Skip to main content
. 2021 Mar 18;2021(3):CD013881. doi: 10.1002/14651858.CD013881
NCT04380519
Trial name or title Study of the efficacy and safety of a single administration of olokizumab and RPH‐104 with standard therapy in patients with severe severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) infection (COVID‐19)
Methods RCT, placebo‐controlled, double‐blind study
Date of study: May 2020
Location: Russian Federation
Phase 2/3
Participants Randomised: 372 participants
Inclusion criteria
  • Signed and dated patient's Informed consent for participation in this study, or record of a medical board decision justifying patient's participation in case of patient is unable to state his/her will.

  • Having either of the following COVID‐associated respiratory syndromes:

    • pneumonia with oxygenation parameters SpO2 ≤ 93% (on room air) or respiratory rate greater than 30/min;

    • ARDS (PaO2/FiO2 ≤ 300 mmHg or SpO2/FiO2 ≤ 315 if PaO2 is not available).

  • COVID‐19 diagnosis based on:

    • laboratory‐confirmed SARS‐CoV‐2 infection as determined by PCR method; or

    • bilateral changes in the lungs typical for COVID‐19, based on chest computed tomography results.


Exclusion criteria
  • Hypersensitivity to the study drugs (RPH‐104 and/or OKZ), and/or its components

  • Presence of any of the following laboratory abnormalities:

    • absolute neutrophil counts < 0.5 x 10^9 L

    • white blood cell count < 2 x 10^9 L

    • platelet count < 50 x 10^9 L

    • ALT and/or AST ≥ 3.0 x ULN

  • Severe renal failure: creatinine clearance < 30 mL/min

  • Septic shock (to maintain mean arterial pressure ≥ 65 mm Hg and lactate ≥ 2 mmol/L in the absence of hypovolaemia, vasopressors are necessary)

  • Progression of disease up to the death in the following 24 hours regardless of treatment, as per Investigator's opinion

  • History of perforation of gastrointestinal tract, history of diverticulitis

  • Plasma infusion from convalescent COVID‐19 donors within 4 weeks prior to patient inclusion and/or planned infusion during the study

  • Recent (less then 5 half‐lives) administration of tocilizumab or sarilumab;

  • Recent (less then 5 half‐lives) or planned during the current study period use of the following drugs:

    • immunosuppressive biologics over than OKZ or RPH‐104, including but not limited, Interleukin‐1 (IL‐1) inhibitors (rilonacept, anakinra, canakinumab), IL‐6 inhibitors (except tocilizumab and sarilumab), IL‐17A inhibitors (secukinumab), tumour necrosis factor α (TNFα) inhibitors (adalimumab, infliximab, etanercept), anti‐B‐cell therapy and others

    • other immunosuppressors except methotrexate dosed up to 25 mg per week, including but not limited:

      • high‐dose glucocorticoids (> 1 mg/kg of prednisolone equivalent), oral and parental;

      • JAK inhibitors, cyclophosphamide, and others

  • Concurrent participation in another clinical trial

  • Pregnancy or lactation

  • History of active tuberculosis, active tuberculosis suspected by Investigator

Interventions Intervention
  • RPH‐104 (SC, 80 mg, single injection)

  • Olokizumab (SC, 64 mg, single injection)


Control interventions
  • Placebo

Outcomes Primary outcome
Secondary outcomes
  • Changes of patients' clinical status on a 6 points ordinal scale (day 2 until day 15, day 29)

  • Mortality (day 1 until day 29)

  • Time to clinical improvement of clinical status (day 1 until day 29)

Starting date Study start date: 23 April 2020
Study completion date: 24 July 2020
Contact information R‐Pharm, Mikhail Samsonov
Notes Completed