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Spots Global Cancer Trial Database for De-escalation Study for Stage IIa/IIb < 3 cm Seminoma

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Trial Identification

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

Official Title: Prospective Therapeutic De-escalation and miRNA-M371 Biomarker Evaluation Phase II Study for Stage IIa/IIb < 3 cm Seminomas

Study ID: NCT05529251

Study Description

Brief Summary: 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.

Detailed Description: Stage II seminoma is defined by the presence of retroperitoneal lymph node metastases. It concerns approximately 15% of patients with seminoma. The standard treatment for patients with stage IIa/b seminoma, after orchiectomy, is extended lumbo-aortic/ipsilateral iliac radiotherapy (RT). Performing chemotherapy (CT) with 3 courses of Bleomycin-Etoposide-Cisplatin (BEP) or 4 courses of Etoposide-Cisplatin (EP) is an alternative. The optimal treatment choice remains controversial. Both treatment modalities are associated with excellent efficacy but also acute and late toxicities. European Society of Medical Oncology (ESMO) guidelines recommended in equal measure CT and RT for stage IIa. A recent systematic review concluded that RT and cisplatin-based combination CT are equally effective in clinical stage IIa/IIb seminoma, with a trend in favor of chemotherapy in stage IIb because of lower relapse rate. However, due to the rarity of stage II seminoma, a sufficiently powered randomized trial comparing radiotherapy with chemotherapy is unlikely to be completed. De-escalation strategies are required to minimize acute and long-term toxicities while maintaining efficacy. De-escalated treatment for seminoma patients with stage IIb/IIC/III and good prognosis according to International Germ Cell Cancer Collaborative Group (IGCCCG), based on negative PET after 2 cycles of EP chemotherapy, is feasible and safe according to SEMITEP results (cohort 2). In case of negative PET, 1 additional cycle of CT with carboplatin AUC7 was administered. Furthermore, serum levels of microRNA (miR)-371a-3p (miRNA-M371) have been significantly associated with clinical stage, primary tumor size and response to treatment in testicular germ cell tumors, with sensitivity and specificity higher than those of classic markers (hCGt, LDH). However, further evaluations are needed before modifying clinical practices. We propose to conduct a multicenter, prospective, randomized, non-comparative, de-escalation phase II study in patients with stage IIa/IIb seminoma \< 3 cm, evaluating: * a more de-escalated CT treatment: 1 cycle of EP followed, in case of negative PET, by either a boost of RT on lymph node or 1 cycle of carboplatin AUC7 * the biomarker miRNA-M371 in therapeutic decision and correlation with PET. In parallel, eligible patients scheduled to receive standard lombo-aortic RT will be registered in an observational cohort.

Eligibility

Minimum Age: 18 Years

Eligible Ages: ADULT, OLDER_ADULT

Sex: MALE

Healthy Volunteers: No

Locations

CHU Besançon, Besançon, , France

CHU Bordeaux, Bordeaux, , France

Centre François Baclesse, Caen, , France

Centre Jean Perrin, Clermont-Ferrand, , France

Centre Oscar Lambret, Lille, , France

CHU de Limoges, Limoges, , France

Centre Leon Bérard, Lyon, , France

Institut Paoli Calmettes, Marseille, , France

Centre Antoine Lacassagne, Nice, , France

Hôpital Saint Louis, Paris, , France

ICO René Gauducheau, Saint-Herblain, , France

Hôpital Foch, Suresnes, , France

Institut Universitaire de Cancer de Toulouse (IUCT-O), Toulouse, , France

Institut de Cancérologie de Lorraine, Vandœuvre-lès-Nancy, , France

Institut Gustave Roussy, Villejuif, , France

Contact Details

Name: Aude FLECHON, Dr

Affiliation: Centre Leon Berard (Lyon, France)

Role: PRINCIPAL_INVESTIGATOR

Useful links and downloads for this trial

Clinicaltrials.gov

Google Search Results

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