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Oral Progesterone and Low Dose Aspirin in the Prevention of Preeclampsia

Oral Progesterone and Low Dose Aspirin in the Prevention of Preeclampsia in Patients With a Prior History of Preeclampsia: A Prospective, Randomized Clinical Trial

Status
Terminated
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00719537
Enrollment
3
Registered
2008-07-21
Start date
2008-07-31
Completion date
2011-03-31
Last updated
2017-04-17

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

Conditions

Preeclampsia

Keywords

preeclampsia, progesterone, aspirin, prevent, soluble fms-like tyrosine kinase (sFlt-1), Placental Growth Factor (PlGF), risk

Brief summary

This study investigates whether low dose aspirin combined with progesterone will decrease the risk of preeclampsia in pregnant women with a history of preeclampsia in a previous pregnancy.

Detailed description

Recent advances have shown that certain proteins may be present in a pregnant woman's blood very early in pregnancy which can predict who is at the highest risk for developing preeclampsia. These proteins can be measured and may be used to predict a woman's risk of developing preeclampsia. Special placental cells called endovascular cytotrophoblasts are needed in the early formation of the placenta. These placental cells invade the maternal blood vessels in the formation of the maternal-placental blood interface. Human Leukocytes Antigen-G (HLA-G) is a protein produced by the placental cells and prevents these special cells from being rejected by the mother's immune system. Recent studies have indicated that the level of HLA-G is decreased in placentas from mothers with preeclampsia. Progesterone, a naturally occurring hormone produced in pregnancy, has been shown to increase the production of HLA-G in the placental cytotrophoblast cells. In regards to the treatment of preeclampsia, studies have shown that low dose aspirin if given to mothers who have had severe early preeclampsia, lowers the risk for having preeclampsia again. This study aims to show that low dose aspirin combined with progesterone will decrease the risk of preeclampsia in pregnant women with a history of preeclampsia in a previous pregnancy. Data generated will determine levels and ratios of blood proteins that are predictive of preeclampsia at specific gestational ages.

Interventions

DRUGAspirin

Aspirin 81 mg once a day

DRUGPlacebo Oral Tablet

Placebo 1 tab Daily

DRUGProgesterone

Oral Progesterone 200 mg Twice Daily

Sponsors

John Uckele
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 45 Years
Healthy volunteers
No

Inclusion criteria

* pregnant patients with a previous history of preeclampsia in the immediate preceding pregnancy. * 18 to 45 years of age will be included.

Exclusion criteria

* Patients with chronic hypertension * children (age \< 17 years) * Patients that are currently taking anti-psychotics or Selective Serotonin Re-uptake Inhibitors * patients on medications which may be detrimental to the study interpretation will also be excluded at the principal investigator's discretion.

Design outcomes

Primary

MeasureTime frameDescription
Incidence of Preeclampsiasecond and third trimester of pregnancyNumber of Participants with preeclampsia in second and third trimester of pregnancy.

Countries

United States

Participant flow

Participants by arm

ArmCount
Aspirin and Placebo
Aspirin and placebo: Aspirin 81mg once daily and placebo once daily
2
Aspirin and Progesterone
aspirin 81 mg once a day oral progesterone 200mg twice daily
1
Total3

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyLost to Follow-up01
Overall StudyWithdrawal by Subject10

Baseline characteristics

CharacteristicAspirin and PlaceboAspirin and ProgesteroneTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
2 Participants1 Participants3 Participants
Region of Enrollment
United States
2 participants1 participants3 participants
Sex: Female, Male
Female
2 Participants1 Participants3 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 20 / 1
other
Total, other adverse events
0 / 20 / 1
serious
Total, serious adverse events
0 / 20 / 1

Outcome results

Primary

Incidence of Preeclampsia

Number of Participants with preeclampsia in second and third trimester of pregnancy.

Time frame: second and third trimester of pregnancy

Population: 1 Participant withdrawn in aspirin and placebo group, one participant lost to followup in aspirin and progesterone group.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Aspirin and PlaceboIncidence of Preeclampsia0 Participants

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