A Study to Evaluate the Long-term Safety of Patients With Advanced Lymphoid Leukemia Who Have Been Previously Administered With UCART19

Long-term Follow-up Study of Patients Who Have Previously Been Exposed to UCART19 (Allogeneic Engineered T-cells Expressing a Lentiviral-based Anti-CD19 Chimeric Antigen Receptor)

The purpose of this study is to evaluate the long-term safety and efficacy of UCART19 administration to patients with advanced lymphoid leukemia.

Inclusion Criteria:

• Written informed consent obtained prior any study-specific procedure (patient or parent(s) or legal representative)
• Patient dosed with UCART19 who completed or discontinued early from a sponsored or from any investigator-initiated study that tested UCART19, or patients who were administered UCART19 under a special access scheme (compassionate use);
• Female patients of childbearing potential and male patients with partners of childbearing potential must continue to use an effective method of birth control as well as their partners for a 12-month duration after the last UCART19 administration.

Exclusion Criteria:

- No exclusion criteria for this study