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Anticoagulation Profile in Pregnant Women Treated With Three Times a Day of Low Molecular Weight Heparin (LMWH)

Anticoagulation Profile in Pregnant Women Treated With Three Times a Day of Low Molecular Weight Heparin (LMWH)

Status
Recruiting
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04861103
Enrollment
12
Registered
2021-04-27
Start date
2020-10-01
Completion date
2027-07-31
Last updated
2025-10-29

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

Conditions

Anticoagulants, Pregnancy, High Risk

Brief summary

Pregnancy is associated with a increased risk of developing blood clots. There is nearly a 5 times greater risk of developing a blood clot in pregnancy. Lovenox is a medication that helps to prevent the body from developing clots. It is safe to use in pregnancy. Previous studies have demonstrated that despite recommendation of Lovenox, to prevent blood clots, the majority of patient's (70 to 90%) did not receive adequate levels of Lovenox at times throughout the day, which likely increases the risk of developing clots. The increase in blood volume and increase in kidney function that occurs in pregnancy may contribute to the inadequate levels. Currently the recommendation for pregnant and nonpregnant patients requiring Lovenox, is to calculate the daily dose of Lovenox and split the dose, giving half in the morning and the other half in the evening. This research study proposes that due to changes in the body during pregnancy that the daily Lovenox dosing be split into three times a day to achieve more consistent levels of Lovenox than twice a day in pregnant women.

Interventions

Three times a day dosing and measuring Xa peak and trough levels

Sponsors

University of California, Irvine
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Nulliparous or multiparous women with single intrauterine pregnancies who require therapeutic low molecular weight heparin during their pregnancy. * Participants must be age 18 or older.

Exclusion criteria

* Women with multiples. * Women less than age 18 * History of Heparin Induced Thrombocytopenia (HIT) * Allergy to enoxaparin

Design outcomes

Primary

MeasureTime frame
Factor Xa levels4 hours after injection

Countries

United States

Contacts

Primary ContactLizette Spears
lspiers@hs.uci.edu714.456.5694

Outcome results

None listed

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