A Long-Term Safety Follow-Up Study for Patients Treat With WU-CART-007

Study Overview
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Brief Summary
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This study will provide long-term follow-up for patients who have received treatment with WU-CART-007 in a previous clinical trial. In this study, patients will be followed for up to 15 years after their last dose of WU-CART-007 for evaluation of delayed adverse events, presence of persisting WU-CART-007 vector sequences, and overall survival and progression-free survival.

Detailed Description
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This long-term follow-up (LTFU) study is designed to follow patients for up to 15 years after WU-CART-007 infusion to evaluate the persistence of the WU-CART-007 cell clones and to explore any unanticipated genetic consequences secondary to the introduction of genetically modified cells. Long-term toxicity, subsequent anti-cancer therapy, and survival status will be monitored. Patients will transition to this LTFU study when they meet the criteria for discontinuation from the main study or after completing 24 months of follow-up in the main study. Patients will be contacted every 6 months for the first 5 years following WU-CART-007 administration and then yearly, for up to 10 years, for a total of 15 years of follow-up after prior WU-CART-007 treatment or until death, whichever occurs first. Patients will be evaluated either at the treating site or by the patient's primary Health Care Provider (HCP). Patients will be required to allow key sponsor contacts to continue to access medical records so that information related to their health condition and initial treatment response may be obtained.

Official Title
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A Long-Term Safety Follow-Up Study for Patients Treated With Anti-CD7 Allogeneic CAR-T Cells (WU-CART-007)

Conditions
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T-cell Acute Lymphoblastic Leukemia, T-cell Lymphoblastic Lymphoma

Intervention / Treatment
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* Genetic: Genetic: WU-CART-007


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patients that received WU-CART-007 in the context of any investigational study will be eligible to participate in this long-term follow-up study. Exclusion Criteria: Not Applicable

Ages Eligible for Study
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Minimum Age: 12 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Patients treated with WU-CART-007<br>Patients who received previous treatment with WU-CART-007 | Genetic: Genetic: WU-CART-007<br>* No study drug is administered in this study. Patients who have received WU-CART-007 will be enrolled in this study for Long Term Safety and Efficacy<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Delayed adverse events (AEs)/serious adverse events (SAEs) | assess the risk of delayed adverse events including serious events following exposure to WU-CART-007 | up to 15 years | 
| Persistence of WU-CART-007 cells | Peripheral blood samples will be monitored used polymerase chain reaction for persistence of WU-CART-007 cells | Every 6 months for up to 5 years and then yearly for up to 15 years | 
| Tanner Staging | Tanner Staging will be used to evaluate growth and development outcomes and sexual maturity status for patients who were < 18 years of age at the time of treatment with WU CART-007 | up to 15 years | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Overall survival (OS) | To evaluate survival n patients previously treated with WU-CART-007 | up to 15 years | 
| Progression-free survival (PFS) | To evaluate profession free survival in patients previously treated with WU-CART-007 | up to 15 years | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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T-ALL, T-LBL