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A Study to Compare Ociperlimab Plus Tislelizumab Versus Durvalumab Following Concurrent Chemoradiotherapy (cCRT) in Participants With Stage III Unresectable Non-Small Cell Lung Cancer

A Phase 3, Randomized, Open-Label Study to Compare Ociperlimab (BGB-A1217) Plus Tislelizumab (BGB-A317) Versus Durvalumab in Patients With Locally Advanced, Unresectable, PD-L1-Selected Non-Small Cell Lung Cancer Whose Disease Has Not Progressed After Concurrent Chemoradiotherapy

Status
Terminated
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04866017
Enrollment
63
Registered
2021-04-29
Start date
2021-06-17
Completion date
2023-10-17
Last updated
2024-10-31

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

Conditions

Non Small Cell Lung Cancer

Brief summary

The purpose of this study was to evaluate the safety and efficacy of ociperlimab in combination with tislelizumab compared to durvalumab in adults with stage III unresectable PD-L1-selected non-small cell lung cancer whose disease has not progressed after cCRT.

Detailed description

The study initiated with Protocol Amendment 1.0 (PA 1; dated on 16 April 2021). In April 2022 Protocol Amendment 2 (PA 2) was implemented. In PA 1, participants with newly diagnosed, histologically confirmed, unresectable locally advanced NSCLC and evaluable PD-L1 expression all comers were enrolled; cCRT was given within the study. In PA 2, the enrollment of the target population was revised into participants with unresectable locally advanced NSCLC whose disease has not progressed after definitive, platinum-based cCRT and with PD-L1 expression on ≥ 1% of tumor cells as assessed by the central lab; cCRT was given outside of the study. After implementation of PA 2, participants who were randomized under PA 1 were given the option to continue assigned study treatment or to discontinue assigned treatment and begin standard of care treatment outside of the study. Participants enrolled under PA 1 were excluded from the primary and secondary analysis specified by PA 2. This study was subsequently terminated by the Sponsor prior to enrollment of any participants under PA 2.

Interventions

DRUGTislelizumab

200 mg intravenously every three weeks

DRUGDurvalumab

10 milligrams per kilogram (mg/kg) intravenously once every 2 weeks (or 1500 mg intravenously once every 4 weeks where the dosage has been approved by a local health authority)

900 milligrams (mg) intravenously every three weeks

DRUGChemotherapy

The chemotherapy regimen for the study treatment was selected at the investigator's discretion and may include one of the following options: * Cisplatin (50 mg/m²) on days 1 to 5 of each cycle, combined with etoposide (50 mg/m²) on days 1 and 8, both administered intravenously for 2 cycles. Each cycle was 28 days. * Carboplatin (AUC 2) weekly for 6 weeks, combined with paclitaxel (40-50 mg/m²) weekly for 6 weeks, both administered intravenously. * Cisplatin (75 mg/m²) combined with pemetrexed (500 mg/m²) on day 1 of each cycle, administered intravenously for 2 cycles. Each cycle was 21 days. * Carboplatin (AUC 5) combined with pemetrexed (500 mg/m²) on day 1 of each cycle, administered intravenously for 2 cycles. Each cycle was 21 days. The pemetrexed plus platinum regimen was only for participants with non-squamous histology.

RADIATIONRadiotherapy

All participants recieved radiotherapy using either a standardized 3-dimensional conformal radiotherapy technique, or intensity modulated radiotherapy (IMRT) on a linear accelerator delivering a beam energy of ≥ 6 MV. The total dose of radiotherapy was 60 Gy, administered in 30 once-daily fractions of 2 Gy and 5 fractions per week for 6 weeks.

Sponsors

BeiGene
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

Key Inclusion Criteria: 1. Age ≥ 18 years on the day of signing the informed consent form (or the legal age of consent in the jurisdiction in which the study is taking place). 2. Participant has histologically or cytologically confirmed, locally advanced, unresectable Stage III NSCLC (AJCC Cancer Staging Manual 2017, derived from IASLC) prior to initiation of cCRT. 3. Participant must have completed at least 2 cycles of platinum-based chemotherapy concurrent with radiotherapy 4. Participants must have not experienced PD following definitive, platinum-based cCRT. 5. Eastern Co-operative Oncology Group (ECOG) Performance Status of 0 or 1. 6. Participants must have adequate organ function 7. Agree to provide archival tissue (formalin-fixed paraffin-embedded block containing tumor \[preferred\] or approximately 6 to 15 freshly cut unstained slides) or fresh biopsy obtained prior to cCRT (if archival tissue is not available) for prospective central evaluation of PD-L1 levels and retrospective analysis of other biomarkers. Key

Exclusion criteria

1. Prior therapy with an anti-PD-1, anti-PD-L1, anti-PD-L2, TIGIT, or any other antibody or drugs specifically targeting T-cell co-stimulation or checkpoint pathways. 2. Diagnosed with NSCLC that harbors an epidermal growth factor receptor (EGFR) sensitizing mutation, anaplastic lymphoma kinase (ALK) gene translocation, ROS1 gene translocation or RET gene rearrangement. 3. Participants who received systemic anticancer treatment besides the specified cCRT. 4. Any unresolved toxicity CTCAE \> Grade 2 from the prior cCRT. 5. Active autoimmune diseases or history of autoimmune diseases that may relapse. 6. Any condition that required systemic treatment with either corticosteroids (\> 10 mg daily of prednisone \[in Japan, prednisolone\] or equivalent) or other immunosuppressive medication ≤ 14 days before the first dose of study treatment. 7. Infection (including tuberculosis infection, etc) requiring systemic antibacterial, antifungal, or antiviral therapy within 14 days before the first dose of study treatment. Note: Antiviral therapy is permitted for participants with chronic hepatitis B virus (HBV) or hepatitis C virus (HCV) infection. NOTE: Other protocol Inclusion/

Design outcomes

Primary

MeasureTime frameDescription
Progression-Free Survival (PFS) as Assessed by the Independent Review Committee (IRC)From randomization through to the end of study, planned duration was 20 monthsPFS is defined as the time from the date of randomization to the date of first documentation of disease progression as assessed by the IRC per Response Evaluation Criteria in Solid Tumors (RECIST) Version (v) 1.1 or death, whichever occurred first.

Secondary

MeasureTime frameDescription
Overall Response Rate (ORR)From randomization through to the end of study, planned duration was 20 monthsDefined as the percentage of participants who achieved a complete response (CR) or partial response (PR) assessed by both the IRC and investigators per RECIST v1.1.
Duration of Response (DOR)From randomization through to the end of study, planned duration was 20 monthsdefined as the time from the first determination of a confirmed objective response assessed by both the IRC and investigators per RECIST v1.1 until the first documentation of disease progression or death, whichever occurs first
Time to Death or Distant Metastasis (TTDM) as Assessed by the InvestigatorFrom randomization through to the end of study, planned duration was 20 monthsdefined as the time from the date of randomization until the first date of distant metastasis assessed by both the IRC and investigators, or death. Distant metastasis is defined as any new lesion that is outside of the radiation field per RECIST v1.1 or proven by biopsy.
Progression-Free Survival 2 (PFS2)From randomization through to the end of study, planned duration was 20 monthsdefined as the time from randomization to the disease progression after next line of treatment, or death from any cause, whichever occurs first
Number of Participants Experiencing Adverse Events (AEs)From first dose to 30 days after the last dose or initiation of a new anticancer therapy, whichever occured first; through study completion data cut-off date of October 17th, 2023 (maximum time on treatment was 16 months)Number of participants with treatment-emergent adverse events (TEAEs) and serious adverse events (SAEs) determined according to National Cancer Institute Common Terminology Criteria for Adverse Events Version 5.0 (NCI CTCAE v5.0)
Change From Baseline in European Organization for the Research and Treatment of Cancer Quality of Life Questionnaire Core 30 (EORTC QLQ-C30) Global Health StatusBaseline and Cycle 6 (Each cycle is 21 days)Change from baseline in EORTC QLQ-C30 Global Health Status/Quality of Life score. The EORTC QLQ-C30 v3.0 is a questionnaire that assesses quality of life of participants with cancer. It includes global health status and quality of life questions related to overall health in which participants respond based on a 7-point scale, where 1 is very poor and 7 is excellent. Raw scores are transformed into a 0 to 100 scale via linear transformation. A higher score indicates better health outcomes.
Change From Baseline in Health Related Quality of Life (HRQoL) as Assessed by Quality of Life Questionnaire-Lung Cancer 13 (QLQ-LC13)Baseline and Cycle 6 (Each cycle is 21 days)Change from baseline in QLQ-CL13 scores for coughing, dyspnea, and chest pain. The QLQ-LC13 is a questionnaire that measures lung cancer-specific disease and treatment symptoms. It includes questions about specific symptoms in which participants respond based on a 4-point scale, where 1 is not at all and 4 is very much. Raw scores are transformed into a 0 to 100 scale via linear transformation. A lower score indicates an improvement in symptoms.
Overall Survival (OS)From randomization through to the end of study, planned duration was 20 monthsDefined as the time from the date of randomization until the date of death due to any cause
Serum Concentration of OciperlimabPredose at Day 1 of Cycles 1, 2, 5, 9, and 17; postdose on Day 1 of Cycles 1, 5 and EOT visit (Each Cycle was 21 days)Serum concentrations of ociperlimab were measured for participants in the Ociperlimab + Tislelizumab + cCRT treatment group at predose (within 60 minutes before starting infusion) and postdose (within 30 minutes after the end of infusion). End of Treatment (EOT) visits occurred within 7 days after the date the investigator determined that study treatment would no longer be used, or before the initiation of a new anticancer treatment, whichever occurred first.
Serum Concentration of Tislelizumab for Participants in the Ociperlimab + Tislelizumab + cCRT Treatment GroupPredose at Day 1 of Cycles 1, 2, 5, 9, 17; postdose on Day 1 of Cycles 1 and 5, and EOT visit (each cycle was 21 days)Serum concentrations of tislelizumab were collected for participants in the Ociperlimab + Tislelizumab + cCRT treatment group at predose (within 60 minutes before starting infusion) and postdose (within 30 minutes after the end of infusion). End of Treatment (EOT) visits occurred within 7 days after the date investigator determined that study treatment would no longer be used, or before the initiation of a new anticancer treatment, whichever occurred first.
Serum Concentration of Tislelizumab for Participants in the Tislelizumab + cCRT Treatment GroupPredose at Day 1 of Cycles 1, 2, 5, 9, and 17; postdose on Day 1 of Cycles 1 and 5, and EOT visit (Each Cycle is 21 days)Serum concentrations of tislelizumab were collected for participants in the Tislelizumab + cCRT treatment group at predose (within 60 minutes prior to infusion initiation) and postdose (within 30 minutes after the completion of infusion). End of Treatment (EOT) visits occurred within 7 days after the date investigator determined that study treatment would no longer be used, or before the initiation of a new anticancer treatment, whichever occurred first.
Immunogenic Responses to Ociperlimab as Assessed by the Detection of Treatment Emergent Anti-Drug Antibodies (ADAs)Predose (within 60 minutes before dose) on Day 1 of Cycles 1, 2, 5, 9, 17, and the EOT Visit (Each cycle is 21 days). Maximum number of treatment cycles was 19Defined as the sum of treatment-boosted and treatment-induced ADA participants as a proportion percentage of the ADA-evaluable participants population and is synonymous with 'ADA Incidence'. ADA samples were collected for participants randomized to Arm A (ociperlimab and tislelizumab)
Immunogenic Responses to Tislelizumab as Assessed by the Detection of Treatment Emergent Anti-Drug Antibodies (ADAs)Predose (within 60 minutes before dose) on Day 1 of Cycles 1, 2, 5, 9, 17, and the EOT Visit (Each cycle is 21 days, maximum number of treatment cycles was 19)Defined as the sum of treatment-boosted and treatment-induced ADA participants as a proportion percentage of the ADA-evaluable participants population and is synonymous with 'ADA Incidence'. ADA samples were collected for participants randomized to Arm A (Ociperlimab + Tislelizumab + cCRT) and Arm B (Tislelizumab + cCRT)
Programmed Death-Ligand 1 (PD-L1) and T-cell Immunoreceptor With Ig and ITIM Domains (TIGIT) Expression in Archival and/or Fresh Tumor TissuesFrom randomization through to the end of study, planned duration was 20 months
Change From Baseline in Health Related Quality of Life (HRQoL) as Assessed by European Quality of Life-5 Dimensions (EQ-5D-5L)Baseline and Cycle 6 (Each cycle is 21 days)The EuroQol 5D-5L a descriptive system that comprises five dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression. Each dimension has 5 levels: no problems, slight problems, moderate problems, severe problems and extreme problems. The participant is asked to indicate his/her health state by ticking the box next to the most appropriate statement in each of the five dimensions. This decision results in a 1-digit number that expresses the level selected for that dimension. The digits for the five dimensions can be combined into a 5-digit number that describes the participant's health state.

Countries

Australia, China, Spain, Taiwan, United States

Participant flow

Recruitment details

Participants were enrolled in multiple study centers in Taiwan, China, Spain , United States, and Australia. The first participant was consented on June 17th, 2021, and the last participant completed on October 17th, 2023. The decision to terminate the study was made on July 11th, 2023.

Pre-assignment details

This study was initiated under Protocol Amendment (PA) 1. PA 2 was subsequently implemented; however, no participants were enrolled under PA 2 before the study was terminated. PA 2 changed the eligibility criteria, study treatment, study objectives and endpoints and excluded participants enrolled under PA 1 from analysis of the primary and secondary efficacy endpoint analyses.

Participants by arm

ArmCount
Ociperlimab + Tislelizumab + cCRT
Participants enrolled in PA 1 received two cycles of ociperlimab (900 mg) and tislelizumab (200 mg) intravenously every three weeks, combined with concurrent chemoradiotherapy (cCRT). Chemotherapy regimens varied based on investigator discretion, including options such as cisplatin with etoposide, carboplatin with paclitaxel, or platinum-based regimens with pemetrexed for non-squamous histology; alongside radiotherapy. After the cCRT phase, participants continued ociperlimab and tislelizumab treatment for up to one year.
22
Tislelizumab + cCRT
Participants in PA 1 received two cycles of tislelizumab (200 mg) intravenously every three weeks, combined with concurrent chemoradiotherapy (cCRT). The chemotherapy regimen was determined by the investigator and included options like cisplatin with etoposide, carboplatin with paclitaxel, or platinum-based regimens with pemetrexed for non-squamous histology; alongside radiotherapy. Following the cCRT phase, participants continued tislelizumab treatment for up to one year.
19
cCRT Followed by Durvalumab
Participants in PA 1 received two cycles of concurrent chemoradiotherapy (cCRT), followed by durvalumab (10 mg/kg intravenously every 2 weeks, or 1500 mg every 4 weeks if locally approved). The chemotherapy regimen was chosen by the investigator and included options such as cisplatin with etoposide, carboplatin with paclitaxel, or pemetrexed with a platinum agent for non-squamous histology; alongside radiotherapy. After cCRT, participants continued durvalumab treatment for up to one year.
22
Total63

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyDeath848
Overall StudyPhysician Decision010
Overall StudyStudy Terminated by Sponsor131413
Overall StudyWithdrawal by Subject101

Baseline characteristics

CharacteristicOciperlimab + Tislelizumab + cCRTTislelizumab + cCRTcCRT Followed by DurvalumabTotal
Age, Continuous63.4 years
STANDARD_DEVIATION 7.51
62.4 years
STANDARD_DEVIATION 9.27
64.1 years
STANDARD_DEVIATION 7.36
63.3 years
STANDARD_DEVIATION 7.93
Race/Ethnicity, Customized
American Indian or Alaska Native
1 Participants0 Participants0 Participants1 Participants
Race/Ethnicity, Customized
Asian
18 Participants15 Participants18 Participants51 Participants
Race/Ethnicity, Customized
White
4 Participants4 Participants4 Participants12 Participants
Region of Enrollment
Australia
1 participants2 participants0 participants3 participants
Region of Enrollment
China
17 participants12 participants16 participants45 participants
Region of Enrollment
Spain
1 participants1 participants3 participants5 participants
Region of Enrollment
Taiwan
1 participants3 participants2 participants6 participants
Region of Enrollment
United States
2 participants1 participants1 participants4 participants
Sex: Female, Male
Female
3 Participants5 Participants0 Participants8 Participants
Sex: Female, Male
Male
19 Participants14 Participants22 Participants55 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
8 / 224 / 188 / 22
other
Total, other adverse events
22 / 2218 / 1822 / 22
serious
Total, serious adverse events
11 / 228 / 188 / 22

Outcome results

Primary

Progression-Free Survival (PFS) as Assessed by the Independent Review Committee (IRC)

PFS is defined as the time from the date of randomization to the date of first documentation of disease progression as assessed by the IRC per Response Evaluation Criteria in Solid Tumors (RECIST) Version (v) 1.1 or death, whichever occurred first.

Time frame: From randomization through to the end of study, planned duration was 20 months

Population: The primary endpoint was specified in PA 2 and excludes participants enrolled under PA 1. No participants were enrolled under PA 2.

Secondary

Change From Baseline in European Organization for the Research and Treatment of Cancer Quality of Life Questionnaire Core 30 (EORTC QLQ-C30) Global Health Status

Change from baseline in EORTC QLQ-C30 Global Health Status/Quality of Life score. The EORTC QLQ-C30 v3.0 is a questionnaire that assesses quality of life of participants with cancer. It includes global health status and quality of life questions related to overall health in which participants respond based on a 7-point scale, where 1 is very poor and 7 is excellent. Raw scores are transformed into a 0 to 100 scale via linear transformation. A higher score indicates better health outcomes.

Time frame: Baseline and Cycle 6 (Each cycle is 21 days)

Population: This secondary endpoint was specified in PA 2 and excludes participants enrolled under PA 1. No participants were enrolled under PA 2.

Secondary

Change From Baseline in Health Related Quality of Life (HRQoL) as Assessed by European Quality of Life-5 Dimensions (EQ-5D-5L)

The EuroQol 5D-5L a descriptive system that comprises five dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression. Each dimension has 5 levels: no problems, slight problems, moderate problems, severe problems and extreme problems. The participant is asked to indicate his/her health state by ticking the box next to the most appropriate statement in each of the five dimensions. This decision results in a 1-digit number that expresses the level selected for that dimension. The digits for the five dimensions can be combined into a 5-digit number that describes the participant's health state.

Time frame: Baseline and Cycle 6 (Each cycle is 21 days)

Population: This secondary endpoint was specified in PA 2 and excludes participants enrolled under PA 1. No participants were enrolled under PA 2.

Secondary

Change From Baseline in Health Related Quality of Life (HRQoL) as Assessed by Quality of Life Questionnaire-Lung Cancer 13 (QLQ-LC13)

Change from baseline in QLQ-CL13 scores for coughing, dyspnea, and chest pain. The QLQ-LC13 is a questionnaire that measures lung cancer-specific disease and treatment symptoms. It includes questions about specific symptoms in which participants respond based on a 4-point scale, where 1 is not at all and 4 is very much. Raw scores are transformed into a 0 to 100 scale via linear transformation. A lower score indicates an improvement in symptoms.

Time frame: Baseline and Cycle 6 (Each cycle is 21 days)

Population: This secondary endpoint was specified in PA 2 and excludes participants enrolled under PA 1. No participants were enrolled under PA 2.

Secondary

Duration of Response (DOR)

defined as the time from the first determination of a confirmed objective response assessed by both the IRC and investigators per RECIST v1.1 until the first documentation of disease progression or death, whichever occurs first

Time frame: From randomization through to the end of study, planned duration was 20 months

Population: This secondary endpoint was specified in PA 2 and excludes participants enrolled under PA 1. No participants were enrolled under PA 2.

Secondary

Immunogenic Responses to Ociperlimab as Assessed by the Detection of Treatment Emergent Anti-Drug Antibodies (ADAs)

Defined as the sum of treatment-boosted and treatment-induced ADA participants as a proportion percentage of the ADA-evaluable participants population and is synonymous with 'ADA Incidence'. ADA samples were collected for participants randomized to Arm A (ociperlimab and tislelizumab)

Time frame: Predose (within 60 minutes before dose) on Day 1 of Cycles 1, 2, 5, 9, 17, and the EOT Visit (Each cycle is 21 days). Maximum number of treatment cycles was 19

Population: The Immunogenicity Analysis Set includes all participants who received any dose of any component of study drugs and for whom both baseline antidrug antibody (ADA) and at least 1 postbaseline ADA result were available.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Ociperlimab + Tislelizumab + cCRTImmunogenic Responses to Ociperlimab as Assessed by the Detection of Treatment Emergent Anti-Drug Antibodies (ADAs)0 Participants
Secondary

Immunogenic Responses to Tislelizumab as Assessed by the Detection of Treatment Emergent Anti-Drug Antibodies (ADAs)

Defined as the sum of treatment-boosted and treatment-induced ADA participants as a proportion percentage of the ADA-evaluable participants population and is synonymous with 'ADA Incidence'. ADA samples were collected for participants randomized to Arm A (Ociperlimab + Tislelizumab + cCRT) and Arm B (Tislelizumab + cCRT)

Time frame: Predose (within 60 minutes before dose) on Day 1 of Cycles 1, 2, 5, 9, 17, and the EOT Visit (Each cycle is 21 days, maximum number of treatment cycles was 19)

Population: The Immunogenicity Analysis Set includes all participants who received any dose of any component of study drugs and for whom both baseline antidrug antibody (ADA) and at least 1 postbaseline ADA result were available.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Ociperlimab + Tislelizumab + cCRTImmunogenic Responses to Tislelizumab as Assessed by the Detection of Treatment Emergent Anti-Drug Antibodies (ADAs)10 Participants
Tislelizumab + cCRTImmunogenic Responses to Tislelizumab as Assessed by the Detection of Treatment Emergent Anti-Drug Antibodies (ADAs)5 Participants
Secondary

Number of Participants Experiencing Adverse Events (AEs)

Number of participants with treatment-emergent adverse events (TEAEs) and serious adverse events (SAEs) determined according to National Cancer Institute Common Terminology Criteria for Adverse Events Version 5.0 (NCI CTCAE v5.0)

Time frame: From first dose to 30 days after the last dose or initiation of a new anticancer therapy, whichever occured first; through study completion data cut-off date of October 17th, 2023 (maximum time on treatment was 16 months)

Population: The Safety Analysis Set included all randomized patients who received any dose of study treatment.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Ociperlimab + Tislelizumab + cCRTNumber of Participants Experiencing Adverse Events (AEs)TEAEs22 Participants
Ociperlimab + Tislelizumab + cCRTNumber of Participants Experiencing Adverse Events (AEs)SAEs11 Participants
Tislelizumab + cCRTNumber of Participants Experiencing Adverse Events (AEs)TEAEs18 Participants
Tislelizumab + cCRTNumber of Participants Experiencing Adverse Events (AEs)SAEs8 Participants
cCRT Followed by DurvalumabNumber of Participants Experiencing Adverse Events (AEs)TEAEs22 Participants
cCRT Followed by DurvalumabNumber of Participants Experiencing Adverse Events (AEs)SAEs8 Participants
Secondary

Overall Response Rate (ORR)

Defined as the percentage of participants who achieved a complete response (CR) or partial response (PR) assessed by both the IRC and investigators per RECIST v1.1.

Time frame: From randomization through to the end of study, planned duration was 20 months

Population: This secondary endpoint was specified in PA 2 and excludes participants enrolled under PA 1. No participants were enrolled under PA 2.

Secondary

Overall Survival (OS)

Defined as the time from the date of randomization until the date of death due to any cause

Time frame: From randomization through to the end of study, planned duration was 20 months

Population: This secondary endpoint was specified in PA 2 and excludes participants enrolled under PA 1. No participants were enrolled under PA 2.

Secondary

Programmed Death-Ligand 1 (PD-L1) and T-cell Immunoreceptor With Ig and ITIM Domains (TIGIT) Expression in Archival and/or Fresh Tumor Tissues

Time frame: From randomization through to the end of study, planned duration was 20 months

Population: This secondary endpoint was specified in PA 2 and excludes participants enrolled under PA 1. No participants were enrolled under PA 2.

Secondary

Progression-Free Survival 2 (PFS2)

defined as the time from randomization to the disease progression after next line of treatment, or death from any cause, whichever occurs first

Time frame: From randomization through to the end of study, planned duration was 20 months

Population: This secondary endpoint was specified in PA 2 and excludes participants enrolled under PA 1. No participants were enrolled under PA 2.

Secondary

Serum Concentration of Ociperlimab

Serum concentrations of ociperlimab were measured for participants in the Ociperlimab + Tislelizumab + cCRT treatment group at predose (within 60 minutes before starting infusion) and postdose (within 30 minutes after the end of infusion). End of Treatment (EOT) visits occurred within 7 days after the date the investigator determined that study treatment would no longer be used, or before the initiation of a new anticancer treatment, whichever occurred first.

Time frame: Predose at Day 1 of Cycles 1, 2, 5, 9, and 17; postdose on Day 1 of Cycles 1, 5 and EOT visit (Each Cycle was 21 days)

Population: The Pharmacokinetics (PK) Analysis Set includes all patients who receive any dose of any component of study drugs and for whom any postdose PK data are available.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Ociperlimab + Tislelizumab + cCRTSerum Concentration of OciperlimabCycle 9 Day 152.4 ug/mlGeometric Coefficient of Variation 82.4
Ociperlimab + Tislelizumab + cCRTSerum Concentration of OciperlimabCycle 17 Day 181.35 ug/mlGeometric Coefficient of Variation 53.83
Ociperlimab + Tislelizumab + cCRTSerum Concentration of OciperlimabCycle 1 Day 118 ug/ml
Ociperlimab + Tislelizumab + cCRTSerum Concentration of OciperlimabCycle 5 Day 174.86 ug/mlGeometric Coefficient of Variation 61.76
Ociperlimab + Tislelizumab + cCRTSerum Concentration of OciperlimabCycle 2 Day 134.54 ug/mlGeometric Coefficient of Variation 63.19
Tislelizumab + cCRTSerum Concentration of OciperlimabEnd of Treatment94.94 ug/mlGeometric Coefficient of Variation 232.05
Tislelizumab + cCRTSerum Concentration of OciperlimabCycle 1 Day 1312 ug/mlGeometric Coefficient of Variation 45.82
Tislelizumab + cCRTSerum Concentration of OciperlimabCycle 5 Day 1339.31 ug/mlGeometric Coefficient of Variation 38.21
Secondary

Serum Concentration of Tislelizumab for Participants in the Ociperlimab + Tislelizumab + cCRT Treatment Group

Serum concentrations of tislelizumab were collected for participants in the Ociperlimab + Tislelizumab + cCRT treatment group at predose (within 60 minutes before starting infusion) and postdose (within 30 minutes after the end of infusion). End of Treatment (EOT) visits occurred within 7 days after the date investigator determined that study treatment would no longer be used, or before the initiation of a new anticancer treatment, whichever occurred first.

Time frame: Predose at Day 1 of Cycles 1, 2, 5, 9, 17; postdose on Day 1 of Cycles 1 and 5, and EOT visit (each cycle was 21 days)

Population: PK Analysis Set

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Ociperlimab + Tislelizumab + cCRTSerum Concentration of Tislelizumab for Participants in the Ociperlimab + Tislelizumab + cCRT Treatment GroupCycle 9 Day 130.22 ug/mLGeometric Coefficient of Variation 55.34
Ociperlimab + Tislelizumab + cCRTSerum Concentration of Tislelizumab for Participants in the Ociperlimab + Tislelizumab + cCRT Treatment GroupCycle 17 Day 132.24 ug/mLGeometric Coefficient of Variation 156.53
Ociperlimab + Tislelizumab + cCRTSerum Concentration of Tislelizumab for Participants in the Ociperlimab + Tislelizumab + cCRT Treatment GroupCycle 1 Day 1NA ug/mL
Ociperlimab + Tislelizumab + cCRTSerum Concentration of Tislelizumab for Participants in the Ociperlimab + Tislelizumab + cCRT Treatment GroupCycle 5 Day 134.10 ug/mLGeometric Coefficient of Variation 49.67
Ociperlimab + Tislelizumab + cCRTSerum Concentration of Tislelizumab for Participants in the Ociperlimab + Tislelizumab + cCRT Treatment GroupCycle 2 Day 115.91 ug/mLGeometric Coefficient of Variation 78.83
Tislelizumab + cCRTSerum Concentration of Tislelizumab for Participants in the Ociperlimab + Tislelizumab + cCRT Treatment GroupEnd of Treatment49.55 ug/mLGeometric Coefficient of Variation 89.19
Tislelizumab + cCRTSerum Concentration of Tislelizumab for Participants in the Ociperlimab + Tislelizumab + cCRT Treatment GroupCycle 1 Day 172.20 ug/mLGeometric Coefficient of Variation 26.27
Tislelizumab + cCRTSerum Concentration of Tislelizumab for Participants in the Ociperlimab + Tislelizumab + cCRT Treatment GroupCycle 5 Day 197.08 ug/mLGeometric Coefficient of Variation 23.09
Secondary

Serum Concentration of Tislelizumab for Participants in the Tislelizumab + cCRT Treatment Group

Serum concentrations of tislelizumab were collected for participants in the Tislelizumab + cCRT treatment group at predose (within 60 minutes prior to infusion initiation) and postdose (within 30 minutes after the completion of infusion). End of Treatment (EOT) visits occurred within 7 days after the date investigator determined that study treatment would no longer be used, or before the initiation of a new anticancer treatment, whichever occurred first.

Time frame: Predose at Day 1 of Cycles 1, 2, 5, 9, and 17; postdose on Day 1 of Cycles 1 and 5, and EOT visit (Each Cycle is 21 days)

Population: PK Analysis Set; Tislelizumab concentration data are reported here for participants in the Tislelizumab + cCRT treatment group. Only participants with available data are included at each time point.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Ociperlimab + Tislelizumab + cCRTSerum Concentration of Tislelizumab for Participants in the Tislelizumab + cCRT Treatment GroupCycle 9 Day 136.98 ug/mLGeometric Coefficient of Variation 39.63
Ociperlimab + Tislelizumab + cCRTSerum Concentration of Tislelizumab for Participants in the Tislelizumab + cCRT Treatment GroupCycle 17 Day 141.29 ug/mLGeometric Coefficient of Variation 55.41
Ociperlimab + Tislelizumab + cCRTSerum Concentration of Tislelizumab for Participants in the Tislelizumab + cCRT Treatment GroupCycle 1 Day 1NA ug/mL
Ociperlimab + Tislelizumab + cCRTSerum Concentration of Tislelizumab for Participants in the Tislelizumab + cCRT Treatment GroupCycle 5 Day 137.64 ug/mLGeometric Coefficient of Variation 47
Ociperlimab + Tislelizumab + cCRTSerum Concentration of Tislelizumab for Participants in the Tislelizumab + cCRT Treatment GroupCycle 2 Day 119.69 ug/mLGeometric Coefficient of Variation 27.01
Tislelizumab + cCRTSerum Concentration of Tislelizumab for Participants in the Tislelizumab + cCRT Treatment GroupEnd of Treatment40.18 ug/mLGeometric Coefficient of Variation 139.51
Tislelizumab + cCRTSerum Concentration of Tislelizumab for Participants in the Tislelizumab + cCRT Treatment GroupCycle 1 Day 173.41 ug/mLGeometric Coefficient of Variation 18.53
Tislelizumab + cCRTSerum Concentration of Tislelizumab for Participants in the Tislelizumab + cCRT Treatment GroupCycle 5 Day 1100.26 ug/mLGeometric Coefficient of Variation 29.25
Secondary

Time to Death or Distant Metastasis (TTDM) as Assessed by the Investigator

defined as the time from the date of randomization until the first date of distant metastasis assessed by both the IRC and investigators, or death. Distant metastasis is defined as any new lesion that is outside of the radiation field per RECIST v1.1 or proven by biopsy.

Time frame: From randomization through to the end of study, planned duration was 20 months

Population: This secondary endpoint was specified in PA 2 and excludes participants enrolled under PA 1. No participants were enrolled under PA 2.

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026