CONvalescent Plasma for Hospitalized Adults With COVID-19 Respiratory Illness (CONCOR-1)
Summary
There is currently no treatment available for COVID-19, the acute respiratory illness caused by the novel SAR-CoV-2. Convalescent plasma from patients who have recovered from COVID-19 that contains antibodies to the virus is a potential therapy. On March 25th, 2020, the FDA approved the use of convalescent plasma under the emergency investigational new drug (eIND) category. Randomized trials are needed to determine the efficacy and safety of COVID-19 convalescent plasma for acute COVID-19 infection. The objective of the CONCOR-1 trial is to determine the efficacy of transfusion of COVID-19 convalescent plasma to adult patients admitted to hospital with COVID-19 infection at decreasing the frequency of in-hospital mortality in patients hospitalized for COVID-19. It is hypothesized that treating hospitalized COVID-19 patients with convalescent plasma early in their clinical course will reduce the risk of death, and that other outcomes will be improved including risk of intubation, and length of ICU and hospital stay. This pan-Canadian clinical trial has the potential to improve patient outcomes and reduce the burden on health care resources including reducing the need for ICU beds and ventilators.
Timeline
- Start
- 2020-03-14
- Primary completion
- 2021-03-05
- Completion
- 2021-06-16
Outcome
Missed primary endpoint
Stopped: “Study was terminated after the planned interim analysis as the pre-defined futility threshold was met”
registry analysis (superiority test); Convalescent Plasma vs Standard of Care; p = 0.18; Risk Ratio (RR) 1.16 (95% CI 0.94 to 1.43); wald test NCT04348656 ↗
paper Convalescent plasma did not reduce the risk of intubation or death at 30 d in hospitalized patients with COVID-19. PMID 34504336 ↗
Publications
- Background Wu JT, Leung K, Leung GM. Nowcasting and forecasting the potential domestic and international spread of the 2019-nCoV outbreak originating in Wuhan, China: a modelling study. Lancet. 2020 Feb 29;395(10225):689-697. doi: 10.1016/S0140-6736(20)30260-9. Epub 2020 Jan 31.
- Background 2. FDA USFDA. Investigational COVID-19 Convalescent Plasma - Emergency INDs [Web]. 2020 [Available from: https://www.fda.gov/vaccines-blood-biologics/investigational-new-drug-ind-or-device-exemption-ide-process-cber/investigational-covid-19-convalescent-plasma-emergency-inds accessed March 26th 2020.
- Begin P, Callum J, Jamula E, Cook R, Heddle NM, Tinmouth A, Zeller MP, Beaudoin-Bussieres G, Amorim L, Bazin R, Loftsgard KC, Carl R, Chasse M, Cushing MM, Daneman N, Devine DV, Dumaresq J, Fergusson DA, Gabe C, Glesby MJ, Li N, Liu Y, McGeer A, Robitaille N, Sachais BS, Scales DC, Schwartz L, Shehata N, Turgeon AF, Wood H, Zarychanski R, Finzi A; CONCOR-1 Study Group; Arnold DM. Convalescent plasma for hospitalized patients with COVID-19: an open-label, randomized controlled trial. Nat Med. 2021 Nov;27(11):2012-2024. doi: 10.1038/s41591-021-01488-2. Epub 2021 Sep 9.
- Begin P, Callum J, Heddle NM, Cook R, Zeller MP, Tinmouth A, Fergusson DA, Cushing MM, Glesby MJ, Chasse M, Devine DV, Robitalle N, Bazin R, Shehata N, Finzi A, McGeer A, Scales DC, Schwartz L, Turgeon AF, Zarychanski R, Daneman N, Carl R, Amorim L, Gabe C, Ellis M, Sachais BS, Loftsgard KC, Jamula E, Carruthers J, Duncan J, Lucier K, Li N, Liu Y, Armali C, Kron A, Modi D, Auclair MC, Cerro S, Avram M, Arnold DM. Convalescent plasma for adults with acute COVID-19 respiratory illness (CONCOR-1): study protocol for an international, multicentre, randomized, open-label trial. Trials. 2021 May 4;22(1):323. doi: 10.1186/s13063-021-05235-3.
Drugs
| Evaluation | Drug | Modality | Dose | Route |
|---|---|---|---|---|
| Subject | Convalescent Plasma | Protein / enzyme biologic | 500 ml | Intravenous |