Study on the Use of Low Dose Ketamine After Gastric Bypass and Gastrectomy

March 2, 2020 updated by: NYU Langone Health

Randomized, Double-blind, Placebo Controlled Study on the Effect of a Single Postoperative Administration of Low Dose Ketamine After Gastric Bypass and Gastrectomy Surgeries

This is a randomized, double-blind, placebo-controlled, two-arm parallel, single-center study. One hundred subjects (50 in each arm) will be enrolled. Subjects, between the ages 18 and 65, undergoing laparoscopic gastric bypass or sleeve gastrectomy will be recruited and consented during the preadmission visit prior to surgery.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This is a randomized, double-blind, placebo-controlled, two-arm parallel, single-center study. One hundred subjects (50 in each arm) will be enrolled. Subjects, between the ages 18 and 65, undergoing laparoscopic gastric bypass or sleeve gastrectomy will be recruited and consented during the preadmission visit prior to surgery. Eligible subjects will be randomized to one of the two treatment group in a 1:1 ratio to receive either IV ketamine (0.4mg/kg) or matching placebo. Both men and women will be recruited, and there is no limitation as to racial and ethnic origin. In the PACU, patients will receive either 0.4mg/kg IV ketamine or placebo. All patients will also receive standard post-anesthetic monitoring and care, as well as routine care after transfer out of the PACU. Patients are followed until the date of discharge, and endpoints (see below) are collected from patient reports as well as from medical charts. During their hospital stay (and once after their discharge from the hospital), patients will fill out five questionnaires which provide estimates of their postoperative pain control, mood and function, and quality of postsurgical recovery. An additional component of the study, which is entirely optional, is to obtain patient serum samples (about two teaspoons) in the operating room and 15 minutes and 4 hours after ketamine infusion. The investigators will use these samples to assess levels of IL-1, IL-6, TNF-α, and BDNF, which are markers for pain. In addition, with patient consent, the investigators will also store serum samples for future research use to measure other cytokines and neurotrophic factors and molecular markers associated with pain and depression.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
90

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2
  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • New York
      • New York, New York, United States, 10016
        • NYU Langone Medical Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. Adults, >18 years, <65 years, who will undergo gastric bypass or sleeve gastrectomy.

  2. Subject is non-lactating and is either:

    • Not of childbearing potential; or
    • Of childbearing potential but is not pregnant at time of baseline as determined by pre-operative pregnancy testing.
  3. Subject is ASA physical status 1, 2, or 3.
  4. Subject who is deemed medically stable

Exclusion Criteria:

  1. <18 years of age; >65 years of age
  2. Pregnant or breastfeeding
  3. Does not speak or understand English (the study forms used are copy-righted in English)
  4. Cognitively impairment (by history) or clinical signs of altered mental status
  5. History of misuse or abuse of ketamine
  6. History of chest pain or chest pain in the PACU
  7. Use of a medication that interferes with metabolism of ketamine within the last 24 hours
  8. A diagnosis of schizophrenia and/ or a history of chronic antipsychotic medication use
  9. History of head trauma
  10. History of intracranial mass or hemorrhage
  11. History of stroke
  12. History of cardiac arrhythmia
  13. Subject for whom ketamine is contraindicated
  14. Unwillingness to give informed consent according to HIC guidelines

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Placebo Comparator: treatment/placebo
saline infusion
Other: Placebo Comparator
0.4mg/kg infusion
Other Names:
  • Saline Infusion
Experimental: treatment
ketamine (0.4mg/kg)
Drug: Ketamine
0.4mg/kg infusion
Other Names:
  • ketalar

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Change in Pain Scores
Time Frame: Baseline (DOS) to 7 days (Post Op)
VAS Scores will be assessed on Day of Surgery (DOS), Post-op Day (POD) 1, 2 and 7. If patients have been discharged, coordinators will contact patient by home.
Baseline (DOS) to 7 days (Post Op)

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Length of Stay During Hospitalization
Time Frame: 8 days
LOS will be recorded from medical record.
8 days

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Opioid Usage Per Hour During the PACU Stay Before and After Ketamine Infusion
Time Frame: 8 Days
Length of stay and opioid usage will be recorded from electronic medical chart
8 Days
Opioid Usage Per Day Throughout the Hospital Stay
Time Frame: 8 days
recorded from medical chart
8 days
Time to Out of Bed to Chair (OOB)
Time Frame: 7 Days
Patient will be asked to record and report the time to OOB
7 Days
Spirometry Use 4 Hours After the Termination of Ketamine Infusion
Time Frame: 1 day
Spirometry use will be assessed by a study team member to determine whether the patient is meeting the goal set by the surgical team 4 hours after ketamine infusion.
1 day
Change in Serum Level of IL-1 After Ketamine Infusion
Time Frame: 1 day
changes in serum levels of IL-1, which will be collected at baseline (in the OR preoperatively), and 15 min and 4 hours after the termination of ketamine infusion.
1 day
Survey Scores - McGill's Short Form
Time Frame: Pre-op,Day of Surgery through Post-op Day 8
Change in survey scores -- McGill's short form
Pre-op,Day of Surgery through Post-op Day 8
Survey Scores - Becks Depression Index (BDI)
Time Frame: Pre-op,Day of Surgery through Post-op Day 8
Change in survey scores for Becks Depression Index (BDI)
Pre-op,Day of Surgery through Post-op Day 8
Survey Scores - QoR15
Time Frame: Pre-op,Day of Surgery through Post-op Day 8
Change in scores for Quality of Recovery 15 - QoR15
Pre-op,Day of Surgery through Post-op Day 8
Survey Scores - MADRS
Time Frame: Pre-op,Day of Surgery through Post-op Day 8
Change in scores for MADRS
Pre-op,Day of Surgery through Post-op Day 8
Change in Serum Level of IL-6 After Ketamine Infusion
Time Frame: 1 day
changes in serum levels of IL-1, which will be collected at baseline (in the OR preoperatively), and 15 min and 4 hours after the termination of ketamine infusion.
1 day
Change in Serum Level of TNF-α After Ketamine Infusion
Time Frame: 1 day
changes in serum levels of IL-1, which will be collected at baseline (in the OR preoperatively), and 15 min and 4 hours after the termination of ketamine infusion.
1 day
Change in Serum Level of BDNF After Ketamine Infusion
Time Frame: 1 day
changes in serum levels of IL-1, which will be collected at baseline (in the OR preoperatively), and 15 min and 4 hours after the termination of ketamine infusion.
1 day

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
NYU Langone Health

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Jing Wang, MD, PHD, NYU School of Medicine

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
October 1, 2014

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
April 13, 2017

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
April 13, 2017

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
April 16, 2015

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 18, 2015

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
May 22, 2015

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 16, 2020

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 2, 2020

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
March 1, 2020

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 14-00472

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Cookie Settings

We use cookies to ensure that we give you the best experience on our website. For more details carefully read our Privacy and Cookies Policy. ...>>>You can change your preferences or withdraw your consent at any time by deleting the cookies from your website or computer as described in the policy. Please accept it and choose your preferences by ticking the corresponding boxes in the "Manage Settings" section below. Please carefully read our Terms of Service before you proceed with using any part of this website.
«Manage Settings