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Can a tiny dose of ketamine make anesthesia more stable?

NCT ID NCT06986109

Symptom relief Sponsor: Sir Ganga Ram Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looked at whether adding a small amount of ketamine to standard propofol anesthesia helps keep patients at a consistent depth of sedation during laparoscopic surgery. 106 adults were randomly assigned to receive either ketamine or a placebo (salt water) alongside propofol delivered by an automated system. The goal was to see if the ketamine group spent more time within the target sedation range.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Ketamine
What this could lead to
If it works, this could lead to more stable anesthesia during surgery, potentially reducing risks from fluctuating sedation levels.
What could go wrong
This is a small, completed study with 106 participants. Earlier research using a different monitoring system found no benefit, so results may not change practice.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

106 people

The number who actually took part.

Started

May 2025

Finished

Apr 2026

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 65 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * ASA physical status I and II. * Patients scheduled for elective laparoscopic surgery with estimated duration greater than 60-minutes. Exclusion Criteria: * Known uncontrolled cardiovascular disease (e.g., hypertension, systolic and diastolic dysfunction) * Liver function abnormality (liver enzymes \>2 times the normal range) * Kidney function abnormality (serum creatinine \>1.4 mg/dl) * Known psychiatric or neurological disorder * Known uncontrolled endocrine disorder (diabetes mellitus, hypothyroidism) * Known allergy or hypersensitivity to the study drug * Recent intake of sedative medication or anti-psychotic medication * Substance abuse * Anticipated need for postoperative ventilation * Refusal to informed consent

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Anesthesia

Contacts and locations

Locations

  • Sir Ganga Ram Hospital

    New Delhi, National Capital Territory of Delhi, 110060, India

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