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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT05642455
Other study ID # ADP-0044-004
Secondary ID
Status Recruiting
Phase Phase 1/Phase 2
First received
Last updated
Start date September 1, 2023
Est. completion date July 30, 2038

Study information

Verified date April 2024
Source Adaptimmune
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This is a pediatric basket study to investigate the safety and efficacy of afamitresgene autoleucel in HLA-A*02 eligible and MAGE-A4 positive subjects aged 2-21 years of age with advanced cancers


Recruitment information / eligibility

Status Recruiting
Enrollment 20
Est. completion date July 30, 2038
Est. primary completion date October 1, 2026
Accepts healthy volunteers No
Gender All
Age group 2 Years to 21 Years
Eligibility Inclusion Criteria: - Age 2-21 years - Body weight = 10 kg - Subject has histologically confirmed diagnosis of any one of the following cancers: (A) Synovial Sarcoma, (B) MPNST, (C) Neuroblastoma, or (D) Osteosarcoma - Must have previously received a systemic chemotherapy - Measurable disease according to RECIST v1.1 (or INCR, 2017 Neuroblastoma only). - HLA-A*02 positive - Tumor shows MAGE-A4 expression confirmed by central laboratory. - Performance Status: ECOG 0-1 or Lansky Score = 80 Exclusion Criteria: - HLA-A*02:05 in either allele; or any A*02 having same protein sequence as HLA-A*02:05 - History of allergic reactions attributed to compounds of similar chemical or biologic composition to fludarabine, cyclophosphamide. - History of autoimmune or immune mediated disease - Known central nervous system (CNS) metastases. - Other prior malignancy that is not considered by the Investigator to be in complete remission - Clinically significant cardiovascular disease - Active infection with human immunodeficiency virus, hepatitis B virus, hepatitis C virus, or human T cell leukemia virus - Pregnant or breastfeeding

Study Design


Related Conditions & MeSH terms


Intervention

Genetic:
Afamitresgene autoleucel
Single infusion of afamitresgene autoleucel Dose: For subjects =10 kg to <40 kg: starting dose of 0.025 - 0.200 x 10'9 transduced cells/kg. For subjects =40 kg 1.0x109 to 10x109 transduced by a single intravenous infusion

Locations

Country Name City State
United States University of Colorado Aurora Colorado
United States National Institue of Health Bethesda Maryland
United States Dana Farber Cancer Institute Boston Massachusetts
United States Cincinnati Children's Hospital Medical Center Cincinnati Ohio
United States Duke University School of Medicine Durham North Carolina
United States University of Wisconsin Cancer Center Madison Wisconsin
United States Memorial Sloan Kettering Kids New York New York
United States Stanford University Palo Alto California
United States Children's Hospital of Philedephia Philadelphia Pennsylvania
United States Washington University Saint Louis Missouri
United States Seattle Children's Hospital Seattle Washington

Sponsors (1)

Lead Sponsor Collaborator
Adaptimmune

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary Incidence, duration, and severity of Treatment Emergent Adverse Events as assessed by Investigator Evaluation. Determination of incidence, severity and duration of adverse events
Incidence of dose limiting toxicities DLTs
AEs including serious adverse events (SAEs)
Incidence, severity, and duration of the AEs of special interest
Replication competent lentivirus (RCL)
T-cell clonality and insertional oncogenesis (IO)
3.5 years
Secondary Efficacy: Objective response rate (ORR) assessed by investigator per Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 (or by International Neuroblastoma Response Criteria [INRC] 2017 in NB subjects) ORR is defined as incidence of complete responses or partial responses as assessed by RECIST v1.1 or INRC, 2017 3.5 years
Secondary Time to response (TTR) For patients who are observed to respond to afamitresgene autoleucel in the time from date of infusion to achieve a partial response or complete response (TTR) is assessed 3.5 years
Secondary Duration of Response (DoR) For patients who are observed to respond to afamitresgene autoleucel the DoR is the date of initial response (including confirmation) from date of infusion up until disease progression 3.5 years
Secondary Best overall response (BOR) BOR is assessed by the investigator per RECIST V1.1 or INCR, 2017 (for NB subjects) 3.5 years
Secondary Progression Free Survival (PFS) PFS is assessed by the investigator from date of infusion of ADP-A2M4 up until the date of disease progression per RECIST v1.1 or INCR, 2017 (for NB subjects) or death. 3.5 years
Secondary Overall Survival (OS) OS is assessed from date of infusion of ADP-A2M4 up until the date of patient death. 15 years
Secondary Pharmacokinetics (PK). Characterize the in vivo cellular pharmacokinetics (PK) profile of afamitresgene autoleucel by evaluation of PBMC samples for peak persistence. Obtain PBMC samples for the evaluation of peak persistence of afamitresgene autoleucel. 3.5 years
Secondary Development and validation of an invitro diagnostic (IVD) assay for the screening of tumor antigen expression for regulatory approval. Retention of additional tumor tissue during Pre-Screening to enable development and validation of the MAGE-A4 antigen expression companion diagnostic (CDx) assay. 3.5 years
Secondary Invitro diagnostic (IVD) assay for screening Development and validation of the MAGE-A4 antigen expression companion diagnostic assay 3.5 years
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