Recruiting

Phase 2

Nemtabrutinib & Lisocabtagene MaraleucelNemtabrutinib and Lisocabtagene Maraleucel for the Treatment of Relapsed/Refractory Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma

Sponsor:

Fred Hutchinson Cancer Center

Code:

NCT07194980

Conditions

Recurrent Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma

Refractory Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Not accepted

Interventions

Nemtabrutinib

Lisocabtagene Maraleucel

Study Details

Brief summary:

This phase II trial studies how well the addition of nemtabrutinib to lisocabtagene maraleucel in treating patients with chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) that has come back after a period of improvement (relapsed) or that does not respond to treatment (refractory). Nemtabrutinib may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Lisocabtagene maraleucel is a type of treatment called chimeric antigen receptor (CAR) T-cell therapy, in which a patient's T-cells (a type of immune system cell) are changed in the laboratory so they will attack cancer cells. T-cells are taken from a patient's blood. Then the gene for a special receptor that binds to a certain protein on the patient's cancer cells is added to the T-cells in the laboratory. The special receptor is called a chimeric antigen receptor (CAR). Large numbers of the CAR T-cells are grown in the laboratory and given to the patient by infusion for treatment. Adding nemtabrutinib to lisocabtagene maraleucel may be an effective treatment for relapsed/refractory CLL/SLL.

Conditions

Recurrent Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma

Refractory Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma

Study ID

NCT07194980

Start date

Sep 1, 2026

Status verified date

May, 2026

Completion date

Oct 20, 2029

Anticipated

Primary completion date

Oct 20, 2029

Anticipated

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Not accepted

Inclusion Criteria:

Confirmed diagnosis of CLL/SLL per International Workshop on Chronic Lymphocytic Leukemia (iwCLL) classification
Measurable disease by imaging (lymph node \[LN\] > 1.5cm) or absolute lymphocyte count (ALC) (> 5000/μL) or marrow involvement of at least 30% by flow cytometry
Eligible for lisocabtagene maraleucel (liso-cel) as standard-of-care per Food and Drug Administration (FDA) label for CLL/SLL
At least 18 years of age at time of study enrollment
Have an Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 2
The ability to swallow and retain oral medication

NOTE: Administration of nemtabrutinib is not permitted through a percutaneous endoscopic gastro-jejunal (J PEG) tube
Participants who are hepatitis B surface antigen (HBsAg) positive are eligible if they have received hepatitis B virus (HBV) antiviral therapy for at least 4 weeks and have undetectable HBV viral load prior to randomization

Note: Participants should remain on anti-viral therapy throughout study intervention and follow local guidelines for HBV anti-viral therapy post completion of study intervention. Hepatitis B screening tests should include HBsAg and anti-HBV. Hepatitis B screening tests are not required unless:

Known history of HBV infection,
As mandated by local health authority
Absolute neutrophil count (ANC) ≥ 500/µL

Growth factor and/or transfusion support is permissible to stabilize participant prior to study treatment if needed
No lower limit if cytopenia is related to bone marrow involvement
Hemoglobin ≥ 8 g/dL

Growth factor and/or transfusion support is permissible to stabilize participant prior to study treatment if needed
No lower limit if cytopenia is related to bone marrow involvement
Platelets ≥ 25 000/µL

Growth factor and/or transfusion support is permissible to stabilize participant prior to study treatment if needed
No lower limit if cytopenia is related to bone marrow involvement
Creatinine ≤ 1.5 × upper limit of normal (ULN) OR measured or calculated creatinine clearance (glomerular filtration rate \[GFR\] can also be used in place of creatinine or CrCl) ≥ 30 mL/min for participant with creatinine levels > 1.5 × institutional ULN

Creatinine clearance (CrCl) should be calculated per institutional standard
Total bilirubin ≤ 1.5 × ULN OR direct bilirubin ≤ ULN for participants with total bilirubin levels > 1.5 × ULN
Aspartate aminotransferase (AST) (serum glutamic oxaloacetic transaminase \[SGOT\]) and alanine aminotransferase (ALT) (serum glutamic pyruvate transaminase \[SGPT\]) ≤ 2.5 × ULN (≤ 5 × ULN for participants with liver metastases)
International normalized ratio (INR) OR prothrombin time (PT) ≤ 1.5 × ULN unless participant is receiving anticoagulant therapy as long as PT or partial thromboplastin time (PTT) is within therapeutic range of intended use of anticoagulants
Activated partial thromboplastin time (aPTT) ≤ 1.5 × ULN unless participant is receiving anticoagulant therapy as long as PT or PTT is within therapeutic range of intended use of anticoagulants
Cardiac (echocardiogram \[Echo\] or multi-gated acquisition scan \[MUGA\]) ejection fraction ≥ 40%

Exclusion Criteria:

Diagnosis of Richter Transformation
Clinically significant (symptomatic) central nervous system (CNS) involvement at time of study enrollment. Previously treated CNS disease is allowed if the participant is asymptomatic. Incidental findings including positive cerebral spinal fluid (CSF) studies are not exclusionary
Active infection and uncontrolled infection
Active HBV/hepatitis C virus (HCV) infection

Participants must have completed curative anti-viral therapy for HCV at least 4 weeks prior to study enrollment
Participants who are HBsAg positive are eligible if they have received HBV antiviral therapy for at least 4 weeks and have undetectable HBV viral load prior to study enrollment
Note: Participants should remain on anti-viral therapy throughout study intervention and follow local guidelines for HBV anti-viral therapy post completion of study intervention
HIV with a detectable viral load or a CD4 count ≤ 350 cells/µL at time of screening

Participants with HIV who do not meet the above criteria are eligible if they are on a stable antiretroviral therapy (ART) regimen (ART must not be strong CYP3A4 inducers) for at least 4 weeks prior to study entry and are compliant with ART are eligible
Patients with an AIDS defining opportunistic infection in the past 12 months prior to screening
Gastrointestinal dysfunction that may affect drug absorption (e.g., gastric bypass surgery, gastrectomy)
History or current evidence of any condition, therapy, or laboratory abnormality that might confound the results of the study, interfere with the participant's participation for the full duration of the study, or is not in the best interest of the participant to participate, in the opinion of the treating investigator
Corrected QT interval (QTc) prolongation (defined as a QTc > 450 msecs) or other significant electrocardiogram (ECG) abnormalities including second degree atrioventricular (AV) block type II, third degree AV block, or bradycardia (ventricular rate less than 50 beats/min)
Known allergy/sensitivity to nemtabrutinib or any of the excipients
Known prior progressive disease while on nemtabrutinib

NOTE: Refer to the investigator's brochure (IB) for details regarding prior recipients of nemtabrutinib
History of severe bleeding disorder defined as an ongoing congenital or acquired condition that leads to an increased likelihood of bleeding
History of a second malignancy

NOTE: The time requirement does not apply to participants who underwent successful definitive resection of basal cell carcinoma of the skin, squamous cell carcinoma of the skin, or carcinoma in situ, excluding carcinoma in situ of the bladder
A participant of childbearing potential (POCBP) who has a positive urine pregnancy test within 72 hours prior to study enrollment. If the urine test is positive or cannot be confirmed as negative, a serum pregnancy test will be required

Note: In the event that 72 hours have elapsed between the screening pregnancy test and the first dose of study treatment, another pregnancy test (urine or serum) must be performed and must be negative in order for participant to start receiving study medication
Need or anticipation of need for additional bridging therapy in addition to nemtabrutinib

Palliative radiation therapy for less than 2 weeks or the use of prednisone 30mg (or the prednisone equivalent) for a maximum of 5 days is allowed and is not exclusionary
Currently being treated with the following drugs:

P-gp substrates with a narrow therapeutic index
CYP3A strong inducers
CYP3A strong inhibitors
NOTE: A washout period of at least 5 times the half-life after the last dose of any of the above treatments is required for a participant to be eligible for study enrollment
Has received a live vaccine or live-attenuated vaccine within 30 days before the first dose of study intervention. Administration of inactivated vaccines are allowed
Is currently enrolled on another therapeutic clinical trial. Concurrent enrollment on another therapeutic clinical trial or any trial designed to impact the efficacy of anti-cancer therapy is prohibited
Has received an investigational agent or has used an investigational device within 4 weeks prior to study intervention administration
Has not adequately recovered after 4 weeks from major surgery or has ongoing surgical complications

Note: Biopsy and placement of central venous access devices are not considered major surgery
Has a history or current evidence of any condition, therapy, or laboratory abnormality or other circumstance that might confound the results of the study, interfere with the participant's participation for the full duration of the study, such that it is not in the best interest of the participant to participate, in the opinion of the treating investigator
Has known psychiatric or substance abuse disorders that would interfere with cooperation with the requirements of the trial
Any condition or history that the study investigator deems not in the best interest of the patient to participate

Study Design

Enrollment

20 participants

Anticipated

Intervention Model

Single group

Primary purpose

Treatment

Interventions and Outcome Measures

Arms

experimental: Treatment (nemtabrutinib, lisocabtagene maraleucel)

Patients receive nemtabrutinib PO daily on days 1-28 of each cycle (NOTE: nemtabrutinib is not given during lymphodepleting therapy). Cycles repeat every 28 days for up to 1 year after lisocabtagene maraleucel infusion in the absence of disease progression or unacceptable toxicity. Patients undergo leukapheresis 7 days after start of nemtabrutinib treatment. Patients receive SOC lymphodepleting therapy consisting of cyclophosphamide IV and fludarabine IV on approximately the 5th, 4th, and 3rd day prior to lisocabtagene maraleucel infusion. Patients then receive lisocabtagene maraleucel IV 36-96 hours after completion of SOC lymphodepleting therapy. Patients also undergo TTE or MUGA during screening, and PET/CT scans, bone marrow biopsy and aspiration, lymph node biopsy, and blood sample collection throughout the study.

Interventions

Nemtabrutinib

Given PO

Lisocabtagene Maraleucel

Given IV

Primary outcome measure

Complete response (CR) [ Time Frame: Up to 5 years after completion of study treatment ]

Central Contacts and Locations

Central contacts

Fred Hutch Immunotherapy Intake

206-606-4668 immunotherapy@fredhutch.org

Locations

Fred Hutch/University of Washington Cancer Consortium

Recruiting

Seattle, Washington, United States, 98109

Contacts

Fred Hutch Immunotherapy Intake

206-606-4668 immunotherapy@fredhutch.org

Principal Investigator:

Mazyar Shadman, MD, MPH

More Information

Sponsor

Fred Hutchinson Cancer Center

Last update posted

Aug 12, 2026

Last verified

May, 2026

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-08. This information was provided to ClinicalTrials.gov by Fred Hutchinson Cancer Center on 2026-08-12.