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Status unknownNCT01843257RBAUpdated Apr 27, 2021

Effects of Alcohol After Bariatric Surgery

An observational study in Obesity, sponsored by University of Illinois at Urbana-Champaign. Status unknown at 1 site in United States. Open to female participants aged 21 Years to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2021-04-27.

Sponsored by University of Illinois at Urbana-Champaign · Observational

The sponsor has not verified this record recently (last verified Apr 2021), so the status shown — last known as Active, not recruiting — may be out of date.
Study type
Observational
Model
Other
Time perspective
Other
Enrollment
100
Ages
21 Years to 65 Years
Sex
Female
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Study summary

The investigators wish to study the effects of three forms of bariatric surgery: gastric bypass, sleeve gastrectomy, and lap banding. The surgery is not part of the clinical trial. If insurance does not cover the procedure, then the patient is responsible for payment of the surgical process. The investigators are doing pre- and post-surgery testing to provide a better understanding of the effect of bariatric surgery-induced weight loss on 1) alcohol absorption, distribution and elimination from the body; 2) the effects of alcohol on blood sugar; and 3) the effects of alcohol on mood.

Read the detailed description

The study includes seven groups of women: One group will be undergoing gastric bypass, another group will be undergoing lap banding, a third group will be undergoing sleeve gastrectomy, the fourth group will be women who underwent gastric bypass 1-5 years ago, the fifth group will be women who underwent lap banding 1-5 years ago, the sixth group will be women who underwent sleeve gastrectomy 1-5 years ago, and the seventh group will be a control group who have not undergone bariatric surgery.

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Conditions studied

  • Obesity

Keywords

  • Alcohol intake after bariatric surgery
  • Alcohol and bariatric surgery
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In context

Lead sponsor

University of Illinois at Urbana-Champaign is the lead sponsor of 188 studies on the registry; 29 are open to participants now.

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

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Who can participate

Ages eligible
21 Years to 65 Years
Sexes eligible
Female
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

Bariatric surgery clinic

Inclusion criteria

  • Women
  • Drink alcohol at least once per month

Exclusion criteria

Exclusion Criteria:

  • Men
  • Drinks more than 7 standard drinks per week or more than 4 standard drinks in a period of 2 hours for the month before enrolling in the study.
  • Regular use of drugs of abuse or use of any medication interacting with alcohol pharmacokinetics or pharmacologic effects.
  • Alcohol dependence
  • Pregnancy, lactation or not using effective methods of birth control
  • Smoking
  • Anemia
  • Liver disease
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Study design

Observational model
Other
Time perspective
Other
Enrollment
100 participants (estimated)
Patient registry
No
Biospecimen retention
Samples with dna

Groups and cohorts

  • Gastric Bypass longitudinal

    Morbidly obese subjects undergoing gastric bypass surgery. Subjects will be assessed in two testing sessions about 1 week apart, in which their response to alcohol or nonalcoholic (placebo) beverage will be evaluated in a randomized cross-over fashion before surgery. The two testing sessions will be repeated \~ 9 months after surgery.

    Other: Alcohol challenge test Alcohol visit first · Other: Alcohol challenge test Placebo visit first

  • Gastric Banding longitudinal

    Morbidly obese subjects undergoing laparoscopic gastric banding surgery. Subjects will be assessed in two testing sessions about 1 week apart, in which their response to alcohol or nonalcoholic (placebo) beverage will be evaluated in a randomized cross-over fashion before surgery. The two testing sessions will be repeated \~ 9 months after surgery.

    Other: Alcohol challenge test Alcohol visit first · Other: Alcohol challenge test Placebo visit first

  • Gastric Bypass (cross-sectional)

    Subjects who underwent gastric bypass surgery 1-5 years ago. Subjects will be assessed in two testing sessions about 1 week apart, in which their response to alcohol or nonalcoholic (placebo) beverage will be evaluated in a randomized cross-over fashion before surgery.

    Other: Alcohol challenge test Alcohol visit first · Other: Alcohol challenge test Placebo visit first

  • Gastric Banding (cross-sectional)

    Subjects who underwent gastric banding surgery 1-5 years ago. Subjects will be assessed in two testing sessions about 1 week apart, in which their response to alcohol or nonalcoholic (placebo) beverage will be evaluated in a randomized cross-over fashion before surgery.

    Other: Alcohol challenge test Alcohol visit first · Other: Alcohol challenge test Placebo visit first

  • Sleeve gastrectomy (longitudinal)

    Morbidly obese subjects who will undergo sleeve gastrectomy. Subjects will be assessed in two testing sessions about 1 week apart, in which their response to alcohol or nonalcoholic (placebo) beverage will be evaluated in a randomized cross-over fashion before surgery. The two testing sessions will be repeated \~ 9 months after surgery.

    Other: Alcohol challenge test Alcohol visit first · Other: Alcohol challenge test Placebo visit first

  • Sleeve gastrectomy (cross-sectional)

    Subjects who underwent sleeve gastrectomy 1-5 years ago. Subjects will be assessed in two testing sessions about 1 week apart, in which their response to alcohol or nonalcoholic (placebo) beverage will be evaluated in a randomized cross-over fashion before surgery.

    Other: Alcohol challenge test Alcohol visit first · Other: Alcohol challenge test Placebo visit first

  • No bariatric surgery control

    Control group of women with age and BMI similar to those in the cross-sectional arm of the study who have not undergone bariatric surgery. Subjects will be assessed in two testing sessions about 1 week apart, in which their response to alcohol or nonalcoholic (placebo) beverage will be evaluated in a randomized cross-over fashion before surgery.

    Other: Alcohol challenge test Alcohol visit first · Other: Alcohol challenge test Placebo visit first

Interventions

  • OtherAlcohol challenge test Alcohol visit first

    Subjects will be assessed in two testing sessions about 1 week apart, in which their response to alcohol or nonalcoholic (placebo) beverage will be evaluated in a randomized cross-over fashion (visit 1 alcohol, visit 2 placebo).

  • OtherAlcohol challenge test Placebo visit first

    Subjects will be assessed in two testing sessions about 1 week apart, in which their response to alcohol or nonalcoholic (placebo) beverage will be evaluated in a randomized cross-over fashion (visit 1 placebo, visit 2 alcohol).

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What researchers measure

Primary outcomes

  1. Change from before bariatric surgery in alcohol's Tmax, Cmax, area under the curve and elimination rates at approximately 9 months after bariatric surgery

    Time to reach maximum peak blood alcohol levels, alcohol area under the time-concentration curve and alcohol's constant of elimination will be examined before and after surgery and compared between those who had gastric bypass versus lap banding.

    Time frame: Subjects in the longitudinal arm of the study will be assessed before surgery and approximately 9 months after surgery. A group of subjects will be assessed 1-5 years after surgery only.

  2. Change from before bariatric surgery in alcohol subjective effects at approximately 9 months after bariatric surgery

    Validated instruments (such as the Addiction Research Center Inventory) will be used to measured alcohol's subjective effects at different timepoints after drinking an alcoholic or a non-alcoholic (control) beverage.

    Time frame: Subjects in the longitudinal arm of the study will be assessed before surgery and approximately 9 months after surgery. A group of subjects will be assessed 1-5 years after surgery only.

Secondary outcomes

  1. Change from before bariatric surgery on alcohol's effects on glucose homeostasis at approximately 9 months after bariatric surgery

    Time frame: Subjects in the longitudinal arm of the study will be assessed before surgery and approximately 9 months after surgery. A group of subjects will be assessed 1-5 years after surgery only.

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Study locations

1 site
  • University of Illinois at Urbana Champaign
    Saint Louis, Missouri 63110, United States
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References and documents

Publications

  • Pepino MY, Okunade AL, Eagon JC, Bartholow BD, Bucholz K, Klein S. Effect of Roux-en-Y Gastric Bypass Surgery: Converting 2 Alcoholic Drinks to 4. JAMA Surg. 2015 Nov;150(11):1096-8. doi: 10.1001/jamasurg.2015.1884. No abstract available. PubMed 26244751 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 27, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT01843257
Lead sponsor
University of Illinois at Urbana-Champaign
Collaborators
University of Missouri-Columbia, Washington University School of Medicine
Responsible party
Sponsor
First posted
Apr 30, 2013
Start date
Apr 2013
Primary completion
Sep 2021 (estimated)
Completion
Sep 2021 (estimated)
Last update
Apr 27, 2021

Study contacts

Marta Y Pepino, PhD
principal investigator · University of Illinois at Urbana-Champaign

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Apr 2021. You cannot join it, but the record below documents what was studied.

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