Predictors of Weight Loss and Metabolic Health After Bariatric Surgery

NCT ID: NCT05987631

Last Updated: 2023-08-14

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Total Enrollment

1200 participants

Study Classification

OBSERVATIONAL

Study Start Date

2023-01-19

Study Completion Date

2027-08-31

Brief Summary

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In this prospective study the investigators aim to identify preoperative predictors of improvement of metabolic health and weight loss after bariatric surgery focusing on inflammation, insulin sensitivity (in a subgroup of patients), glucoregulatory determinants, psychological traits, feeding behavior characteristics and cardiorespiratory fitness

Detailed Description

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Obesity is the result of a complex interplay between genetic and epigenetic predisposition, environment, physical activity, nutrition and psychology. It is a debilitating disorder and a risk factor for the development of metabolic disorders such as dyslipidaemia, hypertension and hyperglycaemia as well as certain cancers. Bariatric surgery has proven to be the most effective treatment for morbid obesity with established long-term results of weight loss, remission of comorbid conditions and the improvement of Quality of Life (QoL). However, variability in these results after bariatric surgery is well known. Identifying preoperative predictors of postoperative weight loss and metabolic health is of clinical priority. Predictors could help further improve the efficacy of care for obesity by tailoring treatment to the individual, based on their predicted response and therefore optimize outcome after bariatric surgery.

Conditions

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Obesity, Morbid Insulin Sensitivity Bariatric Surgery Candidate Feeding Behavior

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Eligibility Criteria

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Inclusion Criteria

* Ability to provide informed consent
* Patient is ≥ 18 and ≤ 75 years old
* BMI ≥ 40 kg/m2 or ≥ 35 kg/m2 with obesity related comorbidity
* Scheduled for primary bariatric procedure: Roux-en-Y gastric bypass (RYGB) or Sleeve Gastrectomy (SG)
* Stable weight 3 months prior to inclusion weight (\<10% change in body weight for 3 months prior to assessments)


* Ability to provide informed consent
* Patient is ≥ 18 and ≤ 75 years old
* BMI ≥ 40 kg/m2 or ≥ 35 kg/m2 with obesity related comorbidity
* Patients scheduled for RYGB
* Patients who are insulin resistant (impaired fasting glucose (\> 5.6 mmol/L) or fasting insulin \> 74 pmol/L)
* Postmenopausal women (to prevent bias due to the effect of sex hormones on insulin sensitivity)

Exclusion Criteria

* Any actual medical condition except for obesity related health issues or well treated hypothyroidism
* Pregnancy anticipated in the first two years following surgery

A potential subject who meet the following criteria will be excluded from participation in the subgroup of this study:

* Coagulation disorders and/or use anticoagulants
* Use of any medication except for statins, antihypertensives (except for Angiotensine converting enzyme (ACE)- or angiotensin receptor blockers) and thyroid hormone
* Diabetes mellitus type 2
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Obesitas Kliniek B.V.

UNKNOWN

Sponsor Role collaborator

Radboud University Medical Center

OTHER

Sponsor Role collaborator

Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)

OTHER

Sponsor Role lead

Responsible Party

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Prof. Dr. Mireille JM Serlie

Prof. Dr. Mireille JM Serlie

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Mireille JM Serlie, Prof. Dr.

Role: PRINCIPAL_INVESTIGATOR

Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)

Valerie M Monpellier, Dr.

Role: PRINCIPAL_INVESTIGATOR

Obesitas Nederland B.V.

Locations

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Nederlandse Obesitas Kliniek Gouda

Gouda, South Holland, Netherlands

Site Status NOT_YET_RECRUITING

Nederlandse Obesitas Kliniek Den Haag

The Hague, South Holland, Netherlands

Site Status RECRUITING

Nederlandse Obesitas Kliniek Nieuwegein

Nieuwegein, Utrecht, Netherlands

Site Status NOT_YET_RECRUITING

Countries

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Netherlands

Central Contacts

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Rieneke van der Meer, Drs.

Role: CONTACT

+31703204703

Lianda CH Luiijpers, Drs.

Role: CONTACT

Facility Contacts

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Rieneke van der Meer, Drs.

Role: primary

+31182232040

Rieneke van der Meer, Drs.

Role: primary

+31703204703

Lianda Luijpers, Drs.

Role: primary

Other Identifiers

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NL77692.018.21

Identifier Type: OTHER

Identifier Source: secondary_id

NTR9447

Identifier Type: REGISTRY

Identifier Source: secondary_id

2021_136

Identifier Type: -

Identifier Source: org_study_id

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