New combo aims to ease fibromyalgia pain better than standard drug
NCT ID NCT07382921
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether adding tizanidine (a muscle relaxant) to pregabalin (a standard pain drug) works better than pregabalin alone for fibromyalgia pain. About 164 adults with daily pain will be followed for 12 weeks. The goal is to see if the combination reduces pain and improves quality of life with fewer side effects.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 164 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Jan 2026
An estimate. Start dates often move.
- Expected to finish
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Aug 2026
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 65 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * 1.Aged 18-65 years. 2.Fulfill the 2016 updated American College of Rheumatology (ACR) diagnostic criteria for fibromyalgia. 3.Sufficient cognitive function, visual acuity and language skills to complete questionnaires and pain diaries and to participate in telephone communication with study nurses to permit titration of the study drugs. 4.Experienced daily pain (≥4/10 on a numerical rating scale) for at least 3 months. Exclusion Criteria: * 1.Presence of a painful condition, including inflammatory rheumatic disease, more than 50% as severe as but distinct from fibromyalgia. 2.Women who are pregnant or lactating. 3.Women of childbearing potential not using adequate contraceptives. 4.End-stage kidney or liver disease. 5.Unstable cardiovascular disease (myocardial infarction within the preceding year, unstable angina, or congestive heart failure) or clinically relevant abnormal 12-lead electrocardiogram. 6.Any poorly controlled medical condition that, in the opinion of the investigator, would interfere with proper conduct of the trial. 7.Severe depression, as determined by a Beck Depression Inventory-II score of 29 or more suicidal ideation, as determined by a Beck Depression Inventory-II item 9 score of 2 or more any current major psychiatric disorder (e.g., schizophrenia, bipolar disorder) that is not well controlled. 8.Hypersensitivity to any of the study medications. 9.Any current alcohol or drug abuse or dependence (except nicotine and caffeine). 10.Those taking more than 90 mg morphine equivalents per day.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Beijing Tiantan Hospital, Capital Medical University in Beijing
Beijing, Beijing Municipality, China
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