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Condition (MeSH)

HELLP Syndrome

ClinicalTrials.gov lists 34 trials for HELLP Syndrome or a narrower condition beneath it.

MeSH D017359 Urogenital Diseases C12 Listed by Orphanet as a rare disease
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Phase 1 Phase 1 1 Phase 2 Phase 2 1 Phase 2/3 Phase 2/3 1 Phase 3 Phase 3 4 Phase 4 Phase 4 4 Not applicable Not applicable 4 Observational Observational 19 Phase 1 Phase 1 1 Phase 2 Phase 2 1 Phase 2/3 Phase 2/3 1 Phase 3 Phase 3 4 Phase 4 Phase 4 4 Not applicable Not applicable 4 Observational Observational 19

Trials per phase

34 of the 34 trials are tagged with HELLP Syndrome itself; the rest are tagged with a narrower condition beneath it.

Get the HELLP Syndrome report as a PDF

The PDF carries up to 50 rows of each section, where the page shows the first few, with the sources listed. Enter a work email and confirm it from the message we send, and the report follows by email.

When did HELLP Syndrome trials start? (16)

Shown in this order: most recent first, 1990 onwards. 2026 is partial: trials registered with a 2026 start date so far, not a full year.

Trials over time, by phase

  • Phase 1
  • Phase 2
  • Phase 2/3
  • Phase 3
  • Phase 4
  • Not applicable
  • Observational

Top of scale: 5

1991: 1 trials (Phase 3 1) 2003: 2 trials (Observational 1, Phase 3 1) 2008: 1 trials (Observational 1) 2009: 1 trials (Phase 3 1) 2011: 1 trials (Phase 4 1) 2013: 1 trials (Observational 1) 2014: 2 trials (Observational 2) 2015: 4 trials (Observational 3, Phase 2/3 1) 2016: 5 trials (Observational 2, Not applicable 1, Phase 4 2) 2017: 3 trials (Observational 2, Not applicable 1) 2018: 1 trials (Observational 1) 2019: 1 trials (Observational 1) 2021: 3 trials (Not applicable 1, Phase 2 1, Phase 1 1) 2023: 2 trials (Observational 2) 2024: 2 trials (Observational 1, Phase 3 1)

Trials registered with a start date in each year, 1990 onward, stacked by phase (complete years only; the current partial year is in the table's notes). The table below lists the same counts, most recent years first.

Trials started per year
Year Trials started
2026 (partial year) 4
2024 2
2023 2
2021 3
2019 1
2018 1
2017 3
2016 5
2015 4
2014 2

No forecast is made for this condition: it averages 1.6 trial starts a year over the five years to September, under the 5 a year the method needs.

Recruitment duration, a model prediction: none of the 34 trials evaluated at the 2026-10-09 snapshot is predicted and still running. Source: ClinicalTrials.gov / AACT (CTTI), public domain.

What phase are HELLP Syndrome trials in? (7)

Shown in this order: phase order.

Show the trials by phase as a table
Trials by phase
Phase Trials
Phase 1 1
Phase 2 1
Phase 2/3 1
Phase 3 4
Phase 4 4
Not applicable 4
Observational 19

How many HELLP Syndrome trials are recruiting? (6)

Shown in this order: the order a trial moves through, from not yet recruiting to unknown.

Trials by recruitment status
Status Trials
Not yet recruiting 4
Recruiting 4
Completed 17
Terminated 2
Withdrawn 1

Status as registered on ClinicalTrials.gov. Each trial is counted once.

Which lead sponsors run the most HELLP Syndrome trials? (2)

Shown in this order: most trials first. Lead sponsors the registry classes as industry, NIH, US federal, other government or network. A hospital or university the registry files as government can appear here. Sponsors it classes as academic or other are shown on the full page, because that class cannot separate an institution from a named investigator.

Lead sponsors
Sponsor Trials
Africa Clinical Research Network (ACRN) 1
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) 1

Which drugs are being tested for HELLP Syndrome? (1)

Shown in this order: most trials first. One row per drug, matched to a single molecule under all its names, ranked by number of trials.

Drugs tested
Drug Trials
Eculizumab 2

Interventions as named in the registry (14)

Shown in this order: most trials first.

Interventions as named in the registry
Drug Trials
Dexamethasone/Dexamethasone acetate 2
Double distilled water 1
Bloodwork, baseline 1
Ibuprofen 2% 1
General Anesthesia 1

These are the names sponsors entered on ClinicalTrials.gov that we have not matched to a single molecule. Some are drugs under a brand or code name; others are procedures, doses or arm labels.

Which serious adverse events do HELLP Syndrome trials report? (3)

Shown in this order: most subjects affected first. Subjects affected summed across trials, a cross-trial signal, not a rate.

Serious adverse events in this condition's trials
Adverse event Subjects affected Trials
Inpatient readmission 3 1
Acute postpartum elevation of liver function tests 1 1
Neonatal death 1 1

Which publications cover HELLP Syndrome? (29)

Shown in this order: major-topic papers first, then newest, then most linked to trials.

Publications
Publication Journal Year Major topic
HELLP Syndrome-Holistic Insight into Pathophysiology. Medicina (Kaunas, Lithuania) 2022 Yes
Molecular Advances in Preeclampsia and HELLP Syndrome. International journal of molecular sciences 2022 Yes
Prevalence of hypertensive disorders during pregnancy in France (2010-2018): The Nationwide CONCEPTION Study. Journal of clinical hypertension (Greenwich, Conn.) 2021 Yes
Pre-eclampsia-like syndrome induced by severe COVID-19: a prospective observational study. BJOG : an international journal of obstetrics and gynaecology 2020 Yes
Blood pressure after PREeclampsia/HELLP by SELF monitoring (BP-PRESELF): rationale and design of a multicenter randomized controlled trial. BMC women's health 2020 Yes

Prevalence (3)

Shown in this order: jurisdiction, then disease name. Orphanet observation for the mapped ORPHA concept; the mapping relation column says whether that concept is exactly this condition or broader or narrower.

Prevalence
Orphanet disease Type Class Geography Jurisdiction Mapping relation
HELLP syndrome Point prevalence Unknown Worldwide Not stated Unspecified
HELLP syndrome Point prevalence Unknown Worldwide Not stated Exact
HELLP syndrome Point prevalence Unknown Worldwide Not stated Exact

Rare-disease identity (2)

Shown in this order: exact, broader, narrower, other.

Rare-disease identity
Orphanet disease ORPHA code Relation Source
HELLP syndrome 244242 Exact Orphadata Science knowledge files, Product 1
HELLP syndrome 244242 Exact Orphanet Rare Disease Ontology (ORDO)

Not on this page

Not measured: delivery record.

Checked, with nothing recorded for this condition: sub-conditions in mesh.

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