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A Safety and Efficacy Study Evaluating CTX110 in Subjects With Relapsed or Refractory B-Cell Malignancies (CARBON)

Phase 1
Terminated
Conditions
Non-Hodgkin Lymphoma
B-cell Lymphoma
Adult B Cell ALL
B-cell Malignancy
Interventions
Registration Number
NCT04035434
Lead Sponsor
CRISPR Therapeutics AG
Brief Summary

This is an open-label, multicenter, Phase 1/2 study evaluating the safety and efficacy of CTX110 in subjects with relapsed or refractory B-cell malignancies.

Detailed Description

The study may enroll up to 227 subjects in total. CTX110 is a CD19-directed chimeric antigen receptor (CAR) T cell immunotherapy comprised of allogeneic T cells prepared for the treatment of B cell malignancies. The cells are from healthy adult volunteer donors that are genetically modified ex vivo using CRISPR-Cas9 (clustered regularly interspaced short palindromic repeats/ CRISPR-associated protein 9) gene editing components (single guide RNA and Cas9 nuclease).

Recruitment & Eligibility

Status
TERMINATED
Sex
All
Target Recruitment
62
Inclusion Criteria
  1. For NHL patients: Age β‰₯18 years. For B cell ALL patients: age β‰₯18 years to ≀70 years
  2. Refractory or relapsed non-Hodgkin lymphoma, as evidenced by 2 or more lines of prior therapy, or histologically confirmed B cell ALL, refractory or relapsed.
  3. Eastern Cooperative Oncology Group performance status 0 or 1.
  4. Adequate renal, liver, cardiac and pulmonary organ function
  5. Female subjects of childbearing potential and male subjects must agree to use acceptable method(s) of contraception from enrollment through at least 12 months after CTX110 infusion.

Key

Exclusion Criteria
  1. For NHL patients: prior allogeneic HSCT. For B cell ALL patients: prior allogeneic HSCT within 6 months, and/or any evidence of GvHD.
  2. History of central nervous system (CNS) involvement by malignancy
  3. History of a seizure disorder, cerebrovascular ischemia/hemorrhage, dementia, cerebellar disease, or any autoimmune disease with CNS involvement.
  4. Presence of bacterial, viral, or fungal infection that is uncontrolled.
  5. Positive for HIV, or active hepatitis B virus or hepatitis C virus infection.
  6. Previous or concurrent malignancy, except basal cell or squamous cell skin carcinoma, adequately resected and in situ carcinoma of cervix, or a previous malignancy that was completely resected and has been in remission for β‰₯5 years.
  7. For NHL patients: Use of systemic anti-tumor therapy or investigational agent within 14 days or 5 half-lives, whichever is longer, of CTX110 infusion. For B cell ALL patients: Use of systemic antitumor therapy within 7 days of CTX110 infusion.
  8. Primary immunodeficiency disorder or active autoimmune disease requiring steroids and/or other immunosuppressive therapy.
  9. Women who are pregnant or breastfeeding.

Study & Design

Study Type
INTERVENTIONAL
Study Design
SEQUENTIAL
Arm && Interventions
GroupInterventionDescription
CTX110CTX110Administered by IV infusion following lymphodepleting chemotherapy.
Primary Outcome Measures
NameTimeMethod
Phase 1 Part A (Dose Escalation), for all cohorts: Incidence of adverse events, defined as dose-limiting toxicitiesFrom CTX110 infusion up to 28 days post-infusion
Phase 1 Part B (Cohort Expansion) and Phase 2: Objective response rateFrom CTX110 infusion up to 60 months post-infusion
Secondary Outcome Measures
NameTimeMethod
Progression Free Survival (PFS)From date of first CTX110 infusion until date of first disease progression or death due to any cause, assessed up to 60 months
Duration of ResponseFrom date of first objective response until date of disease progression or death due to any cause, assessed up to 60 months

Duration of Response (DOR) for subjects with objective response events

Duration of Clinical Benefit (DOCB)From date of first objective response until date of last disease progression or death, assessed up to 60 months
Treatment-Failure-Free Survival (TFFS)From date of first CTX110 infusion until date of last disease progression or death due to any cause, assessed up to 60 months
Overall Survival (OS)From date of first CTX110 infusion until date of death due to any cause, assessed up to 60 months
Objective Response Rate (for B cell ALL)From CTX110 infusion up to 60 months post-infusion

For B cell ALL, objective response rate (ORR) (complete remission + complete remission with incomplete blood count recovery) will be assessed.

Trial Locations

Locations (33)

University of Maryland

πŸ‡ΊπŸ‡Έ

Baltimore, Maryland, United States

Harold C. Simmons Comprehensive Cancer Center, UT Southwestern Medical Center

πŸ‡ΊπŸ‡Έ

Dallas, Texas, United States

Royal Prince Alfred Hospital

πŸ‡¦πŸ‡Ί

Sydney, New South Wales, Australia

Emory University Winship Cancer Institute

πŸ‡ΊπŸ‡Έ

Atlanta, Georgia, United States

Washington University

πŸ‡ΊπŸ‡Έ

Saint Louis, Missouri, United States

University of Hamburg

πŸ‡©πŸ‡ͺ

Hamburg, Germany

Mayo Clinic

πŸ‡ΊπŸ‡Έ

Jacksonville, Florida, United States

University of Minnesota

πŸ‡ΊπŸ‡Έ

Minneapolis, Minnesota, United States

Weill Cornell Medical College / New York Presbyterian Hospital

πŸ‡ΊπŸ‡Έ

New York, New York, United States

Oregon Health and Science University

πŸ‡ΊπŸ‡Έ

Portland, Oregon, United States

Roswell Park Cancer Insitute

πŸ‡ΊπŸ‡Έ

Buffalo, New York, United States

University of Chicago

πŸ‡ΊπŸ‡Έ

Chicago, Illinois, United States

Beth Israel Deaconess Medical Center

πŸ‡ΊπŸ‡Έ

Boston, Massachusetts, United States

Cedars Sinai

πŸ‡ΊπŸ‡Έ

Los Angeles, California, United States

UCSF Medical Center

πŸ‡ΊπŸ‡Έ

San Francisco, California, United States

University of Kansas

πŸ‡ΊπŸ‡Έ

Westwood, Kansas, United States

Markey Cancer Center, University of Kentucky

πŸ‡ΊπŸ‡Έ

Lexington, Kentucky, United States

Fox Chase Cancer Center

πŸ‡ΊπŸ‡Έ

Philadelphia, Pennsylvania, United States

Sarah Cannon Research Institute

πŸ‡ΊπŸ‡Έ

Nashville, Tennessee, United States

Duke University

πŸ‡ΊπŸ‡Έ

Durham, North Carolina, United States

Texas Transplant Institute

πŸ‡ΊπŸ‡Έ

San Antonio, Texas, United States

Virginia Commonwealth University Massey Cancer Center

πŸ‡ΊπŸ‡Έ

Richmond, Virginia, United States

Peter MacCallum Cancer Centre

πŸ‡¦πŸ‡Ί

Melbourne, Victoria, Australia

Sir Charles Gairdner Hospital

πŸ‡¦πŸ‡Ί

Nedlands, Western Australia, Australia

Princess Margaret Cancer Centre

πŸ‡¨πŸ‡¦

Toronto, Ontario, Canada

CHU de Lille

πŸ‡«πŸ‡·

Lille, France

HΓ΄pital Saint Antoine

πŸ‡«πŸ‡·

Paris, France

University Hospital WΓΌrzburg

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WΓΌrzburg, Germany

Hospital Universitario de Salamanca

πŸ‡ͺπŸ‡Έ

Salamanca, Spain

Hospital ClΓ­nic de Barcelona

πŸ‡ͺπŸ‡Έ

Barcelona, Spain

Swedish Cancer Institute

πŸ‡ΊπŸ‡Έ

Seattle, Washington, United States

Institut Paoli-Calmettes

πŸ‡«πŸ‡·

Marseille, France

Clinica Universidad de Navarra

πŸ‡ͺπŸ‡Έ

Pamplona, Navarra, Spain

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