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

Phase 1
Recruiting
Conditions
Solid Tumor
Advanced Solid Tumor
Interventions
Registration Number
NCT05981703
Lead Sponsor
BeiGene
Brief 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.

Detailed Description

Not available

Recruitment & Eligibility

Status
RECRUITING
Sex
All
Target Recruitment
107
Inclusion Criteria
  1. Able to provide a signed and dated written informed consent prior to any study-specific procedures, sampling, or data collection.
  2. Eastern Cooperative Oncology Group (ECOG) Performance Status ≤ 1.
  3. 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).
  4. 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.
  5. ≥ 1 measurable lesion per RECIST v1.1.
  6. Able to provide an archived tumor tissue sample.
  7. Adequate organ function.
  8. 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 ≥ 180 days after the last dose of chemotherapy.
  9. 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.
Exclusion Criteria
  1. 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.
  2. Uncontrollable pleural effusion, pericardial effusion, or ascites requiring frequent drainage or medical intervention.
  3. Clinically significant bleeding from the gastrointestinal tract within 28 days before the first dose of study treatment(s).
  4. Active leptomeningeal disease or uncontrolled, untreated brain metastasis.
  5. Active autoimmune diseases or history of autoimmune diseases that may relapse
  6. 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).
  7. 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).
  8. History of interstitial lung disease, noninfectious pneumonitis, or uncontrolled lung diseases including pulmonary fibrosis, acute lung diseases.
  9. Uncontrolled diabetes.
  10. 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.

Study & Design

Study Type
INTERVENTIONAL
Study Design
SEQUENTIAL
Arm && Interventions
GroupInterventionDescription
Phase 1a: Dose EscalationBGB-26808Sequential cohorts of increasing dose levels of BGB-26808 will be evaluated as monotherapy and in combination with tislelizumab.
Phase 1a: Dose EscalationTislelizumabSequential cohorts of increasing dose levels of BGB-26808 will be evaluated as monotherapy and in combination with tislelizumab.
Phase 1b: Dose ExpansionBGB-26808Recommended doses for expansion (RDFEs) for BGB-26808 from Phase 1a in combination with tislelizumab plus chemotherapy will be evaluated.
Phase 1b: Dose ExpansionTislelizumabRecommended doses for expansion (RDFEs) for BGB-26808 from Phase 1a in combination with tislelizumab plus chemotherapy will be evaluated.
Phase 1b: Dose ExpansionChemotherapyRecommended doses for expansion (RDFEs) for BGB-26808 from Phase 1a in combination with tislelizumab plus chemotherapy will be evaluated.
Primary Outcome Measures
NameTimeMethod
Phase 1a: Number of Participants with Adverse Events (AEs) and Serious Adverse Events (SAEs)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

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.

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

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.

Phase 1a: Recommended Dose for Expansion (RDFE) of BGB-26808Approximately 1 month

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

Phase 1b: Overall Response Rate (ORR)Approximately 6 months

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.

Secondary Outcome Measures
NameTimeMethod
Phase 1a: ORRApproximately 6 months

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.

Phase 1a and 1b: Duration of Response (DOR)Approximately 9 months

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.

Phase 1a and 1b: Disease Control Rate (DCR)Approximately 6 months

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.

Phase 1a and 1b: Clinical Benefit Rate (CBR)Approximately 6 months

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.

Phase 1b: Progression Free Survival (PFS)Approximately 9 months

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.

Phase 1a: Maximum observed plasma concentration (Cmax) for BGB-26808Approximately 1 month
Phase 1a: Minimum observed plasma concentration (Cmin) for BGB-26808Approximately 6 months
Phase 1a: Time to maximum plasma concentration (Tmax) for BGB-26808Approximately 1 month

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

Phase 1a: Half-life (t1/2) for BGB-26808Approximately 1 month
Phase 1a: Area under the concentration-time curve (AUC) for BGB-26808Approximately 1 month
Phase 1a: Apparent clearance (CL/F) for BGB-26808Approximately 1 month
Phase 1a: Apparent volume of distribution (Vz/F) for BGB-26808Approximately 1 month
Phase 1a: Accumulation ratio for BGB-26808Approximately 1 month
Phase 1b: Plasma concentrations of BGB-26808Approximately 6 months
Phase 1b: Number of Participants with AEs and SAEsFrom 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

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

Trial Locations

Locations (23)

Yale University, Yale Cancer Center

🇺🇸

New Haven, Connecticut, United States

Sylvester Cancer Center, University of Miami

🇺🇸

Miami, Florida, United States

John Theurer Cancer Center Hackensack University Medical Center

🇺🇸

Hackensack, New Jersey, United States

Icahn School of Medicine At Mount Sinai

🇺🇸

New York, New York, United States

Providence Portland Medical Center

🇺🇸

Portland, Oregon, United States

The University of Texas Md Anderson Cancer Center

🇺🇸

Houston, Texas, United States

Southside Cancer Care

🇦🇺

Miranda, New South Wales, Australia

Macquarie University

🇦🇺

North Ryde, New South Wales, Australia

Icon Cancer Centre Kurralta Park

🇦🇺

Kurralta Park, South Australia, Australia

Linear Clinical Research

🇦🇺

Nedlands, Western Australia, Australia

The First Affiliated Hospital of Anhui Medical Universitygaoxin Branch

🇨🇳

Hefei, Anhui, China

Harbin Medical University Cancer Hospital

🇨🇳

Harbin, Heilongjiang, China

Tongji Hospital of Tongji Medical College Huazhong University of Science and Technology

🇨🇳

Wuhan, Hubei, China

Hubei Cancer Hospital

🇨🇳

Wuhan, Hubei, China

The First Hospital of China Medical University Hunnan Branch

🇨🇳

Shenyang, Liaoning, China

Jining No Peoples Hospital West Branch

🇨🇳

Jining, Shandong, China

Yantai Yuhuangding Hospital

🇨🇳

Yantai, Shandong, China

Shanghai East Hospital Branch Hospital

🇨🇳

Shanghai, Shanghai, China

Shanghai Pulmonary Hospital

🇨🇳

Shanghai, Shanghai, China

Sichuan Academy of Medical Sciences and Sichuan Provincial Peoples Hospital

🇨🇳

Chengdu, Sichuan, China

Hangzhou First Peoples Hospital

🇨🇳

Hangzhou, Zhejiang, China

Taizhou Hospital of Zhejiang Province (East)

🇨🇳

Taizhou, Zhejiang, China

Auckland City Hospital

🇳🇿

Auckland, New Zealand

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