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Could donor immune cells beat COVID-19? new trial begins.

NCT ID NCT04896606

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests whether special immune cells (called T cells) taken from a family member who already recovered from COVID-19 can safely treat mild to moderate COVID-19 in hospitalized adults. The cells are designed to attack the virus. The trial involves 50 participants and aims to see if the treatment is safe and helps control the disease.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 1/2

Runs two stages together: safety and dose first, then whether the treatment works.

Participants

About 50 people

The number the study aims to enrol. It can still change while the study runs.

Started

Sep 2021

Expected to finish

Dec 2026

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 65 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

INCLUSION CRITERIA * Age ≥18 to 65 years. AND * Proven infection with SARS-CoV-2, defined as detection of SARS-CoV-2 by RT-PCR from nasopharyngeal swab or lower respiratory tract specimen AND * Hospitalized at the time of enrollment AND * HLA Matched Family Related donor with recent SARS-CoV-2 infection is at least 10 days out from symptom onset. A negative result for COVID-19 by a diagnostic test is not necessary to qualify the donor AND * In Stage I or II of disease (mild or moderate) at the time of enrollment (Table 1) AND * ONE of the following high-risk conditions: * Chronic lung disease not requiring oxygen at home prior to admission (including but not limited to COPD, cystic fibrosis, asthma and sickle cell disease); Underlying heart disease (including hypertension); Patients with an acute myocardial infarction within the last 3 months will require cardiology clearance prior to enrollment; Diabetes mellitus (type I or II) ; Obesity (BMI ≥ 30); Immunosuppressed, based on investigator's assessment. EXCLUSION CRITERIA: * Stage III disease (severe) at the time of enrollment (see Table 1) * Lack of an identified eligible HLA family related donor * No high-risk comorbidities defined in the inclusion criteria (Section 5.1) * Patient with acute GVHD \> grade 2 or extensive chronic GVHD at the time of enrollment * Patient treated with donor lymphocyte infusion (DLI) within 4 weeks prior to CTL Infusion * Patients with chronic respiratory failure requiring ventilator support and/or oxygen at home prior to admission are excluded * Patients with stage D heart failure and/or symptoms at rest are excluded * Renal function: patients with eGFR or CrCl \<30 mL/min/1.73 m2 will be excluded from study entry. * Liver function: Total bilirubin \> 2 mg/dl (unless Gilbert's syndrome) OR ALT/AST \> 5 x ULN * Patients currently listed for transplant or potentially eligible to receive organ transplants are excluded from this study * Patient with poor performance status determined by Karnofsky (patients \>16 years) or Lansky (patients ≤16 years) score ≤50% * Female patient of childbearing age who is pregnant or breast-feeding or not willing to use an effective method of birth control during study treatment and for at least 6 weeks after the last dose of SARS-CoV-2 CTLS. * Male subjects with female partners of childbearing age who are not willing to use an effective method of birth control during study treatment and for at least 6 weeks after the last dose of SARS-CoV-2 CTLS. * Concurrent use of following medications is prohibited: * Steroids (\>2 mg/kg/day prednisone equivalent); Immunotherapies within 4 weeks prior to CTL infusion including checkpoint blockade, ATG, Campath, CAR T cells, blinatumomab; Chemotherapy: Tyrosine kinase inhibitors and hydroxyurea must be stopped \> 72 hours prior to SARS-COV-2-CTL cell infusion; High dose chemotherapy must be stopped \> 2 weeks prior to SARS-CoV-2-CTLs. High dose chemotherapy is defined in this protocol as any cancer directed therapy causing myelosuppression; Pegylated-asparaginase must be stopped \> 4 weeks prior to SARS-COV-2-CTL infusion; Intrathecal chemotherapy must be stopped \> 1 week prior to SARS-COV-2-CTL infusion (e.g. intrathecal methotrexate); Anti T-cell Antibodies: Administration of any T cell lytic or toxic antibody (e.g. alemtuzumab) within 30 days prior to SARS-CoV-2-CTLs is prohibited.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    4 sites. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Children's Hospital of Pennsylvania

    NOT_YET_RECRUITING

    Philadelphia, Pennsylvania, 19104, United States

  • Medical College of Wisconsin/Children's Hospital of Wisconsin

    NOT_YET_RECRUITING

    Milwaukee, Wisconsin, 53226, United States

  • Nationwide Children's Hosptial

    NOT_YET_RECRUITING

    Columbus, Ohio, 43205, United States

  • New York Medical College

    RECRUITING

    Valhalla, New York, 10595, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.