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Randomized ControllEd PhaSe-II Clinical TriAl of Methylene Blue veRsus Placebo in Cardiac ArresT (RESTART) Study

Randomized ControllEd PhaSe-II Clinical TriAl of the effect of Methylene Blue veRsus Placebo on Neurological Status in Cardiac ArresT - RESTART Study

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12625000828426
Enrollment
0
Registered
2025-08-01
Start date
2026-02-20
Completion date
2027-12-31
Last updated
2026-03-02

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

Conditions

None listed

Brief summary

This prospective randomized controlled study of patients who are successfully resuscitated following cardiac arrest patients will receive either MeB or placebo, in addition to standard medical care. The study will assess the impact of MeB on overall survival, neurological outcomes, and hemodynamics. We hypothesise that MeB will be safe and effective in improving markers of neuronal injury, with a possible translation to improved mortality. The findings will inform future large-scale research aimed at improving outcomes in this currently highly morbid condition.

Interventions

Eligible patients will be randomised in a 1:1 fashion to receive EITHER Methylene blue (MeB) or Placebo: The study medication will be administered by a registered nurse in the emergency department with the administration recorded on the electronic medical record (EMR) for hospital & study purposes Methylene Blue (PROVEBLUE 50mg/10mL): • 2mg/Kg of MeB will be administered over a 5-minute IV push (with the IV flushed using 10mL of normal saline, contained within an opaque syringe) • Following ad

Eligible patients will be randomised in a 1:1 fashion to receive EITHER Methylene blue (MeB) or Placebo: The study medication will be administered by a registered nurse in the emergency department with the administration recorded on the electronic medical record (EMR) for hospital & study purposes Methylene Blue (PROVEBLUE 50mg/10mL): • 2mg/Kg of MeB will be administered over a 5-minute IV push (with the IV flushed using 10mL of normal saline, contained within an opaque syringe) • Following administration of the bolus, an infusion will be commended at a rate of 0.25mg/kg/hour for a total of 12 hours (opaque bag)

Eligible patients will be randomised in a 1:1 fashion to receive EITHER Methylene blue (MeB) or Placebo: The study medication will be administered by a registered nurse in the emergency department with the administration recorded on the electronic medical record (EMR) for hospital & study purposes Methylene Blue (PROVEBLUE 50mg/10mL): • 2mg/Kg of MeB will be administered over a 5-minute IV push (with the IV flushed using 10mL of normal saline) • Following administration of the bolus, an infusi

Eligible patients will be randomised in a 1:1 fashion to receive EITHER Methylene blue (MeB) or Placebo: The study medication will be administered by a registered nurse in the emergency department with the administration recorded on the electronic medical record (EMR) for hospital & study purposes Methylene Blue (PROVEBLUE 50mg/10mL): • 2mg/Kg of MeB will be administered over a 5-minute IV push (with the IV flushed using 10mL of normal saline) • Following administration of the bolus, an infusion will be commended at a rate of 0.25mg/kg/hour for a total of 12 hours

Sponsors

The Alfred Hospital
Lead SponsorHospital

Study design

Allocation
Randomised controlled trial
Intervention model
Parallel
Primary purpose
Treatment
Masking
Open (masking not used) (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

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

Inclusion criteria

• Aged 18 and older • Cardiac arrest of non-traumatic etiology • Shockable first detected rhythm (ventricular fibrillation or ventricular tachycardia) • Total low-flow time (estimated time from cardiac arrest to return of spontaneous circulation (ROSC)) of no greater than 30 minutes. • Randomization within 30 minutes of initial ROSC • Systolic blood pressure <120mmHg or receiving vasoactive medication for hemodynamic support.

Exclusion criteria

• Death considered imminent • Known to be pregnant • Known use of selective serotonin re-uptake inhibitor (SSRI) • Known end stage renal failure • Known glucose-6-phosphate dehydrogenase (G6PD) deficiency

Outcome results

None listed

Source: ANZCTR · Data processed: Mar 14, 2026