A Randomized, Double-blind, Placebo-controlled, 2-arm Phase III Study to Assess Efficacy and Safety of Xevinapant and Radiotherapy Compared to Placebo and Radiotherapy for Demonstrating Improvement of Disease-free Survival in Participants With Resected Squamous Cell Carcinoma of the Head and Neck, Who Are at High Risk for Relapse and Are Ineligible for High-dose Cisplatin (XRAY VISION)

  • End date
    Dec 16, 2030
  • participants needed
  • sponsor
    EMD Serono Research & Development Institute, Inc.
Updated on 25 October 2022
squamous cell carcinoma
intensity-modulated radiation therapy
locally advanced squamous cell carcinoma


The purpose of this study is to demonstrate the superior efficacy of Xevinapant (Debio 1143) versus placebo when added to radiotherapy in the treatment of high-risk participants with resected locally advanced squamous cell carcinoma of the head and neck (LA SCCHN) who are ineligible to receive cisplatin-based chemoradiation concurrently. Study details include: Study duration: Participants will be followed until the last on-study participant reaches his/her 60-month post-randomization visit, a decision to end the study has been triggered, or until premature discontinuation from study, whichever occurs first. Treatment duration: 18 weeks, consisting of six 3-week cycles. Health measurement/observation: Improved Disease-Free Survival. Visit frequency: Weekly visit during combination therapy period, once every 3 weeks during monotherapy period, and every 3, 4, or 6 months during the Disease-Free Survival Follow-up period in Year 1, 2 and 3, or 4 and 5 (with telephone contact in between), respectively, and every 3 months (telephone visits allowed) during the Overall Survival Follow-up period.

Condition Head and Neck Cancer
Treatment Placebo, IMRT, Xevinapant (Debio 1143)
Clinical Study IdentifierNCT05386550
SponsorEMD Serono Research & Development Institute, Inc.
Last Modified on25 October 2022


Yes No Not Sure

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 renal, hematologic and hepatic function as defined in the protocol
Other protocol-defined inclusion criteria could apply

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
Participants with incomplete surgery
Participants with metastatic disease
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
Other protocol-defined exclusion criteria could apply
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