Duloxetine Metabolism and Fibromyalgia
- Fibromyalgia
- Duloxetine
At a glance
- Phase
- Phase not stated
- Study type
- Observational
- Sponsor
- University of Utah
- Enrolment target
- 100
- Started
- 1 May 2025
- Main results due
- 1 May 2027
- Study sites
- 1
- Registry updated
- 25 September 2026
Can you take part?
- Aged 18 years and over.
- Open to any sex.
- You need the condition being studied — healthy volunteers are not accepted.
These are the headline rules only. Every study has a longer list, and whether you are eligible is decided by the research team at the site — never by this page.
Read the full eligibility criteria
Inclusion Criteria: * Adults 18+ * Meeting diagnostic criteria for Fibromyalgia * Patients taking Duloxetine 60 mg/day for at least 8 weeks Exclusion Criteria: * Pregnant patients per verbal confirmation * Patients that have a history of physician diagnosed kidney or liver disfunction or history of renal dialysis. * Patients requiring an interpreter to communicate * Patient's with progressive illnesses other than fibromyalgia that have a chronic pain and fatigue component (e.g., cancer patients receiving antineoplastic treatment, Parkinson's disease, Multiple Sclerosis).
What this study is about
In the sponsor’s own words, from the registry.
People with fibromyalgia report generalized body pain ("pain all over"), increased sensitivity to painful stimulation, chronic tiredness or low energy, sleep problems, and other physical and functional problems. The exact cause of the disorder is poorly understood, and treatment can be difficult.
The degree to which duloxetine is helpful for people with fibromyalgia varies greatly. For some people, it is very helpful for managing fibromyalgia symptoms. For others, people may not notice any benefit. Yet for some, it is a little helpful and the effect is noticeable only when people forget to take the medicine.
The purpose of this study is to collect data to better understand the relationship among gene types that control those enzymes, blood concentrations of duloxetine, and how it helps the symptoms.
Study sites(1)
Pain Management Center and Pain Research Center at the University of Utah
Salt Lake City, Utah, United States
Recruiting
Showing 1 of 1 sites. 1 of the 1 site on this study is recruiting right now — a site can stop enrolling while the study as a whole is still open.
Source: ClinicalTrials.gov record NCT06866444. Trialion does not run this study, is not paid to refer anyone to it, and cannot enrol you. Eligibility is always decided by the research team at the site.
Not the right study?
Answer three questions and see the studies recruiting near you, in plain language.
Find a study for me