Plain English Summary
Background and study aims
Ischemic placental disease (IPD) is a term for diseases caused by the failure to deliver enough nutrients and oxygen to the placenta during pregnancy. IPD includes preeclampsia (maternal high blood pressure) and intrauterine growth restriction (IUGR, where the unborn baby is smaller than it should be). The only treatment for these complications is delivery, and medication only treats the symptoms. Statins may prove useful in the treatment of IPD. The aim of this study is to investigate the effect of pravastatin on pregnant women with IPD.
Who can participate?
Pregnant women with preeclampsia and/or IUGR
What does the study involve?
Participants are treated with pravastatin and routine examinations are performed while they remain hospitalised. Blood samples are taken every 3 days until delivery. Blood pressure is measured using an automated electronic device daily. A 24h urine sample is collected at admission. An ultrasound is performed weekly. Pregnancy prolongation interval from diagnosis to delivery and the number of fetal/neonatal deaths are compared with a sample of women hospitalised during the previous 5 years who were not treated with pravastatin.
What are the possible benefits and risks of participating?
Statins may prove useful in the treatment of IPD, and participants may benefit from improved pregnancy outcomes. Regarding risks, the effects of pravastatin on pregnancy are still unknown, but recent studies have reported that statins like pravastatin do not cross the placenta and do not affect the baby’s development.
Where is the study run from?
Aristotle University of Thessaloniki (Greece)
When is the study starting and how long is it expected to run for?
June 2017 to December 2020
Who is funding the study?
Aristotle University of Thessaloniki (Greece)
Who is the main contact?
Dr Stamatios Petousis
Effect of PRAvastatin in Pregnancies complicated by Ischemical Placental Disease: prospective observational study
E PRA PIPD
The aim of this study is to investigate the effect of pravastatin administration in pregnant women with placental insufficiency and specifically on the latency period of pregnancy, on the levels of endothelial factors in the blood and also on maternal and neonatal morbidity and mortality.
Not provided at time of registration
Longitudinal observational study
Primary study design
Secondary study design
Patient information sheet
Not available in web format, please use the contact details to request a patient information sheet
Preeclampsia (PE), intrauterine growth restriction (IUGR) and placental abruption
Following the diagnosis of placental insufficiency, either at the outpatient clinic level or following a referral from a private practice to the high-risk pregnancy clinic and confirmation by the head of the Maternal Fetal medicine unit, Prof Mamopoulos, the patient will be offered participation in the study. In case of acceptance, 20 mg of pravastatin will be administered orally. The patient will remain hospitalised and routine examinations including clinical assessment, laboratory tests and ultrasound scans will be performed according to the clinic’s protocols. For the purposes of the study, peripheral blood samples will be taken every 3 days until delivery and these will be centrifuged and stored in a freezer at -80o Celsius.
For every pregnant woman enrolled in the study, a full gynaecologic, obstetric, personal and family history will be recorded. Furthermore, all participants will be examined as follows:
1. Blood pressure using an automated electronic device (daily)
2. Protein in 24h collected urine (at admission)
3. Blood tests every 3 days (full blood count, urea, creatinine, tranaminases, glucose, K,Na, INR, fibrinogen, PT, aPTT) and urine protein
4. Ultrasound performed weekly, at which the estimated fetal weight, umbilical artery PI, middle cerebral artery PI, PI in the ductus venosus, uterine arteries PI and the max vertical pocket of amniotic fluid will be recorded
Primary outcome measure
1. Pregnancy prolongation interval from diagnosis to delivery is estimated between day of entrance in the trial (which is the first day of pravastatin administration) and day of pregnancy delivery
2. Intrauterine or neonatal death in fetuses/neonates is measured using medical records from the day of entrance in the trial (which is the first day of pravastatin administration) until the 28th day of neonatal life
Secondary outcome measures
1. MAP (SAP and DAP) is measured using blood pressure measurement at 1 week
2. PI values of the Umbilical, MCA, DV uterine arteries are measured using obstetrical ultrasound (brandname GE Voluson S10) twice a week, namely the 3rd and 7th day of every consecutive week (days 0,3,7,10, 14…) until the day of pregnancy delivery
3. Endothelial parameters values, especially endogline and sflt-1, measured using Western blot between the start of therapy and serial measurements until delivery as previously mentioned
4. Neonatal morbidity parameters, more specifically respiratory distress syndrome, cerebral bleeding, sepsis and necrotic enterocolitis, are measured using neonatal medical records during Neonatal Intensive Care Unit (NICU) hospitalization from the day of NICU admission until NICU dischargement
Overall trial start date
Overall trial end date
Reason abandoned (if study stopped)
Participant inclusion criteria
1. Pregnant women with PE and/or IUGR diagnosed between 20 and 34 gestational weeks, irrespective of maternal age.
2. PE will be defined as a newly onset hypertension in pregnancy (SAP > 140 mm Ηg or DAP > 90 mm Ηg) and significant proteinuria (>300mg/24h)
3. IUGR is defined as an estimated fetal weight <10th percentile with associated findings of placental insufficiency as a high resistance in the uterine arteries or in the umbilical artery (Pulsatility Index>95th percentile) or reduced amniotic fluid (maximum vertical pocket < 2 cm)
The control group:
1. Historical sample of women that were hospitalised during the 5 previous years in the Maternal fetal medicine unit of the 3rd Obstetrics and Gynecology University clinic
2. Pravastatin not used in treating the disease
3. Controlled for maternal age and the estimated fetal weight percentile.
Target number of participants
Based on the prolongation interval as the main outcome and considering previous clinical data where the average interval was 21 + 9 days, and accepting a 7 days interval as clinicoally significant, for a statistical significance of 0.05 and statistical pwer of 90%, 35 women per group are needed (70 cases overall).
Participant exclusion criteria
1. Pre-existing hypertension
3. Liver or connective tissue disease
4. Uterine malformations
5. Twin pregnancy
6. Fetal chromosomal abnormalities
Recruitment start date
Recruitment end date
Countries of recruitment
Trial participating centre
Aristotle University of Thessaloniki, Greece
3rd Department of Obstetrics and Gynaecology Medical School Faculty of Health Sciences Konstantinoupoleos 49
Aristotle University of Thessaloniki
Funding Body Type
private sector organisation
Funding Body Subtype
Results and Publications
Publication and dissemination plan
Planned publication in a high-impact peer reviewed journal.
IPD sharing statement
The current data sharing plans for the current study are unknown and will be made available at a later date.
Intention to publish date
Participant level data
To be made available at a later date
Basic results (scientific)