OBJECTIVES:Hypofractionated prostate radiotherapy may increase biologically effective dose delivered while shortening treatment duration, but information on patient-reported urinary, bowel, and sexual function after dose-escalated hypofractionated radiotherapy is limited. We report patient-reported outcomes (PROs) from a randomized trial comparing hypofractionated and conventional prostate radiotherapy. METHODS:Men with localized prostate cancer were enrolled in a trial that randomized men to either conventionally fractionated intensity-modulated radiation therapy (CIMRT, 75.6 Gy in 1.8 Gy fractions) or to dose-escalated hypofractionated IMRT (HIMRT, 72 Gy in 2.4 Gy fractions). Questionnaires assessing urinary, bowel, and sexual function were completed pretreatment and at 2, 3, 4, and 5 years after treatment. RESULTS: Of 203 eligible patients, 185 were evaluable for PROs. A total of 173 completed the pretreatment questionnaire (82 CIMRT, 91 HIMRT) and 102 completed the 2-year questionnaire (46 CIMRT, 56 HIMRT). Patients who completed PROs were similar to those who did not complete PROs (all P>0.05). Patient characteristics, clinical characteristics, and baseline symptoms were well balanced between the treatment arms (all P>0.05). There was no difference in patient-reported bowel (urgency, control, frequency, or blood per rectum), urinary (dysuria, hematuria, nocturia, leakage), or sexual symptoms (erections firm enough for intercourse) between treatment arms at 2, 3, 4, and 5 years after treatment (all P>0.01). Concordance between physician-assessed toxicity and PROs varied across urinary and bowel domains. DISCUSSION: We did not detect an increase in patient-reported urinary, bowel, and sexual symptom burden after dose-escalated intensity-modulated prostate radiation therapy using a moderate hypofractionation regimen (72 Gy in 2.4 Gy fractions) compared with conventionally fractionated radiation.
RCT Entities:
OBJECTIVES: Hypofractionated prostate radiotherapy may increase biologically effective dose delivered while shortening treatment duration, but information on patient-reported urinary, bowel, and sexual function after dose-escalated hypofractionated radiotherapy is limited. We report patient-reported outcomes (PROs) from a randomized trial comparing hypofractionated and conventional prostate radiotherapy. METHODS:Men with localized prostate cancer were enrolled in a trial that randomized men to either conventionally fractionated intensity-modulated radiation therapy (CIMRT, 75.6 Gy in 1.8 Gy fractions) or to dose-escalated hypofractionated IMRT (HIMRT, 72 Gy in 2.4 Gy fractions). Questionnaires assessing urinary, bowel, and sexual function were completed pretreatment and at 2, 3, 4, and 5 years after treatment. RESULTS: Of 203 eligible patients, 185 were evaluable for PROs. A total of 173 completed the pretreatment questionnaire (82 CIMRT, 91 HIMRT) and 102 completed the 2-year questionnaire (46 CIMRT, 56 HIMRT). Patients who completed PROs were similar to those who did not complete PROs (all P>0.05). Patient characteristics, clinical characteristics, and baseline symptoms were well balanced between the treatment arms (all P>0.05). There was no difference in patient-reported bowel (urgency, control, frequency, or blood per rectum), urinary (dysuria, hematuria, nocturia, leakage), or sexual symptoms (erections firm enough for intercourse) between treatment arms at 2, 3, 4, and 5 years after treatment (all P>0.01). Concordance between physician-assessed toxicity and PROs varied across urinary and bowel domains. DISCUSSION: We did not detect an increase in patient-reported urinary, bowel, and sexual symptom burden after dose-escalated intensity-modulated prostate radiation therapy using a moderate hypofractionation regimen (72 Gy in 2.4 Gy fractions) compared with conventionally fractionated radiation.
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Authors: Antonio Lazo; Alejandro de la Torre-Luque; Gregorio Arregui; Daniel Rivas; Ana Serradilla; Joaquin Gómez; Francisca Jurado; María Isabel Núñez; Escarlata López Journal: Biology (Basel) Date: 2022-03-11