NCT02669186

Brief Summary

The proposed study is a pilot prospective, single-blinded, randomized controlled trial evaluating the effects of two routine, standard-of-care, anesthetic techniques on natural killer cell population size and cytotoxicity in patients undergoing exploratory abdominal laparotomies.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
20

participants targeted

Target at below P25 for not_applicable pain

Timeline
Completed

Started Jul 2019

Longer than P75 for not_applicable pain

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

October 6, 2015

Completed
4 months until next milestone

First Posted

Study publicly available on registry

February 1, 2016

Completed
3.4 years until next milestone

Study Start

First participant enrolled

July 10, 2019

Completed
6.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2025

Completed
Last Updated

August 29, 2023

Status Verified

August 1, 2023

Enrollment Period

6.4 years

First QC Date

October 6, 2015

Last Update Submit

August 28, 2023

Conditions

Keywords

analgesiacancernatural killer cellopioid

Outcome Measures

Primary Outcomes (1)

  • Natural Killer Cell Cytotoxicty

    Cytotoxicity will be assessed using Flow Cytometric analysis of cell receptor expression.

    One Year

Study Arms (2)

'Bupivacaine + Fentanyl' (Opioid Group)

EXPERIMENTAL

Group 1 (opioid group) will receive general endotracheal anesthesia augmented with an epidural. The epidural solution intraoperatively and post-operatively will contain fentanyl + bupivacaine titrated to appropriate surgical conditions and post-operative pain control.

Drug: Bupivacaine + Fentanyl

Bupivacaine (Local Anesthetic Group)

ACTIVE COMPARATOR

Group 2 (local anesthetic group) will receive general endotracheal anesthesia augmented with an epidural. The epidural solution intraoperatively and post-operatively will contain bupivacaine titrated to appropriate surgical conditions and post-operative pain control.

Drug: Bupivacaine

Interventions

General endotracheal anesthesia augmented with an epidural. The epidural solution intraoperatively and post-operatively will contain fentanyl + bupivacaine titrated to appropriate surgical conditions and post-operative pain control.

Also known as: Sublimaze
'Bupivacaine + Fentanyl' (Opioid Group)

General endotracheal anesthesia augmented with an epidural. The epidural solution intraoperatively and post-operatively will contain bupivacaine titrated to appropriate surgical conditions and post-operative pain control

Bupivacaine (Local Anesthetic Group)

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • years old of either gender
  • Diagnosis of abdominal tumor scheduled for exploratory laparotomy with study surgeon
  • Must be able to have an epidural

You may not qualify if:

  • ASA IV and above
  • Intolerance, allergy, or contraindication to use of either fentanyl or bupivacaine.
  • Significant coronary artery disease (abnormal stress test, myocardial infarction within the last 3 months)
  • Uncontrolled hypertension (BP \> 140/90)
  • Cardiac arrhythmias particularly prolonged QT syndrome
  • Drugs known to cause prolonged qT: class IA antiarrhythmics (quinidine, procainamide, dysopyramide), class III antiarrhythmics (sotalol, dofetalide, ibutalide, amiodarone), haloperidol, thioridazine, arsenic trioxide, HIV protease inhibitors, tricyclic antidepressants
  • Individuals with significant psychological disorders including: schizophrenia, mania, bipolar disorder or psychosis
  • Pregnant or lactating women
  • Morbid obesity (BMI \> 40 kg/m2) AND/OR weight \> 150 kg
  • Chronic renal failure ( creatinine \> 2.0 mg/dL)
  • Liver failure e.g., active cirrhosis
  • Alcohol or substance abuse within in the past 3 months
  • Uncorrected hypokalemia, hypomagnesemia, hypocalcemia (can be due to diuretics, mineralocorticoid use, laxatives)
  • Neuropathic pain
  • Chronic opioid consumption (\>30mg oxycodone or greater per day)
  • +7 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Cedars Sinai Medical Center

Los Angeles, California, 90048, United States

Location

Related Publications (3)

  • Buckley A, McQuaid S, Johnson P, Buggy DJ. Effect of anaesthetic technique on the natural killer cell anti-tumour activity of serum from women undergoing breast cancer surgery: a pilot study. Br J Anaesth. 2014 Jul;113 Suppl 1:i56-62. doi: 10.1093/bja/aeu200. Epub 2014 Jul 9.

    PMID: 25009196BACKGROUND
  • Beilin B, Shavit Y, Hart J, Mordashov B, Cohn S, Notti I, Bessler H. Effects of anesthesia based on large versus small doses of fentanyl on natural killer cell cytotoxicity in the perioperative period. Anesth Analg. 1996 Mar;82(3):492-7. doi: 10.1097/00000539-199603000-00011.

    PMID: 8623949BACKGROUND
  • Cata JP, Bauer M, Sokari T, Ramirez MF, Mason D, Plautz G, Kurz A. Effects of surgery, general anesthesia, and perioperative epidural analgesia on the immune function of patients with non-small cell lung cancer. J Clin Anesth. 2013 Jun;25(4):255-62. doi: 10.1016/j.jclinane.2012.12.007. Epub 2013 May 7.

    PMID: 23659826BACKGROUND

MeSH Terms

Conditions

PainNeoplasmsAgnosia

Interventions

BupivacaineFentanyl

Condition Hierarchy (Ancestors)

Neurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and SymptomsPerceptual DisordersNeurobehavioral ManifestationsNervous System Diseases

Intervention Hierarchy (Ancestors)

AnilidesAmidesOrganic ChemicalsAniline CompoundsAminesPiperidinesHeterocyclic Compounds, 1-RingHeterocyclic Compounds

Study Officials

  • Roya Yumul, MD, PhD

    Program Director, Department of Anesthesiology

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Program Director, Anesthesiology

Study Record Dates

First Submitted

October 6, 2015

First Posted

February 1, 2016

Study Start

July 10, 2019

Primary Completion

December 1, 2025

Study Completion

December 1, 2025

Last Updated

August 29, 2023

Record last verified: 2023-08

Locations