Trial Outcomes & Findings for RGI-2001 for the Prevention of Acute Graft-vs-Host Disease in Subjects Following Allogeneic Hematopoietic Stem Cell Transplantation (NCT NCT04014790)

NCT ID: NCT04014790

Last Updated: 2024-05-28

Results Overview

Acute GVHD will be graded and assessed according to modified KEYSTONE criteria and the severity grade (Grade II through IV) were captured up through the first 100 days post-transplant

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

49 participants

Primary outcome timeframe

Day 100 post-transplant

Results posted on

2024-05-28

Participant Flow

Participant milestones

Participant milestones
Measure
RGI-2001
Subjects will be administered RGI 2001 in combination with standard of care treatment RGI-2001: Subjects will receive 6 weekly doses of RGI 2001, 100 μg/kg via IV administration after completion of alloHSCT Standard of Care: Standard of care prophylaxis regimen will be administered according to institutional guidelines
Overall Study
STARTED
49
Overall Study
COMPLETED
43
Overall Study
NOT COMPLETED
6

Reasons for withdrawal

Reasons for withdrawal
Measure
RGI-2001
Subjects will be administered RGI 2001 in combination with standard of care treatment RGI-2001: Subjects will receive 6 weekly doses of RGI 2001, 100 μg/kg via IV administration after completion of alloHSCT Standard of Care: Standard of care prophylaxis regimen will be administered according to institutional guidelines
Overall Study
Death
4
Overall Study
Adverse Event
1
Overall Study
Withdrawal by Subject
1

Baseline Characteristics

RGI-2001 for the Prevention of Acute Graft-vs-Host Disease in Subjects Following Allogeneic Hematopoietic Stem Cell Transplantation

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
RGI-2001
n=49 Participants
Subjects will be administered RGI 2001 in combination with standard of care treatment RGI-2001: Subjects will receive 6 weekly doses of RGI 2001, 100 μg/kg via IV administration after completion of alloHSCT Standard of Care: Standard of care prophylaxis regimen will be administered according to institutional guidelines
Age, Continuous
48.7 years
STANDARD_DEVIATION 11.89 • n=5 Participants
Sex: Female, Male
Female
22 Participants
n=5 Participants
Sex: Female, Male
Male
27 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
2 Participants
n=5 Participants
Race (NIH/OMB)
White
45 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
2 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
Region of Enrollment
United States
49 participants
n=5 Participants

PRIMARY outcome

Timeframe: Day 100 post-transplant

Population: intent to treat population

Acute GVHD will be graded and assessed according to modified KEYSTONE criteria and the severity grade (Grade II through IV) were captured up through the first 100 days post-transplant

Outcome measures

Outcome measures
Measure
RGI-2001
n=48 Participants
Subjects will be administered RGI 2001 in combination with standard of care treatment RGI-2001: Subjects will receive 6 weekly doses of RGI 2001, 100 μg/kg via IV administration after completion of alloHSCT Standard of Care: Standard of care prophylaxis regimen will be administered according to institutional guidelines
Grades II-IV aGVHD
11 Participants

SECONDARY outcome

Timeframe: Day 180 post-transplant

Population: Intent to treat

Acute GVHD will be graded and assessed within 180 days post-transplant

Outcome measures

Outcome measures
Measure
RGI-2001
n=48 Participants
Subjects will be administered RGI 2001 in combination with standard of care treatment RGI-2001: Subjects will receive 6 weekly doses of RGI 2001, 100 μg/kg via IV administration after completion of alloHSCT Standard of Care: Standard of care prophylaxis regimen will be administered according to institutional guidelines
Grades II-IV aGVHD
11 Participants

SECONDARY outcome

Timeframe: 1 year post-transplant

Population: intent to treat

The probability of mortality not preceded by relapse of the underlying malignancy will be estimated

Outcome measures

Outcome measures
Measure
RGI-2001
n=48 Participants
Subjects will be administered RGI 2001 in combination with standard of care treatment RGI-2001: Subjects will receive 6 weekly doses of RGI 2001, 100 μg/kg via IV administration after completion of alloHSCT Standard of Care: Standard of care prophylaxis regimen will be administered according to institutional guidelines
Non-relapse Mortality (NRM) Rates
2 Participants

SECONDARY outcome

Timeframe: 1 year post-transplant

Population: Intent to treat

The probability of survival without relapse of the underlying malignancy will be estimated

Outcome measures

Outcome measures
Measure
RGI-2001
n=48 Participants
Subjects will be administered RGI 2001 in combination with standard of care treatment RGI-2001: Subjects will receive 6 weekly doses of RGI 2001, 100 μg/kg via IV administration after completion of alloHSCT Standard of Care: Standard of care prophylaxis regimen will be administered according to institutional guidelines
Disease-free Survival (DFS)
40 Participants

SECONDARY outcome

Timeframe: 1 year post-transplant

Population: intent to treat

The probability of survival without relapse of the underlying malignancy, without severe (grades 3-4) acute GVHD, and without chronic GVHD requiring systemic immunosuppression will be estimated

Outcome measures

Outcome measures
Measure
RGI-2001
n=48 Participants
Subjects will be administered RGI 2001 in combination with standard of care treatment RGI-2001: Subjects will receive 6 weekly doses of RGI 2001, 100 μg/kg via IV administration after completion of alloHSCT Standard of Care: Standard of care prophylaxis regimen will be administered according to institutional guidelines
GvHD-free, Relapse Free Survival (GRFS)
26 Participants

SECONDARY outcome

Timeframe: 1 year post-transplant

Population: intent to treat

The probability of survival will be estimated

Outcome measures

Outcome measures
Measure
RGI-2001
n=48 Participants
Subjects will be administered RGI 2001 in combination with standard of care treatment RGI-2001: Subjects will receive 6 weekly doses of RGI 2001, 100 μg/kg via IV administration after completion of alloHSCT Standard of Care: Standard of care prophylaxis regimen will be administered according to institutional guidelines
Overall Survival (OS)
44 Participants

Adverse Events

RGI-2001

Serious events: 8 serious events
Other events: 49 other events
Deaths: 4 deaths

Serious adverse events

Serious adverse events
Measure
RGI-2001
n=49 participants at risk
Subjects will be administered RGI 2001 in combination with standard of care treatment (Tacrolimus and Methotrexate) RGI-2001: Subjects will receive 6 weekly doses of RGI 2001, 100 μg/kg via IV administration after completion of alloHSCT Standard of Care: Standard of care prophylaxis regimen will be administered according to institutional guidelines
Cardiac disorders
Myocarditis
2.0%
1/49 • Number of events 1 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.
Gastrointestinal disorders
Diarrhea
2.0%
1/49 • Number of events 1 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.
Infections and infestations
Septic Shock
2.0%
1/49 • Number of events 1 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.
Nervous system disorders
Headache
2.0%
1/49 • Number of events 1 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.
Reproductive system and breast disorders
Pelvic Pain
2.0%
1/49 • Number of events 1 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.
Respiratory, thoracic and mediastinal disorders
Pulmonary veno-occlusive disease
2.0%
1/49 • Number of events 1 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.
Respiratory, thoracic and mediastinal disorders
Upper respiratory infection
2.0%
1/49 • Number of events 1 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.
Vascular disorders
Deep Vein Thrombosis
2.0%
1/49 • Number of events 1 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.

Other adverse events

Other adverse events
Measure
RGI-2001
n=49 participants at risk
Subjects will be administered RGI 2001 in combination with standard of care treatment (Tacrolimus and Methotrexate) RGI-2001: Subjects will receive 6 weekly doses of RGI 2001, 100 μg/kg via IV administration after completion of alloHSCT Standard of Care: Standard of care prophylaxis regimen will be administered according to institutional guidelines
Blood and lymphatic system disorders
Anaemia
12.2%
6/49 • Number of events 6 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.
Gastrointestinal disorders
Abdominal Pain
14.3%
7/49 • Number of events 7 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.
Gastrointestinal disorders
Constipation
6.1%
3/49 • Number of events 3 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.
Gastrointestinal disorders
Diarrhea
18.4%
9/49 • Number of events 9 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.
Gastrointestinal disorders
Nausea
22.4%
11/49 • Number of events 11 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.
Gastrointestinal disorders
Stomatitis
18.4%
9/49 • Number of events 9 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.
Gastrointestinal disorders
Vomiting
18.4%
9/49 • Number of events 9 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.
General disorders
Fatigue
14.3%
7/49 • Number of events 7 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.
General disorders
Muscosal Inflammation
12.2%
6/49 • Number of events 6 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.
Investigations
Alanine Aminotransferase increased
12.2%
6/49 • Number of events 6 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.
Investigations
Aspartate Aminotransferase increased
6.1%
3/49 • Number of events 3 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.
Investigations
Blood Alkaline Phosphatase Increased
6.1%
3/49 • Number of events 3 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.
Investigations
Blood Creatinine increased
6.1%
3/49 • Number of events 3 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.
Investigations
Blood Lactate Dehyrogenase increased
6.1%
3/49 • Number of events 3 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.
Investigations
Neutrophil Count Decreased
12.2%
6/49 • Number of events 6 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.
Investigations
Platelet Count Decreased
14.3%
7/49 • Number of events 7 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.
Investigations
White blood cell count decreased
12.2%
6/49 • Number of events 6 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.
Metabolism and nutrition disorders
Decreased Appetite
18.4%
9/49 • Number of events 9 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.
Metabolism and nutrition disorders
Hyperglycemia
8.2%
4/49 • Number of events 4 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.
Metabolism and nutrition disorders
Hyperphosphataemia
6.1%
3/49 • Number of events 3 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.
Metabolism and nutrition disorders
Hypomagnesaemia
12.2%
6/49 • Number of events 6 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.
Metabolism and nutrition disorders
Hyponatremia
8.2%
4/49 • Number of events 4 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.
Metabolism and nutrition disorders
Hypophosphataemia
6.1%
3/49 • Number of events 3 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.
Nervous system disorders
Dizziness
8.2%
4/49 • Number of events 4 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.
Nervous system disorders
Dysgeusia
10.2%
5/49 • Number of events 5 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.
Nervous system disorders
Headache
8.2%
4/49 • Number of events 4 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.
Nervous system disorders
Tremor
6.1%
3/49 • Number of events 3 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.
Respiratory, thoracic and mediastinal disorders
Dyspnoea
12.2%
6/49 • Number of events 6 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.
Skin and subcutaneous tissue disorders
Dry Skin
8.2%
4/49 • Number of events 4 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.
Skin and subcutaneous tissue disorders
Pruritis
8.2%
4/49 • Number of events 4 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.
Skin and subcutaneous tissue disorders
Rash
20.4%
10/49 • Number of events 10 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.
Vascular disorders
Hypertension
6.1%
3/49 • Number of events 3 • TEAE is defined as any AE reported on or after the first dose date of RGI-2001, or that was already present and worsened after the first dose date, up to 30 days after the last RGI-2001 dose date. TEAE were collected from sign of consent up through 9 weeks after transplant. TEAE for all cause mortality were collected up through 1 year.
TEAE were collected from sign of consent up through 9 weeks after transplant.

Additional Information

Chief Executive Officer

REGiMMUNE

Phone: +81-80-7022-7536

Results disclosure agreements

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