Trial reportChest2020
Effects of the Combination of Atomoxetine and Oxybutynin on OSA Endotypic Traits.
Trial report in Chest, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 67 papers, 3 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
67 citing papers in PubMed, 3 syntheses or guidelines pooled it, 119 citations in OpenAlex.
- Are noradrenergics combined with antimuscarinics the future pharmacologic treatment for obstructive sleep apnea? A systematic review and meta-analysis of randomized controlled trials.Sleep & breathing = Schlaf & Atmung · 2024Pooled it
- Effect of norepinephrine reuptake inhibitors combined with antimuscarinic agents vs monotherapy for OSA: a systematic review and meta-analysis.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2024Pooled it
- Pharmacological treatment for obstructive sleep apnea: A systematic review and meta-analysis.Clinics (Sao Paulo, Brazil) · 2024Pooled it
- Aroxybutynin and atomoxetine (AD109) for obstructive sleep apnea: a randomized phase 3 trial (SynAIRgy).American journal of respiratory and critical care medicine · 2026Trial
- Atomoxetine plus oxybutynin for symptomatic snoring and airflow limitation in individuals without moderate-to-severe obstructive sleep apnea.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2025Trial
- Effect of viloxazine and trazodone in obstructive sleep apnoea: a randomised, placebo-controlled, cross-over study.Thorax · 2025Trial
- Effects of the Combination of Pimavanserin and Atomoxetine on OSA Severity: A Randomized Crossover Trial.Chest · 2025Trial
- Combination Drug Therapy with Acetazolamide, Eszopiclone ± Venlafaxine for Obstructive Sleep Apnea (RESCUE-Combo): A Randomized, Double-Blind, Placebo-controlled Clinical Trial.Annals of the American Thoracic Society · 2025Trial
- The Combination of Aroxybutynin and Atomoxetine in the Treatment of Obstructive Sleep Apnea (MARIPOSA): A Randomized Controlled Trial.American journal of respiratory and critical care medicine · 2023Trial
- Efficacy of atomoxetine plus oxybutynin in the treatment of obstructive sleep apnea with moderate pharyngeal collapsibility.Sleep & breathing = Schlaf & Atmung · 2023Trial
- The norepinephrine reuptake inhibitor reboxetine alone reduces obstructive sleep apnea severity: a double-blind, placebo-controlled, randomized crossover trial.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2023Trial
- Effect of Pimavanserin on the Respiratory Arousal Threshold from Sleep: A Randomized Trial.Annals of the American Thoracic Society · 2022Trial
- Combination of atomoxetine with the novel antimuscarinic aroxybutynin improves mild to moderate OSA.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2022Trial
- Atomoxetine and fesoterodine combination improves obstructive sleep apnoea severity in patients with milder upper airway collapsibility.Respirology (Carlton, Vic.) · 2022Trial
- A single dose of noradrenergic/serotonergic reuptake inhibitors combined with an antimuscarinic does not improve obstructive sleep apnoea severity.Physiological reports · 2022Trial
- Trial
- Different antimuscarinics when combined with atomoxetine have differential effects on obstructive sleep apnea severity.Journal of applied physiology (Bethesda, Md. : 1985) · 2021Trial
- Pharmacotherapy in obstructive sleep apnoea: a clinical guide.Sleep & breathing = Schlaf & Atmung · 2026Review
- Review
- Targeting Hypoglossal Neurobiology in the Treatment of Obstructive Sleep Apnea: The Emergence of Aroxybutynin-Atomoxetine (AD109).Brain sciences · 2026Article
7 more citing papers are in PubMed but not listed here.
Corrections and comments
- Commented on by
- Commented on byResponse.2021
Authors and funding
9 authors at 4 institutions in 3 countries.
Funding
Abstract
backgroundWe recently showed that administration of the combination of the noradrenergic drug atomoxetine plus the antimuscarinic oxybutynin (ato-oxy) prior to sleep greatly reduced OSA severity, likely by increasing upper airway dilator muscle activity during sleep. In patients with OSA who performed the ato-oxy trial with an esophageal pressure catheter to estimate ventilatory drive, the effect of the drug combination (n = 17) and of the single drugs (n = 6) was measured on the endotypic traits over a 1-night administration and compared vs placebo. This study also tested if specific traits were predictors of complete response to treatment (reduction in apnea-hypopnea index [AHI] > 50% and < 10 events/h).
methodsThe study was a double-blind, randomized, placebo-controlled trial. The arousal threshold, collapsibility (ventilation at eupneic drive [Vpassive]), ventilation at arousal threshold, and loop gain (stability of ventilatory control, LG1), were calculated during spontaneous breathing during sleep. Muscle compensation (upper airway response) was calculated as a function of ventilation at arousal threshold adjusted for Vpassive. Ventilation was expressed as a percentage of the eupneic level of ventilation (%
resultsCompared with placebo, ato-oxy increased Vpassive by 73 [54 to 91]%
findingsAto-oxy markedly improved the measures of upper airway collapsibility, increased breathing stability, and slightly reduced the arousal threshold. Patients with relatively lower AHI and less severe upper airway collapsibility had the best chance for OSA resolution with ato-oxy.
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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.