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Side Effects and Adherence Associated With Doxycycline Use Following Medical Abortion

Side Effects and Adherence Associated With Doxycycline Use Following Medical Abortion

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT01799252
Enrollment
582
Registered
2013-02-26
Start date
2012-11-30
Completion date
2013-12-31
Last updated
2014-02-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Abortion

Keywords

medical abortion, doxycycline, antibiotics, adherence, nausea

Brief summary

The effectiveness of antibiotic treatment at reducing post-abortion infection is unclear. The experiences of women prescribed routine antibiotics after medical abortion is missing from the existing evidence. This study seeks to add to the literature evidence of the side effects associated with antibiotic treatment that women experience and their adherence to prescribed regimens.

Detailed description

Medical abortion (MA) consists of administering medication, typically a combination of mifepristone and misoprostol, to induce an abortion without any invasive procedures. Early first trimester MA is effective1, highly acceptable to women, and safe. The risk of infection following medical abortion is small, at less than 1%. In rare circumstances, pelvic infection with clostridia bacteria following medical abortion has resulted in death. Since 2000, when mifepristone was registered in the United States, 8 such deaths have been recorded in the US. Following the publication of case reports of four clostridium-associated deaths after medical abortion in 2005, the reproductive health community reacted swiftly. Medical abortion protocols were altered in an effort to curb these drastic and rapidly fatal infections. Antibiotic treatment, typically a seven-day course of doxycycline, has become widespread in the United States. The effectiveness of antibiotic treatment at reducing post-abortion infection is unclear. The experiences of women prescribed routine antibiotics after medical abortion is missing from the existing evidence. This study seeks to add to the literature evidence of the side effects associated with antibiotic treatment that women experience and their adherence to prescribed regimens.

Interventions

None listed

Sponsors

Gynuity Health Projects
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
FEMALE
Healthy volunteers
Yes

Inclusion criteria

* Women who are having MA at the study clinic and are willing to complete a self-administered, computer-based questionnaire 7-14 days after taking mifepristone * Women who can read English or Spanish * In the doxycycline arm: Women who have been prescribed doxycycline

Exclusion criteria

* Women who were treated with antibiotics for a medical condition unrelated to their medical abortion between the initial visit and follow-up appointment * Women who have previously enrolled in this study

Design outcomes

Primary

MeasureTime frameDescription
Incidence rates of nausea7-14 days following medical abortionCompare the incidence rates of nausea between women who are prescribed a seven-day regimen of doxycycline to women who are not prescribed antibiotics following medical abortion
adherence7-14 days following medical abortionDocument the self-reported adherence to antibiotic regimens following medical abortion

Secondary

MeasureTime frameDescription
Nausea rates7-14 days following medical abortionCompare the rates of nausea between women who take at least one doxycycline pill to women who do not take any doxycycline following medical abortion
Non-nausea side effects7-14 days following medical abortionCompare the rates of other (non-nausea) side effects between women who are prescribed a seven-day regimen of doxycycline to women who are not prescribed antibiotics following medical abortion
Additional medications7-14 days following medical abortionCompare the use of additional medication to treat side effects between women who take antibiotics and women who do not take antibiotics following medical abortion
Costat time of filling prescriptionDocument the cost to women of antibiotics regimens following medical abortion

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026