Clinical trial Recruiting at 1 site Phase 2 Interventional Ages 18 to 60

Roflumilast or desloratadine added to usual RA treatment

Official title: Clinical Study to Compare the Possible Efficacy and Safety of Roflumilast and Desloratadine as Adjuvant Therapy for Rheumatoid Arthritis

Run by Horus University · NCT07566351 · Data updated 2026-11-12

This will try adding roflumilast or desloratadine to standard DMARD therapy to see if it reduces inflammation and symptoms in adults 18–60 with active rheumatoid arthritis.

More Rheumatoid Arthritis trials

Quick facts

PhasePhase 2
Study typeInterventional
Ages18 Years to 60 Years
SexAll
Enrollment90 (estimated)
SponsorHorus University
Academic / other
Drugs / interventionsmethotrexate
Locations1 site (Damietta, Damietta Governorate)
StatusRecruiting
StartedApril 23, 2026
Main results expectedJune 2027
Study endsJuly 2027
Registry record updatedMay 12, 2026
Trial IDNCT07566351 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults aged 18–60 with active rheumatoid arthritis meeting 2010 ACR/EULAR criteria, a DAS28 > 2.6, currently on methotrexate as part of conventional therapy, and not receiving biologic DMARDs are ideal candidates.

Probably not a fit

Patients with significant renal or hepatic disease, pregnant or breastfeeding people, those on biologic DMARDs or QT-prolonging medications, or with relevant psychiatric or cardiac history are unlikely to qualify or benefit from this protocol.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is a randomized, double-blind, placebo-controlled Phase 2 trial that assigns participants to roflumilast, desloratadine, or placebo as add-on therapy to their usual DMARD regimen for three months. Eligible participants are adults 18–60 with active rheumatoid arthritis (DAS28 > 2.6) who are receiving methotrexate and not on biologic DMARDs. The study measures changes in disease activity scores, inflammatory biomarkers, and patient-reported outcomes, with safety and tolerability monitored throughout. The trial is conducted at the Faculty of Pharmacy, Horus University in Damietta, Egypt, with regular clinic visits for assessments during the 3-month follow-up.

Why it matters

Potential benefit: If successful, one of these add-on medications could provide an affordable option to further reduce inflammation and improve symptoms in patients whose RA remains active on standard therapy.

How similar studies have gone: PDE4 inhibitors and some antihistamines have shown anti-inflammatory effects in other conditions, but using roflumilast or desloratadine as add-ons in RA is relatively novel and not yet well established.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients with active rheumatoid arthritis according to the 2010 American College of Rheumatology and European League Against Rheumatism classification criteria.
* Disease activity score in 28 joints (DAS28) greater than 2.6.
* Age between 18 and 60 years.
* Male and female patients.
* Patients receiving methotrexate in addition to standard conventional therapy.

Exclusion Criteria:

Exclusion Criteria:

* Patients with renal or hepatic disease.
* Known hypersensitivity to the study medications.
* Current use of antioxidant supplements.
* History of psychiatric disorders.
* Use of oral prednisolone at a dose greater than 15 mg per day.
* Current treatment with biological disease modifying antirheumatic drugs.
* Pregnant or breastfeeding patients.
* History of cardiac arrhythmias or prolonged QT interval.
* Use of medications known to prolong the QT interval.

Where it's running

  • Faculty of Pharmacy, Horus University in Egypt
    Damietta, Damietta Governorate, Egypt
    Recruiting

Study contacts

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.