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
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljeret beskrivelse
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.
Undersøgelsestype
Undersøgelsestype
Tilmelding (Anslået)
Tilmelding
Kontakter og lokationer
Studiekontakt
Studiekontakt
- Navn: Chao Sun
- Telefonnummer: +86 13813966939
- E-mail: fertility@126.com
Studiesteder
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Jiangsu
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Nanjing, Jiangsu, Kina, 210009
- Zhongda Hospital Southeast University
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Kontakt:
- Chao Sun
- Telefonnummer: +86-13813966939
- E-mail: fertility@126.com
-
-
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
- Voksen
- Ældre voksen
Tager imod sunde frivillige
Prøveudtagningsmetode
Studiebefolkning
Beskrivelse
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.
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Antal grupper/kohorter
Kohorter og interventioner
Gruppe / kohorteGruppe / kohorte |
Intervention / BehandlingIntervention / Behandling |
|---|---|
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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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Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Measurement Accuracy of Peak Rigidity
Tidsramme: 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
Tidsramme: 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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Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Clinical Diagnosis Agreement Rate
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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)
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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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Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Efterforskere
Efterforskere
- Studiestol: Bin Xu, Zhongda hospital
Datoer for undersøgelser
Studer store datoer
Studiestart (Anslået)
Studiestart
Primær færdiggørelse (Anslået)
Primær færdiggørelse
Studieafslutning (Anslået)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- 2026ZDSYLL244-P01
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
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