ISRCTN ISRCTN39889125
DOI https://doi.org/10.1186/ISRCTN39889125
Secondary identifying numbers 3783
Submission date
28/05/2010
Registration date
28/05/2010
Last edited
02/04/2020
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Nervous System Diseases
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Not provided at time of registration

Contact information

Ms Emer Brady
Scientific

Leicester Royal Infirmary
Infirmary Square
Leicester
LE1 5WW
United Kingdom

Email abc@email.com

Study information

Study designSingle centre non-randomised interventional diagnosis, process of care and treatment trial
Primary study designInterventional
Secondary study designNon randomised controlled trial
Study setting(s)Hospital
Study typeTreatment
Scientific titleLeicester Sleep and Sugar Study
Study acronymDRN074 (Leicester Sleep and Sugar Study)
Study objectivesObstructive sleep apnoea (OSA) is a significant medical problem that affects approximately 4% of middle aged males and approximately 2% of adult females. Previous studies have highlighted the association between OSA and obesity, hypertension, insulin resistance and dyslipidemia, a cluster similar to that seen in the metabolic syndrome (MetS). The MetS itself is a significant risk factor for the development of type 2 diabetes (T2DM), cardiovascular disease (CVD) and cardiovascular mortality.

Sub-clinical systemic inflammation has been consistently observed in patients with T2DM and in those with the MetS. A number of inflammatory mediators, e.g., tumour necrosis factor-alpha (TNF-a), interleukin-6 (IL-6) have shown to be positively correlated with glucose intolerance and sleep deprivation. The association between inflammation and the pathogenesis of diseases such as T2DM, CVD and OSA is currently a pivotal area of research today.

The aim of this pilot study is to further establish the association between inflammatory mediators and poor sleep quality in a multiethnic population. In addition to investigating the positive effect that restoration of sleep has on glycemic control and inflammatory biomarkers that are associated with T2DM, CVD and MetS through continuous positive airway pressure (CPAP) therapy.
Ethics approval(s)MREC approved (ref: 06/Q2501/97)
Health condition(s) or problem(s) studiedTopic: Diabetes Research Network; Subtopic: Type 2; Disease: Cardiovascular disease, Multiple complications
InterventionTo measure the effect that sleep restoration (via CPAP) has on glucose tolerance and inflammation based on change in HBA1c levels and change in the level of recognised inflammatory biomarkers.
Intervention typeOther
Primary outcome measureParticipant HBA1c levels
Secondary outcome measures1. Participant plasma levels of recognised inflammatory biomarkers
2. Participant compliance with CPAP
3. Participant Epworth Sleepiness Scale (ESS), Hospital Anxiety and Depression Scale (HADS) and Quality of Life (QoL) scores
4. Participant glycaemic control via capillary blood glucose monitoring (CBGM) results
5. Participant insulin sensitivity via homeostasis model assessment–insulin resistance (HOMA-IR) analysis
Overall study start date29/11/2006
Completion date18/04/2008

Eligibility

Participant type(s)Patient
Age groupNot Specified
SexNot Specified
Target number of participantsPlanned sample size: 50; UK sample size: 50
Key inclusion criteria1. Body mass index (BMI) greater than or equal to 35 kg/m^2
2. Established type 2 diabetes (greater than 3 months)
3. Undiagnosed obstructive sleep apnoea
Key exclusion criteria1. BMI less than 35 kg/m^2
2. Diagnosed with type 2 diabetes within last 3 months
3. Diagnosis of obstructive sleep apnoea
Date of first enrolment29/11/2006
Date of final enrolment18/04/2008

Locations

Countries of recruitment

  • England
  • United Kingdom

Study participating centre

Leicester Royal Infirmary
Leicester
LE1 5WW
United Kingdom

Sponsor information

University Hospitals of Leicester NHS Trust (UK)
Hospital/treatment centre

Leicester Royal Infirmary
Infirmary Square
Leicester
LE1 5WW
England
United Kingdom

Website http://www.uhl-tr.nhs.uk/
ROR logo "ROR" https://ror.org/02fha3693

Funders

Funder type

Research council

Biotechnology and Biological Science Research Council (BBSRC) (UK) (ref: PJMRM62078)

No information available

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing plan

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article results in PhD thesis at 02/04/2020 Yes No

Editorial Notes

02/04/2020: Publication reference added.
31/03/2020: No publications found, verifying study status with principal investigator.