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European Larynx Organ Preservation Study (ELOS): Induction chemotherapy with Docetaxel and Cisplatin (TP) followed by radiation compared to additional PD-1 inhibition in CPS ≥1 advanced laryngeal and hypopharyngeal cancer suitable for laryngectomy selected after short induction early response evaluation

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2022-502751-61-00
Enrollment
140
Registered
2023-11-10
Start date
2024-04-10
Completion date
Unknown
Last updated
2025-12-18

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

Conditions

Advanced stage III, calculated as CPS ≥ 1, III, is mandatory., IVA, IVB hypopharyngeal squamous cell carcinoma (SCC) curable by total laryngectomy. Note: PD-L1-expression within tumor tissue biopsy, IVB laryngeal or II

Brief summary

24-month to 48-month laryngectomy-free survival, the survival of the patient without laryngectomy, in the intent-to-treat population (flexible follow-up of the total cohort until 24 months after randomization of the last patient accrued). Laryngectomy or death from any cause count as event. Patients lost to follow-up will be censored at date of last visit with larynx at place.

Detailed description

24-months to 48-months event-free survival (flexible follow-up), 24-months to 48-months overall survival (flexible follow-up), Quality of swallowing (QoS) assessed by FEES at time of randomization, 6 months and 24 months after IC-1

Interventions

DRUGCISPLATIN
DRUGKEYTRUDA 25 mg/mL concentrate for solution for infusion
DRUGDEXAMETHASONE
DRUGDOCETAXEL

Sponsors

University of Leipzig
Lead SponsorOTHER

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
24-month to 48-month laryngectomy-free survival, the survival of the patient without laryngectomy, in the intent-to-treat population (flexible follow-up of the total cohort until 24 months after randomization of the last patient accrued). Laryngectomy or death from any cause count as event. Patients lost to follow-up will be censored at date of last visit with larynx at place.

Secondary

MeasureTime frame
24-months to 48-months event-free survival (flexible follow-up), 24-months to 48-months overall survival (flexible follow-up), Quality of swallowing (QoS) assessed by FEES at time of randomization, 6 months and 24 months after IC-1

Countries

Germany

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 6, 2026