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Targeted Immunotherapy After Myeloablative TBI-Based Conditioning & AlloHCT in CAYA With High Risk T-Cell ALL & Lymphoma

Phase I Trial of Targeted Immunotherapy With Daratumumab Following Myeloablative TBI-Based Conditioning and AlloHCT in Children, Adolescents and Young Adults With High Risk T-Cell Acute Lymphoblastic Leukemia and Lymphoma (ALLO-T-DART)

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04972942
Acronym
ALLO-T-DART
Enrollment
30
Registered
2021-07-22
Start date
2023-05-22
Completion date
2028-09-01
Last updated
2026-09-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

T-cell Acute Lymphoblastic Leukemia, T-Cell Acute Lymphoblastic Lymphoma

Keywords

immunotherapy, children, adolescents, young adults

Brief summary

A Phase I trial to determine the safety of targeted immunotherapy with daratumumab (DARA) IV after total body irradiation (TBI)-based myeloablative conditioning and allogeneic hematopoietic cell transplantation (HCT) for children, adolescents, and young adults (CAYA) with high risk T-cell acute lymphoblastic leukemia (T-ALL) or T-cell lymphoblastic lymphoma (T-LLy). Pre- and post-HCT NGS-MRD studies will be correlated with outcomes in children, adolescents, and young adults with T-ALL undergoing allogeneic HCT and post-HCT DARA treatment. The study will also evaluate T-cell repertoire and immune reconstitution prior to and following DARA post-HCT treatment and correlate with patient outcomes.

Detailed description

Total body irradiation (TBI)-based myeloablative allogeneic hematopoietic stem cell transplantation (HCT) using best available donor. Daratumumab (DARA) treatment post-HCT: Phase 1: 3 dose levels to determine safety (15 patients) Dose expansion cohort (DEC): Further evaluation of PK and PD (correlative studies/exploratory endpoints) to guide future selection of RP2D (15 patients) Treatment Schedule: 1. Induction: DARA IV weekly x 8 doses (Weeks 1-8) 2. Consolidation: DARA IV every 2 weeks x 8 doses (Weeks 9-24) 3. Maintenance: DARA IV every 4 weeks (Stop at Day +270)

Interventions

DRUGDaratumumab

Total body irradiation (TBI)-based myeloablative allogeneic hematopoietic stem cell transplantation (HCT) using best available donor. Daratumumab (DARA) treatment post-HCT Phase 1: 3 dose levels to determine safety (15 patients) Dose expansion: 1. Induction: DARA IV weekly x 8 doses (Weeks 1-8) 2. Consolidation: DARA every 2 weeks x 8 doses (Weeks 9-24) 3. Maintenance: DARA every 4 weeks (Stop at Day +270)

Sponsors

New York Medical College
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Phase 1: 3 dose levels to determine safety. Followed by dose expansion cohort.

Eligibility

Sex/Gender
ALL
Age
No minimum to 39 Years
Healthy volunteers
No

Inclusion criteria

* 0-39yrs * T-cell ALL in second or subsequent remission (≤ 5% blasts) or relapsed T-cell LLy with complete response after re-induction therapy (including secondary malignancy) * Planned allogeneic stem cell transplantation with donor identified * Performance status ≥ 60% * Fully recovered from the acute toxic effects of all prior chemotherapy, immunotherapy, or radiotherapy prior to entering this study * Meet organ function requirements * Signed IRB approved informed consent

Exclusion criteria

* May not have had a prior autologous or allogenic stem cell transplant * May not have uncontrolled, systemic infection at the time of enrollment * Known allergies, hypersensitivity, or intolerance to mannitol, sorbitol, corticosteroids, monoclonal antibodies or human proteins, or their excipients * Must not be pregnant or actively breast feeding * Seropositive for HIV, hepatitis B or hepatitis C * COPD * Asthma * Clinically significant cardiac disease

Design outcomes

Primary

MeasureTime frameDescription
Patients with dose limiting toxicity (per CTCAE v.5)60 daysoccurrence of any Grade ≥ 3 non hematologic toxicity (per CTCAE v.5) which is probably, or definitely related to daratumumab

Secondary

MeasureTime frameDescription
Relapse free survival1 yearTo measure relapse free survival in patients post HCT and daratumumab

Countries

United States

Contacts

CONTACTLauren Harrison, RN, MSN
lauren_harrison@nymc.edu6172857844
CONTACTErin Morris, RN
erin_morris@nymc.edu7149645359
STUDY_CHAIRMitchell Cairo, MD

New York Medical College

STUDY_CHAIRTroy Quigg, DO

Helen DeVos Children's Hospital

STUDY_CHAIRAllyson Flower, MD

New York Medical College

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 12, 2026