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Intravenous Acetaminophen Use With Bariatric Surgery on Morbidly Obese Patients

Effect of Intravenous Acetaminophen on Postoperative Pain of Morbidly Obese Patients Undergoing Laparoscopic Bariatric Surgery: A Randomized, Placebo-Controlled Trial

Status
Terminated
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01527942
Enrollment
34
Registered
2012-02-07
Start date
2012-03-31
Completion date
2013-07-31
Last updated
2015-12-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Obesity, Pain

Keywords

Pain Management

Brief summary

Bariatric patients usually require the use of either intravenous or oral opioid medications. The use of opioids, however, is often associated with side-effects such as nausea, sedation pruritus, urinary retention and respiratory depression with often delay patient discharge. This study makes use of intravenous acetaminophen , a non-opioid analgesic preoperatively to determine if this will decrease the use of opioids post-operatively for pain management in morbidly obese patients undergoing laparoscopic bariatric surgery.

Interventions

DRUGAcetaminophen

Intravenous Acetaminophen 1,000 mg IV

DRUGPlacebo

Placebo - IV administration 0.9% 100 ml Sodium Chloride (NaCl)

Sponsors

Trinity Health Of New England
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
DIAGNOSTIC
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

Sex/Gender
ALL
Age
20 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

* Morbidly Obese and body mass index (BMI) of 35 * Between ages 20-17 * Candidates for Laparoscopic Bariatric Surgery

Exclusion criteria

* know hypersensitivity to acetaminophen or opioids * impairment in liver function * renal dysfunction * mental retardation

Design outcomes

Primary

MeasureTime frameDescription
Change in Pain Relief Score on the 5-point Pain Relief Score Between Baseline and 24 Hoursbaseline and 24 hoursThe 5-point Pain Relief Score is self-reported and scores range from 0=none, 1=little, 2=some, 3=a lot, 4=complete. Change = (24 hour score - baseline)

Secondary

MeasureTime frameDescription
Change in Pain Intensity on the 10-point Pain Intensity Scale Between Baseline and 24 Hoursbaseline and 24 hoursThe 10-point Pain Intensity Scale is self-reported and scores range from 0=no pain to10=worst possible. Change = (24 hour score - baseline)
Response Rate - of 3=Excellent at Hour 24 Using 4-point Global Satisfaction With Regards to Overall Pain Management Rating Scale 0=Poor to 3= Excellent.24 hours after baselineThe 4-point patient global satisfaction of pain management scale is self-reported and scores range from 0=poor to 3=excellent. Response rate of 3=excellent at 24 hours after baseline.

Countries

United States

Participant flow

Participants by arm

ArmCount
Arm 1 - Active Drug
Preoperative administration of 1,000 mg IV Acetaminophen will be administered after induction of general anesthesia and prior to incision and every 6 hours thereafter for 24 hours. Acetaminophen: Intravenous Acetaminophen 1,000 mg IV
16
Arm 2 - Placebo
Preoperative IV Placebo (0.9 NaCl 100 ml) will be administered after induction of general anesthesia and prior to incision and every 6 hours thereafter for 24 hours. Placebo: Placebo - IV administration 0.9% 100 ml NaCl
18
Total34

Baseline characteristics

CharacteristicTotalArm 1 - Active DrugArm 2 - Placebo
Age, Customized
20 to 70 Years
34 Participants16 Participants18 Participants
Sex: Female, Male
Female
22 Participants11 Participants11 Participants
Sex: Female, Male
Male
12 Participants5 Participants7 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
0 / 160 / 18
serious
Total, serious adverse events
0 / 161 / 18

Outcome results

Primary

Change in Pain Relief Score on the 5-point Pain Relief Score Between Baseline and 24 Hours

The 5-point Pain Relief Score is self-reported and scores range from 0=none, 1=little, 2=some, 3=a lot, 4=complete. Change = (24 hour score - baseline)

Time frame: baseline and 24 hours

Population: Study was terminated - data were determined to be unusable by IRB due to consent issues.

Secondary

Change in Pain Intensity on the 10-point Pain Intensity Scale Between Baseline and 24 Hours

The 10-point Pain Intensity Scale is self-reported and scores range from 0=no pain to10=worst possible. Change = (24 hour score - baseline)

Time frame: baseline and 24 hours

Population: Study was terminated - data were determined to be unusable by IRB due to consent issues.

Secondary

Response Rate - of 3=Excellent at Hour 24 Using 4-point Global Satisfaction With Regards to Overall Pain Management Rating Scale 0=Poor to 3= Excellent.

The 4-point patient global satisfaction of pain management scale is self-reported and scores range from 0=poor to 3=excellent. Response rate of 3=excellent at 24 hours after baseline.

Time frame: 24 hours after baseline

Population: Study was terminated - data were determined to be unusable by IRB due to consent issues.

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026