Remifentanil Plus Ketamine for Dynamic Flexible Bronchoscopy

July 25, 2023 updated by: Satya Krishna Ramachandran, Beth Israel Deaconess Medical Center

Remifentanil Plus Ketamine Versus Midazolam Plus Fentanyl for Dynamic Flexible Bronchoscopy: Randomized Double-blind Clinical Trial

This randomized controlled pilot clinical trial will enroll patients undergoing dynamic flexible bronchoscopy will be randomized to receive one of the two anesthetic combinations described above. The study will determine if there is a difference when considering patient and physician and satisfaction when performing DFB. Also, safety and efficacy of the two pharmacological combinations (fentanyl + midazolam and remifentanil + ketamine) used will be evaluated.

Study Overview

Status

Status

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Withdrawn

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.

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

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 4

Contacts and Locations

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

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • United States
    • Massachusetts
      • Boston, Massachusetts, United States, 02215
        • Beth Israel Deaconess Medical Center (BIDMC)

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

15 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion criteria:

  • Adult (>18 years-old)
  • Undergoing planned flexible bronchoscopy with dynamic maneuvers for Excessive Central Airway Collapse assessment at Beth Israel Deaconess Medical Center.

Exclusion criteria:

  • Patients with any past medical history of disease that would put them at risk of receiving one of the four proposed medications. This includes, but it's not limited to, allergies, advanced stage kidney disease, congestive heart failure and non-controlled hypertension.
  • With a known/documented history of opioid abuse at any point during life.
  • PO2< 60 mmHg or SO2 <85% on room air during any of the encounters with physicians between the moment of initial screening and the procedure itself.
  • PaCO2 >60 mmHg
  • Planned additional procedure(s) requiring general anesthesia after the dynamic bronchoscopy.

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: Supportive Care
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

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.
Active Comparator: Remifentanil and Ketamine Group
Patients in Group 1 will receive remifentanil and ketamine. Remifentanil will be administered initially with a 1mcg/kg IV bolus followed by a continuous infusion, 0.1 to 0.15 mcg/kg/min IV (using ideal body weight) with titration to a maximum dose of 0.2 to 0.4 mcg/kg/min IV. Total dose of ketamine will be titrated from 10 to 40 mg, based on clinical judgment, and it will be recorded. Ketamine will be delivered using 2mL syringes, previously filled with ketamine in normal saline at a 10mg/mL concentration.
Drug: Remifentanil
Opioid analgesic
Drug: Ketamine
Analgesic
Active Comparator: Fentanyl and Midazolam
The patients in this group will receive fentanyl doses that range between 0.5 to 2 mcg/kg (25 - 50 mcg) IV bolus in combination with midazolam 1-5 mg bolus over at least 2 minutes as determined by attending anesthesiologist (not to exceed 2.5 mg / 2 min per package insert). Total dosing of fentanyl and midazolam may be titrated, based on clinical judgment, and it will be recorded. Maintenance, additional midazolam doses of 25% of total initial dose required to achieved desired sedation may be administered IV if additional sedation is considered necessary
Drug: Fentanyl
Opioid analgesic
Drug: Midazolam
Benzodiazepine
Other Names:
  • Versed

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
Patient Satisfaction with Sedation Instrument (PSSI)
Time Frame: Two hours after procedure conclusion, prior to patient discharge from the hospital
The primary outcome will be a difference in patient satisfaction with sedation, as determined by a 5-point difference in the PSSI questionnaire. The total score will be assessed by summing the responses to each question. In the scale, 0 will denote no satisfaction (worst outcome) and 100 will represent the greatest possible satisfaction (best outcome).
Two hours after procedure conclusion, prior to patient discharge from the hospital

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
Numerical Rating Scale (NRS) for Discomfort
Time Frame: Two hours after procedure conclusion, prior to patient discharge from the hospital
Difference between both groups in terms of numerical rating scale (NRS) for discomfort associated with the procedure (as reported by the patient). In the scale, 0 will denote no discomfort (best outcome) and 5 will represent the greatest possible discomfort (worse outcome).
Two hours after procedure conclusion, prior to patient discharge from the hospital
ALDRETE score
Time Frame: Two hours after procedure conclusion, prior to patient discharge from the hospital
The ALDRETE score (global assessment of post-anesthetic condition) is used to assess patients' recovery after bronchoscopy at PACU
Two hours after procedure conclusion, prior to patient discharge from the hospital
Clinician Satisfaction with Sedation Instrument (CSSI)
Time Frame: Two hours after procedure conclusion, prior to patient discharge from the hospital
The total score will be assessed by summing the responses to each question. In the scale, 0 will denote no satisfaction (worst outcome) and 100 will represent the greatest possible satisfaction (best outcome).
Two hours after procedure conclusion, prior to patient discharge from the hospital
Severity of Cough
Time Frame: Two hours after procedure conclusion, prior to patient discharge from the hospital
A scale to address severity of cough during the procedure will be used when the bronchoscope pass through the vocal cords and at the level of the proximal trachea, distal trachea and main bronchi. This scale has three categories: Mild, single coughs; Moderate, more than one episode of cough that last less than 5 seconds; and Severe, cough more than 5 seconds
Two hours after procedure conclusion, prior to patient discharge from the hospital
Incidence of Complications
Time Frame: Two hours after procedure conclusion, prior to patient discharge from the hospital
Complications such as desaturation, hypotension, pain, nausea, bradycardia, need for artificial airway or mechanical ventilation and need to abort bronchoscopy will be documented. These will then be compared as percentage of complications.
Two hours after procedure conclusion, prior to patient discharge from the hospital
Duration of Dynamic Flexible Bronchoscopy
Time Frame: Two hours after procedure conclusion, prior to patient discharge from the hospital
Defined as the total time spent between initial insertion of flexible bronchoscope and final withdrawal of such.
Two hours after procedure conclusion, prior to patient discharge from the hospital
PACU Length of Stay
Time Frame: Until discharge from the PACU, on average one hour
Total time of PACU stay with each of the pharmacological combinations, defined as the period of time between initial PACU arrival and final home or floor discharge.
Until discharge from the PACU, on average one hour
Total Nebulized Lidocaine Dose
Time Frame: Until discharge from the PACU, on average one hour
Total dose requirement of nebulized lidocaine, pain medication and cough suppressors at PACU discharge.
Until discharge from the PACU, on average one hour

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.
Beth Israel Deaconess Medical Center

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: Satya Krishna Ramachandran, MD, Beth Israel Deaconess Medical Center

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 (Estimated)

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.
September 1, 2023

Primary Completion (Estimated)

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.
December 1, 2023

Study Completion (Estimated)

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.
December 1, 2023

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).
July 30, 2018

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.
August 2, 2018

First Posted (Actual)

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.
August 3, 2018

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.
July 27, 2023

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.
July 25, 2023

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.
July 1, 2023

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.
  • 2018P000023

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

Yes

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.

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