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Comparing Effectiveness of IV vs Oral Acetaminophen Given Perioperatively for Lap Choles for Pain Control,

A Prospective, Randomized, Double Blind, Comparative-effectiveness Study Comparing Perioperative Administration of Oral Versus Intravenous Acetaminophen for Laparoscopic Cholecystectomy

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01823224
Enrollment
67
Registered
2013-04-04
Start date
2013-02-28
Completion date
2015-09-30
Last updated
2016-06-06

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

Conditions

Laparoscopic Cholecystectomy

Brief summary

The purpose of the study is to learn whether perioperative IV (intravenous) administration of acetaminophen (commonly referred to as Tylenol) shows any different clinical outcomes over the oral (by mouth) administration of acetaminophen for a patient having a laparoscopic cholecystectomy. If improved pain scores occur with the administration of IV acetaminophen, it may result in fewer requests for pain-related intervention such as other oral pain medications.

Detailed description

Subjects were enrolled following the listed inclusion and exclusion criteria. Subjects Eligibility Criteria: Inclusion Criteria: Male and female patients ASA I - III . 18 years of age and older Exclusion Criteria: Chronic pain syndromes (pain symptoms lasting greater than 3 months), previous abdominal surgery Chronic home narcotic use (patient-reported narcotic use for greater than 3 months) Previous Bowel resection, colon surgery, stomach surgery . Liver disease (AST or ALT greater than 3 times upper limit of normal), on labs closest to surgical date or within 6 months prior to surgery Severe renal disease (creatinine clearance less than 30 mL/min), on labs closest to surgical date or within 6 months prior to surgery Open or emergency surgery (non-scheduled surgery, surgery that must be performed within 6 hours for this particular surgery) Prior NSAIDS (Non-Steroid Anti-inflammatory Drugs) including COX-2 agents use within the last 24 hours Use of intraoperative NSAIDs Contraindication to study drug (including allergic reaction or hypersensitivity to acetaminophen or any of its components; Taking a medication with known interactions with acetaminophen Taking chronic oral acetaminophen, greater than 6 months on a daily basis at a dose greater than 3000mg/day Pregnancy Current or past alcohol abuse (within the past 2 years)

Interventions

DRUG2 capsules Oral Tylenol 2000 mg and IV salt water

The participants randomized to receive the '2 capsules Oral Acetaminophen 500 mg and IV salt water repeated 4 hours after that dose to equal 2000mg. A pre-op pain score was obtained and pain scores every 15 min x 1 hour then per recovery routine and they did a 24 hour home diary to record pain scores for 24 hours post surgery. Their opioid morphine equivalent was recorded intraoperatively, recovery and at home. This was compared to the other group receiving IV acetaminophen.and the pain scores and morphine equivalents were collected the same as in the comparative group. Each group received a placebo version oral or iv accordingly.

DRUGIV tylenol 1000mg and 2 oral capsule sugar pills

IV acetaminophen 1000mg and 2 oral capsule sugar pills were given to participants that were randomized to receive the IV acetaminophen. The same collection of pain scores and morphine equivalents was completed the same as the other group.

Sponsors

Defense and Veterans Center for Integrative Pain Management
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
DOUBLE (Subject, Caregiver)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Male and female patients ASA I - III (A system used by anesthesiologists to stratify severity of patients' underlying disease and potential for suffering complications from general anesthesia ), 18 years of age and older * Patient must be scheduled for laparoscopic cholecystectomy

Exclusion criteria

* Chronic pain syndromes (pain symptoms lasting greater than 3 months), previous abdominal surgery * Chronic home narcotic use (patient-reported narcotic use for greater than 3 months) * Liver disease (AST or ALT greater than 3 times upper limit of normal), on labs closest to surgical date or within 6 months prior to surgery * Severe renal disease (creatinine clearance less than 30 mL/min), on labs closest to surgical date or within 6 months prior to surgery * Open or emergency surgery (non-scheduled surgery, surgery that must be performed within 6 hours for this particular surgery) * Prior NSAIDS(Non-Steroid Anti-inflammatory Drugs) including COX-2 agents use within the last 24 hours * Use of intraoperative NSAIDs * Contraindication to study drug (including allergic reaction or hypersensitivity to acetaminophen or any of its components; * On a medication with known interactions with acetaminophen * On chronic oral acetaminophen, greater than 6 months on a daily basis at a dose greater than 3000mg/day * Pregnancy * Current or past alcohol abuse (within the past 2 years)

Design outcomes

Primary

MeasureTime frameDescription
Pain24 hours after dischargePain after treatment with IV versus oral tylenol will be assessed via pain scores utilizing an numerical rating scale (NRS) )0-10 with 0 as no pain and 10 as worst pain with 5 as moderate pain and faces accompanied the scores with full smile on no pain to tears and frown on worst pain.

Secondary

MeasureTime frameDescription
Total Opioid Consumption From Time of First Waking to T24every 6 hours for 24 hoursPain diary will be filled out every 6 hours for 24 hours after discharge in which the following will be recorded: * Opioid consumption from first waking to T4 * Total opioid consumption from T0 to T4 * Total opioid consumption from time of first waking to T24

Countries

United States

Participant flow

Recruitment details

Adult patients (male and non-pregnant females, 18 years of age or older) with symptomatic cholelithiasis and ASA rating of I-III scheduled to undergo elective LapChole were eligible for this trial.

Participants by arm

ArmCount
Group 1
Group 1 will receive IV acetaminophen 1000mg plus 2 oral capsules sugar pills 1 hour prior to surgical incision and 4 hours after initial dose, for a total of two doses of acetaminophen totaling or equaling 2000mg IV tylenol 1000mg and 2 oral capsule sugar pills: IV acetaminophen 1000mg and 2 oral capsule sugar pills were given to participants that were randomized to receive the IV acetaminophen. The same collection of pain scores and morphine equivalents was completed the same as the other group.
28
Group 2
Group 2 will receive an IV salt water infusion plus 2 capsules of oral acetaminophen 1 hour prior to surgical incision and 4 hours after initial dose, for a total of two doses totaling or equaling 2000mg. 2 capsules Oral Tylenol 2000 mg and IV salt water: The participants randomized to receive the '2 capsules Oral Acetaminophenl 500 mg and IV salt water repeated 4 hours after that dose to equal 2000mg. A pre-op pain score was obtained and pain scores every 15 min x 1 hour then per recovery routine and they did a 24 hour home diary to record pain scores for 24 hours post surgery. Their opioid morphine equivalent was recorded intraoperatively, recovery and at home. This was compared to the other group receiving IV acetaminophen.and the pain scores and morphine equivalents were collected the same as in the comparative group. Each group received a placebo version oral or iv accordingly.
22
Total50

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall Studydidn't qualify12
Overall StudyLost to Follow-up56
Overall Studymissed med dose01
Overall Studypharmacy error01
Overall StudyWithdrawal by Subject01

Baseline characteristics

CharacteristicGroup 2TotalGroup 1
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
22 Participants50 Participants28 Participants
Age, Continuous37.00 years
STANDARD_DEVIATION 10.65
40.32 years
STANDARD_DEVIATION 11.39
43.64 years
STANDARD_DEVIATION 12.13
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
2 Participants8 Participants6 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
4 Participants5 Participants1 Participants
Race (NIH/OMB)
White
16 Participants37 Participants21 Participants
Region of Enrollment
United States
22 participants50 participants28 participants
Sex: Female, Male
Female
21 Participants42 Participants21 Participants
Sex: Female, Male
Male
1 Participants8 Participants7 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
2 / 280 / 22
serious
Total, serious adverse events
1 / 280 / 22

Outcome results

Primary

Pain

Pain after treatment with IV versus oral tylenol will be assessed via pain scores utilizing an numerical rating scale (NRS) )0-10 with 0 as no pain and 10 as worst pain with 5 as moderate pain and faces accompanied the scores with full smile on no pain to tears and frown on worst pain.

Time frame: 24 hours after discharge

ArmMeasureGroupValue (MEAN)Dispersion
Group 1PainArrival in PACU1.61 NRS scaleStandard Deviation 2.78
Group 1PainDischarge from PACU2.36 NRS scaleStandard Deviation 1.73
Group 1PainDischarge+6hrs4.81 NRS scaleStandard Deviation 2.24
Group 1PainDischarge+12hrs5.09 NRS scaleStandard Deviation 2.6
Group 1Painpre-op1.41 NRS scaleStandard Deviation 2.09
Group 1PainDischarge+18hrs4.12 NRS scaleStandard Deviation 2.62
Group 1PainDischarge+24hrs3.96 NRS scaleStandard Deviation 2.47
Group 2PainDischarge+18hrs4.21 NRS scaleStandard Deviation 2.07
Group 2PainArrival in PACU2.32 NRS scaleStandard Deviation 2.73
Group 2Painpre-op1.73 NRS scaleStandard Deviation 1.93
Group 2PainDischarge from PACU2.64 NRS scaleStandard Deviation 1.56
Group 2PainDischarge+12hrs4.71 NRS scaleStandard Deviation 2.08
Group 2PainDischarge+6hrs4.81 NRS scaleStandard Deviation 1.69
Group 2PainDischarge+24hrs4.09 NRS scaleStandard Deviation 1.77
p-value: 0.875Repeated analysis of variance
Secondary

Total Opioid Consumption From Time of First Waking to T24

Pain diary will be filled out every 6 hours for 24 hours after discharge in which the following will be recorded: * Opioid consumption from first waking to T4 * Total opioid consumption from T0 to T4 * Total opioid consumption from time of first waking to T24

Time frame: every 6 hours for 24 hours

ArmMeasureGroupValue (MEAN)Dispersion
Group 1Total Opioid Consumption From Time of First Waking to T24PACU13.46 milligramsStandard Deviation 23.2
Group 1Total Opioid Consumption From Time of First Waking to T24Home Consumption36.96 milligramsStandard Deviation 33.19
Group 1Total Opioid Consumption From Time of First Waking to T24Total consumption from peration to 24 hrs153.38 milligramsStandard Deviation 57.32
Group 2Total Opioid Consumption From Time of First Waking to T24PACU17.41 milligramsStandard Deviation 17.91
Group 2Total Opioid Consumption From Time of First Waking to T24Home Consumption39.56 milligramsStandard Deviation 37.56
Group 2Total Opioid Consumption From Time of First Waking to T24Total consumption from peration to 24 hrs163.86 milligramsStandard Deviation 78.04
p-value: >0.05Manova

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