Independent directory Public ClinicalTrials.gov records United States
ClinicalTrials.gov record
Not listed No phase listed Observational

Intraoperative Fentanyl Dose on Respiratory Complications

ClinicalTrials.gov ID: NCT03198208

Public ClinicalTrials.gov record NCT03198208. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 5, 2026, 11:48 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Effects of Intraoperative Fentanyl Dose on Postoperative Respiratory Complications

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

Fentanyl is the most commonly used opioid during anesthesia at Massachusetts General Hospital. Compared to other opioids, e.g. sulfentanil and remifentanil, fentanyl's pharmacokinetic properties are more problematic as the context sensitive half-time increases with duration of fentanyl infusion. This may lead to respiratory complications particularly in patients who receive fentanyl for surgical procedures of long duration. Considering the common use of fentanyl during surgery and its duration of action that is hard to predict during long surgical procedures, we will evaluate the association between intraoperative fentanyl dose and postoperative respiratory complications within 3 days of surgery.

Study identification

NCT ID
NCT03198208
Recruitment status
Not listed
Study type
Observational
Phase
Not listed
Enrollment
183,396 participants

Conditions and interventions

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Not listed

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Dec 31, 2006
Primary completion
Dec 30, 2015
Completion
Jun 29, 2018
Last update posted
Jun 25, 2017

2007 – 2018

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
The Massachusetts General Hospital Boston Massachusetts 02114

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03198208, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Jun 25, 2017 · Synced Sep 5, 2026

Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.

Open the official record

The complete protocol, eligibility criteria, and contact information for NCT03198208 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →