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Study Investigating Safety, Tolerability, Pharmacokinetics (PK) and Antitumor Activities of Anti-PD-1 (Programmed Death-1) Monoclonal Antibody

Phase I/II Study Investigating Safety, Tolerability, Pharmacokinetics and Preliminary Antitumor Activities of Anti-PD-1 Monoclonal Antibody BGB-A317 in Chinese Patients With Advanced Solid Tumors

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04068519
Enrollment
300
Registered
2019-08-28
Start date
2016-12-28
Completion date
2020-05-31
Last updated
2024-10-26

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

Conditions

Advanced Solid Tumors

Brief summary

This was a dose verification, pharmacokinetic (PK) assessment of products derived from two manufacturing processes and scales (500L-FMP and 2000L-FMP; FMP: Final Manufacturing Process) and indication expansion clinical study of monoclonal antibody conducted in Chinese subjects with advanced solid tumors, with a purpose of exploring the safety, tolerability, pharmacokinetics and preliminary efficacy.

Interventions

DRUGTislelizumab

Administered intravenously

Sponsors

BeiGene
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

Key Inclusion Criteria: 1. Participants must have histologically or cytologically confirmed advanced or metastatic tumors (unresectable), have had progression or intolerability since last standard anti-tumor treatment, or have no standard treatment or have refused standard therapy. 2. Participants must be able to provide archival tumor tissues (paraffin blocks or at least 10 unstained tumor specimen slides). 3. Participants must have at least one measurable lesion as defined per RECIST criterion version 1.1. 4. Participant must have adequate organ function. 5. Females are eligible to participate in the study if they are: a) Non-childbearing potential (that is, physiologically incapable of becoming pregnant) who: * Has had hysterectomy * Has had bilateral oophorectomy * Has had bilateral tubal ligation or are post-menopausal (total cessation of menses for ≥1 year) b) Childbearing potential: * Must be willing to use a highly effective method of birth control for the duration of the study, and for at least 120 days after the last dose of tislelizumab, and have a negative urine or serum pregnancy test within 7 days of the first dose of study drug. 6. Non-sterile males must be willing to use a highly effective method of birth control for the duration of the study. Key

Exclusion criteria

1. History of severe hypersensitivity reactions to other monoclonal antibodies (mAbs). 2. Prior malignancy active within the previous 2 years except for the tumor under investigation in this trial, cured or locally curable cancers, such as basal or squamous cell skin cancer, superficial bladder cancer or carcinoma in situ of the cervix or breast. 3. Prior therapies targeting PD-1 or PD-L1. Active brain or leptomeningeal metastases. Participants with brain metastases are permitted if they are asymptomatic, for example, diagnosed incidentally by brain imaging, or participants with previously treated brain metastases that are asymptomatic at screening, radiographically stable and not requiring steroid medications for at least 4 weeks prior to the first administration of study treatment. 4. Participants with active autoimmune diseases or history of autoimmune diseases or immunodeficiency that may relapse should be excluded. Participants with following diseases are allowed to be enrolled for further screening: type I diabetes, hypothyroidism managed with hormone replacement therapy only, skin diseases not requiring systemic treatment (such as vitiligo, psoriasis or alopecia), or diseases not expected to recur in the absence of external triggering factors. 5. Participants should be excluded if they have a condition requiring systemic treatment with either corticosteroids or other immunosuppressive medications within 14 days of study drug administration. 6. With uncontrollable pleural effusion, pericardial effusion or ascites requiring repeated drainage. 7. Use of any live or attenuated vaccines within 4 weeks (28 days) prior to initiation of study therapy. 8. Major surgical procedure (Grade 3 or 4) within the past 4 weeks (28 days) prior to study drug administration. 9. Prior allogeneic or solid organ transplantation. NOTE: Other protocol-defined Inclusion/

Design outcomes

Primary

MeasureTime frameDescription
Dose Verification and PK Sub-study: Number Participants With Adverse EventsUp to approximately 23 monthsNumber of participants with adverse events (AEs) and serious adverse events (SAEs), as defined per NCI-CTCAE Version 4.03, including physical examination, electrocardiograms and laboratory assessments
Dose Verification: Recommended Dose of TislelizumabUp to approximately 23 monthsRecommended dose of tislelizumab for indication cohorts based on safety and tolerability
PK Sub-study: Area Under the Concentration-time Curve From Time 0 to Infinity (AUC0-inf) of Tislelizumab From Two Manufacturing Processes and ScalesPredose, end of infusion, 3 hours, 6 hours on Day 1, Day 2, Day 4, Day 8, Day 15, Day 22, and Day 29 predosePharmacokinetics from products derived from two manufacturing scales at 500 liter and 2000 liter final manufacturing process (FMP) were evaluated
PK Sub-study: Area Under the Concentration-time Curve From Time 0 to 28 Days Postdose (AUC0-28d) of Tislelizumab From Two Manufacturing Processes and ScalesPredose, end of infusion, 3 hours, 6 hours on Day 1, Day 2, Day 4, Day 8, Day 15, Day 22, and Day 29 predosePharmacokinetics from products derived from two manufacturing scales at 500 liter and 2000 liter final manufacturing process (FMP) were evaluated
PK Sub-study: Maximum Observed Concentration (Cmax) of Tislelizumab From Two Manufacturing Processes and ScalesPredose, end of infusion, 3 hours, 6 hours on Day 1, Day 2, Day 4, Day 8, Day 15, Day 22, and Day 29 predosePharmacokinetics from products derived from two manufacturing scales at 500 liter and 2000 liter FMP were evaluated
Indication Expansion: Objective Response RateUp to approximately 3 years and 5 monthsObjective response rate (ORR) is defined as the percentage of participants who achieved objective tumor response (complete response or partial response) according to RECIST Version 1.1. Indication expansion includes participants from all parts in the following indications: non-small cell lung cancer (NSCLC), melanoma, esophageal squamous cell carcinoma (ESCC), gastric cancer (GC), urothelial carcinoma (UC), nasopharyngeal carcinoma (NPC), renal cell carcinoma (RCC), hepatocellular carcinoma (HCC), microsatellite instability-high (MSI-H) or mismatch repair deficient (dMMR) tumors, and other tumor types.

Secondary

MeasureTime frameDescription
Indication Expansion: Duration of ResponseUp to approximately 3 years and 5 monthsDuration of response for responders with complete or partial response is defined as the time interval between the date of the earliest qualifying response and the date of progressive disease or death for any cause, whichever occurs earlier as determined by Investigator per RECIST version 1.1. Indication expansion includes participants from all parts in the following indications: non-small cell lung cancer (NSCLC), melanoma, esophageal squamous cell carcinoma (ESCC), gastric cancer (GC), urothelial carcinoma (UC), nasopharyngeal carcinoma (NPC), renal cell carcinoma (RCC), hepatocellular carcinoma (HCC), microsatellite instability-high (MSI-H) or mismatch repair deficient (dMMR) tumors, and other tumor types.
Indication Expansion: Clinical Benefit RateUp to approximately 3 years and 5 monthsClinical benefit rate is defined as the percentage of participants in specific tumor types reaching confirmed CR, PR and durable stable disease (SD; at ≥ 24 weeks) in accordance with RECIST version 1.1. Indication expansion includes participants from all parts in the following indications: non-small cell lung cancer (NSCLC), melanoma, esophageal squamous cell carcinoma (ESCC), gastric cancer (GC), urothelial carcinoma (UC), nasopharyngeal carcinoma (NPC), renal cell carcinoma (RCC), hepatocellular carcinoma (HCC), microsatellite instability-high (MSI-H) or mismatch repair deficient (dMMR) tumors, and other tumor types.
Dose Verification: Maximum Observed Concentration (Cmax) of TislelizumabPredose, end of infusion, 1.5 hours, 6 hours on Day 1, Day 2, Day 4, Day 8, Day 15, Day 22 predose in Cycle 1 and Cycle 5 (21 days per cycle)
Indication Expansion: Disease Control RateUp to approximately 3 years and 5 monthsDisease control rate is defined as the percentage of participants reaching CR, PR, and SD according to RECIST version 1.1. Indication expansion includes participants from all parts in the following indications: non-small cell lung cancer (NSCLC), melanoma, esophageal squamous cell carcinoma (ESCC), gastric cancer (GC), urothelial carcinoma (UC), nasopharyngeal carcinoma (NPC), renal cell carcinoma (RCC), hepatocellular carcinoma (HCC), microsatellite instability-high (MSI-H) or mismatch repair deficient (dMMR) tumors, and other tumor types.
Number of Participants With Positive Anti-drug Antibody (ADA) Status to TislelizumabUp to approximately 23 months
Indication Expansion: Overall SurvivalUp to approximately 3 years and 5 monthsOverall survival is defined as the time from the date of the first study dose to death. Indication expansion includes participants from all parts in the following indications: non-small cell lung cancer (NSCLC), melanoma, esophageal squamous cell carcinoma (ESCC), gastric cancer (GC), urothelial carcinoma (UC), nasopharyngeal carcinoma (NPC), renal cell carcinoma (RCC), hepatocellular carcinoma (HCC), microsatellite instability-high (MSI-H) or mismatch repair deficient (dMMR) tumors, and other tumor types.
Dose Verification: Area Under the Concentration-time Curve From Time 0 to 21 Days Postdose (AUC0-tau) of TislelizumabPredose, end of infusion, 1.5 hours, 6 hours on Day 1, Day 2, Day 4, Day 8, Day 15, Day 22 predose in Cycle 1 and Cycle 5 (21 days per cycle)
Dose Verification: Predose Plasma Concentration of Tislelizumab During Multiple Dosing (Ctrough)Predose, end of infusion, 1.5 hours, 6 hours on Day 1, Day 2, Day 4, Day 8, Day 15, Day 22 predose in Cycle 1 and Cycle 5 (21 days per cycle)
Dose Verification: Apparent Terminal Half-life of Tislelizumab (t1/2)Predose, end of infusion, 1.5 hours, 6 hours on Day 1, Day 2, Day 4, Day 8, Day 15, Day 22 predose in Cycle 1 and Cycle 5 (21 days per cycle)
Dose Verification: Clearance (Cl)Predose, end of infusion, 1.5 hours, 6 hours on Day 1, Day 2, Day 4, Day 8, Day 15, Day 22 predose in Cycle 1 (21 days per cycle)
Indication Expansion: Progression-free Survival (PFS)Up to approximately 3 years and 5 monthsProgression-free survival is defined as the time from the date of first study dose to disease progression or death, whichever comes first, as determined by Investigator per RECIST version 1.1. Indication expansion includes participants from all parts in the following indications: non-small cell lung cancer (NSCLC), melanoma, esophageal squamous cell carcinoma (ESCC), gastric cancer (GC), urothelial carcinoma (UC), nasopharyngeal carcinoma (NPC), renal cell carcinoma (RCC), hepatocellular carcinoma (HCC), microsatellite instability-high (MSI-H) or mismatch repair deficient (dMMR) tumors, and other tumor types.

Countries

China

Participant flow

Recruitment details

A total of 300 participants were treated with at least 1 dose of tislelizumab. This was a single arm study with 3 parts: dose verification, pharmacokinetic (PK) sub-study, and indication expansion.

Participants by arm

ArmCount
Tislelizumab
Tislelizumab 200 mg was administered intravenously (IV) once every 3 weeks (21 days per cycle) until no evidence of continued clinical benefits, unacceptable toxicity, or withdrawal of informed consent at the discretion of the investigator.
300
Total300

Withdrawals & dropouts

PeriodReasonFG000
Dose VerificationDeath15
Dose VerificationWithdrawal by Subject1
Indication ExpansionDeath152
Indication ExpansionLost to Follow-up7
Indication ExpansionWithdrawal by Subject10
Pharmacokinetic Sub-studyDeath35
Pharmacokinetic Sub-studyLost to Follow-up4
Pharmacokinetic Sub-studyOther not specified1
Pharmacokinetic Sub-studyWithdrawal by Subject1

Baseline characteristics

CharacteristicTislelizumab
Age, Continuous55.5 Years
STANDARD_DEVIATION 11.48
Race/Ethnicity, Customized
Chinese
300 Participants
Sex: Female, Male
Female
93 Participants
Sex: Female, Male
Male
207 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
202 / 300
other
Total, other adverse events
277 / 300
serious
Total, serious adverse events
85 / 300

Outcome results

Primary

Dose Verification and PK Sub-study: Number Participants With Adverse Events

Number of participants with adverse events (AEs) and serious adverse events (SAEs), as defined per NCI-CTCAE Version 4.03, including physical examination, electrocardiograms and laboratory assessments

Time frame: Up to approximately 23 months

Population: The Safety Analysis Set (SAS) included all participants who received ≥ 1 dose of tislelizumab

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Dose VerificationDose Verification and PK Sub-study: Number Participants With Adverse EventsAt least one treatment-emergent adverse event (TEAE)20 Participants
Dose VerificationDose Verification and PK Sub-study: Number Participants With Adverse EventsTEAE Grade 3 of higher9 Participants
Dose VerificationDose Verification and PK Sub-study: Number Participants With Adverse EventsSerious adverse event4 Participants
PK Sub-studyDose Verification and PK Sub-study: Number Participants With Adverse EventsAt least one treatment-emergent adverse event (TEAE)54 Participants
PK Sub-studyDose Verification and PK Sub-study: Number Participants With Adverse EventsTEAE Grade 3 of higher21 Participants
PK Sub-studyDose Verification and PK Sub-study: Number Participants With Adverse EventsSerious adverse event14 Participants
Primary

Dose Verification: Recommended Dose of Tislelizumab

Recommended dose of tislelizumab for indication cohorts based on safety and tolerability

Time frame: Up to approximately 23 months

Population: The Safety Analysis Set (SAS) included all participants who received ≥ 1 dose of tislelizumab

ArmMeasureValue (NUMBER)
Dose VerificationDose Verification: Recommended Dose of Tislelizumab200 milligrams
Primary

Indication Expansion: Objective Response Rate

Objective response rate (ORR) is defined as the percentage of participants who achieved objective tumor response (complete response or partial response) according to RECIST Version 1.1. Indication expansion includes participants from all parts in the following indications: non-small cell lung cancer (NSCLC), melanoma, esophageal squamous cell carcinoma (ESCC), gastric cancer (GC), urothelial carcinoma (UC), nasopharyngeal carcinoma (NPC), renal cell carcinoma (RCC), hepatocellular carcinoma (HCC), microsatellite instability-high (MSI-H) or mismatch repair deficient (dMMR) tumors, and other tumor types.

Time frame: Up to approximately 3 years and 5 months

Population: The Safety Analysis Set (SAS) included all participants who received ≥ 1 dose of tislelizumab; one participant is included in both MSI-H/dMMR and GC indications.

ArmMeasureGroupValue (NUMBER)
Dose VerificationIndication Expansion: Objective Response RateUC18.2 Percentage of participants
Dose VerificationIndication Expansion: Objective Response RateNSCLC17.9 Percentage of participants
Dose VerificationIndication Expansion: Objective Response RateMelanoma17.6 Percentage of participants
Dose VerificationIndication Expansion: Objective Response RateESCC7.7 Percentage of participants
Dose VerificationIndication Expansion: Objective Response RateGC16.7 Percentage of participants
Dose VerificationIndication Expansion: Objective Response RateNPC47.6 Percentage of participants
Dose VerificationIndication Expansion: Objective Response RateRCC9.5 Percentage of participants
Dose VerificationIndication Expansion: Objective Response RateHCC16.7 Percentage of participants
Dose VerificationIndication Expansion: Objective Response RateMSI-H/dMMR25.0 Percentage of participants
Dose VerificationIndication Expansion: Objective Response RateOther9.5 Percentage of participants
Primary

PK Sub-study: Area Under the Concentration-time Curve From Time 0 to 28 Days Postdose (AUC0-28d) of Tislelizumab From Two Manufacturing Processes and Scales

Pharmacokinetics from products derived from two manufacturing scales at 500 liter and 2000 liter final manufacturing process (FMP) were evaluated

Time frame: Predose, end of infusion, 3 hours, 6 hours on Day 1, Day 2, Day 4, Day 8, Day 15, Day 22, and Day 29 predose

Population: The PK Analysis Set included participants in the SAS for whom at least 1 valid PK parameter could be derived for tislelizumab

ArmMeasureGroupValue (GEOMETRIC_MEAN)
Dose VerificationPK Sub-study: Area Under the Concentration-time Curve From Time 0 to 28 Days Postdose (AUC0-28d) of Tislelizumab From Two Manufacturing Processes and Scales500L-FMP810.2 µg/mL*day
Dose VerificationPK Sub-study: Area Under the Concentration-time Curve From Time 0 to 28 Days Postdose (AUC0-28d) of Tislelizumab From Two Manufacturing Processes and Scales2000L-FMP801.7 µg/mL*day
Primary

PK Sub-study: Area Under the Concentration-time Curve From Time 0 to Infinity (AUC0-inf) of Tislelizumab From Two Manufacturing Processes and Scales

Pharmacokinetics from products derived from two manufacturing scales at 500 liter and 2000 liter final manufacturing process (FMP) were evaluated

Time frame: Predose, end of infusion, 3 hours, 6 hours on Day 1, Day 2, Day 4, Day 8, Day 15, Day 22, and Day 29 predose

Population: The PK Analysis Set included participants in the SAS for whom at least 1 valid PK parameter could be derived for tislelizumab

ArmMeasureGroupValue (GEOMETRIC_MEAN)
Dose VerificationPK Sub-study: Area Under the Concentration-time Curve From Time 0 to Infinity (AUC0-inf) of Tislelizumab From Two Manufacturing Processes and Scales500L-FMP1113.9 µg/mL*day
Dose VerificationPK Sub-study: Area Under the Concentration-time Curve From Time 0 to Infinity (AUC0-inf) of Tislelizumab From Two Manufacturing Processes and Scales2000L-FMP1108 µg/mL*day
Primary

PK Sub-study: Maximum Observed Concentration (Cmax) of Tislelizumab From Two Manufacturing Processes and Scales

Pharmacokinetics from products derived from two manufacturing scales at 500 liter and 2000 liter FMP were evaluated

Time frame: Predose, end of infusion, 3 hours, 6 hours on Day 1, Day 2, Day 4, Day 8, Day 15, Day 22, and Day 29 predose

Population: PK Analysis Set included participants in the SAS for whom at least 1 valid PK parameter could be derived for tislelizumab

ArmMeasureGroupValue (GEOMETRIC_MEAN)
Dose VerificationPK Sub-study: Maximum Observed Concentration (Cmax) of Tislelizumab From Two Manufacturing Processes and Scales500L-FMP77.3 µg/mL
Dose VerificationPK Sub-study: Maximum Observed Concentration (Cmax) of Tislelizumab From Two Manufacturing Processes and Scales2000L-FMP75.7 µg/mL
Secondary

Dose Verification: Apparent Terminal Half-life of Tislelizumab (t1/2)

Time frame: Predose, end of infusion, 1.5 hours, 6 hours on Day 1, Day 2, Day 4, Day 8, Day 15, Day 22 predose in Cycle 1 and Cycle 5 (21 days per cycle)

Population: PK Analysis Set included participants in the SAS for whom at least 1 valid PK parameter could be derived for tislelizumab

ArmMeasureGroupValue (MEAN)Dispersion
Dose VerificationDose Verification: Apparent Terminal Half-life of Tislelizumab (t1/2)Cycle 113.3 DaysStandard Deviation 2.95
Dose VerificationDose Verification: Apparent Terminal Half-life of Tislelizumab (t1/2)Cycle 516.9 DaysStandard Deviation 3.79
Secondary

Dose Verification: Area Under the Concentration-time Curve From Time 0 to 21 Days Postdose (AUC0-tau) of Tislelizumab

Time frame: Predose, end of infusion, 1.5 hours, 6 hours on Day 1, Day 2, Day 4, Day 8, Day 15, Day 22 predose in Cycle 1 and Cycle 5 (21 days per cycle)

Population: PK Analysis Set included participants in the SAS for whom at least 1 valid PK parameter could be derived for tislelizumab

ArmMeasureGroupValue (MEAN)Dispersion
Dose VerificationDose Verification: Area Under the Concentration-time Curve From Time 0 to 21 Days Postdose (AUC0-tau) of TislelizumabCycle 1600.1 µg/mL*dayStandard Deviation 144.5
Dose VerificationDose Verification: Area Under the Concentration-time Curve From Time 0 to 21 Days Postdose (AUC0-tau) of TislelizumabCycle 51122 µg/mL*dayStandard Deviation 352
Secondary

Dose Verification: Clearance (Cl)

Time frame: Predose, end of infusion, 1.5 hours, 6 hours on Day 1, Day 2, Day 4, Day 8, Day 15, Day 22 predose in Cycle 1 (21 days per cycle)

Population: PK Analysis Set included participants in the SAS for whom at least 1 valid PK parameter could be derived for tislelizumab

ArmMeasureValue (MEAN)Dispersion
Dose VerificationDose Verification: Clearance (Cl)0.247 Liters/dayStandard Deviation 0.0918
Secondary

Dose Verification: Maximum Observed Concentration (Cmax) of Tislelizumab

Time frame: Predose, end of infusion, 1.5 hours, 6 hours on Day 1, Day 2, Day 4, Day 8, Day 15, Day 22 predose in Cycle 1 and Cycle 5 (21 days per cycle)

Population: PK Analysis Set included participants in the SAS for whom at least 1 valid PK parameter could be derived for tislelizumab

ArmMeasureGroupValue (MEAN)Dispersion
Dose VerificationDose Verification: Maximum Observed Concentration (Cmax) of TislelizumabCycle 167.8 µg/mLStandard Deviation 12.8
Dose VerificationDose Verification: Maximum Observed Concentration (Cmax) of TislelizumabCycle 5131 µg/mLStandard Deviation 37.7
Secondary

Dose Verification: Predose Plasma Concentration of Tislelizumab During Multiple Dosing (Ctrough)

Time frame: Predose, end of infusion, 1.5 hours, 6 hours on Day 1, Day 2, Day 4, Day 8, Day 15, Day 22 predose in Cycle 1 and Cycle 5 (21 days per cycle)

Population: PK Analysis Set included participants in the SAS for whom at least 1 valid PK parameter could be derived for tislelizumab

ArmMeasureGroupValue (MEAN)Dispersion
Dose VerificationDose Verification: Predose Plasma Concentration of Tislelizumab During Multiple Dosing (Ctrough)Cycle 115.8 µg/mLStandard Deviation 4.73
Dose VerificationDose Verification: Predose Plasma Concentration of Tislelizumab During Multiple Dosing (Ctrough)Cycle 531.4 µg/mLStandard Deviation 9.55
Secondary

Indication Expansion: Clinical Benefit Rate

Clinical benefit rate is defined as the percentage of participants in specific tumor types reaching confirmed CR, PR and durable stable disease (SD; at ≥ 24 weeks) in accordance with RECIST version 1.1. Indication expansion includes participants from all parts in the following indications: non-small cell lung cancer (NSCLC), melanoma, esophageal squamous cell carcinoma (ESCC), gastric cancer (GC), urothelial carcinoma (UC), nasopharyngeal carcinoma (NPC), renal cell carcinoma (RCC), hepatocellular carcinoma (HCC), microsatellite instability-high (MSI-H) or mismatch repair deficient (dMMR) tumors, and other tumor types.

Time frame: Up to approximately 3 years and 5 months

Population: The Safety Analysis Set (SAS) included all participants who received ≥ 1 dose of tislelizumab; one participant is included in both MSI-H/dMMR and GC indications.

ArmMeasureGroupValue (NUMBER)
Dose VerificationIndication Expansion: Clinical Benefit RateNSCLC33.9 Percentage of participants
Dose VerificationIndication Expansion: Clinical Benefit RateMelanoma32.4 Percentage of participants
Dose VerificationIndication Expansion: Clinical Benefit RateESCC15.4 Percentage of participants
Dose VerificationIndication Expansion: Clinical Benefit RateGC25.0 Percentage of participants
Dose VerificationIndication Expansion: Clinical Benefit RateUC27.3 Percentage of participants
Dose VerificationIndication Expansion: Clinical Benefit RateNPC61.9 Percentage of participants
Dose VerificationIndication Expansion: Clinical Benefit RateRCC38.1 Percentage of participants
Dose VerificationIndication Expansion: Clinical Benefit RateHCC38.9 Percentage of participants
Dose VerificationIndication Expansion: Clinical Benefit RateMSI-H/dMMR50.0 Percentage of participants
Dose VerificationIndication Expansion: Clinical Benefit RateOther22.2 Percentage of participants
Secondary

Indication Expansion: Disease Control Rate

Disease control rate is defined as the percentage of participants reaching CR, PR, and SD according to RECIST version 1.1. Indication expansion includes participants from all parts in the following indications: non-small cell lung cancer (NSCLC), melanoma, esophageal squamous cell carcinoma (ESCC), gastric cancer (GC), urothelial carcinoma (UC), nasopharyngeal carcinoma (NPC), renal cell carcinoma (RCC), hepatocellular carcinoma (HCC), microsatellite instability-high (MSI-H) or mismatch repair deficient (dMMR) tumors, and other tumor types.

Time frame: Up to approximately 3 years and 5 months

Population: The Safety Analysis Set (SAS) included all participants who received ≥ 1 dose of tislelizumab; one participant is included in both MSI-H/dMMR and GC indications.

ArmMeasureGroupValue (NUMBER)
Dose VerificationIndication Expansion: Disease Control RateNSCLC55.4 Percentage of participants
Dose VerificationIndication Expansion: Disease Control RateMelanoma38.2 Percentage of participants
Dose VerificationIndication Expansion: Disease Control RateESCC34.6 Percentage of participants
Dose VerificationIndication Expansion: Disease Control RateGC25.0 Percentage of participants
Dose VerificationIndication Expansion: Disease Control RateUC40.9 Percentage of participants
Dose VerificationIndication Expansion: Disease Control RateNPC81.0 Percentage of participants
Dose VerificationIndication Expansion: Disease Control RateRCC52.4 Percentage of participants
Dose VerificationIndication Expansion: Disease Control RateHCC55.6 Percentage of participants
Dose VerificationIndication Expansion: Disease Control RateMSI-H/dMMR50.0 Percentage of participants
Dose VerificationIndication Expansion: Disease Control RateOther31.7 Percentage of participants
Secondary

Indication Expansion: Duration of Response

Duration of response for responders with complete or partial response is defined as the time interval between the date of the earliest qualifying response and the date of progressive disease or death for any cause, whichever occurs earlier as determined by Investigator per RECIST version 1.1. Indication expansion includes participants from all parts in the following indications: non-small cell lung cancer (NSCLC), melanoma, esophageal squamous cell carcinoma (ESCC), gastric cancer (GC), urothelial carcinoma (UC), nasopharyngeal carcinoma (NPC), renal cell carcinoma (RCC), hepatocellular carcinoma (HCC), microsatellite instability-high (MSI-H) or mismatch repair deficient (dMMR) tumors, and other tumor types.

Time frame: Up to approximately 3 years and 5 months

Population: The Safety Analysis Set (SAS) included all participants who received ≥ 1 dose of tislelizumab; one participant is included in both MSI-H/dMMR and GC indications.

ArmMeasureGroupValue (MEDIAN)
Dose VerificationIndication Expansion: Duration of ResponseNSCLC30.4 Months
Dose VerificationIndication Expansion: Duration of ResponseMelanoma12.5 Months
Dose VerificationIndication Expansion: Duration of ResponseESCCNA Months
Dose VerificationIndication Expansion: Duration of ResponseGCNA Months
Dose VerificationIndication Expansion: Duration of ResponseUCNA Months
Dose VerificationIndication Expansion: Duration of ResponseNPC8.8 Months
Dose VerificationIndication Expansion: Duration of ResponseRCCNA Months
Dose VerificationIndication Expansion: Duration of ResponseHCCNA Months
Dose VerificationIndication Expansion: Duration of ResponseMSI-H/dMMRNA Months
Dose VerificationIndication Expansion: Duration of ResponseOtherNA Months
Secondary

Indication Expansion: Overall Survival

Overall survival is defined as the time from the date of the first study dose to death. Indication expansion includes participants from all parts in the following indications: non-small cell lung cancer (NSCLC), melanoma, esophageal squamous cell carcinoma (ESCC), gastric cancer (GC), urothelial carcinoma (UC), nasopharyngeal carcinoma (NPC), renal cell carcinoma (RCC), hepatocellular carcinoma (HCC), microsatellite instability-high (MSI-H) or mismatch repair deficient (dMMR) tumors, and other tumor types.

Time frame: Up to approximately 3 years and 5 months

Population: The Safety Analysis Set (SAS) included all participants who received ≥ 1 dose of tislelizumab; one participant is included in both MSI-H/dMMR and GC indications.

ArmMeasureGroupValue (MEDIAN)
Dose VerificationIndication Expansion: Overall SurvivalUC4.3 Months
Dose VerificationIndication Expansion: Overall SurvivalNSCLC22.1 Months
Dose VerificationIndication Expansion: Overall SurvivalMelanoma11.8 Months
Dose VerificationIndication Expansion: Overall SurvivalESCC4.8 Months
Dose VerificationIndication Expansion: Overall SurvivalGC4.7 Months
Dose VerificationIndication Expansion: Overall SurvivalNPC25.0 Months
Dose VerificationIndication Expansion: Overall SurvivalRCC19.8 Months
Dose VerificationIndication Expansion: Overall SurvivalHCC25.1 Months
Dose VerificationIndication Expansion: Overall SurvivalMSI-H/dMMR19.4 Months
Dose VerificationIndication Expansion: Overall SurvivalOther9.0 Months
Secondary

Indication Expansion: Progression-free Survival (PFS)

Progression-free survival is defined as the time from the date of first study dose to disease progression or death, whichever comes first, as determined by Investigator per RECIST version 1.1. Indication expansion includes participants from all parts in the following indications: non-small cell lung cancer (NSCLC), melanoma, esophageal squamous cell carcinoma (ESCC), gastric cancer (GC), urothelial carcinoma (UC), nasopharyngeal carcinoma (NPC), renal cell carcinoma (RCC), hepatocellular carcinoma (HCC), microsatellite instability-high (MSI-H) or mismatch repair deficient (dMMR) tumors, and other tumor types.

Time frame: Up to approximately 3 years and 5 months

Population: The Safety Analysis Set (SAS) included all participants who received ≥ 1 dose of tislelizumab; one participant is included in both MSI-H/dMMR and GC indications.

ArmMeasureGroupValue (MEDIAN)
Dose VerificationIndication Expansion: Progression-free Survival (PFS)NSCLC4.0 Months
Dose VerificationIndication Expansion: Progression-free Survival (PFS)Melanoma2.2 Months
Dose VerificationIndication Expansion: Progression-free Survival (PFS)ESCC2.1 Months
Dose VerificationIndication Expansion: Progression-free Survival (PFS)GC2.1 Months
Dose VerificationIndication Expansion: Progression-free Survival (PFS)UC2.1 Months
Dose VerificationIndication Expansion: Progression-free Survival (PFS)NPC8.2 Months
Dose VerificationIndication Expansion: Progression-free Survival (PFS)RCC4.1 Months
Dose VerificationIndication Expansion: Progression-free Survival (PFS)HCC4.0 Months
Dose VerificationIndication Expansion: Progression-free Survival (PFS)MSI-H/dMMR6.1 Months
Dose VerificationIndication Expansion: Progression-free Survival (PFS)Other2.3 Months
Secondary

Number of Participants With Positive Anti-drug Antibody (ADA) Status to Tislelizumab

Time frame: Up to approximately 23 months

Population: Evaluable participants had non-missing baseline ADA and at least 1 non-missing postbaseline ADA result.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Dose VerificationNumber of Participants With Positive Anti-drug Antibody (ADA) Status to TislelizumabTreatment-emergent43 Participants
Dose VerificationNumber of Participants With Positive Anti-drug Antibody (ADA) Status to TislelizumabTreatment-boosted2 Participants
Dose VerificationNumber of Participants With Positive Anti-drug Antibody (ADA) Status to TislelizumabTreatment-induced41 Participants

Source: ClinicalTrials.gov · Data processed: Feb 25, 2026