PMID- 34352361 OWN - NLM STAT- MEDLINE DCOM- 20210914 LR - 20210914 IS - 1879-0461 (Electronic) IS - 1040-8428 (Linking) VI - 165 DP - 2021 Sep TI - Toxicity after moderately hypofractionated versus conventionally fractionated prostate radiotherapy: A systematic review and meta-analysis of the current literature. PG - 103432 LID - S1040-8428(21)00220-1 [pii] LID - 10.1016/j.critrevonc.2021.103432 [doi] AB - BACKGROUND: Moderately hypofractionated radiotherapy (RT) currently represents the standard RT approach for all prostate cancer (PCa) risk categories. We performed a systematic review and meta-analysis of available literature, focusing on acute and late genitourinary (GU) and gastrointestinal (GI) adverse events (AEs) of moderate hypofractionation for localized PCa. MATERIALS AND METHODS: Literature search was performed and two independent reviewers selected the records according to the following Population (P) Intervention (I) Comparator (C) and Outcomes (O) (PICO) question: "In patients affected by localized PCa (P), moderately hypofractionated RT (defined as a treatment schedule providing a single dose per fraction of 3-4.5 Gy) (I) can be considered equivalent to conventionally fractionated RT (C) in terms of G > 2 GI and GU acute and late adverse events (O)?". Bias assessment was performed using Cochrane Cochrane Collaboration's Tool for Assessing Risk of Bias. RESULTS: Thirteen records were identified and a meta-analysis was performed. Risk of acute GI and GU > 2 adverse events in the moderately hypofractionated arm was increased by 9.8 % (95 %CI 4.8 %-14.7 %; I(2) = 57 %) and 1.5 % (95 % CI -1.5 %-4.4 %; I(2) = 0%), respectively. DISCUSSION: Overall, majority of trials included in our meta-analysis suggested that moderately hypofractionated RT is equivalent, in terms of GI and GU adverse events, to conventional fractionation. Pooled analysis showed a trend to increased GI toxicity after hypofractionated treatment, but this might be related to dose escalation rather than hypofractionation. CI - Copyright (c) 2021 Elsevier B.V. All rights reserved. FAU - Francolini, G AU - Francolini G AD - Radiation Oncology Unit, University of Florence, Florence, Italy. FAU - Detti, B AU - Detti B AD - Radiation Oncology Unit, University of Florence, Florence, Italy. Electronic address: beatrice.detti@aouc.unifi.it. FAU - Becherini, C AU - Becherini C AD - Radiation Oncology Unit, University of Florence, Florence, Italy. FAU - Caini, S AU - Caini S AD - Cancer Risk Factors and Lifestyle Epidemiology Unit, Institute for Cancer Research, Prevention and Clinical Network (ISPRO), Florence, Italy. FAU - Ingrosso, G AU - Ingrosso G AD - Radiation Oncology Section, Department of Surgical and Biomedical Science, University of Perugia, Italy. FAU - Di Cataldo, Vanessa AU - Di Cataldo V AD - Radiation Oncology Unit, University of Florence, Florence, Italy. FAU - Stocchi, G AU - Stocchi G AD - Radiation Oncology Unit, University of Florence, Florence, Italy. FAU - Salvestrini, V AU - Salvestrini V AD - Radiation Oncology Unit, University of Florence, Florence, Italy. FAU - Lancia, A AU - Lancia A AD - Department of Medical Sciences and Infectious Disease, Radiation Oncology Unit, Fondazione IRCCS, Policlinico San Matteo, Pavia, Italy. FAU - Scartoni, D AU - Scartoni D AD - Proton Treatment Center, Azienda Provinciale Per i Servizi Sanitari, Trento, Italy. FAU - Giacomelli, I AU - Giacomelli I AD - Proton Treatment Center, Azienda Provinciale Per i Servizi Sanitari, Trento, Italy. FAU - Sardaro, A AU - Sardaro A AD - Section of Radiology and Radiation Oncology, Interdisciplinary Department of Medicine, University of Bari Aldo Moro, Bari, Italy. FAU - Carbonara, R AU - Carbonara R AD - Radiation Oncology Department, General Regional Hospital F. Miulli, Acquaviva delle Fonti, BA, Italy. FAU - Borghesi, S AU - Borghesi S AD - Radiotherapy Department, Azienda USL Toscana Sud Est, San Donato Hospital, Arezzo, Italy. FAU - Aristei, C AU - Aristei C AD - Radiation Oncology Section, Department of Surgical and Biomedical Science, University of Perugia, Italy. FAU - Livi, L AU - Livi L AD - Radiation Oncology Unit, University of Florence, Florence, Italy. LA - eng PT - Journal Article PT - Meta-Analysis PT - Review PT - Systematic Review DEP - 20210803 PL - Netherlands TA - Crit Rev Oncol Hematol JT - Critical reviews in oncology/hematology JID - 8916049 SB - IM MH - Dose Fractionation, Radiation MH - *Gastrointestinal Diseases MH - Humans MH - Male MH - *Prostatic Neoplasms/radiotherapy MH - Radiation Dose Hypofractionation MH - *Radiotherapy, Intensity-Modulated OTO - NOTNLM OT - Hypofractionation OT - Prostate OT - Toxicity EDAT- 2021/08/06 06:00 MHDA- 2021/09/15 06:00 CRDT- 2021/08/05 20:16 PHST- 2020/10/12 00:00 [received] PHST- 2021/07/06 00:00 [revised] PHST- 2021/07/28 00:00 [accepted] PHST- 2021/08/06 06:00 [pubmed] PHST- 2021/09/15 06:00 [medline] PHST- 2021/08/05 20:16 [entrez] AID - S1040-8428(21)00220-1 [pii] AID - 10.1016/j.critrevonc.2021.103432 [doi] PST - ppublish SO - Crit Rev Oncol Hematol. 2021 Sep;165:103432. doi: 10.1016/j.critrevonc.2021.103432. Epub 2021 Aug 3.