Study of Efficacy and Safety of CTL019 in Pediatric ALL Patients

Inclusion Criteria

• Relapsed or refractory pediatric B-cell ALL and lymphoblastic lymphoma:
• 2nd or greater Bone Marrow (BM) relapse OR
• Any BM relapse after allogeneic SCT and must be > 6 months from SCT at the time of CTL019 infusion OR
• Refractory as defined by not achieving a CR after 2 cycles of a standard chemotherapy regimen chemotherapy regimen or chemorefractory as defined by not achieving a CR after 1 cycle of standard chemotherapy for relapse leukemia OR
• Patients with Philadelphia chromosome positive (Ph+) ALL are eligible if they are intolerant to or have failed 2 lines of tyrosine kinase inhibitor therapy (TKI), or if TKI therapy is contraindicated OR
• Ineligible for allogeneic SCT
• For relapsed patients, CD19 tumor expression demonstrated in bone marrow or peripheral blood by flow cytometry within 3 months of study entry
• Adequate organ function defined as:
• Renal function defined as (Calculated creatinine clearance or radioisotope Glomerular Filtration Rate (GFR) > 60 mL/min/1.73 m2 OR serum creatinine based on age/gender
• Alanine Aminotransferase (ALT) 91% on room air
• Left Ventricular Shortening Fraction (LVSF) ≥ 28% confirmed by echocardiogram, or Left Ventricular Ejection Fraction (LVEF) ≥ 45% confirmed by echocardiogram or MUGA within 7 days of screening
• Bone marrow with ≥ 5% lymphoblasts by morphologic assessment at screening
• Life expectancy > 12 weeks
• Age 3 at the time of screening per protocol to age 21 at the time of initial diagnosis
• Karnofsky (age ≥ 16 years) or Lansky (age Grade 1 with the exception of a history of controlled seizures or fixed neurologic deficits that have been stable/improving over the past 3 months.

Exclusion Criteria

• Isolated extra-medullary disease relapse
• Patients with concomitant genetic syndrome: such as patients with Fanconi anemia, Kostmann syndrome, Shwachman syndrome or any other known bone marrow failure syndrome. Patients with Down Syndrome will not be excluded.
• Patients with Burkitt's lymphoma/leukemia (i.e. patients with mature B-cell ALL, leukemia with B-cell [surface Immunoglobulin (sIg) positive and kappa or lambda restricted positivity] ALL, with FAB L3 morphology and /or a MYC translocation)
• Prior malignancy, except carcinoma in situ of the skin or cervix treated with curative intent and with no evidence of active disease
• Prior treatment with gene therapy product
• Treatment with any prior anti-CD19/anti-CD3 therapy, or any other anti-CD19 therapy
• Presence of Grade 2 to 4 acute or extensive chronic graft-versus-host disease (GVHD)
• Patient has participated in an investigational research study using an investigational agent within the last 30 days prior to screening
• Pregnant or nursing (lactating) women. NOTE: female study participants of reproductive potential must have a negative serum or urine pregnancy test performed within 48 hours before infusion
• Active or latent hepatitis B or active hepatitis C (test within 8 weeks of screening), or any uncontrolled infection at screening
• HIV positive test within 8 weeks of screening
• The following medications are excluded:
• Steroids: Therapeutic systemic doses of steroids must be stopped > 72 hours prior to CTL019 infusion. However, the following physiological replacement doses of steroids are allowed: 6 weeks prior to CTL019 infusion
• GVHD therapies: Any systemic drug used for GVHD must be stopped > 4 weeks prior to CTL019 infusion to confirm that GVHD recurrence is not observed (e.g. calcineurin inhibitors, methotrexate or other chemotherapy drugs, mycophenolate, rapamycin, thalidomide, or immunosuppressive antibodies such as anti-CD20 (rituximab), anti-tumor necrosis factor [anti-TNF], anti-interleukin 6 [anti-IL6] or anti-interleukin 6 receptor [anti-IL6R], systemic steroids)
• Chemotherapy:
• Tyrosine kinase inhibitors and hydroxyurea must be stopped > 72 hours prior to CTL019 infusion
• The following drugs must be stopped > 1 week prior to CTL019 infusion a