Chronic Lymphocytic LeukemiaPhase 3NCT06973187
A Study to Evaluate the Safety and Efficacy of Tacabrutideg (BGB-16673) Compared to Pirtobrutinib in Adults With Relapsed/Refractory Chronic Lymphocytic Leukemia or Small Lymphocytic Lymphoma
A Phase 3 study testing Tacabrutideg and Pirtobrutinib in people with Chronic Lymphocytic Leukemia and Small Lymphocytic Lymphoma, run by BeOne Medicines at 217 sites in 24 countries.
Trial summary
The purpose of this study is to evaluate the efficacy and safety of tacabrutideg alone compared with pirtobrutinib in patients with relapsed or refractory (R/R) chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (SLL) who had been previously treated with a covalent Bruton tyrosine kinase inhibitor… Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Chronic Lymphocytic Leukemia, Small Lymphocytic Lymphoma
- What is being tested?
- Tacabrutideg and Pirtobrutinib
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 500 participants
- Where
- 217 sitesin 24 countries
- Study dates
- 4 Sep 2025to 17 Apr 2028
- Phase
- Phase 3
- 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 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Confirmed diagnosis of CLL or SLL, requiring treatment, based on 2018 iwCLL criteria
- Previously received treatment for CLL/SLL with a covalent Bruton tyrosine kinase inhibitor (cBTKi). Patients should have disease relapsed after or refractory to at least 1 line of therapy including a cBTKi.
- Participants with SLL must have measurable disease by computed tomography/magnetic resonance imaging, defined as ≥ 1 lymph node > 1.5 cm in longest diameter and measurable in 2 perpendicular diameters.
Who cannot join
- Known prolymphocytic leukemia or history of, or currently suspected, Richter's transformation.
- History of known bleeding disorder such as hemophilia A, hemophilia B, von Willebrand disease, or history of spontaneous bleeding requiring blood transfusion or other medical intervention
- History of ischemic stroke or intracranial hemorrhage within 6 months before first dose of study drug
- Prior exposure to any Bruton tyrosine kinase (BTK) protein degraders or noncovalent Bruton tyrosine kinase inhibitor (ncBTKi).
- Current or history of central nervous system involvement including the brain, spinal cord, leptomeninges, and cerebrospinal fluid (as documented by imaging, cytology, or biopsy) by CLL/SLL
- NOTE: Other protocol defined Inclusion/Exclusion criteria may apply.
Trial locations and contacts
217 sites in 24 countries. Contact the study team or a site near you to ask about taking part.
217 sites in 24 countries
United States49 sites, 49 recruiting
- Recruiting
Our Lady of the Lake Hospital
Baton Rouge, Louisiana, 70808-4365
- Recruiting
Mary Bird Perkins Cancer Center
Baton Rouge, Louisiana, 70809-3738
- Recruiting
University of Alabama At Birmingham Hospital
Birmingham, Alabama, 35294-0004
- Recruiting
Dana Farber Cancer Institute
Boston, Massachusetts, 02215-5418
- Recruiting
University of North Carolina At Chapel Hill
Chapel Hill, North Carolina, 27514-4220
- Recruiting
Medical University of South Carolina
Charleston, South Carolina, 29402-0955
- Recruiting
Atrium Health Levine Cancer Institute (Lci)
Charlotte, North Carolina, 28204-2990
- Recruiting
University of Chicago Medical Center
Chicago, Illinois, 60637-1443
- Recruiting
Dayton Physician Network
Dayton, Ohio, 45415
- Recruiting
Karmanos Cancer Institute
Detroit, Michigan, 48201-2013
- Recruiting
Duke University Medical Center
Durham, North Carolina, 27705-3976
- Recruiting
Titan Health Partners Llc Dba Astera Cancer Care
East Brunswick, New Jersey, 08816-4096
- Recruiting
John Theurer Cancer Center Hackensack University Medical Center
Hackensack, New Jersey, 07601
- Recruiting
Md Anderson Cancer Center
Houston, Texas, 77030-3907
- Recruiting
Kaiser Permanente Southern California
Irvine, California, 92618-3734
- Recruiting
Mayo Clinic Jacksonville
Jacksonville, Florida, 32224-1865
- Recruiting
Cancer Specialists of North Florida
Jacksonville, Florida, 32256
- Recruiting
Gunderson Health System
La Crosse, Wisconsin, 54601-5467
- Recruiting
University of California San Diego (Ucsd) Moores Cancer Center
La Jolla, California, 92093-1503
- Recruiting
Cancer and Blood Specialty Clinic
Los Alamitos, California, 90720-3302
- Recruiting
UCLA Department of Medicine Hematologyoncology
Los Angeles, California, 90095-3075
- Recruiting
Mount Sinai Medical Center Braman Comprehensive Cancer Center
Miami, Florida, 33140
- Recruiting
Tennessee Oncology, Pllc Nashville
Nashville, Tennessee, 37203
- Recruiting
Ochsner Clinic Foundation
New Orleans, Louisiana, 70121-2429
- Recruiting
Columbia University Medical Center
New York, New York, 10032
- Recruiting
Weill Cornell Medical College Newyork Presbyterian Hospital
New York, New York, 10065-4870
- Recruiting
Memorial Sloan Kettering Cancer Center Mskcc
New York, New York, 10065-6800
- Recruiting
Christiana Care
Newark, Delaware, 19713-2055
- Recruiting
Kaiser Permanente Oakland Medical Center
Oakland, California, 94611
- Recruiting
Texas Oncology Palestine Cancer Center
Palestine, Texas, 75801-6981
- Recruiting
Stanford Cancer Institute
Palo Alto, California, 94304-2205
- Recruiting
Fox Chase Cancer Center
Philadelphia, Pennsylvania, 19111-2434
- Recruiting
Mayo Clinic Phoenix
Phoenix, Arizona, 85054-4502
- Recruiting
Blue Ridge Cancer Care (Oncology and Hematology Associates of Southwest Virginia)
Roanake, Virginia, 24014
- Recruiting
Mayo Clinic Rochester
Rochester, Minnesota, 55905-0001
- Recruiting
University of Rochester
Rochester, New York, 14642-0001
- Recruiting
Kaiser Permanente Roseville Medical Center
Roseville, California, 95661
- Recruiting
Kaiser Permanente San Francisco Medical Center Oncology
San Francisco, California, 94115
- Recruiting
Kaiser Permanente Santa Clara Medical Center Oncologyhematology
Santa Clara, California, 95051
- Recruiting
Fred Hutchinson Cancer Research Center
Seattle, Washington, 98109-4433
- Recruiting
Summit Cancer Centers
Spokane, Washington, 99208-1129
- Recruiting
Washington University School of Medicine
St Louis, Missouri, 63110-1010
- Recruiting
Northwest Medical Specialties
Tacoma, Washington, 98405
- Recruiting
Kaiser Permanente Northern California
Vallejo, California, 94589-2441
- Recruiting
Kaiser Permanente Walnut Creek Medical Center
Walnut Creek, California, 94596
- Recruiting
Medstar Georgetown University Hospital
Washington D.C., District of Columbia, 20007-2113
- Recruiting
Mission Cancer and Blood
Waukee, Iowa, 50263
- Recruiting
The University of Kansas Cancer Center
Westwood, Kansas, 66205-2003
- Recruiting
Atrium Health Wake Forest Baptist
Winston-Salem, North Carolina, 27157
China34 sites, 34 recruiting
- Recruiting
Peking Union Medical College Hospital
Beijing, Beijing Municipality, 100730
- Recruiting
Binzhou Medical University Hospital
Binzhou, Shandong, 256603
- Recruiting
The First Hospital of Jilin University
Changchun, Jilin, 130021
- Recruiting
Hunan Cancer Hospital
Changsha, Hunan, 410013
- Recruiting
Sichuan Academy of Medical Sciences and Sichuan Provincial Peoples Hospital
Chengdu, Sichuan, 610071
- Recruiting
The Second Hospital of Dalian Medical University
Dalian, Liaoning, 116023
- Recruiting
Dazhou Central Hospital
Dazhou, Sichuan, 635099
- Recruiting
Fujian Medical University Union Hospital
Fuzhou, Fujian, 350001
- Recruiting
Sun Yat Sen University Cancer Center
Guangzhou, Guangdong, 510060
- Recruiting
Guizhou Provincial Peoples Hospital
Guiyang, Guizhou, 550002
- Recruiting
The First Affiliated Hospital of Harbin Medical University
Harbin, Heilongjiang, 150007
- Recruiting
Jiangmen Central Hospital
Jiangmen, Guangdong, 529030
- Recruiting
First Affiliated Hospital of Kunming Medical University
Kunming, Yunnan, 650032
- Recruiting
The First Hospital of Lanzhou University
Lanzhou, Gansu, 730000
- Recruiting
The Affiliated Hospital of Southwest Medical University
Luzhou, Sichuan, 646099
- Recruiting
The Second Affiliated Hospital of Nanchang University
Nanchang, Jiangxi, 330006
- Recruiting
The First Affiliated Hospital of Guangxi Medical University
Nanning, Guangxi, 530021
- Recruiting
Affiliated Hospital of Nantong University
Nantong, Jiangsu, 201203
- Recruiting
The First Affiliated Hospital of Ningbo University
Ningbo, Zhejiang, 315010
- Recruiting
Renji Hospital Shanghai Jiao Tong University School of Medicine
Shanghai, Shanghai Municipality, 200000
- Recruiting
Shengjing Hospital of China Medical University
Shenyang, Liaoning, 110004
- Recruiting
The Fourth Hospital of Hebei Medical University East Branch
Shijiazhuang, Hebei, 050035
- Recruiting
The First Affiliated Hospital of Soochow University
Suzhou, Jiangsu, 215006
- Recruiting
Taian City Central Hospital
Taian, Shandong, 271099
- Recruiting
Shanxi Bethune Hospital
Taiyuan, Shanxi, 030032
- Recruiting
Institute of Hematology and Hospital of Blood Disease
Tianjin, Tianjin Municipality, 300020
- Recruiting
The First Affiliated Hospital of Wenzhou Medical University
Wenzhou, Zhejiang, 325000
- Recruiting
Union Hospital, Tongji Medical College, Huazhong University of Science and Technologychegu Branch
Wuhan, Hubei, 430056
- Recruiting
Wuxi Peoples Hospital
Wuxi, Jiangsu, 214023
- Recruiting
The Second Affiliated Hospital of Xian Jiaotong University
Xi'an, Shaanxi, 710004
- Recruiting
Qinghai University Affiliated Hospital
Xining, Qinghai, 810001
- Recruiting
Xuchang Central Hospitalluminghu Branch
Xuchang, Henan, 461000
- Recruiting
The Affiliated Hospital of Xuzhou Medical University
Xuzhou, Jiangsu, 221000
- Recruiting
Henan Cancer Hospital
Zhengzhou, Henan, 450000
Japan18 sites, 18 recruiting
- Recruiting
Tokyo Metropolitan Komagome Hospital
Bunkyoku, Tokyo, 113-8677
- Recruiting
Fukushima Medical University Hospital
Fukushima, Fukushima, 960-1295
- Recruiting
Hiroshima Red Cross Hospital and Atomic Bomb Survivors Hospital
Hiroshima, Hiroshima, 730-8619
- Recruiting
Dokkyo Medical University Saitama Medical Center
Koshigaya, Saitama, 503-8502
- Recruiting
Cancer Institute Hospital of Jfcr
Kotoku, Tokyo, 135-8550
- Recruiting
Kumamoto University Hospital
Kumamoto, Kumamoto, 860-8556
- Recruiting
Japanese Red Cross Kyoto Daini Hospital
Kyotoshi, Kyoto, 602-8026
- Recruiting
Matsuyama Red Cross Hospital
Matsuyama, Ehime, 790 8524
- Recruiting
Aichi Cancer Center Hospital Clinical Oncology
Nagoya, Aichi-ken, 464-8681
- Recruiting
Japanese Red Cross Aichi Medical Center Nagoya Daiichi Hospital
Nakamuraku, Aichi-ken, 453-8511
- Recruiting
Kochi Medical School Hospital
Nankoku, Kochi, 783-8505
- Recruiting
Oita Prefectural Hospital
Ōita, Oita Prefecture, 870-8511
- Recruiting
Okayama University Hospital
Okayama, Okayama-ken, 700-8558
- Recruiting
Osaka Metropolitan University Hospital
Osaka, Osaka, 545-8586
- Recruiting
Kindai University Hospital
Sakai, Osaka, 590-0197
- Recruiting
Aiiku Hospital
Sapporo, Hokkaido, 064-0804
- Recruiting
National Hospital Organization (Nho) Disaster Medical Center
Tachikawashi, Tokyo, 190-0014
- Recruiting
Yamagata University Hospital
Yamagata, Yamagata, 990-9585
Australia14 sites, 14 recruiting
- Recruiting
Flinders Medical Centre
Bedford PK, South Australia, SA 5042
- Recruiting
Pindara Private Hospital
Benowa, Queensland, QLD 4217
- Recruiting
Sunshine Coast Hospital and Health Service
Birtinya, Queensland, QLD 4575
- Recruiting
Concord Repatriation General Hospital
Concord, New South Wales, NSW 2139
- Recruiting
St Vincents Hospital Melbourne
Fitzroy, Victoria, VIC 3065
- Recruiting
Peninsula Private Hospital
Frankston, Victoria, VIC 3199
- Recruiting
Austin Health
Heidelberg, Victoria, VIC 3084
- Recruiting
St George Private Hospital
Kogarah, New South Wales, 2217
- Recruiting
Cabrini Hospital Malvern
Malvern, Victoria, VIC 3144
- Recruiting
Peter Maccallum Cancer Centre
Melbourne, Victoria, VIC 3000
- Recruiting
The Alfred Hospital
Melbourne, Victoria, VIC 3004
- Recruiting
Linear Clinical Research
Nedlands, Western Australia, WA 6009
- Recruiting
John Flynn Private Hospital
Tugun, Queensland, QLD 4224
- Recruiting
Westmead Private Hospital
Westmead, New South Wales, 2145
Germany9 sites, 9 recruiting
- Recruiting
St Josef Hospital Klinikum Der Ruhr Universitat Bochum
Bochum, 44791
- Recruiting
Universitatsklinikum Bonn
Bonn, 53127
- Recruiting
Uniklinik Koeln (Aoer)
Cologne, 50937
- Recruiting
Gemeinschaftspraxis Fur Hamatologie Und Onkologie Dortmund
Dortmund, 44309
- Recruiting
Stadtisches Klinikum Karlsruhe
Karlsruhe, 76133
- Recruiting
Mvz Fur Hamatologie Und Onkologie Lubeckgmbh
Lübeck, 23562
- Recruiting
Robert Bosch Krankenhaus, Abteilung Hamatologie, Onkologie Und Palliativmedizin
Stuttgart, 70376
- Recruiting
Universitaetsklinikum Ulm
Ulm, 89081
- Recruiting
Gemeinschaftspraxis Fuer Haematologie Und Onkologie Westerstede
Westerstede, 26655
Brazil8 sites, 8 recruiting
- Recruiting
Centro de Pesquisa Clinica Dom Bosco Ltda
Araçatuba, 16015-150
- Recruiting
Hospital Felicio Rocho
Belo Horizonte, 30110-068
- Recruiting
Ictr Instituto Do Cancer E Transplante de Curitiba
Curitiba, 80510-130
- Recruiting
Hospital de Clinicas de Goiania Ufg
Goiânia, 74605-020
- Recruiting
Inca Instituto Nacional de Cancer
Rio de Janeiro, 20231-050
- Recruiting
Ensino E Terapia de Inovacao Clinica Amo Etica
Salvador, 41950-640
- Recruiting
Hospital Nove de Julho Dasa
São Paulo, 01409-001
- Recruiting
Hcfmusp Hospital Das Clinicas Da Faculdade de Medicina Da Universidade de Sao Paulo
São Paulo, 05403-010
France8 sites, 8 recruiting
- Recruiting
Centre de Lutte Contre Le Cancer Institut Bergonie
Bordeaux, 33076
- Recruiting
Hopital Estaing
ClermontFerrand, 63100
- Recruiting
Centre Hospitalier Universitaire Nantes Hotel Dieu
Nantes, 44000
- Recruiting
Hopital Saint Louis
Paris, 75010
- Recruiting
Centre Henri Becquerel
Rouen, 76038
- Recruiting
Iuc Toulouse Oncopole
Toulouse, 31100
- Recruiting
Chu Tours Hopital Bretonneau
Tours, 37000
- Recruiting
Chu Nancy Hopital Brabois
VandoeuvrelesNancy, 54511
Poland8 sites, 8 recruiting
- Recruiting
Copernicus Podmiot Leczniczy Sp Z Oo Wojewodzkie Centrum Onkologii
Gdansk, 80-219
- Recruiting
Swietokrzyskie Centrum Onkologii Samodzielny Publiczny Zaklad Opieki Zdrowotnej W Kielcach
Kielce, 25-734
- Recruiting
Wojewodzkie Wielospecjalistyczne Centrum Onkologii I Traumatologii Im M Kopernika W Lodzi
Lodz, 93-513
- Recruiting
Uniwersytecki Szpital Kliniczny Nr 1 W Lublinie
Lublin, 20-081
- Recruiting
Szpital Kliniczny Mswia Z Warmisko Mazurskim Centrum Onkologii
Olsztyn, 10-228
- Recruiting
Wojewodzki Szpital Zespolony Im L Rydygiera W Toruniu
Torun, 87-100
- Recruiting
Narodowy Instytut Onkologii Im Marii Sklodowskiej Curie W Warszawie
Warsaw, 02-781
- Recruiting
Uniwersytecki Szpital Kliniczny Im Jana Mikulicza Radeckiego We Wroclawiu
Wroclaw, 50-367
Belgium7 sites, 7 recruiting
- Recruiting
Institut Jules Bordet
Anderlecht, 1070
- Recruiting
UZ GENT
Ghent, 9000
- Recruiting
Az Groeninge Campus Loofstraat
Kortrijk, 8500
- Recruiting
Chc Montlegia
Liège, 4000
- Recruiting
Chu de Liege
Liège, 4000
- Recruiting
Az Sint Maarten
Mechelen, 2800
- Recruiting
Chu Ucl Namur
Yvoir, 5530
Israel7 sites, 7 recruiting
- Recruiting
Bnai Zion Medical Center
Haifa, 31048
- Recruiting
Shaare Zedek Medical Center
Jerusalem, 9103102
- Recruiting
Hadassah University Hospital Ein Kerem
Jerusalem, 91120
- Recruiting
Meir Medical Center
KfarSava, 4428164
- Recruiting
Rabin Medical Center
Petah Tikva, 49100
- Recruiting
Sheba Medical Center
Ramat Gan, 5262100
- Recruiting
Sourasky Tel Aviv Medical Center
Tel Aviv, 6423906
Spain7 sites, 7 recruiting
- Recruiting
Ico Badalona
Badalona, 08916
- Recruiting
Hospital Universitario de Burgos
Burgos, 09006
- Recruiting
Hospital Universitario de Gran Canaria Dr Negrin
Las Palmas de Gran Canaria, 35010
- Recruiting
Hospital Universitario Fundacion Jimenez Diaz
Madrid, 28040
- Recruiting
Hospital Universitario Puerta de Hierro Majadahonda
Majadahonda, 28222
- Recruiting
Hospital Universitari Son Espases
Palma de Mallorca, 07120
- Recruiting
Hospital Universitario Virgen Del Rocio
Seville, 41013
Netherlands6 sites, 6 recruiting
- Recruiting
Albert Schweitzer Ziekenhuis
Dordrecht, 3318 AT
- Recruiting
Catharina Hospital
EJ Eindhoven, 5623
- Recruiting
Groene Hart Hospital
Gouda, 2803
- Recruiting
University of Medical Center Groningen (Umcg)
Groningen, 9713 GZ
- Recruiting
Canisius Wilhelmina Ziekenhuis
Nijmegen, 6532 SZ
- Recruiting
Universitair Medisch Centrum Utrecht
Utrecht, 3584 CX
South Korea6 sites, 6 recruiting
- Recruiting
Gyeongsang National University Hospital
Jinju, Gyeongsangnam-do, 52727
- Recruiting
The Catholic University of Korea, Seoul St Marys Hospital
SeochoGu, Seoul Teugbyeolsi, 06591
- Recruiting
Severance Hospital Yonsei University Health System
SeodaemunGu, Seoul Teugbyeolsi, 03722
- Recruiting
Pusan National University Hospital
Seogu, Busan Gwang'Yeogsi, 49241
- Recruiting
Seoul National University Bundang Hospital
Seongnam-si, Gyeonggi-do, 13620
- Recruiting
Seoul National University Hospital
Seoul, Seoul Teugbyeolsi, 03080
United Kingdom6 sites, 6 recruiting
- Recruiting
University Hospitals Sussex Nhs Foundation Trust
Brighton, BN2 5BE
- Recruiting
Kent and Canterbury Hospital
Canterbury, CT1 3NG
- Recruiting
Norfolk and Norwich University Hospitals Nhs Foundation Trust
Norwich, NR4 7UY
- Recruiting
Oxford University Hospitals Nhs Foundation Trust
Oxford, OX42PG
- Recruiting
Spire Leeds Healthcare Spire Leeds Hospital
Roundhay, LS8 1NT
- Recruiting
Salisbury Foundation Trust
Salisbury, SP2 8BJ
Austria5 sites, 5 recruiting
- Recruiting
Medical University Graz
Graz, 8036
- Recruiting
Medizinische Universitatsklinik Innsbruck
Innsbruck, 6020
- Recruiting
Ordensklinikum Linz Gmbh Elisabethinen
Linz, 4020
- Recruiting
Universitatsklinik Fur Innere Medizin Iii Universitatsklinikum Der Pmu Landeskrankenhaus Salzburg
Salzburg, 5020
- Recruiting
Uk St Poelten
Sankt Pölten, 3100
Argentina4 sites, 4 recruiting
- Recruiting
FUNDALEU
Caba, CP1114
- Recruiting
Sanatorio Allende
Córdoba, X5000BFB
- Recruiting
Centro Oncologico de Integracion Regional (Coir)
Mendoza, M5500
- Recruiting
Hospital Privado de Rosario
Rosario, 60430-277
Italy4 sites, 4 recruiting
- Recruiting
Policlinico Sorsola Malpighi, Aou Di Bologna
Bologna, 40138
- Recruiting
Ospedale San Raffaele
Milan, 20132
- Recruiting
Azienda Socio Sanitaria Territoriale Grande Ospedale Metropolitano Niguarda
Milan, 20162
- Recruiting
Azienda Ospedaliera Di Padova
Padova, 35128
Mexico4 sites, 4 recruiting
- Recruiting
Centro de Investigacion Clinica Gramel
México, 3720
- Recruiting
Christus Latam Hub Center of Excellence and Innovation Sc
Monterrey, 64000
- Recruiting
Centro de Investigacion Clinica de Oaxaca
Oaxaca City, 68020
- Recruiting
Centro Hemato Oncologico Privado de Toluca
Toluca, 50120
New Zealand3 sites, 3 recruiting
- Recruiting
North Shore Hospital
Auckland, 0622
- Recruiting
Tauranga Hospital
Tauranga, 3112
- Recruiting
Wellington Regional Hospital (Ccdhb)
Wellington, 6021
Romania3 sites, 3 recruiting
- Recruiting
Coltea Clinical Hospital
Bucharest, 30171
- Recruiting
Institutul Oncologic Prof Dr Ion Chiricuta Cluj Napoca
ClujNapoca, 400015
- Recruiting
Institutul Regional de Oncologie Iasi
Iași, 700483
Singapore2 sites, 2 recruiting
- Recruiting
Singapore General Hospital
Singapore, 168582
- Recruiting
Tan Tock Seng Hospital Haematology
Singapore, 308433
Sweden2 sites, 2 recruiting
- Recruiting
Sahlgrenska Universitetssjukhuset
Gothenburg, 413 46
- Recruiting
Karolinska Universitetssjukhuset Solna
Stockholm, 171 76
Switzerland2 sites, 2 recruiting
- Recruiting
Inselspital Bern (Inselspital, Universitatsspital Bern)
Bern, 3010
- Recruiting
Universitatsspital Zurich
Zurich, 8091
Puerto Rico1 site, 1 recruiting
- Recruiting
Auxilio Mutuo Cancer Center
San Juan, 00917
About this study
Official title: A Phase 3, Open-Label, Randomized Study to Evaluate the Safety and Efficacy of BGB-16673 Compared to Pirtobrutinib in Patients With Relapsed/Refractory Chronic Lymphocytic Leukemia or Small Lymphocytic Lymphoma
The purpose of this study is to evaluate the efficacy and safety of tacabrutideg alone compared with pirtobrutinib in patients with relapsed or refractory (R/R) chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (SLL) who had been previously treated with a covalent Bruton tyrosine kinase inhibitor (cBTKi).
Read the detailed description
Our company, previously known as BeiGene, is now officially BeOne Medicines. Because some of our older studies were sponsored under the name BeiGene, you may see both names used for this study on this website.
- Being tested
- Tacabrutideg, Pirtobrutinib
- Keywords
- Noncovalent Bruton tyrosine kinase inhibitor, Bruton tyrosine kinase-targeted protein degrader
- 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.
TacabrutidegDrug
Also called BGB-16673
Tacabrutideg will be administered orally
PirtobrutinibDrug
Also called Jaypirca
Pirtobrutinib will be administered orally
| Study group | Role | What they receive |
|---|---|---|
| Arm A: Tacabrutideg | Experimental | Participants will receive tacabrutideg orally. Receives: Drug: Tacabrutideg |
| Arm B: Pirtobrutinib | Active comparator | Participants will receive pirtobrutinib orally. Receives: Drug: Pirtobrutinib |
What is being measured
The primary outcome is the main question the study is designed to answer.
Progression-Free Survival (PFS) per Independent Review Committee (IRC)
PFS is defined as time from the date of randomization to the date of first disease progression or death, whichever occurs first, as determined by IRC using modified 2018 International Workshop on Chronic Lymphocytic Leukemia (iwCLL) criteria for participants with chronic lymphocytic leukemia (CLL) and Lugano classification for participants with small lymphocytic lymphoma (SLL).
Measured: Up to approximately 3 years
Secondary outcomes (8)
Overall Survival (OS)
OS is defined as the time from the date of randomization to the date of death due to any cause.
Measured: Up to approximately 3 years
PFS per Investigator (INV)
PFS per INV is defined as time from the date of randomization to the date of first disease progression or death, whichever occurs first, as determined by investigator using modified 2018 International Workshop on Chronic Lymphocytic Leukemia (iwCLL) criteria for participants with CLL and Lugano classification for participants with SLL.
Measured: Up to approximately 3 years
Overall Response Rate (ORR) per IRC and INV
ORR is defined as the percentage of participants with a best overall response of complete response, complete response with incomplete bone marrow recovery, nodular partial remission, or partial response, as assessed by the investigator and IRC using modified 2018 iwCLL criteria for patients with CLL and Lugano classification for patients with SLL.
Measured: Up to approximately 3 years
Rate of Partial Response with Lymphocytosis (PR-L) or Higher per IRC and INV
The rate of PR-L or higher is defined as the percentage of participants with a best overall response of complete response, complete response with incomplete bone marrow recovery, nodular partial remission, partial response, or PR-L.
Measured: Up to approximately 3 years
Duration of Response (DOR) per IRC and INV
DOR is defined as the time from initial response to disease progression or death, whichever occurs first.
Measured: Up to approximately 3 years
Time to Next Anti-CLL/SLL Treatment (TTNT)
TTNT is defined as the time from the date of randomization to the date of next anti-CLL/SLL treatment.
Measured: Up to approximately 3 years
Number of Participants with Adverse Events (AEs)
Number of participants with treatment-emergent adverse events (TEAEs) and serious adverse events (SAEs), including laboratory abnormalities.
Measured: Up to approximately 3 years
Change from Baseline in European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire EORTC IL409
EORTC IL409 consists of a set of 19 questions derived from the EORTC quality of life questionnaire core 30 (QLQ-C30) and its CLL module CLL17. The EORTC IL409 includes questions on global health status (GHS)/quality of life, physical functioning, role functioning, physical condition/fatigue, and symptom burden.Higher scores in GHS and functional scales and lower scores in symptom scales indicate better health-related quality of life.
Measured: Baseline and up to approximately 3 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted15 May 2025
- Study start4 Sep 2025
- Primary completion17 Apr 2028 (estimated)
- Study completion17 Apr 2028 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Chronic Lymphocytic LeukemiaStudies of the same condition, open and under way.
- More trials run by BeOne MedicinesThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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 3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 500 participants (estimated)
Sponsor and investigators
- Lead sponsor
- BeOne Medicines
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Study Director, Study director, BeOne Medicines
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06973187
- Sponsor's protocol ID
- BGB-16673-304
- Other IDs
- 2025-522860-34-00, 2025
- Status last verified
- Sep 2026
- First submitted
- 7 May 2025
- Last updated
- 28 Sep 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- Yes: BeOne shares data on completed studies responsibly and provides qualified scientific and medical researchers access to data and supporting documentation for clinical trials in dossiers for medicines and indications after submission and approval in the United States, China, and Europe. Clinical trials supporting subsequent local approvals, new indications, or combination products are eligible for sharing once corresponding regulatory approvals are achieved. BeOne shares data only when permitted by applicable data privacy and security laws and regulations, when it is feasible to do so without compromising the privacy of study participants, and other considerations. Qualified researchers with appropriate competencies who are engaged in novel scientific research may submit a request for participant-level data with a research proposal for BeOne review. Research teams must include a biostatistician and sign a Data Sharing Agreement prior to receiving access to clinical trial data.
Study at a glance
From the registry record, last updated by the sponsor on 28 Sep 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase 3, Open-Label, Randomized Study to Evaluate the Safety and Efficacy of BGB-16673 Compared to Pirtobrutinib in Patients With Relapsed/Refractory Chronic Lymphocytic Leukemia or Small Lymphocytic Lymphoma
- ClinicalTrials.gov ID
- NCT06973187
- Acronym / sponsor ID
- BGB-16673-304
- Keywords
- Noncovalent Bruton tyrosine kinase inhibitor, Bruton tyrosine kinase-targeted protein degrader
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 500 participants (estimated)
- Lead sponsor
- BeOne MedicinesIndustry (pharma, biotech, devices)
- Study start
- 4 Sep 2025 (actual)
- Primary completion
- 17 Apr 2028 (estimated)
- Study completion
- 17 Apr 2028 (estimated)
- First posted
- 15 May 2025 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of this study is to evaluate the efficacy and safety of tacabrutideg alone compared with pirtobrutinib in patients with relapsed or refractory (R/R) chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (SLL) who had been previously treated with a covalent Bruton tyrosine kinase inhibitor (cBTKi).
Detailed description
Our company, previously known as BeiGene, is now officially BeOne Medicines. Because some of our older studies were sponsored under the name BeiGene, you may see both names used for this study on this website.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Arm A: Tacabrutideg | Experimental | Drug: TacabrutidegParticipants will receive tacabrutideg orally. |
| Arm B: Pirtobrutinib | Active comparator | Drug: PirtobrutinibParticipants will receive pirtobrutinib orally. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- Confirmed diagnosis of CLL or SLL, requiring treatment, based on 2018 iwCLL criteria
- Previously received treatment for CLL/SLL with a covalent Bruton tyrosine kinase inhibitor (cBTKi). Patients should have disease relapsed after or refractory to at least 1 line of therapy including a cBTKi.
- Participants with SLL must have measurable disease by computed tomography/magnetic resonance imaging, defined as ≥ 1 lymph node > 1.5 cm in longest diameter and measurable in 2 perpendicular diameters.
Key exclusion criteria (6 listed)
- Known prolymphocytic leukemia or history of, or currently suspected, Richter's transformation.
- History of known bleeding disorder such as hemophilia A, hemophilia B, von Willebrand disease, or history of spontaneous bleeding requiring blood transfusion or other medical intervention
- History of ischemic stroke or intracranial hemorrhage within 6 months before first dose of study drug
- Prior exposure to any Bruton tyrosine kinase (BTK) protein degraders or noncovalent Bruton tyrosine kinase inhibitor (ncBTKi).
- Current or history of central nervous system involvement including the brain, spinal cord, leptomeninges, and cerebrospinal fluid (as documented by imaging, cytology, or biopsy) by CLL/SLL
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| TacabrutidegAlso: BGB-16673Tacabrutideg will be administered orally | Drug | Arm A: Tacabrutideg |
| PirtobrutinibAlso: JaypircaPirtobrutinib will be administered orally | Drug | Arm B: Pirtobrutinib |
Primary outcome
Progression-Free Survival (PFS) per Independent Review Committee (IRC)
Time frame: Up to approximately 3 years
PFS is defined as time from the date of randomization to the date of first disease progression or death, whichever occurs first, as determined by IRC using modified 2018 International Workshop on Chronic Lymphocytic Leukemia (iwCLL) criteria for participants with chronic lymphocytic leukemia (CLL) and Lugano classification for participants with small lymphocytic lymphoma (SLL).
8 secondary outcomes
Overall Survival (OS)
Time frame: Up to approximately 3 years
PFS per Investigator (INV)
Time frame: Up to approximately 3 years
Overall Response Rate (ORR) per IRC and INV
Time frame: Up to approximately 3 years
Rate of Partial Response with Lymphocytosis (PR-L) or Higher per IRC and INV
Time frame: Up to approximately 3 years
Duration of Response (DOR) per IRC and INV
Time frame: Up to approximately 3 years
Time to Next Anti-CLL/SLL Treatment (TTNT)
Time frame: Up to approximately 3 years
Number of Participants with Adverse Events (AEs)
Time frame: Up to approximately 3 years
Change from Baseline in European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire EORTC IL409
Time frame: Baseline and up to approximately 3 years
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 28 Sep 2026.
- Individual participant dataSharing planned: Yes. BeOne shares data on completed studies responsibly and provides qualified scientific and medical researchers access to data and supporting documentation for clinical trials in dossiers for medicines and indications after submission and approval in the United States, China, and Europe. Clinical trials supporting subsequent local approvals, new indications, or combination products are eligible for sharing once corresponding regulatory approvals are achieved. BeOne shares data only when permitted by applicable data privacy and security laws and regulations, when it is feasible to do so without compromising the privacy of study participants, and other considerations. Qualified researchers with appropriate competencies who are engaged in novel scientific research may submit a request for participant-level data with a research proposal for BeOne review. Research teams must include a biostatistician and sign a Data Sharing Agreement prior to receiving access to clinical trial data.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Study Director study director
BeOne Medicines
217 sites in 24 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing Tacabrutideg and Pirtobrutinib in people with Chronic Lymphocytic Leukemia and Small Lymphocytic Lymphoma, run by BeOne Medicines at 217 sites in 24 countries.
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 3 inclusion and 6 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 28 Sep 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 217 sites in United States, China, Japan, Australia, Germany and 19 more countries. 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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
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 Study Director (1-877-828-5568, clinicaltrials@beonemed.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Progression-Free Survival (PFS) per Independent Review Committee (IRC) (time frame: Up to approximately 3 years). 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 28 Sep 2026.