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Milrinone infusion for cerebral vasospasm in aneurysmal sub-arachnoid haemorrhage patients: a pilot randomised controlled study

Milrinone infusion for cerebral vasospasm in aneurysmal sub-arachnoid haemorrhage patients: a pilot randomised controlled study

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12622001405707
Enrollment
3
Registered
2022-11-02
Start date
2023-05-30
Completion date
2024-03-04
Last updated
2025-09-08

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

Conditions

None listed

Brief summary

Background: Cerebral vasospasm is a relatively common complication following aneurysmal subarachnoid haemorrhage (aSAH), which is associated with significant morbidity and mortality. Current treatment options to treat cerebral vasospasm are limited. Intravenous milrinone infusion is a potentially promising treatment with a relatively low incidence of adverse effects however, has not been explored in a randomized controlled trial. Aim: This will be a pilot study to determine the safety and feasibility of intravenous milrinone infusion as a treatment for cerebral vasospasm following aSAH compared to current standard therapy. Hypothesis: Intravenous milrinone will be a feasible treatment option in the management of cerebral vasospasm following aSAH Methods: The proposed study is a pilot study trialling intravenous milrinone infusion in patients with radiographically confirmed cerebral vasospasm following aSAH. 20 patients will be allocated to receive IV milrinone alongside standard therapy. A control group of 20 patients will receive standard therapy alone. The primary outcome measured will include the dose and duration of milrinone infusion. Secondary outcomes will include the incidence of adverse events, the resolution of cerebral vasospasm on CT or digital-subtraction angiography (DSA) and the vasopressor requirement.

Interventions

The intervention will be continuous intravenous milrinone infusion, for up to 7 days. To commence at time of radiological diagnosis of vasospasm at an initial dose of 0.25mcg/kg/min. Titrated to a maximum of 0.75mcg/kg/min as tolerated. This will be in addition to standard care which will consist of induced hypertension, with fluid therapy and noradrenaline infusion as directed by the treating clinician. Oral nimodipine at a dose of 60mg every 4hours will also be prescribed as part of standard t

The intervention will be continuous intravenous milrinone infusion, for up to 7 days. To commence at time of radiological diagnosis of vasospasm at an initial dose of 0.25mcg/kg/min. Titrated to a maximum of 0.75mcg/kg/min as tolerated. This will be in addition to standard care which will consist of induced hypertension, with fluid therapy and noradrenaline infusion as directed by the treating clinician. Oral nimodipine at a dose of 60mg every 4hours will also be prescribed as part of standard therapy.

Sponsors

Monash Medical Centre
Lead SponsorHospital

Study design

Allocation
Randomised controlled trial
Intervention model
Parallel
Primary purpose
Treatment
Masking
Open (masking not used)

Eligibility

Sex/Gender
All
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Adults Admitted to ICU Radiologically confirmed vasospam

Exclusion criteria

Whole territory cerebral infarction in the vasospasm territory on CT scan Cardiac failure requiring inotropic support Pregnancy Any contraindication to milrinone

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026