Metformin for the prolongation of pregnancy in preterm preeclampsia: the PI-NL trial

2023-510382-10-00 Protocol U1111-1303-8616 Therapeutic confirmatory (Phase III) Ongoing, recruiting

Start 25 Aug 2025 · Status Ongoing, recruiting · 1 EU/EEA countries · 8 sites · Protocol U1111-1303-8616

Overview

Sponsor-declared trial summary

Phase Therapeutic confirmatory (Phase III)
Status Ongoing, recruiting
Participants planned 180
Countries 1
Sites 8

HELLP syndrome

To assess whether metformin, compared to placebo, prolongs gestation (for at least 5 more days) in pregnant individuals with preterm PE.

Key facts

Sponsor
Amsterdam UMC
Participant type
Patients
Age range
18-64 years
Gender
Female
Therapeutic area
Diseases [C] - Female Urogenital Diseases and Pregnancy Complications [C13]
Trial duration
25 Aug 2025 → ongoing
Decision date (initial)
2024-09-24
Transition trial
No
Low-intervention
No
Rare-disease indication
No
Vulnerable population
Yes
Funding sources
ZonMw

External identifiers

EU CT number
2023-510382-10-00
WHO UTN
U1111-1303-8616
ClinicalTrials.gov
NCT06452498

Trial design

CTIS Part I — objectives, methods, condition coding

Main objective

Scope: Therapy

To assess whether metformin, compared to placebo, prolongs gestation (for at least 5 more days) in pregnant individuals with preterm PE.

Secondary objectives 1

  1. To determine whether metformin, compared to placebo, can improve composite maternal, fetal, and neonatal outcomes.

Conditions and MedDRA coding

HELLP syndrome

VersionLevelCodeTermSystem organ class
20.0 LLT 10036488 Pre-eclampsia or eclampsia superimposed on pre-existing hypertension complicating pregnancy childb 10036585
20.0 HLT 10020776 Hypertension associated disorders of pregnancy 10036585
20.0 LLT 10071421 Fetal exposure during pregnancy 10022117
20.0 PT 10036485 Pre-eclampsia 100000004868

Study design 1 period

#TitleAllocationBlindingRoles blindedArms
1 Treatment phase
Metformin vs placebo
Randomised Controlled Double [{"id":186707,"code":5,"name":"Carer"},{"id":186705,"code":1,"name":"Subject"},{"id":186706,"code":2,"name":"Investigator"}] Arm 1: Metformin
Arm 2: Placebo

Eligibility criteria

Principal inclusion / exclusion criteria as submitted by sponsor

Inclusion criteria 8

  1. Aged 18 years or older
  2. Singleton pregnancy
  3. Gestational age between 23+0 and 31+6 weeks
  4. Estimated fetal weight >400 grams
  5. There is 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
  6. A diagnosis of PE, according to PI-NL criteria
  7. Ability to understand English or Dutch
  8. Ability and willingness to provide written informed consent

Exclusion criteria 8

  1. Aged <18 years
  2. Multiple pregnancy
  3. Current use of metformin or a clinical indication for the use of metformin
  4. 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)
  5. Contraindication(s) for use of metformin
  6. Use of drugs that might interact with metformin
  7. Suspicion of a major fetal anomaly and/or chromosomal abnormality
  8. Unable or unwilling to (completely) understand or provide informed consent, due to language, culture, or other barriers

Endpoints

Primary and secondary outcome measures (English text)

Primary endpoints 1

  1. Gestational prolongation (in days)

Secondary endpoints 3

  1. Combined endpoint of maternal adverse outcome, consisting of maternal death (death during pregnancy or within 42 days of delivery), eclampsia, pulmonary edema, severe renal impairment, cerebrovascular accident, placental abruption, and/or liver hematoma or rupture.
  2. Combined endpoint of fetal adverse outcome, consisting of intrauterine fetal death (IUFD, including intrapartum death), suboptimal fetal condition based on the heart rate pattern on the CTG (as judged by the treating clinician), and/or fetal growth restriction (FGR)
  3. Combined endpoint of neonatal adverse outcome, consisting of neonatal death (within 28 days of birth), intraventricular hemorrhage (grade III or IV), retinopathy of prematurity requiring treatment, necrotizing enterocolitis (grade II or higher), bronchopulmonary dysplasia, neonatal sepsis, and/or cystic periventricular leukomalacia (grade II or higher)

Investigational products

Investigational medicinal products (IMPs), comparators, placebo, auxiliary

Test 1

Metformine HCl 500 mg Teva, filmomhulde tabletten

PRD2381266 · Product

Active substance
Metformin Hydrochloride
Pharmaceutical form
FILM-COATED TABLET
Route of administration
ORAL USE
Max daily dose
3000 mg milligram(s)
Max total dose
294000 mg milligram(s)
Max treatment duration
98 Day(s)
Authorisation status
Authorised
ATC code
A10BA02 — METFORMIN
Marketing authorisation
RVG 111960
MA holder
TEVA NEDERLAND B.V.
MA country
Netherlands
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
Yes
Modification description
Overencapsulation for blinding purposes

Placebo 1

Microcrystalline cellulose

N/A · Product

Other product name
N/A
Pharmaceutical form
N/A
ATC code
N/A — N/A
Marketing authorisation
N/A
MA holder
N/A
MA country
Iceland
Paediatric formulation
No

Sponsors and contacts

Sponsor organisations, regulatory contacts, third parties

Amsterdam UMC

Sponsor organisation
Amsterdam UMC
Address
De Boelelaan 1117
City
Amsterdam
Postcode
1081 HV
Country
Netherlands

Scientific contact point

Organisation
Amsterdam UMC
Contact name
PI-NL Research Team

Public contact point

Organisation
Amsterdam UMC
Contact name
PI-NL Research Team

Locations

1 EU/EEA country · 8 investigational sites

By country

CountryMS statusPlanned subjectsSites
Netherlands Ongoing, recruiting 180 8
Rest of world 0

Investigational sites

Netherlands

8 sites · Ongoing, recruiting
Academisch Ziekenhuis Maastricht
Verloskunde & Gynaecologie, P Debyelaan 25, 6229 HX, Maastricht
Universitair Medisch Centrum Utrecht
Verloskunde & Gynaecologie, Heidelberglaan 100, 3584 CX, Utrecht
Isala Klinieken Stichting
Verloskunde & Gynaecologie, Dokter Van Heesweg 2, 8025 AB, Zwolle
Erasmus Universitair Medisch Centrum Rotterdam (Erasmus MC)
Verloskunde & Gynaecologie, Dr. Molewaterplein 60, 3015 GJ, Rotterdam
Universitair Medisch Centrum Groningen
Verloskunde & Gynaecologie, Hanzeplein 1, 9713 GZ, Groningen
Maxima Medisch Centrum
Verloskunde & Gynaecologie, De Run 4600, 5504 DB, Veldhoven
Radboud universitair medisch centrum / RADBOUDUMC
Verloskunde & Gynaecologie, Geert Grooteplein Zuid 10, 6525 GA, Nijmegen
Amsterdam UMC Stichting
Verloskunde & Gynaecologie, De Boelelaan 1117, 1081 HV, Amsterdam

Country notifications

Trial-start, recruitment-start, end and early-termination notifications submitted per Member State

Country Trial startTrial end Recruitment startRecruitment end Early termination
Netherlands 2025-08-25 2025-09-19

Results and documents

Annex IV summary of results, Annex V layperson summary, and all documents registered in CTIS for this trial

Documents 8 files

Public protocol annexes, IB summaries, regulatory submissions and post-authorisation documents registered in CTIS.

TypeTitleVersion
Protocol (for publication) D1_Protocol 2023-510382-10-00 1.2
Recruitment arrangements (for publication) K1_Recruitment arrangements 1
Recruitment arrangements (for publication) K2_Recruitment material Leaflet 1
Recruitment arrangements (for publication) K2_Recruitment material Movie 1
Recruitment arrangements (for publication) K2_Recruitment material Text 1
Subject information and informed consent form (for publication) L1_SIS and ICF 3.0
Summary of Product Characteristics (SmPC) (for publication) E2_SmPC Metformin 1
Synopsis of the protocol (for publication) D1_Protocol Synopsis NL 2023-510382-10-00 1

Application history

3 submissions — initial application plus substantial / non-substantial modifications

#TypeCodeSubmittedReference MSConclusionDecision date
1 INITIAL IN 2024-06-20 Netherlands Acceptable with conditions
2024-09-20
2024-09-24
2 SUBSTANTIAL MODIFICATION SM-1 2025-05-08 Netherlands Acceptable
2025-08-06
2025-08-06
3 NON SUBSTANTIAL MODIFICATION NSM-1 2026-05-18 Netherlands Acceptable
2025-08-06
2026-05-18