ClinicalTrials.gg
RecruitingNCT05978505RENTOSAUpdated Oct 3, 2024

Reboxetine for Sleep Apnoea After ENT Surgery

A Phase 2 interventional study of Reboxetine 4 MG Oral Tablet and Placebo in Sleep Apnea, Obstructive, sponsored by Flinders University. Recruiting at 1 site in Australia. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-10-03.

Sponsored by Flinders University · Phase 2, Interventional, and Other

From the registry’s dates

  • Primary completion was expected by Jul 2025, 1 year 4 months ago, but the record still lists the study as recruiting.
  • Started Aug 2023; still recruiting 3 years 3 months later.
Phase
Phase 2
Study type
Interventional
Enrollment
20
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

This pilot study will establish the feasibility of a larger trial to investigate whether reboxetine, a medication used to treat depression, can reduce the severity of obstructive sleep apnea (OSA) including increased blood oxygenation in post-surgical OSA patients where positive airway pressure (CPAP) therapy is either frequently poorly tolerated or not an option immediately post surgery. In this randomized, placebo-controlled, double-blind study, participants will use at-home sleep monitoring equipment before and after surgery plus measures of oxygenation. They will be prescribed either reboxetine or a placebo for seven days after surgery and complete questionnaires at the beginning and end of the study.

02

Conditions studied

  • Sleep Apnea, Obstructive

Keywords

  • sleep apnea, obstructive
  • upper airway surgery
  • ENT surgery
  • reboxetine
  • noradrenaline reuptake inhibitor
  • randomised
  • feasibility
  • placebo
  • double-blind
03

In context

Sleep Apnea, Obstructive

2,240 studies on the registry are indexed under Sleep Apnea, Obstructive; 475 are open to participants now.

This study's planned enrollment of 20 is below the median of 52 across 1,472 interventional studies indexed under Sleep Apnea, Obstructive.

Browse Sleep Apnea, Obstructive studies →

Lead sponsor

Flinders University is the lead sponsor of 13 studies on the registry; 3 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Age >18 years
  • Undergoing elective upper airway surgery
  • History of obstructive sleep apnoea (OSA)

Exclusion criteria

Exclusion Criteria:

  • cardiac disease (e.g., arrhythmia, coronary artery disease, or cardiac failure)
  • History of clinically significant urinary retention, bladder outlet obstruction, or benign prostatic hyperplasia
  • Poorly controlled hypertension
  • Epilepsy
  • History of schizophrenia, schizoaffective disorder or bipolar disorder according to -V or International Classification of Disease 10th edition criteria
  • History of attempted suicide or suicidal ideation within 1 year prior to screening, or current suicidal ideation
  • Narrow angle glaucoma
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

DSM diagnostic criteria

The American Psychiatric Association’s manual of mental health diagnoses. DSM-5 (2013, revised as DSM-5-TR in 2022) replaced DSM-IV, and some studies still name the older edition. “Meets DSM criteria for …” means diagnosed by that edition’s diagnostic criteria, usually by a clinician in an interview.

05

Study design

Phase
Phase 2
Primary purpose
Other
Allocation
Randomized
Intervention model
Crossover assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
20 participants (estimated)

Study arms

  • Experimental
    Reboxetine

    7-day course of 4mg reboxetine, taken nightly before bed time. Reboxetine will be taken for 7-nights post-surgery.

    Drug: Reboxetine 4 MG Oral Tablet

  • Placebo comparator
    Placebo

    Placebo sugar pill in the form of one capsule, taken before bedtime. Dosage is taken for 7 nights post-surgery.

    Drug: Placebo

Interventions

  • 7 nightly doses (4mg) to commence after surgery.

    Also known as: Edronax

  • DrugPlacebo

    7 nightly doses to commence after surgery.

    Also known as: Sugar pill

06

What researchers measure

Primary outcomes

  1. Treatment protocol adherence

    The percentage of total doses of the study drug (reboxetine or placebo) that were taken versus prescribed (assessed via pill counts) for this feasibility study.

    Time frame: 7 days

  2. Data capture efficiency

    The percentage of successful data collection nights versus missed nights of at-home oximetry for this feasibility study.

    Time frame: 14 days

Secondary outcomes

  1. Oxygen desaturation index (ODI)

    Number of times per hour that a participant has a drop in blood oxygen levels during sleep

    Time frame: 14 days

  2. nadir SpO2

    The lowest oxygen saturation value the patient drops to in a night.

    Time frame: 14 days

  3. Time spent below 90% SpO2

    The total amount of time per night for which oxygen saturation falls below 90%.

    Time frame: 14 days

  4. mean SpO2

    Average nightly oxygen level

    Time frame: 14 days

  5. Sleep duration

    Total amount of time spent asleep per night, sleep tracking performed using an under mattress sensor device.

    Time frame: 14 days

  6. Sleep efficiency (%)

    The estimated percentage of time in bed spent asleep performed using an under mattress sensor device.

    Time frame: 14 days

  7. Daytime sleepiness

    Measured via Karolinska Sleepiness Scale Questionnaire (9 point scale where 1 = extremely alert and 9 = extremely sleepy - fighting sleep)

    Time frame: 14 days

  8. Perceived sleep quality measured via the Leeds Sleep Evaluation Questionnaire

    This questionnaire asks participants to rate their perceived sleep across 4 domains on a visual analog scale as follows: 1) getting to sleep, 2) quality of sleep, 3) Awake following sleep, 4) Behavior following wakening. Higher scores indicate better perceived sleep.

    Time frame: 14 days

  9. Insomnia Severity Score

    A patient-reported measure of insomnia symptoms using the Insomnia Severity Index- A 28 point scale where 0 indicates no clinically significant insomnia and 28 indicates maximally severe clinical insomnia.

    Time frame: 14 days

  10. Apnoea-hypopnea hndex (AHI)

    Change in OSA severity (AHI estimated via the Withings under mattress sensor number of events/hour) between placebo and reboxetine

    Time frame: 14 days

  11. Study enrolment rate

    The number of referred patients successfully enrolled into this feasibility study

    Time frame: 12 months

Other outcomes

  1. Reboxetine-related side effects

    Documented via adverse-event forms.

    Time frame: 14 days

07

Study locations

1 of 1 sites recruiting
  • Flinders, Private and Public Hospitals and Flinders University
    Bedford Park, South Australia 5042, Australia
    Recruiting
08

References and documents

Publications

  • Opperer M, Cozowicz C, Bugada D, Mokhlesi B, Kaw R, Auckley D, Chung F, Memtsoudis SG. Does Obstructive Sleep Apnea Influence Perioperative Outcome? A Qualitative Systematic Review for the Society of Anesthesia and Sleep Medicine Task Force on Preoperative Preparation of Patients with Sleep-Disordered Breathing. Anesth Analg. 2016 May;122(5):1321-34. doi: 10.1213/ANE.0000000000001178. PubMed 27101493 ↗
  • Chan MTV, Wang CY, Seet E, Tam S, Lai HY, Chew EFF, Wu WKK, Cheng BCP, Lam CKM, Short TG, Hui DSC, Chung F; Postoperative Vascular Complications in Unrecognized Obstructive Sleep Apnea (POSA) Study Investigators. Association of Unrecognized Obstructive Sleep Apnea With Postoperative Cardiovascular Events in Patients Undergoing Major Noncardiac Surgery. JAMA. 2019 May 14;321(18):1788-1798. doi: 10.1001/jama.2019.4783. PubMed 31087023 ↗
  • Khanna AK, Bergese SD, Jungquist CR, Morimatsu H, Uezono S, Lee S, Ti LK, Urman RD, McIntyre R Jr, Tornero C, Dahan A, Saager L, Weingarten TN, Wittmann M, Auckley D, Brazzi L, Le Guen M, Soto R, Schramm F, Ayad S, Kaw R, Di Stefano P, Sessler DI, Uribe A, Moll V, Dempsey SJ, Buhre W, Overdyk FJ; PRediction of Opioid-induced respiratory Depression In patients monitored by capnoGraphY (PRODIGY) Group Collaborators. Prediction of Opioid-Induced Respiratory Depression on Inpatient Wards Using Continuous Capnography and Oximetry: An International Prospective, Observational Trial. Anesth Analg. 2020 Oct;131(4):1012-1024. doi: 10.1213/ANE.0000000000004788. PubMed 32925318 ↗
  • Altree TJ, Eckert DJ. Obstructive sleep apnea endotypes and their postoperative relevance. Int Anesthesiol Clin. 2022 Apr 1;60(2):1-7. doi: 10.1097/AIA.0000000000000357. No abstract available. PubMed 35125480 ↗
  • Chung F, Liao P, Yegneswaran B, Shapiro CM, Kang W. Postoperative changes in sleep-disordered breathing and sleep architecture in patients with obstructive sleep apnea. Anesthesiology. 2014 Feb;120(2):287-98. doi: 10.1097/ALN.0000000000000040. PubMed 24158049 ↗
  • Chung F, Memtsoudis SG, Ramachandran SK, Nagappa M, Opperer M, Cozowicz C, Patrawala S, Lam D, Kumar A, Joshi GP, Fleetham J, Ayas N, Collop N, Doufas AG, Eikermann M, Englesakis M, Gali B, Gay P, Hernandez AV, Kaw R, Kezirian EJ, Malhotra A, Mokhlesi B, Parthasarathy S, Stierer T, Wappler F, Hillman DR, Auckley D. Society of Anesthesia and Sleep Medicine Guidelines on Preoperative Screening and Assessment of Adult Patients With Obstructive Sleep Apnea. Anesth Analg. 2016 Aug;123(2):452-73. doi: 10.1213/ANE.0000000000001416. PubMed 27442772 ↗
  • Liao P, Luo Q, Elsaid H, Kang W, Shapiro CM, Chung F. Perioperative auto-titrated continuous positive airway pressure treatment in surgical patients with obstructive sleep apnea: a randomized controlled trial. Anesthesiology. 2013 Oct;119(4):837-47. doi: 10.1097/ALN.0b013e318297d89a. Erratum In: Anesthesiology. 2014 May;120(5):1302. Anesthesiology. 2014 May;120(5):1302. doi: 10.1097/ALN.0000446879.21458.99. PubMed 24195872 ↗
  • Altree TJ, Chung F, Chan MTV, Eckert DJ. Vulnerability to Postoperative Complications in Obstructive Sleep Apnea: Importance of Phenotypes. Anesth Analg. 2021 May 1;132(5):1328-1337. doi: 10.1213/ANE.0000000000005390. PubMed 33857975 ↗
  • Reilly EK, Boon MS, Vimawala S, Chitguppi C, Patel J, Murphy K, Doghramji K, Nyquist GG, Rosen MR, Rabinowitz MR, Huntley CT. Tolerance of Continuous Positive Airway Pressure After Sinonasal Surgery. Laryngoscope. 2021 Mar;131(3):E1013-E1018. doi: 10.1002/lary.28968. Epub 2020 Sep 16. PubMed 32936959 ↗
  • Perger E, Taranto Montemurro L, Rosa D, Vicini S, Marconi M, Zanotti L, Meriggi P, Azarbarzin A, Sands SA, Wellman A, Lombardi C, Parati G. Reboxetine Plus Oxybutynin for OSA Treatment: A 1-Week, Randomized, Placebo-Controlled, Double-Blind Crossover Trial. Chest. 2022 Jan;161(1):237-247. doi: 10.1016/j.chest.2021.08.080. Epub 2021 Sep 20. PubMed 34543665 ↗
  • Taranto-Montemurro L, Messineo L, Sands SA, Azarbarzin A, Marques M, Edwards BA, Eckert DJ, White DP, Wellman A. The Combination of Atomoxetine and Oxybutynin Greatly Reduces Obstructive Sleep Apnea Severity. A Randomized, Placebo-controlled, Double-Blind Crossover Trial. Am J Respir Crit Care Med. 2019 May 15;199(10):1267-1276. doi: 10.1164/rccm.201808-1493OC. PubMed 30395486 ↗
  • Lim R, Messineo L, Grunstein RR, Carberry JC, Eckert DJ. The noradrenergic agent reboxetine plus the antimuscarinic hyoscine butylbromide reduces sleep apnoea severity: a double-blind, placebo-controlled, randomised crossover trial. J Physiol. 2021 Sep;599(17):4183-4195. doi: 10.1113/JP281912. Epub 2021 Jul 14. PubMed 34174090 ↗

Individual participant data

Plan to share: Yes — Participants will be informed in plain language through the consent form that their deidentified data may be made available to other researchers. Deidentified participant data will only be shared with other researchers upon request to the chief investigator after study publication and subject to ethical approval

Supporting information: Study protocol, Informed consent form

Time frame: At conclusion of the study and any related publications

Access criteria: IPD may be shared for research purposes on application to the chief investigator and subject to applicable ethical review.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 3, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05978505
Lead sponsor
Flinders University
Collaborators
Flinders Medical Centre
Responsible party
Professor Danny Eckert (Director, Adelaide Institute for Sleep Health, Flinders University) — Principal investigator
First posted
Aug 7, 2023
Start date
Aug 10, 2023
Primary completion
Jul 2025 (estimated)
Completion
Jul 2025 (estimated)
Last update
Oct 3, 2024

Study contacts

Emma Thomas
Contact
ethomas@flinders.edu.au
+61882012912
Carolin Tran
Contact
carolin.tran@flinders.edu.au
+61874219873
Danny J. Eckert, PhD
principal investigator · Flinders University

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drug tested here: Reboxetine

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