About Pricing FAQs Providers Blog

Loading clinical trials...

Your health journey, clearly organized.

Find Clinical Trials →

Legal

Privacy Policy
Terms of Service

© 2026 Clareo Health. All rights reserved.

Back to clinical trial search

COMPLETEDPhase 2NCT02997800

The Effect of Intraoperative Labetalol on Time to Discharge

Patients coming for surgery often receive opioid medications, like fentanyl, to treat pain. Opioids however have many unpleasant side effects including nausea and vomiting, itching, sedation, and decr...

Lead sponsor: Dr. Robert Tanzola•1 locations•View source on ClinicalTrials.gov

Clareo plain-language summary

What this study is about

Generating AI summary...

Save this trial guide to your notes

Keep your clinical trial research organized — questions to ask, what to expect, and key details.

Sponsors

Lead Sponsor

Dr. Robert Tanzola

Age

18 - 70 years

Sex

ALL

Healthy Volunteers

No

Inclusion Criteria

•scheduled to undergo elective ambulatory laparoscopic cholecystectomy under general anesthesia
•American Society of Anesthesiologist's Status ASA) 1-3
•able to understand and sign informed consent

Exclusion Criteria

•known allergy to any of the study medications including beta blockers, fentanyl, acetaminophen, non-steroidal anti-inflammatories or local anesthetics
•chronic use of beta-adrenergic receptor antagonists or opioids
•conversion to open cholecystectomy
•History of renal, hepatic or cardiac failure, reactive airway disease
•Medical history that in the investigator's judgement would interfere with the protocol or assessments
•Unable to understand pain assessment
•Failure to give informed consent
•pregnant or breastfeeding

Related studies

Effects of Watermelon Juice on Heart Rate Recovery and Post-exercise Muscle Soreness

NCT03380195 · Heart Rate Recovery

Effects of Endogenous GIP on Postprandial Blood Pressure in Healthy Individuals

NCT06934473 · Bloodpressure

Novel Mental Health Therapies to Improve Military Readiness

NCT05887713 · Anxiety, Alpha Stim, and more

RECRUITINGPhase 4

Oxytocin and Fetal Heart Rate Changes

NCT03232918 · Fetal Bradycardia Complicating Labor and Delivery, Fetal Bradycardia During Labor, and more

Exploring the Relationship Between Heart Rate Variability (HRV), Training Load, and Endurance Performance

NCT06964100 · Heart Rate Variability

View all related studies →

Data from ClinicalTrials.govLast updated on ClinicalTrials.gov: February 13, 2020Terms

Trial snapshot

StatusCOMPLETED

PhasePHASE2

Enrollment172

Start dateNov 2012

Last updatedFeb 13, 2020

Condition

Bloodpressure Heart Rate

Locations shown

Queen's University, Department of Anesthesiology

Kingston, Ontario

For caregivers

Use Clareo to keep notes, questions, trial details, and next steps organized before and after appointments.

Start free trial →

Data Source & Attribution

This clinical trial information is sourced from ClinicalTrials.gov, a service of the U.S. National Institutes of Health.

ClinicalTrials.gov last update: February 13, 2020Data synced to Clareo: July 13, 2026

Modifications: This data has been reformatted for display purposes. Eligibility criteria have been parsed into inclusion/exclusion sections. Location data has been geocoded to enable distance-based search. For the authoritative and most current information, please visit ClinicalTrials.gov.

Neither the United States Government nor Clareo Health make any warranties regarding the data. Check ClinicalTrials.gov frequently for updates.

View ClinicalTrials.gov Terms and Conditions