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Efficacy of Acetaminophen Alone Versus Combination of Acetaminophen/Ibuprofen After Cesarean Section

Efficacy of Intravenous Acetaminophen Alone Versus Combination of Acetaminophen/Ibuprofen (Maxigesic®IV) in Multimodal Analgesia After Cesarean Section: a Randomized Controlled Trial

Status
Recruiting
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06479122
Enrollment
84
Registered
2024-06-28
Start date
2024-10-09
Completion date
2026-08-25
Last updated
2025-06-04

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

Conditions

Cesarean Section, Postoperative Pain

Brief summary

The investigators aim to compare the analgesic efficacy of intravenous acetaminophen alone versus combination of acetaminophen/ibuprofen (Maxigesic®IV) in multimodal analgesia after cesarean section.

Interventions

DRUGAcetaminophen

1g acetaminophen is administered during skin closure (end of operation).

A mixture of 1g acetaminophen and 300 mg ibuprofen (Maxigesic®IV) is administered during skin closure (end of operation)

Sponsors

Seoul National University Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
FEMALE
Age
19 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Patients scheduled for elective cesarean section * Gestational age \> 37+0 weeks

Exclusion criteria

* Emergency cesarean section * Multiple pregnancy (e.g. twins, triplets) * Body weight \< 50 kg * Preeclampsia * History of hypersensitivity to acetaminophen or ibuprofen * History of upper gastrointestinal tract bleeding or gastric ulcer * Underlying liver disease * Underlying kidney disease or GFR \< 90 mL/min/1.73m2 * Heart failure or severe hypertension * History of asthma * Chronic use of barbital or tricyclic antidepressants

Design outcomes

Primary

MeasureTime frameDescription
Obstetric QoR-11K score 24 hours after end of surgery24 hours after end of surgeryMinimum 0, poor recovery; maximum 110, good recovery

Secondary

MeasureTime frameDescription
Numeric rating scale pain score (0-10) 8 hours after end of surgery8 hours after end of surgery0, no pain; 10, worst pain imaginable
Numeric rating scale pain score (0-10) 12 hours after end of surgery12 hours after end of surgery0, no pain; 10, worst pain imaginable
Numeric rating scale pain score (0-10) 24 h after end of surgery24 h after end of surgery
Numeric rating scale pain score (0-10) 48 hours after end of surgery48 hours after end of surgery0, no pain; 10, worst pain imaginable
Use of patient-controlled analgesia (FTN, micrograms) during the first 24 hours after end of surgery24 h after end of surgery
Use of patient-controlled analgesia (FTN, micrograms) during the first 48 hours after end of surgery48 h after end of surgery
Use of rescue analgesia during the first 24 hours after end of surgery24 h after end of surgery
Numeric rating scale pain score (0-10) 4 hours after end of surgery4 hours after end of surgery0, no pain; 10, worst pain imaginable
Wound-related complications during hospital stay, up to 5 daysFrom end of surgery to patient discharge, up to 5 days
Operation timeDuration of operation
Anesthesia timeDuration of anesthesia
Injection level of intrathecal drugAfter arrival at the operating room
Dosage of intrathecal drug (mg, bupivacaine)After arrival at the operating room
Sensory blockade level by time point0, 5, 10 minutes after intrathecal injection and at the end of operation
Use of rescue analgesia during the first 48 hours after end of surgery48 h after end of surgery

Countries

South Korea

Contacts

Primary ContactHansol Kim, MD
hansolfrkr@gmail.com+82-10-3160-1548
Backup ContactJunghwa Seo, MD, PhD

Outcome results

None listed

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