotent stem cells (IPSC) to generate in vitro models, such as, organoids to better understand the disease pathophysiology.

Population profile

The majority of data and samples collected to date are from the Montreal region, which was one of the worst hit cities in Canada during the spring 2020 wave. Montreal is a cosmopolitan city, with a multicultural and multiethnic population. The BQC19 multicentric design allows, in addition, the collection of data and samples from participants of other regions of the Québec province. This wide coverage of Quebec’s population may take advantage of the inclusion of some population profiles that are much less diverse from a genetic point of view. For example, the BQC19 includes participants from the Saguenay-Lac-St-Jean region, well-recognized as a founder population [24] that has been demonstrably useful in genetic studies of Mendelian traits [5]. Moreover, while the current framework is targeted to the adult population, BQC19 is integrated with a multicentric pediatric biobank led by one of Montréal’s pediatric hospitals, the Centre Hospitalier Universitaire Sainte-Justine (CHUSJ). This means that within BQC19, access to pediatric data and biosamples is also available, and extension of the recruitment of maternal biosamples and data is planned.

Core analyses

In view of the limited availability of biosamples and to support the greatest accessibility to analytical/experimental data to the research community, the BQC19, with the support of its funding agencies, has established a plan for core analyses of a large subset of biosamples that include performing whole genome sequencing, genome-wide association studies, transcriptomics, proteomics, metabolomics, circulating inflammatory marker profiling and serology (titers of SARS-CoV-2 antibodies, including neutralization activities) using the same technologies for all samples. These analyses are summarized in Table 4. They will be directly integrated into BQC19 database and will be available to all authorized researchers to access.

Table 4. BQC19 planned core analyses.
Type of analysis Objective of the analysis
Genome-wide genotyping & Whole genome sequencing Identification of genetic variants in the host genome and genetic variations such as changes in the copy number of certain genes (genome-wide sequencing) as well as common genetic variations across the genome (genome-wide genotyping) associated with COVID-19. The results will allow studies on the susceptibility and risk of developing a severe form of the disease.
Viral genome sequencing This analysis will provide a better understanding of the propagation of the pandemic n and the different strains of virus identified. These data can also be correlated with disease severity and immune responses as well as with host genome sequencing.
Proteomic (1) The simultaneous measurement of approximately 5000 proteins using the SomaScan technology from SomaLogic in the collected samples shall provide data to predict the risk of disease progression. This technology was chosen because of the large number of proteins measured in a single sample.
Proteomic (2) Circulating markers This approach is complementary to SomaScan above and will allow the measurement of established markers of inflammation/disease activity using a very specific and sensitive technique. These data will allow a better understanding of the biology of patient responses to disease and help guide future treatment.
Core hospital laboratory analysis for outpatients (non-hospitalized cohort) These analyses will allow basic blood tests to be performed on non-hospitalized patients and will provide important data for research on participants in both cohorts. This includes baseline values for liver, heart and kidney damage, as well as standard inflammation parameters.
Metabolomic Establishing the plasma metabolome will complement the proteomic data and will enhance capacity to identify/predict individuals at risk of developing severe disease and favouring a deeper understanding of the molecular pathways regulating the various clinical trajectories.
Serology This analysis will allow for very detailed and quantitative measurement of specific antibodies against the SARS-CoV-2 virus in affected patients, well beyond standard serological tests, as well as the ability of these antibodies to neutralize the virus. This will help guide research on the immune response of patients to COVID-19, a key element in the management of the disease.
Transcriptomic Transcriptomic gene signatures have been associated with other viral diseases with cellular and immune responses, the pathogenesis of the disease and the trajectory of infection. Transcriptomic analyses performed on participants’ RNA extracted from whole blood will generate important data in this area for COVID-19.

Open science

As stated, the core of the BQC19 mission is the sharing of data with the entire research community in respect of its ethical and legal obligations. This includes the requirement that all users return analytical and experimental data obtained with BQC19 biosamples to the biobank for other researchers to access. This is a condition of BQC19 usage and is an investment in its future wealth as a sustainable resource. The BQC19 fully subscribes to the Statement of data sharing in public health emergencies (https://wellcome.org/coronavirus-covid-19/open-data).

Future directions

Recruitment

Following the first wave of the pandemic, additional financial support from the Public Health Agency of Canada was secured to support the expansion of its activities to non-hospitalized participants. This phase of recruitment has begun and aims to add asymptomatic or mild to moderate cases of COVID-19 to the BQC19 resources. Moreover, as of writing of this manuscript, infections are on the rise again in Quebec, and BQC19 pursues its recruitment for both out- and in-patients. The second wave is characterized by a much higher proportion of confirmed cases in individuals in the 20–49 age group (https://www.quebec.ca/en/health/health-issues/a-z/2019-coronavirus/situation-coronavirus-in-quebec/#c63039). Recruitment of this population will broaden the age spectrum within BQC19 and enable more comprehensive studies looking at COVID-19 throughout the life span. This is in addition to the current integration with the pediatric arm of BQC19.

Networking

Finally, a key to overcoming challenges posed by the current pandemic is open collaboration. In addition to its policy on open science and making all biobank documentation freely available via its website, BQC19 is actively pursuing partnership with other initiatives at national and international levels. This includes networking with other biobanking initiatives in Canada (Alberta, Ontario, New Brunswick and Nova Scotia) like CanCov (https://cancov.net) as well as with large population cohorts, such as CARTaGENE (www.cartagene.qc.ca) and the Canadian Longitudinal Study on Aging (CLSA, www.clsa-elcv.ca). These networking efforts are key in enhancing the scientific community’s research capacity. Moreover, via collaboration with nation-wide COVID-19 genomic initiatives in Canada, such as HostSeq (www.cgen.ca/project-overview) or VirusSeq (www.genomecanada.ca/en/cancogen/cancogen-virusseq), BQC19 aims to provide for as many participants as possible, the host and SARS-CoV-2 genomic data isolated by the “Laboratoire de Santé Publique du Québec” since the beginning of COVID-19 testing in Québec. This integration will create a comprehensive and rich data bank, enabling innovative studies on host-pathogen interactions at the genetic level.

Conclusion

BQC19 is a COVID-19 dedicated biobank which has been designed to prospectively capture data and samples from a large number of SARS-CoV-2 PCR positive and negative controls during the COVID-19 pandemic. We have already approved access to data or biological material to more than a dozen investigators in the first few months of operations. By providing access to the research community to clinical data as well as data derived from in-depth multi-omic analyses on the first 2000 samples, we are forecasting (and encouraging) an exponential increase in requests of this valuable and non-depletable resource. BQC19 is a critical infrastructure to study the molecular and clinical determinants of COVID-19 susceptibility, severity and outcomes.

Supporting information

S1 File

(DOCX)

S2 File

(DOCX)

Acknowledgments

Authors are grateful to all participants for their essential and valuable contribution. We would also like to acknowledge the financial support from the Fonds de recherche du Québec—Santé (FRQS), Genome Québec and the Public Health Agency of Canada (PHAC). In addition, we would like to thank Rémi Quirion (Québec chief scientist, FRQ), Serge Marchand (Génome Québec) and Pascal Michel (scientific adviser, PHAC). Special thanks to BQC19 staff, Pascale Léon (manager), Mylène Bertrand (coordinator) and Doris Ransy (access officer). Michael Lang, Academic Associate, Centre of Genomics and Policy, McGill University, for his editorial contribution.

The BQC19 group is led by Dr. Vincent Mooser (BQC19 director, vincent.mooser@mcgill.ca) is composed of numerous health professionals, researchers and other highly qualified personnel contributors listed below according to their primary affiliation. Each partner or institution are listed in alphabetical order as well as each contributor (by last name). Centre hospitalier universitaire de Québec: François Belleau, David Bellemare, Olivier Costerousse, Philippe Després, Ève Dubé, Martin Godbout, Samantha Jacques, Patrick Laplante, Vincent Raymond, Serge Rivest, Hugo Noël-Thiboutot. Centre hospitalier universitaire de l’Université de Montréal: Pascale Arlotto, Fatna Benettaib, Dounia Boumahni, Nathalie Brassard, Marie-Ève Cantin, Annie Chamberland, Madeleine Durand, Camille Craig, Andrés Finzi, Ali Ghamraoui, Nakome N Guissan, Juliana Lanza, Stéphanie Matte, Marc Messier-Peet, Livia Pinheiro-Carvalho, Alexandre Prat, Vincent Poitout, Maya Salame, Martine Sauvé. Centre hospitalier universitaire de l’Université de Sherbrooke: William Fraser, Annie Laventure, Christine Rioux-Perreault, Karine Tremblay. Centre hospitalier universitaire Sainte-Justine: Isabelle Boucoiran, Lucy Clayton, Sylvie Cossette, Mariana Dumitrascu, Mary-Ellen French, Simon Jacques-Ricard, Philippe Jouvet, Jean-Sébastien Joyal, Vincent Laguë, Ariane Larouche, Jacques Michaud, Hugo Soudeyns. Centre intégré universitaire de santé et services sociaux du Saguenay-Lac-Satin-Jean: Christian Allard, Donald Aubin, Audrey Baril, Jean-François Betala-Belinga, Jean-Sébastien Bilodeau, Cynthia Bouchard, Luigi Bouchard, Isabelle Boulianne, Marie-Ève Dubeau, Marco Duchesne, Martin Fortin, Hélène Gagné, Ann-Lorie Gagnon, Christine Gagnon, François Gagnon, Maude Gagnon, Caroline Giroux, Doria Grimard, Sharon Hatcher, Guillaume Jourdan, Julie Labbé, Marlène Landry, Julie Larouche, Vanessa Larouche, Myriam Lavoie, Julie Létourneau, Kara Létourneau, Nadia Mior, Louise Poirier, Stéphanie Potvin, Marie-Andrée Régis, Roger Savard, Ruth St-Gelais, Mélanie Tanguay, Nancy Tremblay, Véronick Tremblay, Karine Truchon. Hôpital Maisonneuve-Rosemont/ Centre intégré universitaire de santé et services sociaux de l’Est-de-l’Ile-de-Montréal: Denis-Claude Roy, Martin Sirois, Danae Tassy, Jan Alexis Tremblay. Hôpital Sacré-Cœur/Centre intégré universitaire de santé et services sociaux du Nord-de-l’Ile-de-Montréal: Christine Arsenault, Kim Beauchesne, Sylvie Beaulieu, Paul Bergeron, Mariane Bertagnolli, Caroline Bouchard, Yiorgos Alexandros Cavayas, Marie-Laure Dablaka, Anatolie Ducas, Mathilde Duplaix, Marc-André Gagné, Kim Gilbert, Julie Hammamji, Anne-Marie Ledoux, Claudia Ménard, Sébastien Saucier, Daniel Sinnett, Carla Sterlin, Virginie Williams. Institut universitaire en santé mentale Douglas/Centre intégré universitaire de santé et services sociaux du Ouest-de-l’Ile-de-Montréal: Sylvanne Daniels, Nadir Hadid, Amine Saadi, Volodymyr Yerko. Jewish General Hospital: Tala Abdullah, Olumide Adeleye, Darin Adra, Jonathan Afilalo, Marc Afilalo, Zaman Afrasiabi, Noor Almamlouk, Amanda Babitt, Gerry Batist, Stéphane Benhamou, Bessy Bitzas, Kathleen Blagrave, Levon Boodaghians, Mariem Bouab, Bluma Brenner, Janet Chan, Jesse Chevrier, Justin Cross, Bianca D’Iorio, Gaby Dipancrazio, Vince Forgetta, Melyssa Fortin, Diane Gaudreau, Biswarup Ghosh, Celia Greenwood, Charlotte Guzman, Amanda Hakala, Gay Hazan, Danielle Henry, Esther Kang, Laetitia Laurent, Geneviève Lefebvre, Melanie Leung, Chen Liang, Rod McInnes, David Morrison, Alexander Ni, Kimchi Nofar, Marianna Olegovna Orlova, Gabriel Ouellette, Damon Palmer, Louis Petitjean, Nardin Rezk, Jennifer Robinson, Lawrence Rosenberg, Myriam Sahi, Erwin Schurr, Lingqiao Song, Samy Suissa, Phil Troy, Christine Tselios, Branka Vulesevic, Xiaoqing Xue, You Jia Zhong. Laboratoire de Télématique Biomédicale: Mina Dligui, Éric Rousseau, Yvan Fortier. McGill University: David Anderson, Alexandre Belisle, Ariane Boisclair, Guillaume Bourque, David Buckeridge, David Bujold, Elizabeth Caron, Martha Crago, Corinne Darmond, Ksenia Egorova, Tim Evans, Philippe Gros, Peter Ho, Tony Kwan, David Langlais, Mark Lathrop, Claire Le Moigne, Pierre Lepage, Markus Munter, Guillaume Lesage, Kristina Öhrvall, Antoine Paccard, Ioannis Ragoussis, Maryam Rajaee, Janick Saint-Cyr, Rob Sladek, Alfredo Staffa, Patrick Willett. McGill University Health Centre: Maria Bazan, Nick Bertos, Julie Bérubé, Miguel Burnier, Melissa Gaudet, Marie Hirtle, Marianne Issac, Bruce Mazer, Geoffrey McKay, Andrea Mogas, Naiana Muntini, Brigitte Paquet, Hansi Peiris, Anna Perez, Ciriaco Piccirillo, Rhyan Pineda, Lucie Roussel, Sandeep Vanamala, Rosemary Wagner. National Microbiology Lab: Guillaume Poliquin. Quebec Heart and Lung Institute: Sabrina Biardel, Jamila Chakir, Stéphanie Gormley, Philippe Joubert, Christine Racine, Denis Richard. Réseau Québécois COVID-19 –Pandémie: Vincent Dumez, Amélie Forget, François Lamontagne. Touché Créations: François Brouillet. Université du Québec à Chicoutimi: Stéphane Allaire, Jessica Bélanger, Anne-Marie Boucher-Lafleur, Marie-Ève Bradette-Hébert, Yves Chiricota, Frédéric Desgagné, Claire Fournier, Sandra Lessard, Marie-Josée Roy, Claude Thibeault.

Data Availability

Data with a very low risk of re-identification and no particular sensitivity (“open access data”), such as aggregated patient data from the different cohorts is available via the BQC19 website (www.BQC19.ca) or can be requested by email at: info@bqc19.ca. Upon completion of the study, the publicly available data will be deposited on a repository with the link provided in the comment section of the article. The stored biological materials will be accessed through a controlled system. Data that has a direct or high risk of re-identification will also go through a tightly controlled access process available at BQC19.ca and described in greater details in the manuscript.

Funding Statement

This biobank is financially support by the Fonds de recherche du Québec - Santé (FRQS), Genome Québec and the Public Health Agency of Canada (PHAC). The funders initiated the project to support the research community facing the COVID-19 related sanitary emergency.

References

  • 1.Marshall JC, Murthy S, Diaz J, Adhikari NK, Angus DC, Arabi YM, et al. A minimal common outcome measure set for COVID-19 clinical research. The Lancet Infectious Diseases. 2020. August 1;20(8):e192–7. 10.1016/S1473-3099(20)30483-7 [DOI] [PMC free article] [PubMed] [Google Scholar]
  • 2.Heyer E, Tremblay M. Variability of the genetic contribution of Quebec population founders associated to some deleterious genes. Am J Hum Genet. 1995. April;56(4):970–8. [PMC free article] [PubMed] [Google Scholar]
  • 3.Scriver CR. Human genetics: lessons from Quebec populations. Annu Rev Genomics Hum Genet. 2001;2:69–101. 10.1146/annurev.genom.2.1.69 [DOI] [PubMed] [Google Scholar]
  • 4.Braekeleer MD. Hereditary Disorders in Saguenay-Lac-St-Jean (Quebec, Canada). HHE. 1991;41(3):141–6. [DOI] [PubMed] [Google Scholar]
  • 5.Laprise C. The Saguenay-Lac-Saint-Jean asthma familial collection: the genetics of asthma in a young founder population. Genes Immun. 2014. April;15(4):247–55. 10.1038/gene.2014.12 [DOI] [PubMed] [Google Scholar]

Decision Letter 0

John S Lambert

5 Mar 2021

PONE-D-20-40382

The Biobanque quebecoise de la COVID-19 (BQC19)- A case-control bioresource to prospectively study the clinical and biological determinants of COVID-19 clinical trajectories

PLOS ONE

Dear Dr. Rousseau,

Thank you for submitting your manuscript to PLOS ONE. After careful consideration, we feel that it has merit but does not fully meet PLOS ONE’s publication criteria as it currently stands. Therefore, we invite you to submit a revised version of the manuscript that addresses the points raised during the review process.

Please submit your revised manuscript by Apr 19 2021 11:59PM. If you will need more time than this to complete your revisions, please reply to this message or contact the journal office at plosone@plos.org. When you're ready to submit your revision, log on to https://www.editorialmanager.com/pone/ and select the 'Submissions Needing Revision' folder to locate your manuscript file.

Please include the following items when submitting your revised manuscript:

  • A rebuttal letter that responds to each point raised by the academic editor and reviewer(s). You should upload this letter as a separate file labeled 'Response to Reviewers'.

  • A marked-up copy of your manuscript that highlights changes made to the original version. You should upload this as a separate file labeled 'Revised Manuscript with Track Changes'.

  • An unmarked version of your revised paper without tracked changes. You should upload this as a separate file labeled 'Manuscript'.

If you would like to make changes to your financial disclosure, please include your updated statement in your cover letter. Guidelines for resubmitting your figure files are available below the reviewer comments at the end of this letter.

If applicable, we recommend that you deposit your laboratory protocols in protocols.io to enhance the reproducibility of your results. Protocols.io assigns your protocol its own identifier (DOI) so that it can be cited independently in the future. For instructions see: http://journals.plos.org/plosone/s/submission-guidelines#loc-laboratory-protocols

We look forward to receiving your revised manuscript.

Kind regards,

John S Lambert

Academic Editor

PLOS ONE

Journal Requirements:

When submitting your revision, we need you to address these additional requirements.

1. Please ensure that your manuscript meets PLOS ONE's style requirements, including those for file naming. The PLOS ONE style templates can be found at

https://journals.plos.org/plosone/s/file?id=wjVg/PLOSOne_formatting_sample_main_body.pdf and

https://journals.plos.org/plosone/s/file?id=ba62/PLOSOne_formatting_sample_title_authors_affiliations.pdf

2. In your Data Availability statement, you have not specified where the minimal data set underlying the results described in your manuscript can be found. PLOS defines a study's minimal data set as the underlying data used to reach the conclusions drawn in the manuscript and any additional data required to replicate the reported study findings in their entirety. All PLOS journals require that the minimal data set be made fully available. For more information about our data policy, please see http://journals.plos.org/plosone/s/data-availability.

Upon re-submitting your revised manuscript, please upload your study’s minimal underlying data set as either Supporting Information files or to a stable, public repository and include the relevant URLs, DOIs, or accession numbers within your revised cover letter. For a list of acceptable repositories, please see http://journals.plos.org/plosone/s/data-availability#loc-recommended-repositories. Any potentially identifying patient information must be fully anonymized.

Important: If there are ethical or legal restrictions to sharing your data publicly, please explain these restrictions in detail. Please see our guidelines for more information on what we consider unacceptable restrictions to publicly sharing data: http://journals.plos.org/plosone/s/data-availability#loc-unacceptable-data-access-restrictions. Note that it is not acceptable for the authors to be the sole named individuals responsible for ensuring data access.

We will update your Data Availability statement to reflect the information you provide in your cover letter.

3. One of the noted authors is a group or consortium (BQC19). In addition to naming the author group, please list the individual authors and affiliations within this group in the acknowledgments section of your manuscript. Please also indicate clearly a lead author for this group along with a contact email address.

[Note: HTML markup is below. Please do not edit.]

Reviewers' comments:

Reviewer's Responses to Questions

Comments to the Author

1. Is the manuscript technically sound, and do the data support the conclusions?

The manuscript must describe a technically sound piece of scientific research with data that supports the conclusions. Experiments must have been conducted rigorously, with appropriate controls, replication, and sample sizes. The conclusions must be drawn appropriately based on the data presented.

Reviewer #1: Yes

**********

2. Has the statistical analysis been performed appropriately and rigorously?

Reviewer #1: N/A

**********

3. Have the authors made all data underlying the findings in their manuscript fully available?

The PLOS Data policy requires authors to make all data underlying the findings described in their manuscript fully available without restriction, with rare exception (please refer to the Data Availability Statement in the manuscript PDF file). The data should be provided as part of the manuscript or its supporting information, or deposited to a public repository. For example, in addition to summary statistics, the data points behind means, medians and variance measures should be available. If there are restrictions on publicly sharing data—e.g. participant privacy or use of data from a third party—those must be specified.

Reviewer #1: Yes

**********

4. Is the manuscript presented in an intelligible fashion and written in standard English?

PLOS ONE does not copyedit accepted manuscripts, so the language in submitted articles must be clear, correct, and unambiguous. Any typographical or grammatical errors should be corrected at revision, so please note any specific errors here.

Reviewer #1: Yes

**********

5. Review Comments to the Author

Please use the space provided to explain your answers to the questions above. You may also include additional comments for the author, including concerns about dual publication, research ethics, or publication ethics. (Please upload your review as an attachment if it exceeds 20,000 characters)

Reviewer #1: The manuscript "The Biobanque québécoise de la COVID-19 (BQC19) – A case-control bioresource to

prospectively study the clinical and biological determinants of COVID-19 clinical trajectories" by Rousseau and colleagues describes the excellent work that has been completed by the authors and collaborators to assemble a biobank of samples and data for use in Covid-19 Research.

Their efforts have created a resource which will doubtless drive significant research output over the coming years. They should be congratulated on their efforts and should disseminate news of their achievement widely to ensure patients, the community, wider Quebec society and the international research community see the resource they have assembled.

Notwithstanding this, there are a number of points in the manuiscript that the authors shoudl address.

1. Methodology

Throughout the manuscriot the authors use the terms "case-control" and "cohort" interchangeably. Indeed following my review i am still unsure if this is a case control studty as the name suggest. It reads like a cohort study (which includes negatives controls). The importance of this point is not solely academic. It is vital as it underpins the ambition of the programme and the type of studies it will facilitate

2. The authors use the term "high quality" to describe the samples repeatedly. Howver they do not explain what they mean by this. What are the standards, what assessments are done, what is the quality system.

3. A number of standards for biobanks have emerged including ISO, and it would be helfpul for the authors to describe how their facilities / biobank complies to these standards

4. Significantly more information should be provided on Pre-analytical quality control. What tests will be done, what pre-analytical variables are collected. Are SPREC codes used ? this will help answer the questions above regarding quality.

5. The authors do not include Respiratory samples in the biobank, thus reducing the opportunity for viral genome sequencing as welll as respiratory pathogen host interaction studies. Perhaps the authors could comment on this

6. On page 10 the authors point out that "the consent process is specific to its own institution". How can the biobank be sure of standardisation?

7. The consent discussion on page 10, which is vital, moves into a dicussion about SOPs- i think these sections should be seperated.

8 On page 12 the authors say, "Usage of BQC19 samples and data is only possible if aligned with a participants consent". the authors shoulkd describe this in more detail including the consent types, how these are tracked, how is it checked to make sure the patients wishes are complied with... what is the process?

9. the results and discussion section is not well assembled . The main points that need to be presented here are

a) What % (and N) of the total number of hopitalised patients, were invited to participate

b) What % (and N) of those who were invited to participate gave consent

c) What % (and N) of those who consented have full samples sets ( even for acute phase)

d) There is no demographic data presented- this would be helpful to gauge how successful the biobank has been in collecting a representative sample of Quebecoise with covid-19

e) It would be helpful to understand the perfomance of the different sites... where did the samples come from, the relative perfomances of different sites. This is vital to assessing the performance of the network

10. he authors shoudl describe their audit and compliance plans, to ensure sites comply with the BQC19 SOPS- in the absence of this oversight, the concern is that this ill remain as just a sample collection from multiple sites, as opposed to an integrated biobank

11 It would be helpoful if the authors included within the discussion, theiur thoughts on the demand for data so far and what they anticipate will be the demand for data and samples going forward.

**********

6. PLOS authors have the option to publish the peer review history of their article (what does this mean?). If published, this will include your full peer review and any attached files.

If you choose “no”, your identity will remain anonymous but your review may still be made public.

Do you want your identity to be public for this peer review? For information about this choice, including consent withdrawal, please see our Privacy Policy.

Reviewer #1: No

[NOTE: If reviewer comments were submitted as an attachment file, they will be attached to this email and accessible via the submission site. Please log into your account, locate the manuscript record, and check for the action link "View Attachments". If this link does not appear, there are no attachment files.]

While revising your submission, please upload your figure files to the Preflight Analysis and Conversion Engine (PACE) digital diagnostic tool, https://pacev2.apexcovantage.com/. PACE helps ensure that figures meet PLOS requirements. To use PACE, you must first register as a user. Registration is free. Then, login and navigate to the UPLOAD tab, where you will find detailed instructions on how to use the tool. If you encounter any issues or have any questions when using PACE, please email PLOS at figures@plos.org. Please note that Supporting Information files do not need this step.

PLoS One. 2021 May 19;16(5):e0245031. doi: 10.1371/journal.pone.0245031.r002

Author response to Decision Letter 0


30 Mar 2021

Comments to the Author

Reviewer #1

General comment:

The manuscript "The Biobanque québécoise de la COVID-19 (BQC19) – A case-control bioresource to prospectively study the clinical and biological determinants of COVID-19 clinical trajectories" by Rousseau and colleagues describes the excellent work that has been completed by the authors and collaborators to assemble a biobank of samples and data for use in Covid-19 Research.

Their efforts have created a resource which will doubtless drive significant research output over the coming years. They should be congratulated on their efforts and should disseminate news of their achievement widely to ensure patients, the community, wider Quebec society and the international research community see the resource they have assembled.

Notwithstanding this, there are a number of points in the manuscript that the authors should address.

Response:

We are thankful for these encouragements and are working hard at promoting BQC19 as a resource to further research into COVID-19. Central to our dissemination strategy is the present research paper that we hope will reach a wide audience encouraging them to access our biological material, clinical and experimental data available for researchers. This is why we are grateful for the comments below that help improving our manuscript. In addition, we have updated the information with current enrollment data and the latest information on our procedures as part of the review process.

Comment 1

Methodology - Throughout the manuscript the authors use the terms "case-control" and "cohort" interchangeably. Indeed following my review i am still unsure if this is a case control study as the name suggest. It reads like a cohort study (which includes negatives controls). The importance of this point is not solely academic. It is vital as it underpins the ambition of the programme and the type of studies it will facilitate.

Response:

We agree and have replaced the term case-control bioresources with cohort (that includes negative controls) as it better reflects the nature of BQC19’s project.

Comment 2

The authors use the term "high quality" to describe the samples repeatedly. However they do not explain what they mean by this. What are the standards, what assessments are done, what is the quality system.

Response:

The reviewer is correct in pointing out that we did not define sufficiently what was meant by high quality biosamples. We have now included a new subsection (Biosamples pre-analytical quality control, page 12, lines 247-259) and table (Table 3, p.25) in the result section that state clearly the measures put in place to ensure the quality of the collected biosamples in addition to the standardization of protocols. The new paragraph is re-transcribed here:

Biosamples pre-analytical quality control

In order to ensure consistency in the preparation of biosamples collected for BQC19, all participating sites use the same SOPs (available at BQC19.ca), clearly detailing the exact protocol to be followed, including the type of primary container to be used (Table 3). In terms of pre-analytical quality assessment, we document the following information for each sample collected: date of collection, location of sample, associated barcode(s), SOPs used, time elapsed to biobank, precisions/explanations on delays, name of sample’s handler. Our protocol details that samples should ideally be processed in less than 6h from collection, the actual time (pre-centrifugation time) is recorded for each sample in the biobank management software. In addition, for PBMCs we document cell concentration, number of cells in sample (total cells count), freezing medium; for nucleic acids isolations, we document extraction date, extracted from [biological specimen], extraction method, diluent, absorbance measurements at 260nm, 280nm and 320nm, 260/280 ratio, dilution factor, concentration, total amount.

Comment 3

A number of standards for biobanks have emerged including ISO, and it would be helfpul for the authors to describe how their facilities / biobank complies to these standards.

Response:

A key feature of BQC19 was its development during a sanitary emergency period, with the elaboration of the ethical and legal framework and study protocols done as quickly and efficiently as possible to enable the collection of biological material and clinical data of the first occurring wave of infection (March 2020 in Québec). A year later, in view of the evolution of the pandemic, the appearances of new variants, the recruitment of vaccinated participants, the emphasis is still on being as responsive as possible to the continuously evolving pandemic situation. As the biobank is still in its development phase, it is too early to seek out certification for international standards. Following the reviewer’s comment, we asked the BQC19 coordinator to look into the ISBER biobank self-assessment tool as a path towards certification. At this early stage, it was not possible to complete enough of the 152 questions to obtain sufficient information. However, we do plan to seek out certification by having each site fill in the questionnaire and return it to us in the near future.

Having said that, the elaboration of the BQC19 has addressed from the get-go some of the standards described below:

1-Background information: The management framework, which is freely and publicly available on BQC19’s website, provide detailed information about the mission, structure and procedures of BQC19.

2-Repository planning considerations, facilities, storage equipment/environment: As appendices to the management framework, each site have given a detailed description of where samples and data are stored. This information has been reviewed by a coordinating Institutional Ethics Review Board (CHUM). We are holding discussion with provincial biobanking facilities for option on long-term storage of the thousand’s samples generated by the project.

3-Quality management: Quality management is first established by providing detailed SOPs that are not only distributed to each site but also publicly available via BQC19’s website. The biobank coordinator is responsible for ensuring that all updates to SOPs are distributed and put in place via the network of each site coordinators. Moreover, the biobank coordinator monitored the quality of the clinical data entry provided by each site. Our biobank management software captures numerous fields related to pre-analytical quality control as detailed in response to Comment 2 above.

4-Safety & training: The required training and safety procedures are detailed in BQC19’s management framework. The biobank coordinator ensures that a copy of supporting documents is sent to BQC19 from each participating institution.

5-Record management: The multicentric design of BQC19 is managed using the Nagano platform that enables the efficient distribution of updated documents pertaining to each participating sites. Moreover, the biobank has also a full-time manager, responsible for records keeping of the steering’s committee minutes, the budget (current and forecast), monthly reports to the governing board and yearly report to funding organizations. The biobank coordinator, also appointed full-time, ensures that BQC19 receives copies of relevant records from each site, pertaining to procedures, training and access. The BQC19 access officer is in charge of the web platform that manages access requests and record-keeping of the documentation pertaining to access, including minutes from the independent access committee.

6-Cost management: The overall budget is established by the steering committee and then approved by the governance committee. The biobank manager and coordinator work in tandem to establish detailed budgets, ensure each site adheres to guidelines and that expenses are tracked.

7-Legal and ethical issues for biospecimens: A member of the steering committee, Ma’n Zawati is responsible for legal and ethics issues, not only about biosamples but more generally as well. He works in tandem with the Institutional Ethics Review Board to ensure that we follow an appropriate legal and ethical framework.

8-Specimen access, utilization and destruction: Access procedures are developed based on whether biological material is required or not. Access procedures are established by BQC19’s steering committee, but it is an independent access committee that provides the evaluations of the request. The access officer is responsible for coordinating the access process. We have detailed Data and Material Transfer Agreements (D/MTAs) that are sent to end-users that define clearly legal and ethical obligation pertaining to their request. The process for samples destruction is detailed in BQC19’s management framework.

Comment 4

Significantly more information should be provided on Pre-analytical quality control. What tests will be done, what pre-analytical variables are collected. Are SPREC codes used ? this will help answer the questions above regarding quality.

Response:

Although we have not used the SPREC coding scheme per se (but we are adapting our biobank management software to include them), we have the information relating to each of the sample quality variable captured in our database. By looking at Table 3, the only information captured by SPREC codes that we do not have in BQC19 is the post-centrifugation time to storage. The other variables are there but coded differently. As stated in our response to Comment 2 above, a new paragraph and table has been provided in the manuscript in order to enable readers to assess pre-analytical quality control information much more readily. Moreover, a particularity of BQC19’s is the generation of analytical data from biosamples made available to all researchers via the access process. The analytical data is not only itself critically evaluated for quality internally but also informs us on the quality of the biosamples in the collection.

Comment 5

The authors do not include Respiratory samples in the biobank, thus reducing the opportunity for viral genome sequencing as welll as respiratory pathogen host interaction studies. Perhaps the authors could comment on this.

Response:

In the initial design we had envisaged collecting minimally nasal swabs and, in institutions where it was feasible, airway secretions. However, the particular context of the pandemic, especially during the first wave of infection, made this either difficult or simply not feasible. For example, no nasal swabs were available for research at that time, as they were all required for testing. Moreover, precautionary measures needed to be taken for the collection of airway-derived biosamples meant that only few centres were willing/equipped to handle the procedures. This was compounded by the limited supplies of personnel protection equipment (PPE).

That said, we agree with the reviewer that there can be tremendous value in joining information from viral sequencing to the BQC19 participants. To directly address this point, since last summer we entered into discussion with the provincial facilities that performs analyses (sequencing) on all nasal swabs collected by health authorities (LSPQ), to establish a collaboration in order to link viral sequences to BQC19’s participants. This key piece of information can be found in the manuscript in Future directions subsection, networking (p.19-20, lines 416-422).

Comment 6

On page 10 the authors point out that "the consent process is specific to its own institution". How can the biobank be sure of standardisation?

Response:

Thank you for this comment. This specific sentence was removed from the paragraph as it is confusing. All BQC19 sites follow common SOPs (and abide by the same principles) to ensure standardization, something that is mentioned later in the same paragraph.

Comment 7

The consent discussion on page 10, which is vital, moves into a discussion about SOPs- i think these sections should be separated.

Response:

As suggested by the reviewer, the Consent discussion has been broken into two sections as suggested, one on considerations and the other on procedures.

Comment 8

On page 12 the authors say, "Usage of BQC19 samples and data is only possible if aligned with a participants consent". the authors should describe this in more detail including the consent types, how these are tracked, how is it checked to make sure the patients wishes are complied with... what is the process?

Response:

Thank you for this comment. Indeed, the sentence as it is does not provide a full picture. A sentence was added to explain that this is actually made possible by ensuring that the access process as well as the terms and conditions of any future use of data and samples respect the general permissions consented to by participants (p.12, lines 262-263). Given that the consent process is common across all sites, the access principles are consistent as well.

Comment 9

The results and discussion section is not well assembled. The main points that need to be presented here are

a) What % (and N) of the total number of hopitalised patients, were invited to participate

b) What % (and N) of those who were invited to participate gave consent

c) What % (and N) of those who consented have full samples sets (even for acute phase)

d) There is no demographic data presented- this would be helpful to gauge how successful the biobank has been in collecting a representative sample of Quebecoise with covid-19

e) It would be helpful to understand the performance of the different sites... where did the samples come from, the relative performances of different sites. This is vital to assessing the performance of the network.

Response:

As requested by the reviewer, we have collected and added these important data to the Results & Discussion section of the manuscript. More precisely:

Requests a) and b): In order to well report BQC19 participation acceptance rates, we added a sub-section named “Enrollment statistics” (p.14, lines 286-302). The new paragraph is re-transcribed here:

Enrollment statistics

For the hospitalized cohort, we report a 75.4% acceptance rate (2,1271 out of 2,878 invited to participate excluding patients who were discharged or scheduled to be discharged, deceased, incapacited, or inadmitted to care units without planned blood sampling; total form eight sites). In the non-hospitalized cohort, we report an acceptance rate of 80.2% (616 out of 768 invited to participate; total from five sites). The higher success rate in the non-hospitalized cohort may be explained by different enrolling strategies across sites (e.g. two of the sites used public advertising which includes a voluntarism bias). In term of dropout rates, we report 3.4% in the hospitalized cohort (73 dropouts out of 2171 enrolled participants) and a 0.5% rate in the non-hospitalized cohort (3 dropouts out of 616 enrolled participants). Finally, for both cohorts, reported reasons for refusal or study dropout include: “no interest”, “no benefit”, “don’t believe in research purposes”, “no time for follow-up”, “surrogate refusal”, “health related reasons/age”, “SARS-CoV-2 negative patient who though their participation wasn’t important”, “fear about the future uses of their data (or their children’s data)”, “parents’ fear of harming their children”, “unwillingness to move or to give more blood for follow-up visits”, “communication/understanding issues”, “difficulty in taking blood samples”, and “overburdened by hospitalization and their clinical follow-up/worried enough”.

Request c): A precision about the available full sample sets has been added in the text manuscript (p.15, lines 314-318) as following:

For the hospitalized cohort, where participants have been enrolled at the time of hospital admission (Day 0), the full sample sets currently available at each timepoint are shown in Figure 6A. For the non-hospitalized cohort, the full sample sets are available for all participants at Day 180 post-infection (Figure 6B). However, in this cohort, some participants may have been enrolled at Day 30 or Day 90 post-infection.

Request d): The biobank was not designed to capture an accurate reflection of the demographic representation of the province’s population, but to recruit cases as quickly as possible, to support research during the sanitary emergency. Available information on BQC19 demographics and remark about the representativity of the enrolled participants have been added in a separate paragraph of the BQC19 participants' characteristics and available data sub-section (p.15, lines 321-327). The new text is re-transcribed here:

The participants currently included in BQC19’s database are distributed in four Québec Health Regions: 1808 (78.6%) from Montréal (five enrolling sites); 291 (12.7%) from Estrie (one enrolling site); 144 (6.3%) from the Saguenay-Lac-Saint-Jean (one enrolling site); and 57 (2.5%) from the Capitale-Nationale (two enrolling sites). This is not an accurate reflection of the demographic representation of the province’s population, which was not the goal of this biobank, but rather to recruit participants as quickly as possible, to support research during the sanitary emergency.

Request e): Since all sites did not begin recruiting at the same time, that all sites are in active enrollment and that not all sites are located epidemiologic “hot spots” of Québec province wave infection, comparing their performance based on their enrollment statistics does not provide an accurate picture of the substantial commitment made each site. Therefore, we prefer reporting the aggregate data. However, data added in regard to Request d) above give the reader more precision on the Québec distribution of the BQC19 participants, which indirectly provide an indicator of sites performance.

Comment 10

The authors should describe their audit and compliance plans, to ensure sites comply with the BQC19 SOPS- in the absence of this oversight, the concern is that this ill remain as just a sample collection from multiple sites, as opposed to an integrated biobank

Response:

As mentioned in response to Comment 3 above, the biobank coordinator ensures compliance of each site. First, she makes sure each site has the correct documentation. Audit is made in two ways: 1) the first one is via the biobank management software that captures key information about respect of procedures. Moreover, the last portion of fees paid for each participant recruited to the study are only to each site once the biobank coordinator has reviewed the data, found it complete and in accordance with procedures. This is done at the end of every other month. Moreover, each site must provide documentation supporting safety and training of personnel on good clinical and laboratory practices, facilities assigned to storage of material and data related to BQC19’s project and a yearly report of activities.

Comment 11

It would be helpful if the authors included within the discussion, their thoughts on the demand for data so far and what they anticipate will be the demand for data and samples going forward.

Response:

We currently have received 11 requests for access to data only, 10 of them having been accepted. The process for access to data is continuous. Moreover, we have received 3 requests for biological material access, with 2 accepted during the first organized call for access (there are at least 3 fixed dates for submission to access biological material per calendar year currently). We have amended our conclusion to include the following in the manuscript text (p.20, lines 426-430): “We have already provided access to data or biological material to more than a dozen investigators in the first few months of operations. By providing access to the research community to clinical data as well as data derived from in-depth multi-omic analyses on the first 2000 samples, we are forecasting (and encouraging) an exponential increase in requests of this valuable and non-depletable resource.”

Attachment

Submitted filename: Response_to_reviewers_2021mar26_FINAL.docx

Decision Letter 1

John S Lambert

5 Apr 2021

The Biobanque québécoise de la COVID-19 (BQC19) – A cohort to prospectively study the clinical and biological determinants of COVID-19 clinical trajectories

PONE-D-20-40382R1

Dear Dr. Rousseau,

We’re pleased to inform you that your manuscript has been judged scientifically suitable for publication and will be formally accepted for publication once it meets all outstanding technical requirements.

Within one week, you’ll receive an e-mail detailing the required amendments. When these have been addressed, you’ll receive a formal acceptance letter and your manuscript will be scheduled for publication.

An invoice for payment will follow shortly after the formal acceptance. To ensure an efficient process, please log into Editorial Manager at http://www.editorialmanager.com/pone/, click the 'Update My Information' link at the top of the page, and double check that your user information is up-to-date. If you have any billing related questions, please contact our Author Billing department directly at authorbilling@plos.org.

If your institution or institutions have a press office, please notify them about your upcoming paper to help maximize its impact. If they’ll be preparing press materials, please inform our press team as soon as possible -- no later than 48 hours after receiving the formal acceptance. Your manuscript will remain under strict press embargo until 2 pm Eastern Time on the date of publication. For more information, please contact onepress@plos.org.

Kind regards,

John S Lambert

Academic Editor

PLOS ONE

Additional Editor Comments (optional):

responses have been provided and now adequate for publication

Reviewers' comments:

Acceptance letter

John S Lambert

7 May 2021

PONE-D-20-40382R1

The Biobanque québécoise de la COVID-19 (BQC19) – A cohort to prospectively study the clinical and biological determinants of COVID-19 clinical trajectorie

Dear Dr. Rousseau:

I'm pleased to inform you that your manuscript has been deemed suitable for publication in PLOS ONE. Congratulations! Your manuscript is now with our production department.

If your institution or institutions have a press office, please let them know about your upcoming paper now to help maximize its impact. If they'll be preparing press materials, please inform our press team within the next 48 hours. Your manuscript will remain under strict press embargo until 2 pm Eastern Time on the date of publication. For more information please contact onepress@plos.org.

If we can help with anything else, please email us at plosone@plos.org.

Thank you for submitting your work to PLOS ONE and supporting open access.

Kind regards,

PLOS ONE Editorial Office Staff

on behalf of

Dr. John S Lambert

Academic Editor

PLOS ONE

Associated Data

    This section collects any data citations, data availability statements, or supplementary materials included in this article.

    Supplementary Materials

    S1 File

    (DOCX)

    S2 File

    (DOCX)

    Attachment

    Submitted filename: Response_to_reviewers_2021mar26_FINAL.docx

    Data Availability Statement

    Data with a very low risk of re-identification and no particular sensitivity (“open access data”), such as aggregated patient data from the different cohorts is available via the BQC19 website (www.BQC19.ca) or can be requested by email at: info@bqc19.ca. Upon completion of the study, the publicly available data will be deposited on a repository with the link provided in the comment section of the article. The stored biological materials will be accessed through a controlled system. Data that has a direct or high risk of re-identification will also go through a tightly controlled access process available at BQC19.ca and described in greater details in the manuscript.


    Articles from PLoS ONE are provided here courtesy of PLOS

    RESOURCES