Changes in Oral Contraceptive Hormones After Gastric Bypass Surgery

Status Withdrawn

Clinical Trial Summary

This study will attempt to determine whether having gastric bypass surgery changes the way that the gut absorbs hormones from birth control pills. It is believed that, because gastric bypass surgery causes malabsorption of nutrients and some medications, the levels of birth control hormones after the surgery will be lower than in women before they have the surgery. The investigators will ask several women to take a pack of birth control pills before having bypass surgery, and then another pack several months after surgery. The investigators will measure hormone levels in the blood. The investigators will also measure outcomes that may tell us how well the birth control pills are working, such as ultrasounds of the uterus and ovaries, and examination of the cervix.

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT01941134
Study type	Interventional
Source	Johns Hopkins University
Contact
Status	Withdrawn
Phase	Phase 4
Start date	April 2013
Completion date	December 6, 2017

View Details

See also
Status	Clinical Trial	Phase
Completed	`NCT02577601` - Impact of Combined Hormonal Contraceptives on UPA	Phase 4
Completed	`NCT03153644` - Improving Contraceptive Care for Women With Medical Conditions
Completed	`NCT04112095` - Adherence With Continuous-dose Oral Contraceptive: Evaluation of Self-Selection and Use	Phase 3
Recruiting	`NCT05521646` - Implementing Best Practice Postpartum Contraceptive Services Through a Quality Improvement Initiative	N/A
Active, not recruiting	`NCT04291001` - Ovarian Function With ENG Implant and UPA Use	Early Phase 1
Completed	`NCT04568980` - Assessment of Contraceptive Safety and Effectiveness in Cystic Fibrosis
Completed	`NCT03438682` - Real World Effectiveness and Safety of Hysteroscopic (Essure®) Compared to Laparoscopic Sterilization
Active, not recruiting	`NCT01948882` - Evaluation of Safety and Effectiveness of the Essure (Model ESS505) Device to Prevent Pregnancy in Women	N/A
Enrolling by invitation	`NCT04997499` - Adolescent Subcutaneous (SQ) Injection Video Validation	N/A
Recruiting	`NCT03589040` - Darunavir and Rilpivirine Interactions With Etonogestrel Contraceptive Implant	Phase 2
Completed	`NCT04463680` - Rifampin and the Contraceptive Implant	Phase 4
Completed	`NCT03154125` - Sayana® Press Extension Study	Phase 3
Withdrawn	`NCT03725358` - A Cluster-RCT to Increase the Uptake of LARCs Among Adolescent Females and Young Women in Cameroon.	N/A
Completed	`NCT02957630` - "E4/DRSP Endocrine Function, Metabolic Control and Hemostasis Study"	Phase 1/Phase 2
Completed	`NCT02456584` - Pharmacodynamics and Pharmacokinetics Study of Existing DMPA Contraceptive Methods	Phase 1
Completed	`NCT02718222` - Impact and Performance of Institutionalizing Immediate Post-partum IUD Services	N/A
Recruiting	`NCT02121067` - LNG-IUS at 2 Weeks Postpartum	Phase 4
Terminated	`NCT02169869` - Immediate Postplacental IUD Insertion	N/A
Recruiting	`NCT02292056` - Medication Safety and Contraceptive Counseling for Reproductive Aged Women With Psychiatric Conditions	N/A
Withdrawn	`NCT01930994` - Kenya Sino-implant (II) PK Study	N/A