Leukemia, Lymphocytic, Chronic, B-Cell
Conditions
Keywords
Residual disease
Brief summary
Phase II study testing chemo-free induction therapy with Ibrutinib + Obinutuzumab nine months / Study Part 1: All patients will receive 8 courses of GA101 + ibrutinib 420mg PO every 28 days Study Part 2: After evaluation at D1 of month 9: If patients are in CR with BM MRD \< 10-4, they will continue ibrutinib alone at a dose of 420mg daily If patients have BM MRD \>10-4 whatever IWCLL 2008 responses or PR they will receive four courses of GA101 + FC at 28-day intervals + Ibrutinib PO until final evaluation of M16
Detailed description
Phase II study testing chemo-free induction therapy with Ibrutinib + Obinutuzumab during nine months followed by a MRD-driven strategy. Assessment of response as well as bone marrow MRD evaluation will be performed at Day 1 month 9: 1. Patients reaching CR with marrow MRD below 10-4 threshold will continue ibrutinib during 6 additional months. 2. Patients in PR or bone marrow MRD \> 10-4 will receive Ibrutinib during 6 additional months and 4 courses of FC+ GA101. At Day 1 Month 16, patients in CR but with MRD\> 10-4 will continue Ibrutinib until progressive disease. 3. Patients in stable or progressive disease will be excluded out of the trial. Final evaluation of response (with BM MRD) will be performed at Day 1 Month 16.
Interventions
Part 1 :6 cycles Obinutuzumab/GA101: First cycle: D1: 100mg, D2: 900mg D8 and D15: 1000 mg i.v Cycle 2 to 6 (every 28 days) : D1 of every cycle: 1000 mg i.v PART 2 4 cycles -patients have BM MRD \>10-4 or PR: Cycle 1 to 4 Obitinuzumab/GA101: 1000 mg i.v on day 1
Part 1 :6 cycles Cycle 2 to 6 (every 28 days) :Ibrutinib: D3 Month 1 to Day 30 Month 15: 420mg daily PO PART 2:4 cycles * patients in CR with BM MRD \< 10-4 : Ibrutinib alone 420mg daily * patients with BM MRD \>10-4 whatever responses or PR :Cycle 1 to 4 Ibrutinib 420mg daily with Cyclophosphamide and Fludarabine
PART 2 : patients with BM MRD \>10-4 or PR (except PD and SD), receive : 4 cycles of FC+GA101 every 28 days Cyclophosphamide : 250 mg/m² per os, D2 to D4 in association with GA101, ibrutinib and fludarabine
PART 2 : patients with BM MRD \>10-4 or PR (except PD and SD), receive : 4 cycles of FC+GA101 every 28 days : Fludarabine : 40 mg/m² per os, D2 to D4 in association with GA101, ibrutinib and cyclophosphamide
Sponsors
Study design
Eligibility
Inclusion criteria
* Patient information and written informed consent * Age 18 years or older * Immunophenotypically confirmed B-CLL (IWCLL2008 and Matutes score 4 or 5) * Binet stage C according to IWCLL 2008 criteria or Binet stage A and B with active disease could be considered for inclusion. * Patients with no prior treatment (chemotherapy, radiotherapy, immunotherapy) except steroids for less than 1 month * Absence of 17p deletion as assessed by FISH (\< 10 % positive nuclei) * Performance status ECOG \< 2 * CIRS (Cumulative Illness Rating Scale) ≤ 6 (see appendix 4 for calculation of CIRS score) Mandatory inclusion criteria for treatment with ibrutinib Hematology values must be within the following limits: * Absolute neutrophil count (ANC) \<1 G/L independent of growth factor support * Platelets \<100 G/L or \<50 G/L if bone marrow involvement independent of transfusion support in either situation Biochemical values within the following limits: * Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) ≤ 3 x upper limit of normal (ULN) * Total bilirubin ≤ 1.5 x ULN unless bilirubin rise is due to Gilbert's syndrome or of non-hepatic origin * Serum creatinine ≤ 2 x ULN or estimated Glomerular Filtration Rate (Cockroft Gault≥ 40 mL/min/1.73m2 * Women of childbearing potential and men who are sexually active must be practicing a highly effective method of birth control during and after the study consistent with local regulations regarding the use of birth control methods for subjects participating in clinical trials. Men must agree to not donate sperm during and after the study. For females, these restrictions apply for 1 month after the last dose of study drug. For males, these restrictions apply for 3 months after the last dose of study drug. * Women of childbearing potential must have a negative serum (beta-human chorionic gonadotropin \[Beta-hCG\]) or urine pregnancy test at Screening. Women who are pregnant or breastfeeding are ineligible for this study. * Sign (or their legally-acceptable representatives must sign) an informed consent document indicating that they understand the purpose of and procedures required for the study, including biomarkers, and are willing to participate in the study
Exclusion criteria
* Binet stage A and B without active disease according to IWCLL 2008 criteria * Known HIV seropositivity * Hepatitis B or C seropositivity (unless clearly due to vaccination) * Active hemolysis (isolated positive DAT is not an
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Study treatment response | month 16 | IWCLL criteria response |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| progression free survival | month 16 | relapse |
| overall survival | month 16 | death |
| time to next treatment | 36 months | date of new treatment after first relapse |
Countries
France