Effects of Anesthetic Technique on NK Cells
1 other identifier
interventional
20
1 country
1
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
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable pain
Started Jul 2019
Longer than P75 for not_applicable pain
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
October 6, 2015
CompletedFirst Posted
Study publicly available on registry
February 1, 2016
CompletedStudy Start
First participant enrolled
July 10, 2019
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
December 1, 2025
CompletedAugust 29, 2023
August 1, 2023
6.4 years
October 6, 2015
August 28, 2023
Conditions
Keywords
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)
EXPERIMENTALGroup 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.
Bupivacaine (Local Anesthetic Group)
ACTIVE COMPARATORGroup 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.
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.
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
Eligibility Criteria
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
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: 25009196BACKGROUNDBeilin 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: 8623949BACKGROUNDCata 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
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Roya Yumul, MD, PhD
Program Director, Department of Anesthesiology
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