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Study identifier: NCT05529251 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

De-escalation Study for Stage IIa/IIb < 3 cm Seminoma

Condition: Seminoma · Stage II  ·  Sponsor: Centre Leon Berard

PhasePhase 2
Planned participants90
Who can joinMale, 18 Years to no upper limit
Healthy volunteersNo

About this study

Phase II, multicenter, prospective, randomized, non-comparative, de-escalation study. Patients with stage IIa/IIb \< 3 cm seminoma histologically proved after orchiectomy will be included in the study and will receive 1 cycle of Etoposide Cisplatine (EP) chemotherapy. Patients with negative week-3 PET-scan after the EP cycle, will be randomized (1:1 ratio, stratification according to the disease stage (stage IIa versus IIb seminoma)) to receive either radiotherapy (RT) boost on lymph nodes or 1 cycle of carboplatin AUC7 chemotherapy. Patients with positive week-3 PET-scan will received 3 additional cycles of EP chemotherapy. In parallel, eligible patients scheduled to receive standard lombo-aortic RT will be registered in an observational cohort.

This description comes directly from the study's public registry record.

Talk to the study team

Ellen BLANC  ·  +33 4 78 78 29 67  ·  ellen.blanc@lyon.unicancer.fr

Aude FLECHON, Dr  ·  + 33 4 78 78 26 43  ·  aude.flechon@lyon.unicancer.fr

Always discuss trial participation with your own doctor first.

Locations (15)

CHU BesançonBesançon, FranceNot Yet Recruiting
CHU BordeauxBordeaux, FranceRecruiting
Centre François BaclesseCaen, FranceRecruiting
Centre Jean PerrinClermont-Ferrand, FranceRecruiting
Centre Oscar LambretLille, FranceRecruiting
CHU de LimogesLimoges, FranceRecruiting
Centre Leon BérardLyon, FranceRecruiting
Institut Paoli CalmettesMarseille, FranceRecruiting
Centre Antoine LacassagneNice, FranceRecruiting
Hôpital Saint LouisParis, FranceNot Yet Recruiting
ICO René GauducheauSaint-Herblain, FranceRecruiting
Hôpital FochSuresnes, FranceNot Yet Recruiting

+ 3 more locations — full list on the registry record.

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Source record: clinicaltrials.gov/study/NCT05529251