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Safety and Efficacy of Intravenous Acetaminophen (IV APAP) in Adult Inpatients

A Phase III, Multi-Center, Open-Label, Prospective, Repeated Dose, Randomized, Controlled, Multi-Day Study of the Safety and Efficacy of Intravenous Acetaminophen in Adult Inpatients

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00598559
Enrollment
213
Registered
2008-01-22
Start date
2008-01-31
Completion date
2008-11-30
Last updated
2016-10-21

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

Conditions

Acute Pain, Fever

Keywords

Acute pain, Fever, IV Acetaminophen, Analgesic

Brief summary

The study will be investigating safety and efficacy administration of repeated dose of IV Acetaminophen (IV APAP) over five days for the treatment of acute pain or fever in adult patients.

Detailed description

• To assess the safety of IV Acetaminophen when used over five days for the treatment of acute pain or fever in adult inpatients Secondary Objectives: * To compare the efficacy of IV Acetaminophen 650 milligram (mg) every four (q4) hours vs. 1 gram (g) every 6 (q6) hours over 5 days of treatment * To compare the safety of IV Acetaminophen 650 mg q4 hours vs. 1 g q6 hours over 5 days of treatment * To compare the safety of IV Acetaminophen vs. standard of care (SOC) treatment over 5 days of treatment * To compare the efficacy of IV Acetaminophen vs. standard of care treatment over 5 days of treatment

Interventions

DRUGIV Acetaminophen

Arm 1: 1 g IV Acetaminophen every 6 hours administered for five days. Arm 2: 650 mg IV Acetaminophen every 4 hours administered for five days. Arm 3: The standard of care treatments were defined as any medication the investigator deemed appropriate to treat the subject, including products containing acetaminophen but excluding IV acetaminophen.

Sponsors

Mallinckrodt
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 85 Years
Healthy volunteers
No

Inclusion criteria

* Provide written informed consent prior to participation in the Study * Be at least 18 years of age and weigh at least 41 kilogram (kg) * Be anticipated by the Investigator to require multi-day (target is five days) use of IV treatment either because of having a nothing by mouth (NPO) status having a medical condition that makes oral intake difficult having a medical condition that requires IV treatment * Be willing to undergo 5 days of treatment with IV acetaminophen for the treatment of pain or fever (defined as a core temperature greater than or equal to 38 degrees celsius). Note that Subjects have a slightly less than 15% chance (one in seven) of being assigned to the Control Group and receiving standard of care treatment, but no IV APAP. * Have the ability to read and understand the Study procedures and have the ability to communicate meaningfully with the Study Investigator and staff * If a female of child bearing potential, have a negative pregnancy test within 48 hours of randomization

Exclusion criteria

* Has a significant medical disease, laboratory abnormality or condition that, in the Investigator's judgment, could compromise the Subject's welfare or would otherwise contraindicate Study participation * Is expected to have difficulty in communicating with the Study staff or completing Study requirements (including follow up visits) * Has known hypersensitivity to acetaminophen or the inactive ingredients (excipients) of IV acetaminophen or any contraindication to receiving acetaminophen * Has impaired liver function, e.g., Alanine aminotransferase (ALT) greater than or equal to 3 times the upper limit of normal (ULN), bilirubin greater than or equal to 3 times ULN, known active hepatic disease (e.g., hepatitis), evidence of clinically significant chronic liver disease or other condition affecting the liver (e.g., alcoholism as defined by DSM-IV, cirrhosis or chronic hepatitis) * Has participated in an interventional clinical Study (investigational or marketed product) within 30 days of Study entry

Design outcomes

Primary

MeasureTime frameDescription
Number of Subjects Reporting at Least One Treatment-Emergent Adverse Event (TEAE).T0 (first dose of IV APAP or randomization to SOC group) to Day 7 - 12 Follow-upNumber of subjects who experienced at least one treatment emergent adverse event (TEAE). A TEAE is an adverse event that occurs on or after the first dose of study medication (T0).
Subjects Who Experienced at Least One Serious Treatment-Emergent Adverse Event (TEAE)First dose (T0) to within 30 days of the last dose of study medication.Serious TEAE is any untoward medical occurrences at any dose of study medication that: * results in death * is life threatening * requires inpatient hospitalization or causes prolongation of existing hospitalization * results in persistent or significant disability/incapacity * is a congenital anomaly/birth defect * is an important medical event

Secondary

MeasureTime frameDescription
Subject Global Evaluation of the Level of Satisfaction With Side Effects Related to Study TreatmentsEnd of Day 5 (prior to discharge)Using a four point categorical scale 0= poor, 1= fair, 2= good, 3= excellent, comparisons of subject's Global Evaluations of the level of satisfaction with side effects related to study treatment at End of Day 5 (prior to discharge)
Subject Global Evaluation of the Level of Satisfaction With Study Treatments Looking Back Over the Entire Treatment Period.Study period lookback at Day 7Using a four point categorical scale 0= poor, 1= fair, 2= good, 3= excellent, comparisons of subject's Global Evaluations of the level of satisfaction with study treatments looking back over the entire treatment period was conducted at Day 7.

Countries

United States

Participant flow

Recruitment details

Open label study conducted in the US from 21 Feb 2008 -12 Aug 2008

Participants by arm

ArmCount
IV Acetaminophen 1g q6h
All Subjects Randomized to Receive IV acetaminophen 1g administered every 6 hours.
92
IV Acetaminophen 650 mg q4h
All Subjects Randomized to Receive 650 mg IV acetaminophen administered every 4 hours.
91
Standard of Care (SOC)
All Subjects Randomized to Receive standard of care treatment under the discretion of the Investigator and the medical staff caring for them.
30
Total213

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyAdverse Event1170
Overall StudyEarly discharge from hospital9123
Overall StudyProtocol Non-compliance100
Overall StudySubject unable/unwilling to attend visit470
Overall StudyWithdrawal by Subject220

Baseline characteristics

CharacteristicIV Acetaminophen 1g q6hIV Acetaminophen 650 mg q4hStandard of Care (SOC)Total
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
44 Participants37 Participants13 Participants94 Participants
Age, Categorical
Between 18 and 65 years
48 Participants54 Participants17 Participants119 Participants
Sex: Female, Male
Female
49 Participants44 Participants17 Participants110 Participants
Sex: Female, Male
Male
43 Participants47 Participants13 Participants103 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —
other
Total, other adverse events
60 / 9268 / 9118 / 30
serious
Total, serious adverse events
14 / 9211 / 913 / 30

Outcome results

Primary

Number of Subjects Reporting at Least One Treatment-Emergent Adverse Event (TEAE).

Number of subjects who experienced at least one treatment emergent adverse event (TEAE). A TEAE is an adverse event that occurs on or after the first dose of study medication (T0).

Time frame: T0 (first dose of IV APAP or randomization to SOC group) to Day 7 - 12 Follow-up

Population: Safety analyses were conducted using the mITT population, defined as subjects who were randomized to the IV acetaminophen groups and who received at least one dose of IV acetaminophen, and all subjects assigned to the SOC group.

ArmMeasureValue (NUMBER)
IV Acetaminophen 1 g q6hNumber of Subjects Reporting at Least One Treatment-Emergent Adverse Event (TEAE).77 Participants
IV Acetaminophen 650 mg q4hNumber of Subjects Reporting at Least One Treatment-Emergent Adverse Event (TEAE).86 Participants
Standard of Care (SOC)Number of Subjects Reporting at Least One Treatment-Emergent Adverse Event (TEAE).26 Participants
Primary

Subjects Who Experienced at Least One Serious Treatment-Emergent Adverse Event (TEAE)

Serious TEAE is any untoward medical occurrences at any dose of study medication that: * results in death * is life threatening * requires inpatient hospitalization or causes prolongation of existing hospitalization * results in persistent or significant disability/incapacity * is a congenital anomaly/birth defect * is an important medical event

Time frame: First dose (T0) to within 30 days of the last dose of study medication.

Population: Safety analyses were conducted using the mITT population, defined as subjects who were randomized to the IV acetaminophen groups and who received at least one dose of IV acetaminophen, and all subjects assigned to the SOC group.

ArmMeasureValue (NUMBER)
IV Acetaminophen 1 g q6hSubjects Who Experienced at Least One Serious Treatment-Emergent Adverse Event (TEAE)14 Participants
IV Acetaminophen 650 mg q4hSubjects Who Experienced at Least One Serious Treatment-Emergent Adverse Event (TEAE)11 Participants
Standard of Care (SOC)Subjects Who Experienced at Least One Serious Treatment-Emergent Adverse Event (TEAE)3 Participants
Secondary

Subject Global Evaluation of the Level of Satisfaction With Side Effects Related to Study Treatments

Using a four point categorical scale 0= poor, 1= fair, 2= good, 3= excellent, comparisons of subject's Global Evaluations of the level of satisfaction with side effects related to study treatment at End of Day 5 (prior to discharge)

Time frame: End of Day 5 (prior to discharge)

Population: Analyses were conducted using the mITT population, defined as subjects who were randomized to the IV acetaminophen groups and who received at least one dose of IV acetaminophen, and all subjects assigned to the SOC group.

ArmMeasureValue (MEAN)Dispersion
IV Acetaminophen 1 g q6hSubject Global Evaluation of the Level of Satisfaction With Side Effects Related to Study Treatments2.5 Units on a scaleStandard Deviation 0.78
IV Acetaminophen 650 mg q4hSubject Global Evaluation of the Level of Satisfaction With Side Effects Related to Study Treatments2.5 Units on a scaleStandard Deviation 0.67
Standard of Care (SOC)Subject Global Evaluation of the Level of Satisfaction With Side Effects Related to Study Treatments2.0 Units on a scaleStandard Deviation 0.85
Secondary

Subject Global Evaluation of the Level of Satisfaction With Study Treatments Looking Back Over the Entire Treatment Period.

Using a four point categorical scale 0= poor, 1= fair, 2= good, 3= excellent, comparisons of subject's Global Evaluations of the level of satisfaction with study treatments looking back over the entire treatment period was conducted at Day 7.

Time frame: Study period lookback at Day 7

Population: Analyses were conducted using the mITT population, defined as subjects who were randomized to the IV acetaminophen groups and who received at least one dose of IV acetaminophen, and all subjects assigned to the SOC group.

ArmMeasureValue (MEAN)Dispersion
IV Acetaminophen 1 g q6hSubject Global Evaluation of the Level of Satisfaction With Study Treatments Looking Back Over the Entire Treatment Period.2.4 Units on a scaleStandard Deviation 0.75
IV Acetaminophen 650 mg q4hSubject Global Evaluation of the Level of Satisfaction With Study Treatments Looking Back Over the Entire Treatment Period.2.3 Units on a scaleStandard Deviation 0.74
Standard of Care (SOC)Subject Global Evaluation of the Level of Satisfaction With Study Treatments Looking Back Over the Entire Treatment Period.2.2 Units on a scaleStandard Deviation 0.61

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