E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Resected squamous cell carcinoma of the head and neck |
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E.1.1.1 | Medical condition in easily understood language |
Resected squamous cell carcinoma of the head and neck |
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E.1.1.2 | Therapeutic area | Diseases [C] - Cancer [C04] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 26.1 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10060121 |
E.1.2 | Term | Squamous cell carcinoma of head and neck |
E.1.2 | System Organ Class | 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps) |
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E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
The purpose of this study is to demonstrate improvement in Disease-Free Survival (DFS) with xevinapant compared to placebo when added to RT irrespective of subsequent anticancer therapy. |
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E.2.2 | Secondary objectives of the trial |
- To demonstrate improvement in OS with xevinapant compared to placebo when added to RT followed by subsequent anticancer therapy - To evaluate time to subsequent cancer treatments in participants treated with xevinapant compared to placebo when added to RT - To evaluate the safety and tolerability of xevinapant compared to placebo when added to RT - To evaluate xevinapant compared to placebo when added to RT followed by xevinapant monotherapy in terms of patient-reported head and neck pain, swallowing, and speech as measured by the EORTC H&N35 sub scales, patient-reported fatigue, physical function, and global health status as measured by the EORTC QLQ C-30 sub scales and EQ-5D-5L VAS |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
• Participants with Eastern Cooperative Oncology Group Performance Status (ECOG PS) 0-1 • Participants with histologically confirmed squamous cell carcinoma with one of the following primary sites: oral cavity, oropharynx, hypopharynx or larynx. Participants have received surgery with curative intent on these sites in the past 4 to 8 weeks before start of treatment (Cycle 1 Day 1) • Oropharynx (OPC) participants must have known human papillomavirus (HPV) status as determined by p16 expression using immunohistochemistry ICH) • Participants with no residual disease by computed tomography (CT) or magnetic resonance imaging (MRI) and have a high risk of relapse with 1 or 2 of the following criteria, confirmed by local histopathology: • nodal extra-capsular extension (ECE) and positive resection margins (R1 or close margin less than or equal to (<=) 1 millimeter (mm) • Are unfit to receive high-dose cisplatin by meeting one or more of the following criteria: estimated glomerular filtration rate (eGFR) < 60 milliliter per minute per 1.73 meter square (mL/min /1.73 m^2); History of hearing impairment, defined as Grade >= 2 audiometric hearing loss or tinnitus Grade >=2. An audiogram is not required if one of the other criteria meets unfitness to receive high-dose cisplatin; Peripheral neuropathy > = Grade 2 and if >= 70 years, unfit according to G8 questionnaire (Score <= 14) • Participants with adequate hematologic, renal and hepatic function as defined in the protocol • Other protocol-defined inclusion criteria could apply |
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E.4 | Principal exclusion criteria |
• Any condition, including any uncontrolled disease state other than SCCHN that in the Investigator’s opinion constitutes an inappropriate risk or a contraindication for participation in the study or that could interfere with the study objectives, conduct, or evaluation • Participant with incomplete surgery • Primary tumor of nasopharyngeal, paranasal sinuses, nasal cavity, salivary, thyroid or parathyroid gland, skin or unknown primary site • Prior definitive, neoadjuvant, concurrent or adjuvant (C)RT to the head and neck region which may jeopardize the primary tumor irradiation plan,or any other prior SCCHN systemic treatment, including investigational agents • Participation in any interventional clinical study within 28 days prior to screening or during participation in this study • Known contraindication to undergoing positron emission tomography with 18F-FDG-PET-CT scans, or both contrast-enhanced MRI and contrast enhanced CT scans • Known allergy to Xevinapant (Debio 1143) or any excipient known to be present in Xevinapant (Debio 1143) or in the placebo formulation • Participants with metastatic disease • Other protocol-defined exclusion criteria could apply |
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E.5 End points |
E.5.1 | Primary end point(s) |
Disease-Free Survival (DFS)
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
Time from the date of randomization to the date of first record of disease progression or death, assessed up to 5 years
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E.5.2 | Secondary end point(s) |
1. Overall Survival (OS) 2. Time to Subsequent Cancer Treatments 3. Occurrence of Adverse Events (AEs) and Treatment-related AEs 4. Change from Baseline in European Organization for Research and Treatment of Cancer Quality of Life Head and Neck Module (EORTC QLQ-HN35) Score 5. Change from Baseline in European Organization for research and Treatment of Cancer Quality of Life Core Questionnaire (EORTC QLQ-C30) Score 6. Change from Baseline in EuroQOL 5 Dimension 5 Level Health-Related Quality of Life Measure Visual Analog Scale Score (EQ-5D-5L VAS) |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
1. Time from randomization to death from any cause, assessed up to 5 years 2. Time from randomization to the start of first subsequent cancer treatment, assessed up to 5 years 3. Time from randomization until end of study (assessed up to 5 years) 4. Baseline, Cycle 4 Day 1 [at Week 10 (each cycle is 3 weeks)] and End of treatment (at Week 20) 5. Baseline, Cycle 4 Day 1 [at Week 10 (each cycle is 3 weeks)] and End of treatment (at Week 20) 6. Baseline, Cycle 4 Day 1 [at Week 10 (each cycle is 3 weeks)] and End of treatment (at Week 20) |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | No |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | Yes |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | Yes |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | Yes |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | Yes |
E.8.1.5 | Parallel group | Yes |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | Yes |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 2 |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 24 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 110 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
Argentina |
Switzerland |
Taiwan |
Brazil |
Canada |
China |
Georgia |
India |
Israel |
Japan |
Korea, Republic of |
Mexico |
United Kingdom |
United States |
Austria |
Belgium |
Czechia |
Denmark |
Finland |
France |
Germany |
Greece |
Italy |
Netherlands |
Norway |
Poland |
Portugal |
Romania |
Spain |
Sweden |
Türkiye |
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E.8.7 | Trial has a data monitoring committee | Yes |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 6 |
E.8.9.1 | In the Member State concerned months | 10 |
E.8.9.1 | In the Member State concerned days | 10 |
E.8.9.2 | In all countries concerned by the trial years | 7 |
E.8.9.2 | In all countries concerned by the trial months | 6 |