Skip to content

The STEP-Mag Trial

Simplified Treatment for Eclampsia Prevention using Magnesium sulfate: A phase III, randomized, open label, active-controlled, multicountry, multicentre, non-inferiority trial of simplified magnesium sulfate regimen for eclampsia prophylaxis.

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
PACTR
Registry ID
PACTR202112816270738
Enrollment
12000
Registered
2021-12-07
Start date
2022-03-01
Completion date
Unknown
Last updated
2026-08-03

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

Conditions

Pregnancy and Childbirth Preeclampsia

Interventions

Magnesium Sulphate
Magnesium sulphate

Sponsors

World Health Organization
Lead Sponsor

Eligibility

Sex/Gender
Female

Inclusion criteria

Inclusion criteria: To be eligible for inclusion into this trial, the women must fulfill all of the following criteria: 1. Be admitted with a diagnosis of pre-eclampsia and with clinical or laboratory indication(s) for magnesium sulfate treatment, as defined by any of the following: two readings of systolic blood pressure =160 mm Hg, or diastolic blood pressure =110 mm Hg along with =2+ proteinuria on urine dipstick; or the presence of symptoms, signs or laboratory findings suggestive of severe disease such as headache, visual disturbances, upper abdominal pain, pulmonary oedema, nausea and vomiting, hyperreflexia or clonus, elevated liver enzymes, raised serum creatinine, or thrombocytopenia. Women with HELLP syndrome, a severe form of pre-eclampsia characterized by Haemolysis, Elevated Liver enzymes, and Low Platelets (<100 cells/mcl) will be included if there is no clinical contraindication to IM injection. 2. Have not yet given birth but birth is planned or expected within the next 24 hours, or have given birth within the last 24 hours. 3. Provide written informed consent before any trial-related procedures are carried out.

Exclusion criteria

Exclusion criteria: Women are not eligible if they fulfill any of the following exclusion criteria: 1. Unable or unwilling to give informed consent (because the woman is too distressed or not capable to understand, confirm and give informed consent due to emergency or health condition, or does not wish to be randomized for whatever reason). 2. Are non-emancipated minors (as per local regulations) without a guardian. 3. History of hypersensitivity to magnesium sulfate. 4. Serious cardiovascular disorders (WHO classification III or IV or acute heart failure). 5. Serious hepatic (encephalopathy or coma) or renal disease. 6. History of epilepsy. 7. Myasthenia gravis or any muscular dystrophies. 8. Coagulopathy. 9. Have previously received magnesium sulfate for eclampsia prevention in the current pregnancy. 10. Planned to receive magnesium sulfate regimen other than the regimens specified for the trial on account of other medical indication(s) (e.g. fetal neuroprotection). 11. Known oliguria (<400mL urine in 24 hours) at the time of admission.

Design outcomes

Primary

MeasureTime frame
Maternal eclamptic seizure (defined as occurrence of convulsions in a woman with features of pre-eclampsia that is unrelated to other neurological conditions)

Secondary

MeasureTime frame
Composite endpoint describing events related to maternal toxicity and consisting of one or more of the following: absent/reduced tendon reflexes, respiratory depression, use of calcium gluconate to combat perceived/confirmed maternal toxicity, or stopping/reduced magnesium sulfate treatment due to perceived/confirmed maternal toxicity

Countries

Kenya

Contacts

Public ContactOmondi Ogutu

Associate Professor

oomogutu@gmail.com+254722510215

Outcome results

None listed

Source: PACTR (via WHO ICTRP) · Data processed: Aug 9, 2026