Acalabrutinib and Venetoclax for relapsed CLL/SLL after initial BTKi+BCL2i response
Official title: The MAVRiC Study: A Phase II Study of Disease Risk Mutation Guided Finite Duration Acalabrutinib Plus Venetoclax for Relapse in CLL/SLL After First-line Finite Covalent BTKi Plus BCL2i Combination, With or Without Obinutuzumab
Run by AstraZeneca · NCT07024706 · Data updated 2026-11-12
This trial tests a finite-duration combination of acalabrutinib and venetoclax in adults whose CLL or SLL has relapsed after a first-line BTKi+BCL2i therapy and who had at least 2 years of response.
Quick facts
| Phase | Phase 2 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years to 130 Years |
| Sex | All |
| Enrollment | 80 (estimated) |
| Sponsor | AstraZeneca Industry-sponsored |
| Drugs / interventions | obinutuzumab, acalabrutinib |
| Locations | 47 sites (Boston, Massachusetts and 46 other locations) |
| Status | Recruiting |
| Started | June 4, 2026 |
| Main results expected | May 1, 2029 |
| Study ends | March 23, 2033 |
| Registry record updated | October 23, 2026 |
| Trial ID | NCT07024706 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults (≥18) with relapsed CLL/SLL who previously responded to a single prior fixed-duration BTKi+BCL2i regimen for ≥2 years and meet the specified genetic risk criteria.
✕Probably not a fit
Patients without prior durable response to 1L therapy or without the defined IGHV/TP53 risk profile may have limited or no benefit.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This phase 2 study investigates whether a fixed-duration treatment with acalabrutinib plus venetoclax can provide an effective second-line option for relapsed CLL/SLL patients who previously responded to first-line BTKi+BCL2i therapy. Eligible participants are adults with relapsed disease who achieved PR or better for at least 2 years after 1L therapy and have specified IGHV/TP53 risk profiles. The study will assess overall response rate and safety over up to 5 years per participant, with groups defined by disease risk. Treatment consists of acalabrutinib and venetoclax, followed by post-treatment follow-up after the intervention.
Why it matters
Potential benefit: If successful, participants may achieve a meaningful reduction in disease burden with a manageable safety profile and a defined treatment window.
How similar studies have gone: Previous relapsed CLL/SLL studies using BTKi+BCL2i have shown activity in similar contexts, but this exact AV combination as 2L therapy after 1L response is being explored in this trial.
Who can join: the full rules
Show full inclusion / exclusion criteria
Main Inclusion Criteria: 1. Participant must be ≥ 18 years at the time of signing informed consent. 2. Diagnosis of relapsed CLL/SLL according to iwCLL guidelines 2018 (Hallek et al. 2018) in need of treatment. 3. Participants must have received only one prior first line treatment with fixed duration covalent BTKi plus BCL2i therapy (± obinutuzumab) with a response ≥ PR (i.e., CR, CRi, nPR, or PR) for a minimum of 2 years since the end of the prior 1L treatment. 4. The following data must be available or at least the appropriate samples drawn/acquired prior to dosing: 1. IGHV (mutated vs. unmutated) 2. del(17p) (present or absent) 3. TP53 mutation (present or absent) 5. ECOG performance status 0, 1 or 2 6. Adequate organ and bone marrow (BM) function. Main Exclusion Criteria: 1. Any evidence of diseases that, in the investigator's opinion, makes it undesirable for patient to participate in the study. 2. Significant cardiovascular or cerebrovascular disease. 3. Active bleeding or history of bleeding diathesis (e.g., hemophilia or von Willebrand disease). 4. Child-Pugh B/C liver cirrhosis. 5. History of prior or current malignancy. 6. HIV positive 7. History of progressive multifocal leukoencephalopathy (PML). 8. Active hepatitis B or C infection: 9. Corticosteroid use \> 20 mg within 1 week before the first dose of study intervention. 10. History of hypersensitivity or anaphylaxis to study intervention(s). 11. Requires treatment with a strong CYP3A4 inhibitor/inducer. 12. Requires or receiving anticoagulation with warfarin or equivalent vitamin K antagonists. 13. Major surgical procedure within 30 days of the first dose of study intervention.
Where it's running
-
Research Site
Boston, Massachusetts, United States Recruiting -
Research Site
Charlotte, North Carolina, United States Recruiting -
Research Site
Durham, North Carolina, United States Recruiting -
Research Site
Winston-Salem, North Carolina, United States Recruiting -
Research Site
Horn, Austria Recruiting -
Research Site
Dublin, Ireland Recruiting
Show 41 more locations
-
Research Site
Dublin, Ireland Recruiting -
Research Site
Meldola, Italy Recruiting -
Research Site
Padua, Italy Recruiting -
Research Site
Ravenna, Italy Recruiting -
Research Site
Barcelona, Spain Recruiting -
Research Site
Barcelona, Spain Recruiting -
Research Site
Granada, Spain Recruiting -
Research Site
Madrid, Spain Recruiting -
Research Site
Madrid, Spain Recruiting -
Research Site
Majadahonda, Spain Recruiting -
Research Site
Charlotte, North Carolina, United States Withdrawn -
Research Site
Goiânia, Brazil Not yet recruiting -
Research Site
Porto Alegre, Brazil Not yet recruiting -
Research Site
Porto Alegre, Brazil Not yet recruiting -
Research Site
São Paulo, Brazil Not yet recruiting -
Research Site
São Paulo, Brazil Not yet recruiting -
Research Site
Brno, Czechia Not yet recruiting -
Research Site
Hradec Kralova, Czechia Not yet recruiting -
Research Site
Ostrava, Czechia Not yet recruiting -
Research Site
Milan, Italy Not yet recruiting -
Research Site
Milan, Italy Withdrawn -
Research Site
Milan, Italy Not yet recruiting -
Research Site
Rome, Italy Withdrawn -
Research Site
Torino, Italy Withdrawn -
Research Site
Bydgoszcz, Poland Not yet recruiting -
Research Site
Krakow, Poland Withdrawn -
Research Site
Lodz, Poland Withdrawn -
Research Site
Lublin, Poland Not yet recruiting -
Research Site
Warsaw, Poland Not yet recruiting -
Research Site
Warsaw, Poland Not yet recruiting -
Research Site
Madrid, Spain Not yet recruiting -
Research Site
Oviedo, Spain Not yet recruiting -
Research Site
Seville, Spain Not yet recruiting -
Research Site
Zaragoza, Spain Not yet recruiting -
Research Site
Colchester, United Kingdom Not yet recruiting -
Research Site
Derby, United Kingdom Not yet recruiting -
Research Site
Edgbaston, United Kingdom Not yet recruiting -
Research Site
Exeter, United Kingdom Not yet recruiting -
Research Site
Leeds, United Kingdom Not yet recruiting -
Research Site
London, United Kingdom Not yet recruiting -
Research Site
Southampton, United Kingdom Not yet recruiting
Study contacts
- Study coordinator: AstraZeneca Clinical Study Information Center
- Email: information.center@astrazeneca.com
- Phone: 1-877-240-9479
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
-
Ibrutinib and Venetoclax in CLL/SLL: Long-Term Outcomes After Frontline CAPTIVATE
This study follows people with CLL or SLL who previously received the ibrutinib plus venetoclax combination in CAPTIVATE to see how they do over time and what treatments they need if the disease returns.
-
Immune profiling during first-line pirtobrutinib treatment for CLL/SLL
This will test pirtobrutinib as a first treatment for adults with CLL or SLL and see how it changes immune cells in the blood and lymph nodes.
-
NX-5948 treatment for adults with CLL or SLL after prior BTK and BCL-2 inhibitor therapy
NX-5948, an oral BTK degrader, will be tried to see if it helps adults with relapsed or refractory CLL or SLL who have already been treated with both BTK and BCL-2 inhibitors.
-
Quality of life and symptom changes over two years in adults with CLL or SLL starting targeted therapy
This study will see how quality of life, fatigue, and symptoms change over two years for adults with CLL or SLL who start treatment with a BTK inhibitor versus a BCL2 inhibitor.
-
Zanubrutinib, obinutuzumab, and sonrotoclax for newly diagnosed CLL or SLL
This trial tests whether the three‑drug combination of zanubrutinib, obinutuzumab, and sonrotoclax can produce undetectable measurable residual disease (uMRD) in people with previously untreated CLL or SLL.
-
Long-term safety of lisocabtagene maraleucel in patients with relapsed/refractory CLL or SLL
This study is testing the long-term safety of a treatment called lisocabtagene maraleucel in people with relapsed or hard-to-treat chronic lymphocytic leukemia or small lymphocytic lymphoma.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.