Comparing Pain Improvement for Intravenous Versus Oral Acetaminophen in Acute Pelvic Pain

The investigator team proposes a randomized, double-blind, double-dummy comparative effectiveness trial conducted in two urban emergency departments (EDs) in the Bronx, New York. This study is designed to determine the relative efficacy of IV acetaminophen compared to PO acetaminophen in treating pelvic pain. This design focuses on the early onset of action and short-term efficacy, which may better capture potential differences between IV and PO acetaminophen in the acute ED setting.

NCT Number	NCT07595302
Lead Sponsor	Montefiore Medical Center
Conditions	Pelvic Pain
Enrollment	140 participants
Start Date	2026-07-30
Primary Completion	2027-06-30 (estimated)
Study Completion	2027-06-30 (estimated)
Updated on ClinicalTrials.gov	2026-05-20