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CompletedNCT04835233Updated Dec 28, 2023

Management of Hypertension in the Early Postpartum: a Randomized Controlled Trial

A Phase 4 interventional study of Methyldopa 250 MG in Pregnancy-Induced Hypertension in Postpartum, Postpartum Pre-Eclampsia and Hypertension, sponsored by Federal University of Paraíba. Completed at 1 site in Brazil. Open to female participants aged 18 Years to 50 Years. Per ClinicalTrials.gov, last updated 2023-12-28.

Sponsored by Federal University of Paraíba · Phase 4, Interventional, and Treatment

Phase
Phase 4
Study type
Interventional
Enrollment
180
Allocation
Randomized
Ages
18 Years to 50 Years
Sex
Female
01

Study summary

In hypertensive mothers, it is common in clinical practice to substitute methyldopa for another medication, such as captopril, immediately after delivery, which may, as a consequence, cause a rebound effect or an initial lack of blood pressure control until the new medication had a more complete action. Thus, the treatment of hypertension in the puerperium is generally guided by expert opinion and recommendations for guidelines, based on non-robust evidence. OBJECTIVE: To evaluate the control of blood pressure in postpartum women with hypertensive syndromes during pregnancy with the maintenance of the continued use of previously used methyldopa compared to switching from antihypertensive regimen to the use of captopril. METHOD: Randomized, double-blind, drug controlled clinical trial. EXPECTED RESULT: better pressure control with the continued use of methyldopa.

Read the detailed description

Objective: To evaluate blood pressure control during the immediate postpartum in hypertensive women who had used methyldopa during pregnancy, comparing continuation of that drug with switching it for captopril. Methods: A single-blind, randomized clinical trial involving 180 postpartum women with arterial hypertension who had previously used methyldopa during pregnancy at a minimum dose of 750 mg/day for at least one week prior to delivery. Following delivery, the patients were randomized either to continue with methyldopa (minimum dose 250 mg, three times a day) (methyldopa group, n=90) or to switch to captopril (at an initial dose of 25 mg, three times a day) (captopril group, n=90). Logistic regression will be used to compare the groups regarding the potential to maintain blood pressure below 140/90 mmHg at over 50% of measurements postpartum.

02

Conditions studied

  • Pregnancy-Induced Hypertension in Postpartum
  • Postpartum Pre-Eclampsia
  • Hypertension
03

In context

Eclampsia

328 studies on the registry are indexed under Eclampsia; 48 are open to participants now.

This study's enrollment of 180 is above the median of 120 across 169 interventional studies indexed under Eclampsia.

Browse Eclampsia studies →

Lead sponsor

Federal University of Paraíba is the lead sponsor of 72 studies on the registry; 6 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 50 Years
Sexes eligible
Female
Accepts healthy volunteers
No

Inclusion criteria

  • puerpera;
  • hypertensive;
  • use of methyldopa during pregnancy at a minimum dose of 750 mg / day, for at least 07 days before delivery

Exclusion criteria

Exclusion Criteria:

  • Use of other antihypertensive medications or illicit drugs that may interfere with maternal hemodynamics, and / or Contraindications to the use of captopril or methyldopa
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Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Investigator, Outcomes assessor)
Enrollment
180 participants (actual)

Study arms

  • Experimental
    methyldopa

    maintaining postpartum the use of methyldopa 250 mg 01 tablet every 8 hours, being able to double the dose depending on pressure levels, up to 15 days postpartum

    Drug: Methyldopa 250 MG

  • Active comparator
    captopril

    postpartum exchange methyldopa for captopril 25 mg 01 tablet every 8 hours, doubling the dose depending on pressure levels, up to 15 days postpartum

    Drug: Methyldopa 250 MG

Interventions

  • DrugMethyldopa 250 MG

    maintaining postpartum the use of methyldopa 250 mg 01 tablet every 8 hours, being able to double the dose depending on pressure levels, up to 15 days postpartum

06

What researchers measure

Primary outcomes

  1. Values of blood pressure (systolic blood pressure)

    systolic blood pressure values in mmHg (millimeters of mercury) after starting postpartum medication

    Time frame: every 4 hours immediately after the use of medication until hospital discharge

  2. Values of blood pressure (dyastolic blood pressure)

    diastolic blood pressure values in mmHg (millimeters of mercury) after starting postpartum medication

    Time frame: every 24 hours immediately after the use of medication until hospital discharge

  3. Values of blood pressure ( mean arterial pressure)

    mean blood pressure values in mmHg (millimeters of mercury) after starting postpartum medication

    Time frame: every 4 hours immediately after the use of medication until hospital discharge

  4. Values of heart rate

    values of heart rate bpm (beat per minute) after starting postpartum medication

    Time frame: every 4 hours immediately after the use of medication until hospital discharge

  5. Frequency of hypertensive peaks

    numbers of hypertensive peaks (Systolic Blood Pressure ≥160 mmHg and / or Diastolic Blood Pressure ≥ 110 mmHg) after starting postpartum medication

    Time frame: every 4 hours immediately after the use of medication until hospital discharge

Secondary outcomes

  1. Profile of the following laboratory tests ( protein urinary) on admission and their evolution during the puerperium

    Profile of the following laboratory tests on admission and their evolution during the days of puerperium: urinary protein / creatinine (P / C) ratio (measured in mg / dL). Values greater than 300mg/dL of protein in 24h are indicative of pre-eclampsia.

    Time frame: the first before delivery and the next every 24 hours after delivery until the normalization of the values

  2. Profile of the following laboratory tests ( urea) on admission and their evolution during the puerperium

    Profile of the following laboratory tests on admission and their evolution during the puerperium: urea ( blood dosage) measure of value ( mg/dL)

    Time frame: the first before delivery and the next every 24 hours after delivery until the normalization of the values

  3. Profile of the following laboratory tests (creatinine) on admission and their evolution during the puerperium

    Profile of the following laboratory tests on admission and their evolution during the puerperium: creatinine ( blood dosage) measure of value ( mg/dL)

    Time frame: the first before delivery and the next every 24 hours after delivery until the normalization of the values

  4. Profile of the following laboratory tests (DHL) on admission and their evolution during the puerperium

    Profile of the following laboratory tests on admission and their evolution during the puerperium: lactic dehydrogenase -DHL ( blood dosage) measure of value ( UI/L)

    Time frame: the first before delivery and the next every 24 hours after delivery until the normalization of the values

  5. Profile of the following laboratory tests (uric acid) on admission and their evolution during the puerperium

    Profile of the following laboratory tests on admission and their evolution during the puerperium: uric acid (blood dosage) measure of value mg/dL

    Time frame: the first before delivery and the next every 24 hours after delivery until the normalization of the values

  6. Profile of the following laboratory tests aspartate transferase (AST)) on admission and their evolution during the puerperium

    Profile of the following laboratory tests on admission and their evolution during the puerperium: aspartate transferase (blood dosage) measure of value U/L

    Time frame: the first before delivery and the next every 24 hours after delivery until the normalization of the values

  7. Profile of the following laboratory tests alanine transferase (ALT) on admission and their evolution during the puerperium

    Profile of the following laboratory tests on admission and their evolution during the puerperium: alanine transferase (ALT) (blood dosage) measure of value U/L

    Time frame: the first before delivery and the next every 24 hours after delivery until the normalization of the values

  8. Profile of the following laboratory tests (total bilirubins, direct and indirect ) on admission and their evolution during the puerperium

    Profile of the following laboratory tests on admission and their evolution during the puerperium: total bilirubins, direct and indirect (blood dosage)- measure of value U/L

    Time frame: the first before delivery and the next every 24 hours after delivery until the normalization of the values

  9. Profile of the following laboratory tests (platelets) on admission and their evolution during the puerperium

    Profile of the following laboratory tests on admission and their evolution during the puerperium: platelets/ µL (blood dosage)

    Time frame: the first before delivery and the next every 24 hours after delivery until the normalization of the values

  10. Profile of the following laboratory tests (glomerular filtration rate) on admission and their evolution during the puerperium

    Profile of the following laboratory tests on admission and their evolution during the puerperium: calculated by formula Modification of Diet Disease (MDRD) or Chronic Kidney Disease Epidemiology Collaboration ( CKD-EPI), obtained by the site: http://mdrd.com/

    Time frame: the first before delivery and the next every 24 hours after delivery until the normalization of the values

  11. Profile of the following laboratory tests (sodium, potassium and chlorine) on admission and their evolution during the puerperium

    Profile of the following laboratory tests on admission and their evolution during the puerperium: sodium, potassium and chlorine - measure of value (mEq/L)

    Time frame: the first before delivery and the next every 24 hours after delivery until the normalization of the values

  12. Days of hospital stay after delivery until blood pressure control

    Days of hospital stay after delivery until blood pressure control (more than 50% of blood pressure measurements less than or equal to 140 x 90 mmHg)

    Time frame: number of days (24 hours) from postpartum hospitalization until normalization of blood pressure

  13. Need for drug use for hypertensive peak ( yes or no)

    Clonidine was the drug of choice in the study. The hypertensive peak was considered to be greater than or equal to systolic pressure 160 mmHg and / or diastolic pressure greater than or equal to 110 mmHg.

    Time frame: every 4 hours immediately after the use of medication until hospital discharge

  14. Need to associate another hypotensive drug to control blood pressure ( yes or no)

    Need to associate another hypotensive drug to control blood pressure until blood pressure control (more than 50% of blood pressure measurements less than or equal to 140 x 90 mmHg)

    Time frame: immediately after the use of medication until hospital discharge

  15. use of analgesic and anti-inflammatory ( yes or no)

    need for analgesic and anti-inflammatory use and the amount used (number of doses)

    Time frame: number of doses in 24 hours for postpartum analgesia

  16. Use of antihypertensive drugs at the time of hospital discharge ( yes or no)

    patient was discharged using antihypertensive medication

    Time frame: immediately after discharge from the hospital up to 15 days after delivery

  17. Frequency of adverse effects most often described with medications ( yes or no)

    numbers of adverse effects most often described with medications: drowsiness, headache, dizziness, orthostatic hypotension, nausea, vomiting, diarrhea, dry mouth, dry cough, skin rashes, itching, arthralgia, skin lesions, dysgeusia, angioedema

    Time frame: immediately after the use of medication until hospital discharge

  18. maternal complicatios ( yes or no)

    maternal complications (eclampsia, HELLP syndrome, impending eclampsia, oliguria, puerperal complications and maternal death) and complications related to hypertensive peaks (stroke, acute myocardial infarction and acute lung edema)

    Time frame: immediately after the use of medication until hospital discharge

  19. satisfactory breastfeeding

    satisfactory, unsatisfactory and with difficulty reported by the mother

    Time frame: immediately after the use of medication until hospital discharge

  20. degree of maternal satisfaction with medication

    I hated it, I didn't like it, indifferent, I liked it, I loved it (scale of faces)

    Time frame: immediately after the use of medication until hospital discharge

  21. Postpartum depression

    Edinburgh Postpartum Depression Scale (EPDS)

    Time frame: immediately after the use of medication until return for evaluation of the patient 15 days after delivery

  22. Neonatal outcomes ( bradycardia) -yes or no

    bradycardia( below 100 beats per minute of the newborn)

    Time frame: immediately after the use of medication until hospital discharge

  23. Neonatal outcomes ( hypoglycemia) -yes or no

    blood glucose below \< 45 mg/dL

    Time frame: immediately after the use of medication until hospital discharge

  24. Neonatal outcomes (Hypothermia) -yes or no

    Hypothermia below 36,5 degree celsius

    Time frame: immediately after the use of medication until hospital discharge

  25. Neonatal outcomes (comorbidity) -yes or no

    Some unfavorable clinical condition of the newborn (comorbidity)

    Time frame: immediately after the use of medication until hospital discharge

  26. Neonatal outcomes (hypotension) -yes or no

    mean arterial pressure (mmHg) below gestational age (weeks)

    Time frame: immediately after the use of medication until hospital discharge

07

Study locations

1 site
  • UFPB Paraíba Federal University
    João Pessoa, Paraíba 58050-585, Brazil
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 28, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04835233
Lead sponsor
Federal University of Paraíba
Responsible party
Rossana Mariana Carvalho de Paiva Marques (MD, Federal University of Paraíba) — Principal investigator
First posted
Apr 8, 2021
Start date
May 1, 2021
Primary completion
Dec 16, 2022
Completion
Dec 31, 2022
Last update
Dec 28, 2023

Study contacts

Andre Telis Araujo, PhD
principal investigator · Federal University of Paraíba
Luiz Aparecido Bortolotto, PhD
principal investigator · FMUSP

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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