Trial Outcomes & Findings for Tregs for the Treatment of Acute Respiratory Distress Syndrome (ARDS) Associated With COVID-19 (regARDS) (NCT NCT05027815)

NCT ID: NCT05027815

Last Updated: 2023-06-05

Results Overview

DLT is defined as any related treatment-emergent adverse event (TEAE) with a National Cancer Institute Common Terminology Criteria for Adverse Events Version 5.0 (NCI CTCAE 5.0) grade ≥ 3 which also represents a shift from baseline clinical status of ≥ 1 NCI CTCAE grade

Recruitment status

TERMINATED

Study phase

PHASE1

Target enrollment

7 participants

Primary outcome timeframe

28 days post infusion

Results posted on

2023-06-05

Participant Flow

Participants were recruited from participating medical centers with the first participant consented September 23, 2021 and the last participant consented February 10, 2022.

Of 7 participants consented, 4 met eligibility criteria and were assigned to a treatment arm. Three were enrolled in the 100x10\^6 cells arm, and one was enrolled in the 200 x 10\^6 cells arm.

Participant milestones

Participant milestones
Measure
cePolyTregs 100 x10^6 Cells Open Label
single dose of 100 x 10\^6 cells by IV infusion Cryopreserved Ex Vivo Expanded Polyclonal CD4+CD127lo/-CD25+ T Regulatory Cells: cryopreserved cellular therapy product in cryostor CS5, for IV infusion
cePolyTregs 200 x10^6 Cells Open Label
single dose of 200 x 10\^6 cells by IV infusion Cryopreserved Ex Vivo Expanded Polyclonal CD4+CD127lo/-CD25+ T Regulatory Cells: cryopreserved cellular therapy product in cryostor CS5, for IV infusion
Overall Study
STARTED
3
1
Overall Study
COMPLETED
1
0
Overall Study
NOT COMPLETED
2
1

Reasons for withdrawal

Reasons for withdrawal
Measure
cePolyTregs 100 x10^6 Cells Open Label
single dose of 100 x 10\^6 cells by IV infusion Cryopreserved Ex Vivo Expanded Polyclonal CD4+CD127lo/-CD25+ T Regulatory Cells: cryopreserved cellular therapy product in cryostor CS5, for IV infusion
cePolyTregs 200 x10^6 Cells Open Label
single dose of 200 x 10\^6 cells by IV infusion Cryopreserved Ex Vivo Expanded Polyclonal CD4+CD127lo/-CD25+ T Regulatory Cells: cryopreserved cellular therapy product in cryostor CS5, for IV infusion
Overall Study
Death
2
1

Baseline Characteristics

Tregs for the Treatment of Acute Respiratory Distress Syndrome (ARDS) Associated With COVID-19 (regARDS)

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
cePolyTregs 100 x10^6 Cells Open Label
n=3 Participants
single dose of 100 x 10\^6 cells by IV infusion Cryopreserved Ex Vivo Expanded Polyclonal CD4+CD127lo/-CD25+ T Regulatory Cells: cryopreserved cellular therapy product in cryostor CS5, for IV infusion
cePolyTregs 200 x10^6 Cells Open Label
n=1 Participants
single dose of 200 x 10\^6 cells by IV infusion Cryopreserved Ex Vivo Expanded Polyclonal CD4+CD127lo/-CD25+ T Regulatory Cells: cryopreserved cellular therapy product in cryostor CS5, for IV infusion
Total
n=4 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
2 Participants
n=5 Participants
1 Participants
n=7 Participants
3 Participants
n=5 Participants
Age, Categorical
>=65 years
1 Participants
n=5 Participants
0 Participants
n=7 Participants
1 Participants
n=5 Participants
Sex: Female, Male
Female
1 Participants
n=5 Participants
0 Participants
n=7 Participants
1 Participants
n=5 Participants
Sex: Female, Male
Male
2 Participants
n=5 Participants
1 Participants
n=7 Participants
3 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
3 Participants
n=5 Participants
1 Participants
n=7 Participants
4 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
1 Participants
n=5 Participants
0 Participants
n=7 Participants
1 Participants
n=5 Participants
Race (NIH/OMB)
White
2 Participants
n=5 Participants
1 Participants
n=7 Participants
3 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Region of Enrollment
United States
3 participants
n=5 Participants
1 participants
n=7 Participants
4 participants
n=5 Participants

PRIMARY outcome

Timeframe: 28 days post infusion

DLT is defined as any related treatment-emergent adverse event (TEAE) with a National Cancer Institute Common Terminology Criteria for Adverse Events Version 5.0 (NCI CTCAE 5.0) grade ≥ 3 which also represents a shift from baseline clinical status of ≥ 1 NCI CTCAE grade

Outcome measures

Outcome measures
Measure
cePolyTregs 100 x10^6 Cells Open Label
n=3 Participants
single dose of 100 x 10\^6 cells by IV infusion Cryopreserved Ex Vivo Expanded Polyclonal CD4+CD127lo/-CD25+ T Regulatory Cells: cryopreserved cellular therapy product in cryostor CS5, for IV infusion
cePolyTregs 200 x10^6 Cells Open Label
n=1 Participants
single dose of 200 x 10\^6 cells by IV infusion Cryopreserved Ex Vivo Expanded Polyclonal CD4+CD127lo/-CD25+ T Regulatory Cells: cryopreserved cellular therapy product in cryostor CS5, for IV infusion
Number of Participants Who Experienced Dose-Limiting Toxicities (DLTs)
0 Participants
0 Participants

Adverse Events

cePolyTregs 100 x10^6 Cells Open Label

Serious events: 3 serious events
Other events: 2 other events
Deaths: 2 deaths

cePolyTregs 200 x10^6 Cells Open Label

Serious events: 1 serious events
Other events: 1 other events
Deaths: 1 deaths

Serious adverse events

Serious adverse events
Measure
cePolyTregs 100 x10^6 Cells Open Label
n=3 participants at risk
single dose of 100 x 10\^6 cells by IV infusion Cryopreserved Ex Vivo Expanded Polyclonal CD4+CD127lo/-CD25+ T Regulatory Cells: cryopreserved cellular therapy product in cryostor CS5, for IV infusion
cePolyTregs 200 x10^6 Cells Open Label
n=1 participants at risk
single dose of 200 x 10\^6 cells by IV infusion Cryopreserved Ex Vivo Expanded Polyclonal CD4+CD127lo/-CD25+ T Regulatory Cells: cryopreserved cellular therapy product in cryostor CS5, for IV infusion
Renal and urinary disorders
Renal Failure requiring renal replacement therapy by CRRT
33.3%
1/3 • Number of events 1 • up to 84 days post treatment
0.00%
0/1 • up to 84 days post treatment
Respiratory, thoracic and mediastinal disorders
Aspiration
33.3%
1/3 • Number of events 1 • up to 84 days post treatment
0.00%
0/1 • up to 84 days post treatment
Respiratory, thoracic and mediastinal disorders
Refractory Hypoxemia
33.3%
1/3 • Number of events 1 • up to 84 days post treatment
0.00%
0/1 • up to 84 days post treatment
Infections and infestations
Ventilator-Associated Pneumonia
0.00%
0/3 • up to 84 days post treatment
100.0%
1/1 • Number of events 1 • up to 84 days post treatment

Other adverse events

Other adverse events
Measure
cePolyTregs 100 x10^6 Cells Open Label
n=3 participants at risk
single dose of 100 x 10\^6 cells by IV infusion Cryopreserved Ex Vivo Expanded Polyclonal CD4+CD127lo/-CD25+ T Regulatory Cells: cryopreserved cellular therapy product in cryostor CS5, for IV infusion
cePolyTregs 200 x10^6 Cells Open Label
n=1 participants at risk
single dose of 200 x 10\^6 cells by IV infusion Cryopreserved Ex Vivo Expanded Polyclonal CD4+CD127lo/-CD25+ T Regulatory Cells: cryopreserved cellular therapy product in cryostor CS5, for IV infusion
Respiratory, thoracic and mediastinal disorders
Pneumonmediastinum
33.3%
1/3 • Number of events 1 • up to 84 days post treatment
0.00%
0/1 • up to 84 days post treatment
Vascular disorders
hypotension
33.3%
1/3 • Number of events 1 • up to 84 days post treatment
0.00%
0/1 • up to 84 days post treatment
General disorders
Fever
0.00%
0/3 • up to 84 days post treatment
100.0%
1/1 • Number of events 1 • up to 84 days post treatment

Additional Information

Jonathan Esensten MD, PhD

University of California, San Francisco

Phone: 415-502-3785

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place