The primary objective of the study is to evaluate efficacy of entospletinib in participants with relapsed or refractory hematologic malignancies. Participants with the following relapsed or refractory hematologic malignancies will be enrolled into the study: relapsed or refractory chronic lymphocytic leukemia (CLL), mantle cell lymphoma (MCL), diffuse large B-cell lymphoma (DLBCL), follicular lymphoma (FL), or non-FL indolent non-Hodgkin lymphomas (iNHL; including lymphoplasmacytoid lymphoma/ Waldenström macroglobulinemia \[LPL/WM\], small lymphocytic lymphoma \[SLL\], or marginal zone lymphoma \[MZL\]).
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
326
Entospletinib MM tablet administered orally
Entospletinib SDD tablet administered orally
University of Alabama at Birmingham
Birmingham, Alabama, United States
Arizona Oncology Associates
Tucson, Arizona, United States
City of Hope National Medical Center
Duarte, California, United States
Sharp Memorial Hospital
San Diego, California, United States
Rocky Mountain Cancer Centers, LLP
Boulder, Colorado, United States
Progression-Free Survival (PFS) Rate of Participants With CLL After BCR Targeted Therapy, MCL, and DLBCL at Week 16
PFS rate was assessed by Independent Review Committee (IRC) and defined per standardized criteria (2007 Cheson criteria) (for NHL) and International Workshop on Chronic Lymphocytic Leukemia (IWCLL) criteria (for CLL), as the percentage of participants not experiencing definitive progression or death. Disease progression was defined per standardized criteria as: evidence of any new disease; worsening of nodal or extra-nodal index lesions; unequivocal increase in the size of non-index lesions or non-measurable disease, size of the liver, spleen, or other organ; and a ≥ 25% increase from nadir in either monoclonal immunoglobulin M (IgM) concentration or total serum IgM quantitation. Disease progression was defined per standardized IWCLL criteria as: evidence of any new disease; worsening of index lesions, spleen or liver, or non-index disease; and decrease in platelet count or hemoglobin that is attributable to CLL. PFS rate was analyzed using Kaplan-Meier (KM) estimates.
Time frame: Week 16
PFS Rate of Participants With CLL (Including CLL, Prior BCR Inhibitor Naive Participants), FL, and Non-FL iNHL at Week 24
PFS rate was assessed by IRC and defined per standardized criteria (2007 Cheson criteria) (for NHL) and IWCLL criteria (for CLL), as the percentage of participants not experiencing definitive progression or death. Disease progression was defined per standardized criteria (2007 Cheson criteria) as: evidence of any new disease; worsening of nodal or extra-nodal index lesions; unequivocal increase in the size of non-index lesions or non-measurable disease, size of the liver, spleen, or other organ; and a ≥ 25% increase from nadir in either monoclonal IgM concentration or total serum IgM quantitation. Disease progression was defined per standardized IWCLL criteria as: evidence of any new disease; worsening of index lesions, spleen or liver, or non-index disease; and decrease in platelet count or hemoglobin that is attributable to CLL. PFS rate was analyzed using KM estimates.
Time frame: Week 24
Percentage of Participants Experiencing Treatment-Emergent Adverse Events
A treatment-emergent Adverse Event (AE) was defined as an AE that occurs in the period from the first dose of study treatment to 30 days after the last dose of study treatment or leads to discontinuation of study treatment. Participants were assessed for AEs according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE), version 4.03.
Time frame: First dose date up to the last dose date plus 30 days (maximum: 78.4 months)
Percentage of Participants With Hematology Postbaseline Toxicity Grade 3 or Higher
Hematology toxicity at any time postbaseline was summarized according to the NCI CTCAE, version 4.03. The most severe graded abnormality was counted for each participant per test. ANC = absolute neutrophil count; Hb = hemoglobin; WBC = white blood cells
Time frame: First dose date up to the last dose date plus 30 days (maximum: 78.4 months)
Percentage of Participants With Serum Chemistry Toxicity Postbaseline Grade 3 or Higher
Serum chemistry toxicity at anytime postbaseline was summarized according to the NCI CTCAE, version 4.03. The most severe graded abnormality was counted for each participant per test. ALT = alanine aminotransferase; ALP = alkaline phosphatase; AST = aspartate aminotransferase
Time frame: First dose date up to the last dose date plus 30 days (maximum: 78.4 months)
Objective Response Rate (ORR), as Assessed by IRC Per Standardized Criteria (2007 Cheson Criteria) (for NHL) and IWCLL Criteria (for CLL)
ORR: percentage of participants with complete response (CR) or partial response (PR) (or very good PR \[VGPR\] or minor response \[MR\] for participants with LPL/WM). Per 2007 Cheson criteria, CR: complete resolution of all disease-related radiological abnormalities; PR: ≥50% reduction in sum of products (SPD) of the longest diameters of all index lesions, no new lesions; VGPR: \>90% decrease from baseline (DFB) in IgM, and other criteria for CR met; MR: ≥25% but \<50% DFB in IgM, no increase from baseline (IFB) in SPD of lesions, no new lesions. Per IWCLL, CR: lymphocytes (Ly) \<4\*10\^9/L, no lymphadenopathy, normal spleen and liver size, absence of disease, absolute neutrophil count (ANC) \>1.5\*10\^9/L, platelets ≥100\*10\^9/L, hemoglobin (Hb) \>110 g/L, bone marrow at least normocellular for age; PR: ≥2 of these: ≥50% decrease in Ly, lymphadenopathy, size of liver and spleen, bone marrow infiltrates; and ≥1 of these: ANC \>1500/μL, platelets ≥100,000/µL, Hb \>11 g/dL.
Time frame: From first dose date until first occurrence of CR or PR (or VGPR or MR for participants with LPL/WM) (up to approximately 7 years)
Duration of Response (DOR), as Assessed by IRC Per Standardized Criteria (2007 Cheson Criteria) (for NHL) and IWCLL Criteria (for CLL)
DOR was defined as the interval from first documentation of CR or PR (or VGPR or MR for participants with LPL/WM) to earlier of first documentation of definitive disease progression or death from any cause. Per 2007 Cheson criteria, CR: complete resolution of all disease-related radiological abnormalities; PR: ≥50% reduction in SPD of longest diameters of all index lesions, no new lesions; VGPR: \>90% DFB in IgM, and other criteria for CR met; MR: ≥25% but \<50% DFB in IgM, no IFB in SPD of lesions, no new lesions. Per IWCLL criteria, CR: Ly \<4\*10\^9/L, no lymphadenopathy, normal spleen and liver size, absence of disease, ANC \>1.5\*10\^9/L, platelets ≥100\*10\^9/L, Hb \>110 g/L, bone marrow at least normocellular for age; PR: ≥2 of these: ≥50% decrease in Ly, lymphadenopathy, size of liver and spleen, bone marrow infiltrates; and ≥1 of these: ANC\>1500/μL, platelets ≥100,000/µL, Hb \>11 g/dL. Disease progression: as defined in Outcome measure 1. DOR was analyzed using KM estimates.
Time frame: From the date of first documentation of CR or PR (or VGPR or MR for participants with LPL/WM) to disease progression or death from any cause (up to approximately 7 years)
Time to Response (TTR), as Assessed by IRC Per Standardized Criteria (2007 Cheson Criteria) (for NHL) and IWCLL Criteria (for CLL)
TTR was defined as the interval from the first dose of study drug to the first documentation of CR or PR (or VGPR or MR for participants with LPL/WM). Per 2007 Cheson criteria, CR: complete resolution of all disease-related radiological abnormalities; PR: ≥ 50% reduction in SPD of the longest diameters of all index lesions, no new lesions; VGPR: \>90% DFB in IgM, and other criteria for CR met; MR: ≥25% but \<50% DFB in IgM, no IFB in SPD of lesions, no new lesions. Per IWCLL criteria, CR: Ly \<4\*10\^9/L, no lymphadenopathy, normal spleen and liver size, absence of disease, ANC \>1.5\*10\^9/L, platelets ≥100\*10\^9/L, Hb \>110 g/L, bone marrow at least normocellular for age; PR: ≥2 of these: ≥50% decrease in Ly, lymphadenopathy, size of liver and spleen, bone marrow infiltrates; and ≥1 of these: ANC \>1500/μL, platelets ≥100,000/µL, Hb \>11 g/dL.
Time frame: From the first dose of study drug to the first documentation of CR or PR (or VGPR or MR for participants with LPL/WM) (up to approximately 7 years)
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Kaiser Permanente of Colorado
Denver, Colorado, United States
Cancer Center of Central Connecticut
Southington, Connecticut, United States
Florida Cancer - Colonial
Fort Myers, Florida, United States
Memorial Cancer Institute
Hollywood, Florida, United States
Ocala Oncology Center
Ocala, Florida, United States
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