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. 2021 May 20;2021(5):CD013600. doi: 10.1002/14651858.CD013600.pub4

NCT04364737.

Study name Convalescent plasma to limit coronavirus associated complications: a randomized blinded phase 2 study comparing the efficacy and safety of anti‐SARS‐CoV2 plasma to placebo in COVID‐19 hospitalized patients
Methods
  • Trial design: phase 2 RCT, double‐blind (participant, investigator) 1:1 ratio, parallel assignment

  • Sample size: 1000

  • Setting: inpatient

  • Country: USA

  • Language: English

  • Number of centres: 2

Participants
  • Inclusion criteria: 

    • All sexes

    • Patients ≥ 18 years of age

    • Hospitalised for COVID‐19 respiratory symptoms

    • Hospitalised for < 72 h or within day 3‐7 days from first signs of illness

    • Laboratory‐confirmed COVID‐19

    • On supplemental oxygen, non‐invasive ventilation or high‐flow oxygen

    • Patients may be on other RCTs of pharmaceuticals for COVID ‐19 and patients who meet eligibility criteria will not be excluded on this basis

  • Exclusion criteria

    • Receipt of pooled immunoglobulin in past 30 days

    • Contraindication to transfusion or history of prior reactions to transfusion blood products

    • Invasive mechanical ventilation or ECMO

    • Volume overload secondary to congestive heart failure or renal failure

    • Intracranial bleed

Interventions
  • Intervention(s): SARS‐CoV‐2 donor CP

  • Details of CP:

    • Type of plasma: NR (from New York Blood Center)

    • Volume: ~250‐500 mL

    • Number of doses: 1‐2 units

    • Antibody‐titre: with antibodies to SARS‐CoV‐21 per 13 April 2020 directive by the FDA

    • Pathogen inactivated: NR

  • Treatment details, including time of plasma therapy (e.g. early stage of disease): respiratory symptoms requiring oxygen supplementation within 3‐7 days from the onset of illness or within 3 days of hospitalisation

  • Comparator: e.g.. lactated Ringer's solution or sterile saline

    • Equivalent volume to CP

  • Concomitant therapy: NR

  • Treatment cross‐overs: no

Outcomes
  • Primary study outcome(s):  

    • Percentage of participants reporting each severity rating on WHO ordinal scale for clinical improvement (time frame: 14 days post randomisation)

      • No clinical or virological evidence of infection

      • Not hospitalised, no limitations on activities

      • Not hospitalised, limitation on activities

      • Hospitalised, not requiring supplemental oxygen

      • Hospitalised, requiring supplemental oxygen

      • Hospitalised, on non‐invasive ventilation or high flow oxygen devices

      • Hospitalised, on invasive mechanical ventilation or ECMO

      • Death

  • Primary review outcomes reported

    • All‐cause mortality at hospital discharge: yes

      • see WHO Ordinal Scale up to 14 days post randomisation

    • Time to death: yes

      • Mortality (time frame: 7, 14, 28 days post randomisation). Rate of mortality

  • Secondary review outcomes reported

    • Number of participants with grade 3 and grade 4 AEs, including potential relationship between intervention and adverse reaction (e.g. TRALI, transfusion‐transmitted infection, TACO, TAD, acute transfusion reactions): no

    • Number of participants with SAEs: no

    • Improvement of clinical symptoms, assessed through need for respiratory support at up to 7 days; 8 ‐15 days; 16 to 30 days: yes 

      • Percentage of subjects reporting each severity rating on WHO ordinal scale for clinical improvement (time frame: 14 days and 28 days post randomisation)

    • 30‐day and 90‐day mortality: no

    • Admission on ICU: yes

      • Rates of ICU admission (time frame: 7, 14, 28 days post randomisation). Percentage of patients requiring ICU admission.

    • Length of stay on the ICU: no

    • Time to discharge from hospital: no

    • QoL: NR

  • Additional outcomes:

    • Percentage of participants reporting each severity rating on WHO ordinal scale for clinical improvement (time frame: 28 days post‐randomisation). See above for criteria in scale

    • Comparison in anti‐SARS‐CoV‐2 antibody titres (time frame: 0, 1, 7, 14, 28, 90 days post‐randomisation). Anti‐SARS‐CoV‐2 titres (IgM, IgG, IgA)

    • Proportion positive in SARS‐CoV‐2 RNA (time frame: 0, 7, 14, 28 days post‐randomisation). SARS‐CoV‐2 PCR in nasopharyngeal swabs

    • Changes from baseline in lymphocyte (time frame: 0, 1, 3, 7, 14 days post‐randomisation). Lymphocyte counts

    • Changes from baseline in neutrophils (time frame: 0, 1, 3, 7, 14 days post‐randomisation). Neutrophil counts

    • Changes from baseline in D‐dimer (time frame: 0, 1, 3, 7, 14 days post‐randomisation). D‐dimer level

    • Changes from baseline in fibrinogen (time frame: 0, 1, 3, 7, 14 days post‐randomisation). Fibrinogen level

    • Changes from baseline in T lymphocyte subsets (time frame: 0, 7, 28 days post‐randomisation). T cell subsets.

    • Changes from baseline in B lymphocyte subsets (time frame: 0, 1, 3, 7, 14 days post‐randomisation). B cell subsets

Starting date 17 April 2020
Contact information Mila B Ortigoza, MD, PhD: Mila.Ortigoza@nyulangone.org
Notes
  • Recruitment status: recruiting (NYU Langone Health​​​​​​​)

    • Montefiore Medical Center Active‐ Not recruiting

  • Prospective completion date: 30 April 2023

  • Sponsor/Funding: NYU Langone Health; Albert Einstein Medical Center