Clinical trial · Interventional
A Study of Venetoclax in Combination With Obinutuzumab in Participants With Chronic Lymphocytic Leukemia
A Phase Ib Multicenter Dose-Finding and Safety Study of Venetoclax and Obinutuzumab in Patients With Relapsed or Refractory or Previously Untreated Chronic Lymphocytic Leukemia
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
This multi-center, open-label, dose-finding study will evaluate the safety and pharmacokinetics as well as the preliminary efficacy of venetoclax (GDC-0199; ABT-199) administered in combination with obinutuzumab to participants with relapsed/refractory or previously untreated chronic lymphocytic leukemia (CLL). The study is comprised of two stages for each participant population: a dose-finding stage and a safety-expansion stage. The dose-finding stage will explore multiple doses of venetoclax to be used in combination with a fixed dose of obinutuzumab. The dose-finding stage will also explore two schedules for drug administration, Schedule A (venetoclax introduced before obinutuzumab) and Schedule B (venetoclax introduced after obinutuzumab).
Conditions
Conditions (1)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Lymphocytic Leukemia, Chronic | Chronic Lymphocytic Leukemia | ONTOLOGY_EXACT | 0.98 |
Interventions
Interventions (2)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Obinutuzumab | Drug | Obinutuzumab | ALIAS |
| Venetoclax | Drug | Venetoclax | ALIAS |
Design
Arms and outcomes
Arms (6)
- type
- EXPERIMENTAL
- label
- Dose-Finding: Schedule A: Relapsed/Refractory CLL
- description
- All 4 cohorts will begin venetoclax administration after the ramp-up period of 5 weeks. In 4 cohorts of participants with relapsed/refractory CLL escalating doses of venetoclax will be administered in combination with fixed dose obinutuzumab in the dose-finding stage. In Schedule A, venetoclax will be introduced before obinutuzumab. Schedule A will be explored prior to Schedule B.
- interventionNames
- Drug: Obinutuzumab
- Drug: Venetoclax
- type
- EXPERIMENTAL
- label
- Dose-Finding: Schedule B: Relapsed/Refractory CLL
- description
- In 4 cohorts of participants with relapsed/refractory CLL escalating doses of venetoclax will be administered in combination with fixed dose obinutuzumab in the dose-finding stage. In Schedule B, venetoclax will be introduced after obinutuzumab. Schedule A will be explored prior to Schedule B.
- interventionNames
- Drug: Obinutuzumab
- Drug: Venetoclax
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 18 Years
Show eligibility criteria text
Inclusion Criteria: * Diagnosis of relapsing/refractory or previously untreated chronic lymphocytic leukemia * Eastern Cooperative Oncology Group (ECOG) performance score of less than or equal to (\</=) 1 * Adequate bone marrow function * Adequate coagulation, renal and hepatic function * For all participants, agreement to remain abstinent or use contraceptive methods that result in a failure rate of less than (\<) 1% per year during the treatment period and for at least 90 days (30 days for women) after the last dose of venetoclax or 18 months after the last dose of obinutuzumab, whichever is longer Exclusion Criteria: * Participants who have undergone allogenic stem cell transplant are ineligible unless they meet the following criteria, a) participants who are off all immunosuppressive therapy, b) participants who have no signs and/or symptoms of acute or chronic graft versus host disease, or c) participants must have appropriate hematology counts * Infection with human immunodeficiency virus (HIV), hepatitis B, or hepatitis C * Uncontrolled autoimmune hemolytic anemia or thrombocytopenia * Investigational or anti-cancer therapy within 5 half-lives prior to the first dose of study drug * History of significant renal, neurologic, psychiatric, endocrinologic, metabolic, immunologic, cardiovascular, or hepatic disease
References
Publications (2)
- DERIVEDSamineni D, Gibiansky L, Wang B, Vadhavkar S, Rajwanshi R, Tandon M, Sinha A, Al-Sawaf O, Fischer K, Hallek M, Salem AH, Li C, Miles D. Pharmacokinetics and Exposure-Response Analysis of Venetoclax + Obinutuzumab in Chronic Lymphocytic Leukemia: Phase 1b Study and Phase 3 CLL14 Trial. Adv Ther. 2022 Aug;39(8):3635-3653. doi: 10.1007/s12325-022-02170-w. Epub 2022 Jun 16. PMID 35708885
- DERIVEDFlinn IW, Gribben JG, Dyer MJS, Wierda W, Maris MB, Furman RR, Hillmen P, Rogers KA, Iyer SP, Quillet-Mary A, Ysebaert L, Walter HS, Verdugo M, Klein C, Huang H, Jiang Y, Lozanski G, Pignataro DS, Humphrey K, Mobasher M, Kipps TJ. Phase 1b study of venetoclax-obinutuzumab in previously untreated and relapsed/refractory chronic lymphocytic leukemia. Blood. 2019 Jun 27;133(26):2765-2775. doi: 10.1182/blood-2019-01-896290. Epub 2019 Mar 12. PMID 30862645