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Chronic Lymphocytic Leukemia (CLL) / Small Lymphocytic Lymphoma (SLL)Phase 2NCT06958705

Venetoclax as Consolidation in CLL Patients Treated With BTK Inhibitor Monotherapy

A Phase 2 study testing Venetoclax combined with Ibrutinib, Venetoclax combined with Zanubrutinib and Venetoclax combined with Acalabrutinib in people with Chronic Lymphocytic Leukemia (CLL) / Small Lymphocytic Lymphoma (SLL), run by The First Affiliated Hospital with Nanjing Medical University at 1 site in China.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
Search all trials

Trial summary

This is an open-label, multicenter, phase 2, non-randomized study aiming to study the efficacy and safety of fixed-duration venetoclax consolidation in CLL patients who are on BTK inhibitor monotherapy. Patients who are on BTK inhibitor monotherapy for ≥ 6 months and still responsive are included. Read more about this study

Who is it for?
Ages 18 to 80 years
What is being tested?
Venetoclax combined with Ibrutinib, Venetoclax combined with Zanubrutinib and Venetoclax combined with Acalabrutinib
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
79 participants
Where
1 siteChina
Study dates
1 Dec 2025to 1 Feb 2028
Phase
Phase 2
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • 1. Age: 18-80 years-old.
  • 2. Patients must have a diagnosis of CLL/SLL.
  • 3. Detectable MRD by flow cytometry (10^-4 sensitivity) in the peripheral blood.
  • 4. Patients who are on BTK inhibitor monotherapy for more than 6 months. This study includes patients who are taking one of the following BTK inhibitors: ibrutinib, zanubrutinib, orelabrutinib, and acalabrutinib.
  • 5. Patients need to have a response of at least PR (CR/PR) to BTK inhibitor monotherapy.
  • 6. Eastern Cooperative Oncology Group (ECOG) Performance Status ≤ 2.
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  • 7. Patients must have adequate renal and hepatic function:
  • Serum bilirubin ≤ 1.5 × upper limit of normal (ULN) or ≤ 3 × ULN for patients with Gilbert's disease;
  • Serum creatinine clearance of ≥ 50 ml/min (calculated or measured);
  • ALT and AST ≤ 3.0 × ULN, unless clearly due to disease involvement.
  • 8. Adequate bone marrow function:
  • Platelet count of greater than 50,000/µl, with no platelet transfusion in prior 2 weeks;
  • ANC ≥ 1000/µl in the absence of growth factor support unless due to compromised bone marrow production from CLL, indicated by ≥ 80% CLL in marrow;
  • Hemoglobin ≥ 8g/dL.
  • 9. Adequate cardiac function, as assessed by:
  • Absence of uncontrolled cardiac arrhythmia;
  • Echocardiogram demonstrating LVEF ≥ 35%;
  • NYHA functional class ≤ 2.
  • 10. Ability to provide informed consent and adhere to the required follow-up.

Who cannot join

  • 1. Richter transformation.
  • 2. Active malignancy requiring systemic therapy, other than CLL, with the exception of: adequately treated in situ carcinoma of the cervix uteri; adequately treated basal cell carcinoma or localized squamous cell carcinoma of the skin; previous malignancy confined and surgically resected (or treated with other modalities) with curative intent.
  • 3. Major surgery, radiotherapy, chemotherapy, biologic therapy, immunotherapy, experimental therapy within 3 weeks prior to the first dose of the study drug.
  • 4. Grade 3 or 4 hemorrhage within the past 3 weeks.
  • 5. Uncontrolled active infections (viral, bacterial, and fungal).
  • 6. Females who are pregnant or lactating.
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  • 7. Known HIV positive.
  • 8. Active hepatitis B infection (defined as the presence of detectable HBV DNA or HBe antigen). Patients who are HBsAg positive or HBcAb positive are eligible, provided HBV DNA is negative. These patients must have monthly monitoring of HBV DNA for the duration of the study.
  • 9. Active hepatitis C, defined by the detection of hepatitis C RNA in plasma by PCR.
  • 10. Active, uncontrolled autoimmune phenomenon (autoimmune hemolytic anemia or immune thrombocytopenia) requiring steroid therapy > 20 mg prednisone daily or equivalent, within 7 days of starting venetoclax.
  • 11. Received other therapeutic agents for CLL/SLL during BTK inhibitor treatment prior to enrollment.
  • 12. Concurrent use of warfarin or equivalent vitamin K inhibitor or other oral anticoagulant treatment.
  • 13. Received strong CYP3A inhibitors or strong CYP3A inducers within 7 days of starting venetoclax.
  • 14. Consuming grapefruit, grapefruit products, Seville oranges, or star fruit within 7 days of starting venetoclax.
  • 15. Prior treatment with venetoclax or other Bcl-2 inhibitor.
  • 16. Malabsorption syndrome or other condition that precludes enteral route of administration.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Jianyong Li, PhD, MD contact

86-13951877733

lijianyonglm@126.com

Huayuan Zhu, PhD, MD contact

86-13813810650

huayuan.zhu@hotmail.com

China1 site, 1 recruiting
  • Department of Haematology, the First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital

    Nanjing, Jiangsu, 210029

    Jianyong Li, PhD, MD, 86-13951877733, lijianyonglm@126.com

    Huayuan Zhu, PhD, MD, 86-13813810650, huayuan.zhu@hotmail.com

    Recruiting

Other trials in China

About this study

Official title: Study of the Efficacy and Safety of Venetoclax as Consolidation to Achieve Fix-Duration Treatment in CLL Patients Treated With BTK Inhibitor Monotherapy

This is an open-label, multicenter, phase 2, non-randomized study aiming to study the efficacy and safety of fixed-duration venetoclax consolidation in CLL patients who are on BTK inhibitor monotherapy. Patients who are on BTK inhibitor monotherapy for ≥ 6 months and still responsive are included. The study includes patients who are treatment-naive before taking BTK inhibitors. Patients will be treated with the BTK inhibitor plus full-dose venetoclax for 12 cycles after a standard 5-week dose ramp-up. Peripheral blood and bone marrow MRD status will be evaluated during and after the treatment. After the completion of combination therapy, patients will stop both BTK inhibitor and venetoclax and be followed.

Being tested
Venetoclax combined with Ibrutinib, Venetoclax combined with Zanubrutinib, Venetoclax combined with Acalabrutinib, Venetoclax combined with Orelabrutinib
Medical subject headings
Leukemia, Lymphocytic, Chronic, B-Cell

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Venetoclax combined with IbrutinibDrug

    All Patients will be treated with venetoclax for 12 cycles after a standard 5-week dose ramp-up, as an add-on to the primary using ibrutinib. After the completion of combination therapy, patients will stop both the ibrutinib and venetoclax then be followed.

    Each cycle is 28 days. At the start of cycle 0, patients will start venetoclax by 20mg-50mg-100mg-200mg daily in a weekly dose escalation way. The combination of full dose venetoclax (400mg) and ibrutinib will continue for an additional 12 cycles. Venetoclax and ibrutinib will be continued until the completion of cycle 12, start of new CLL-directed therapies, disease progression or unacceptable toxicities, depending on which comes first.

    Ibrutinib is intended to be admistratered orally 420mg once daily.

  • Venetoclax combined with ZanubrutinibDrug

    All Patients will be treated with venetoclax for 12 cycles after a standard 5-week dose ramp-up, as an add-on to the primary using zanubrutinib. After the completion of combination therapy, patients will stop both the zanubrutinib and venetoclax then be followed.

    Each cycle is 28 days. At the start of cycle 0, patients will start venetoclax by 20mg-50mg-100mg-200mg daily in a weekly dose escalation way. The combination of full dose venetoclax (400mg) and zanubrutinib will continue for an additional 12 cycles. Venetoclax and zanubrutinib will be continued until the completion of cycle 12, start of new CLL-directed therapies, disease progression or unacceptable toxicities, depending on which comes first.

    Zanubrutinib is intended to be admistratered orally 160mg twice daily.

  • Venetoclax combined with AcalabrutinibDrug

    All Patients will be treated with venetoclax for 12 cycles after a standard 5-week dose ramp-up, as an add-on to the primary using acalabrutinib. After the completion of combination therapy, patients will stop both the acalabrutinib and venetoclax then be followed.

    Each cycle is 28 days. At the start of cycle 0, patients will start venetoclax by 20mg-50mg-100mg-200mg daily in a weekly dose escalation way. The combination of full dose venetoclax (400mg) and acalabrutinib will continue for an additional 12 cycles. Venetoclax and acalabrutinib will be continued until the completion of cycle 12, start of new CLL-directed therapies, disease progression or unacceptable toxicities, depending on which comes first.

    Acalabrutinib is intended to be admistratered orally 100mg twice daily.

  • Venetoclax combined with OrelabrutinibDrug

    All Patients will be treated with venetoclax for 12 cycles after a standard 5-week dose ramp-up, as an add-on to the primary using orelabrutinib. After the completion of combination therapy, patients will stop both the orelabrutinib and venetoclax then be followed.

    Each cycle is 28 days. At the start of cycle 0, patients will start venetoclax by 20mg-50mg-100mg-200mg daily in a weekly dose escalation way. The combination of full dose venetoclax (400mg) and orelabrutinib will continue for an additional 12 cycles. Venetoclax and orelabrutinib will be continued until the completion of cycle 12, start of new CLL-directed therapies, disease progression or unacceptable toxicities, depending on which comes first.

    Orelabrutinib is intended to be admistratered orally 150mg once daily.

Study groups in NCT06958705
Study groupRoleWhat they receive
CLL/SLL patients on ibrutinib monotherapy for ≥ 6 monthsExperimentalNot described
Receives: Drug: Venetoclax combined with Ibrutinib
CLL/SLL patients on zanubrutinib monotherapy for ≥ 6 monthsExperimentalNot described
Receives: Drug: Venetoclax combined with Zanubrutinib
CLL/SLL patients on acalabrutinib monotherapy for ≥ 6 monthsExperimentalNot described
Receives: Drug: Venetoclax combined with Acalabrutinib
CLL/SLL patients on orelabrutinib monotherapy for ≥ 6 monthsExperimentalNot described
Receives: Drug: Venetoclax combined with Orelabrutinib

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Rate of BM-uMRD after completion of combination therapy (Day 1 of Cycle 16)

    Rate of BM-uMRD is defined by negative MRD in the bone marrow by flow cytometry at a sensitivity of 10^-4. The Clopper Pearson method is used to estimate the 95% two-sided confidence interval (CI) of the rate of BM-uMRD.

    Measured: On Day 1 of Cycle 16 (each cycle is 28 days)

Secondary outcomes (6)
  1. Rate of undetected peripheral blood MRD by flow cytometry

    Rate of undetected peripheral blood MRD is defined by negative MRD in the peripheral blood by flow cytometry at a sensitivity of 10^-4.

    Measured: On screening, Day 1 of Cycle 4, Day 1 of Cycle 7, Day 1 of Cycle 10, Day 1 of Cycle 16, Day 1 of Cycle 20, Day 1 of Cycle 24, Day 1 of Cycle 28 and Day 1 of Cycle 34 (each cycle is 28 days)

  2. Rate of complete response (CR)

    CR is defined by the 2018 IWCLL criteria. Enhanced contrast CT combined with bone marrow examination will be performed to determine if a patient achieve CR.

    Measured: On Day 1 of Cycle 7, Day 1 of Cycle 16, Day 1 of Cycle 22, and Day 1 of Cycle 28 (each cycle is 28 days)

  3. Progression-free survival (PFS)

    PFS is defined as the time from the first dose of venetoclax to progression, or death due to any cause, whichever occurs first. For subjects without progression, relapse, or death at the time of analysis, EFS will be censored at the last assessment date.

    Measured: From the first dose of venetoclax until the date of progression or date of death from any cause, whichever came first, assessed up to 112 months

  4. Overall survival (OS)

    OS is defined as the time from the first dose of venetoclax to death due to any cause. Subjects who remain alive at the time of analysis will be censored at the last known alive date of the subject.

    Measured: From the first dose of venetoclax until the date of death from any cause, assessed up to 112 months

  5. Time to next treatment (TTNT)

    TTNT is defined as the time from the first dose of venetoclax to the next CLL-directed therapies.

    Measured: From the first dose of venetoclax to the next CLL-directed therapies due to progression, assessed up to 112 months

  6. Adverse Events

    All treatment-emergent AEs will be included in the analysis. For each AE, the number and percentage of subjects who experience at least one occurrence of the given event will be summarized. The number and percent of subjects with TEAEs will be summarized according to intensity (CTCAE, v5) or IWCLL for hematologic toxicity, and drug relationship, as well as categorized by system organ class and preferred term. Summaries, listings, datasets, or subject narratives may be provided, as appropriate, for those subjects who die, who discontinue treatment due to an AE, or who experience a severe AE or a SAE.

    Measured: From screening to 30 days after the end of cycle 12 (each cycle is 28 days)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted6 May 2025
  2. Study start1 Dec 2025 (estimated)
  3. Primary completion1 Dec 2027 (estimated)
  4. Study completion1 Feb 2028 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Parallel groups
Model description
Patients will be treated with the BTK inhibitor plus full-dose venetoclax for 12 cycles after a standard 5-week dose ramp-up. Peripheral blood and bone marrow MRD status will be evaluated during and after the treatment. After the completion of combination therapy, patients will stop both BTK inhibitor and venetoclax and be followed.
Masking
None (open label)
Enrolment
79 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06958705
Sponsor's protocol ID
2024-SR-1147
Status last verified
Apr 2025
First submitted
8 Apr 2025
Last updated
25 Nov 2025
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Venetoclax combined with Ibrutinib, Venetoclax combined with Zanubrutinib and Venetoclax combined with Acalabrutinib in people with Chronic Lymphocytic Leukemia (CLL) / Small Lymphocytic Lymphoma (SLL), run by The First Affiliated Hospital with Nanjing Medical University at 1 site in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 19 inclusion and 16 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 25 Nov 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Jianyong Li, PhD, MD (86-13951877733, lijianyonglm@126.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Rate of BM-uMRD after completion of combination therapy (Day 1 of Cycle 16) (time frame: On Day 1 of Cycle 16 (each cycle is 28 days)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 25 Nov 2025.

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