Trial Outcomes & Findings for Efficacy and Safety of a Donor Lymphocyte Preparation Depleted of Functional Host Alloreactive T-cells (ATIR) in Patients Undergoing a Peripheral Blood Stem Cell Transplant From a Related, Haploidentical Donor (NCT NCT00967343)

NCT ID: NCT00967343

Last Updated: 2021-06-14

Results Overview

TRM is defined as death due to causes other than disease relapse or progression, or other causes which are unrelated to the transplantation procedure (e.g. accident, suicide)

Recruitment status

TERMINATED

Study phase

PHASE2/PHASE3

Target enrollment

40 participants

Primary outcome timeframe

6, 12 and 24 months after the transplantation

Results posted on

2021-06-14

Participant Flow

Participant milestones

Participant milestones
Measure
ATIR
Donor lymphocyte preparation depleted of host functional alloreactive T-cells: Single intravenous infusion with 2x10E6 T-cells/kg
Overall Study
STARTED
40
Overall Study
COMPLETED
2
Overall Study
NOT COMPLETED
38

Reasons for withdrawal

Reasons for withdrawal
Measure
ATIR
Donor lymphocyte preparation depleted of host functional alloreactive T-cells: Single intravenous infusion with 2x10E6 T-cells/kg
Overall Study
Study termination by sponsor
12
Overall Study
Death
24
Overall Study
Relapse
1
Overall Study
Lost to Follow-up
1

Baseline Characteristics

Efficacy and Safety of a Donor Lymphocyte Preparation Depleted of Functional Host Alloreactive T-cells (ATIR) in Patients Undergoing a Peripheral Blood Stem Cell Transplant From a Related, Haploidentical Donor

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
ATIR
n=40 Participants
Donor lymphocyte preparation depleted of host functional alloreactive T-cells: Single intravenous infusion with 2x10E6 T-cells/kg
Age, Continuous
45 years
n=5 Participants
Sex: Female, Male
Female
16 Participants
n=5 Participants
Sex: Female, Male
Male
24 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants
n=5 Participants
Race (NIH/OMB)
Asian
1 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
36 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
Hematologic malignancy
Acute lymphatic leukemia
5 Participants
n=5 Participants
Hematologic malignancy
Acute myeloid leukemia
22 Participants
n=5 Participants
Hematologic malignancy
Chronic myeloid leukemia
1 Participants
n=5 Participants
Hematologic malignancy
Myelodysplastic syndrome
3 Participants
n=5 Participants
Hematologic malignancy
Myeloproliferative syndrome
1 Participants
n=5 Participants
Hematologic malignancy
Other acute leukemia
2 Participants
n=5 Participants
Hematologic malignancy
Other leukemia
3 Participants
n=5 Participants
Hematologic malignancy
Plasma cell disorder
3 Participants
n=5 Participants
Donor HLA compatibility (HLA-A, -B, -DR)
Donor HLA compatibility (HLA-A, -B, -DR): 3/6
27 Participants
n=5 Participants
Donor HLA compatibility (HLA-A, -B, -DR)
Donor HLA compatibility (HLA-A, -B, -DR): 4/6
13 Participants
n=5 Participants

PRIMARY outcome

Timeframe: 6, 12 and 24 months after the transplantation

TRM is defined as death due to causes other than disease relapse or progression, or other causes which are unrelated to the transplantation procedure (e.g. accident, suicide)

Outcome measures

Outcome measures
Measure
ATIR
n=40 Participants
Donor lymphocyte preparation depleted of host functional alloreactive T-cells: Single intravenous infusion with 2x10E6 T-cells/kg
Transplant Related Mortality
TRM at 6 months post HSCT
33 Kaplan-Meier estimates (%)
Transplant Related Mortality
TRM at 24 months post HSCT
71 Kaplan-Meier estimates (%)
Transplant Related Mortality
TRM at 12 months post HSCT
56 Kaplan-Meier estimates (%)

SECONDARY outcome

Timeframe: Up to 24 months after the transplantation

GVHD was graded according to standard criteria as referred to in the reference module (Filipovich et al. 2005; Przepiorka et al. 1995).

Outcome measures

Outcome measures
Measure
ATIR
n=40 Participants
Donor lymphocyte preparation depleted of host functional alloreactive T-cells: Single intravenous infusion with 2x10E6 T-cells/kg
Incidence and Severity Graft-versus-host Disease (GVHD)
Grade II acute GVHD (moderate)
7.5 Percentage of participants
Incidence and Severity Graft-versus-host Disease (GVHD)
Grade III (moderate) or IV (severe) acute GVHD
12.5 Percentage of participants
Incidence and Severity Graft-versus-host Disease (GVHD)
Severe chronic GVHD
5 Percentage of participants

SECONDARY outcome

Timeframe: Up to 24 months after the transplantation

Population: Data were not collected, premature termination of study

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: Up to 24 months after the transplantation

Population: Data not collected, premature termination of study

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: Up to 24 months after the transplantation

Population: Data were not collected, premature termination of study

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: Up to 24 months after the transplantation

Population: Data were not collected, premature termination of study

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: 6, 12, and 24 months after the transplantation

Outcome measures

Outcome measures
Measure
ATIR
n=40 Participants
Donor lymphocyte preparation depleted of host functional alloreactive T-cells: Single intravenous infusion with 2x10E6 T-cells/kg
Overall Survival
OS 6 months after the HSCT
65 Kaplan-Meier estimates (%)
Overall Survival
OS 12 months after the HSCT
33 Kaplan-Meier estimates (%)
Overall Survival
OS 24 months after the HSCT
22 Kaplan-Meier estimates (%)

Adverse Events

ATIR

Serious events: 9 serious events
Other events: 15 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
ATIR
n=40 participants at risk
Donor lymphocyte preparation depleted of host functional alloreactive T-cells: Single intravenous infusion with 2x10E6 T-cells/kg
Immune system disorders
Acute graft versus host disease
7.5%
3/40
Immune system disorders
Chronic graft versus host disease
2.5%
1/40
Infections and infestations
Bacterial sepsis
2.5%
1/40
Infections and infestations
Encephalitis
2.5%
1/40
Infections and infestations
JC virus infection
2.5%
1/40
Infections and infestations
Urinary tract infection
2.5%
1/40
Infections and infestations
Viral infection
2.5%
1/40
Gastrointestinal disorders
Abdominal pain
2.5%
1/40
Gastrointestinal disorders
Ascites
2.5%
1/40
Gastrointestinal disorders
Diarrhoea
2.5%
1/40
Gastrointestinal disorders
Nausea
2.5%
1/40
Hepatobiliary disorders
Hepatitis failure
2.5%
1/40
Hepatobiliary disorders
Hepatitis toxic
2.5%
1/40
Blood and lymphatic system disorders
Febrile neutropenia
2.5%
1/40
General disorders
Pain
2.5%
1/40
General disorders
Pyrexia
2.5%
1/40
Skin and subcutaneous tissue disorders
Rash
2.5%
1/40
Respiratory, thoracic and mediastinal disorders
Dyspnoea
2.5%
1/40

Other adverse events

Other adverse events
Measure
ATIR
n=40 participants at risk
Donor lymphocyte preparation depleted of host functional alloreactive T-cells: Single intravenous infusion with 2x10E6 T-cells/kg
Immune system disorders
Acute graft versus host disease
10.0%
4/40
Infections and infestations
Cytomegalovirus infection
5.0%
2/40
Gastrointestinal disorders
abdominal pain
5.0%
2/40
Gastrointestinal disorders
Diarrhoea
10.0%
4/40
Gastrointestinal disorders
Vomiting
7.5%
3/40
Gastrointestinal disorders
Nausea
7.5%
3/40
Gastrointestinal disorders
Dry mouth
5.0%
2/40

Additional Information

Andrew Sandler, MD / Chief Medical Officer

Kiadis Pharma Netherlands B.V.

Phone: +1 206 779 9213

Results disclosure agreements

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