Bariatric Surgery, Hormones, and Quality of Life (OBLIV)

June 15, 2017 updated by: Rebecca Paul, Linkoeping University

Health-related Quality of Life, Sexuality and Hormone Status After Bariatric Surgery

The purpose of this study is to characterize the hormonal status in fertile women undergoing laparoscopic gastric bypass, pre- and postoperatively, and evaluate if there is a correlation between health-related quality of life and proposed hormone changes post-operatively.

Study Overview

Detailed Description

Sex hormone levels in women with obesity are altered in comparison to normal weight subjects. Most previous studies have focused on questionnaire surveys, and on the emotional/psychological aspect of health-related quality of life (HRQoL). It has been shown that bariatric surgery can affect reproductive ability, but the relationship between hormonal changes and HRQoL has been sparsely studied.

Hormone balance is affected by fat allocation, insulin levels and liver function, and these factors are all influenced postoperatively. Also body image and altered body mass composition can influence sexuality in diverse ways.

This leads us to theorize that liver production of SHBG will change after surgery and impact serum concentrations of sex hormones. Normalized levels of testosterone and estrogen may lead to reduced symptoms of hyperandrogenism, restitution of normal menstrual cycles and changes in sexual functioning.

The focus of this study is to analyze sexual and health-related quality of life through questionnaire analyses, and to investigate levels of sex hormones pre- and postoperatively in women undergoing bariatric surgery. Results from questionnaire analyses and hormone data will be tested for possible correlations.

Study Type

Interventional

Enrollment (Actual)

68

Phase

  • Not Applicable

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 50 years (ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Description

Inclusion Criteria:

  • Premenpausal women
  • BMI >30
  • Undergoing laparoscopic gastric bypass surgery

Exclusion Criteria:

  • Smoking
  • Liver disease
  • Concomitant hormone treatment including all forms of hormone-based contraception

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: TREATMENT
  • Allocation: NA
  • Interventional Model: SINGLE_GROUP
  • Masking: NONE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
OTHER: Surgery
Participants will be operated using laparoscopic gastric bypass surgery.
Female participants with BMI >30, between age 18-50, will be operated with laparoscopic gastric bypass surgery by an experienced gastric bypass surgeon.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Sex-hormone levels
Time Frame: 1 year
Albumin, luteinizing hormone (LH), follicle stimulating hormone (FSH), sexual hormone binding globulin (SHBG), estradiol (E2), testosterone and progesterone were analyzed preoperatively, and one-year postoperatively.
1 year
Female sexual function
Time Frame: 1 year
A survey of sexual function, the Female Sexual Function Index (FSFI), measures five separate domains of female sexual function: desire/arousal, lubrication, orgasm, satisfaction, and pain. These are assessed as desire (range 1.2-6); arousal (range 0-6); lubrication (range 0-6); orgasm (range 0-6); satisfaction (range 0.8-6) and pain (range 0.6-6). The separate domain scores are summed to create a total score with range 2-36, where totals less than 26 indicate female sexual dysfunction.
1 year
Hormone-related quality of life
Time Frame: 1 year
The Women's Health Questionnaire (WHQ) was developed to assess hormonally-mediated changes that can occur during menopause, but also in other diseases that cause hormonal fluctuation. The following domains are covered by the questionnaire: depressed mood (6 items), somatic symptoms (7 items), anxiety/fears (4 items), vasomotor symptoms (2 items), sleep problems (3 items), sexual behavior (3 items), menstrual symptoms (4 items), memory/concentration (3 items) and attractiveness (3 items). The WHQ is scored by reducing the four point scales (yes definitely, yes sometimes, no not much, no not at all) to binary options (0/1) and the subscale items are summated and divided by the number of items in each subscale. The WHQ questionnaire scores range between zero and one. Zero reflects good health, and one, at the other end of the scale, shows negative health.
1 year
Health-related quality of life
Time Frame: 1 year
The Psychological General Well-Being Survey (PGWB) was developed for the evaluation of perceived well-being and distress and is a 22 item instrument with six domains. Anxiety (range 0-25); Depressed Mood (range 0-15); Positive Well-Being (range 0-20); Self Control (range 0-15); General Health (range 0-15) and Vitality (range 0-20). Scores are summed giving a score range of 22-132, with lower scores indicating poorly perceived well-being.
1 year

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Correlation between hormone levels and questionnaire results.
Time Frame: 1 year
Analysis of possible correlations between the change in hormone levels and survey scores 1-year postoperatively.
1 year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Mikael Wirén, M.D., PhD., Department of Surgery and Department of Clinical and Experimental Medicine, Linköping University, Sweden.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (ACTUAL)

March 1, 2014

Primary Completion (ACTUAL)

October 31, 2016

Study Completion (ACTUAL)

October 31, 2016

Study Registration Dates

First Submitted

June 13, 2017

First Submitted That Met QC Criteria

June 14, 2017

First Posted (ACTUAL)

June 15, 2017

Study Record Updates

Last Update Posted (ACTUAL)

June 16, 2017

Last Update Submitted That Met QC Criteria

June 15, 2017

Last Verified

June 1, 2017

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

De-indentified individual participant data can be made available for primary and secondary outcomes, upon request, after study completion and manuscript publication.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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