The T-RRex study evaluates the efficacy of WU-CART-007 for patients with Relapsed/Refractory (R/R) T-Cell Acute Lymphoblastic Leukemia (T-ALL)/Lymphoblastic Lymphoma (LBL) and to WU-CART-007 as a therapy to induce complete Minimum Residual Disease (MRD) negative response

This is a Phase 2, single-arm, multi-center, open label study in patients with R/R T-ALL/LBL and T-ALL/LBL in remission but remaining MRD positive.

Key Inclusion Criteria:

• Disease Criteria: Evidence of T-ALL or T-LBL, as defined by World Health Organization (WHO) classification, and either relapse/refractory or MRD positive
• Age: Lower age limit of ≥ 6 months; adequate organ function
• Eastern Cooperative Oncology Group (ECOG)/Karnofsky Performance Status 0 or 1/70 and above at Screening.

Key Exclusion Criteria:

• Prior treatment with any anti-CD7 therapy.
• Patients with decompensated hemolytic anemia.
• Presence of Grade 2 to 4 acute or extensive chronic GvHD requiring systemic immunosuppression. Grade 1 GvHD not requiring immunosuppression or Grade 2 skin GvHD if treated with topical therapy only are acceptable.