HELLP syndrome
MONDO:0008585A life-threatening condition that can potentially complicate pregnancy. It is named for 3 features of the condition: H emolysis, E levated L iver enzyme levels, and L ow P latelet levels. It typically occurs in the last 3 months of pregnancy (the third trimester) but can also start soon after delivery. A wide range of non-specific symptoms may be present in women with HELLP syndrome. Symptoms may include fatigue; malaise; fluid retention and excess weight gain; headache; nausea and vomiting; pain in the upper right or middle of the abdomen; blurry vision; and rarely, nosebleed or seizures. The cause of HELLP syndrome is not known, but certain risk factors have been associated with the condition. It is most common in women with preeclampsia or eclampsia. If not diagnosed and treated quickly, HELLP syndrome can lead to serious complications for the mother and baby.The main treatment is to deliver the baby as soon as possible, even if premature. Treatment may also include medications needed for the mother or baby, and blood transfusion for severe bleeding problems.
Also known as: hemolysis, elevated liver enzymes, low platelets in pregnancy, hemolysis-elevated liver enzymes-low platelet count syndrome, hemolysis-elevated liver enzymes-low platelets syndrome, PEE1, PREECLAMPSIA/eclampsia 1, PREG1, hemolysis, elevated liver enzymes, and low platelet count, hemolysis, elevated liver enzymes, lowered platelets
28 clinical trials for this condition and its sub-types.
Follow this condition — get notified about new trialsBroader categories
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Doulas and smart devices team up to tackle postpartum hypertension
Disease control OngoingThis study tests whether adding a specially trained doula, along with home blood pressure and weight monitoring, can improve blood pressure in women who had high blood pressure during pregnancy. About 454 women will be randomly assigned to usual care or the doula program. The goa…
Phase: NA • Sponsor: University of Pittsburgh • Aim: Disease control
Last updated Jun 27, 2026 13:08 UTC
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App aims to slash heart disease risk in moms after complicated pregnancies
Disease control ENROLLING_BY_INVITATIONThis study tests whether a specially designed app can help women who had high blood pressure or diabetes during pregnancy get the recommended heart check-ups after giving birth. About 400 women from Oslo University Hospital will either use the app or receive standard care. The go…
Phase: NA • Sponsor: Oslo University Hospital • Aim: Disease control
Last updated Jun 27, 2026 09:06 UTC
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Mindfulness may lower pregnancy hypertension risk without meds
Prevention OngoingThis study tests whether an 8-week phone-based mindfulness program can reduce stress and blood pressure in 150 pregnant women at risk for hypertensive disorders. Participants will complete daily surveys and wear biosensors to track stress and heart activity. The goal is to see if…
Phase: NA • Sponsor: Lifespan • Aim: Prevention
Last updated Jun 26, 2026 14:36 UTC
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New biobank aims to unlock secrets of infertility and pregnancy
Knowledge-focused ENROLLING_BY_INVITATIONThis study is creating a biobank—a collection of blood samples and health data—to help researchers better understand gynecological disorders, infertility in men and women, and pregnancy-related conditions. Up to 3,000 participants will provide samples at San Raffaele Hospital in …
Sponsor: IRCCS San Raffaele • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:01 UTC