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A Phase 2b, Open-label, Multicenter, Randomized Parallel-Group, Two-Stage, Study of an Immunotherapeutic Treatment DPX-Survivac and Pembrolizumab, With and Without Intermittent Low-Dose Cyclophosphamide, in Subjects With Relapsed/Refractory Diffuse Large B-Cell Lymphoma (VITALIZE)


Description

This is a Phase 2b, randomized, open label study to assess the safety and efficacy of DPX-Survivac and pembrolizumab, with and without low-dose cyclophosphamide (CPA) in subjects with relapsed or refractory DLBCL.This is a Phase 2b, randomized, open label study to assess the safety and efficacy of DPX-Survivac and pembrolizumab, with and without low-dose cyclophosphamide (CPA) in subjects with relapsed or refractory DLBCL. The study will enroll up to 102 subjects. Eligible subjects will be randomized (1:1) to receive: * Arm 1: DPX-Survivac, pembrolizumab and intermittent, low-dose CPA; or, * Arm 2: DPX-Survivac and pembrolizumab All subjects will receive two 0.5 mL doses of DPX-Survivac 3 weeks apart on day 7 (D7) and D28 followed by up to twelve 0.1 mL doses of DPX-Survivac, 8 weeks apart (Q8W). All subjects will receive pembrolizumab intravenously (IV) at a flat dose of 200 mg starting at D7 and on day 1 of each 3-week cycle thereafter (i.e., D28, D49, D70 etc.) (Q3W). For subje

Trial Eligibility

Key Inclusion Criteria: * Adults ≥ 18 years of age who are willing and able to provide written informed consent * Have an ECOG performance status of ≤ 1. Subjects with an ECOG performance status of 2 may be enrolled with Medical Monitor approval. * Pathologically confirmed diagnosis of DLBCL, as defined by the 2016 World Health Organization classification including DLBCL NOS high-grade B-cell lymphoma with MYC and BCL2 and/or BCL6 rearrangements, Epstein-barr virus (EBV) positive DLBCL, and T cell rich B cell lymphoma (TCRBCL). Subjects with DLBCL transformed from indolent lymphoma (except for Richter's transformation) are eligible. * Subjects must have progressive disease following at least two (2) lines of prior systemic therapy for DLBCL; prior treatment must have included an anthracycline and rituximab (or another CD20-targeted agent). * Subjects must have failed or be ineligible for ASCT or CAR-T * Have at least one bi-dimensionally measurable lesion per Lugano (2014) * Willing to provide pre-treatment and on-treatment tumor biopsy tissue. * Meet protocol-specified laboratory requirements * Life expectancy \> 3 months. Key Exclusion Criteria: * Primary CNS lymphoma or active secondary CNS involvement and/or lymphomatous meningitis * Chemotherapy, immunotherapy, major surgery, or investigational agent treatment within 28 days of D0 or 5 half-lives, whichever is shorter * Radiotherapy within 14 days of day 0 * Autologous stem cell transplant (ASCT) within ˂100 days prior to D0 * Chimeric antigen receptor T cell (CAR-T) therapy within ˂28 days prior to D0 * Diagnosis of immunodeficiency disorder or history of active autoimmune disease that has required systemic treatment in the past 2 years * Uncontrolled significant active infections (controlled Hepatitis B, Hepatitis C, or HIV may be eligible) * Prior history of malignancy other than eligible lymphoma sub-types, unless the subject has been free of the disease for ≥ 2 years prior to the start of study treatment

Study Info

Organization

ImmunoVaccine Technologies, Inc. (IMV Inc.)


Primary Outcome

Objective response rate (ORR) in each of the study arms


Outcome Timeframe Approximately 24 months

NCTID NCT04920617

Phases PHASE2

Primary Purpose TREATMENT

Start Date 2021-06-18

Completion Date 2024-10

Enrollment Target 102

Interventions

DRUG DPX-Survivac

DRUG Pembrolizumab

DRUG CPA

Locations Recruiting

Compassionate Cancer Care Medical Group

United States, California, Fountain Valley


Boca Raton Regional Hospital

United States, Florida, Boca Raton


BRCR Medical Center Inc.

United States, Florida, Hollywood


BRCR Medical Center Inc.

United States, Florida, Plantation


Comprehensive Hematology and Oncology

United States, Florida, Saint Petersburg


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