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A Study With CIT-013 in RA Patients

A Phase IIa Double-Blind, Randomized, Parallel-Arm, Placebo-Controlled Trial To Investigate The Effects Of Three Dose Levels Of CIT-013 On Disease Activity In Patients With Moderately Active Rheumatoid Arthritis.

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06567470
Acronym
Citydream
Enrollment
88
Registered
2024-08-22
Start date
2025-07-29
Completion date
2027-07-01
Last updated
2026-05-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Rheumatoid Arthritis

Brief summary

The goal of this clinical trial is to learn if CIT-013 works to treat rheumatoid arthritis in adults. It will also learn about the safety of CIT-013. The main questions it aims to answer are: Does CIT-013 lower the disease activity of RA patients? What medical problems do participants have when receiving CIT-013? Researchers will compare CIT-013 to a placebo (a look-alike substance that contains no drug) to see if CIT-013 works to treat the symptoms of RA. Participants will: Take receive CIT-013 or placebo every other week for 6 weeks and 50 mg CIT-013 for 6 weeks Visit the clinic once every 2 weeks for checkups and tests Keep monitor their symptoms during this period

Interventions

DRUGCIT-013 low dose

Subcutaneous injection

Subcutaneous injection

DRUGPlacebo

Subcutaneous injection

CIT-013 medium dose

Sponsors

Citryll BV
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Male or female patients with RA according to the 2010 classification criteria of the American College of Rheumatology (ACR) and the European League Against Rheumatism (EULAR) ≥ 3 months prior to screening * Aged 18-85 * DAS28-CRP ≥ 3.2, with ≥ 3 Swollen Joints, and ≥ 3 Tender Joints, and CRP ≥ ULN at screening and confirmed prior to randomization * Stable on a conventional synthetic disease modifying antirheumatic drug for ≥ 4 weeks (csDMARD). This drug must have been used for ≥ 3 months.

Exclusion criteria

* High clinical activity or disease severity requiring the immediate start of a biological DMARD (bDMARD) or targeted synthetic DMARD (tsDMARD). * Contra-indication for CIT-013 * Current inflammatory joint disease other than RA (Sjogren with active disease is included). * The washout period for bDMARD or JAKi prior to the first dose of investigational product should be at least: 1. ≥ 1 week for etanercept; 2. ≥ 4 weeks for adalimumab, infliximab, certolizumab, golimumab, abatacept, tocilizumab, and sarilumab; 3. ≥ 6 months year for rituximab; 4. ≥ 2 weeks for tsDMARD (either investigational or commercially available treatment). * Treated with ≥ 3 bDMARD or tsDMARD * Injectable corticosteroids or treatment with \> 10 mg/day dose of oral prednisolone or equivalent within 4 weeks prior to screening.

Design outcomes

Primary

MeasureTime frameDescription
The change in DAS28-CRP at week 6 compared to baselineweek 6Efficacy of CIT-013

Secondary

MeasureTime frameDescription
Incidence of TEAEs as assessed by CTCAE12 weeksSafety and tolerability of CIT-013
Maximum Plasma Concentration of CIT-013 before doses4, 6, 10 and 12 weeksCIT-013 levels

Countries

Belgium, Germany, Netherlands, Poland, Spain

Contacts

CONTACTLeonie Middelink
lmiddelink@citryll.com0613328444
STUDY_DIRECTORMaarten Kraan

Citryll BV

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 23, 2026