A Pilot Trial Evaluating the Effect of Tropisetron on Postoperative Cognitive Dysfunction After Cardiac Surgery

NCT ID: NCT04195204

Last Updated: 2022-01-05

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

UNKNOWN

Clinical Phase

PHASE4

Total Enrollment

72 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-11-01

Study Completion Date

2023-06-30

Brief Summary

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The purpose of this study is to assess the feasibility of a randomized, double-blind, placebo-controlled pilot trial evaluating the effect of tropisetron on prevention of postoperative cognitive dysfunction in patients after cardiac surgery.

Detailed Description

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Postoperative cognitive dysfunction is a common complication during postoperative period,especially in elderly patients. It is characterized by cognitive decline, inattention and abnormal mental status following surgery. The presence of postoperative cognitive dysfunction is independently associated with poor recovery, increased hospital length of stay and increased mortality.

Tropisetron is a 5-HT3A receptor antagonist and is widely used to treat postoperative nausea and vomiting. Previous studies found that tropisetron has positive effect on cognitive function.

We have designed a randomized, double-blind, placebo-controlled trial to determine if tropisetron has a positive effect on postoperative coginitive function in patients after cardiac surgery. Several assessements which are related to delirium, cognitive function, sleep and functional status, blood sample collection and EEG recordings will be involved in the trial. Moreover, we have assumed a few long-term follow-ups.

Given the complexity of the trial, we have decided to implement a pilot trial to assess the feasibility and provide vital data for future formal trial.

Conditions

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Postoperative Cognitive Dysfunction Postoperative Delirium

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

OTHER

Blinding Strategy

DOUBLE

Participants Caregivers

Study Groups

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Tropisetron

Patients allocated to this arm will receive intravenous Tropisetron (5mg) before anesthesia induction and once daily for 7 days after surgery.

Group Type EXPERIMENTAL

Tropisetron

Intervention Type DRUG

Investigators administrated intravenously Tropisetron 5mg before anesthesia and once daily for 7 days after surgery.

Placebo

Patients allocated to this arm will receive an identical volume of normal saline before anesthesia and once daily for 7 days after surgery.

Group Type PLACEBO_COMPARATOR

Placebos

Intervention Type DRUG

Investigators administrated intravenously saline solution as a placebo

Interventions

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Tropisetron

Investigators administrated intravenously Tropisetron 5mg before anesthesia and once daily for 7 days after surgery.

Intervention Type DRUG

Placebos

Investigators administrated intravenously saline solution as a placebo

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. Written consent given
2. Scheduled to undergo elective coronary artery bypass graft surgery under general anesthesia
3. ASA Physical Score I-IV

Exclusion Criteria

1. Inability to give informed consent.
2. Contraindications to tropisetron.
3. Critical preoperative state, including preoperative left ventricular ejection fraction less than 30%, ventricular tachycardia or ventricular fibrillation, preoperative cardiopulmonary resuscitation, preoperative intra-aortic balloon pump (IABP) or mechanical circulatory requirement.
4. History of neuropsychiatric diseases (such as dementia, epilepsy, Parkinson's disease, or schizophrenia).
5. History of antipsychotic drug use.
6. Pre-existing severe cognitive impairment at baseline, defined as a Montreal Cognitive Assessment (MoCA) score below 10
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Beijing Chao Yang Hospital

OTHER

Sponsor Role lead

Responsible Party

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Anshi Wu

Head of Anesthesiology

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Beijing Chaoyang Hospital, Capital Medical University

Beijing, , China

Site Status RECRUITING

Countries

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China

Facility Contacts

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Anshi Wu

Role: primary

+8685231330

Other Identifiers

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29847819

Identifier Type: -

Identifier Source: org_study_id

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