# Changes in Oral Contraceptive Hormones After Gastric Bypass Surgery

> **NCT01941134** · PHASE4 · WITHDRAWN · sponsor: **Johns Hopkins University**

## Conditions studied

- Bariatric Surgery Candidate
- Contraception

## Interventions

- **DRUG:** ethinyl estradiol-levonorgestrel

## Key facts

- **NCT ID:** NCT01941134
- **Lead sponsor:** Johns Hopkins University
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** WITHDRAWN
- **Start date:** 2013-04
- **Primary completion:** 2017-12-06
- **Final completion:** 2017-12-06
- **Target enrollment:** 0 (ACTUAL)
- **Why stopped:** Recruitment trouble
- **Last updated:** 2018-03-21

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01941134

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01941134, "Changes in Oral Contraceptive Hormones After Gastric Bypass Surgery". Retrieved via AI Analytics 2026-09-03 from https://api.ai-analytics.org/clinical/NCT01941134. Licensed CC0.

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