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Completed

NCT Number: NCT04582201

A Clinical Trial to Evaluate the Safety of agenT-797 in COVID-19 Participants With ARDS

A Phase 1 study of agenT-797 to treat moderate to severe acute respiratory syndrome in Coronavirus disease 2019 (COVID-19) participants.

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 1

Primary location

Saint John's Cancer Institute, Santa Monica, California, United States

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About this study

This is a Phase 1 study to evaluate the safety and efficacy of agenT-797, an unmodified, allogeneic invariant natural killer T cells (iNKT) therapy, in participants with COVID-19, requiring mechanical ventilation, and with moderate to severe acute respiratory distress syndrome (ARDS) as determined by the Berlin definition.

The study will be conducted in 2 parts. Part 1 will employ a standard 3+3 dose escalation design of agenT-797. All participants will receive a single infusion of agenT-797. Participants will also receive other treatments and supportive care per discretion of the principal investigator. Once the maximum tolerated dose of agenT-797 has been cleared in Part 1, Part 2 of the study will be opened and enroll eligible participants in the Expansion Cohort.

A safety monitoring committee will be established to assess safety and decide on escalation to next cohort and expansion dose, as well as any protocol modification to include less severe cases.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Voluntarily agree to participate and ability to provide informed consent or have duly appointed health care proxy with the authority to consent.
  • Confirmed diagnosis of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection by polymerase chain reaction test or equivalent approved test.
  • Inpatient hospitalization.
  • Evidence of SARS-CoV-2 infection with the diagnosis of moderate to severe ARDS per Berlin definition, no more than 2 weeks prior to study enrollment.
  • Participants, or duly appointed health care proxy with the authority to consent, must consent to placement of a central venous access line for the administration of agenT-797.

Exclusion criteria

  • Currently participating and receiving study therapy of an investigational agent that is not registered for any other indication. Note: Participants may receive the standard of care for SARS-CoV-2 infection as per institutional practices.
  • Presence of comorbidities limiting expected survival of <1 month.
  • Any comorbidity which in the opinion of the investigator may preclude/confound study required safety and efficacy assessments.
  • Clinically significant cardiomyopathy.
  • Receipt of non-oncology vaccines containing live virus for prevention of infectious diseases within 4 weeks prior to first dose of study treatment.
  • Known hypersensitivity to natural killer cells or their preservation solution.
  • Active systemic bacterial or fungal infection or viral co-infection.
  • Legally incapacitated or has limited legal capacity.
  • Pregnant or lactating women.

Treatment and study plan

agenT-797

Drug

agenT-797 is an off-the-shelf cell therapy consisting of ≥ 95% allogeneic human unmodified iNKT cells isolated from 1 healthy donor mononuclear cell apheresis unit and expanded ex vivo.

Primary outcomes

  1. Number of Participants with Treatment-emergent Adverse Events

    Time frame: Baseline through Month 6

  2. Number of Participants with Dose-limiting Toxicities

    Time frame: Baseline through Month 6

Secondary outcomes

  1. Time to Extubation

    Time frame: Up to Day 30

  2. Change from Baseline in C-reactive Protein (CRP)

    Time frame: Baseline through Day 30 (every 12 hours, as feasible)

    CRP levels will be used to assess cytokine release syndrome.

  3. All-cause Mortality

    Time frame: Day 30 and Month 6

  4. Decay in Quantitative Viral Burden from Upper and Lower Respiratory Tract Samples

    Time frame: Day 30

  5. Change from Baseline at Day 30 in Number of Allogeneic iNKT Cells

    Time frame: Baseline, Day 30

Sponsors and collaborators

Lead sponsor

MiNK Therapeutics

Industry

Registry information

Official study title

A Phase 1 Study of agenT-797 to Treat Moderate to Severe Acute Respiratory Syndrome in COVID-19 Patients

Important dates

Study start
2020
Primary completion
2023
Study completion
2023
First posted
Oct 9, 2020
Registry last updated
Dec 30, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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