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
調査の概要
状態
状態
条件
条件
介入・治療
介入・治療
詳細な説明
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.
研究の種類
研究の種類
入学 (推定)
入学
連絡先と場所
研究連絡先
研究連絡先
- 名前:Chao Sun
- 電話番号:+86 13813966939
- メール:fertility@126.com
研究場所
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Jiangsu
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Nanjing、Jiangsu、中国、210009
- Zhongda Hospital Southeast University
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コンタクト:
- Chao Sun
- 電話番号:+86-13813966939
- メール:fertility@126.com
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-
参加基準
適格基準
適格基準
就学可能な年齢
- 大人
- 高齢者
健康ボランティアの受け入れ
サンプリング方法
調査対象母集団
説明
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.
研究計画
研究はどのように設計されていますか?
デザインの詳細
グループ/コホートの数
コホートと介入
グループ/コホートグループ/コホート |
介入・治療介入・治療 |
|---|---|
|
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.
|
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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この研究は何を測定していますか?
主要な結果の測定
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Measurement Accuracy of Peak Rigidity
時間枠: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
時間枠: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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二次結果の測定
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Clinical Diagnosis Agreement Rate
時間枠: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
時間枠: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
時間枠: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
時間枠: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)
時間枠: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
時間枠: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
時間枠: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
時間枠: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
時間枠: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
時間枠: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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協力者と研究者
捜査官
捜査官
- スタディチェア:Bin Xu、Zhongda hospital
研究記録日
主要日程の研究
研究開始 (推定)
研究開始
一次修了 (推定)
一次修了
研究の完了 (推定)
研究の完了
試験登録日
最初に提出
最初に提出
QC基準を満たした最初の提出物
QC基準を満たした最初の提出物
最初の投稿 (実際)
最初の投稿
学習記録の更新
投稿された最後の更新 (実際)
投稿された最後の更新
QC基準を満たした最後の更新が送信されました
QC基準を満たした最後の更新が送信されました
最終確認日
最終確認日
詳しくは
本研究に関する用語
その他の研究ID番号
その他の研究ID番号
- 2026ZDSYLL244-P01
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個々の参加者データ (IPD) を共有する予定はありますか?
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