Trial reportThe Journal of clinical endocrinology and metabolism2018
Randomized Trial of CPAP and Vardenafil on Erectile and Arterial Function in Men With Obstructive Sleep Apnea and Erectile Dysfunction.
Trial report in The Journal of clinical endocrinology and metabolism, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 2 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
25 citing papers in PubMed, 2 syntheses or guidelines pooled it, 47 citations in OpenAlex.
- Effectiveness of continuous positive airway pressure therapy on romantic relationships and intimacy among individuals with obstructive sleep apnea: A systematic review and a meta-analysis.Journal of sleep research · 2025Pooled it
- Non-invasive positive airway pressure therapy for improving erectile dysfunction in men with obstructive sleep apnoea.The Cochrane database of systematic reviews · 2021Pooled it
- The impact of obesity and obstructive sleep apnea on vascular hemodynamics in men under 40: a 15-year retrospective cohort study.Sexual medicine · 2026Article
- Cognitive-emotional associations between non-restorative sleep and erectile dysfunction: the role of rumination profiles and resilience.Sexual medicine · 2026Article
- The association between obstructive sleep apnoea and erectile dysfunction: a systematic review and meta-analysis.International journal of impotence research · 2026Review
- Association between obstructive sleep apnea and male sexual dysfunction: a prospective cohort study based on 155,688 participants from the UK Biobank.Scientific reports · 2026Article
- The role of sleep stages in the regulation of erectile function: impacts of REM sleep fragmentation.International journal of impotence research · 2026Review
- Article
- Approach the Patient With Obstructive Sleep Apnea and Obesity.The Journal of clinical endocrinology and metabolism · 2024Article
- Sleep disorders are associated with testosterone deficiency and erectile dysfunction-a U.S. claims database analysis.International journal of impotence research · 2024Article
- The multifaceted nature of diabetic erectile dysfunction: uncovering the intricate mechanisms and treatment strategies.Frontiers in endocrinology · 2024Review
- Global psychological assessment with the evaluation of life and sleep quality and sexual and cognitive function in a large number of patients with acromegaly: a cross-sectional study.European journal of endocrinology · 2022Article
- Article
- Prevalence and Characteristics of Erectile Dysfunction in Obstructive Sleep Apnea Patients.Frontiers in endocrinology · 2022Article
- Mental Health in Non-Oncologic Urology Patients.Health psychology research · 2022Article
- Short Sleep Duration and Erectile Dysfunction: A Review of the Literature.Nature and science of sleep · 2022Review
- Sleep and the Testis.Current opinion in endocrine and metabolic research · 2021Article
- Type 5 phosphodiesterase (PDE5) and the vascular tree: From embryogenesis to aging and disease.Mechanisms of ageing and development · 2020Review
- Article
- The effect of sleep on men's health.Translational andrology and urology · 2020Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
11 authors at 5 institutions in 2 countries.
Funding
Abstract
Context: Erectile function is important for life satisfaction and often impaired in men with obstructive sleep apnea (OSA). Uncontrolled studies show that treating OSA with continuous positive airway pressure (CPAP) improves erectile function. Phosphodiesterase type 5 inhibitors (e.g., vardenafil) are the first-line therapy for erectile dysfunction (ED), but may worsen OSA. Objective: To assess the effects of CPAP and vardenafil on ED. Design: Sixty-one men with moderate-to-severe OSA and ED were randomized to 12 weeks of CPAP or sham CPAP, and 10 mg daily vardenafil or placebo in a two-by-two factorial design. Main Outcome Measures: International Index of Erectile Function (primary end point), treatment and relationship satisfaction, sleep-related erections, sexual function, endothelial function, arterial stiffness, quality of life, and sleep-disordered breathing. Results: CPAP increased the frequency of sleep-related erections, overall sexual satisfaction, and arterial stiffness but did not change erectile function or treatment or relationship satisfaction. Vardenafil did not alter erectile function, endothelial function, arterial stiffness, or sleep-disordered breathing, but did improve overall self-esteem and relationship satisfaction, other aspects of sexual function, and treatment satisfaction. Adherent CPAP improved erectile function, sexual desire, overall sexual, self-esteem, relationship, and treatment satisfaction, as well as sleepiness, and quality of life. Adherent vardenafil use did not consistently change nocturnal erection quality. Conclusion: CPAP improves overall sexual satisfaction, sleep-related erections, and arterial stiffness. Low-dose daily vardenafil improves certain aspects of sexual function and did not worsen OSA. Adherent CPAP or vardenafil use further improves ED and quality of life.
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.