NCT03995836

Brief Summary

This study evaluates epigenetics in morbid obese patients who are waiting for bariatric surgery. A home cardiopulmonary polygraphy is performed to evaluate for the presence of sleep-disordered breathing. The principal investigator make the decision of starting CPAP among patients with obstructive sleep apnea according to current clinical guidelines. One year follow up after bariatric surgery will be performed. A total of 5 visits will be scheduled: two of them before bariatric surgery and 3 after (3, 6 and 12 months). At every visit, all patients had: sleep questionaries, blood samples, EKG-Holter and spirometry are collected.

Trial Health

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
70

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Jul 2014

Longer than P75 for all trials

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

July 1, 2014

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2016

Completed
2 years until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2018

Completed
11 months until next milestone

First Submitted

Initial submission to the registry

May 13, 2019

Completed
1 month until next milestone

First Posted

Study publicly available on registry

June 24, 2019

Completed
Last Updated

June 24, 2019

Status Verified

June 1, 2019

Enrollment Period

2 years

First QC Date

May 13, 2019

Last Update Submit

June 20, 2019

Conditions

Keywords

Obstructive Sleep ApneaMorbid ObesityEpigeneticsBariatric Surgery

Outcome Measures

Primary Outcomes (1)

  • Epigenetics changes in morbid obesity patient with or without obstructive sleep apnea (OSA)

    To evaluate differences in miRNA profile among patients with morbid obesity with or without OSA Differences between exosome miRNA of MO+OSA and MO-OSA will be calculated. The results will be expressed following the method 2(delta-delta C(T)) miRNA will be analyzed: miRNA 16, 21, 34, 126, 133, 145, 146, 155, 223, 320.

    2 years

Secondary Outcomes (2)

  • Impact of CPAP treatment in epigenetics changes.

    6 months

  • Impact of weight loss due to bariatric surgery in epigenetics changes.

    12 months

Study Arms (2)

Obstructive Sleep Apnea

Device: CPAPProcedure: Bariatric Surgery

Non Obstructive Sleep Apnea

Procedure: Bariatric Surgery

Interventions

CPAPDEVICE

Decision of CPAP treatment is according to clinical guidelines

Obstructive Sleep Apnea

All patients.

Non Obstructive Sleep ApneaObstructive Sleep Apnea

Eligibility Criteria

Age18 Years - 60 Years
Sexall
Age GroupsAdult (18-64)
Sampling MethodNon-Probability Sample
Study Population

Bariatric surgery waiting list in Royo Villanova Hospital

You may qualify if:

  • BMI consistently \> 40 kg/m2 for 3-5 years, following more than 1 year of unsuccessful controlled medical treatment
  • BMI 35-40 kg/m2 with comorbidities associated with morbid obesity (MO) susceptible to improvement with weight loss (high BP, Diabetes, dyslipidemia, OSA, etc.), following more than 1 year of unsuccessful controlled medical treatment.
  • A signed informed consent form

You may not qualify if:

  • Obesity hypoventilation syndrome or treatment with positive pressure devices.
  • Diagnosis of systemic inflammatory disease.
  • Neoplastic diseases in the last 5 years.
  • A cardiovascular event in the last 6 months.
  • Pregnancy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (2)

  • Lazaro J, Sanz-Rubio D, Claveria P, Cabrejas C, Fernando J, Castanera A, Marin JM. Effect of positive pressure ventilation and bariatric surgery on extracellular vesicle microRNAs in patients with severe obesity and obstructive sleep apnea. Int J Obes (Lond). 2023 Jan;47(1):24-32. doi: 10.1038/s41366-022-01230-z. Epub 2022 Oct 25.

  • Lazaro J, Claveria P, Cabrejas C, Fernando J, Daga B, Ordonez B, Segura S, Sanz-Rubio D, Marin JM. Epigenetics dysfunction in morbid obesity with or without obstructive sleep apnoea: the EPIMOOSA study. Respir Res. 2020 Feb 4;21(1):42. doi: 10.1186/s12931-020-1302-9.

Biospecimen

Retention: SAMPLES WITH DNA

Blood samples

MeSH Terms

Conditions

Sleep Apnea, ObstructiveObesity, Morbid

Interventions

Bariatric Surgery

Condition Hierarchy (Ancestors)

Sleep Apnea SyndromesApneaRespiration DisordersRespiratory Tract DiseasesSleep Disorders, IntrinsicDyssomniasSleep Wake DisordersNervous System DiseasesObesityOverweightOvernutritionNutrition DisordersNutritional and Metabolic DiseasesBody WeightSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

BariatricsObesity ManagementTherapeuticsSurgical Procedures, Operative

Study Officials

  • JAVIER LAZARO SIERRA, MD

    Hospital Royo Villanova

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 13, 2019

First Posted

June 24, 2019

Study Start

July 1, 2014

Primary Completion

July 1, 2016

Study Completion

July 1, 2018

Last Updated

June 24, 2019

Record last verified: 2019-06