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Biofeedback-Assisted Pelvic Floor Rehabilitation for Radiation-Induced Sexual Dysfunction in Cervical Cancer Survivors

2026年5月18日 更新者：Marwa Elsayed Mohamed, PhD、Beni-Suef University

Efficacy of Biofeedback-Assisted Pelvic Floor Muscle Training on Pelvic Radiation-Induced Sexual Dysfunction and Pelvic Floor Dysfunction in Cervical Cancer Survivors : A Randomized Controlled Trial

This randomized controlled trial aims to evaluate the efficacy of biofeedback-assisted pelvic floor muscle training on radiation-induced sexual dysfunction in cervical cancer survivors following pelvic radiotherapy. Participants will be randomly assigned to receive either biofeedback-assisted pelvic floor rehabilitation or supervised conventional pelvic floor muscle training without biofeedback for 8 weeks.

研究概览

地位

招聘中

条件

干预/治疗

详细说明

Cervical cancer survivors commonly experience persistent sexual dysfunction and pelvic floor impairments following pelvic radiotherapy, including dyspareunia, reduced vaginal lubrication, vaginal stenosis, decreased genital sensation, pelvic pain, urinary symptoms, and reduced quality of life.

These complications are mainly attributed to radiation-induced fibrosis, vascular changes, and neuromuscular dysfunction affecting pelvic floor muscle performance and coordination, in addition to psychological distress.

Pelvic floor muscle training (PFMT) is an established conservative intervention for improving pelvic floor muscle strength, coordination, and sexual function in women with pelvic floor dysfunction. Electromyographic biofeedback may enhance the effectiveness of PFMT by providing real-time visual and auditory feedback that facilitates motor learning, improves voluntary muscle activation, enhances relaxation capacity, and optimizes contraction-relaxation coordination.

This study is novel as it specifically evaluates electromyographic biofeedback-assisted pelvic floor muscle training in cervical cancer survivors with radiation-induced sexual dysfunction, an area with limited high-quality randomized controlled evidence. Unlike previous studies on general pelvic floor disorders, it uses a cancer-specific population, a standardized supervised active comparator, and integrates both subjective outcomes (Female Sexual Function Index (FSFI)) and objective pelvic floor electromyography measures. The design allows isolation of the specific added benefit of biofeedback over conventional pelvic floor muscle training.

研究类型

介入性

注册 (估计的)

60

阶段

  • 不适用

联系人和位置

本节提供了进行研究的人员的详细联系信息，以及有关进行该研究的地点的信息。

学习联系方式

学习地点

  • 埃及
      • Banī Suwayf、埃及
        • 招聘中
        • Out patient clinic , faculty of Physical Therapy, Beni Sueif university

参与标准

研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

  • 成人

接受健康志愿者

不

描述

Inclusion Criteria:

  1. Female participants aged 30-60 years.
  2. Histologically confirmed diagnosis of cervical cancer (any stage at diagnosis) and completion of primary treatment.
  3. Completion of pelvic radiotherapy (external beam radiotherapy and/or brachytherapy) ≥3 months prior to enrollment.
  4. Presence of radiation-induced sexual dysfunction, defined as a Female Sexual Function Index (FSFI) score ≤26.55.
  5. Self-reported sexual activity within the previous 6 months.
  6. Medically stable with no current oncologic indication for active treatment, confirmed by treating oncologist.
  7. Ability to understand study procedures and provide written informed consent.

Exclusion Criteria:

  1. Evidence of recurrent, persistent, or metastatic cervical cancer.
  2. Participation in pelvic floor muscle training or biofeedback-based rehabilitation within the previous 6 months.
  3. Presence of severe pelvic organ prolapse (stage III-IV).
  4. Active pelvic infection, pelvic inflammatory disease, or untreated vaginal infection.
  5. Ongoing significant vaginal bleeding of unknown or pathological origin.
  6. Untreated or active urinary tract infection at the time of enrollment.
  7. Neurological disorders affecting pelvic floor function (e.g., spinal cord injury, multiple sclerosis).
  8. Severe psychiatric illness or uncontrolled mental health disorder affecting participation.
  9. Cognitive impairment preventing understanding of instructions or adherence to protocol.
  10. Current pregnancy or planning pregnancy during the study period.
  11. Participation in another interventional clinical or rehabilitation trial within the last 3 months or during the study period.

学习计划

本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。

研究是如何设计的？

设计细节

  • 主要用途：治疗
  • 分配：随机化
  • 介入模型：并行分配
  • 屏蔽：单身的

武器和干预

参与者组/臂
干预/治疗
实验性的：Biofeedback-Assisted Pelvic Floor Muscle Rehabilitation
Participants will receive supervised biofeedback-assisted pelvic floor muscle rehabilitation three sessions weekly for 8 weeks. Each treatment session will last approximately 45-60 minutes and will include pelvic floor muscle training, electromyographic biofeedback, coordination exercises, diaphragmatic breathing, relaxation training, stretching exercises, and a structured home exercise program.
行为的：Biofeedback-Assisted Pelvic Floor Muscle Rehabilitation
An intravaginal surface electromyographic probe connected to a pelvic floor biofeedback device will be used during supervised pelvic floor muscle training sessions conducted three times per week for 8 weeks, with each session lasting 45-60 minutes. The protocol will include slow pelvic floor muscle contractions (8-12 repetitions per set, each held for 5-10 seconds with equal relaxation time) and fast contractions (10-15 rapid contractions per set), performed for 2-3 sets per session with short rest intervals (1-2 minutes) between sets according to participant tolerance. Visual and auditory biofeedback will be provided throughout to enhance motor learning, muscle awareness, coordination, contraction quality, and relaxation control. Training intensity, contraction duration, and repetitions will be progressively increased based on individual performance and fatigue response. In addition, participants will perform a structured home exercise program five days per week.
有源比较器：Supervised Conventional Pelvic Floor Muscle Training
Participants will receive supervised conventional pelvic floor muscle training without electromyographic biofeedback three sessions weekly for 8 weeks. Participants will additionally receive pelvic health education, lifestyle advice, vaginal care recommendations, and a structured home exercise program.
行为的：Conventional Pelvic Floor Muscle Training
Participants will perform supervised pelvic floor muscle exercises including slow sustained contractions and rapid contractions without biofeedback guidance. Exercise frequency, duration, and progression will be matched to the experimental group.

研究衡量的是什么？

主要结果指标

结果测量
措施说明
大体时间
Female Sexual Function Index (FSFI)
大体时间：Baseline, 8 weeks, and 3-month follow-up
Female sexual function will be assessed using the Female Sexual Function Index (FSFI), a validated multidimensional questionnaire evaluating sexual desire, arousal, lubrication, orgasm, satisfaction, and pain domains. Total scores range from 2 to 36, with lower scores indicating greater sexual dysfunction.
Baseline, 8 weeks, and 3-month follow-up

次要结果测量

结果测量
措施说明
大体时间
Pelvic Floor Electromyographic Activity
大体时间：Baseline, 8 weeks, and 3-month follow-up
Resting pelvic floor muscle activity, maximal voluntary contraction amplitude, and average contraction amplitude will be recorded in microvolts (µV) using intravaginal surface electromyography (sEMG). Resting activity will reflect baseline pelvic floor muscle tone during relaxation, while maximal voluntary contraction amplitude and average contraction amplitude will reflect pelvic floor muscle activation strength and recruitment during voluntary contractions. Average values obtained from three maximal voluntary contractions will be used for statistical analysis.
Baseline, 8 weeks, and 3-month follow-up
Hospital Anxiety and Depression Scale (HADS)
大体时间：Baseline, 8 weeks, and 3-month follow-up
Psychological well-being will be assessed using the Hospital Anxiety and Depression Scale (HADS), a validated self-reported questionnaire consisting of 14 items divided into two subscales assessing anxiety and depression symptoms. Each subscale score ranges from 0 to 21, with higher scores indicating greater psychological distress. Scores of 0-7 are considered normal, 8-10 indicate borderline abnormal symptoms, and 11-21 indicate clinically significant anxiety or depression.
Baseline, 8 weeks, and 3-month follow-up

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

赞助

Beni-Suef University

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始 (实际的)

2026年5月19日

初级完成 (估计的)

2027年3月15日

研究完成 (估计的)

2027年3月31日

研究注册日期

首次提交

2026年5月13日

首先提交符合 QC 标准的

2026年5月13日

首次发布 (实际的)

2026年5月19日

研究记录更新

最后更新发布 (实际的)

2026年5月20日

上次提交的符合 QC 标准的更新

2026年5月18日

最后验证

2026年5月1日

更多信息

与本研究相关的术语

关键字

其他相关的 MeSH 术语

其他研究编号

  • Radiotherapy FSD 2026

计划个人参与者数据 (IPD)

计划共享个人参与者数据 (IPD)？

未定

药物和器械信息、研究文件

研究美国 FDA 监管的药品

不

研究美国 FDA 监管的设备产品

不

此信息直接从 clinicaltrials.gov 网站检索，没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求，请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改，我们的网站上也会自动更新.

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