Skip to content

A Study of Xevinapant (Debio 1143) in Combination With Platinum-Based Chemotherapy and Standard Fractionation Intensity-Modulated Radiotherapy in Participants With Locally Advanced Squamous Cell Carcinoma of the Head and Neck, Suitable for Definitive Chemoradiotherapy (TrilynX)

A Randomized, Double-Blind Placebo-Controlled, Phase 3 Study of Debio 1143 in Combination With Platinum-Based Chemotherapy and Standard Fractionation Intensity-Modulated Radiotherapy in Patients With Locally Advanced Squamous Cell Carcinoma of the Head and Neck, Suitable for Definitive Chemoradiotherapy (TrilynX)

Status
Terminated
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04459715
Enrollment
730
Registered
2020-07-07
Start date
2020-08-07
Completion date
2024-09-18
Last updated
2025-10-08

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

Conditions

Squamous Cell Carcinoma of the Head and Neck

Keywords

TrilynX

Brief summary

The primary objective of the study was to demonstrate superior efficacy of Xevinapant (Debio 1143) vs placebo when added to chemoradiotherapy (CRT) in locally advanced squamous cell carcinoma of the head and neck (LA-SCCHN).

Interventions

Xevinapant (Debio 1143) administrated as oral solution from Day 1 to 14, every 21-day cycle.

DRUGCisplatin

Cisplatin administered as an IV infusion every 3 weeks (Q3W).

RADIATIONIntensity Modulation Radiation Therapy (IMRT)

70 Gy given in 35 fractions over 7 weeks.

DRUGPlacebo

Matched placebo administrated as oral solution from Day 1 to 14, every 21-day cycle.

Sponsors

GORTEC (Head and Neck Oncology and Radiotherapy Group)
CollaboratorUNKNOWN
Merck KGaA, Darmstadt, Germany
CollaboratorINDUSTRY
EMD Serono Research & Development Institute, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

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

Inclusion criteria

* Eastern Cooperative Oncology Group performance status (ECOG PS) 0 or 1 * Histologically confirmed diagnosis of previously untreated Locally Advanced Squamous Cell Carcinoma of the Head and Neck (LA-SCCHN) participant (stage III, IVa or IVb according to the American Joint Committee on Cancer(AJCC))/Classification of malignant tumors: T=size of the primary tumor, N=regional lymph node involvement, M=distant metastasis (TNM) Staging System, 8th Edition.) suitable for definitive ChemoRadiotherapy (CRT), of at least one of the following sites: oropharynx, hypopharynx and larynx * For OroPharyngeal Cancer (OPC) participants, primary tumors must be human papillomavirus (HPV)-negative as determined by p16 expression using immunohistochemistry * Evaluable tumor burden (measurable and/or non-measurable tumor lesions) assessed by computed tomography scan (CT-scan) or magnetic resonance imaging (MRI), based on Response evaluation criteria in solid tumors (RECIST) version 1.1 * Peripheral neuropathy less than (\<) grade 2 * Adequate hematologic, renal and hepatic function * Other protocol defined inclusion criteria may apply

Exclusion criteria

* Primary tumor of nasopharynx, paranasal sinuses, nasal or oral cavity, salivary, thyroid or parathyroid gland pathologies, skin or unknown primary site * Metastatic disease (stage IVc as per AJCC/TNM, 8th Ed.) * Prior definitive or adjuvant Radiotherapy (RT) and/or radical surgery to the head and neck region which may jeopardize the primary tumor irradiation plan, or any other prior SCCHN systemic treatment, including investigational agents * Documented weight loss of \>10% during the last 4 weeks prior to randomization (unless adequate measures are undertaken for nutritional support), OR plasmatic albumin \< 3.0 g/dL. No albumin transfusions are allowed within 2 weeks before randomization * Known allergy to Xevinapant (Debio 1143), cisplatin, carboplatin, other platinum-based agent or any excipient known to be present in any of these products or in the placebo formulation * other protocol defined

Design outcomes

Primary

MeasureTime frameDescription
Event-Free Survival (EFS) as Assessed by Blinded Independent Review Committee (BIRC)From randomization to the earliest between any EFS event or End of Study (EOS) (up to 188 weeks and 5 days)Event-Free Survival (EFS) as assessed by BIRC is the time from randomization to the first of: (1) Death from any cause; (2) Progression: either radiological (per RECIST v1.1) or clinical (with/without radiologic proof, assessed endoscopically); (3) Primary treatment failure prior to complete response (CR): requirement for radical salvage surgery at primary tumor site with viable tumor confirmed histologically, even without RECIST progression; (4) Relapse after CR (locoregional): including radical salvage surgery or elective neck dissection/biopsy more than equal to (\>=) 22 weeks post-randomization showing viable tumor cells regardless of radiologic status; (5) Second cancers, unless histology excludes squamous origin. Calculated via Kaplan Meier method.

Secondary

MeasureTime frameDescription
Progression Free Survival (PFS) According to Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 as Assessed by Blinded Independent Review Committee (BIRC)From randomization to the first occurrence of progression (radiological or clinical, as assessed by the BIRC) or death from any cause or EOS (up to 188 weeks and 5 days )PFS according to RECIST v1.1 defined as the time from randomization to the first occurrence of progression (radiological or clinical, as assessed by the BIRC) or death from any cause. According to RECIST 1.1, progressive disease (PD) was defined as a 20% relative increase in the sum of diameters (SOD) of target lesions, taking as reference the nadir SOD and an absolute increase of \>5 millimeter (mm) in the SOD, or the appearance of new lesions. Calculated via Kaplan Meier method.
Locoregional Control (LRC) TimeFrom randomization to the first occurrence of progression at the site of the primary tumor or the locoregional lymph nodes or End Of Study (EOS) (188 weeks and 5 days)LRC time is defined as the time from randomization to the first occurrence of progression at the site of the primary tumor or the locoregional lymph nodes, either according to RECIST v1.1 or based on clinical assessment (radiological or clinical, as assessed by the Investigator). According to RECIST 1.1, progressive disease (PD) was defined as a 20% relative increase in the sum of diameters (SOD) of target lesions, taking as reference the nadir SOD and an absolute increase of \>5 millimeter (mm) in the SOD, or the appearance of new lesions. Calculated via Kaplan Meier method.
Objective Response Rate (ORR) as Assessed by BIRCAt 9 and 12 months post randomizationObjective response rate was defined as percentage of participants with either a confirmed complete response (CR) or partial response (PR). CR: Disappearance of all target and non-target lesions. PR: At least a 30 percent (%) decrease in the sum of diameters of target lesions, taking as reference the baseline sum of their diameters, and no unequivocal progression of non-target lesions. Progression is defined as at least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on the study, or unequivocal progression of non-target lesions, or appearance of any new lesion.
Complete Response Rate (CRR)At 9 and 12 months post randomizationCRR defined as the number of participants with Complete Response by RECIST v1.1, as assessed by the BIRC. Complete response is defined as disappearance of all target and non-target lesions.
Duration of Response (DOR)Time from first evidence of response to the first occurrence of progression or death from any cause, assessed up to 24 monthsDuration of response (DoR) defined as the time from the first evidence of response (partial or complete, as assessed by the BIRC according to RECIST v1.1) to the first occurrence of progression (radiological or clinical, as assessed by the BIRC) or death from any cause. Kaplan Meier method was used for calculation.
Number of Participants With Radical Salvage SurgeryAt 9, 12, 24 and 36 months post randomizationNumber of Participants with Radical Salvage Surgery (excluding elective neck dissection without anatomopathological evidence of residual malignant cells) was reported.
Time to Subsequent Systemic Cancer TreatmentsUp to 188 weeks and 5 days post randomizationTime to new subsequent systemic cancer treatment (in months) was derived as (date of event/censoring - randomization date +1) / 30.4375. Calculated via kaplan meier method.
Number of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious TEAEs, Adverse Events (AEs) of Special InterestFrom signed informed consent to EOS (up to 188 weeks and 5 days)An AE is any unfavorable/unintended sign (e.g., abnormal lab result), symptom or disease temporally linked to study drug, whether or not related. A serious AE leads to death, is life-threatening, causes significant/persistent disability, hospitalization, congenital anomaly, or is medically important. TEAEs include both serious and non-serious AEs after treatment. AESIs are events of clinical interest needing close monitoring. In this study, AESIs include: infusion reactions including hypersensitivity, immune-related AEs, aspartate aminotransferase/alanine transaminase increases, lipase/amylase elevation, acute renal failure, QTcF more than 30 milliseconds above baseline, and ≥Grade 2 inflammatory cutaneous AEs.
Number of Participants With Severity of Grade Greater or Equal to 3 TEAEsFrom signed informed consent to EOS (up to 188 weeks and 5 days)Severity of TEAEs were evaluated using the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version. The grade are as follows: grade 1 : mild grade 2 : moderate grade 3 : severe or medically significant but not immediately life-threatening grade 4 : life threatening or disabling grade 5 : death related to AE.
Change From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsAt Baseline, Cycle 3 Day 1 (C3D1) (combination period), EOT (15 days after last study treatment administration) and baseline upto event free survival (EFS) follow up Month 18 after EOT (max on treatment change)Change from Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, Platelets was reported.
Percent Change From Baseline in Laboratory Parameters: Basophils/Leukocytes, Eosinophils/Leukocytes, Lymphocytes/Leukocytes, Monocytes/Leukocytes, Neutrophils/LeukocytesAt Cycle 3 Day 1 (C3D1) (combination period), EOT (15 days after last study treatment administration) and baseline upto event free survival (EFS) follow up Month 18 after EOT (max on treatment change)Change from Baseline in Laboratory Parameters: Basophils/Leukocytes, Eosinophils/Leukocytes, Lymphocytes/Leukocytes, Monocytes/Leukocytes, Neutrophils/Leukocytes was reported.
Change From Baseline in Laboratory Parameters: ErythrocytesAt Baseline, Cycle 3 Day 1 (C3D1) (combination period), EOT (15 days after last study treatment administration) and baseline upto event free survival (EFS) follow up Month 18 after EOT (max on treatment change)Change from Baseline in Laboratory Parameters: Erythrocytes was reported.
Change From Baseline in Laboratory Parameters: Hemoglobin, Albumin, ProteinAt Baseline, Cycle 3 Day 1 (C3D1) (combination period), EOT (15 days after last study treatment administration) and baseline upto event free survival (EFS) follow up Month 18 after EOT (max on treatment change)Change from Baseline in Laboratory Parameters: Hemoglobin, Albumin, Protein was reported.
Change From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseAt Baseline, Cycle 3 Day 1 (C3D1) (combination period), EOT (15 days after last study treatment administration) and baseline upto event free survival (EFS) follow up Month 18 after EOT (max on treatment change)Change from Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, Lipase was reported.
Change From Baseline in Laboratory Parameters: Bilirubin, Creatinine, Direct Bilirubin, UrateAt Baseline, Cycle 3 Day 1 (C3D1) (combination period), EOT (15 days after last study treatment administration) and baseline upto event free survival (EFS) follow up Month 18 after EOT (max on treatment change)Change from Baseline in Laboratory Parameters: Bilirubin, Creatinine, Direct Bilirubin, Urate was reported.
Change From Baseline in Laboratory Parameters: C Reactive ProteinAt Baseline, Cycle 3 Day 1 (C3D1) (combination period), EOT (15 days after last study treatment administration) and baseline upto event free survival (EFS) follow up Month 18 after EOT (max on treatment change)Change from Baseline in Laboratory Parameters: C Reactive Protein was reported.
Change From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaAt Baseline, Cycle 3 Day 1 (C3D1) (combination period), EOT (15 days after last study treatment administration) and baseline upto event free survival (EFS) follow up Month 18 after EOT (max on treatment change)Change from Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, Urea was reported.
Change From Baseline in Estimated Glomerular Filtration RateAt Baseline, Cycle 3 Day 1 (C3D1) (combination period), EOT (15 days after last study treatment administration) and baseline upto event free survival (EFS) follow up Month 18 after EOT (max on treatment change)Change from baseline in biochemistry parameter eGFR was reported. The Glomerular Filtration Rate was measured as milliliter per minute per 1.73 square meter (mL/min/1.73m\^2).
Change From Baseline in Activated Partial Thromboplastin Time (PTT)/ Standard and Prothrombin TimeAt Baseline, Cycle 3 Day 1 (C3D1) (combination period), EOT (15 days after last study treatment administration) and baseline upto event free survival (EFS) follow up Month 18 after EOT (max on treatment change)Change from Baseline in coagulation parameter activated PTT/standard and prothrombin Time was reported.
Overall Survival (OS)From randomization to the earliest between death or EOS (up to 188 weeks and 5 days)Overall survival is defined as the time from randomization to the date of death. Calculated via Kaplan Meier method.
Change From Baseline in Prothrombin International Normalized RatioAt Baseline, Cycle 3 Day 1 (C3D1) (combination period), EOT (15 days after last study treatment administration) and baseline upto event free survival (EFS) follow up Month 18 after EOT (max on treatment change)Change from baseline in coagulation parameters prothrombin international normalized ratio was reported.
Change From Baseline in Vital Signs: Systolic Blood Pressure, Diastolic Blood PressureAt Baseline, Cycle 3 Day 1 (C3D1) (combination period), EOT (15 days after last study treatment administration) and baseline upto event free survival (EFS) follow up Month 18 after EOT (max on treatment increase & decrease)Change from Baseline in Vital Signs: Systolic Blood Pressure, Diastolic Blood Pressure was reported.
Change From Baseline in Vital Signs: Heart RateAt Baseline, Cycle 3 Day 1 (C3D1) (combination period), EOT (15 days after last study treatment administration) and baseline upto event free survival (EFS) follow up Month 18 after EOT (max on treatment increase & decrease)Change from Baseline in Vital Signs: Heart Rate was reported.
Change From Baseline in Vital Signs: Respiratory RateAt Baseline, Cycle 3 Day 1 (C3D1) (combination period), EOT (15 days after last study treatment administration) and baseline upto event free survival (EFS) follow up Month 18 after EOT (max on treatment increase & decrease)Change from Baseline in Vital Signs: Respiratory Rate was reported.
Change From Baseline in Vital Signs: Body TemperatureAt Baseline, Cycle 3 Day 1 (C3D1) (combination period), EOT (15 days after last study treatment administration) and baseline upto event free survival (EFS) follow up Month 18 after EOT (max on treatment increase)Change from Baseline in Vital Signs: Body Temperature was reported.
Change From Baseline in Vital Signs: Body WeightAt Baseline, C3D1 (combination period), EOT (15 days after last study treatment administration) and baseline upto event free survival (EFS) follow up Month 18 after EOT (max on treatment increase & decrease)Change from Baseline in Vital Signs: Body Weight was reported.
Change From Baseline in ECG ParametersAt Baseline, and upto event free survival (EFS) follow up Month 18 after EOT (max on treatment increase)The 12-lead ECGs were recorded after the participants have rested for at least 5 minutes in supine position. The parameters included Respiratory Rate (RR), Pulse Rate (PR), QRS, QT and QTcF calculated by the Bazett formula.
Treatment DurationUp to end of study (up to 188weeks and 5 days)Treatment duration is calculated by study treatment component as (last dose date minus first dose date plus x)/7, where x=8 for xevinapant/matched placebo, x=21 for cisplatin/carboplatin, x=3 for IMRT.
Number of Participants Who Completed Cycle 1, 2, 3, 4, 5 and 6Cycle 1, 2, 3, 4, 5 and 6 (each cycle is of 3 weeks)Number of participants who completed cycle 1, 2, 3, 4, 5 or 6 of xevinapant/matched placebo were reported.
Total Cumulative Dose of Xevinapant/ Matched PlaceboUp to end of treatment (Day 134)Total cumulative dose of Xevinapant/ Matched Placebo was reported in form of mean and standard deviation.
Total Cumulative Dose of CisplatinUp to end of treatment (Day 134)Total cumulative dose of cisplatin was reported.
Total Cumulative Dose of CarboplatinUp to end of treatment (Day 134)Total cumulative dose of carboplatin was reported as mean and standard deviation.
Total Cumulative Dose of Intensity-Modulated Radiation Therapy (IMRT)Up to end of treatment (Day 134)Total cumulative dose of IMRT were reported in form of mean and standard deviation.
Overall Dose Intensity of Xevinapant/Matched PlaceboCycle 1, 2, 3, 4 5, 6 (each cycle is of 3 weeks) or End of Treatment (Day 134)Overall dose intensity of Xevinapant/ matched placebo is calculated as the mean of the dose intensities of the individual cycles.
Overall Dose Intensity of CisplatinCycle 1, 2, 3, 4 5, 6 (each cycle is of 3 weeks) or End of Treatment (Day 134)Overall dose intensity of Cisplatin is calculated as the mean of the dose intensities of the individual cycles. This was reported with the unit of measure milligrams per meter square per week (mg/m2/week).
Overall Dose Intensity of CarboplatinCycle 1, 2, 3, 4 5, 6 (each cycle is of 3 weeks) or End of Treatment (Day 134)Overall dose intensity of Carboplatin is calculated as the mean of the dose intensities of the individual cycles. This was reported with unit of measure Milligrams per minute per milliliter per week (mg min/mL/week).
Relative Dose IntensityUp to 50 monthsRelative dose intensity (RDI) represents the percentage of the amount of a drug actually delivered \[actual dose intensity (DI)\] to the amount planned (planned DI). The purpose of calculating RDI is to evaluate whether the planned DI of an anti-cancer treatment was actually achieved which may suggest the feasibility of planned treatment regimen.
Number of Participants With Treatment Interruption, Treatment Reduction and Treatment Discontinuation for Xevinapant/ Matched PlaceboUp to end of treatment (Day 134)Number of participants with Treatment Interruption, Treatment Reduction and Treatment Discontinuation was reported.
Change From Baseline in FibrinogenAt Baseline, Cycle 3 Day 1 (C3D1) (combination period), EOT (15 days after last study treatment administration) and baseline upto event free survival (EFS) follow up Month 18 after EOT (max on treatment change)Change from Baseline in coagulation parameter fibrinogen was reported.

Countries

Argentina, Australia, Austria, Belgium, Brazil, Canada, China, Czechia, France, Georgia, Germany, Greece, Hungary, Israel, Italy, Japan, Poland, Portugal, Russia, South Korea, Spain, Switzerland, Taiwan, Ukraine, United Kingdom, United States

Participant flow

Participants by arm

ArmCount
Sequence 1: Debio 1143 + CRT
Participants received a combination of Debio 1143 along with Chemoradiotherapy (CRT): Radiotherapy +Cisplatin + Xevinapant (Debio 1143). Participants received 6 cycles of oral solution of Xevinapant at a dose of 200 milligrams per day (mg/day) once daily from Day 1 to 14, per 3-week cycle in combination with 70 Gray (Gy) of intensity modulated radiation therapy (IMRT) in 35 fractions, 2 Gy/fraction, over 7 weeks, and High-dose cisplatin (100 mg/m2) on Day 2 of a 3-week cycle per 3 cycles (combination therapy period). If high-dose cisplatin 100 mg/m2 was not tolerated after the first dose, participants could be switched to carboplatin (10mg/mL, iv infusion), followed by 3 cycles of monotherapy of Xevinapant at a dose of 200 mg/day from Day 1 to 14, per 3-week cycle (monotherapy period).
364
Sequence 2: Placebo + CRT
Participants received a combination of placebo matched to Debio 1143 along with Chemoradiotherapy(CRT): Radiotherapy +Cisplatin+ placebo matched to Xevinapant (Debio 1143). Participants received 6 cycles of oral solution of placebo matched to Xevinapant once daily from Day 1 to 14, per 3-week cycle in combination with 70 Gray (Gy) of intensity modulated radiation therapy (IMRT) in 35 fractions, 2 Gy/fraction, over 7 weeks, and High-dose cisplatin (100 mg/m2) on Day 2 of a 3-week cycle per 3 cycles(combination therapy period).If high-dose cisplatin 100 mg/m2 was not tolerated after the first dose, participants could be switched to carboplatin (10mg/mL, iv infusion), followed by 3 cycles of monotherapy of placebo matched to Xevinapant from Day 1 to 14, per 3-week cycle (monotherapy period).
366
Total730

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event33
Overall StudyDeath11193
Overall StudyLost to Follow-up109
Overall StudyOther Reasons45
Overall StudyPROTOCOL DEVIATION01
Overall StudyRANDOMIZED BY MISTAKE01
Overall StudySTUDY TERMINATED BY SPONSOR214232
Overall StudyWithdrawal by Subject2222

Baseline characteristics

CharacteristicSequence 1: Debio 1143 + CRTSequence 2: Placebo + CRTTotal
Age, Continuous60 Years
STANDARD_DEVIATION 8.01
60 Years
STANDARD_DEVIATION 8.53
60 Years
STANDARD_DEVIATION 8.27
Race/Ethnicity, Customized
Ethnicity-Hispanic or Latino
41 Participants46 Participants87 Participants
Race/Ethnicity, Customized
Ethnicity-Not Hispanic or Latino
264 Participants273 Participants537 Participants
Race/Ethnicity, Customized
Ethnicity-Unknown or Not Reported
59 Participants47 Participants106 Participants
Race/Ethnicity, Customized
Race-Asian
59 Participants60 Participants119 Participants
Race/Ethnicity, Customized
Race-Black or African American
5 Participants6 Participants11 Participants
Race/Ethnicity, Customized
Race-Other
5 Participants9 Participants14 Participants
Race/Ethnicity, Customized
Race-Unknown or Not Reported
42 Participants35 Participants77 Participants
Race/Ethnicity, Customized
Race-White
253 Participants256 Participants509 Participants
Sex: Female, Male
Female
64 Participants57 Participants121 Participants
Sex: Female, Male
Male
300 Participants309 Participants609 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
111 / 36493 / 366
other
Total, other adverse events
360 / 364350 / 356
serious
Total, serious adverse events
194 / 364129 / 356

Outcome results

Primary

Event-Free Survival (EFS) as Assessed by Blinded Independent Review Committee (BIRC)

Event-Free Survival (EFS) as assessed by BIRC is the time from randomization to the first of: (1) Death from any cause; (2) Progression: either radiological (per RECIST v1.1) or clinical (with/without radiologic proof, assessed endoscopically); (3) Primary treatment failure prior to complete response (CR): requirement for radical salvage surgery at primary tumor site with viable tumor confirmed histologically, even without RECIST progression; (4) Relapse after CR (locoregional): including radical salvage surgery or elective neck dissection/biopsy more than equal to (\>=) 22 weeks post-randomization showing viable tumor cells regardless of radiologic status; (5) Second cancers, unless histology excludes squamous origin. Calculated via Kaplan Meier method.

Time frame: From randomization to the earliest between any EFS event or End of Study (EOS) (up to 188 weeks and 5 days)

Population: The Intention To Treat (ITT) set included all randomized participants.

ArmMeasureValue (MEDIAN)
Sequence 1: Debio 1143 + CRTEvent-Free Survival (EFS) as Assessed by Blinded Independent Review Committee (BIRC)19.4 months
Sequence 2: Placebo + CRTEvent-Free Survival (EFS) as Assessed by Blinded Independent Review Committee (BIRC)33.1 months
Secondary

Change From Baseline in Activated Partial Thromboplastin Time (PTT)/ Standard and Prothrombin Time

Change from Baseline in coagulation parameter activated PTT/standard and prothrombin Time was reported.

Time frame: At Baseline, Cycle 3 Day 1 (C3D1) (combination period), EOT (15 days after last study treatment administration) and baseline upto event free survival (EFS) follow up Month 18 after EOT (max on treatment change)

Population: The SAF set included all participants who received any dose of any of the study intervention (xevinapant/matched placebo, cisplatin/carboplatin, IMRT). Here overall number of participants analyzed signified participants who were evaluable for this outcome measure and number analyzed signifies participants who were evaluable at specified timepoints.

ArmMeasureGroupValue (MEAN)Dispersion
Sequence 1: Debio 1143 + CRTChange From Baseline in Activated Partial Thromboplastin Time (PTT)/ Standard and Prothrombin TimeActivated PTT/Standard: Baseline26.15 seconds (Sec)Standard Deviation 2.349
Sequence 1: Debio 1143 + CRTChange From Baseline in Activated Partial Thromboplastin Time (PTT)/ Standard and Prothrombin TimeActivated PTT/Standard: C3D1-0.80 seconds (Sec)Standard Deviation 3.132
Sequence 1: Debio 1143 + CRTChange From Baseline in Activated Partial Thromboplastin Time (PTT)/ Standard and Prothrombin TimeActivated PTT/Standard: EOT-0.29 seconds (Sec)Standard Deviation 2.812
Sequence 1: Debio 1143 + CRTChange From Baseline in Activated Partial Thromboplastin Time (PTT)/ Standard and Prothrombin TimeActivated PTT/Standard: Max on-treatment change-1.01 seconds (Sec)Standard Deviation 4.165
Sequence 1: Debio 1143 + CRTChange From Baseline in Activated Partial Thromboplastin Time (PTT)/ Standard and Prothrombin TimeProthrombin Time: Baseline10.50 seconds (Sec)Standard Deviation 0.73
Sequence 1: Debio 1143 + CRTChange From Baseline in Activated Partial Thromboplastin Time (PTT)/ Standard and Prothrombin TimeProthrombin Time: C3D10.11 seconds (Sec)Standard Deviation 1.73
Sequence 1: Debio 1143 + CRTChange From Baseline in Activated Partial Thromboplastin Time (PTT)/ Standard and Prothrombin TimeProthrombin Time: EOT0.17 seconds (Sec)Standard Deviation 1.757
Sequence 1: Debio 1143 + CRTChange From Baseline in Activated Partial Thromboplastin Time (PTT)/ Standard and Prothrombin TimeProthrombin Time: Max on-treatment change0.35 seconds (Sec)Standard Deviation 2.364
Sequence 2: Placebo + CRTChange From Baseline in Activated Partial Thromboplastin Time (PTT)/ Standard and Prothrombin TimeProthrombin Time: Max on-treatment change-0.01 seconds (Sec)Standard Deviation 1.838
Sequence 2: Placebo + CRTChange From Baseline in Activated Partial Thromboplastin Time (PTT)/ Standard and Prothrombin TimeActivated PTT/Standard: Baseline26.25 seconds (Sec)Standard Deviation 2.54
Sequence 2: Placebo + CRTChange From Baseline in Activated Partial Thromboplastin Time (PTT)/ Standard and Prothrombin TimeProthrombin Time: Baseline10.73 seconds (Sec)Standard Deviation 1.696
Sequence 2: Placebo + CRTChange From Baseline in Activated Partial Thromboplastin Time (PTT)/ Standard and Prothrombin TimeActivated PTT/Standard: C3D1-0.91 seconds (Sec)Standard Deviation 2.324
Sequence 2: Placebo + CRTChange From Baseline in Activated Partial Thromboplastin Time (PTT)/ Standard and Prothrombin TimeProthrombin Time: EOT-0.04 seconds (Sec)Standard Deviation 1.697
Sequence 2: Placebo + CRTChange From Baseline in Activated Partial Thromboplastin Time (PTT)/ Standard and Prothrombin TimeActivated PTT/Standard: EOT-0.09 seconds (Sec)Standard Deviation 2.419
Sequence 2: Placebo + CRTChange From Baseline in Activated Partial Thromboplastin Time (PTT)/ Standard and Prothrombin TimeProthrombin Time: C3D1-0.17 seconds (Sec)Standard Deviation 1.543
Sequence 2: Placebo + CRTChange From Baseline in Activated Partial Thromboplastin Time (PTT)/ Standard and Prothrombin TimeActivated PTT/Standard: Max on-treatment change-0.87 seconds (Sec)Standard Deviation 3.509
Secondary

Change From Baseline in ECG Parameters

The 12-lead ECGs were recorded after the participants have rested for at least 5 minutes in supine position. The parameters included Respiratory Rate (RR), Pulse Rate (PR), QRS, QT and QTcF calculated by the Bazett formula.

Time frame: At Baseline, and upto event free survival (EFS) follow up Month 18 after EOT (max on treatment increase)

Population: The SAF set included all participants who received any dose of any of the study intervention (xevinapant/matched placebo, cisplatin/carboplatin, IMRT). Here number analyzed signifies participants who were evaluable at specified timepoints.

ArmMeasureGroupValue (MEAN)Dispersion
Sequence 1: Debio 1143 + CRTChange From Baseline in ECG ParametersQRS Duration: Baseline90.4 millisecondStandard Deviation 14.78
Sequence 1: Debio 1143 + CRTChange From Baseline in ECG ParametersQT Interval: Max on-treatment increase33.3 millisecondStandard Deviation 26.91
Sequence 1: Debio 1143 + CRTChange From Baseline in ECG ParametersPR Interval: Max on-treatment increase15.2 millisecondStandard Deviation 16.48
Sequence 1: Debio 1143 + CRTChange From Baseline in ECG ParametersRR Interval: Baseline824.5 millisecondStandard Deviation 163.43
Sequence 1: Debio 1143 + CRTChange From Baseline in ECG ParametersRR Interval: Max on-treatment increase139.5 millisecondStandard Deviation 125.19
Sequence 1: Debio 1143 + CRTChange From Baseline in ECG ParametersQRS Duration: Max on-treatment increase9.8 millisecondStandard Deviation 9.87
Sequence 1: Debio 1143 + CRTChange From Baseline in ECG ParametersQTcF Interval: Baseline406.3 millisecondStandard Deviation 22.78
Sequence 1: Debio 1143 + CRTChange From Baseline in ECG ParametersPR Interval: Baseline154.6 millisecondStandard Deviation 28.05
Sequence 1: Debio 1143 + CRTChange From Baseline in ECG ParametersQTcF Interval: Max on-treatment increase24.9 millisecondStandard Deviation 21.27
Sequence 1: Debio 1143 + CRTChange From Baseline in ECG ParametersQT Interval: Baseline381.9 millisecondStandard Deviation 30.29
Sequence 2: Placebo + CRTChange From Baseline in ECG ParametersQTcF Interval: Max on-treatment increase19.7 millisecondStandard Deviation 19.17
Sequence 2: Placebo + CRTChange From Baseline in ECG ParametersPR Interval: Baseline159.2 millisecondStandard Deviation 29.85
Sequence 2: Placebo + CRTChange From Baseline in ECG ParametersPR Interval: Max on-treatment increase15.8 millisecondStandard Deviation 19.9
Sequence 2: Placebo + CRTChange From Baseline in ECG ParametersQRS Duration: Baseline91.9 millisecondStandard Deviation 14.48
Sequence 2: Placebo + CRTChange From Baseline in ECG ParametersQRS Duration: Max on-treatment increase9.8 millisecondStandard Deviation 21.97
Sequence 2: Placebo + CRTChange From Baseline in ECG ParametersQT Interval: Baseline385.7 millisecondStandard Deviation 33.47
Sequence 2: Placebo + CRTChange From Baseline in ECG ParametersQT Interval: Max on-treatment increase26.9 millisecondStandard Deviation 21.78
Sequence 2: Placebo + CRTChange From Baseline in ECG ParametersRR Interval: Max on-treatment increase117.2 millisecondStandard Deviation 87.11
Sequence 2: Placebo + CRTChange From Baseline in ECG ParametersQTcF Interval: Baseline406.6 millisecondStandard Deviation 25.06
Sequence 2: Placebo + CRTChange From Baseline in ECG ParametersRR Interval: Baseline858.0 millisecondStandard Deviation 153.3
Secondary

Change From Baseline in Estimated Glomerular Filtration Rate

Change from baseline in biochemistry parameter eGFR was reported. The Glomerular Filtration Rate was measured as milliliter per minute per 1.73 square meter (mL/min/1.73m\^2).

Time frame: At Baseline, Cycle 3 Day 1 (C3D1) (combination period), EOT (15 days after last study treatment administration) and baseline upto event free survival (EFS) follow up Month 18 after EOT (max on treatment change)

Population: The SAF set included all participants who received any dose of any of the study intervention (xevinapant/matched placebo, cisplatin/carboplatin, IMRT). Here overall number of participants analyzed signified participants who were evaluable for this outcome measure and number analyzed signifies participants who were evaluable at specified timepoints.

ArmMeasureGroupValue (MEAN)Dispersion
Sequence 1: Debio 1143 + CRTChange From Baseline in Estimated Glomerular Filtration RateBaseline96.956 mL/min/1.73m*2Standard Deviation 14.2212
Sequence 1: Debio 1143 + CRTChange From Baseline in Estimated Glomerular Filtration RateC3D1-8.799 mL/min/1.73m*2Standard Deviation 19.0295
Sequence 1: Debio 1143 + CRTChange From Baseline in Estimated Glomerular Filtration RateEOT-11.385 mL/min/1.73m*2Standard Deviation 20.6015
Sequence 1: Debio 1143 + CRTChange From Baseline in Estimated Glomerular Filtration RateMax on-treatment change-19.439 mL/min/1.73m*2Standard Deviation 27.3672
Sequence 2: Placebo + CRTChange From Baseline in Estimated Glomerular Filtration RateMax on-treatment change-19.528 mL/min/1.73m*2Standard Deviation 25.7099
Sequence 2: Placebo + CRTChange From Baseline in Estimated Glomerular Filtration RateBaseline95.244 mL/min/1.73m*2Standard Deviation 14.129
Sequence 2: Placebo + CRTChange From Baseline in Estimated Glomerular Filtration RateEOT-12.594 mL/min/1.73m*2Standard Deviation 18.0053
Sequence 2: Placebo + CRTChange From Baseline in Estimated Glomerular Filtration RateC3D1-9.205 mL/min/1.73m*2Standard Deviation 18.5178
Secondary

Change From Baseline in Fibrinogen

Change from Baseline in coagulation parameter fibrinogen was reported.

Time frame: At Baseline, Cycle 3 Day 1 (C3D1) (combination period), EOT (15 days after last study treatment administration) and baseline upto event free survival (EFS) follow up Month 18 after EOT (max on treatment change)

Population: The SAF set included all participants who received any dose of any of the study intervention (xevinapant/matched placebo, cisplatin/carboplatin, IMRT). Here overall number of participants analyzed signified participants who were evaluable for this outcome measure and number analyzed signifies participants who were evaluable at specified timepoints.

ArmMeasureGroupValue (MEAN)Dispersion
Sequence 1: Debio 1143 + CRTChange From Baseline in FibrinogenBaseline486.9 milligrams per deciliter (mg/dl)Standard Deviation 140.35
Sequence 1: Debio 1143 + CRTChange From Baseline in FibrinogenC3D1121.3 milligrams per deciliter (mg/dl)Standard Deviation 164.05
Sequence 1: Debio 1143 + CRTChange From Baseline in FibrinogenEOT17.8 milligrams per deciliter (mg/dl)Standard Deviation 150.78
Sequence 1: Debio 1143 + CRTChange From Baseline in FibrinogenMax on-treatment change112.6 milligrams per deciliter (mg/dl)Standard Deviation 212.46
Sequence 2: Placebo + CRTChange From Baseline in FibrinogenMax on-treatment change122.4 milligrams per deciliter (mg/dl)Standard Deviation 207.11
Sequence 2: Placebo + CRTChange From Baseline in FibrinogenBaseline467.7 milligrams per deciliter (mg/dl)Standard Deviation 119.14
Sequence 2: Placebo + CRTChange From Baseline in FibrinogenEOT1.0 milligrams per deciliter (mg/dl)Standard Deviation 138.69
Sequence 2: Placebo + CRTChange From Baseline in FibrinogenC3D1109.8 milligrams per deciliter (mg/dl)Standard Deviation 157.03
Secondary

Change From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, Lipase

Change from Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, Lipase was reported.

Time frame: At Baseline, Cycle 3 Day 1 (C3D1) (combination period), EOT (15 days after last study treatment administration) and baseline upto event free survival (EFS) follow up Month 18 after EOT (max on treatment change)

Population: The SAF set included all participants who received any dose of any of the study intervention (xevinapant/matched placebo, cisplatin/carboplatin, IMRT). Here number analyzed signifies participants who were evaluable at specified timepoints.

ArmMeasureGroupValue (MEAN)Dispersion
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseAlanine Aminotransferase: Baseline18.9 microgram per liter (mcg/L)Standard Deviation 12.1
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseAlanine Aminotransferase: C3D10.5 microgram per liter (mcg/L)Standard Deviation 16.77
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseAlanine Aminotransferase: EOT-2.0 microgram per liter (mcg/L)Standard Deviation 18.25
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseAlanine Aminotransferase: Max on-treatment change55.8 microgram per liter (mcg/L)Standard Deviation 70.73
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseAlkaline Phosphatase: Baseline79.3 microgram per liter (mcg/L)Standard Deviation 24.48
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseAlkaline Phosphatase: C3D1-0.8 microgram per liter (mcg/L)Standard Deviation 19.94
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseAlkaline Phosphatase: EOT-2.2 microgram per liter (mcg/L)Standard Deviation 28.14
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseAlkaline Phosphatase: Max on-treatment change12.7 microgram per liter (mcg/L)Standard Deviation 47.38
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseAmylase: Baseline70.0 microgram per liter (mcg/L)Standard Deviation 42.81
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseAmylase: C3D1-14.0 microgram per liter (mcg/L)Standard Deviation 38.07
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseAmylase: EOT-13.5 microgram per liter (mcg/L)Standard Deviation 40.51
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseAmylase: Max on-treatment change125.8 microgram per liter (mcg/L)Standard Deviation 205.22
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseAspartate Aminotransferase: Baseline19.8 microgram per liter (mcg/L)Standard Deviation 11.1
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseAspartate Aminotransferase: C3D1-2.4 microgram per liter (mcg/L)Standard Deviation 12.3
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseAspartate Aminotransferase: EOT0.4 microgram per liter (mcg/L)Standard Deviation 19.01
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseAspartate Aminotransferase: Max on-treatment change20.0 microgram per liter (mcg/L)Standard Deviation 37.35
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseLipase: Baseline35.4 microgram per liter (mcg/L)Standard Deviation 48.01
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseLipase: C3D1-4.0 microgram per liter (mcg/L)Standard Deviation 39.69
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseLipase: EOT-1.8 microgram per liter (mcg/L)Standard Deviation 47.38
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseLipase: Max on-treatment change87.3 microgram per liter (mcg/L)Standard Deviation 196.87
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseLipase: C3D1-4.0 microgram per liter (mcg/L)Standard Deviation 23.64
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseAlanine Aminotransferase: Baseline19.4 microgram per liter (mcg/L)Standard Deviation 12.66
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseAmylase: EOT-13.5 microgram per liter (mcg/L)Standard Deviation 33.79
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseAlanine Aminotransferase: C3D1-4.6 microgram per liter (mcg/L)Standard Deviation 13.53
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseAspartate Aminotransferase: Max on-treatment change9.7 microgram per liter (mcg/L)Standard Deviation 25.02
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseAlanine Aminotransferase: EOT-3.4 microgram per liter (mcg/L)Standard Deviation 15.87
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseAmylase: Max on-treatment change60.4 microgram per liter (mcg/L)Standard Deviation 119.29
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseAlanine Aminotransferase: Max on-treatment change26.5 microgram per liter (mcg/L)Standard Deviation 45.39
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseLipase: Max on-treatment change25.0 microgram per liter (mcg/L)Standard Deviation 60.54
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseAlkaline Phosphatase: Baseline78.0 microgram per liter (mcg/L)Standard Deviation 23.2
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseAspartate Aminotransferase: Baseline19.8 microgram per liter (mcg/L)Standard Deviation 8.31
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseAlkaline Phosphatase: C3D1-1.0 microgram per liter (mcg/L)Standard Deviation 21.89
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseLipase: Baseline29.8 microgram per liter (mcg/L)Standard Deviation 19.37
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseAlkaline Phosphatase: EOT-5.6 microgram per liter (mcg/L)Standard Deviation 18.79
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseAspartate Aminotransferase: C3D1-3.5 microgram per liter (mcg/L)Standard Deviation 8.63
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseAlkaline Phosphatase: Max on-treatment change5.6 microgram per liter (mcg/L)Standard Deviation 49.27
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseLipase: EOT-1.0 microgram per liter (mcg/L)Standard Deviation 21.69
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseAmylase: Baseline67.8 microgram per liter (mcg/L)Standard Deviation 61.61
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseAspartate Aminotransferase: EOT0.9 microgram per liter (mcg/L)Standard Deviation 18.8
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Alanine Aminotransferase, Alkaline Phosphatase, Amylase, Aspartate Aminotransferase, LipaseAmylase: C3D1-14.0 microgram per liter (mcg/L)Standard Deviation 32.85
Secondary

Change From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, Platelets

Change from Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, Platelets was reported.

Time frame: At Baseline, Cycle 3 Day 1 (C3D1) (combination period), EOT (15 days after last study treatment administration) and baseline upto event free survival (EFS) follow up Month 18 after EOT (max on treatment change)

Population: The SAF set included all participants who received any dose of any of the study intervention (xevinapant/matched placebo, cisplatin/carboplatin, IMRT). Here overall number of participants analyzed signified participants who were evaluable for this outcome measure and number analyzed signifies participants who were evaluable at specified timepoints.

ArmMeasureGroupValue (MEAN)Dispersion
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsLeukocytes: EOT-2.129 10^9 cells per literStandard Deviation 3.2074
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsBasophils: C3D1-0.032 10^9 cells per literStandard Deviation 0.0367
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsBasophils: EOT-0.021 10^9 cells per literStandard Deviation 0.0367
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsBasophil: Max on-treatment change-0.022 10^9 cells per literStandard Deviation 0.0673
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsLeukocytes: Baseline8.175 10^9 cells per literStandard Deviation 2.9656
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsLeukocytes: C3D1-4.065 10^9 cells per literStandard Deviation 3.1244
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsBasophils: Baseline0.052 10^9 cells per literStandard Deviation 0.0343
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsLeukocytes: Max on-treatment change-3.045 10^9 cells per literStandard Deviation 7.5455
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsLymphocytes: Baseline1.753 10^9 cells per literStandard Deviation 0.5734
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsLymphocytes: C3D1-1.168 10^9 cells per literStandard Deviation 0.5804
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsLymphocytes: EOT-0.884 10^9 cells per literStandard Deviation 0.5485
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsLymphocyte: Max on-treatment change-1.382 10^9 cells per literStandard Deviation 0.6359
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsMonocytes: Baseline0.518 10^9 cells per literStandard Deviation 0.2156
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsMonocytes: C3D1-0.139 10^9 cells per literStandard Deviation 0.2389
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsMonocytes: EOT-0.114 10^9 cells per literStandard Deviation 0.1991
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsMonocyte: Max on-treatment change-0.175 10^9 cells per literStandard Deviation 0.405
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsNeutrophils: Baseline5.669 10^9 cells per literStandard Deviation 2.6589
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsNeutrophils: C3D1-2.646 10^9 cells per literStandard Deviation 2.8532
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsNeutrophils: EOT-1.081 10^9 cells per literStandard Deviation 2.9287
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsNeutrophils: Max on-treatment change-0.528 10^9 cells per literStandard Deviation 7.2775
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsPlatelets: Baseline292.6 10^9 cells per literStandard Deviation 104.86
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsPlatelets: C3D1-48.2 10^9 cells per literStandard Deviation 112.13
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsPlatelets: EOT-24.8 10^9 cells per literStandard Deviation 94.59
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsPlatelets: Max on-treatment change-63.2 10^9 cells per literStandard Deviation 203.4
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsPlatelets: EOT-38.6 10^9 cells per literStandard Deviation 87.16
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsBasophils: Baseline0.054 10^9 cells per literStandard Deviation 0.0367
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsMonocytes: Baseline0.506 10^9 cells per literStandard Deviation 0.2072
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsBasophils: C3D1-0.041 10^9 cells per literStandard Deviation 0.0362
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsNeutrophils: EOT-1.275 10^9 cells per literStandard Deviation 2.2696
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsBasophils: EOT-0.023 10^9 cells per literStandard Deviation 0.0312
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsMonocytes: C3D1-0.169 10^9 cells per literStandard Deviation 0.2063
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsBasophil: Max on-treatment change-0.031 10^9 cells per literStandard Deviation 0.0618
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsPlatelets: C3D1-56.5 10^9 cells per literStandard Deviation 109.52
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsLeukocytes: Baseline8.105 10^9 cells per literStandard Deviation 2.6725
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsMonocytes: EOT-0.100 10^9 cells per literStandard Deviation 0.1683
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsLeukocytes: C3D1-4.597 10^9 cells per literStandard Deviation 2.9352
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsNeutrophils: Max on-treatment change-1.095 10^9 cells per literStandard Deviation 6.3143
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsLeukocytes: EOT-2.354 10^9 cells per literStandard Deviation 2.4137
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsMonocyte: Max on-treatment change-0.152 10^9 cells per literStandard Deviation 0.387
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsLeukocytes: Max on-treatment change-3.444 10^9 cells per literStandard Deviation 6.7059
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsPlatelets: Max on-treatment change-88.7 10^9 cells per literStandard Deviation 171.61
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsLymphocytes: Baseline1.753 10^9 cells per literStandard Deviation 0.6367
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsNeutrophils: Baseline5.610 10^9 cells per literStandard Deviation 2.3663
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsLymphocytes: C3D1-1.251 10^9 cells per literStandard Deviation 0.5742
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsPlatelets: Baseline287.7 10^9 cells per literStandard Deviation 107.38
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsLymphocytes: EOT-0.901 10^9 cells per literStandard Deviation 0.5536
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsNeutrophils: C3D1-3.018 10^9 cells per literStandard Deviation 2.6744
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Basophils, Leukocytes, Lymphocytes, Monocytes, Neutrophils, PlateletsLymphocyte: Max on-treatment change-1.356 10^9 cells per literStandard Deviation 0.615
Secondary

Change From Baseline in Laboratory Parameters: Bilirubin, Creatinine, Direct Bilirubin, Urate

Change from Baseline in Laboratory Parameters: Bilirubin, Creatinine, Direct Bilirubin, Urate was reported.

Time frame: At Baseline, Cycle 3 Day 1 (C3D1) (combination period), EOT (15 days after last study treatment administration) and baseline upto event free survival (EFS) follow up Month 18 after EOT (max on treatment change)

Population: The SAF set included all participants who received any dose of any of the study intervention (xevinapant/matched placebo, cisplatin/carboplatin, IMRT). Here number analyzed signifies participants who were evaluable at specified timepoints.

ArmMeasureGroupValue (MEAN)Dispersion
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Bilirubin, Creatinine, Direct Bilirubin, UrateDirect Bilirubin: Baseline4.8 micromole per liter (mcmol/L)Standard Deviation 0.75
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Bilirubin, Creatinine, Direct Bilirubin, UrateBilirubin: C3D1-1.8 micromole per liter (mcmol/L)Standard Deviation 3.74
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Bilirubin, Creatinine, Direct Bilirubin, UrateCreatinine: C3D111.771 micromole per liter (mcmol/L)Standard Deviation 27.4012
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Bilirubin, Creatinine, Direct Bilirubin, UrateBilirubin: Max on-treatment change1.1 micromole per liter (mcmol/L)Standard Deviation 7.49
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Bilirubin, Creatinine, Direct Bilirubin, UrateDirect Bilirubin: Max on-treatment change2.5 micromole per liter (mcmol/L)Standard Deviation 2.12
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Bilirubin, Creatinine, Direct Bilirubin, UrateCreatinine: EOT17.660 micromole per liter (mcmol/L)Standard Deviation 49.3934
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Bilirubin, Creatinine, Direct Bilirubin, UrateUrate: Baseline303.1 micromole per liter (mcmol/L)Standard Deviation 79.62
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Bilirubin, Creatinine, Direct Bilirubin, UrateBilirubin: EOT-2.0 micromole per liter (mcmol/L)Standard Deviation 3.85
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Bilirubin, Creatinine, Direct Bilirubin, UrateUrate: C3D1-25.4 micromole per liter (mcmol/L)Standard Deviation 90.93
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Bilirubin, Creatinine, Direct Bilirubin, UrateCreatinine: Max on-treatment change292.808 micromole per liter (mcmol/L)Standard Deviation 4199.9623
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Bilirubin, Creatinine, Direct Bilirubin, UrateUrate: EOT25.9 micromole per liter (mcmol/L)Standard Deviation 85.01
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Bilirubin, Creatinine, Direct Bilirubin, UrateCreatinine: Baseline67.884 micromole per liter (mcmol/L)Standard Deviation 15.1427
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Bilirubin, Creatinine, Direct Bilirubin, UrateUrate: Max on-treatment change1.2 micromole per liter (mcmol/L)Standard Deviation 140.44
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Bilirubin, Creatinine, Direct Bilirubin, UrateBilirubin: Baseline7.4 micromole per liter (mcmol/L)Standard Deviation 4.03
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Bilirubin, Creatinine, Direct Bilirubin, UrateUrate: C3D1-21.5 micromole per liter (mcmol/L)Standard Deviation 91.07
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Bilirubin, Creatinine, Direct Bilirubin, UrateUrate: EOT33.1 micromole per liter (mcmol/L)Standard Deviation 80.07
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Bilirubin, Creatinine, Direct Bilirubin, UrateUrate: Max on-treatment change12.7 micromole per liter (mcmol/L)Standard Deviation 137.74
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Bilirubin, Creatinine, Direct Bilirubin, UrateBilirubin: Baseline7.8 micromole per liter (mcmol/L)Standard Deviation 4.06
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Bilirubin, Creatinine, Direct Bilirubin, UrateBilirubin: C3D1-1.5 micromole per liter (mcmol/L)Standard Deviation 3.68
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Bilirubin, Creatinine, Direct Bilirubin, UrateBilirubin: EOT-1.3 micromole per liter (mcmol/L)Standard Deviation 3.52
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Bilirubin, Creatinine, Direct Bilirubin, UrateBilirubin: Max on-treatment change0.1 micromole per liter (mcmol/L)Standard Deviation 6.83
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Bilirubin, Creatinine, Direct Bilirubin, UrateCreatinine: Baseline70.612 micromole per liter (mcmol/L)Standard Deviation 15.3405
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Bilirubin, Creatinine, Direct Bilirubin, UrateCreatinine: C3D111.740 micromole per liter (mcmol/L)Standard Deviation 26.2545
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Bilirubin, Creatinine, Direct Bilirubin, UrateCreatinine: EOT16.243 micromole per liter (mcmol/L)Standard Deviation 32.1216
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Bilirubin, Creatinine, Direct Bilirubin, UrateCreatinine: Max on-treatment change360.521 micromole per liter (mcmol/L)Standard Deviation 5664.5213
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Bilirubin, Creatinine, Direct Bilirubin, UrateDirect Bilirubin: Baseline5.6 micromole per liter (mcmol/L)Standard Deviation 1.33
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Bilirubin, Creatinine, Direct Bilirubin, UrateDirect Bilirubin: C3D13.0 micromole per liter (mcmol/L)
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Bilirubin, Creatinine, Direct Bilirubin, UrateDirect Bilirubin: EOT0.0 micromole per liter (mcmol/L)Standard Deviation 1.41
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Bilirubin, Creatinine, Direct Bilirubin, UrateDirect Bilirubin: Max on-treatment change1.0 micromole per liter (mcmol/L)Standard Deviation 2.14
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Bilirubin, Creatinine, Direct Bilirubin, UrateUrate: Baseline305.9 micromole per liter (mcmol/L)Standard Deviation 82.79
Secondary

Change From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, Urea

Change from Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, Urea was reported.

Time frame: At Baseline, Cycle 3 Day 1 (C3D1) (combination period), EOT (15 days after last study treatment administration) and baseline upto event free survival (EFS) follow up Month 18 after EOT (max on treatment change)

Population: The SAF set included all participants who received any dose of any of the study intervention (xevinapant/matched placebo, cisplatin/carboplatin, IMRT). Here number analyzed signifies participants who were evaluable at specified timepoints.

ArmMeasureGroupValue (MEAN)Dispersion
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaCalcium: Baseline2.4065 millimoles per liter (mmol/L)Standard Deviation 0.1405
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaCalcium: C3D1-0.1054 millimoles per liter (mmol/L)Standard Deviation 0.1683
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaCalcium: EOT0.0006 millimoles per liter (mmol/L)Standard Deviation 0.15586
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaCalcium: Max on-treatment change-0.1182 millimoles per liter (mmol/L)Standard Deviation 0.64226
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaMagnesium: Baseline0.8731 millimoles per liter (mmol/L)Standard Deviation 0.08816
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaMagnesium: C3D1-0.0871 millimoles per liter (mmol/L)Standard Deviation 0.11743
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaMagnesium: EOT-0.0588 millimoles per liter (mmol/L)Standard Deviation 0.10612
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaMagnesium: Max on-treatment change-0.1231 millimoles per liter (mmol/L)Standard Deviation 0.21711
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaPotassium: Baseline4.4270 millimoles per liter (mmol/L)Standard Deviation 0.4161
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaPotassium: C3D1-0.1226 millimoles per liter (mmol/L)Standard Deviation 0.60007
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaPotassium: EOT-0.0374 millimoles per liter (mmol/L)Standard Deviation 0.52898
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaPotassium: Max on-treatment change-0.2845 millimoles per liter (mmol/L)Standard Deviation 1.13356
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaSodium: Baseline139.3333 millimoles per liter (mmol/L)Standard Deviation 2.72935
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaSodium: C3D1-2.0828 millimoles per liter (mmol/L)Standard Deviation 3.96368
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaSodium: EOT-0.9510 millimoles per liter (mmol/L)Standard Deviation 3.53728
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaSodium: Max on-treatment change-4.7482 millimoles per liter (mmol/L)Standard Deviation 9.86512
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaUrea: Baseline5.22 millimoles per liter (mmol/L)Standard Deviation 1.885
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaUrea: C3D11.89 millimoles per liter (mmol/L)Standard Deviation 3.302
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaUrea: EOT1.73 millimoles per liter (mmol/L)Standard Deviation 3.266
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaUrea: Max on-treatment change8.51 millimoles per liter (mmol/L)Standard Deviation 7.226
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaUrea: C3D11.87 millimoles per liter (mmol/L)Standard Deviation 3.961
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaCalcium: Baseline2.4043 millimoles per liter (mmol/L)Standard Deviation 0.11777
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaPotassium: EOT0.0170 millimoles per liter (mmol/L)Standard Deviation 0.58221
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaCalcium: C3D1-0.0574 millimoles per liter (mmol/L)Standard Deviation 0.12989
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaSodium: Max on-treatment change-4.6627 millimoles per liter (mmol/L)Standard Deviation 14.14911
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaCalcium: EOT0.0136 millimoles per liter (mmol/L)Standard Deviation 0.12258
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaPotassium: Max on-treatment change-0.2551 millimoles per liter (mmol/L)Standard Deviation 1.14282
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaCalcium: Max on-treatment change-0.0575 millimoles per liter (mmol/L)Standard Deviation 0.63941
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaUrea: Max on-treatment change6.18 millimoles per liter (mmol/L)Standard Deviation 6.11
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaMagnesium: Baseline0.8718 millimoles per liter (mmol/L)Standard Deviation 0.088
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaSodium: Baseline139.1798 millimoles per liter (mmol/L)Standard Deviation 3.19705
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaMagnesium: C3D1-0.0719 millimoles per liter (mmol/L)Standard Deviation 0.11889
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaUrea: Baseline5.23 millimoles per liter (mmol/L)Standard Deviation 2.068
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaMagnesium: EOT-0.0372 millimoles per liter (mmol/L)Standard Deviation 0.08725
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaSodium: C3D1-1.5527 millimoles per liter (mmol/L)Standard Deviation 3.7311
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaMagnesium: Max on-treatment change-0.0860 millimoles per liter (mmol/L)Standard Deviation 0.21948
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaUrea: EOT1.40 millimoles per liter (mmol/L)Standard Deviation 2.922
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaPotassium: Baseline4.4534 millimoles per liter (mmol/L)Standard Deviation 0.44584
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaSodium: EOT-0.9521 millimoles per liter (mmol/L)Standard Deviation 3.71944
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Calcium, Magnesium, Potassium, Sodium, UreaPotassium: C3D1-0.0877 millimoles per liter (mmol/L)Standard Deviation 0.58424
Secondary

Change From Baseline in Laboratory Parameters: C Reactive Protein

Change from Baseline in Laboratory Parameters: C Reactive Protein was reported.

Time frame: At Baseline, Cycle 3 Day 1 (C3D1) (combination period), EOT (15 days after last study treatment administration) and baseline upto event free survival (EFS) follow up Month 18 after EOT (max on treatment change)

Population: The SAF set included all participants who received any dose of any of the study intervention (xevinapant/matched placebo, cisplatin/carboplatin, IMRT). Here number analyzed signifies participants who were evaluable at specified timepoints.

ArmMeasureGroupValue (MEAN)Dispersion
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: C Reactive ProteinBaseline15.80 milligrams per liter (mg/L)Standard Deviation 24.655
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: C Reactive ProteinC3D125.30 milligrams per liter (mg/L)Standard Deviation 50.259
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: C Reactive ProteinEOT1.26 milligrams per liter (mg/L)Standard Deviation 31.784
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: C Reactive ProteinMax on-treatment change43.91 milligrams per liter (mg/L)Standard Deviation 66.024
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: C Reactive ProteinMax on-treatment change27.90 milligrams per liter (mg/L)Standard Deviation 56.262
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: C Reactive ProteinBaseline13.78 milligrams per liter (mg/L)Standard Deviation 21.78
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: C Reactive ProteinEOT1.22 milligrams per liter (mg/L)Standard Deviation 27.72
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: C Reactive ProteinC3D111.66 milligrams per liter (mg/L)Standard Deviation 36.791
Secondary

Change From Baseline in Laboratory Parameters: Erythrocytes

Change from Baseline in Laboratory Parameters: Erythrocytes was reported.

Time frame: At Baseline, Cycle 3 Day 1 (C3D1) (combination period), EOT (15 days after last study treatment administration) and baseline upto event free survival (EFS) follow up Month 18 after EOT (max on treatment change)

Population: The SAF set included all participants who received any dose of any of the study intervention (xevinapant/matched placebo, cisplatin/carboplatin, IMRT). Here overall number of participants analyzed signified participants who were evaluable for this outcome measure and number analyzed signifies participants who were evaluable at specified timepoints.

ArmMeasureGroupValue (MEAN)Dispersion
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: ErythrocytesEOT-0.70 10^12 cells per literStandard Deviation 0.575
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: ErythrocytesC3D1-0.81 10^12 cells per literStandard Deviation 0.456
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: ErythrocytesMax on-treatment change-1.14 10^12 cells per literStandard Deviation 0.636
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: ErythrocytesBaseline4.27 10^12 cells per literStandard Deviation 0.507
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: ErythrocytesMax on-treatment change-1.19 10^12 cells per literStandard Deviation 0.605
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: ErythrocytesC3D1-0.82 10^12 cells per literStandard Deviation 0.433
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: ErythrocytesEOT-0.59 10^12 cells per literStandard Deviation 0.464
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: ErythrocytesBaseline4.37 10^12 cells per literStandard Deviation 0.477
Secondary

Change From Baseline in Laboratory Parameters: Hemoglobin, Albumin, Protein

Change from Baseline in Laboratory Parameters: Hemoglobin, Albumin, Protein was reported.

Time frame: At Baseline, Cycle 3 Day 1 (C3D1) (combination period), EOT (15 days after last study treatment administration) and baseline upto event free survival (EFS) follow up Month 18 after EOT (max on treatment change)

Population: The SAF set included all participants who received any dose of any of the study intervention (xevinapant/matched placebo, cisplatin/carboplatin, IMRT). Here overall number of participants analyzed signified participants who were evaluable for this outcome measure and number analyzed signifies participants who were evaluable at specified timepoints.

ArmMeasureGroupValue (MEAN)Dispersion
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Hemoglobin, Albumin, ProteinHemoglobin: Baseline132.9 grams per liters (g/L)Standard Deviation 15.08
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Hemoglobin, Albumin, ProteinHemoglobin: C3D1-25.7 grams per liters (g/L)Standard Deviation 14.24
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Hemoglobin, Albumin, ProteinHemoglobin: EOT-19.1 grams per liters (g/L)Standard Deviation 17.73
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Hemoglobin, Albumin, ProteinHemoglobin: Max on-treatment change-34.8 grams per liters (g/L)Standard Deviation 19.83
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Hemoglobin, Albumin, ProteinAlbumin: Baseline43.2 grams per liters (g/L)Standard Deviation 3.95
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Hemoglobin, Albumin, ProteinAlbumin: C3D1-4.0 grams per liters (g/L)Standard Deviation 4.33
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Hemoglobin, Albumin, ProteinAlbumin: EOT-1.1 grams per liters (g/L)Standard Deviation 4.43
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Hemoglobin, Albumin, ProteinAlbumin: Max on-treatment change-4.8 grams per liters (g/L)Standard Deviation 6.38
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Hemoglobin, Albumin, ProteinProtein: Baseline70.1 grams per liters (g/L)Standard Deviation 5.11
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Hemoglobin, Albumin, ProteinProtein: C3D1-4.5 grams per liters (g/L)Standard Deviation 5.73
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Hemoglobin, Albumin, ProteinProtein: EOT-0.3 grams per liters (g/L)Standard Deviation 6.1
Sequence 1: Debio 1143 + CRTChange From Baseline in Laboratory Parameters: Hemoglobin, Albumin, ProteinProtein: Max on-treatment change-4.7 grams per liters (g/L)Standard Deviation 9.12
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Hemoglobin, Albumin, ProteinProtein: EOT-0.7 grams per liters (g/L)Standard Deviation 5.32
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Hemoglobin, Albumin, ProteinHemoglobin: Baseline135.4 grams per liters (g/L)Standard Deviation 14.34
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Hemoglobin, Albumin, ProteinAlbumin: EOT0.4 grams per liters (g/L)Standard Deviation 4.02
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Hemoglobin, Albumin, ProteinHemoglobin: C3D1-25.2 grams per liters (g/L)Standard Deviation 13.75
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Hemoglobin, Albumin, ProteinProtein: C3D1-4.3 grams per liters (g/L)Standard Deviation 5.24
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Hemoglobin, Albumin, ProteinHemoglobin: EOT-14.4 grams per liters (g/L)Standard Deviation 14.44
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Hemoglobin, Albumin, ProteinAlbumin: Max on-treatment change-2.6 grams per liters (g/L)Standard Deviation 5.9
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Hemoglobin, Albumin, ProteinHemoglobin: Max on-treatment change-35.8 grams per liters (g/L)Standard Deviation 18.82
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Hemoglobin, Albumin, ProteinProtein: Max on-treatment change-5.0 grams per liters (g/L)Standard Deviation 8.03
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Hemoglobin, Albumin, ProteinAlbumin: Baseline43.6 grams per liters (g/L)Standard Deviation 3.55
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Hemoglobin, Albumin, ProteinProtein: Baseline70.5 grams per liters (g/L)Standard Deviation 4.78
Sequence 2: Placebo + CRTChange From Baseline in Laboratory Parameters: Hemoglobin, Albumin, ProteinAlbumin: C3D1-2.6 grams per liters (g/L)Standard Deviation 3.61
Secondary

Change From Baseline in Prothrombin International Normalized Ratio

Change from baseline in coagulation parameters prothrombin international normalized ratio was reported.

Time frame: At Baseline, Cycle 3 Day 1 (C3D1) (combination period), EOT (15 days after last study treatment administration) and baseline upto event free survival (EFS) follow up Month 18 after EOT (max on treatment change)

Population: The SAF set included all participants who received any dose of any of the study intervention (xevinapant/matched placebo, cisplatin/carboplatin, IMRT). Here overall number of participants analyzed signified participants who were evaluable for this outcome measure and number analyzed signifies participants who were evaluable at specified timepoints.

ArmMeasureGroupValue (MEAN)Dispersion
Sequence 1: Debio 1143 + CRTChange From Baseline in Prothrombin International Normalized RatioBaseline0.96 ratioStandard Deviation 0.09
Sequence 1: Debio 1143 + CRTChange From Baseline in Prothrombin International Normalized RatioC3D10.01 ratioStandard Deviation 0.195
Sequence 1: Debio 1143 + CRTChange From Baseline in Prothrombin International Normalized RatioEOT0.02 ratioStandard Deviation 0.197
Sequence 1: Debio 1143 + CRTChange From Baseline in Prothrombin International Normalized RatioMax on-treatment change0.04 ratioStandard Deviation 0.265
Sequence 2: Placebo + CRTChange From Baseline in Prothrombin International Normalized RatioMax on-treatment change0.00 ratioStandard Deviation 0.212
Sequence 2: Placebo + CRTChange From Baseline in Prothrombin International Normalized RatioBaseline0.99 ratioStandard Deviation 0.188
Sequence 2: Placebo + CRTChange From Baseline in Prothrombin International Normalized RatioEOT0.00 ratioStandard Deviation 0.195
Sequence 2: Placebo + CRTChange From Baseline in Prothrombin International Normalized RatioC3D1-0.02 ratioStandard Deviation 0.175
Secondary

Change From Baseline in Vital Signs: Body Temperature

Change from Baseline in Vital Signs: Body Temperature was reported.

Time frame: At Baseline, Cycle 3 Day 1 (C3D1) (combination period), EOT (15 days after last study treatment administration) and baseline upto event free survival (EFS) follow up Month 18 after EOT (max on treatment increase)

Population: The SAF set included all participants who received any dose of any of the study intervention (xevinapant/matched placebo, cisplatin/carboplatin, IMRT). Here overall number of participants analyzed signified participants who were evaluable for this outcome measure and number analyzed signifies participants who were evaluable at specified timepoints.

ArmMeasureGroupValue (MEAN)Dispersion
Sequence 1: Debio 1143 + CRTChange From Baseline in Vital Signs: Body TemperatureBaseline36.44 degree CelsiusStandard Deviation 0.443
Sequence 1: Debio 1143 + CRTChange From Baseline in Vital Signs: Body TemperatureC3D10.10 degree CelsiusStandard Deviation 36.49
Sequence 1: Debio 1143 + CRTChange From Baseline in Vital Signs: Body TemperatureEOT0.00 degree CelsiusStandard Deviation 0.463
Sequence 1: Debio 1143 + CRTChange From Baseline in Vital Signs: Body TemperatureMax on-treatment increase0.57 degree CelsiusStandard Deviation 0.445
Sequence 2: Placebo + CRTChange From Baseline in Vital Signs: Body TemperatureMax on-treatment increase0.51 degree CelsiusStandard Deviation 0.413
Sequence 2: Placebo + CRTChange From Baseline in Vital Signs: Body TemperatureBaseline36.41 degree CelsiusStandard Deviation 0.432
Sequence 2: Placebo + CRTChange From Baseline in Vital Signs: Body TemperatureEOT0.00 degree CelsiusStandard Deviation 0.453
Sequence 2: Placebo + CRTChange From Baseline in Vital Signs: Body TemperatureC3D10.07 degree CelsiusStandard Deviation 0.476
Secondary

Change From Baseline in Vital Signs: Body Weight

Change from Baseline in Vital Signs: Body Weight was reported.

Time frame: At Baseline, C3D1 (combination period), EOT (15 days after last study treatment administration) and baseline upto event free survival (EFS) follow up Month 18 after EOT (max on treatment increase & decrease)

Population: The SAF set included all participants who received any dose of any of the study intervention (xevinapant/matched placebo, cisplatin/carboplatin, IMRT). Here number analyzed signifies participants who were evaluable at specified timepoints.

ArmMeasureGroupValue (MEAN)Dispersion
Sequence 1: Debio 1143 + CRTChange From Baseline in Vital Signs: Body WeightC3D1-4.762 kilograms (kg)Standard Deviation 3.9129
Sequence 1: Debio 1143 + CRTChange From Baseline in Vital Signs: Body WeightMax on-treatment increase2.497 kilograms (kg)Standard Deviation 2.1157
Sequence 1: Debio 1143 + CRTChange From Baseline in Vital Signs: Body WeightEOT-6.282 kilograms (kg)Standard Deviation 6.116
Sequence 1: Debio 1143 + CRTChange From Baseline in Vital Signs: Body WeightMax on-treatment decrease-8.182 kilograms (kg)Standard Deviation 5.1605
Sequence 1: Debio 1143 + CRTChange From Baseline in Vital Signs: Body WeightBaseline69.552 kilograms (kg)Standard Deviation 16.8493
Sequence 2: Placebo + CRTChange From Baseline in Vital Signs: Body WeightMax on-treatment decrease-7.379 kilograms (kg)Standard Deviation 4.8001
Sequence 2: Placebo + CRTChange From Baseline in Vital Signs: Body WeightBaseline70.261 kilograms (kg)Standard Deviation 15.2793
Sequence 2: Placebo + CRTChange From Baseline in Vital Signs: Body WeightC3D1-4.331 kilograms (kg)Standard Deviation 3.6001
Sequence 2: Placebo + CRTChange From Baseline in Vital Signs: Body WeightEOT-4.819 kilograms (kg)Standard Deviation 5.9718
Sequence 2: Placebo + CRTChange From Baseline in Vital Signs: Body WeightMax on-treatment increase2.549 kilograms (kg)Standard Deviation 2.7503
Secondary

Change From Baseline in Vital Signs: Heart Rate

Change from Baseline in Vital Signs: Heart Rate was reported.

Time frame: At Baseline, Cycle 3 Day 1 (C3D1) (combination period), EOT (15 days after last study treatment administration) and baseline upto event free survival (EFS) follow up Month 18 after EOT (max on treatment increase & decrease)

Population: The SAF set included all participants who received any dose of any of the study intervention (xevinapant/matched placebo, cisplatin/carboplatin, IMRT). Here number analyzed signifies participants who were evaluable at specified timepoints.

ArmMeasureGroupValue (MEAN)Dispersion
Sequence 1: Debio 1143 + CRTChange From Baseline in Vital Signs: Heart RateHeart Rate: C3D15.2 beats/minuteStandard Deviation 13.71
Sequence 1: Debio 1143 + CRTChange From Baseline in Vital Signs: Heart RateHeart Rate: Max on-treatment increase17.8 beats/minuteStandard Deviation 12.3
Sequence 1: Debio 1143 + CRTChange From Baseline in Vital Signs: Heart RateHeart Rate: EOT2.8 beats/minuteStandard Deviation 14.33
Sequence 1: Debio 1143 + CRTChange From Baseline in Vital Signs: Heart RateHeart Rate: Max on-treatment decrease-11.7 beats/minuteStandard Deviation 9
Sequence 1: Debio 1143 + CRTChange From Baseline in Vital Signs: Heart RateHeart Rate: Baseline77.6 beats/minuteStandard Deviation 12.35
Sequence 2: Placebo + CRTChange From Baseline in Vital Signs: Heart RateHeart Rate: Max on-treatment decrease-12.2 beats/minuteStandard Deviation 9.13
Sequence 2: Placebo + CRTChange From Baseline in Vital Signs: Heart RateHeart Rate: Baseline76.1 beats/minuteStandard Deviation 12.6
Sequence 2: Placebo + CRTChange From Baseline in Vital Signs: Heart RateHeart Rate: C3D13.4 beats/minuteStandard Deviation 13.92
Sequence 2: Placebo + CRTChange From Baseline in Vital Signs: Heart RateHeart Rate: EOT2.2 beats/minuteStandard Deviation 13.51
Sequence 2: Placebo + CRTChange From Baseline in Vital Signs: Heart RateHeart Rate: Max on-treatment increase16.7 beats/minuteStandard Deviation 10.97
Secondary

Change From Baseline in Vital Signs: Respiratory Rate

Change from Baseline in Vital Signs: Respiratory Rate was reported.

Time frame: At Baseline, Cycle 3 Day 1 (C3D1) (combination period), EOT (15 days after last study treatment administration) and baseline upto event free survival (EFS) follow up Month 18 after EOT (max on treatment increase & decrease)

Population: The SAF set included all participants who received any dose of any of the study intervention (xevinapant/matched placebo, cisplatin/carboplatin, IMRT). Here number analyzed signifies participants who were evaluable at specified timepoints.

ArmMeasureGroupValue (MEAN)Dispersion
Sequence 1: Debio 1143 + CRTChange From Baseline in Vital Signs: Respiratory RateRespiratory Rate: C3D1-0.1 breaths/minuteStandard Deviation 2.65
Sequence 1: Debio 1143 + CRTChange From Baseline in Vital Signs: Respiratory RateRespiratory Rate: Max on-treatment increase3.2 breaths/minuteStandard Deviation 2.66
Sequence 1: Debio 1143 + CRTChange From Baseline in Vital Signs: Respiratory RateRespiratory Rate: EOT-0.1 breaths/minuteStandard Deviation 2.83
Sequence 1: Debio 1143 + CRTChange From Baseline in Vital Signs: Respiratory RateRespiratory Rate: Max on-treatment decrease-3.1 breaths/minuteStandard Deviation 2.52
Sequence 1: Debio 1143 + CRTChange From Baseline in Vital Signs: Respiratory RateRespiratory Rate: Baseline16.8 breaths/minuteStandard Deviation 2.38
Sequence 2: Placebo + CRTChange From Baseline in Vital Signs: Respiratory RateRespiratory Rate: Max on-treatment decrease-2.7 breaths/minuteStandard Deviation 2.88
Sequence 2: Placebo + CRTChange From Baseline in Vital Signs: Respiratory RateRespiratory Rate: Baseline16.7 breaths/minuteStandard Deviation 2.98
Sequence 2: Placebo + CRTChange From Baseline in Vital Signs: Respiratory RateRespiratory Rate: C3D10.0 breaths/minuteStandard Deviation 2.76
Sequence 2: Placebo + CRTChange From Baseline in Vital Signs: Respiratory RateRespiratory Rate: EOT-0.1 breaths/minuteStandard Deviation 3.01
Sequence 2: Placebo + CRTChange From Baseline in Vital Signs: Respiratory RateRespiratory Rate: Max on-treatment increase2.7 breaths/minuteStandard Deviation 2.13
Secondary

Change From Baseline in Vital Signs: Systolic Blood Pressure, Diastolic Blood Pressure

Change from Baseline in Vital Signs: Systolic Blood Pressure, Diastolic Blood Pressure was reported.

Time frame: At Baseline, Cycle 3 Day 1 (C3D1) (combination period), EOT (15 days after last study treatment administration) and baseline upto event free survival (EFS) follow up Month 18 after EOT (max on treatment increase & decrease)

Population: The SAF set included all participants who received any dose of any of the study intervention (xevinapant/matched placebo, cisplatin/carboplatin, IMRT). Here number analyzed signifies participants who were evaluable at specified timepoints.

ArmMeasureGroupValue (MEAN)Dispersion
Sequence 1: Debio 1143 + CRTChange From Baseline in Vital Signs: Systolic Blood Pressure, Diastolic Blood PressureSystolic Blood Pressure: Baseline128.0 millimeters of mercury (mmHg)Standard Deviation 18.08
Sequence 1: Debio 1143 + CRTChange From Baseline in Vital Signs: Systolic Blood Pressure, Diastolic Blood PressureSystolic Blood Pressure: C3D1-10.1 millimeters of mercury (mmHg)Standard Deviation 19.36
Sequence 1: Debio 1143 + CRTChange From Baseline in Vital Signs: Systolic Blood Pressure, Diastolic Blood PressureSystolic Blood Pressure: EOT-5.8 millimeters of mercury (mmHg)Standard Deviation 20.47
Sequence 1: Debio 1143 + CRTChange From Baseline in Vital Signs: Systolic Blood Pressure, Diastolic Blood PressureSystolic BP: Max on-treatment increase15.6 millimeters of mercury (mmHg)Standard Deviation 12.89
Sequence 1: Debio 1143 + CRTChange From Baseline in Vital Signs: Systolic Blood Pressure, Diastolic Blood PressureSystolic BP: Max on-treatment decrease-24.7 millimeters of mercury (mmHg)Standard Deviation 15.85
Sequence 1: Debio 1143 + CRTChange From Baseline in Vital Signs: Systolic Blood Pressure, Diastolic Blood PressureDiastolic Blood Pressure: Baseline77.4 millimeters of mercury (mmHg)Standard Deviation 10.6
Sequence 1: Debio 1143 + CRTChange From Baseline in Vital Signs: Systolic Blood Pressure, Diastolic Blood PressureDiastolic Blood Pressure: C3D1-5.6 millimeters of mercury (mmHg)Standard Deviation 12.04
Sequence 1: Debio 1143 + CRTChange From Baseline in Vital Signs: Systolic Blood Pressure, Diastolic Blood PressureDiastolic Blood Pressure: EOT-1.8 millimeters of mercury (mmHg)Standard Deviation 12.02
Sequence 1: Debio 1143 + CRTChange From Baseline in Vital Signs: Systolic Blood Pressure, Diastolic Blood PressureDiastolic BP: Max on-treatment increase11.1 millimeters of mercury (mmHg)Standard Deviation 7.54
Sequence 1: Debio 1143 + CRTChange From Baseline in Vital Signs: Systolic Blood Pressure, Diastolic Blood PressureDiastolic BP: Max on-treatment decrease-15.2 millimeters of mercury (mmHg)Standard Deviation 9.43
Sequence 2: Placebo + CRTChange From Baseline in Vital Signs: Systolic Blood Pressure, Diastolic Blood PressureDiastolic Blood Pressure: EOT-1.2 millimeters of mercury (mmHg)Standard Deviation 11.55
Sequence 2: Placebo + CRTChange From Baseline in Vital Signs: Systolic Blood Pressure, Diastolic Blood PressureSystolic Blood Pressure: Baseline128.2 millimeters of mercury (mmHg)Standard Deviation 16.96
Sequence 2: Placebo + CRTChange From Baseline in Vital Signs: Systolic Blood Pressure, Diastolic Blood PressureDiastolic Blood Pressure: Baseline77.5 millimeters of mercury (mmHg)Standard Deviation 9.75
Sequence 2: Placebo + CRTChange From Baseline in Vital Signs: Systolic Blood Pressure, Diastolic Blood PressureSystolic Blood Pressure: C3D1-7.9 millimeters of mercury (mmHg)Standard Deviation 17.53
Sequence 2: Placebo + CRTChange From Baseline in Vital Signs: Systolic Blood Pressure, Diastolic Blood PressureDiastolic BP: Max on-treatment decrease-13.2 millimeters of mercury (mmHg)Standard Deviation 8.42
Sequence 2: Placebo + CRTChange From Baseline in Vital Signs: Systolic Blood Pressure, Diastolic Blood PressureSystolic Blood Pressure: EOT-3.4 millimeters of mercury (mmHg)Standard Deviation 20.03
Sequence 2: Placebo + CRTChange From Baseline in Vital Signs: Systolic Blood Pressure, Diastolic Blood PressureDiastolic Blood Pressure: C3D1-4.0 millimeters of mercury (mmHg)Standard Deviation 10.65
Sequence 2: Placebo + CRTChange From Baseline in Vital Signs: Systolic Blood Pressure, Diastolic Blood PressureSystolic BP: Max on-treatment increase16.5 millimeters of mercury (mmHg)Standard Deviation 12.43
Sequence 2: Placebo + CRTChange From Baseline in Vital Signs: Systolic Blood Pressure, Diastolic Blood PressureDiastolic BP: Max on-treatment increase11.2 millimeters of mercury (mmHg)Standard Deviation 8.09
Sequence 2: Placebo + CRTChange From Baseline in Vital Signs: Systolic Blood Pressure, Diastolic Blood PressureSystolic BP: Max on-treatment decrease-21.9 millimeters of mercury (mmHg)Standard Deviation 14.48
Secondary

Complete Response Rate (CRR)

CRR defined as the number of participants with Complete Response by RECIST v1.1, as assessed by the BIRC. Complete response is defined as disappearance of all target and non-target lesions.

Time frame: At 9 and 12 months post randomization

Population: The ITT set included all randomized participants. Participants were analyzed according to the randomized treatment (assigned arm) assignment following the intention-to-treat principle.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Sequence 1: Debio 1143 + CRTComplete Response Rate (CRR)9 Months Post Randomization187 Participants
Sequence 1: Debio 1143 + CRTComplete Response Rate (CRR)12 Months Post Randomization194 Participants
Sequence 2: Placebo + CRTComplete Response Rate (CRR)9 Months Post Randomization212 Participants
Sequence 2: Placebo + CRTComplete Response Rate (CRR)12 Months Post Randomization222 Participants
Secondary

Duration of Response (DOR)

Duration of response (DoR) defined as the time from the first evidence of response (partial or complete, as assessed by the BIRC according to RECIST v1.1) to the first occurrence of progression (radiological or clinical, as assessed by the BIRC) or death from any cause. Kaplan Meier method was used for calculation.

Time frame: Time from first evidence of response to the first occurrence of progression or death from any cause, assessed up to 24 months

Population: The ITT set included all randomized participants. Participants were analyzed according to the randomized treatment (assigned arm) assignment following the intention-to-treat principle. Number of participants analyzed signifies participants who were evaluable for this outcome measure.

ArmMeasureValue (MEDIAN)
Sequence 1: Debio 1143 + CRTDuration of Response (DOR)NA months
Sequence 2: Placebo + CRTDuration of Response (DOR)NA months
Secondary

Locoregional Control (LRC) Time

LRC time is defined as the time from randomization to the first occurrence of progression at the site of the primary tumor or the locoregional lymph nodes, either according to RECIST v1.1 or based on clinical assessment (radiological or clinical, as assessed by the Investigator). According to RECIST 1.1, progressive disease (PD) was defined as a 20% relative increase in the sum of diameters (SOD) of target lesions, taking as reference the nadir SOD and an absolute increase of \>5 millimeter (mm) in the SOD, or the appearance of new lesions. Calculated via Kaplan Meier method.

Time frame: From randomization to the first occurrence of progression at the site of the primary tumor or the locoregional lymph nodes or End Of Study (EOS) (188 weeks and 5 days)

Population: The ITT set included all randomized participants. Participants were analyzed according to the randomized treatment (assigned arm) assignment following the intention-to-treat principle.

ArmMeasureValue (MEDIAN)
Sequence 1: Debio 1143 + CRTLocoregional Control (LRC) TimeNA months
Sequence 2: Placebo + CRTLocoregional Control (LRC) TimeNA months
Secondary

Number of Participants Who Completed Cycle 1, 2, 3, 4, 5 and 6

Number of participants who completed cycle 1, 2, 3, 4, 5 or 6 of xevinapant/matched placebo were reported.

Time frame: Cycle 1, 2, 3, 4, 5 and 6 (each cycle is of 3 weeks)

Population: The SAF set included all participants who received any dose of any of the study intervention (xevinapant/matched placebo, cisplatin/carboplatin, IMRT).

ArmMeasureGroupValue (NUMBER)
Sequence 1: Debio 1143 + CRTNumber of Participants Who Completed Cycle 1, 2, 3, 4, 5 and 6Cycle 1363 count of participants
Sequence 1: Debio 1143 + CRTNumber of Participants Who Completed Cycle 1, 2, 3, 4, 5 and 6Cycle 2325 count of participants
Sequence 1: Debio 1143 + CRTNumber of Participants Who Completed Cycle 1, 2, 3, 4, 5 and 6Cycle 3290 count of participants
Sequence 1: Debio 1143 + CRTNumber of Participants Who Completed Cycle 1, 2, 3, 4, 5 and 6Cycle 4266 count of participants
Sequence 1: Debio 1143 + CRTNumber of Participants Who Completed Cycle 1, 2, 3, 4, 5 and 6Cycle 5263 count of participants
Sequence 1: Debio 1143 + CRTNumber of Participants Who Completed Cycle 1, 2, 3, 4, 5 and 6Cycle 6246 count of participants
Sequence 2: Placebo + CRTNumber of Participants Who Completed Cycle 1, 2, 3, 4, 5 and 6Cycle 5307 count of participants
Sequence 2: Placebo + CRTNumber of Participants Who Completed Cycle 1, 2, 3, 4, 5 and 6Cycle 1355 count of participants
Sequence 2: Placebo + CRTNumber of Participants Who Completed Cycle 1, 2, 3, 4, 5 and 6Cycle 4210 count of participants
Sequence 2: Placebo + CRTNumber of Participants Who Completed Cycle 1, 2, 3, 4, 5 and 6Cycle 2335 count of participants
Sequence 2: Placebo + CRTNumber of Participants Who Completed Cycle 1, 2, 3, 4, 5 and 6Cycle 6297 count of participants
Sequence 2: Placebo + CRTNumber of Participants Who Completed Cycle 1, 2, 3, 4, 5 and 6Cycle 3314 count of participants
Secondary

Number of Participants With Radical Salvage Surgery

Number of Participants with Radical Salvage Surgery (excluding elective neck dissection without anatomopathological evidence of residual malignant cells) was reported.

Time frame: At 9, 12, 24 and 36 months post randomization

Population: The ITT set included all randomized participants. Participants were analyzed according to the randomized treatment (assigned arm) assignment following the intention-to-treat principle.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Sequence 1: Debio 1143 + CRTNumber of Participants With Radical Salvage SurgeryMonth 910 Participants
Sequence 1: Debio 1143 + CRTNumber of Participants With Radical Salvage SurgeryMonth 1219 Participants
Sequence 1: Debio 1143 + CRTNumber of Participants With Radical Salvage SurgeryMonth 2423 Participants
Sequence 1: Debio 1143 + CRTNumber of Participants With Radical Salvage SurgeryMonth 3623 Participants
Sequence 2: Placebo + CRTNumber of Participants With Radical Salvage SurgeryMonth 369 Participants
Sequence 2: Placebo + CRTNumber of Participants With Radical Salvage SurgeryMonth 93 Participants
Sequence 2: Placebo + CRTNumber of Participants With Radical Salvage SurgeryMonth 249 Participants
Sequence 2: Placebo + CRTNumber of Participants With Radical Salvage SurgeryMonth 125 Participants
Secondary

Number of Participants With Severity of Grade Greater or Equal to 3 TEAEs

Severity of TEAEs were evaluated using the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version. The grade are as follows: grade 1 : mild grade 2 : moderate grade 3 : severe or medically significant but not immediately life-threatening grade 4 : life threatening or disabling grade 5 : death related to AE.

Time frame: From signed informed consent to EOS (up to 188 weeks and 5 days)

Population: The SAF set included all participants who received any dose of any of the study intervention (xevinapant/matched placebo, cisplatin/carboplatin, IMRT).

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Sequence 1: Debio 1143 + CRTNumber of Participants With Severity of Grade Greater or Equal to 3 TEAEs320 Participants
Sequence 2: Placebo + CRTNumber of Participants With Severity of Grade Greater or Equal to 3 TEAEs286 Participants
Secondary

Number of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious TEAEs, Adverse Events (AEs) of Special Interest

An AE is any unfavorable/unintended sign (e.g., abnormal lab result), symptom or disease temporally linked to study drug, whether or not related. A serious AE leads to death, is life-threatening, causes significant/persistent disability, hospitalization, congenital anomaly, or is medically important. TEAEs include both serious and non-serious AEs after treatment. AESIs are events of clinical interest needing close monitoring. In this study, AESIs include: infusion reactions including hypersensitivity, immune-related AEs, aspartate aminotransferase/alanine transaminase increases, lipase/amylase elevation, acute renal failure, QTcF more than 30 milliseconds above baseline, and ≥Grade 2 inflammatory cutaneous AEs.

Time frame: From signed informed consent to EOS (up to 188 weeks and 5 days)

Population: The safety analysis set (SAF set) included all participants who received any dose of any of the study intervention (xevinapant/matched placebo, cisplatin/carboplatin, IMRT).

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Sequence 1: Debio 1143 + CRTNumber of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious TEAEs, Adverse Events (AEs) of Special InterestTEAEs362 Participants
Sequence 1: Debio 1143 + CRTNumber of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious TEAEs, Adverse Events (AEs) of Special InterestSerious TEAEs194 Participants
Sequence 1: Debio 1143 + CRTNumber of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious TEAEs, Adverse Events (AEs) of Special InterestAESI357 Participants
Sequence 2: Placebo + CRTNumber of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious TEAEs, Adverse Events (AEs) of Special InterestTEAEs351 Participants
Sequence 2: Placebo + CRTNumber of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious TEAEs, Adverse Events (AEs) of Special InterestSerious TEAEs129 Participants
Sequence 2: Placebo + CRTNumber of Participants With Treatment-Emergent Adverse Events (TEAEs), Serious TEAEs, Adverse Events (AEs) of Special InterestAESI342 Participants
Secondary

Number of Participants With Treatment Interruption, Treatment Reduction and Treatment Discontinuation for Xevinapant/ Matched Placebo

Number of participants with Treatment Interruption, Treatment Reduction and Treatment Discontinuation was reported.

Time frame: Up to end of treatment (Day 134)

Population: The SAF set included all participants who received any dose of any of the study intervention (xevinapant/matched placebo, cisplatin/carboplatin, IMRT). Here number analyzed signifies participants who were evaluable for each specific category.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Sequence 1: Debio 1143 + CRTNumber of Participants With Treatment Interruption, Treatment Reduction and Treatment Discontinuation for Xevinapant/ Matched PlaceboTreatment Interruption of xevinapant/ matched placebo206 Participants
Sequence 1: Debio 1143 + CRTNumber of Participants With Treatment Interruption, Treatment Reduction and Treatment Discontinuation for Xevinapant/ Matched PlaceboTreatment Reduction of xevinapant/ matched placebo34 Participants
Sequence 1: Debio 1143 + CRTNumber of Participants With Treatment Interruption, Treatment Reduction and Treatment Discontinuation for Xevinapant/ Matched PlaceboTreatment Discontinuation of xevinapant/ matched placebo71 Participants
Sequence 2: Placebo + CRTNumber of Participants With Treatment Interruption, Treatment Reduction and Treatment Discontinuation for Xevinapant/ Matched PlaceboTreatment Interruption of xevinapant/ matched placebo147 Participants
Sequence 2: Placebo + CRTNumber of Participants With Treatment Interruption, Treatment Reduction and Treatment Discontinuation for Xevinapant/ Matched PlaceboTreatment Reduction of xevinapant/ matched placebo17 Participants
Sequence 2: Placebo + CRTNumber of Participants With Treatment Interruption, Treatment Reduction and Treatment Discontinuation for Xevinapant/ Matched PlaceboTreatment Discontinuation of xevinapant/ matched placebo30 Participants
Secondary

Objective Response Rate (ORR) as Assessed by BIRC

Objective response rate was defined as percentage of participants with either a confirmed complete response (CR) or partial response (PR). CR: Disappearance of all target and non-target lesions. PR: At least a 30 percent (%) decrease in the sum of diameters of target lesions, taking as reference the baseline sum of their diameters, and no unequivocal progression of non-target lesions. Progression is defined as at least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on the study, or unequivocal progression of non-target lesions, or appearance of any new lesion.

Time frame: At 9 and 12 months post randomization

Population: The ITT set included all randomized participants. Participants were analyzed according to the randomized treatment (assigned arm) assignment following the intention-to-treat principle.

ArmMeasureGroupValue (NUMBER)
Sequence 1: Debio 1143 + CRTObjective Response Rate (ORR) as Assessed by BIRC9 Months Post Randomization73.4 percentage of participants
Sequence 1: Debio 1143 + CRTObjective Response Rate (ORR) as Assessed by BIRC12 Months Post Randomization73.6 percentage of participants
Sequence 2: Placebo + CRTObjective Response Rate (ORR) as Assessed by BIRC9 Months Post Randomization77.3 percentage of participants
Sequence 2: Placebo + CRTObjective Response Rate (ORR) as Assessed by BIRC12 Months Post Randomization77.9 percentage of participants
Secondary

Overall Dose Intensity of Carboplatin

Overall dose intensity of Carboplatin is calculated as the mean of the dose intensities of the individual cycles. This was reported with unit of measure Milligrams per minute per milliliter per week (mg min/mL/week).

Time frame: Cycle 1, 2, 3, 4 5, 6 (each cycle is of 3 weeks) or End of Treatment (Day 134)

Population: The SAF set included all participants who received any dose of any of the study intervention (xevinapant/matched placebo, cisplatin/carboplatin, IMRT).Here overall number of participants analyzed signified participants who were evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Sequence 1: Debio 1143 + CRTOverall Dose Intensity of Carboplatin1.59 mg min/mL/weekStandard Deviation 0.136
Sequence 2: Placebo + CRTOverall Dose Intensity of Carboplatin1.60 mg min/mL/weekStandard Deviation 0.123
Secondary

Overall Dose Intensity of Cisplatin

Overall dose intensity of Cisplatin is calculated as the mean of the dose intensities of the individual cycles. This was reported with the unit of measure milligrams per meter square per week (mg/m2/week).

Time frame: Cycle 1, 2, 3, 4 5, 6 (each cycle is of 3 weeks) or End of Treatment (Day 134)

Population: The SAF set included all participants who received any dose of any of the study intervention (xevinapant/matched placebo, cisplatin/carboplatin, IMRT). Here overall number of participants analyzed signified participants who were evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Sequence 1: Debio 1143 + CRTOverall Dose Intensity of Cisplatin32.33 mg/m2/weekStandard Deviation 3.053
Sequence 2: Placebo + CRTOverall Dose Intensity of Cisplatin32.55 mg/m2/weekStandard Deviation 2.301
Secondary

Overall Dose Intensity of Xevinapant/Matched Placebo

Overall dose intensity of Xevinapant/ matched placebo is calculated as the mean of the dose intensities of the individual cycles.

Time frame: Cycle 1, 2, 3, 4 5, 6 (each cycle is of 3 weeks) or End of Treatment (Day 134)

Population: The SAF set included all participants who received any dose of any of the study intervention (xevinapant/matched placebo, cisplatin/carboplatin, IMRT).Here overall number of participants analyzed signified participants who were evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Sequence 1: Debio 1143 + CRTOverall Dose Intensity of Xevinapant/Matched Placebo122.72 milligrams per day (mg/day)Standard Deviation 18.274
Sequence 2: Placebo + CRTOverall Dose Intensity of Xevinapant/Matched Placebo126.56 milligrams per day (mg/day)Standard Deviation 16.495
Secondary

Overall Survival (OS)

Overall survival is defined as the time from randomization to the date of death. Calculated via Kaplan Meier method.

Time frame: From randomization to the earliest between death or EOS (up to 188 weeks and 5 days)

Population: The ITT set included all randomized participants. Participants were analyzed according to the randomized treatment (assigned arm) assignment following the intention-to-treat principle.

ArmMeasureValue (MEDIAN)
Sequence 1: Debio 1143 + CRTOverall Survival (OS)NA months
Sequence 2: Placebo + CRTOverall Survival (OS)NA months
Secondary

Percent Change From Baseline in Laboratory Parameters: Basophils/Leukocytes, Eosinophils/Leukocytes, Lymphocytes/Leukocytes, Monocytes/Leukocytes, Neutrophils/Leukocytes

Change from Baseline in Laboratory Parameters: Basophils/Leukocytes, Eosinophils/Leukocytes, Lymphocytes/Leukocytes, Monocytes/Leukocytes, Neutrophils/Leukocytes was reported.

Time frame: At Cycle 3 Day 1 (C3D1) (combination period), EOT (15 days after last study treatment administration) and baseline upto event free survival (EFS) follow up Month 18 after EOT (max on treatment change)

Population: The SAF set included all participants who received any dose of any of the study intervention (xevinapant/matched placebo, cisplatin/carboplatin, IMRT). Here overall number of participants analyzed signified participants who were evaluable for this outcome measure and number analyzed signifies participants who were evaluable at specified timepoints.

ArmMeasureGroupValue (MEAN)Dispersion
Sequence 1: Debio 1143 + CRTPercent Change From Baseline in Laboratory Parameters: Basophils/Leukocytes, Eosinophils/Leukocytes, Lymphocytes/Leukocytes, Monocytes/Leukocytes, Neutrophils/LeukocytesC3D1: Basophils/Leukocytes-0.21 percent changeStandard Deviation 0.551
Sequence 1: Debio 1143 + CRTPercent Change From Baseline in Laboratory Parameters: Basophils/Leukocytes, Eosinophils/Leukocytes, Lymphocytes/Leukocytes, Monocytes/Leukocytes, Neutrophils/LeukocytesMax on-treatment change: Lymphocytes/Leukocytes-11.39 percent changeStandard Deviation 15.553
Sequence 1: Debio 1143 + CRTPercent Change From Baseline in Laboratory Parameters: Basophils/Leukocytes, Eosinophils/Leukocytes, Lymphocytes/Leukocytes, Monocytes/Leukocytes, Neutrophils/LeukocytesEOT: Eosinophils/Leukocytes0.60 percent changeStandard Deviation 3.435
Sequence 1: Debio 1143 + CRTPercent Change From Baseline in Laboratory Parameters: Basophils/Leukocytes, Eosinophils/Leukocytes, Lymphocytes/Leukocytes, Monocytes/Leukocytes, Neutrophils/LeukocytesC3D1: Monocytes/Leukocytes3.65 percent changeStandard Deviation 4.502
Sequence 1: Debio 1143 + CRTPercent Change From Baseline in Laboratory Parameters: Basophils/Leukocytes, Eosinophils/Leukocytes, Lymphocytes/Leukocytes, Monocytes/Leukocytes, Neutrophils/LeukocytesMax on-treatment change: Basophils/Leukocytes0.03 percent changeStandard Deviation 0.985
Sequence 1: Debio 1143 + CRTPercent Change From Baseline in Laboratory Parameters: Basophils/Leukocytes, Eosinophils/Leukocytes, Lymphocytes/Leukocytes, Monocytes/Leukocytes, Neutrophils/LeukocytesEOT: Monocytes/Leukocytes0.64 percent changeStandard Deviation 2.666
Sequence 1: Debio 1143 + CRTPercent Change From Baseline in Laboratory Parameters: Basophils/Leukocytes, Eosinophils/Leukocytes, Lymphocytes/Leukocytes, Monocytes/Leukocytes, Neutrophils/LeukocytesMax on-treatment change: Eosinophils/Leukocytes1.32 percent changeStandard Deviation 5.005
Sequence 1: Debio 1143 + CRTPercent Change From Baseline in Laboratory Parameters: Basophils/Leukocytes, Eosinophils/Leukocytes, Lymphocytes/Leukocytes, Monocytes/Leukocytes, Neutrophils/LeukocytesMax on-treatment change: Monocytes/Leukocytes5.87 percent changeStandard Deviation 6.06
Sequence 1: Debio 1143 + CRTPercent Change From Baseline in Laboratory Parameters: Basophils/Leukocytes, Eosinophils/Leukocytes, Lymphocytes/Leukocytes, Monocytes/Leukocytes, Neutrophils/LeukocytesEOT: Basophils/Leukocytes-0.14 percent changeStandard Deviation 0.502
Sequence 1: Debio 1143 + CRTPercent Change From Baseline in Laboratory Parameters: Basophils/Leukocytes, Eosinophils/Leukocytes, Lymphocytes/Leukocytes, Monocytes/Leukocytes, Neutrophils/LeukocytesC3D1: Neutrophils/Leukocytes2.67 percent changeStandard Deviation 14.064
Sequence 1: Debio 1143 + CRTPercent Change From Baseline in Laboratory Parameters: Basophils/Leukocytes, Eosinophils/Leukocytes, Lymphocytes/Leukocytes, Monocytes/Leukocytes, Neutrophils/LeukocytesC3D1: Lymphocytes/Leukocytes-6.89 percent changeStandard Deviation 10.604
Sequence 1: Debio 1143 + CRTPercent Change From Baseline in Laboratory Parameters: Basophils/Leukocytes, Eosinophils/Leukocytes, Lymphocytes/Leukocytes, Monocytes/Leukocytes, Neutrophils/LeukocytesEOT: Neutrophils/Leukocytes5.75 percent changeStandard Deviation 10.651
Sequence 1: Debio 1143 + CRTPercent Change From Baseline in Laboratory Parameters: Basophils/Leukocytes, Eosinophils/Leukocytes, Lymphocytes/Leukocytes, Monocytes/Leukocytes, Neutrophils/LeukocytesC3D1: Eosinophils/Leukocytes-0.04 percent changeStandard Deviation 2.874
Sequence 1: Debio 1143 + CRTPercent Change From Baseline in Laboratory Parameters: Basophils/Leukocytes, Eosinophils/Leukocytes, Lymphocytes/Leukocytes, Monocytes/Leukocytes, Neutrophils/LeukocytesMax on-treatment change: Neutrophils/Leukocytes6.80 percent changeStandard Deviation 24.388
Sequence 1: Debio 1143 + CRTPercent Change From Baseline in Laboratory Parameters: Basophils/Leukocytes, Eosinophils/Leukocytes, Lymphocytes/Leukocytes, Monocytes/Leukocytes, Neutrophils/LeukocytesEOT: Lymphocytes/Leukocytes-6.85 percent changeStandard Deviation 8.855
Sequence 2: Placebo + CRTPercent Change From Baseline in Laboratory Parameters: Basophils/Leukocytes, Eosinophils/Leukocytes, Lymphocytes/Leukocytes, Monocytes/Leukocytes, Neutrophils/LeukocytesMax on-treatment change: Neutrophils/Leukocytes7.45 percent changeStandard Deviation 21.764
Sequence 2: Placebo + CRTPercent Change From Baseline in Laboratory Parameters: Basophils/Leukocytes, Eosinophils/Leukocytes, Lymphocytes/Leukocytes, Monocytes/Leukocytes, Neutrophils/LeukocytesC3D1: Basophils/Leukocytes-0.29 percent changeStandard Deviation 0.527
Sequence 2: Placebo + CRTPercent Change From Baseline in Laboratory Parameters: Basophils/Leukocytes, Eosinophils/Leukocytes, Lymphocytes/Leukocytes, Monocytes/Leukocytes, Neutrophils/LeukocytesEOT: Basophils/Leukocytes-0.13 percent changeStandard Deviation 0.483
Sequence 2: Placebo + CRTPercent Change From Baseline in Laboratory Parameters: Basophils/Leukocytes, Eosinophils/Leukocytes, Lymphocytes/Leukocytes, Monocytes/Leukocytes, Neutrophils/LeukocytesMax on-treatment change: Basophils/Leukocytes0.00 percent changeStandard Deviation 1.032
Sequence 2: Placebo + CRTPercent Change From Baseline in Laboratory Parameters: Basophils/Leukocytes, Eosinophils/Leukocytes, Lymphocytes/Leukocytes, Monocytes/Leukocytes, Neutrophils/LeukocytesC3D1: Eosinophils/Leukocytes-0.39 percent changeStandard Deviation 2.147
Sequence 2: Placebo + CRTPercent Change From Baseline in Laboratory Parameters: Basophils/Leukocytes, Eosinophils/Leukocytes, Lymphocytes/Leukocytes, Monocytes/Leukocytes, Neutrophils/LeukocytesEOT: Eosinophils/Leukocytes0.07 percent changeStandard Deviation 1.878
Sequence 2: Placebo + CRTPercent Change From Baseline in Laboratory Parameters: Basophils/Leukocytes, Eosinophils/Leukocytes, Lymphocytes/Leukocytes, Monocytes/Leukocytes, Neutrophils/LeukocytesMax on-treatment change: Eosinophils/Leukocytes0.04 percent changeStandard Deviation 3.308
Sequence 2: Placebo + CRTPercent Change From Baseline in Laboratory Parameters: Basophils/Leukocytes, Eosinophils/Leukocytes, Lymphocytes/Leukocytes, Monocytes/Leukocytes, Neutrophils/LeukocytesC3D1: Lymphocytes/Leukocytes-5.80 percent changeStandard Deviation 10.086
Sequence 2: Placebo + CRTPercent Change From Baseline in Laboratory Parameters: Basophils/Leukocytes, Eosinophils/Leukocytes, Lymphocytes/Leukocytes, Monocytes/Leukocytes, Neutrophils/LeukocytesEOT: Lymphocytes/Leukocytes-6.91 percent changeStandard Deviation 7.85
Sequence 2: Placebo + CRTPercent Change From Baseline in Laboratory Parameters: Basophils/Leukocytes, Eosinophils/Leukocytes, Lymphocytes/Leukocytes, Monocytes/Leukocytes, Neutrophils/LeukocytesMax on-treatment change: Lymphocytes/Leukocytes-10.07 percent changeStandard Deviation 15.985
Sequence 2: Placebo + CRTPercent Change From Baseline in Laboratory Parameters: Basophils/Leukocytes, Eosinophils/Leukocytes, Lymphocytes/Leukocytes, Monocytes/Leukocytes, Neutrophils/LeukocytesC3D1: Monocytes/Leukocytes3.90 percent changeStandard Deviation 3.84
Sequence 2: Placebo + CRTPercent Change From Baseline in Laboratory Parameters: Basophils/Leukocytes, Eosinophils/Leukocytes, Lymphocytes/Leukocytes, Monocytes/Leukocytes, Neutrophils/LeukocytesEOT: Monocytes/Leukocytes0.89 percent changeStandard Deviation 2.454
Sequence 2: Placebo + CRTPercent Change From Baseline in Laboratory Parameters: Basophils/Leukocytes, Eosinophils/Leukocytes, Lymphocytes/Leukocytes, Monocytes/Leukocytes, Neutrophils/LeukocytesMax on-treatment change: Monocytes/Leukocytes6.26 percent changeStandard Deviation 5.631
Sequence 2: Placebo + CRTPercent Change From Baseline in Laboratory Parameters: Basophils/Leukocytes, Eosinophils/Leukocytes, Lymphocytes/Leukocytes, Monocytes/Leukocytes, Neutrophils/LeukocytesC3D1: Neutrophils/Leukocytes2.33 percent changeStandard Deviation 12.467
Sequence 2: Placebo + CRTPercent Change From Baseline in Laboratory Parameters: Basophils/Leukocytes, Eosinophils/Leukocytes, Lymphocytes/Leukocytes, Monocytes/Leukocytes, Neutrophils/LeukocytesEOT: Neutrophils/Leukocytes6.08 percent changeStandard Deviation 9.086
Secondary

Progression Free Survival (PFS) According to Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 as Assessed by Blinded Independent Review Committee (BIRC)

PFS according to RECIST v1.1 defined as the time from randomization to the first occurrence of progression (radiological or clinical, as assessed by the BIRC) or death from any cause. According to RECIST 1.1, progressive disease (PD) was defined as a 20% relative increase in the sum of diameters (SOD) of target lesions, taking as reference the nadir SOD and an absolute increase of \>5 millimeter (mm) in the SOD, or the appearance of new lesions. Calculated via Kaplan Meier method.

Time frame: From randomization to the first occurrence of progression (radiological or clinical, as assessed by the BIRC) or death from any cause or EOS (up to 188 weeks and 5 days )

Population: The ITT set included all randomized participants. Participants were analyzed according to the randomized treatment (assigned arm) assignment following the intention-to-treat principle.

ArmMeasureValue (MEDIAN)
Sequence 1: Debio 1143 + CRTProgression Free Survival (PFS) According to Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 as Assessed by Blinded Independent Review Committee (BIRC)26.8 months
Sequence 2: Placebo + CRTProgression Free Survival (PFS) According to Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 as Assessed by Blinded Independent Review Committee (BIRC)33.1 months
Secondary

Relative Dose Intensity

Relative dose intensity (RDI) represents the percentage of the amount of a drug actually delivered \[actual dose intensity (DI)\] to the amount planned (planned DI). The purpose of calculating RDI is to evaluate whether the planned DI of an anti-cancer treatment was actually achieved which may suggest the feasibility of planned treatment regimen.

Time frame: Up to 50 months

Population: The SAF set included all participants who received any dose of any of the study intervention (xevinapant/matched placebo, cisplatin/carboplatin, IMRT). Here number analyzed signifies participants who were evaluable for each specific category.

ArmMeasureGroupValue (MEAN)Dispersion
Sequence 1: Debio 1143 + CRTRelative Dose IntensityXevinapant/matched placebo92.04 percentage (%) of dose intensityStandard Deviation 13.706
Sequence 1: Debio 1143 + CRTRelative Dose IntensityCisplatin96.98 percentage (%) of dose intensityStandard Deviation 9.159
Sequence 1: Debio 1143 + CRTRelative Dose IntensityCarboplatin95.19 percentage (%) of dose intensityStandard Deviation 8.182
Sequence 2: Placebo + CRTRelative Dose IntensityXevinapant/matched placebo94.92 percentage (%) of dose intensityStandard Deviation 12.372
Sequence 2: Placebo + CRTRelative Dose IntensityCisplatin97.65 percentage (%) of dose intensityStandard Deviation 6.904
Sequence 2: Placebo + CRTRelative Dose IntensityCarboplatin96.17 percentage (%) of dose intensityStandard Deviation 7.386
Secondary

Time to Subsequent Systemic Cancer Treatments

Time to new subsequent systemic cancer treatment (in months) was derived as (date of event/censoring - randomization date +1) / 30.4375. Calculated via kaplan meier method.

Time frame: Up to 188 weeks and 5 days post randomization

Population: The ITT set included all randomized participants. Participants were analyzed according to the randomized treatment (assigned arm) assignment following the intention-to-treat principle.

ArmMeasureValue (MEDIAN)
Sequence 1: Debio 1143 + CRTTime to Subsequent Systemic Cancer TreatmentsNA months
Sequence 2: Placebo + CRTTime to Subsequent Systemic Cancer TreatmentsNA months
Secondary

Total Cumulative Dose of Carboplatin

Total cumulative dose of carboplatin was reported as mean and standard deviation.

Time frame: Up to end of treatment (Day 134)

Population: The SAF set included all participants who received any dose of any of the study intervention (xevinapant/matched placebo, cisplatin/carboplatin, IMRT). Here overall number of participants analyzed signified participants who were evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Sequence 1: Debio 1143 + CRTTotal Cumulative Dose of Carboplatin6.9 mg*min/mLStandard Deviation 2.37
Sequence 2: Placebo + CRTTotal Cumulative Dose of Carboplatin6.6 mg*min/mLStandard Deviation 2.26
Secondary

Total Cumulative Dose of Cisplatin

Total cumulative dose of cisplatin was reported.

Time frame: Up to end of treatment (Day 134)

Population: The SAF set included all participants who received any dose of any of the study intervention (xevinapant/matched placebo, cisplatin/carboplatin, IMRT). Here overall number of participants analyzed signified participants who were evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Sequence 1: Debio 1143 + CRTTotal Cumulative Dose of Cisplatin223.3 milligrams per square meter (mg/m^2)Standard Deviation 76.26
Sequence 2: Placebo + CRTTotal Cumulative Dose of Cisplatin236.3 milligrams per square meter (mg/m^2)Standard Deviation 73.14
Secondary

Total Cumulative Dose of Intensity-Modulated Radiation Therapy (IMRT)

Total cumulative dose of IMRT were reported in form of mean and standard deviation.

Time frame: Up to end of treatment (Day 134)

Population: The SAF set included all participants who received any dose of any of the study intervention (xevinapant/matched placebo, cisplatin/carboplatin, IMRT). Here overall number of participants analyzed signified participants who were evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Sequence 1: Debio 1143 + CRTTotal Cumulative Dose of Intensity-Modulated Radiation Therapy (IMRT)66.4 Gray (Gy)Standard Deviation 12.32
Sequence 2: Placebo + CRTTotal Cumulative Dose of Intensity-Modulated Radiation Therapy (IMRT)67.9 Gray (Gy)Standard Deviation 9.74
Secondary

Total Cumulative Dose of Xevinapant/ Matched Placebo

Total cumulative dose of Xevinapant/ Matched Placebo was reported in form of mean and standard deviation.

Time frame: Up to end of treatment (Day 134)

Population: The SAF set included all participants who received any dose of any of the study intervention (xevinapant/matched placebo, cisplatin/carboplatin, IMRT). Here overall number of participants analyzed signified participants who were evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Sequence 1: Debio 1143 + CRTTotal Cumulative Dose of Xevinapant/ Matched Placebo12383.6 milligrams (mg)Standard Deviation 5375.66
Sequence 2: Placebo + CRTTotal Cumulative Dose of Xevinapant/ Matched Placebo14417.0 milligrams (mg)Standard Deviation 4288.55
Secondary

Treatment Duration

Treatment duration is calculated by study treatment component as (last dose date minus first dose date plus x)/7, where x=8 for xevinapant/matched placebo, x=21 for cisplatin/carboplatin, x=3 for IMRT.

Time frame: Up to end of study (up to 188weeks and 5 days)

Population: The SAF set included all participants who received any dose of any of the study intervention (xevinapant/matched placebo, cisplatin/carboplatin, IMRT). Here number analyzed signifies participants who were evaluable for each specific category.

ArmMeasureGroupValue (MEDIAN)
Sequence 1: Debio 1143 + CRTTreatment DurationXevinapant/matched placebo18.00 weeks
Sequence 1: Debio 1143 + CRTTreatment DurationCisplatin8.86 weeks
Sequence 1: Debio 1143 + CRTTreatment DurationCarboplatin3.00 weeks
Sequence 1: Debio 1143 + CRTTreatment DurationIMRT7.43 weeks
Sequence 2: Placebo + CRTTreatment DurationIMRT7.43 weeks
Sequence 2: Placebo + CRTTreatment DurationXevinapant/matched placebo18.00 weeks
Sequence 2: Placebo + CRTTreatment DurationCarboplatin3.00 weeks
Sequence 2: Placebo + CRTTreatment DurationCisplatin9.00 weeks

Source: ClinicalTrials.gov · Data processed: Feb 15, 2026