RADIANCE 2010.
Methods |
Study design: parallel group randomised controlled trial. Unit of randomisation and analysis: the participant (1 study eye per participant). If both eyes were eligible, the eye with worse VA (assessed at visit 1) was selected for the study treatment. However, if medical reasons and local ethical requirements dictated, the investigator could select the eye with the better VA as the study eye. If needed, the fellow eye was treated as per the investigator's discretion. |
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Participants |
Country: Australia, Canada, France, Germany, Hong Kong, Hungary, India, Italy, Japan, Korea, Lithuania, Poland, Portugal, Singapore, Slovak Republic, Spain, Switzerland, Turkey, UK (76 study centres) Setting: international, multicentre (see appendix of RADIANCE 2010) Number of participants: 277 Number of men: 68 Number of women: 209 Age (mean ± SD): 54.0 ± 14.0 years in Group 1, 56.1 ± 14.4 years in Group 2 and 57.4 ± 12.8 years in Group 3 Ethnic group: white (56.6% in Group 1, 60.3% in Group 2 and 58.2% in Group 3), Asian (42.5% in Group 1, 39.7% in Group 2 and 41.8% in Group 3) and Other (0.9% in Group 1). Inclusion criteria:
Exclusion criteria:
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Interventions |
Intervention (Group 1): ranibizumab treatment guided by VA stabilisation criteria (intravitreal ranibizumab 0.50 mg on day 1 and month 1, with further treatment determined by the VA stabilisation criterion, defined as no change in BCVA as compared with 2 preceding monthly visits) (106 participants). Comparator 1 (Group 2): ranibizumab treatment guided by disease activity criteria (intravitreal ranibizumab 0.50 mg on day 1, with further treatment based on disease activity determined by OCT and FA) (116 participants). Comparator 2 (Group 3): verteporfin PDT, with ranibizumab allowed as of month 3 (verteporfin PDT on day 1, with further treatment determined by treating investigator using ranibizumab 0.50 mg guided by disease activity criteria, verteporfin PDT, or both through month 3 to 11) (55 participants). |
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Outcomes |
Primary outcomes:
Secondary outcomes:
Follow‐up: 12 months VA measurement: ETDRS chart at a distance of 4 m. |
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Notes |
Date conducted: October 2010 to August 2012 Sources of funding: Novartis Pharma AG, Basel, Switzerland Declaration of interest: SW is on advisory boards of and has served as a consultant and a speaker for Allergan, Bayer, Heidelberg Engineering, Molecular Partners, Novartis, Roche and Optos. VJB reports grants and personal fees from Novartis during the conduct of the study and personal fees and non‐financial support from Bayer, Novartis, Allergan outside the submitted work. GL, UM, KO‐M and TS have nothing to disclose. TYW reports grants, personal fees, travel support and writing/reviewing fees from Novartis and Bayer and has served as a consultant for Abbott, Allergan, Bayer, Genentech, Novartis, Roche and Pfizer. RS reports grants from Novartis during the conduct of the study and has received grants from Bayer, Allergan, Thea and Alimera outside of the submitted work. SP and MG are employees of Novartis Pharma AG, Basel, Switzerland. Novartis Pharma AG, Switzerland, sponsored the study and was involved in the study conception and design, protocol writing, study drug provision, study co‐ordination, data collection, data analysis and data interpretation. Trial registration: NCT01217944 |
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Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Low risk | Quote: "A randomisation list was produced by Novartis Drug Supply Management using a validated system that automates the random assignment of treatment groups to randomisation numbers in the specified ratio. At enrolment, patients received the lowest available randomisation number that then assigned them in a 2:2:1 ratio to 1 of the 3 treatment groups." |
Allocation concealment (selection bias) | Low risk | Quote: "The randomisation numbers were generated using the following procedure to ensure that treatment assignment was unbiased and concealed from patients and investigator staff. A randomisation list was produced by or under the responsibility of Novartis DSM using a validated system that automates the random assignment of treatment arms to randomisation numbers in the specified ratio. The randomisation scheme for patients was reviewed and approved by a member of the Biostatistics Quality Assurance Group." (Email communication with Novartis Pharma AG, dated 10 June 2015) |
Blinding of participants and personnel (performance bias) All outcomes | Low risk | Quotes: "Due to the different appearances and routes of administration between the 2 treatments, all patients received either sham injection or PDT sham in conjunction with the study treatment. The PDT sham consisted of intravenous injection of 5% dextrose solution followed by light application of PDT." "The treating investigator was unmasked and administered the randomised study medication per the protocol; however, they were not involved in any other aspects of the study and could not communicate details of the treatment." |
Blinding of outcome assessment (detection bias) All outcomes | Low risk | Quotes: "To ensure masking, 2 investigators were involved at each study center. All study assessments were made by the evaluating investigator, VA assessor, or other site personnel who were masked to the treatment assignment." "The images (OCT) were reviewed by a central reading center to ensure standardized evaluation." "The fundus photography and FA images were independently reviewed by the central reading center (CRC) to ensure standardized evaluation." |
Incomplete outcome data (attrition bias) All outcomes | Low risk | Comment: 10 participants (5.7% in Group 1 and 3.4% in Group 2) discontinued from the study and the reason was recorded (see Figure 2). |
Selective reporting (reporting bias) | Low risk | Comment: the outcome measures were prespecified on ClinicalTrials.gov registration. |
Other bias | Low risk | Comment: no other bias identified. |