Trial of Leptin Administration After Roux-en-Y Gastric Bypass
Public ClinicalTrials.gov record NCT00710814. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Effects of Leptin on Body Weight and Neuroendocrine Axes After Gastric Bypass
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This is a pilot and feasibility study to examine a novel intervention using leptin in weight-reduced individuals who have undergone bariatric surgery but still remain obese. Leptin, a peptide hormone secreted from adipose tissue, is a regulator of food intake and energy expenditure. Administration of leptin resulted in profound weight reduction in the few reported cases of obese individuals with genetic leptin deficiency. However, most obese people have increased leptin levels. Such individuals are said to be in a "leptin-resistant" state, whereby administration of physiological concentrations of leptin are ineffective at producing significant weight reduction. Roux-en-Y gastric bypass surgery (RYGBP) is more effective than diet alone in producing long-term reduction of body weight. Yet even after surgery there is a plateau in weight loss though the individual may still be obese and have or be at risk for obesity related morbidities. The investigators have shown that plasma leptin levels are significantly lower in women after RYGBP compared with BMI-matched controls. This state of relative hypoleptinemia or leptin insufficiency suggests that post-RYGBP individuals may be in a "leptin-sensitive" state and, thus, would undergo further weight loss when administered doses of leptin that would not normally result in significant weight reduction. This study will examine the effects of leptin administered by self-injection twice per day on body weight and endocrine function. All individuals will received leptin and placebo and different times during the 34 week study period.
Study identification
- NCT ID
- NCT00710814
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 1, Phase 2
- Enrollment
- 31 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 25 Years to 65 Years
- Sex
- Female
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Apr 2008 (Type not available)
- Primary completion
- Aug 2012 (Actual)
- Completion
- Jul 2014 (Actual)
- Last update posted
- Nov 16, 2015
2008 – 2014
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Columbia University Medical Center | New York | New York | 10032 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT00710814, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Nov 16, 2015 · Synced Oct 21, 2026
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Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT00710814 live on ClinicalTrials.gov.