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BGB-15025 Alone and in Combination With Anti-PD-1 Monoclonal Antibody Tislelizumab in Participants With Advanced Solid Tumors

A Phase 1 Study Investigating the Safety, Tolerability, Pharmacokinetics, and Preliminary Antitumor Activity of HPK1 Inhibitor BGB-15025 Alone and in Combination With Anti-PD-1 Monoclonal Antibody Tislelizumab in Patients With Advanced Solid Tumors

Status
Active, not recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04649385
Enrollment
157
Registered
2020-12-02
Start date
2021-03-04
Completion date
2026-05-16
Last updated
2026-02-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Advanced Solid Tumor

Brief summary

The primary objective of this study is to assess the safety and tolerability of BGB-15025 alone and in combination with tislelizumab; and to determine the maximum tolerated dose (MTD) or maximum administered dose (MAD) and recommended Phase 2 doses (RP2D) of BGB-15025 alone and in combination with tislelizumab in participants with advanced solid tumors.

Interventions

Administered orally once or twice daily (QD or BID)

DRUGTislelizumab

Administered 200 mg intravenous (IV) infusion

Sponsors

BeiGene
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Key Inclusion Criteria: 1. Phase 1a (dose escalation): Participants with histologically or cytologically confirmed advanced, metastatic, and unresectable solid tumors who have previously received standard systemic therapy or for whom treatment is not available, not tolerated or refused, and who have not received prior therapy targeting HPK1 2. Phase 1b (dose expansion): Participant with histologically or cytologically confirmed advanced, metastatic, and unresectable solid tumors, including non-small cell lung cancer, esophageal cancer or gastric/Gastroesophageal junction cancer (other solid tumors may be included) who have progressed following systemic anticancer therapies or have no prior systemic treatment for advanced disease 3. At least 1 measurable lesion as defined per RECIST 1.1. 4. Eastern Cooperative Oncology Group (ECOG) Performance Status ≤ 1 5. Adequate organ function as indicated by the following laboratory values up to first dose of study treatment: Hemoglobin≥ 90 g/L, Absolute neutrophil count ≥ 1.5 x 109/L , Serum total bilirubin ≤ 1.5 x ULN (\< 3 x ULN for participants with Gilbert syndrome ), AST and ALT≤ 2.5 x ULN Key

Exclusion criteria

1. Active leptomeningeal disease or uncontrolled and untreated brain metastasis. 2. Active autoimmune diseases or history of autoimmune diseases that may relapse 3. Any active malignancy ≤ 2 years before the first dose of study treatment except for the specific cancer under investigation in this study and any locally recurring cancer that has been treated with curative intent 4. 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 5. History of interstitial lung disease, noninfectious pneumonitis, or uncontrolled lung diseases including but not limited to pulmonary fibrosis, acute lung diseases, etc. NOTE: Other protocol defined Inclusion/

Design outcomes

Primary

MeasureTime frameDescription
RDFE of BGB-15025 in combination with tislelizumabUp to 3 yearsThe highest dose evaluated for which the estimated toxicity rate is closest to the target toxicity rate of 30%
Phase 1b: Overall Response Rate (ORR) as assessed by the investigatorUp to 2 years
Phase 1a: Number of participants with dose limiting toxicities (DLTs)Up to 3 YearsParticipants will be considered evaluable for DLTs if they 1) received ≥ 80% of each scheduled study treatment administration during the DLT assessment window and/or 2) experienced a DLT.
Phase 1a: Number of Participants Experiencing Adverse Events (AEs)Up to 4 Years
Phase 1a: Number of Participants Experiencing Serious Adverse Events (SAEs)Up to 4 years
The maximum tolerated dose (MTD) of BGB-15025Up to 3 YearsThe highest dose evaluated for which the estimated toxicity rate is closest to the target toxicity rate of 30%
Recommended Doses for Expansion (RDFE) of BGB-15025 monotherapyUp to 3 yearsThe highest dose evaluated for which the estimated toxicity rate is closest to the target toxicity rate of 30%

Secondary

MeasureTime frameDescription
Phase 1b: Number of Participants Experiencing Serious Adverse Events (SAEs)Up to 3 years
Phase 1b: Plasma Concentrations of BGB-15025Predose up to 8 hours postdose
Phase 1b: Plasma Concentrations of the metabolitePredose up to 8 hours postdose
Phase 1a: Minimum observed plasma concentration (Cmin) of BGB-15025Predose up to 8 hours postdose
Phase 1a: Time to maximum plasma concentration (Tmax) of BGB-15025Predose up to 8 hours postdose
Phase 1a: Half-life of (t1/2) of BGB-15025Predose up to 8 hours postdose
Phase 1a: Overall Response Rate (ORR) as assessed by the investigatorUp to 3 years
Duration Of Response (DOR) as assessed by the investigatorUp to 3 years
Disease Control Rate (DCR) as assessed by the investigatorUp to 3 years
Phase 1a: Maximum observed plasma concentration (Cmax) of BGB-15025Predose up to 8 hours postdose
Phase 1a: Area under the concentration-time curve (AUC) of BGB-15025Predose up to 8 hours postdose
Phase 1b: Number of participants with dose limiting toxicities (DLTs)Up to 1 yearParticipants will be considered evaluable for DLTs if they 1) received ≥ 80% of each scheduled study treatment administration during the DLT assessment window and/or 2) experienced a DLT.
Phase 1a: Apparent clearance (CL/F) of BGB-15025Predose up to 8 hours postdose
Phase 1a: Apparent volume of distribution (Vz/F) of BGB-15025Predose up to 8 hours postdose
Phase 1a: Accumulation Ratio for Cmax of BGB-15025Predose up to 8 hours postdose
Phase 1a: Accumulation Ratio for AUC of BGB-15025Predose up to 8 hours postdose
Phase 1a: Metabolite to parent ratio for BGB-15025 and its metabolitePredose up to 8 hours postdose
Phase 1b: Number of Participants Experiencing Adverse Events (AEs)Up to 3 years

Countries

Australia, China, New Zealand, South Korea, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 21, 2026