Acetaminophen is named as an intervention in 16 current clinical trials in our USA, China, Ireland, UK and India registers. 9 are recruiting patients now. The most common phase is Phase 3. The sponsor with the most trials is Merck Sharp & Dohme LLC (4). The most-studied condition is Obesity.
Registers list studies that are recruiting, about to open, active but closed to enrolment, or enrolling by invitation. The UK and USA registers cover industry-sponsored studies only. Trial titles and statuses are copied from the registry as published.
The same active substance in our other registers, matched by its exact name. Each entry links to the register record it comes from.
| Condition (as registered) | Trials |
|---|---|
| Obesity | 5 |
| Overweight | 5 |
| Ovarian Cancer | 1 |
| Fallopian Tube Cancer | 1 |
| Primary Peritoneal Cancer | 1 |
| Plasma Cell Myeloma | 1 |
| Patent Ductus Arteriosus After Premature Birth | 1 |
| Lupus Nephritis | 1 |
| Post Operative Pain, Acute | 1 |
| Lung Neoplasm Malignant | 1 |
| Primary Membranous Nephropathy | 1 |
| Non-small Cell Lung Cancer (NSCLC) | 1 |
| Esophageal Squamous Cell Carcinoma | 1 |
| Overweight and/or Obesity | 1 |
| Drug Interaction | 1 |
| Diabetes Mellitus, Type 1 | 1 |
| Plasma Cell Myeloma Refractory | 1 |
| Healthy Participants | 1 |
| Lead sponsor | Trials |
|---|---|
| Merck Sharp & Dohme LLC | 4 |
| Sanofi | 2 |
| Hoffmann-La Roche | 2 |
| Eli Lilly and Company | 2 |
| Mount Sinai Hospital, Canada | 1 |
| AFT Pharmaceuticals, Ltd. | 1 |
| Pfizer | 1 |
| AstraZeneca | 1 |
| Novo Nordisk A/S | 1 |
| Hangzhou Zhongmei Huadong Pharmaceutical Co., Ltd. | 1 |
| Register | Trials | Recruiting |
|---|---|---|
| Clinical trials in USA | 14 | 8 |
| Clinical trials in China | 5 | 1 |
| Clinical trials in Ireland | 3 | 2 |
| Clinical trials in UK | 3 | 1 |
| Clinical trials in India | 1 | 0 |
A trial with sites in more than one country appears in each of those registers.
16 current trials in our USA, China, Ireland, UK and India registers name Acetaminophen as a drug or biological intervention, as of the registry sync on 25 September 2026. Completed and withdrawn studies are not counted.
Yes. 9 of the 16 trials are recruiting: 8 with sites in USA, 1 with sites in China, 2 with sites in Ireland and 1 with sites in UK. Eligibility and site contacts are on each trial's record. Only the study team can confirm whether a patient is eligible.
Merck Sharp & Dohme LLC (4), Sanofi (2), Hoffmann-La Roche (2) and Eli Lilly and Company (2), among 10 lead sponsors in total. The number in brackets is how many trials each organisation leads.
The registers we track list 1 entry for Acetaminophen: US FDA: resolved. Shortages are product- and country-specific; check with a pharmacist.
Every trial, status, phase and sponsor on this page is copied from public ClinicalTrials.gov records by a daily sync. Nothing here describes how Acetaminophen works or whether it is effective, and it is not medical advice.
Everything on this page is copied from public ClinicalTrials.gov registry records — it is not written from memory, and nothing here describes how Acetaminophen works or whether it is effective. Each trial links to its own record so you can check it yourself.
This page is built automatically: a daily sync job reads the registry records behind our country trial registers, collects every trial that lists Acetaminophen (or a registered synonym) as a drug or biological intervention, and tabulates the registry fields directly. Placebos and generic comparators are excluded. There is no AI drafting and no per-compound editorial pass, and the page has not been clinically reviewed. The “last verified” date above is the timestamp of that sync, not a review date. Our general editorial approach is described in our editorial standards and corrections policy. The ClinicalTrials.gov data on this page was last retrieved on 25 Sep 2026.