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COVID-19Phase 1/2NCT04384497

Convalescent Plasma for Treatment of COVID-19: An Exploratory Dose Identifying Study

A Phase 1/2 study testing SARS-CoV-2 convalescent plasma in people with COVID-19, run by Joakim Dillner at 2 sites in Sweden.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Convalescent plasma has been shown to be safe and effective for treatment of several diseases. Preliminary data indicates that it is safe and effective for treatment of COVID. However, data is limited to small studies and case series on severely ill patients. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
COVID-19
What is being tested?
SARS-CoV-2 convalescent plasma
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
10 participants
Where
2 sitesSweden
Study dates
7 May 2020to 1 Dec 2020
Phase
Phase 1/2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age 18 or older
  • Admitted to a study hospital
  • Active COVID-19 defined as symptoms + SARS CoV-2 identified from upper or lower airway samples
  • Negative pregnancy test taken before inclusion and use of an acceptable effective method of contraception until treatment discontinuation if the participant is a woman of childbearing potential
  • Written informed consent after meeting with a study physician and ability and willingness to complete follow up

Who cannot join

  • No matching plasma donor (Exact matching in both the ABO system is required)
  • Unavailability of plasma
  • Significant growth of alternative lower airway pathogen such as Streptococcus pneumoniae or Haemophilus influenzae in sputum
  • Estimated glomerular filtration rate <60 (kidney failure stage III or more)
  • Pregnancy (urinary-hcg)
  • Breast feeding
  • History of severe allergic reactions to foods or other substances that the donor may have been exposed to (for example severe peanut allergy)
  • Inability to give informed consent

Trial locations and contacts

2 sites in 1 country.

Sweden2 sites
  • Danderyd Hospital

    Danderyd, Stockholm County, 18257

  • Karolinska University Hospital

    Stockholm, 14186

Other trials in Sweden

About this study

Convalescent plasma has been shown to be safe and effective for treatment of several diseases. Preliminary data indicates that it is safe and effective for treatment of COVID. However, data is limited to small studies and case series on severely ill patients.

In a preliminary safety study 10 patients with severe COVID-19, defined as requiring supplementary oxygen, having fever and a duration of illness less than 11 days were treated with 200 ml of CP. CP was given as a slow infusion without obvious adverse events. Eight patients had viremia. One patient rapidly cleared the virus and recovered following CP treatment. CP infusion did not appear to clear viremia in 7/8 patients. Five of these were eventually admitted to ICU. Thus CP did not appear to cause acute toxicity but did not seem to be effective at the dose used. Viremia seemed to be a marker of a high risk of disease progression The proposed study thus aims to treat a high risk population identified by having viremia irrespective of but hopefully before they develop pulmonary injury such that they require supplementary oxygen therapy. Moreover the dose of plasma will be increased incrementally with the aim of clearing viremia as our initial study indicates that continued viremia is driving COVID-19.

Conditions
COVID-19
Being tested
SARS-CoV-2 convalescent plasma
Keywords
COVID-19 convalescent plasma treatment, SARS-CoV-2 infection, Dosing, Safety, Effectiveness
Medical subject headings
COVID-19

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • SARS-CoV-2 convalescent plasmaBiological

    Treatment with convalescent plasma (200ml, up to a maximum of 7 CP infusions). Plasma from consenting individuals who have recovered from SARS-CoV-2 infection.

Study groups in NCT04384497
Study groupRoleWhat they receive
Convalescent plasma treatmentExperimentalParticipants will receive 200 ml convalescent plasma daily until SARS-CoV-2 is no longer detectable in the blood up to a maximum of 7 CP infusions. CP will be given as a slow infusion over 1 hour. Patients will be monitored for adverse events, especially allergic reactions.
Receives: Biological: SARS-CoV-2 convalescent plasma

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number and proportion of patients with progression to ventilation or sustained requirement of supplementary oxygen therapy

    Progression to non-invasive or invasive ventilation or a sustained requirement of 15L of supplementary oxygen therapy in patients that are not eligible for intensive care treatment.

    Measured: Measured in the first 28 days after inclusion.

Secondary outcomes (6)
  1. Adverse events

    Adverse reactions and serious adverse reactions. The safety of the intervention will be assessed with regard to AEs, baseline medical conditions, and findings from the physical examination and laboratory tests. Possible adverse events will be elicited using a modification and Swedish translation (appendix 6) of Common Terminology Criteria for Adverse Events v5.0 and they will be continuously reported to the sponsor. Adverse events related to convalescent plasma therapy shall be followed to assess reversibility.

    Measured: The reporting period for AEs starts at inclusion and ends at the final follow-up visit 2 months after inclusion.

  2. Dose of plasma needed to clear viremia

    Measured as doses of convalescent plasma administered (1-7 infusions, 200ml).

    Measured: 28 days

  3. Clearance of viremia

    SARS-CoV-2 RNA detection by PCR in blood or serum. Blood samples for immunological analyses and serology will be taken daily until discharge, on day 28, and at 6 months.

    Measured: 6 months.

  4. Fever and symptoms

    Time to resolution of fever and symptoms. Breathing rate, peripheral oxygen saturation (measured with pulse oximetry after 20 minutes of rest), oxygen use, pulse, blood pressure, body temperature and mental state will be monitored 3 times/day while hospitalized.

    Measured: Until discharged from the hospital, up to 2 months

  5. Inflammatory parameters

    Time to normalization of inflammatory parameters. Blood samples for inflammatory parameters will be taken daily until normalized or discharged from the hospital.

    Measured: Until discharged from the hospital, up to 2 months

  6. Antibody response to SARS-CoV-2

    Characterization of the antibody response to SARS-CoV-2. Blood samples for immunological analyses and serology will be taken daily until discharge, on day 28, and at 6 months.

    Measured: 6 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted12 May 2020
  2. Study start7 May 2020
  3. Primary completion1 Jun 2020
  4. Study completion1 Dec 2020

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1/2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Model description
An open, non-randomised controlled, safety and dose identifying clinical trial
Masking
None (open label)
Enrolment
10 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04384497
Sponsor's protocol ID
CP2
Status last verified
Dec 2021
First submitted
7 May 2020
Last updated
3 Dec 2021
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: The investigators will be sharing the data, but the management plan is being designed.

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing SARS-CoV-2 convalescent plasma in people with COVID-19, run by Joakim Dillner at 2 sites in Sweden.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 3 Dec 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in Sweden. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number and proportion of patients with progression to ventilation or sustained requirement of supplementary oxygen therapy (time frame: Measured in the first 28 days after inclusion.). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 3 Dec 2021.

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