CClinicalTrials.gg
Status unknownNCT02403141ADSAUpdated Mar 3, 2017

Abu Dhabi Sleep Apnea (ADSA) Study

An observational study in Sleep Apnoea, sponsored by Imperial College London Diabetes Centre. Status unknown at 1 site in United Arab Emirates. Open to participants aged 18 Years to 64 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2017-03-03.

Sponsored by Imperial College London Diabetes Centre · Observational

The sponsor has not verified this record recently (last verified Mar 2017), so the status shown — last known as Active, not recruiting — may be out of date.
Study type
Observational
Model
Other
Time perspective
Prospective
Enrollment
1,400
Ages
18 Years to 64 Years
Sex
All
01

Study summary

Obstructive sleep apnoea (OSA) is a common medical problem which, despite increasing awareness, remains under-diagnosed. There is a close association between OSA and obesity; 60-70% of patients diagnosed with OSA are either obese or overweight [1]. OSA is also very common among patients with type 2 diabetes. Type 2 Diabetes Mellitus (T2DM) has reached epidemic status in the Gulf region. OSA worsens insulin resistance and leads to weight gain through sleep disturbance [2]. Several mechanisms have been proposed for the associations of OSA with diabetes and obesity [3]. At present there is little available information regarding the prevalence of OSA in the UAE, the relationship with T2DM and obesity, and the impact of OSA on health outcomes in the Emirati population. This research will explore these relationships and inform public health decisions regarding diagnostic pathways, service provision and treatment protocols.

02

Conditions studied

  • Sleep Apnoea
03

In context

Apnea

1,422 studies on the registry are indexed under Apnea; 159 are open to participants now.

This study's planned enrollment of 1,400 is above the median of 106 across 386 observational studies indexed under Apnea.

Browse Apnea studies →

Lead sponsor

Imperial College London Diabetes Centre is the lead sponsor of 13 studies on the registry; none are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 64 Years
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

Patients over the age of 18 attending ICLDC will be offered the option of taking part in the study. Those agreeing to participate will be asked to fill in a questionnaire.

Inclusion criteria

Participants aged between 18-64 years old. Both Gender male and female.

Exclusion criteria

Exclusion Criteria:

Paediatrics below the age of 18. Any participant who is unable to take part

05

Study design

Observational model
Other
Time perspective
Prospective
Enrollment
1,400 participants (estimated)
Patient registry
No

Groups and cohorts

  • Normal glucose tolerance

    Patients with normal fasting glucose. Blood glucose less than 5.6mmol/L

    Other: Questionnaire

  • Impaired fasting glycaemia

    Patients with blood glucose between 5.6mmol/L - 7mmol/L

    Other: Questionnaire

  • Type 2 diabetes

    Patients with blood glucose higher than 7mmol/L and negative IA2 and GAD antibodies.

    Other: Questionnaire

  • Type 1 diabetes

    Patients on insulin and with positive IA2 and/or GAD antibodies.

    Other: Questionnaire

Interventions

  • OtherQuestionnaire
06

What researchers measure

Primary outcomes

  1. Primary objective (Establishing the prevalence of OSA in the study population.)

    Establishing the prevalence of OSA in the study population.

    Time frame: 3 months

07

Study locations

1 site
  • Imperial College London Diabetes Centre
    Abu Dhabi, P.O Box 48338, United Arab Emirates
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 3, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT02403141
Lead sponsor
Imperial College London Diabetes Centre
Responsible party
Dr Nader Lessan, MD (Consultant Endocrinologist, Imperial College London Diabetes Centre) — Principal investigator
First posted
Mar 31, 2015
Start date
Mar 2015
Primary completion
Mar 2017 (estimated)
Completion
Mar 2017 (estimated)
Last update
Mar 3, 2017
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Mar 2017. You cannot join it, but the record below documents what was studied.

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