A Phase 1/3 Study of T-Cell Receptor Engineered Donor T Cells in Subjects Undergoing Allogeneic Peripheral Blood Stem Cell Transplantation (ALLOHA-2)

ConditionsAMLMDS
Trial statusRecruiting
Trial phasePhase 1
Trial typeInterventional
Biological sexAll
Age18+
SponsorTScan Therapeutics, Inc.

About this trial

This is a multi-center, non-randomized, concurrent controlled, multi-arm, Phase 1 interventional, open-label, biologic assignment-based umbrella study evaluating the feasibility, safety and preliminary efficacy of an escalating dose regimen of up to 2 doses of TSC-100 and TSC-101 in patients with AML, MDS, or ALL following HCT from a haploidentical donor, MMUD, or MUD

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Male or female aged ≥ 18 years at the time of signing the informed consent.

Eastern Cooperative Oncology Group (ECOG)-PS ≤ 2 at the time of the screening visit.

Contraceptive use by male and female participants must be consistent with local regulations regarding the methods of contraception for those participating in clinical studies.

A male participant must agree to use a highly effective contraceptive as detailed in Appendix 4 of this protocol during the intervention period and for at least 12 months after the last dose of study intervention and refrain from donating sperm during this period.

Disqualifiers

None

Trial design

Design model

Parallel

Treatments tested in this trial

  • SOC + TSC-101

    Drug

    HA-2 positive or HA-1 negative

  • Control

    Other intervention

    SOC alone

  • SOC + TSC-100

    Drug

    HA-1 positive

Treatment groups

310 Participants
are divided into 3 treatment groups
Group A: Treatment Arm (TSC-100)Experimental treatment 1 intervention
Group B: Treatment Arm (TSC-101)Experimental treatment 1 intervention
Group C: Control Arm (Standard of Care)Active comparator 1 intervention

Trial outcomes

Primary outcomes

1

Occurrence of dose limiting toxicities

Number of DLTs observed in patients compared to the control arm

Time frame
2 years
2

Occurrence of adverse events

Number of adverse events in patients compared to control arm

Time frame
2 years

Secondary outcomes

1

Comparison of disease free survival in patients versus the control arm

Disease-free survival in patients versus the control arm at 6 months, defined as the time from date of transplant to death or relapse/progression, whichever comes first. Participants alive and disease free will be censored at the last follow-up.

Time frame
6 months
2

Comparison of disease free survival in patients versus the control arm

Disease-free survival in patients versus the control arm at 12 months, defined as the time from date of transplant to death or relapse/progression, whichever comes first. Participants alive and disease free will be censored at the last follow-up.

Time frame
12 months
3

Disease-free survival in patients versus the control arm at 18 months, defined as the time from date of transplant to death or relapse/progression, whichever comes first. Participants alive and disease free will be censored at the last follow-up.

Disease-free survival at Month 18 defined as the time from date of transplant to death or relapse/progression, whichever comes first. Participants alive and disease free will be censored at the last follow-up.

Time frame
18 months
4

Comparison of disease free survival in patients versus the control arm

Disease-free survival in patients versus the control arm at 24 months, defined as the time from date of transplant to death or relapse/progression, whichever comes first. Participants alive and disease free will be censored at the last follow-up.

Time frame
24 months

Other outcomes

1

Analysis of donor chimerism

Analysis of donor hematopoietic chimerism evaluated in bone marrow, whole unfractionated blood, or blood cell fractions, including CD3 and CD33 subsets.

Time frame
60 days
2

Analysis of donor chimerism

Analysis of donor hematopoietic chimerism evaluated in bone marrow, whole unfractionated blood, or blood cell fractions, including CD3 and CD33 subsets.

Time frame
100 days
3

Analysis of MRD

MRD status in bone marrow biopsies at Day 60

Time frame
60 days
4

Analysis of MRD

MRD status in bone marrow biopsies at Day 100

Time frame
100 days

Sponsors and contacts

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