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CompletedNCT00547170Tu Du DoxyUpdated May 16, 2008

Doxycycline Prophylaxis at Vacuum Aspiration Trial

A Phase 4 interventional study of Doxycycline pre-operatively and Doxycycline post-operatively in Endometritis, sponsored by University of Pittsburgh. Completed at 1 site in Vietnam. Open to female participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2008-05-16.

Sponsored by University of Pittsburgh · Phase 4, Interventional, and Prevention

Phase
Phase 4
Study type
Interventional
Enrollment
1,000
Allocation
Randomized
Ages
18 Years and older
Sex
Female
01

Study summary

This study is a randomized, double-blinded, controlled trial comparing two regimens of doxycycline for the prevention of infection after surgical abortion. One thousand women undergoing surgical abortion in the first trimester will be enrolled from the clinic at Tu Du Hospital, Ho Chi Minh City, Vietnam. The standard regimen has been 100 mg twice daily for 5 days after the abortion. Subjects will be randomized to the standard regimen or to take 200 mg doxycycline pre-operatively. Subjects found to have a positive Chlamydia EIA test will receive a 7-day course of doxycycline regardless of study group. Subjects will complete questionnaires of symptoms, including nausea and emesis in the recovery room after the procedure and at a single follow-up visit two weeks later. The primary outcome will be infection after abortion, defined below. Analyses will be performed including and excluding Chlamydia-positive subjects. Secondary outcomes will be the proportion with nausea, emesis, and other side-effects.

02

Conditions studied

  • Endometritis

Keywords

  • pelvic infection
  • abortion
  • doxycycline
03

In context

Endometritis

56 studies on the registry are indexed under Endometritis; 9 are open to participants now.

This study's enrollment of 1,000 is above the median of 202 across 42 interventional studies indexed under Endometritis.

Browse Endometritis studies →

Lead sponsor

University of Pittsburgh is the lead sponsor of 1,414 studies on the registry; 168 are open to participants now.

Of its 8 completed or terminated interventional studies of FDA-regulated products, 4 (50%) have results posted.

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

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
Female
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Women seeking elective surgical abortion
  2. Gestational age 6 weeks 0 days to 12 weeks 6 days, confirmed by ultrasound.
  3. Willing and able to sign an informed consent.
  4. Willing to comply with the study protocol.
  5. Age at enrollment of 18 years or more.

Exclusion criteria

Exclusion criteria

  1. Allergy to doxycycline or any tetracycline
  2. Evidence of current pelvic infection
  3. Breastfeeding
  4. Current or recent use (within the past 7 days) of any other antibiotic.
  5. Prior cardiac valve surgery or cardiac valve replacement.
  6. Active use of alcohol, heroin, or cocaine.

Post-enrollment Exclusion criteria

1) Abortion procedure not performed

05

Study design

Phase
Phase 4
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
1,000 participants (actual)

Study arms

  • Experimental
    1

    Half of enrolled women will be randomly assigned to group 1.

    Drug: Doxycycline pre-operatively

  • Active comparator
    2

    Half of enrolled women will be randomly assigned to group 2

    Drug: Doxycycline post-operatively

Interventions

  • DrugDoxycycline pre-operatively

    Two capsules of Doxycycline 100 mg before vacuum aspiration Placebo "100 mg" twice daily for 5 days after vacuum aspiration (appearance of capsules is the same for both groups)

  • DrugDoxycycline post-operatively

    Two capsules of placebo "100 mg" before vacuum aspiration Doxycycline 100 mg twice daily for 5 days after vacuum aspiration (appearance of capsules is the same for both groups)

06

What researchers measure

Primary outcomes

  1. Infection

    Time frame: 2 weeks

Secondary outcomes

  1. nausea and emesis

    Time frame: 2 weeks

  2. compliance (completion of study medication)

    Time frame: 5 days

07

Study locations

1 site
  • Tu Du Hospital
    Ho Chi Minh City, Vietnam
08

Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of Jan 2007, a primary completion of Mar 2008 and a completion of Mar 2008. It does not say whether these dates are actual or estimated.

How these figures are worked out, and which studies are left out of them.

Registered
Oct 19, 2007
First posted
Oct 22, 2007
Start
Jan 2007
Primary completionActual
Mar 2008
CompletionActual
Mar 2008
Last update
May 16, 2008
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on May 16, 2008, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT00547170
Collaborators
Tu Du Hospital
First posted
Oct 22, 2007
Start date
Jan 2007
Primary completion
Mar 2008
Completion
Mar 2008
Last update
May 16, 2008

Study contacts

Matthew F Reeves, MD
principal investigator · University of Pittsburgh
Loi T Tran, MD
study director · Tu Du Hospital, Ho Chi Minh City, Vietnam

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in May 2008. You cannot join it, but the record below documents what was studied.

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