TCTR20150204001.

Trial name or title	Innovation of positional therapy belt and its effectiveness as a treatment modality for positional sleep apnoea
Methods	Interventional
Participants	Inclusion criteria People with POSA Aged 18‐80 years Recently diagnosed within 1 year of enrolment Not currently receiving treatment Male or female Positional Sleep Apnea is defined by supine RDI/non‐supine RDI ≥ 2 with overall RDI ≥ 5 Exclusion criteria: Receiving treatment for OSA including CPAP, upper airway surgery, or oral appliance Pregnant Morbid obesity (BMI > 35) Not able to read or write in Thai Age: 18‐80 yrs
Interventions	Position therapy belt
Outcomes	Primary: RDI Secondary: AHI, supine time, sleep apnoea related symptoms
Starting date	1 March 2015
Contact information	narichac@hotmail.com Dr. Naricha Chirukalwasan, Phayatai plaza, Bangkok, Thailand
Notes	Contacted on 26 January 2017, study not finalised yet

AHI: Apnoea‐Hypopnoea Index; CPAP: continuous positive airway pressure; ESS: Epworth Sleepiness Scale; FOSQ: Functional Outcome of Sleep Questionnaire; OSA: obstructive sleep apnoea; PAP: positive airway pressure; POSA: positional obstructive sleep apnoea; SF‐36: Short Form 36 health survey; SPT: sleep position trainer