Using Nadroparin to Improve Outcomes in Patients with Aneurysmal Subarachnoid Hemorrhage
Official title: Improving Outcome in Subarachnoid Hemorrhage wIth Nadroparine
Run by Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA) · NCT04507178 · Data updated 2026-11-12
This study is testing if giving higher doses of Nadroparin can help patients who have had an aneurysmal subarachnoid hemorrhage live longer and have better recovery outcomes compared to standard doses.
Quick facts
| Phase | Phase 2 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 100 (estimated) |
| Sponsor | Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA) Academic / other |
| Locations | 1 site (Amsterdam) |
| Status | Recruiting |
| Started | February 2, 2022 |
| Main results expected | August 1, 2026 |
| Study ends | April 1, 2027 |
| Registry record updated | January 29, 2025 |
| Trial ID | NCT04507178 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are adults diagnosed with aSAH who have undergone coiling of the aneurysm within 72 hours of the initial hemorrhage.
✕Probably not a fit
Patients with contraindications for low-molecular weight heparin or those who have undergone stent-assisted coiling may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This clinical trial investigates the effects of therapeutic low-molecular weight heparin (Nadroparin) on patients who have experienced an aneurysmal subarachnoid hemorrhage (aSAH). The study aims to determine if higher doses of Nadroparin can reduce the 30-day mortality rate compared to standard prophylactic doses. It also seeks to explore differences in clinical outcomes related to delayed cerebral ischemia (DCI) in these patients. Participants will be monitored for their response to treatment following the coiling of the causative aneurysm.
Why it matters
Potential benefit: If successful, this treatment could significantly lower mortality rates and improve recovery outcomes for patients with aSAH.
How similar studies have gone: Previous studies have indicated potential benefits of therapeutic LMWH in similar patient populations, suggesting this approach may be promising.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * SAH confirmed by CT or lumbar puncture with the causative aneurysm confirmed by CT-A and/or digital subtraction angiography * Coiling of the causative aneurysm within 72 hours of initial SAH * Informed consent within 24 hours after coiling Exclusion Criteria: Stent-assisted coiling * Use of anticoagulant medication post-coiling for other reasons * Contra-indications for LMWH: * Previous history of history of heparin-induced thrombocytopenia * (Suspicion of) active arterial or venous bleeding * Previous history of hemorrhagic diathesis due to coagulation disorders (with the ex-ception of disseminated intravascular coagulation) * Severe hypertension: uncontrolled hypertension with a mean arterial pressure \>135mmHg * Previous history of hypertensive or diabetic retinopathy * Previous history of active infectious endocarditis * Severe renal impairment (creatinine clearance \<30 mL / min) * No proficiency of Dutch or English language
Where it's running
-
Amsterdam University Medical Centers
Amsterdam, Netherlands Recruiting
Study contacts
- Study coordinator: Dagmar Verbaan, PhD
- Email: d.verbaan@amsterdamumc.nl
- Phone: +31205663316
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This will test a minimally invasive dome-protection coiling procedure to prevent re-bleeding in adults who have had a severe aneurysmal subarachnoid hemorrhage.
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.