Early toxicity of a phase II trial of combined salvage radiotherapy and hormone therapy in oligometastatic pelvic node relapses of prostate cancer (OLIGOPELVIS GETUG P07)

Loig Vaugier 1 Clément Palpacuer 2 Emmanuel Rio 1 Aurore Goineau 3 David Pasquier 4, 5 Xavier Buthaud 6 Guy de Laroche 7 Véronique Beckendorf 8 Paul Sargos 9 Gilles Créhange 10 Pascal Pommier 11 Geneviève Loos 12 Ali Hasbini 13 Igor Latorzeff 14 Marlon Silva 15 Fabrice Denis 16 Jean-Léon Lagrange 17 Loïc Campion 18, 2 Stephane Supiot 19, 1, *
* Corresponding author
1 Département de Radio-Oncologie [ICO, Nantes]
2 Département de Biostatistiques [ICO, Nantes]
3 Service de la Radio-Oncologie [Angers]
4 Centre Oscar Lambret - Département universitaire de Radio-Oncologie [Lille]
5 CRIStAL - Centre de Recherche en Informatique, Signal et Automatique de Lille (CRIStAL) - UMR 9189
6 Centre Catherine de Sienne - Département de Radio-Oncologie [Nantes]
7 Institut de Cancérologie de la Loire - Département de Radio-Oncologie [Saint-Priest en Jarez]
8 Centre Alexis Vautrin - Département de Radio-Oncologie [Vandoeuvre-lès-Nancy]
9 Institut Bergonié - Département de Radio-Oncologie [IB, Bordeaux]
10 CGFL Dijon - Département de Radio-Oncologie [Dijon]
11 Centre Léon Bérard - Département de Radio-Oncologie [CLB, Lyon]
12 Centre Jean Perrin - Département de Radio-Oncologie [Clermont-Ferrand]
13 Clinique Pasteur - Département de Radio-Oncologie [Brest]
14 Oncorad Clinique Pasteur - Département de Radio-Oncologie [Toulouse]
15 Centre Francois Baclesse - Département de Radio-Oncologie [Caen]
16 Centre Jean Bernard - Département de Radio-Oncologie [Le Mans]
17 Département de Radio-Oncologie [AP-HP Hôpital Henri Mondor]
18 CRCINA - Département NOHMAD - Equipe 11 - Integrative oncogenomics of multiple myeloma pathogenesis and progression
CRCINA - Centre de recherche de Cancérologie et d'Immunologie / Nantes - Angers
19 CRCINA - Département ONCO - Equipe 14 - Endothelium radiobiology and targeting
CRCINA - Centre de recherche de Cancérologie et d'Immunologie / Nantes - Angers
Abstract : PURPOSE: Limited pelvic nodal relapse of prostatic cancer is a paramount challenge for locoregional salvage treatments. Salvage whole pelvis radiotherapy as considered in the BLINDED trial, is an attractive option but with concerns about its toxicity. This article describes early toxicity with the technique. METHODS AND MATERIALS: BLINDED was a prospective multi-center phase II trial investigating high-dose salvage pelvic irradiation with an additional dose to the fluorocholine-based positron-emission-tomography (FCH-PET)-positive pelvic lymph nodes (PLN), combined with six-month androgen blockade. The prescribed dose was 54 Gy in 1.8 Gy fractions with up to 66 Gy in 2.2 Gy fractions to the pathological PLN. Early toxicity was defined until one year after radiotherapy. Patients quality of life was assessed using the EORTC questionnaires (QLQ-C30 and QLQ-PR25). RESULTS: Seventy-four patients were recruited in fifteen French radiation oncology departments between August 2014 and July 2016. Seven were excluded before treatment because of violation of the inclusion criteria. The intention-to-treat analysis therefore included sixty-seven patients. Half of them had received prior prostatic irradiation. Median age was 67.7 ± 6.5 years. Grade 2 acute urinary toxicity was observed in 9/67 patients (13.4%) and grade 2 one-year toxicity in 4/67 patients (6%). Three patients (4.4%) had grade 3 urinary toxicity. Grade 2 acute digestive toxicity was observed in 10/67 patients (14.9%) and grade 2 one-year toxicity in 4/67 patients (6%). Patients with prior prostate bed irradiation did not exhibit increased urinary or digestive toxicity. EORTC questionnaire scores at one year did not worsen significantly. CONCLUSIONS: The acute and one-year toxicity of the BLINDED protocol was satisfactory, even in patients with a past history of prostatic irradiation.
Keywords : prostate cancer urinary toxicity pelvic reirradiation pelvis salvage irradiation IGRT IMRT bowel toxicity PSMA PET Fluorocholine PET
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CGFL | BERGONIE | VAUTRIN | LAMBRET | BACLESSE | ICO | GAUDUCHEAU | UNIV-ANGERS | FNCLCC | CRISTAL | CRCINA | UNIV-NANTES | UNIV-LILLE | COMUE-NORMANDIE

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Loig Vaugier, Clément Palpacuer, Emmanuel Rio, Aurore Goineau, David Pasquier, et al.. Early toxicity of a phase II trial of combined salvage radiotherapy and hormone therapy in oligometastatic pelvic node relapses of prostate cancer (OLIGOPELVIS GETUG P07). International Journal of Radiation Oncology - Biology - Physics, Elsevier, 2018, 103 (5), pp.1061-1067. ⟨10.1016/j.ijrobp.2018.12.020⟩. ⟨inserm-01980788⟩

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