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Safety and Efficacy of ALLO-501 Anti-CD19 Allogeneic CAR T Cells in Adults With Relapsed/Refractory Large B Cell or Follicular Lymphoma (ALPHA)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT03939026
Recruitment Status : Active, not recruiting
First Posted : May 6, 2019
Last Update Posted : May 26, 2022
Information provided by (Responsible Party):
Allogene Therapeutics

Brief Summary:
The purpose of the ALPHA study is to assess the safety, efficacy, cell kinetics and immunogenicity of ALLO-501 in adults with relapsed or refractory large B-cell lymphoma or follicular lymphoma after a lymphodepletion regimen comprising fludarabine, cyclophosphamide, and ALLO-647.

Condition or disease Intervention/treatment Phase
Relapsed/Refractory Large B Cell Lymphoma Relapsed/Refractory Follicular Lymphoma Genetic: ALLO-501 Biological: ALLO-647 Drug: Fludarabine Drug: Cyclophosphamide Phase 1

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 74 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: A Single-Arm, Open-Label, Phase 1 Study Evaluating the Safety, Efficacy, and Cellular Kinetics/Pharmacodynamics of ALLO-501, an Anti-CD19 Allogeneic CAR T Cell Therapy, And ALLO-647, An Anti-CD52 Monoclonal Antibody, in Patients With Relapsed/Refractory Large B-Cell Lymphoma or Follicular Lymphoma
Actual Study Start Date : May 1, 2019
Estimated Primary Completion Date : December 2022
Estimated Study Completion Date : August 2026

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Lymphoma

Arm Intervention/treatment
Experimental: ALLO-647, ALLO-501 Genetic: ALLO-501
ALLO-501 is an allogeneic CAR T cell therapy targeting CD19

Biological: ALLO-647
ALLO-647 is a monoclonal antibody that recognizes a CD52 antigen

Drug: Fludarabine
Chemotherapy for lymphodepletion

Drug: Cyclophosphamide
Chemotherapy for lymphodepletion

Primary Outcome Measures :
  1. Proportion of subjects experiencing Dose Limiting Toxicities at increasing doses of ALLO-501 [ Time Frame: 28 days ]
    Dose limiting toxicity is defined as protocol-defined ALLO-501-related adverse events with onset within 28 days following infusion

  2. Proportion of patients experiencing Dose Limiting Toxicity with ALLO-647 in combination with fludarabine/cyclophosphamide administered prior to ALLO-501 [ Time Frame: 33 days ]
    Dose-limiting toxicity is defined as protocol-defined ALLO-647-related adverse events with onset within 33 days following 1st infusion

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Histological or cytological diagnosis of Large B-cell Lymphoma (LBCL) or Follicular Lymphoma.
  • Relapse or refractory disease after at least 2 lines of chemotherapy
  • At least 1 measurable lesion at time of screening.
  • Eastern Cooperative Oncology Group Performance Status of 0 or 1.
  • Adequate hematological, renal, liver, pulmonary, and cardiac functions.

Exclusion Criteria:

  • Current or history of central nervous system (CNS) lymphoma.
  • Clinically significant CNS dysfunction.
  • ASCT within last 6 weeks or allogeneic HSCT within last 3 months prior to ALLO-647.
  • Prior treatment with anti-CD19 therapy, any gene therapy, any genetically modified cell therapy or adoptive T cell therapy
  • Systemic anticancer therapy within 2 weeks prior to study entry.
  • On-going treatment with immunosuppressive agents.
  • Active acute or chronic graft versus host disease (GvHD), or GvHD requiring immunosuppressive treatment within 4 weeks of enrollment.
  • Any form of primary or acquired immunodeficiency (e.g., severe combined immunodeficiency disease).
  • Current thyroid disorder (including hyperthyroidism), except for subjects with hypothyroidism controlled on a stable dose of hormone replacement therapy.
  • Patients unwilling to participate in an extended safety monitoring period

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT03939026

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United States, Arizona
Banner MD Anderson Cancer Center
Gilbert, Arizona, United States, 85234
United States, California
University of California, Los Angeles
Los Angeles, California, United States, 90095
Stanford University
Stanford, California, United States, 94305
United States, Colorado
Colorado Blood Cancer Institute
Denver, Colorado, United States, 80218
United States, Florida
Moffitt Cancer Center
Tampa, Florida, United States, 33612
United States, Kentucky
Norton Cancer Institute
Louisville, Kentucky, United States, 40207
United States, Texas
St. Davids South Austin Medical Center
Austin, Texas, United States, 78704
MD Anderson
Houston, Texas, United States, 77030
Sponsors and Collaborators
Allogene Therapeutics
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Responsible Party: Allogene Therapeutics Identifier: NCT03939026    
Other Study ID Numbers: ALLO-501-201
First Posted: May 6, 2019    Key Record Dates
Last Update Posted: May 26, 2022
Last Verified: May 2022

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Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
Keywords provided by Allogene Therapeutics:
Cell Therapy
Allogeneic Cell Therapy
Cellular Immuno-therapy
Follicular Lymphoma
Large B-Cell Lymphoma
Additional relevant MeSH terms:
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Lymphoma, Follicular
Lymphoma, B-Cell
Neoplasms by Histologic Type
Lymphoproliferative Disorders
Lymphatic Diseases
Immunoproliferative Disorders
Immune System Diseases
Lymphoma, Non-Hodgkin
Immunosuppressive Agents
Immunologic Factors
Physiological Effects of Drugs
Antirheumatic Agents
Antineoplastic Agents, Alkylating
Alkylating Agents
Molecular Mechanisms of Pharmacological Action
Antineoplastic Agents
Myeloablative Agonists