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Prognostic factors, efficacy, and toxicity of involved-node stereotactic body radiation therapy for lymph node oligorecurrent prostate cancer : An investigation of 117 pelvic lymph nodes.
Cozzi, Salvatore; Botti, Andrea; Timon, Giorgia; Blandino, Gladys; Najafi, Masoumeh; Manicone, Moana; Bardoscia, Lilia; Ruggieri, Maria Paola; Ciammella, Patrizia; Iotti, Cinzia.
Afiliación
  • Cozzi S; Radiation Oncology Unit, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy. salvatore.cozzi@hotmail.it.
  • Botti A; Medical Physics Unit, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy.
  • Timon G; Radiation Oncology Unit, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy.
  • Blandino G; Radiation Oncology Unit, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy.
  • Najafi M; Department of Radiation Oncology Shohadaye Haft-e-Tir Hospital, Iran University of Medical Science, Teheran, Iran.
  • Manicone M; Radiation Oncology Unit, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy.
  • Bardoscia L; Radiation Oncology Unit, S. Luca Hospital, Healtcare Company Tuscany Nord Ovest, Lucca, Italy.
  • Ruggieri MP; Radiation Oncology Unit, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy.
  • Ciammella P; Radiation Oncology Unit, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy.
  • Iotti C; Radiation Oncology Unit, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy.
Strahlenther Onkol ; 198(8): 700-709, 2022 08.
Article en En | MEDLINE | ID: mdl-34757443
ABSTRACT

BACKGROUND:

The optimal radiotherapy regimen is not yet defined in the setting of oligorecurrent prostate cancer (oligorPC). There is evidence of high variability in treatment protocols among different centers worldwide, and no international consensus guidelines on treatment volumes, radiation schedules, and techniques. The purpose of the present retrospective study is to evaluate the efficacy and safety of involved-pelvic-node stereotactic body radiotherapy (SBRT) for oligorPC. MATERIALS AND

METHODS:

Patients with pelvic node oligorPC following primary surgery, radical radiotherapy, or salvage radiotherapy for biochemical or local relapse of prostate cancer who underwent involved-node SBRT with biological effective dose (BED) > 100 Gy, with or without concurrent and adjuvant androgen deprivation therapy (ADT), were retrospectively evaluated. Biochemical progression-free survival (bPFS), distant progression-free survival (DPFS), overall survival (OS), possible prognostic factors, and toxicity outcomes were investigated.

RESULTS:

From November 2012 to December 2019, 74 patients fitted the selection criteria. A total of 117 lesions were treated. Median follow-up was 31 months (range 6-89). Concurrent ADT was administered in 58.1% of patients. The 1­year, 2­year, and 3­year DPFS was 77%, 37%, and 19%, respectively; the 1­year, 2­year, and 3­year OS was 98%, 98%, and 95%, respectively. The presence of a single target lesion was associated with a statistically significant impact on OS. No in-field recurrence occurred. Patients who reached early prostate-specific antigen (PSA) nadir (< 3 months after SBRT) had a lower 3­year survival (p = 0.004). The value of PSA nadir after SBRT and the time between primary treatment and SBRT had an impact on bPFS. Concomitant ADT was associated with improved DPFS. No acute or early late (> 6 months) genitourinary and gastrointestinal adverse events of any grade were reported, albeit with relatively short median follow-up.

CONCLUSION:

SBRT is a safe and effective treatment for oligorPC, with a 100% local control rate in our series. It is not possible to clearly assess the opportunity to postpone ADT prescription in patients with two or more nodal metastases. The number of secondary lesions, time-to-nadir PSA, PSA nadir value, and the time interval between primary treatment and SBRT were identified as prognostic factors. Future prospective randomized studies are desirable to better understand the still open questions regarding the oligorecurrent prostate cancer state.
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Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Asunto principal: Neoplasias de la Próstata / Radiocirugia Tipo de estudio: Guideline / Observational_studies / Prognostic_studies / Risk_factors_studies Límite: Humans / Male Idioma: En Revista: Strahlenther Onkol Asunto de la revista: NEOPLASIAS / RADIOTERAPIA Año: 2022 Tipo del documento: Article País de afiliación: Italia

Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Asunto principal: Neoplasias de la Próstata / Radiocirugia Tipo de estudio: Guideline / Observational_studies / Prognostic_studies / Risk_factors_studies Límite: Humans / Male Idioma: En Revista: Strahlenther Onkol Asunto de la revista: NEOPLASIAS / RADIOTERAPIA Año: 2022 Tipo del documento: Article País de afiliación: Italia