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A Phase 1 Study of ADI-001 in B Cell Malignancies

A Phase 1 Safety and Efficacy Study of ADI-001 Anti-CD20 CAR-engineered Allogeneic Gamma Delta (γδ) T Cells in Adults With B Cell Malignancies

Status
Terminated
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04735471
Acronym
GLEAN-1
Enrollment
34
Registered
2021-02-03
Start date
2021-03-04
Completion date
2025-02-03
Last updated
2025-06-18

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

Conditions

Diffuse Large B Cell Lymphoma, Lymphoma, Follicular, Lymphoma, Mantle-Cell, Lymphoma, Non-Hodgkin, Marginal Zone Lymphoma, Primary Mediastinal B-cell Lymphoma

Keywords

B-cell lymphoma, CAR-T, Cell Therapy, Allogeneic Cell Therapy, T cells, gamma delta, Immunotherapy, Adoptive, Antigens, CD20

Brief summary

This is a Phase 1 dose escalation study following a 3+3 study design. The purpose of this study is to evaluate the safety and efficacy of ADI-001 in patients with B cell malignancies.

Detailed description

ADI-001 is an investigational immunotherapy composed of allogeneic gamma delta T cells that is being evaluated as a potential treatment for patients diagnosed with B cell malignancies who have relapsed or are refractory to at least two prior regimens. This first-in-human study will assess the safety and tolerability of ADI-001 and is designed to determine the maximum tolerated dose (MTD) or maximum assessed dose (MAD). Patients will be administered a single infusion or multiple infusions of ADI-001 cells. The study will include the following two parts: Part 1 : dose escalation and extension. Parts 1a (escalation) and 1b (extension) will involve escalation and administration of single dose of ADI-001 and multiple doses of ADI-001. Part 2 : dose expansion will involve dose administration of ADI-001 at MTD/MAD as determined in Part 1. The study will also assess the pharmacokinetics and pharmacodynamics of ADI-001.

Interventions

GENETICADI-001

Anti-CD20 CAR-T

DRUGFludarabine

Chemotherapy for Lymphodepletion

DRUGCyclophosphamide

Chemotherapy for Lymphodepletion

Sponsors

Adicet Therapeutics
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

3+3 Dose Escalation Design

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Relapsed/refractory (R/R) previously treated B cell malignancies. 2. Prior treatment must include at least 2 prior regimens, including anti CD20 antibody therapies. Prior Treatment with CD19 CAR T may be considered. 3. Documented measurable disease as defined by Lugano 2014 4. Male or female ≥ 18 years of age 5. Eastern Cooperative Oncology Group (ECOG) Performance Status (PS) of 0 or 1 6. Adequate hematological, renal, pulmonary, cardiac, and liver function 7. Female patients who are not pregnant or breastfeeding 8. Female patients of childbearing potential and all male patients must agree to use highly effective methods of birth control for the duration of the study.

Exclusion criteria

1. Current or history of any of the following conditions: 1. Central nervous system (CNS) primary lymphoma (current or history) 2. Unrelated malignancy requiring systemic treatment (current or history \[in the past 3 years, other than hormonal treatment which is allowed\]) 2. Any of the following current conditions: 1. Active acute or chronic graft versus host disease (GvHD) other than grade 1 with skin involvement, or GvHD requiring immunosuppressive treatment within 4 weeks of enrollment 2. Any other acute or chronic medical or psychiatric condition that may increase the risk associated with study participation or investigational product administration 3. Tumor mass effects such as bowel obstruction or blood vessel compression that require therapy 4. Opportunistic infections 3. History of any clinically significant conditions in the opinion of the Investigator 4. Prior treatment with any of the following: a Gene therapy, genetically modified cell therapy, or adoptive T cell therapy within 6 weeks of study enrollment. b Radiation therapy within 4 weeks prior to study entry. Palliative local radiation may be allowed within 1 week prior to study entry. c Autologous stem cell transplant (SCT) within 6 weeks of planned ADI 001 infusion. d Allogeneic transplant and donor lymphocyte infusion within 3 months of planned CAR T cell infusion 5. Patients unwilling to participate in an extended safety monitoring period (long term follow up \[LTFU\] protocol)

Design outcomes

Primary

MeasureTime frameDescription
The Incidence of Subjects with Dose Limiting Toxicities within each dose level cohortDay 28This primary endpoint will be used to determine the Maximum Tolerated Dose (MTD) or Maximum Assessed dose (MAD).
Proportion of treatment emergent and treatment related adverse events1 yearThis primary endpoint will be used to determine the MTD/MAD of ADI-001

Secondary

MeasureTime frameDescription
Duration of ResponseDay 28, Month 3, 6, 9, and 12
Progression Free SurvivalDay 28, Month 3, 6, 9, and 12
Frequency and persistence of ADI-001Day 1 through Month 12Defined as duration from Day 1 to undetectable levels of ADI-001 cells per microliter blood
Overall SurvivalDay 28, Month 3, 6, 9, and 12
Time To ProgressionDay 28, Month 3, 6, 9, and 12
Overall Response Rate by Lugano CriteriaDay 28, Month 3, 6, 9, and 12

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 14, 2026