Quelling of Excitotoxicity in Acute Stroke With Ketamine

NCT ID: NCT03223220

Last Updated: 2023-12-18

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Clinical Phase

PHASE2/PHASE3

Total Enrollment

120 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-07-01

Study Completion Date

2027-12-31

Brief Summary

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The investigators plan to undertake a phase II study to investigate the efficacy and side effects of intravenous ketamine to reduce neuroexcitotoxicity, and thus provide neuroprotection in patients diagnosed with acute ischemic stroke.

Detailed Description

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After obtaining informed consent, patients enrolled in the 'study drug' arm of the trial will receive Ketamine (1 mg/ml solution prepared in normal saline) infusion at a rate of 20 mg/h for a period of 24 hours. The infusion will start at a rate of 5 mg/h, and then gradually tapered up during the first 3 hours by 5 mg an hour. Similarly, the infusion rate will be gradually tapered down at a rate of 5 mg/h during the last 3 hours of infusion. The patients randomized to the 'placebo arm' of the trial will receive normal saline infusion at the same rates. In order to prevent the psychogenic adverse effects associated with Ketamine, the patients will be administered Midazolam at a dose of 1 mg IV every 4 hours. Midazolam will also be administered at the same rate to the patients randomized to the placebo arm. Blood Ketamine levels will be measured before starting the treatment, and daily while the infusion is on. While receiving treatment, the patients will be admitted to the telemetry floor in the hospital, on a monitored bed.

Conditions

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Acute Ischemic Stroke

Keywords

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Stroke, Neuroprotection, Ketamine

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Study Drug

Will receive Ketamine infusion, and Midazolam (Versed).

Group Type EXPERIMENTAL

Ketamine

Intervention Type DRUG

IV infusion

Midazolam injection

Intervention Type DRUG

Injection

Placebo

Will receive Normal saline infusion and Midazolam (Versed).

Group Type PLACEBO_COMPARATOR

Normal Saline

Intervention Type OTHER

IV infusion

Midazolam injection

Intervention Type DRUG

Injection

Interventions

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Ketamine

IV infusion

Intervention Type DRUG

Normal Saline

IV infusion

Intervention Type OTHER

Midazolam injection

Injection

Intervention Type DRUG

Other Intervention Names

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Versed

Eligibility Criteria

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Inclusion Criteria

1. All patients who are 18 years or older, presenting or admitted to the study site with acute ischemic stroke, up to 24 hours since their last known well time
2. An MRI evidence of acute ischemic infarct on the diffusion-weighted imaging with ADC correlate
3. Pre-stroke modified Rankin scale of 0-2
4. Patient should be willing to participate in the study by providing a written consent himself/herself or through a proxy.

Exclusion Criteria

1. Eligibility to receive IV Alteplase or intra-arterial thrombectomy/embolectomy
2. Longer than 24 hours since last known well time
3. Pre-stroke modified Rankin scale of 3 or above.
4. Pregnant or lactating females
5. Pre-existing psychiatric illness
6. Intracranial hemorrhage of any type at presentation
7. Seizure at onset of symptoms
8. Sustained uncontrolled hypertension defined as Systolic Blood pressure greater than 185 mmHg or Diastolic Blood Pressure greater than 110 mmHg, despite administration of antihypertensive medications
9. Known hypersensitivity or adverse reaction to prior administration of Ketamine
10. Inability/refusal to provide consent by the patient or through a proxy
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Lower Merion Neurology Research Foundation

OTHER

Sponsor Role lead

Responsible Party

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Sudhir Aggarwal MD, PhD,

Neurologist and Medical Director

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Lankenau Medical Center

Wynnewood, Pennsylvania, United States

Site Status

Countries

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United States

Central Contacts

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Sudhir Aggarwal, MD, PhD

Role: CONTACT

Phone: 4844132572

Email: [email protected]

Facility Contacts

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Sudhir Aggarwal, MD, PhD

Role: primary

Other Identifiers

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LMNRF-001

Identifier Type: -

Identifier Source: org_study_id