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Advanced Solid TumorPhase 1NCT05981703

A Study Investigating BGB-26808 Alone or in Combination With Tislelizumab in Participants With Advanced Solid Tumors

A Phase 1 study testing BGB-26808, Tislelizumab and Chemotherapy in people with Advanced Solid Tumor and Solid Tumor, run by BeOne Medicines at 28 sites in 4 countries.

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, and nonrandomized dose escalation and dose expansion study to evaluate BGB-26808 as monotherapy or in combination with tislelizumab in participants with advanced solid tumors. The main purpose of this study is to explore the recommended dosing for BGB-26808. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Advanced Solid Tumor, Solid Tumor
What is being tested?
BGB-26808, Tislelizumab and Chemotherapy
Could I receive a placebo?
No, everyone receives an active treatment
How many people
337 participants
Where
28 sitesin 4 countries
Study dates
21 Sep 2023to 28 Feb 2029
Phase
Phase 1
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

  • Able to provide a signed and dated written informed consent prior to any study-specific procedures, sampling, or data collection.
  • Eastern Cooperative Oncology Group (ECOG) Performance Status ≤ 1.
  • Phase 1a: Participants with histologically or cytologically confirmed advanced, metastatic, and unresectable solid tumors that are immune-sensitive who have previously received standard systemic therapy, or for whom treatment is not available or not tolerated, or for whom treatment is determined not appropriate based on investigator's judgment and who have not received prior therapy targeting hematopoietic progenitor kinase 1 (HPK1).
  • Phase 1b: Participants with histologically confirmed locally advanced unresectable or metastatic tumor types and who have not had prior systemic treatment. Participants who received prior systemic therapy in a neo-adjuvant or adjuvant setting with curative intent for nonmetastatic disease must have experienced a disease-free interval of ≥ 6 months from the last dose of systemic therapy prior to the first dose of study treatments.
  • ≥ 1 measurable lesion per RECIST v1.1.
  • Able to provide an archived tumor tissue sample.
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  • Adequate organ function.
  • Females of childbearing potential must be willing to use a highly effective method of birth control for the duration of the study, and for ≥ 90 days after the last dose of BGB-26808, or for ≥ 120 days after the last dose of tislelizumab, or for up to ≥ 270 days after the last dose of chemotherapy.
  • Nonsterile males must be willing to use a highly effective method of birth control for the duration of the study treatment period and for ≥ 90 days after the last dose of BGB-26808, or for ≥ 120 days after the last dose of tislelizumab, or for ≥ 180 days after the last dose of chemotherapy.

Who cannot join

  • Prior treatment with anti-PD-1, anti-PD-L1, anti-PD-L2, anti-TIGIT, anti-CTLA4, or any other antibody or drug specifically targeting T-cell costimulation or checkpoint pathways.
  • Uncontrollable pleural effusion, pericardial effusion, or ascites requiring frequent drainage or medical intervention.
  • Clinically significant bleeding from the gastrointestinal tract within 28 days before the first dose of study treatment(s).
  • Active leptomeningeal disease or uncontrolled, untreated brain metastasis.
  • Active autoimmune diseases or history of autoimmune diseases that may relapse
  • Any malignancy ≤ 3 years before the first dose of study treatment(s) except for the specific cancer under investigation in this study and any locally recurring cancer that has been treated with curative intent (eg, resected basal or squamous cell skin cancer, superficial bladder cancer, or carcinoma in situ of the cervix or breast).
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  • Any condition that required systemic treatment with either corticosteroids (> 10 mg daily of prednisone or equivalent) or other immunosuppressive medication ≤ 14 days before the first dose of study treatment(s).
  • History of interstitial lung disease, noninfectious pneumonitis, or uncontrolled lung diseases including pulmonary fibrosis, acute lung diseases.
  • Uncontrolled diabetes.
  • Infection (including tuberculosis infection) requiring systemic (oral or intravenous) antibacterial, antifungal, or antiviral therapy ≤ 14 days before the first dose of study treatment(s).
  • Note: Other protocol defined Inclusion/Exclusion criteria may apply.

Trial locations and contacts

28 sites in 4 countries. Contact the study team or a site near you to ask about taking part.

28 sites in 4 countries

China12 sites, 10 recruiting
  • Sichuan Academy of Medical Sciences and Sichuan Provincial Peoples Hospital

    Chengdu, Sichuan, 610071

    Recruiting
  • Hangzhou First Peoples Hospital

    Hangzhou, Zhejiang, 310006

    Recruiting
  • Harbin Medical University Cancer Hospital

    Harbin, Heilongjiang, 150000

    Recruiting
  • The First Affiliated Hospital of Anhui Medical Universitygaoxin Branch

    Hefei, Anhui, 230022

    Recruiting
  • Jining No1 Peoples Hospital West Branch

    Jining, Shandong, 272000

    Recruiting
  • Shanghai East Hospital Branch Hospital

    Shanghai, Shanghai Municipality, 200123

    Recruiting
  • Shanghai Pulmonary Hospital

    Shanghai, Shanghai Municipality, 200433

    Completed
  • The First Hospital of China Medical University Hunnan Branch

    Shenyang, Liaoning, 110167

    Recruiting
  • Taizhou Hospital of Zhejiang Province (East)

    Taizhou, Zhejiang, 317004

    Completed
  • Hubei Cancer Hospital

    Wuhan, Hubei, 430079

    Recruiting
  • Tongji Hospital,Tongji Medical College of Hustsino French New City Branch

    Wuhan, Hubei, 430101

    Recruiting
  • Yantai Yuhuangding Hospital

    Yantai, Shandong, 264000

    Recruiting

Other trials in China

United States9 sites, 8 recruiting
  • University of Michigan Health System

    Ann Arbor, Michigan, 48109-5316

    Recruiting
  • City of Hope National Medical Center

    Duarte, California, 91010-3012

    Recruiting
  • John Theurer Cancer Center Hackensack University Medical Center

    Hackensack, New Jersey, 07601

    Recruiting
  • The University of Texas Md Anderson Cancer Center

    Houston, Texas, 77030-4009

    Recruiting
  • University of Southern California Norris Comprehensive

    Los Angeles, California, 90033

    Recruiting
  • Sylvester Cancer Center, University of Miami

    Miami, Florida, 33136

    Recruiting
  • Yale University Yale Cancer Center

    New Haven, Connecticut, 06520-8028

    Recruiting
  • Icahn School of Medicine At Mount Sinai

    New York, New York, 10029-6504

    Recruiting
  • Providence Portland Medical Center

    Portland, Oregon, 97213-2933

    Completed

Other trials in United States

Australia4 sites
  • Icon Cancer Centre Kurralta Park

    Kurralta Park, South Australia, SA 5037

    Active, not recruiting
  • Southside Cancer Care

    Miranda, New South Wales, NSW 2228

    Completed
  • Linear Clinical Research

    Nedlands, Western Australia, WA 6009

    Completed
  • Macquarie University

    North Ryde, New South Wales, NSW 2109

    Active, not recruiting

Other trials in Australia

New Zealand3 sites, 3 recruiting
  • Auckland City Hospital

    Auckland, 1023

    Recruiting
  • Harbour Cancer and Wellness

    Auckland, 1023

    Recruiting
  • Health New Zealand Te Whatu Ora Lakes Rotorua Hospital

    Rotorua, 3010

    Recruiting

Other trials in New Zealand

About this study

Official title: A Phase 1 Study Investigating the Safety, Tolerability, Pharmacokinetics, and Preliminary Antitumor Activity of HPK1 Inhibitor BGB-26808 Alone or in Combination With Anti-PD-1 Monoclonal Antibody Tislelizumab in Patients With Advanced Solid Tumors

This is an open-label, multicenter, and nonrandomized dose escalation and dose expansion study to evaluate BGB-26808 as monotherapy or in combination with tislelizumab in participants with advanced solid tumors. The main purpose of this study is to explore the recommended dosing for BGB-26808.

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
BGB-26808, Tislelizumab, Chemotherapy
Keywords
advanced solid tumor, BGB-26808, BGB-A317, Tislelizumab, PD1, HPK1

What participants receive

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

  • BGB-26808Drug

    Planned doses administered orally as a tablet daily.

  • TislelizumabDrug

    Also called BGB-A317

    Planned doses administered by intravenous infusion.

  • ChemotherapyDrug

    Administered in accordance with relevant local guidelines and/or prescribing information.

Study groups in NCT05981703
Study groupRoleWhat they receive
Phase 1a: Dose EscalationExperimentalSequential cohorts of increasing dose levels of BGB-26808 will be evaluated as monotherapy and in combination with tislelizumab.
Receives: Drug: BGB-26808; Drug: Tislelizumab
Phase 1b: Dose ExpansionExperimentalRecommended doses for expansion (RDFEs) for BGB-26808 from Phase 1a in combination with tislelizumab plus chemotherapy will be evaluated.
Receives: Drug: BGB-26808; Drug: Tislelizumab; Drug: Chemotherapy

What is being measured

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

  1. Phase 1a: Number of Participants with Adverse Events (AEs) and Serious Adverse Events (SAEs)

    Number of participants with AEs and SAEs, including findings from physical examinations, electrocardiograms (ECGs), laboratory assessments, and that meet protocol-defined dose-limiting toxicity criteria.

    Measured: From the first dose of study drug(s) to 90 days after the last dose or initiation of a new anticancer therapy, whichever occurs first; up to approximately 12 months

  2. Phase 1a: Maximum Tolerated Dose (MTD) or Maximum Administered Dose (MAD) of BGB-26808

    MTD is defined as the highest dose evaluated for which estimated toxicity rate is the closest to the target toxicity rate. MAD is defined as the highest dose administered if MTD is not reached.

    Measured: Approximately 1 month

  3. Phase 1a: Recommended Dose for Expansion (RDFE) of BGB-26808

    RDFE of BGB-26808 alone or in combination with tislelizumab will be determined based upon the MTD or MAD.

    Measured: Approximately 1 month

  4. Phase 1b: Overall Response Rate (ORR)

    ORR is defined as the percentage of participants who had confirmed complete response (CR) or partial response (PR) assessed by the investigator using Response Evaluation Criteria in Solid Tumors (RECIST) v1.1.

    Measured: Approximately 6 months

Secondary outcomes (10)
  1. Phase 1a: ORR

    ORR is defined as the percentage of participants who had confirmed complete response (CR) or partial response (PR) assessed by the investigator using RECIST v1.1.

    Measured: Approximately 6 months

  2. Phase 1a and 1b: Duration of Response (DOR)

    DOR is defined as the time from the first determination of an objective response per RECIST v1.1 until the first documentation of disease progression or death, whichever occurs first as assessed by the investigator.

    Measured: Approximately 9 months

  3. Phase 1a and 1b: Disease Control Rate (DCR)

    DCR is defined as the percentage of participants with best overall response of CR, PR, or stable disease. It will be summarized similarly as ORR as assessed by the investigator.

    Measured: Approximately 6 months

  4. Phase 1a and 1b: Clinical Benefit Rate (CBR)

    CBR is defined as the percentage of participants with best overall response of confirmed CR, PR, or stable disease lasting ≥ 24 weeks as assessed by investigator.

    Measured: Approximately 6 months

  5. Phase 1b: Progression Free Survival (PFS)

    PFS is defined as the time from the date of the first dose of study drug(s) to the date of the first documentation of progressive disease assessed by the investigator using RECIST v1.1 or death, whichever occurs first.

    Measured: Approximately 9 months

  6. Phase 1a and 1b: Plasma concentrations of BGB-26808

    Measured: Approximately 6 months

  7. Phase 1a and 1b: Maximum observed plasma concentration (Cmax) for BGB-26808

    Measured: Approximately 1 month

  8. Phase 1a and 1b: Time to maximum plasma concentration (Tmax) for BGB-26808

    Pharmacokinetic analysis for BGB-26808 concentrations, alone or in combination with tislelizumab. Single-dose and steady-state PK parameters.

    Measured: Approximately 1 month

  9. Phase 1a and 1b: Area under the concentration-time curve (AUC) for BGB-26808

    Measured: Approximately 1 month

  10. Phase 1b: Number of Participants with AEs and SAEs

    Number of participants with AEs and SAEs, including findings from physical examinations, ECGs, laboratory assessments, and that meet protocol-defined dose-limiting toxicity criteria.

    Measured: From the first dose of study drug(s) to 90 days after the last dose or initiation of a new anticancer therapy, whichever occurs first; up to approximately 12 months

Timeline

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

  1. First posted8 Aug 2023
  2. Study start21 Sep 2023
  3. Primary completion28 Feb 2029 (estimated)
  4. Study completion28 Feb 2029 (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 1
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Sequential
Masking
None (open label)
Enrolment
337 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05981703
Sponsor's protocol ID
BGB-A317-26808-101
Other IDs
CTR20240210
Status last verified
Sep 2026
First submitted
31 Jul 2023
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.

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing BGB-26808, Tislelizumab and Chemotherapy in people with Advanced Solid Tumor and Solid Tumor, run by BeOne Medicines at 28 sites in 4 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 9 inclusion and 11 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 28 sites in China, United States, Australia, New Zealand. 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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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?

Phase 1a: Number of Participants with Adverse Events (AEs) and Serious Adverse Events (SAEs) (time frame: From the first dose of study drug(s) to 90 days after the last dose or initiation of a new anticancer therapy, whichever occurs first; up to approximately 12 months). The study lists 4 primary outcomes in all. 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; AzTrials last refreshed its copy on 26 Oct 2026.

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