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Hypertension in PregnancyPhase 4NCT04790279

Amlodipine Versus Nifedipine ER for the Management of Postpartum Hypertension

A Phase 4 study testing Amlodipine and NIFEdipine ER in people with Hypertension in Pregnancy, run by Prisma Health-Upstate at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

A significant number of pregnancies are complicated by hypertensive disorders. Hypertension often worsens in the postpartum period and many women need started on medications. Currently, recommended medications for blood pressure management in pregnant and postpartum women are limited, with labetalol and nifedipine ER… Read more about this study

Who is it for?
Ages 18 years and older, women only
Conditions the study is for
Hypertension in Pregnancy
What is being tested?
Amlodipine and NIFEdipine ER
Could I receive a placebo?
No, everyone receives an active treatment
How many people
175 participants
Where
1 siteUnited States
Study dates
9 Apr 2021to 25 Jan 2023
Phase
Phase 4
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Postpartum women with a diagnosis of chronic hypertension, gestational hypertension, or preeclampsia
  • Delivery at or beyond 20 weeks' gestation
  • Need for antihypertensive therapy, defined as blood pressure >/= 150 mmHg systolic and/or 100 mmHg diastolic on two occasions four hours apart or isolated blood pressure >160/110 mmHg
  • English or Spanish-speaking
  • Age 18 years or older

Who cannot join

  • Use of antihypertensive prior to delivery (for any indication)
  • Allergy to nifedipine ER or amlodipine
  • Persistent tachycardia (as defined by the treatment team)

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Greenville Memorial Hospital

    Greenville, South Carolina, 29605

Other trials in United States

About this study

Official title: Amlodipine Versus Nifedipine ER for the Management of Postpartum Hypertension: A Randomized Controlled Noninferiority Trial

A significant number of pregnancies are complicated by hypertensive disorders. Hypertension often worsens in the postpartum period and many women need started on medications. Currently, recommended medications for blood pressure management in pregnant and postpartum women are limited, with labetalol and nifedipine ER being the most commonly used medications. While these medications are both effective, they are not without limitations. Amlodipine is a medication in the same class as nifedipine ER. It is a first-line antihypertensive in the general population. It tends to have less side effects than nifedipine ER. It has not been studied specifically in postpartum women. The purpose of this study is to determine if amlodipine is noninferior to nifedipine ER in managing hypertension in the postpartum period.

Being tested
Amlodipine, NIFEdipine ER
Medical subject headings
Hypertension, Pregnancy-Induced

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • AmlodipineDrug

    Initiation of amlodipine 2.5 mg

  • NIFEdipine ERDrug

    Initiation of nifedipine ER 30 mg

Study groups in NCT04790279
Study groupRoleWhat they receive
AmlodipineExperimentalNot described
Receives: Drug: Amlodipine
Nifedipine ERActive comparatorNot described
Receives: Drug: NIFEdipine ER

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Length of Stay

    length of stay from delivery until discharge

    Measured: Through hospital stay, on average 2-5 days

Secondary outcomes (6)
  1. Number of Acute Treatments After Medication Initiation

    Measured: Through hospital stay, on average 2-5 days

  2. Patient Reported Side Effects

    Side effects based on patient reported survey where 1 = never, 2 = rarely, 3 = sometimes, 4 = often, 5 = always

    Measured: Through hospital stay, on average 2-5 days

  3. Number of Patients Discontinuing Medication Due to Side Effects

    Measured: Through hospital stay, on average 2-5 days

  4. Number of Patients Requiring Hospital Readmission

    Measured: until 6 weeks postpartum

  5. Breastfeeding Duration of 6+ Weeks

    Measured: until 6 weeks postpartum

  6. Number of Patients Reporting Satisfaction With Breastfeeding Experience on Patient-completed Questionnaire

    Measured: until 6 weeks postpartum

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted10 Mar 2021
  2. Study start9 Apr 2021
  3. Primary completion13 Dec 2022
  4. Study completion25 Jan 2023

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
175 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04790279
Sponsor's protocol ID
Pro00106643
Status last verified
Dec 2022
First submitted
3 Mar 2021
Last updated
28 Oct 2024
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Publications

  • Hypertension in pregnancy. Report of the American College of Obstetricians and Gynecologists' Task Force on Hypertension in Pregnancy. Obstet Gynecol. 2013 Nov;122(5):1122-1131. doi: 10.1097/01.AOG.0000437382.03963.88. No abstract available.

    PubMed 24150027
  • ACOG Practice Bulletin No. 202: Gestational Hypertension and Preeclampsia. Obstet Gynecol. 2019 Jan;133(1):1. doi: 10.1097/AOG.0000000000003018.

    PubMed 30575675
  • American College of Obstetricians and Gynecologists' Committee on Practice Bulletins-Obstetrics. ACOG Practice Bulletin No. 203: Chronic Hypertension in Pregnancy. Obstet Gynecol. 2019 Jan;133(1):e26-e50. doi: 10.1097/AOG.0000000000003020.

    PubMed 30575676
  • Ainuddin J, Javed F, Kazi S. Oral labetalol versus oral nifedipine for the management of postpartum hypertension a randomized control trial. Pak J Med Sci. 2019 Sep-Oct;35(5):1428-1433. doi: 10.12669/pjms.35.5.812.

    PubMed 31489020
  • Magee L, von Dadelszen P. Prevention and treatment of postpartum hypertension. Cochrane Database Syst Rev. 2013 Apr 30;2013(4):CD004351. doi: 10.1002/14651858.CD004351.pub3.

    PubMed 23633317
  • Cairns AE, Pealing L, Duffy JMN, Roberts N, Tucker KL, Leeson P, MacKillop LH, McManus RJ. Postpartum management of hypertensive disorders of pregnancy: a systematic review. BMJ Open. 2017 Nov 28;7(11):e018696. doi: 10.1136/bmjopen-2017-018696.

    PubMed 29187414
  • Sharma KJ, Greene N, Kilpatrick SJ. Oral labetalol compared to oral nifedipine for postpartum hypertension: A randomized controlled trial. Hypertens Pregnancy. 2017 Feb;36(1):44-47. doi: 10.1080/10641955.2016.1231317. Epub 2016 Oct 27.

    PubMed 27786578
  • 8. Bloch, M. (2020). In Basile J. (Ed.), Major side effects and safety of calcium channel blockers. UpToDate.

  • Hosie J, Bremner AD, Fell PJ, James IG, Saul PA, Taylor SH. Comparison of early side effects with amlodipine and nifedipine retard in hypertension. Cardiology. 1992;80 Suppl 1:54-9. doi: 10.1159/000175048.

    PubMed 1534716
  • Naito T, Kubono N, Deguchi S, Sugihara M, Itoh H, Kanayama N, Kawakami J. Amlodipine passage into breast milk in lactating women with pregnancy-induced hypertension and its estimation of infant risk for breastfeeding. J Hum Lact. 2015 May;31(2):301-6. doi: 10.1177/0890334414560195. Epub 2014 Dec 1.

    PubMed 25447596

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Amlodipine and NIFEdipine ER in people with Hypertension in Pregnancy, run by Prisma Health-Upstate at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 28 Oct 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 28 Oct 2024). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Length of Stay (time frame: Through hospital stay, on average 2-5 days). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04790279, which also lists 10 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 28 Oct 2024.

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