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A Comparison of Compliance Between Clonidine Patch and Methyldopa for the Treatment of Chronic Hypertension in Pregnancy

NCT00329511 · Status: WITHDRAWN · Phase: NA · Type: INTERVENTIONAL

Last updated 2018-01-30

No results posted yet for this study

Summary

High blood pressure (BP) before pregnancy is called chronic hypertension (CHTN), and is associated with an increased risk of development of pregnancy related high BP called preeclampsia, preterm delivery, decreased growth of the fetus, fetal death, premature separation of the placenta from the uterus resulting in damage to the fetus and cesarean delivery. Longer duration and severity of CHTN in pregnancy leads to worse outcomes for the mother and the fetus. Treatment of mild CHTN in pregnancy does not improve these outcomes, and therefore, medications to lower BP are used for moderate to severe hypertension. To date the literature on the medications used in pregnancy is extremely limited.

Methyldopa is used as a first choice medicine for CHTN in pregnancy. It acts on the central nervous system (CNS) by relaxation of the blood vessels leading to a decrease in BP. It does not decrease the blood flow to the uterus, placenta, or the fetus (4). Methyldopa is a weak antihypertensive medicine given three or four times a day and frequently needs changes in the dose or may require an additional medication to control BP. This may lead to a greater chance of non compliance. Another option is Clonidine which is an effective antihypertensive treatment and is available in many forms (oral, parenteral, and transdermal.) It acts on the maternal CNS. Clonidine is not associated with teratogenic or neonatal side effects. Transdermal clonidine (catapres-TTS®) is a preparation of clonidine hydrochloride that can be released and absorbed transdermally over a 7-day period.

The study will determine differences in compliance between the two antihypertensive regimens- oral methyldopa and Catapres-TTS, comparisons of patient tolerability, compliance and adequacy of BP control, as well as provide information on an alternate option for BP control.

Conditions

Interventions

DRUG

methyldopa vs. clonidine

Comparison of compliance

DRUG

clonidine patch

methyldopa 250 - 750 mg qid clonidine patch 0.1 - 0.4 mg q week

Sponsors & Collaborators

  • Afshan B. Hameed, M.D.

    lead OTHER

Principal Investigators

  • Afshan B Hameed, MD · University of California, Irvine

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
45 Years
Sex
FEMALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2004-09-30
Primary Completion
2008-12-31
Completion
2008-12-31

Countries

  • United States

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00329511 on ClinicalTrials.gov