Primary Objective:

- To evaluate the efficacy of SAR245409 as determined by the objective response rate (ORR) in patients with 1 of following relapsed or refractory lymphoma or leukemia subtypes: mantle cell lymphoma (MCL), follicular lymphoma (FL), chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma (SLL), or diffuse large B cell lymphoma (DLBCL)

Secondary Objectives:

• To assess duration of response, progression free survival (PFS), and proportion of patients with PFS at 6 months (24 weeks) in patients with either MCL, FL, CLL/SLL or DLBCL treated with SAR245409
• To evaluate the safety and tolerability of SAR245409 in patients with MCL, FL, CLL/SLL or DLBCL
• To further characterize the plasma pharmacokinetics (PK) of SAR245409 in patients with MCL, FL, CLL/SLL or DLBCL

There is a 21 day screening period followed by 28 day cycles. Patients will continue to receive SAR245409 as long as there is clinical benefit or until a study withdrawal criterion is met. The last posttreatment visit will be 30 days after the last dose or until IMP-related toxicities have resolved or are deemed irreversible, whichever is later.

Inclusion criteria:

• Tissue from an archived or fresh tumor sample
• A peripheral blood buffy coat sample is required for CLL/SLL.
• Patient has mantle cell lymphoma (MCL), follicular lymphoma (FL), or chronic lymphocytic leukemia (CLL)/SLL or diffuse large B cell lymphoma
• Patient > or = 18 years old
• Eastern Cooperative Oncology Group (ECOG) performance status < or = 2. Patients with DLBCL will have ECOG < or = 1
• Adequate white blood cells and hemoglobin
• Good kidney and liver function
• Fasting glucose < 160 mg/dL
• No other malignancy
• Use of adequate birth control

Exclusion criteria:

• Treatment with cytotoxic chemotherapy, biologic agents, investigational therapies within 4 weeks, or nitrosoureas or mitomycin C within 6 weeks of study enrollment
• Treatment with a small-molecule kinase inhibitor within 2 weeks, or 5 half lives of the drug or its active metabolites (whichever is longer) of study enrollment
• Prior treatment with a PI3K, mTOR, or Akt inhibitor. Prior treatment of MCL with temsirolimus is permitted in patients enrolled from countries where it is licensed for this indication.
• Radiation therapy within 2 weeks of enrollment
• Autologous stem cell transplantation within 16 weeks of enrollment
• Prior allogeneic transplantation except for patients with R/R DLBCL who meet inclusion criteria
• Central nervous system (CNS) or leptomeningeal involvement. Patients with DLBCL may have active CNS or leptomeningeal involvement.
• Positive Hepatitis B surface antigen (HBsAg) or Hepatitis C antibody (anti-HCV) serology
• Primary CNS lymphoma
• Primary mediastinal B-lymphoma

The above information is not intended to contain all considerations relevant to a patient's potential participation in a clinical trial.