Phase 1 Study of ACTR087, Autologous T Lymphocytes Expressing Antibody Coupled T-cell Receptors (CD16V-41BB-CD3ζ), in Combination With Rituximab, in Subjects With Relapsed or Refractory CD20-Positive B-Cell Lymphoma
Overview
- Phase
- Phase 1
- Intervention
- Not specified
- Conditions
- Lymphoma
- Sponsor
- Cogent Biosciences, Inc.
- Enrollment
- 34
- Locations
- 7
- Primary Endpoint
- Safety as assessed by and adverse events, laboratory assessments and physical examinations
- Status
- Completed
- Last Updated
- 6 years ago
Overview
Brief Summary
This is a phase 1, multi-center, single-arm, open-label study evaluating the safety and efficacy of an autologous T-cell product expressing ACTR in combination with rituximab in subjects with refractory or relapsed CD20+ B-cell lymphoma.
Investigators
Eligibility Criteria
Inclusion Criteria
- •Signed written informed consent obtained prior to study procedures
- •Histologically-confirmed relapsed or refractory CD20+ B-cell lymphoma of one of the following types, with documented disease progression or recurrence following the immediate prior therapy:
- •DLBCL, regardless of cell of origin or underlying molecular genetics
- •Biopsy-confirmed CD20+ expression of the underlying malignancy by immunohistochemical staining or flow cytometry between the most recent dose of an anti-CD20 monoclonal antibody (mAb) and study enrollment
- •At least 1 measurable lesion on imaging. Lesions that have been previously irradiated will be considered measurable only if progression has been documented following completion of radiation therapy
- •Must have received adequate prior therapy for the underlying CD20+ B-cell lymphoma, defined as an anti-CD20 mAb in combination with an anthracycline-containing chemotherapy regimen (i.e. chemo-immunotherapy) and at least one of the following:
- •biopsy-proven refractory disease after frontline chemo-immunotherapy
- •relapse within 1 year from frontline chemo-immunotherapy and ineligible for autologous hematopoietic stem cell transplant (auto-HSCT)
- •For subjects with DLBCL, PMBCL, and Gr3b-FL: relapsed or refractory disease following at least 2 prior regimens or following an auto-HSCT
- •For subjects with TH-FL: relapsed or refractory disease following at least 2 prior regimens or following an auto-HSCT. At least 1 prior regimen with an anti-CD20 mAb in combination with chemotherapy is required following documented transformation
Exclusion Criteria
- •Known active central nervous system (CNS) involvement by malignancy. Subjects with prior CNS involvement with their lymphoma must have completed effective treatment of their CNS disease at least 3 months prior to enrollment with no evidence of disease clinically and at least stable findings on relevant CNS imaging
- •Prior treatment as follows:
- •alemtuzumab within 6 months of enrollment
- •fludarabine, cladribine, or clofarabine within 3 months of enrollment
- •external beam radiation within 2 weeks of enrollment
- •mAb (including rituximab) within 2 weeks of enrollment
- •other lymphotoxic chemotherapy (including steroids except as below) within 2 weeks of enrollment
- •experimental agents within 3 half-lives prior to enrollment, unless progression is documented on therapy
- •Serum creatinine ≥ 1.5 X age-adjusted upper limits of normal (ULN)
- •Pulse oximetry \< 92% on room air
Outcomes
Primary Outcomes
Safety as assessed by and adverse events, laboratory assessments and physical examinations
Time Frame: 24 months
Safety as assessed by determination of the recommended phase 2 dose (RP2D)
Time Frame: 24 months
Safety as assessed by dose limiting toxicities (DLTs)
Time Frame: 28 days
Safety as assessed by determination of the maximum tolerated dose (MTD)
Time Frame: 24 months
Safety as assessed by mini-mental state examination (MMSE)
Time Frame: 24 months
Secondary Outcomes
- Overall response rate(24 months)
- Duration of response(24 months)
- Overall survival(60 months)
- Progression free survival(24 months)