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Comparing IV vs. Oral Acetaminophen for Acute Pelvic Pain

This study is looking at how well intravenous (IV) acetaminophen (given through a vein) compares to oral acetaminophen (taken by mouth) for treating acute pelvic pain. Researchers want to see which method works better and faster in an emergency room setting. You might be able to join if you are a woman between 16 and 50 years old, come to the emergency department with pelvic pain, and have a pain score of 4 or higher. The main goal is to measure how much your pain changes within 30 minutes after receiving the medication. This study is currently recruiting participants.

Study design
This is a randomized, double-blind, double-dummy study, meaning participants are randomly assigned to a treatment group, and neither you nor your doctors will know which treatment you are receiving. The study plans to enroll 140 women.
What's involved
Not specified in the trial record.
Compensation
Not stated in the trial record.
Follow-up
Your pain will be measured from when you start the study until 30 minutes after you receive the medication.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.

NCT07595302

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

Not Yet Recruiting
PHASE4Ages 16–50InterventionalTreatment
Montefiore Medical Center
~140 participants
Updated 2026-05-20 on ClinicalTrials.gov
What's tested:Acetaminophen 1000mg POIV Acetaminophen 1000mgIV PlaceboPO Placebo

At a glance

Recruiting sites
0 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Mean Change in Numeric Rating Scale (NRS) score
Measured over From baseline to 30 minutes following medication administration

Conditions

Pelvic Pain

Explore related trials

Pelvic Pain

Where it's being run

1 sites across 1 states
New York1

Study leadership

  • Eddie M Irizarry, MD · PRINCIPAL_INVESTIGATOR · Montefiore Medical Center

Who to contact

Mustfa Manzur, MD MPH MS
[email protected]
718-920-6674
Email the study team

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Do you actually qualify for this trial?

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Eligibility criteria

Inclusion

Female sex at birth
Presentation to the Emergency Department (ED) with pelvic pain
Baseline numeric pain score (NRS) ≥4
Ability to provide informed consent in English or Spanish

Exclusion

Receipt of any analgesic medication within 2 hours or acetaminophen within 6 hours
Known allergy or intolerance to acetaminophen

What this trial measures

  • Mean Change in Numeric Rating Scale (NRS) scoreFrom baseline to 30 minutes following medication administration

    Mean Change in NRS score will be assessed at 30 minutes post-treatment. The NRS is a patient self-assessment pain scale that instructs patients to use a facial grimace scale ranging from 0-10 rating to express pain intensity, wherein 0 is "No pain" and 10 is "Worst pain possible," such that higher scores are indicative of greater pain intensity. For purposes of the primary outcome change in NRS score from baseline will be assessed. Results will be summarized by study arm using descriptive statistics.