Diagnostic Performance of a Flexible Penile Monitoring System for ED
Diagnostic Performance Evaluation and Clinical Translation Research of a New Intelligent Flexible Penile Monitoring System for Erectile Dysfunction
연구 개요
상태
상태
정황
정황
개입 / 치료
개입 / 치료
상세 설명
Nocturnal Penile Tumescence (NPT) monitoring is essential for differentiating psychogenic from organic ED. However, traditional mechanical devices pose physical loads that may trigger arousals during REM sleep. This study introduces a flexible sensing technology with an ultra-thin (<0.8mm) layer to achieve "unfelt" monitoring.
The primary objective is to assess the consistency of physical parameters (peak rigidity % and tumescence) between the flexible system and RigiScan Plus. Participants will be randomized 1:1 into two sequences for a two-night crossover monitoring process with a 3-7 day washout period. Secondary objectives include evaluating clinical diagnosis agreement (Kappa), sleep quality metrics (Arousal frequency), and patient comfort scores (VAS). Additionally, the study will explore the correlation between "deformation heatmaps" and hemodynamic indicators from Penile Color Doppler Ultrasound (CDDU) to improve fine-grained ED subtyping.
연구 유형
연구 유형
등록 (추정된)
등록
연락처 및 위치
연구 연락처
연구 연락처
- 이름: Chao Sun
- 전화번호: +86 13813966939
- 이메일: fertility@126.com
연구 장소
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Jiangsu
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Nanjing, Jiangsu, 중국, 210009
- Zhongda Hospital Southeast University
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연락하다:
- Chao Sun
- 전화번호: +86-13813966939
- 이메일: fertility@126.com
-
-
참여기준
자격 기준
자격 기준
공부할 수 있는 나이
- 성인
- 고령자
건강한 자원 봉사자를 받아들입니다
샘플링 방법
연구 인구
설명
Inclusion Criteria:
- Males aged 18-70 years with good communication and compliance.
- Able to follow clinical Standard Operating Procedures (SOPs) and complete two-stage nocturnal monitoring and clinic-induced tests.
- Fully informed about the study and signed the informed consent form.
- For ED Group: Clinically diagnosed with erectile dysfunction with an IIEF-5 score < 21.
- For Healthy Group: Normal erectile function, no history of related physiological diseases or sexual psychological disorders, with an IIEF-5 score ≥ 21.
Exclusion Criteria:
- Systemic diseases: Severe cardiovascular disease (e.g., recent myocardial infarction, unstable angina), uncontrolled severe diabetes, or severe obstructive sleep apnea syndrome.
- Local anatomical factors: Severe penile malformation, spinal cord injury, or organic structural damage caused by pelvic fracture; or major surgery within the last six months.
- Skin and allergy factors: Active infection or eczema in the penile area, or known allergy to flexible materials (medical-grade silicone/adhesives).
- Mental and psychological factors: Untreated or unstable severe depression, anxiety, or other mental disorders.
- Medication interference: Current use of PDE5 inhibitors, androgens, anti-androgens, or drugs that significantly interfere with REM sleep structure.
- Other factors: Currently participating in other interventional clinical trials, or judged by researchers to have poor compliance.
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
그룹/코호트 수
코호트 및 개입
그룹/코호트그룹/코호트 |
개입 / 치료개입 / 치료 |
|---|---|
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ED Patient Group
Males aged 18-70 years diagnosed with erectile dysfunction (ED) for more than 6 months, with an IIEF-5 score of less than 21.
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A novel, ultra-thin (<0.8mm) flexible sensing system used for prospective monitoring of penile rigidity and tumescence during sleep.
RigiScan Plus
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Healthy Volunteer Group
Healthy male volunteers aged 18-70 years with normal erectile function and an IIEF-5 score of 21 or greater.
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A novel, ultra-thin (<0.8mm) flexible sensing system used for prospective monitoring of penile rigidity and tumescence during sleep.
RigiScan Plus
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연구는 무엇을 측정합니까?
주요 결과 측정
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Measurement Accuracy of Peak Rigidity
기간: Day 1 and Day 8
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Mean bias and 95% limits of agreement for peak rigidity (%) between the novel flexible system and RigiScan Plus.
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Day 1 and Day 8
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Measurement Accuracy of Maximum Girth Expansion
기간: Day 1 and Day 8
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Mean bias and 95% limits of agreement for maximum girth expansion (cm) between the novel flexible system and RigiScan Plus.
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Day 1 and Day 8
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2차 결과 측정
2차 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Clinical Diagnosis Agreement Rate
기간: Day 1 and Day 8
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The degree of agreement in diagnostic conclusions (normal, psychogenic, or organic ED) between the two systems, evaluated using Cohen's Kappa coefficient.
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Day 1 and Day 8
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Sleep Efficiency
기간: Day 1 and Day 8
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Sleep efficiency, defined as the percentage of total sleep time spent asleep out of the total time spent in bed (%), collected by a medical-grade sleep recorder.
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Day 1 and Day 8
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REM Sleep Percentage
기간: Day 1 and Day 8
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Percentage of total sleep time spent in the Rapid Eye Movement (REM) sleep stage (%), measured by a medical-grade sleep recorder.
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Day 1 and Day 8
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Unintended Arousal Frequency
기간: Day 1 and Day 8
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Frequency of unintended arousals (number of events per hour) during sleep, measured by a medical-grade sleep recorder.
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Day 1 and Day 8
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Subjective Sleep Perception Score (PSQI)
기간: Day 2 and Day 8
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Participant subjective sleep perception evaluated using the Pittsburgh Sleep Quality Index (PSQI).
The score ranges from 0 to 21, where higher scores indicate worse sleep quality.
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Day 2 and Day 8
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Subjective Wearing Comfort Score
기간: Day 2 and Day 8
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Participant subjective wearing comfort evaluated using the Visual Analogue Scale (VAS).
The scale ranges from 0 (extreme discomfort) to 10 (maximum comfort), where higher scores indicate better comfort
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Day 2 and Day 8
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Participant Scheme Preference
기간: Day 8
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Number of participants who express a final preference for the flexible monitoring system versus RigiScan Plus.
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Day 8
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Response Latency During AVSS
기간: Day 1
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The response latency, defined as the time delay in seconds from the onset of Audiovisual Sexual Stimulation (AVSS) to a penile rigidity increase of more than 10%.
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Day 1
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Congestion Initiation Slope During AVSS
기간: Day 1
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Congestion initiation slope (rigidity change rate, % per second) reflected by deformation heatmaps during the Audiovisual Sexual Stimulation (AVSS) test.
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Day 1
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Correlation with Vascular Subtyping Characteristics
기간: Within 1 week after monitoring.
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Correlation analysis between morphology feature vectors from deformation heatmaps and hemodynamic parameters measured by Penile Color Doppler Ultrasound (CDDU).
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Within 1 week after monitoring.
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공동 작업자 및 조사자
수사관
수사관
- 연구 의자: Bin Xu, Zhongda hospital
연구 기록 날짜
연구 주요 날짜
연구 시작 (추정된)
연구 시작
기본 완료 (추정된)
기본 완료
연구 완료 (추정된)
연구 완료
연구 등록 날짜
최초 제출
최초 제출
QC 기준을 충족하는 최초 제출
QC 기준을 충족하는 최초 제출
처음 게시됨 (실제)
처음 게시됨
연구 기록 업데이트
마지막 업데이트 게시됨 (실제)
마지막 업데이트 게시됨
QC 기준을 충족하는 마지막 업데이트 제출
QC 기준을 충족하는 마지막 업데이트 제출
마지막으로 확인됨
마지막으로 확인됨
추가 정보
이 연구와 관련된 용어
추가 관련 MeSH 약관
기타 연구 ID 번호
기타 연구 ID 번호
- 2026ZDSYLL244-P01
개별 참가자 데이터(IPD) 계획
개별 참가자 데이터(IPD)를 공유할 계획입니까?
약물 및 장치 정보, 연구 문서
미국 FDA 규제 의약품 연구
미국 FDA 규제 기기 제품 연구
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