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NCT04348656 · ClinicalTrials.gov registry record · Phase 3

CONvalescent Plasma for Hospitalized Adults With COVID-19 Respiratory Illness (CONCOR-1)

A Phase 3 study, sponsored by Hamilton Health Sciences Corporation.

Terminated
Registry status
Phase 3
Development phase
940
Enrollment target

NCT04348656: Clinical Trial Phase 3 study, sponsored by Hamilton Health Sciences Corporation.

NCT04348656 is a Phase 3 study that was terminated before completion, run by Hamilton Health Sciences Corporation. The registered enrollment target is 940 participants, above the 772-participant average among 15,282 other Phase 3 trials with a reported enrollment target (22% higher). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT04348656, a Phase 3 study, was terminated before completion, sponsored by Hamilton Health Sciences Corporation.

TERMINATED
Registry status
Phase 3
Development phase
940 participants
Enrollment target

Study 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.

Primary Outcome

Endpoint of the need for intubation or patient death

Interventions

  • BIOLOGICAL Convalescent plasma

Trial Details

FieldValue
Enrollment Target 940 participants
Start Date 2020-03-14
Est. Completion 2021-06-16
Phase Phase 3

Why NCT04348656 stopped before completion

NCT04348656 is an interventional study that assigns participants to a tested intervention. The registered 940 participants enrollment target is mid-sized for trials with a published cap, above the 772-participant average among 15,282 other Phase 3 trials with a reported enrollment target (22% higher).

The record links to 0 conditions, and to 1 intervention - of which Convalescent plasma is the first listed.

NCT04348656 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT04348656 about?

NCT04348656 is a clinical study titled "CONvalescent Plasma for Hospitalized Adults With COVID-19 Respiratory Illness (CONCOR-1)". 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 conva...

What is the current status of trial NCT04348656?

This trial is currently terminated. It is a Phase 3 study. The enrollment target is 940 participants. The study started on 2020-03-14. Estimated completion is 2021-06-16.

What interventions are being tested in trial NCT04348656?

The interventions under investigation include: Convalescent plasma (BIOLOGICAL).

Who is sponsoring clinical trial NCT04348656?

This trial is sponsored by Hamilton Health Sciences Corporation, which has 5 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT04348656's enrollment target sits among peer trials

940 337th of 2000 higher than 1,663 of 2,000 other Phase 3 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 3 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT04348656, the US trial registry maintained by the National Library of Medicine. NCT04348656 (mid enrollment · none site footprint · terminated) retrieved and formatted by PlainTrial, see methodology.