New BTK-Degrader cocktail takes on Hard-to-Treat blood cancers
NCT ID NCT06634589
First seen Jun 27, 2026 · Last updated Sep 11, 2026 · Updated 7 times
Summary
This study is testing a new oral drug called BGB-16673, which breaks down a protein that helps cancer cells grow, in combination with other cancer drugs. It is for people with B-cell cancers (like certain lymphomas) that have come back or stopped responding to treatment. The trial will enroll about 80 participants and will first check safety and the right dose, then look at whether the tumors shrink.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- BGB-16673 (a BTK-degrader) taken orally, combined with other drugs such as sonrotoclax, zanubrutinib, mosunetuzumab, glofitamab, or obinutuzumab
- What this could lead to
- If successful, this could point toward a new treatment option for people with B-cell cancers that have stopped responding to standard therapies.
- What could go wrong
- This is an early (phase 1b/2) and small (80 participants) trial focused on safety and dosing, so it is too soon to know if the combinations will work. Side effects from the drug combinations are possible and will be closely monitored.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 1/2
Runs two stages together: safety and dose first, then whether the treatment works.
- Participants
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About 80 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Nov 2024
- Expected to finish
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Dec 2029
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Key Inclusion Criteria: * Must sign the informed consent form (ICF) and be capable of giving written informed consent, which includes compliance with the requirements and restrictions listed in the ICF * Confirmed diagnosis of a R/R B-cell malignancy * Protocol-defined measurable disease * Stable Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 to 2 * Adequate organ function * Female participants of childbearing potential must be willing to use a highly effective method of birth control and refrain from egg donation for the duration of the study and for ≥ 7 days after the last dose of sonrotoclax, 30 days after the last dose of tacabrutideg or zanubrutinib, 60 days after the last dose of glofitamab, or 90 days after the last dose of mosunetuzumab. A negative urine or serum pregnancy test result must be provided 10-14 days before the first dose of study treatment * Nonsterile male participants must be willing to use a highly effective method of birth control and refrain from sperm donation for the duration of the study and for ≥ 7 days after the last dose of sonrotoclax, 30 days after the last dose of tacabrutideg or zanubrutinib, 60 days after the last dose of glofitamab, or 90 days after the last dose of mosunetuzumab * Substudies 1, 3, and 4 Inclusion Criterion: * Adequate renal function as indicated by estimated glomerular filtration rate (eGFR) of ≥ 50 mL/min * Substudy 2 Inclusion Criteria: * Bruton tyrosine kinase (BTK) inhibitor-naive, or previously received treatment with a covalent BTK inhibitor and discontinued for reasons other than clinical progression * Adequate renal function as indicated by eGFR of ≥ 30 mL/min Key Exclusion Criteria: * Treatment-naive B-cell malignancies * Unable to comply with the requirements of the protocol * Active leptomeningeal disease or uncontrolled, untreated brain metastasis * Any malignancy ≤ 2 years before first dose of study treatment except for the specific cancer under investigation in this study or any locally recurring cancer that has been treated curatively * Autologous stem cell transplant ≤ 3 months prior to screening or chimeric antigen T-cell therapy ≤ 3 months prior to screening * Prior invasive fungal infection, except if participant agrees to receive secondary antifungal prophylaxis during the entire treatment period * Substudies 1 and 2: Prior allogeneic stem cell transplant with active graft-versus-host disease (GVHD), or requiring immunosuppressive drugs for treatment of GVHD, or who have taken calcineurin inhibitors within 4 weeks prior to consent * Participants who have a history of severe allergic reactions or hypersensitivity to the active ingredient and excipients of tacabrutideg, sonrotoclax, zanubrutinib, mosunetuzumab, or glofitamab * Substudy 1 Exclusion Criterion: * Prior treatment with a B-cell lymphoma-2 (Bcl-2) inhibitor (with exception for participants who relapsed ≥ 24 months after completion of a full course of a prior Bcl-2 inhibitor containing regimen) * Substudy 2 Exclusion Criterion: * Participants who discontinued prior zanubrutinib treatment due to intolerance * Substudies 3 and 4 Exclusion Criteria: * Prior exposure to a CD20 x CD3 T-cell engager antibody treatment * All participants with a prior allogeneic stem cell transplant * Participants with known contraindications to azole antifungal agents, including hypersensitivity reactions Note: Other protocol defined Inclusion/Exclusion criteria may apply.
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Genom att skicka in godkänner du våra Användarvillkor
Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The study's own enquiry address
This study publishes an address for enquiries. See it below .
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The places running it
49 sites in 8 countries. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Show contact details
Enter your email to view the contact information for this study.
Genom att skicka in godkänner du våra Användarvillkor
Study contacts
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Contact
Email: •••••@•••••
Locations
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Auckland City Hospital
RECRUITINGAuckland, 1023, New Zealand
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Azienda Ospedaliera Universitaria Policlinico Santorsola Malpighi
RECRUITINGBologna, 40138, Italy
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Azienda Socio Sanitaria Territoriale Grande Ospedale Metropolitano Niguarda
RECRUITINGMilan, 20162, Italy
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Centroricerche Cliniche Di Verona Srl
RECRUITINGVerona, 37134, Italy
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Columbia University Medical Center
RECRUITINGNew York, New York, 10032, United States
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Ensino E Terapia de Inovacao Clinica Amo Etica
RECRUITINGSalvador, 41950-640, Brazil
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Fox Chase Cancer Center
RECRUITINGPhiladelphia, Pennsylvania, 19111-2434, United States
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Fujian Medical University Union Hospital
RECRUITINGFuzhou, Fujian, 350001, China
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Fundacao Faculdade Regional de Medicina de Sao Jose Do Rio Preto
RECRUITINGSão José do Rio Preto, 15090-000, Brazil
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Hospital Sirio Libanes Brasilia
RECRUITINGBrasília, 70200-730, Brazil
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Huntsman Cancer Institute
RECRUITINGSalt Lake City, Utah, 84112-5550, United States
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Icahn School of Medicine At Mount Sinai
RECRUITINGNew York, New York, 10029-6504, United States
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Istituto Clinico Humanitas
RECRUITINGRozzano, 20089, Italy
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Istituto Nazionale Tumori Fondazione G Pascale
RECRUITINGNaples, 80131, Italy
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Linear Clinical Research
RECRUITINGNedlands, Western Australia, WA 6009, Australia
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Mater Cancer Care Centre
RECRUITINGSouth Brisbane, Queensland, QLD 4101, Australia
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Mayo Clinic Jacksonville
RECRUITINGJacksonville, Florida, 32224-1865, United States
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Mayo Clinic Phoenix
RECRUITINGPhoenix, Arizona, 85054-4502, United States
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Mayo Clinic Rochester
RECRUITINGRochester, Minnesota, 55905-0001, United States
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Medical College of Wisconsin
RECRUITINGMilwaukee, Wisconsin, 53226-3522, United States
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Medizinische Universitaetsklinik
RECRUITINGTübingen, 72076, Germany
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Memorial Sloan Kettering Cancer Center Mskcc
RECRUITINGNew York, New York, 10065-6800, United States
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Moffitt Cancer Center
RECRUITINGTampa, Florida, 33612-9496, United States
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Monash Health
RECRUITINGClayton, Victoria, VIC 3168, Australia
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Narodowy Instytut Onkologii Im Marii Sklodowskiej Curie W Warszawie
RECRUITINGWarsaw, 02-781, Poland
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North Shore Hospital
RECRUITINGAuckland, 0622, New Zealand
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Peter Maccallum Cancer Centre
RECRUITINGMelbourne, Victoria, VIC 3000, Australia
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Sociedade Beneficente Israelita Brasileira Hospital Albert Einstein
RECRUITINGSão Paulo, 05652-900, Brazil
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St George Hospital
RECRUITINGKogarah, New South Wales, NSW 2217, Australia
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Sun Yat Sen University Cancer Center
RECRUITINGGuangzhou, Guangdong, 510060, China
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Szpital Kliniczny Mswia Z Warmisko Mazurskim Centrum Onkologii
RECRUITINGOlsztyn, 10-228, Poland
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Szpital Wojewodzki W Opolu Sp Z Oo Oddzia Hematologii I Onkologii Hematologicznej
RECRUITINGOpole, 45-061, Poland
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The Alfred Hospital
RECRUITINGMelbourne, Victoria, VIC 3004, Australia
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The First Affiliated Hospital of Soochow University
RECRUITINGSuzhou, Jiangsu, 215006, China
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The First Affiliated Hospital of Wenzhou Medical University
RECRUITINGWenzhou, Zhejiang, 325000, China
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The First Affiliated Hospital, Zhejiang University School of Medicinechengzhan
RECRUITINGHangzhou, Zhejiang, 310002, China
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The University of Kansas Cancer Center
RECRUITINGWestwood, Kansas, 66205-2003, United States
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The University of Texas Md Anderson Cancer Center
RECRUITINGHouston, Texas, 77030-4009, United States
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Universitaetsklinikum Ulm
RECRUITINGUlm, 89081, Germany
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Universitatsklinikum Carl Gustav Carus An Der Technischen Universitat Dresden
RECRUITINGDresden, 01307, Germany
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Universitatsklinikum Jena Klinik Fur Innere Medizin Ii
RECRUITINGJena, 07747, Germany
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Universitatsklinikum Schleswig Holstein Campus Kiel
RECRUITINGKiel, 24105, Germany
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University of Rochester
RECRUITINGRochester, New York, 14642-0001, United States
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University of Southern California Norris Comprehensive
RECRUITINGLos Angeles, California, 90033, United States
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University of Wisconsin
RECRUITINGMadison, Wisconsin, 53792-0001, United States
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Uniwersytecki Szpital Kliniczny Nr 1 W Lublinie
RECRUITINGLublin, 20-081, Poland
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Uniwersyteckie Centrum Kliniczne
RECRUITINGGdansk, 80-214, Poland
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Washington University School of Medicine
RECRUITINGSt Louis, Missouri, 63110-1010, United States
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Weill Cornell Medical College Newyork Presbyterian Hospital
RECRUITINGNew York, New York, 10065-4870, United States
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Other studies related to the condition(s) this trial covers.
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- Tumor profiling may unlock targeted drug options for pediatric cancers
- Can a single injection create Cancer-Fighting cells inside the body?
- Can antibody infusions outperform antibiotics in shielding CAR-T patients from infections?
- Engineered immune cells take aim at tough childhood leukemia
- Two-Drug combo aims to tackle Hard-to-Treat hodgkin lymphoma