Trial results
AI generated results summary. Written by an AI model from the official source data and checked on a sample basis. It can contain mistakes, so confirm anything important against the original source. How we use AI
According to the results reported on ClinicalTrials.gov, this trial involved 62 people who were randomly placed into one of two groups — 31 received intravenous acetaminophen (a painkiller given through a drip) and 31 were in a control group (who did not receive this treatment). All 31 people in the acetaminophen group completed the study, while 29 of the 31 in the control group completed it. The trial was looking at pain levels after surgery, as well as things like the use of additional pain relief medicines and some physical measurements taken in the recovery period. The reported data shows that when pain was measured using a 0–10 scale (where 0 means no pain and 10 means the worst possible pain), both groups scored 0 at one time point. At another time point, the acetaminophen group still scored 0, while the control group scored 2. For additional pain relief after surgery, the acetaminophen group used an average of 1.5 doses of morphine compared to 2.5 doses in the control group. During surgery, 9 people in the acetaminophen group and 4 people in the control group received an extra pain medicine called fentanyl. Regarding nausea after surgery, 13 people in the acetaminophen group and 10 in the control group experienced it. Average blood pressure readings in the recovery period were also recorded — the acetaminophen group had a top-number (systolic) blood pressure of 133 mmHg versus 144 mmHg in the control group, and a bottom-number (diastolic) reading of 75 mmHg versus 78.3 mmHg. These are the results as reported to ClinicalTrials.gov. They are not medical advice — always discuss what they mean for you with your doctor.
View full results on ClinicalTrials.gov ↗ · Read the linked publication on PubMed (PMID 28542675) ↗
These are the results as reported to ClinicalTrials.gov, not medical advice. Verify independently with the trial site and discuss what they mean for you with your doctor.
Chronic Rhinosinusitis Trial, Completed
Who may be able to join
AI generated eligibility summary. Written by an AI model from the official source data and checked on a sample basis. It can contain mistakes, so confirm anything important against the original source. How we use AI
Who might be able to join this trial:
- You are having surgery to treat chronic sinus problems (with or without nasal polyps)
- Your surgery is expected to last at least 2 hours
- At least 3 of your sinuses are affected and will be treated during the surgery
Who may not be able to join:
- You have had an allergic reaction or bad reaction to acetaminophen (e.g. Tylenol/paracetamol) in the past
- You have severe, end-stage kidney disease
- You have severe, end-stage liver disease
- You have a history of long-term (chronic) pain, or you have taken opioid (strong painkiller) medication in the last two weeks
- You have severe depression or severe anxiety
- You are currently taking gabapentin or any other medication used to manage pain (confirm with trial site)
- You have a history of sudden (acute) sinus infection or a mucus cyst (mucocele) in the sinuses
- You have a history of seizures (epilepsy or otherwise)
- You have a known or suspected history of alcohol or drug misuse
- You have a known or suspected history of being intolerant to morphine
Important: Always verify eligibility with the trial site directly before applying.
Based on publicly available eligibility criteria from ClinicalTrials.gov. Verify directly with the trial site before acting. This is not medical advice.
GP referral letter
Print a one-page summary to share with your doctor.
Trial details
Where this trial is recruiting
Primary endpoints
Pain Level Assessed Using a Visual Analogue Scale (VAS) Scale
Can't join this trial?
Data last synced from ClinicalTrials.gov: 28 July 2026. Trial status can change. Always verify current status directly with the trial site before making any decision.