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PREPARE II

PREdiction of Pre-eclampsia and AdveRse eventsII - PREPARE II

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
NL-OMON
Registry ID
NL-OMON57951
Enrollment
470
Registered
2025-02-07
Start date
2025-10-13
Completion date
Unknown
Last updated
2026-04-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Pre-eclampsia Pregnancy-induced hypertension Hypertensive disorders of pregnancy Pregnancy-related hypertension with proteinuria Gestational hypertension with proteinuria Eclampsia (if seizures occur) Toxemia, Pre-eclampsia

Interventions

The intervention is an algorithm based on the urine protein/creatinine ratio (PCr) + sFlt-1/PlGF ratio, along with a telemonitoring strategy. The algorithm incorporates a PCr cut-off of 30 (mg/mmol) a
intermediate risk includes telemonitoring
high risk necessitates immediate admission.

Sponsors

Leids Universitair Medisch Centrum
Lead Sponsor

Eligibility

Age
16 Years to 64 Years

Inclusion criteria

Inclusion criteria: Age =16 yearsSingleton pregnancyGestational age between 20 weeks + 0 days and 36 weeks + 6 daysClinical suspicion of pre-eclampsia, defined as at least one of the following (based on ISSHP 2021 and NVOG 2019 guidelines):a. New-onset hypertension:Systolic blood pressure =140 mmHg and/orDiastolic blood pressure =90 mmHg (measured using validated equipment and standard clinical procedures)b. Worsening of pre-existing hypertension:An increase of =10 mmHg in systolic and/or diastolic blood pressure compared to baseline, orIncreased need for antihypertensive medication, as assessed by the treating physician based on clinical contextc. New-onset proteinuria, defined as:Dipstick proteinuria =2+ Note: The protein-to-creatinine ratio (PCR) is not part of the initial inclusion criteria and will be assessed after inclusion for risk stratification and care planning.d. Worsening of known proteinuria, defined as:An increase of =50% in the protein-to-creatinine ratio compared to a previous measurement Note: This applies to patients with known proteinuria (e.g., due to chronic kidney disease), where it is unclear whether the increase is due to the underlying condition or superimposed pre-eclampsia.e. Other clinical signs or symptoms suggestive of pre-eclampsia, such as:Epigastric pain (especially in the right upper quadrant)Severe oedema or sudden swelling of the face, hands, or feetHeadache or visual disturbances (e.g., blurred vision, scotomas)Sudden weight gain >1 kg per week (in the third trimester)Thrombocytopenia (platelet count <150 × 10?/L)Elevated liver enzymes (ALT >41 U/L or AST >40 U/L)(Suspected) fetal growth restriction (FGR) based on clinical or ultrasound findings

Exclusion criteria

Exclusion criteria: Subjects are excluded from participation if they meet any of the following exclusion criteria:1) Confirmed pre-eclampsia at time of enrolmentNote: Women with a confirmed diagnosis of pre-eclampsia prior to presentation are excluded. Those with initial symptoms or findings suggestive of pre-eclampsia, but without a formal diagnosis, are eligible. A diagnosis made after randomization is considered part of the clinical course and a study outcome.2)  Any sFlt-1/PlGF ratio measured this pregnancy3)  Previous participation in the PREPARE II study in current or prior pregnancy4)  Gestational age =37 weeks5)  Multiple pregnancy6)  Insufficient understanding of Dutch or English language7) Inability to give informed consent

Design outcomes

Primary

MeasureTime frame
The primary outcome is the occurrence of pre-eclampsia-related healthcare utilization in first week after testing. 

Secondary

MeasureTime frame
Secondary outcomes are maternal/perinatal adverse events, total healthcare usage, pre-eclampsia diagnosis, quality of life, and productivity losses. A cost-effectiveness analysis from a societal perspective will be performed.

Countries

Netherlands

Contacts

Public ContactA Peters

Leids Universitair Medisch Centrum

a.peters@lumc.nl0652428262

Outcome results

None listed

Source: NL-OMON (via WHO ICTRP) · Data processed: Apr 17, 2026