NCT06452498

Brief Summary

The goal of this study is to find out if pregnant individuals with preterm preeclampsia (PE) who are treated with metformin can stay pregnant for longer, and if this is safe(r) for the mother and child. Preterm PE affects about 1 in 100 pregnant individuals in the Netherlands. Signs of preterm PE can be high blood pressure and protein in the urine in the second half of pregnancy (but before 32-34 weeks of pregnancy). Other symptoms can develop, such as problems with blood clotting and how well the blood cells, liver, lungs, and brain work. The disease can lead to serious complications for both the mother and child. The only way to cure preterm PE is to make sure the child is born, and many times, children have to be delivered (very) early (before 37 weeks). Children born (very) early can suffer from infections, breathing difficulties, and problems in their development. Metformin is a medicine used to treat high blood sugar during and outside of pregnancy. In a previous study in South Africa, women with preterm PE that used metformin were able to safely remain pregnant for an extra week. Similarly, the main goal of the Preeclampsia Intervention NetherLands (PI-NL) study is to see if patients with preterm PE in the Netherlands that use metformin can remain pregnant for a longer time than patients taking a placebo. A placebo is a look-a-like capsule that contains no active ingredients. Researchers, the treating medical team, and participants will not know which participant gets which treatment. In addition, all participants will receive the standard care that all preterm PE patients get.

Trial Health

65
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
180

participants targeted

Target at P25-P50 for phase_3

Timeline
27mo left

Started Aug 2024

Typical duration for phase_3

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress45%
Aug 2024Jul 2028

First Submitted

Initial submission to the registry

May 31, 2024

Completed
11 days until next milestone

First Posted

Study publicly available on registry

June 11, 2024

Completed
2 months until next milestone

Study Start

First participant enrolled

August 1, 2024

Completed
3.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2028

Expected
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2028

Last Updated

June 11, 2024

Status Verified

June 1, 2024

Enrollment Period

3.7 years

First QC Date

May 31, 2024

Last Update Submit

June 5, 2024

Conditions

Keywords

Preterm PreeclampsiaMetforminRCTPlaceboGestational ProlongationTreatmentPregnancyMulticenterPretermHELLP SyndromeHypertensive disorders of pregnancyPreeclampsiaRandomized controlled trial

Outcome Measures

Primary Outcomes (1)

  • Number of days between randomization and delivery

    Prolongation of gestation

    Time between randomization and delivery (up to 37 weeks of gestation)

Secondary Outcomes (3)

  • Number of participants reaching a composite maternal adverse outcome

    Randomization till 90 days postpartum (unless otherwise specified)

  • Number of participants reaching a composite fetal adverse outcome

    Randomization till delivery (up to 37 weeks of gestation)

  • Number of participants reaching a composite neonatal adverse outcome

    Birth till 90 days after birth (unless otherwise specified)

Other Outcomes (11)

  • Maternal individual exploratory outcomes

    Randomization till 90 days postpartum (unless otherwise specified)

  • Fetal individual exploratory outcomes

    Randomization till 90 days postpartum (unless otherwise specified)

  • Neonatal individual exploratory outcomes

    Randomization till 90 days postpartum (unless otherwise specified)

  • +8 more other outcomes

Study Arms (2)

Metformin

EXPERIMENTAL

Metformin 3000 mg divided by three daily doses (3 times 2 capsules of 500 mg; following a step-up schedule) from randomization till delivery, aside from usual preterm preeclampsia care.

Drug: Metformin Hydrochloride

Placebo

PLACEBO COMPARATOR

Placebo, divided by three daily doses (3 times 2 capsules; following a step-up schedule) from randomization till delivery, aside from usual preterm preeclampsia care.

Drug: Placebo

Interventions

Metformin Hydrochloride encapsulated immediate-release tablet of 500 mg, backfilled with cellulose.

Also known as: Metformin, Metformin HCl
Metformin

Capsule filled with cellulose.

Placebo

Eligibility Criteria

Age18 Years - 50 Years
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • All of the following:
  • Aged 18 years or older
  • Singleton pregnancy
  • Gestational age between 23+0 and 31+6 weeks
  • A diagnosis of preterm preeclampsia, defined according to modified International Society for the Study of Hypertension in Pregnancy (ISSHP) classification, including only those who have proteinuria (≥300 mg of protein in a 24-hour urine specimen or a protein-creatinine-ratio \>50 in a single urine sample)
  • Estimated fetal weight \>400 grams
  • No clear indication (maternal or fetal) or intention, by both the treating multidisciplinary team and the patient after counseling, to immediately deliver (or directly after corticosteroid administration) or to terminate the pregnancy otherwise.
  • Ability to understand English or Dutch
  • Ability and willingness to provide written informed consent

You may not qualify if:

  • Any of the following:
  • Current use of metformin or a clinical indication for the use of metformin
  • A decision for immediate delivery (including cases where corticosteroids are administered with planned delivery directly after completion of treatment) or termination of pregnancy (e.g., due to disease severity in the patient combined with a dismal prognosis for the fetus), as made by the treating multidisciplinary team and the parent(s)
  • Contraindication(s) for the use of metformin (e.g., severe renal insufficiency, acute metabolic acidosis, severe liver insufficiency)
  • Use of drugs that might interact with metformin
  • Suspicion of a major fetal anomaly and/or chromosomal abnormality
  • Unable or unwilling to (completely) understand or provide informed consent, due to language, culture, or other barriers

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Pre-EclampsiaPregnancy ComplicationsHELLP SyndromePremature Birth

Interventions

Metformin

Condition Hierarchy (Ancestors)

Hypertension, Pregnancy-InducedFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesObstetric Labor, PrematureObstetric Labor Complications

Intervention Hierarchy (Ancestors)

BiguanidesGuanidinesAmidinesOrganic Chemicals

Study Officials

  • R.C. Painter, Prof, MD, PhD

    Amsterdam UMC

    PRINCIPAL INVESTIGATOR

Central Study Contacts

R.C. Painter, Prof, MD, PhD

CONTACT

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
Subjects, treating clinicians, and trial investigators will be blinded to the allocated treatment. Masking will be removed once the database has been locked, after which data analysis will be undertaken.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Two-arm trial with intervention arm (metformin) and comparator arm (placebo), aside from usual care for all patients.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Prof. dr.

Study Record Dates

First Submitted

May 31, 2024

First Posted

June 11, 2024

Study Start

August 1, 2024

Primary Completion (Estimated)

April 1, 2028

Study Completion (Estimated)

July 1, 2028

Last Updated

June 11, 2024

Record last verified: 2024-06

Data Sharing

IPD Sharing
Will share

The investigators plan to collaborate with researchers doing similar Preeclampsia Intervention (PI) trials.

Shared Documents
STUDY PROTOCOL, SAP, CSR, ANALYTIC CODE