Could a common drug ease psoriasis? new study seeks answers
NCT ID NCT07626788
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether adding a pill called pentoxifylline to standard skin creams can improve mild-to-moderate psoriasis. About 140 adults will take either the study drug or a placebo twice daily for 12 weeks. Researchers will measure changes in skin severity, itch, and quality of life over 16 weeks.
This is an AI summary of the original study and may miss details. Read our disclaimer.
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 140 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Jun 2026
An estimate. Start dates often move.
- Expected to finish
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Oct 2028
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: * Adults aged 18 to 65 years. * Clinical diagnosis of mild-to-moderate plaque psoriasis, defined as Psoriasis Area and Severity Index (PASI) score 3 to 10 or body surface area (BSA) involvement 3% to 10%, as assessed by a physician. * Receiving stable standard topical therapy for at least 2 weeks before enrollment. * Able and willing to provide written informed consent. * Willing to comply with the study protocol and scheduled follow-up visits. Exclusion Criteria: * Use of biologic agents within 12 weeks before enrollment. * Psoriatic arthritis requiring systemic therapy. * Pregnant or breastfeeding. * Severe liver disease or severe kidney disease. * History of significant bleeding disorder or current use of anticoagulant therapy that cannot be appropriately managed. * Known hypersensitivity to pentoxifylline or related xanthine derivatives. * Any serious medical condition or safety concern that, in the investigator's judgment, makes participation inappropriate. * Refusal or inability to provide informed consent
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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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University of Phayao Hospital
Phayao, Changwat Phayao, 56000, Thailand
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Other studies related to the condition(s) this trial covers.
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- Can monthly selfies and symptom logs reveal how chronic skin diseases flare and settle?
- Can we predict the path of chronic skin disease?
- Can a new pill tame psoriasis? early safety trial begins