Convalescent Plasma as Adjunctive Therapy for Hospitalized Patients With COVID-19 (Co-CLARITY)

University of the Philippines

Status and phase: Terminated; Phase 3; Phase 2

Conditions: Covid19

Treatments: Drug: Anti-SARS-CoV-2 convalescent plasma

Study type: Interventional

Funder types: Other

Identifiers

NCT04567173

PHRR200824-002868

Details and patient eligibility

About

This protocol provides access to investigational convalescent plasma for hospitalized patients with COVID-19. Following provision of informed consent, patients will be administered around 500 mL of convalescent plasma obtained from an individual who has recovered from a documented SARS-CoV-2 infection. The study aims to evaluate the efficacy and safety of anti-SARS-CoV-2 convalescent plasma as adjunctive therapy in preventing disease progression (prevention of ICU admission) among hospitalized patients with COVID-19. Safety outcomes include serious adverse events judged to be related to convalescent plasma. Other information which will be collected includes patient demographics and clinical data which includes quick SOFA scores, ventilator-free days, ICU-free days, dialysis-free days and 28-day mortality.

Full description

This is a phase 3, randomized, non-placebo controlled, open-label, single-center clinical trial which will assess the efficacy and safety of anti-SARS-CoV-2 convalescent plasma given from the 3rd to 14th day of illness after the onset of symptoms in preventing ICU admission among hospitalized COVID-19 patients compared to standard of care. Consecutive patients with COVID-19 admitted to the UP Philippine General Hospital will be offered participation into the study. Patients in the intervention group will receive one dose of type-specific anti-SARS-CoV-2 convalescent plasma (500 mL collected by whole blood donation or standard pheresis at the UP-PGH blood bank from a volunteer who recovered from COVID-19). The primary safety endpoints include serious adverse events judged to be related to convalescent plasma. The study also aims to compare anti-SARS-CoV-2 antibody titers and rates, levels, and duration of SARS-CoV-2 RNA in nasopharyngeal swabs using RT-PCR between the intervention and control groups.

Enrollment: 44 patients

Sex: All

Ages: 19+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Patient must be 19 years of age or older
• Hospitalized with COVID-19 and confirmed via SARS-CoV-2 RT-PCR testing
• Patient is willing and able to provide written consent and comply with all protocol requirements
• Patient agrees to storage of specimens for future testing

Exclusion criteria

• Female subjects with positive pregnancy test, are breastfeeding or planning to become pregnant/breastfeed during the study period

• Symptomatic illness exceeding 14 days from onset of illness at time of enrollment

• ICU admission on initial presentation at the hospital (includes patients with clinical indications for ICU admission as follows:

  1. Respiratory distress with requirement of O2 >6 lpm to maintain O2 sat >92%
  2. Rapid escalation of O2 requirement/significant work of breathing
  3. Hemodynamic instability: SBP <90, MAP <65

• Receipt of any blood products including pooled immunoglobulin or intravenous immunoglobulin (IVIg) in the past 30 days prior to enrolment

• Known IgA deficiency

• Presence of any contraindication to transfusion (or history of prior severe reactions to transfusion of blood products)

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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44 participants in 2 patient groups

Anti-SARS-CoV-2 convalescent plasma

Experimental group

Description:

About 500 mL of type-specific anti-SARS-CoV-2 convalescent plasma collected by whole blood donation or standard pheresis from a volunteer who recovered from COVID-19 transfused intravenously as 2 aliquots of 250 mL

Treatment:

Drug: Anti-SARS-CoV-2 convalescent plasma

Standard of care

No Intervention group

Description:

Patients in the control group are those will only receive local standard of care as deemed appropriate by the primary attending physicians and guided by institutional pathways