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An Investigational Immuno-therapy Study of Temozolomide Plus Radiation Therapy With Nivolumab or Placebo, for Newly Diagnosed Patients With Glioblastoma (GBM, a Malignant Brain Cancer)

A Randomized Phase 3 Single Blind Study of Temozolomide Plus Radiation Therapy Combined With Nivolumab or Placebo in Newly Diagnosed Adult Subjects With MGMT-Methylated (Tumor O6-methylguanine DNA Methyltransferase) Glioblastoma

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02667587
Acronym
CheckMate548
Enrollment
716
Registered
2016-01-29
Start date
2016-05-09
Completion date
2024-04-09
Last updated
2025-06-18

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

Conditions

Brain Neoplasms

Brief summary

The purpose of this study is to evaluate patients with glioblastoma that is MGMT-methylated (the MGMT gene is altered by a chemical change). Patients will receive temozolomide plus radiation therapy. They will be compared to patients receiving nivolumab in addition to temozolomide plus radiation therapy.

Interventions

DRUGNivolumab
DRUGTemozolomide
RADIATIONRadiotherapy

Sponsors

Ono Pharmaceutical Co. Ltd
CollaboratorINDUSTRY
Bristol-Myers Squibb
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

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

Inclusion criteria

For more information regarding Bristol-Myers Squibb Clinical Trial participation, please visit www.BMSStudyConnect.com Inclusion Criteria: * Males and Females, age ≥ 18 years old * Newly diagnosed brain cancer or tumor called glioblastoma or GBM * Karnofsky performance status of ≥ 70 (able to take care of self) * Substantial recovery from surgery resection * Tumor test result shows MGMT methylated or indeterminate tumor subtype

Exclusion criteria

* Biopsy-only of GBM with less than 20% of tumor removed * Prior treatment for GBM (other than surgical resection) * Any known tumor outside of the brain * Recurrent or secondary GBM * Active known or suspected autoimmune disease Other protocol defined inclusion/

Design outcomes

Primary

MeasureTime frameDescription
Progression-free Survival (PFS) Determined by BICRFrom randomization to the date of the first documented tumor progression or death by any cause. (up to approximately 4.5 years)The time from randomization to the date of the first documented tumor progression or death by any cause. PFS will be determined by a Blinded Independent Central Review (BICR) assessed based on Radiologic Assessment in Neuro-Oncology (RANO) criteria. Specifically, RANO response criteria indicates that within the first 12 weeks of completion of radiotherapy, progression can only be assessed if the majority of the new enhancement is outside of the radiation field or if there is pathologic confirmation of progressive disease.
Overall Survival (OS)From randomization to date of death (up to approximately 4.5 years)The time from the date of randomization to the date of death. who have not died by the end of the study will be censored to last known date alive. OS is assessed in the randomized population with no corticosteroids at baseline population and in the overall randomized population.

Secondary

MeasureTime frameDescription
Overall Survival (OS) Rates at 12 MonthsFrom randomization to 12 months after first doseOverall Survival (OS) rate is defined as the percentage of participants surviving at 12 months
Overall Survival (OS) Rates at 24 MonthsFrom randomization to 24 months after first doseOverall Survival (OS) rate is defined as the percentage of participants surviving at 24 months
Progression Free Survival (PFS) Based on Investigator AssessmentFrom randomization to the date of the first documented tumor progression or death by any cause. (up to approximately 4.5 years)The time from randomization to the date of the first documented tumor progression or death by any cause. PFS will be determined by investigator assessment based Radiologic Assessment in Neuro-Oncology (RANO) criteria. Specifically, RANO response criteria indicates that within the first 12 weeks of completion of radiotherapy, progression can only be assessed if the majority of the new enhancement is outside of the radiation field or if there is pathologic confirmation of progressive disease.

Countries

Australia, Austria, Belgium, Canada, Denmark, France, Germany, Israel, Italy, Japan, Netherlands, Norway, Poland, Russia, Spain, Sweden, Switzerland, United Kingdom, United States

Participant flow

Pre-assignment details

716 participants were randomized into the study, 709 participants received study treatment

Participants by arm

ArmCount
Radiotherapy, Temozolomide Plus Nivolumab
Nivolumab: specified dose on specified days; IV (intravenous) infusion Temozolomide: 75 mg (milligram)/meter squared daily during Radiotherapy, 4 week treatment break, 150 mg/meter squared Day 1-5 for Cycle 1 and increased to 200 mg/meter squared Day 1-5 for Cycle2-Cycle 6 as tolerated; orally (additional cycles may be permitted with approval of sponsor) Radiotherapy: 2 gray units (joule of radiation energy per kilogram) 5 times per week for 6 weeks
358
Radiotherapy, Temozolomide Plus Placebo
Radiotherapy: A total dose of 60 Gy \[Gray (radiotherapy dose)\], in 2 Gy daily fractions on 5 days/week, will be administered in 6 weeks (30 fractions). Placebo: administered intravenously (IV) as a 30 minute infusion every 2 weeks for 8 doses followed by a 30 minute infusion every 4 weeks beginning after 8 doses Temozolomide: 75 mg/m2 orally daily during radiation therapy followed by 4 week break then 6 (28-day) cycles temozolomide on Days 1-5 at 150 mg/m2 in Cycle 1 increasing to 200 mg/m2 as tolerated up to 6 cycles.
358
Total716

Withdrawals & dropouts

PeriodReasonFG000FG001
End of Treatmentadministrative reason by sponsor129
End of TreatmentAdverse Event Unrelated to Study Drug1920
End of TreatmentDeath21
End of TreatmentDisease Progression193226
End of TreatmentLost to Follow-up12
End of Treatmentmaximum clinical benefit44
End of Treatmentother reasonse2110
End of Treatmentparticipant no longer meets study criteria11
End of Treatmentparticipant request to discontinue treatment3335
End of Treatmentparticipant withdrew consent56
End of Treatmentpoor or non compliant01
End of TreatmentStudy Drug Toxicity7519
Pre-TreatmentAdverse event unrelated to study drug10
Pre-TreatmentNot reported10
Pre-TreatmentParticipant no longer meets study criteria22
Pre-TreatmentParticipant withdrew consent01

Baseline characteristics

CharacteristicRadiotherapy, Temozolomide Plus NivolumabRadiotherapy, Temozolomide Plus PlaceboTotal
Age, Continuous57.9 Years
STANDARD_DEVIATION 12.2
58.7 Years
STANDARD_DEVIATION 11.4
58.3 Years
STANDARD_DEVIATION 11.8
Ethnicity (NIH/OMB)
Hispanic or Latino
7 Participants11 Participants18 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
171 Participants178 Participants349 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
180 Participants169 Participants349 Participants
Race/Ethnicity, Customized
Asian
35 Participants33 Participants68 Participants
Race/Ethnicity, Customized
Black or African American
4 Participants4 Participants8 Participants
Race/Ethnicity, Customized
Not Reported
1 Participants0 Participants1 Participants
Race/Ethnicity, Customized
Other
17 Participants3 Participants20 Participants
Race/Ethnicity, Customized
White
301 Participants318 Participants619 Participants
Sex: Female, Male
Female
153 Participants161 Participants314 Participants
Sex: Female, Male
Male
205 Participants197 Participants402 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
263 / 358255 / 358
other
Total, other adverse events
351 / 355343 / 354
serious
Total, serious adverse events
259 / 355217 / 354

Outcome results

Primary

Overall Survival (OS)

The time from the date of randomization to the date of death. who have not died by the end of the study will be censored to last known date alive. OS is assessed in the randomized population with no corticosteroids at baseline population and in the overall randomized population.

Time frame: From randomization to date of death (up to approximately 4.5 years)

Population: All randomized participants

ArmMeasureGroupValue (MEDIAN)
Radiotherapy, Temozolomide Plus NivolumabOverall Survival (OS)All randomized participants28.91 Months
Radiotherapy, Temozolomide Plus NivolumabOverall Survival (OS)All randomized participants without baseline corticosteroids31.34 Months
Radiotherapy, Temozolomide Plus PlaceboOverall Survival (OS)All randomized participants32.07 Months
Radiotherapy, Temozolomide Plus PlaceboOverall Survival (OS)All randomized participants without baseline corticosteroids32.99 Months
Comparison: All Randomized No Baseline Corticosteroids Participantsp-value: 0.340296.39% CI: [0.87, 1.43]Log Rank
Comparison: All Randomized Participants95% CI: [0.91, 1.33]
Primary

Progression-free Survival (PFS) Determined by BICR

The time from randomization to the date of the first documented tumor progression or death by any cause. PFS will be determined by a Blinded Independent Central Review (BICR) assessed based on Radiologic Assessment in Neuro-Oncology (RANO) criteria. Specifically, RANO response criteria indicates that within the first 12 weeks of completion of radiotherapy, progression can only be assessed if the majority of the new enhancement is outside of the radiation field or if there is pathologic confirmation of progressive disease.

Time frame: From randomization to the date of the first documented tumor progression or death by any cause. (up to approximately 4.5 years)

Population: All randomized participants

ArmMeasureValue (MEDIAN)
Radiotherapy, Temozolomide Plus NivolumabProgression-free Survival (PFS) Determined by BICR10.64 Months
Radiotherapy, Temozolomide Plus PlaceboProgression-free Survival (PFS) Determined by BICR10.32 Months
95% CI: [0.9, 1.25]
Secondary

Overall Survival (OS) Rates at 12 Months

Overall Survival (OS) rate is defined as the percentage of participants surviving at 12 months

Time frame: From randomization to 12 months after first dose

Population: All randomized participants

ArmMeasureValue (NUMBER)
Radiotherapy, Temozolomide Plus NivolumabOverall Survival (OS) Rates at 12 Months82.7 percentage of participants
Radiotherapy, Temozolomide Plus PlaceboOverall Survival (OS) Rates at 12 Months87.7 percentage of participants
Secondary

Overall Survival (OS) Rates at 24 Months

Overall Survival (OS) rate is defined as the percentage of participants surviving at 24 months

Time frame: From randomization to 24 months after first dose

Population: All randomized participants

ArmMeasureValue (NUMBER)
Radiotherapy, Temozolomide Plus NivolumabOverall Survival (OS) Rates at 24 Months55.9 percentage of participants
Radiotherapy, Temozolomide Plus PlaceboOverall Survival (OS) Rates at 24 Months63.3 percentage of participants
Secondary

Progression Free Survival (PFS) Based on Investigator Assessment

The time from randomization to the date of the first documented tumor progression or death by any cause. PFS will be determined by investigator assessment based Radiologic Assessment in Neuro-Oncology (RANO) criteria. Specifically, RANO response criteria indicates that within the first 12 weeks of completion of radiotherapy, progression can only be assessed if the majority of the new enhancement is outside of the radiation field or if there is pathologic confirmation of progressive disease.

Time frame: From randomization to the date of the first documented tumor progression or death by any cause. (up to approximately 4.5 years)

Population: All randomized participants

ArmMeasureValue (MEDIAN)
Radiotherapy, Temozolomide Plus NivolumabProgression Free Survival (PFS) Based on Investigator Assessment14.09 Months
Radiotherapy, Temozolomide Plus PlaceboProgression Free Survival (PFS) Based on Investigator Assessment15.18 Months
Post Hoc

Overall Survival (OS) - Extended Collection

The time from the date of randomization to the date of death. who have not died by the end of the study will be censored to last known date alive. OS is assessed in the randomized population with no corticosteroids at baseline population.

Time frame: From randomization to date of death (up to approximately 82 Months)

Population: All randomized participants with no baseline corticosteroids

ArmMeasureValue (MEDIAN)
Radiotherapy, Temozolomide Plus NivolumabOverall Survival (OS) - Extended Collection28.94 Months
Radiotherapy, Temozolomide Plus PlaceboOverall Survival (OS) - Extended Collection31.84 Months
95% CI: [0.89, 1.26]Log Rank
Post Hoc

Progression-free Survival (PFS) Determined by BICR - Extended Collection

The time from randomization to the date of the first documented tumor progression or death by any cause. PFS will be determined by a Blinded Independent Central Review (BICR) assessed based on Radiologic Assessment in Neuro-Oncology (RANO) criteria. Specifically, RANO response criteria indicates that within the first 12 weeks of completion of radiotherapy, progression can only be assessed if the majority of the new enhancement is outside of the radiation field or if there is pathologic confirmation of progressive disease.

Time frame: From randomization to the date of the first documented tumor progression or death by any cause. (up to approximately 82 Months)

Population: All randomized participants

ArmMeasureValue (MEDIAN)
Radiotherapy, Temozolomide Plus NivolumabProgression-free Survival (PFS) Determined by BICR - Extended Collection9.89 Months
Radiotherapy, Temozolomide Plus PlaceboProgression-free Survival (PFS) Determined by BICR - Extended Collection10.25 Months
95% CI: [0.99, 1.4]

Source: ClinicalTrials.gov · Data processed: Mar 1, 2026