Study of Surzebiclimab (BGB-A425) and Alcestobart (LBL-007) in Combination With Tislelizumab in Advanced Solid Tumors
Phase 1-2 Study Investigating Safety, Tolerability, Pharmacokinetics and Preliminary Antitumor Activity of Various Combinations of BGB-A425 and LBL-007 With Tislelizumab in Patients With Advanced Solid Tumors
3 other identifiers
interventional
147
6 countries
40
Brief Summary
This was an open-label, multicenter, nonrandomized Phase 1 and 2 clinical trial evaluating various combinations of surzebiclimab (BGB-A425) and/or alcestobart (LBL-007) with tislelizumab.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_1
Started Nov 2018
Longer than P75 for phase_1
40 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
October 17, 2018
CompletedStudy Start
First participant enrolled
November 13, 2018
CompletedFirst Posted
Study publicly available on registry
November 16, 2018
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 6, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
February 6, 2025
CompletedResults Posted
Study results publicly available
April 2, 2026
CompletedApril 2, 2026
March 1, 2026
6.2 years
October 17, 2018
January 30, 2026
March 13, 2026
Conditions
Outcome Measures
Primary Outcomes (8)
Phase 1: Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)
An Adverse Event (AE) was defined as any unfavorable and unintended sign, symptom, or disease associated with the use of study drugs, whether considered related to study drugs or not. TEAE was an AE that has an onset date or a worsening in severity from baseline on or after the first dose of study drug up to 30 days following study drug discontinuation or initiation of the first new systemic anticancer therapy, whichever occurred first. An SAE was any untoward medical occurrence that, at any dose, resulted in death, was life-threatening, required hospitalization or prolongation of existing hospitalization, resulted in disability, was a congenital anomaly or was considered a medically significant. Severity of AEs was assessed according to National Cancer Institute Common Toxicity Criteria for Adverse Events (NCI-CTCAE) v.5.0, which consists of: Grade 1 Mild; Grade 2 Moderate; Grade 3: Severe; Grade 4: Life-threatening; Grade 5: Death due to AE.
Up to 30 days after last dose of study drug (maximum treatment duration: up to 32.7 months)
Phase 1: Maximum Tolerated Dose (MTD) or Maximum Administered Dose (MAD) of Surzebiclimab in Combination With Tislelizumab
The MAD was defined as the highest dose administered, where all dose levels were tolerated during dose escalation. The MTD was not reached in Phase 1, therefore the MAD was reported.
Up to 28 days
Phase 1: Recommended Phase 2 Dose (RP2D) of Surzebiclimab in Combination With Tislelizumab
The RP2D or recommended dose for expansion of the combination treatment was determined based upon the MTD or MAD, and also considered the long-term tolerability, PK, efficacy, and any other relevant data as available.
Up to 28 days
Phase 2 (Safety Lead-In): Number of Participants With TEAEs and SAEs
An AE was defined as any unfavorable and unintended sign, symptom, or disease associated with the use of study drugs, whether considered related to study drugs or not. TEAE was an AE that has an onset date or a worsening in severity from baseline on or after the first dose of study drug up to 30 days following study drug discontinuation or initiation of the first new systemic anticancer therapy, whichever occurred first. An SAE was any untoward medical occurrence that, at any dose, resulted in death, was life-threatening, required hospitalization or prolongation of existing hospitalization, resulted in disability, was a congenital anomaly or was considered a medically significant. Severity of AEs was assessed according to NCI-CTCAE v.5.0, which consists of: Grade 1 Mild; Grade 2 Moderate; Grade 3: Severe; Grade 4: Life-threatening; Grade 5: Death due to AE.
Up to 30 days after last dose of study drug (maximum duration of treatment: up to 19.6 months in Cohort A and up to 21.5 months in Cohort B)
Phase 2 (Safety Lead-In): MTD or MAD of Alcestobart in Combination With Tislelizumab
The MAD was defined as the highest dose administered, where all dose levels were tolerated during dose escalation. The MTD was not reached in Phase 2, therefore the MAD was reported.
Up to 21 days
Phase 2 (Safety Lead-In): MTD or MAD of Alcestobart in Combination With Surzebiclimab and Tislelizumab
The MAD was defined as the highest dose administered, where all dose levels were tolerated during dose escalation. The MTD was not reached in Phase 2, therefore the MAD was reported.
Up to 21 days
Phase 2 (Safety Lead-In): RP2D of Alcestobart in Combination With Surzebiclimab and Tislelizumab
The RP2D or recommended dose for expansion of the combination treatment was determined based upon the MTD or MAD, and also considered the long-term tolerability, PK, efficacy, and any other relevant data as available.
Up to 21 days
Phase 2 (Dose Expansion): Overall Response Rate (ORR)
ORR was defined as the percentage of participants who had complete response (CR) or partial response (PR). Per Response Evaluation Criteria in Solid Tumors (RECIST) version (v)1.1., CR was defined as disappearance of all target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to less than (\<) 10 millimeters (mm). PR was defined as at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters.
Maximum time on study: Cohort 1: up to 31.3 months, Cohort 2: up to 32.0 months, Cohort 4: up to11.3 months, Cohort 5: up to 15.9 months
Secondary Outcomes (39)
Phase 1: Overall Response Rate (ORR)
Maximum time on study: up to 57.5 months
Phase 2 (Safety Lead- In): Overall Response Rate (ORR)
Maximum time on study: Cohort A: up to 22.1 months; Cohort B: up to 21.5 months
Phase 1: Disease Control Rate (DCR)
Maximum time on study: up to 57.5 months
Phase 2 (Safety Lead-In): Disease Control Rate (DCR)
Maximum time on study: Cohort A: up to 22.1 months; Cohort B: up to 21.5 months
Phase 2 (Dose Expansion): Disease Control Rate (DCR)
Maximum time on study: Cohort 1: up to 31.3 months, Cohort 2: up to 32.0 months, Cohort 4: up to 11.3 months, Cohort 5: up to 15.9 months
- +34 more secondary outcomes
Study Arms (20)
Phase 1 (Dose Escalation): Surzebiclimab 2 Milligrams (mg) + Tislelizumab
EXPERIMENTALParticipants received surzebiclimab 2 mg intravenous (IV) infusion on day 1 of each cycle. In the first cycle, tislelizumab 200 mg was administered intravenously on Day 8. If tolerated, participants received surzebiclimab 2 mg along with tislelizumab sequentially on Day 29 and every 21 days (i.e., once every 21 days) thereafter until they were no longer considered to receive clinical benefit, unacceptable toxicity, or withdrawal of informed consent. Cycle 1 consisted of 28 days, and each cycle from Cycle 2 onwards consisted of 21 days.
Phase 1 (Dose Escalation): Surzebiclimab 6 mg + Tislelizumab
EXPERIMENTALParticipants received surzebiclimab 6 mg IV infusion on day 1 of each cycle. In the first cycle, tislelizumab 200 mg was administered intravenously on Day 8. If tolerated, participants received surzebiclimab 6 mg along with tislelizumab sequentially on Day 29 and every 21 days (i.e., once every 21 days) thereafter until they were no longer considered to receive clinical benefit, unacceptable toxicity, or withdrawal of informed consent. Cycle 1 consisted of 28 days, and each cycle from Cycle 2 onwards consisted of 21 days.
Phase 1 (Dose Escalation): Surzebiclimab 20 mg + Tislelizumab
EXPERIMENTALParticipants received surzebiclimab 20 mg IV infusion on day 1 of each cycle. In the first cycle, tislelizumab 200 mg was administered intravenously on Day 8. If tolerated, participants received surzebiclimab 20 mg along with tislelizumab sequentially on Day 29 and every 21 days (i.e., once every 21 days) thereafter until they were no longer considered to receive clinical benefit, unacceptable toxicity, or withdrawal of informed consent. Cycle 1 consisted of 28 days, and each cycle from Cycle 2 onwards consisted of 21 days.
Phase 1 (Dose Escalation): Surzebiclimab 60 mg + Tislelizumab
EXPERIMENTALParticipants received surzebiclimab 60 mg IV infusion on day 1 of each cycle. In the first cycle, tislelizumab 200 mg was administered intravenously on Day 8. If tolerated, participants received surzebiclimab 60 mg along with tislelizumab sequentially on Day 29 and every 21 days (i.e., once every 21 days) thereafter until they were no longer considered to receive clinical benefit, unacceptable toxicity, or withdrawal of informed consent. Cycle 1 consisted of 28 days, and each cycle from Cycle 2 onwards consisted of 21 days.
Phase 1 (Dose Escalation): Surzebiclimab 200 mg + Tislelizumab
EXPERIMENTALParticipants received surzebiclimab 200 mg IV infusion on day 1 of each cycle. In the first cycle, tislelizumab 200 mg was administered intravenously on Day 8. If tolerated, participants received surzebiclimab 200 mg along with tislelizumab sequentially on Day 29 and every 21 days (i.e., once every 21 days) thereafter until they were no longer considered to receive clinical benefit, unacceptable toxicity, or withdrawal of informed consent. Cycle 1 consisted of 28 days, and each cycle from Cycle 2 onwards consisted of 21 days.
Phase 1 (Dose Escalation): Surzebiclimab 400 mg + Tislelizumab
EXPERIMENTALParticipants received surzebiclimab 400 mg IV infusion on day 1 of each cycle. In the first cycle, tislelizumab 200 mg was administered intravenously on Day 8. If tolerated, participants received surzebiclimab 400 mg along with tislelizumab sequentially on Day 29 and every 21 days (i.e., once every 21 days) thereafter, until they were no longer considered to receive clinical benefit, unacceptable toxicity, or withdrawal of informed consent. Cycle 1 consisted of 28 days, and each cycle from Cycle 2 onwards consisted of 21 days.
Phase 1 (Dose Escalation): Surzebiclimab 800 mg + Tislelizumab
EXPERIMENTALParticipants received surzebiclimab 800 mg IV infusion on day 1 of each cycle. In the first cycle, tislelizumab 200 mg was administered intravenously on Day 8. If tolerated, participants received surzebiclimab 800 mg along with tislelizumab sequentially on Day 29 and every 21 days (i.e., once every 21 days) thereafter until they were no longer considered to receive clinical benefit, unacceptable toxicity, or withdrawal of informed consent. Cycle 1 consisted of 28 days, and each cycle from Cycle 2 onwards consisted of 21 days.
Phase 1 (Dose Escalation): Surzebiclimab 1600 mg + Tislelizumab
EXPERIMENTALParticipants received surzebiclimab 1600 mg IV infusion on day 1 of each cycle. In the first cycle, tislelizumab 200 mg was administered intravenously on Day 8. If tolerated, participants received surzebiclimab 400 mg along with tislelizumab sequentially on Day 29 and every 21 days (i.e., once every 21 days) thereafter until they were no longer considered to receive clinical benefit, unacceptable toxicity, or withdrawal of informed consent. Cycle 1 consisted of 28 days, and each cycle from Cycle 2 onwards consisted of 21 days.
Phase 1 (Dose Escalation): Surzebiclimab 60 mg
EXPERIMENTALParticipants received one dose of surzebiclimab 60 mg IV infusion on Day 1 of Cycle 1 and discontinued the study treatment. Cycle 1 consisted of 28 days.
Phase 1 (Dose Escalation): Surzebiclimab 1600 mg
EXPERIMENTALParticipants received one dose of surzebiclimab 1600 mg IV infusion on Day 1 of Cycle 1 and discontinued the study treatment. Cycle 1 consisted of 28 days.
Phase 2 (Safety Lead-In): Cohort A: Alcestobart 300 mg + Tislelizumab
EXPERIMENTALParticipants received alcestobart 300 mg IV infusion on day 1 of each cycle along with tislelizumab 200 mg IV once every 21 days until they were no longer considered to receive clinical benefit, unacceptable toxicity, or withdrawal of informed consent. Each cycle consisted of 21 days.
Phase 2 (Safety Lead-In): Cohort A: Alcestobart 600 mg + Tislelizumab
EXPERIMENTALParticipants received alcestobart 600 mg IV infusion on day 1 of each cycle along with tislelizumab 200 mg IV once every 21 days until they were no longer considered to receive clinical benefit, unacceptable toxicity, or withdrawal of informed consent. Each cycle consisted of 21 days.
Phase 2 (Safety Lead-In): Cohort A: Alcestobart 1200 mg + Tislelizumab
EXPERIMENTALParticipants received alcestobart 1200 mg IV infusion on day 1 of each cycle along with tislelizumab 200 mg IV once every 21 days until they were no longer considered to receive clinical benefit, unacceptable toxicity, or withdrawal of informed consent. Each cycle consisted of 21 days.
Phase 2 (Safety Lead-In): Cohort B: Alcestobart 300 mg + BGB-A425 + Tislelizumab
EXPERIMENTALParticipants received alcestobart 300 mg IV infusion on day 1 of each cycle along with surzebiclimab 600 mg IV and tislelizumab 200 mg IV once every 21 days until they were no longer considered to receive clinical benefit, unacceptable toxicity, or withdrawal of informed consent. Each cycle consisted of 21 days.
Phase 2 (Safety Lead-In): Cohort B: Alcestobart 600 mg + Surzebiclimab + Tislelizumab
EXPERIMENTALParticipants received alcestobart 600 mg IV infusion on day 1 of each cycle along with surzebiclimab 600 mg IV and tislelizumab 200 mg IV once every 21 days until they were no longer considered to receive clinical benefit, unacceptable toxicity, or withdrawal of informed consent. Each cycle consisted of 21 days.
Phase 2 (Safety Lead-In): Cohort B: Alcestobart 900 mg + Surzebiclimab + Tislelizumab
EXPERIMENTALParticipants received alcestobart 900 mg IV infusion on day 1 of each cycle along with surzebiclimab 600 mg IV and tislelizumab 200 mg IV once every 21 days until they were no longer considered to receive clinical benefit, unacceptable toxicity, or withdrawal of informed consent. Each cycle consisted of 21 days.
Phase 2 (Dose Expansion): Cohort 1: HNSCC: Surzebiclimab 600 mg + Tislelizumab
EXPERIMENTALParticipants with head and neck squamous cell carcinoma (HNSCC) received surzebiclimab 600 mg IV infusion on day 1 of each cycle along with tislelizumab 200 mg IV once every 21 days until they were no longer considered to receive clinical benefit, unacceptable toxicity, or withdrawal of informed consent. Each cycle consisted of 21 days.
Phase 2 (Dose Expansion): Cohort 2: NSCLC: Surzebiclimab 600 mg + Tislelizumab
EXPERIMENTALParticipants with non-small cell lung cancer (NSCLC) received surzebiclimab 600 mg IV infusion on day 1 of each cycle along with tislelizumab 200 mg IV once every 21 days until they were no longer considered to receive clinical benefit, unacceptable toxicity, or withdrawal of informed consent. Each cycle consisted of 21 days.
Phase 2 (Dose Expansion): Cohort 4: HNSCC Surzebiclimab 600 mg + Alcestobart 600 mg + Tislelizumab
EXPERIMENTALParticipants with HNSCC received surzebiclimab 600 mg IV infusion on day 1 of each cycle along with alcestobart 600 mg IV and tislelizumab 200 mg IV once every 21 days until they were no longer considered to receive clinical benefit, unacceptable toxicity, or withdrawal of informed consent. Each cycle consisted of 21 days.
Phase 2 (Dose Expansion): Cohort 5: NSCLC: Surzebiclimab 600 mg + Alcestobart 600 mg + Tislelizumab
EXPERIMENTALParticipants with NSCLC received surzebiclimab 600 mg IV infusion on day 1 of each cycle along with alcestobart 600 mg IV and tislelizumab 200 mg IV once every 21 days until they were no longer considered to receive clinical benefit, unacceptable toxicity, or withdrawal of informed consent. Each cycle consisted of 21 days.
Interventions
Humanized, IgG4-variant monoclonal antibody against PD-1
Humanized immunoglobulin G1 (IgG1)-variant monoclonal antibody against TIM-3
Human anti LAG-3 antibody
Eligibility Criteria
You may qualify if:
- Participants were aged \>=18 years.
- Adequate organ function.
- Eastern Cooperative Oncology Group (ECOG) performance status \<=1.
- Must have been able to provide a recently obtained archival tumor tissue or fresh tumor biopsy.
- The phase 1 dose escalation and phase 2 safety lead-in enrolled participants with histologically/cytologically confirmed advanced/metastatic solid tumors who had previously received standard systemic therapy per local guidelines, unless it was not available, not tolerated or determined not appropriate based on investigators judgement, and had at least 1 evaluable lesion per Response Evaluation Criteria in Solid Tumors (RECIST) v1.1.
- The phase 2 dose expansion enrolled participants with recurrent/metastatic HNSCC (Cohorts 1 and 4) and advanced/metastatic NSCLC (Cohorts 2 and 5), with disease progression that occurred \>=10 weeks from the initiation of anti-PD-1/PD-L1 treatment for locally advanced or metastatic disease and had at least 1 measurable lesion outside of the central nervous system per RECIST v1.1.
You may not qualify if:
- A history of severe hypersensitivity reactions to other monoclonal antibodies.
- Active autoimmune disease or a history of autoimmune diseases that might relapse or a history of life-threatening toxicity related to prior immune therapy.
- Any condition that required systemic treatment with either corticosteroids or other immunosuppressive medication \<=14 days before administration of study drug.
- A history of interstitial lung disease, noninfectious pneumonitis or uncontrolled lung diseases.
- Prior therapy targeting TIM-3 and/or LAG-3.
- The phase 2 dose expansion NSCLC cohorts excluded participants with known sensitizing epidermal growth factor receptor (EGFR) mutation, v-raf murine sarcoma viral oncogene homolog B1 (BRAF) mutation, anaplastic lymphoma kinase (ALK) fusion, or c-ros oncogene 1 (ROS1) fusion.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- BeiGenelead
Study Sites (40)
Chao Family Comprehensive Cancer Center
Orange, California, 92868-3201, United States
University of Colorado Cancer Center
Aurora, Colorado, 80045-2517, United States
University of Chicago Medical Center
Chicago, Illinois, 60637-1443, United States
University of Kentucky Markey Cancer Center
Lexington, Kentucky, 40536-7001, United States
Weill Cornell Medical College Newyork Presbyterian Hospital
New York, New York, 10065-4870, United States
University of North Carolina At Chapel Hill
Chapel Hill, North Carolina, 27514-4220, United States
Fox Chase Cancer Center
Philadelphia, Pennsylvania, 19111-2434, United States
The University of Texas Md Anderson Cancer Center
Houston, Texas, 77030-4009, United States
Ut Health San Antonio Mays Cancer Center
San Antonio, Texas, 78229-4427, United States
University of Virginia
Charlottesville, Virginia, 22908-0817, United States
Schar Cancer Institute
Fairfax, Virginia, 22031-4867, United States
Sydney Southwest Private Hospital
Liverpool, New South Wales, NSW 2170, Australia
Sunshine Coast Hospital and Health Service
Birtinya, Queensland, QLD 4575, Australia
Gold Coast University Hospital
Southport, Queensland, QLD 4215, Australia
Lyell McEwin Hospital
Elizabeth Vale, South Australia, SA 5112, Australia
Calvary North Adelaide Hospital
North Adelaide, South Australia, SA 5006, Australia
Box Hill Hospital
Box Hill, Victoria, VIC 3128, Australia
Cabrini Research and Education Institute
Malvern, Victoria, VIC 3144, Australia
Peter Maccallum Cancer Centre
Melbourne, Victoria, VIC 3000, Australia
Western Health Sunshine Hospital
St Albans, Victoria, VIC 3021, Australia
Hollywood Private Hospital
Nedlands, Western Australia, WA 6009, Australia
Linear Clinical Research
Nedlands, Western Australia, WA 6009, Australia
Centre de Lutte Contre Le Cancer Institut Bergonie
Bordeaux, 33000, France
Centre de Lutte Contre Le Cancer Francois Baclesse
Caen, 14000, France
Institut Curie Paris
Paris, 75005, France
Irccs Azienda Ospedaliero Universitaria Bologna
Bologna, 40138, Italy
Fondazione Irccs Istituto Nazionale Dei Tumori
Milan, 20133, Italy
Istituto Di Candiolo Irccs
Torino, 10060, Italy
Chungbuk National University Hospital
SeowonGu CheongjuSi, Chungcheongbukdo, 28644, South Korea
The Catholic University of Korea, St Vincents Hospital
PaldalGu SuwonSi, Gyeonggi-do, 16247, South Korea
Gachon University Gil Medical Center
NamdongGu, Incheon Gwang'Yeogsi, 21565, South Korea
The Catholic University of Korea, Seoul St Marys Hospital
SeochoGu, Seoul Teugbyeolsi, 06591, South Korea
Severance Hospital Yonsei University Health System
SeodaemunGu, Seoul Teugbyeolsi, 03722, South Korea
Asan Medical Center
SongpaGu, Seoul Teugbyeolsi, 05505, South Korea
Ulsan University Hospital
Donggu, Ulsan Gwang'Yeogsi, 44033, South Korea
Ajou University Hospital
Suwon, 16499, South Korea
Institut Catala Doncologia
Barcelona, 08908, Spain
Hospital Clinico San Carlos
Madrid, 28040, Spain
Hospital Universitario Hm Madrid Sanchinarro
Madrid, 28050, Spain
Hospital Universitario Virgen Del Rocio
Seville, 41013, Spain
MeSH Terms
Interventions
Limitations and Caveats
Based on the interim analysis of Cohorts 1, 2, 4, 5 in dose expansion, sponsor decided not to further investigate the combinations in RCC and to not investigate alcestobart (LBL-007), double or triple treatment combination in PD-1 resistant NSCLC and HNSCC. Hence, Phase 2 (Dose Expansion) Cohorts 3, 6 and 7 were planned, but not initiated based on sponsor's decision.
Results Point of Contact
- Title
- Study Director
- Organization
- BeiGene
Study Officials
- STUDY DIRECTOR
Study Director
BeiGene
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- OTHER
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Masking Details
- Open Label
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
October 17, 2018
First Posted
November 16, 2018
Study Start
November 13, 2018
Primary Completion
February 6, 2025
Study Completion
February 6, 2025
Last Updated
April 2, 2026
Results First Posted
April 2, 2026
Record last verified: 2026-03
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP, CSR
- Time Frame
- See plan description
- Access Criteria
- See plan description
BeiGene 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. BeiGene 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 BeiGene review. Research teams must include a biostatistician and sign a Data Sharing Agreement prior to receiving access to clinical trial data.