Rheumatoid arthritis trials in Bulgaria

In Bulgaria 10 Also abroad 351

10 trials · From ClinicalTrials.gov and EU CTIS (euclinicaltrials.eu), checked 11 November 2026. Ask the study team whether a trial fits you.

Phase 1Taking people
A clinical study to assess if a new investigational medicinal product called JJP-1212 is safe, tolerable and able to induce a specific immune response in humans
Where
Sofia
Age
18 years and over
People
76 worldwide
Run by
Jjp Biologics Sp. z o.o.
See details and how to join2023-508661-33-00 · EU 2023-508661-33-00
Phase 1Taking people
A Phase 1 Study of JADE201 in Participants With Rheumatoid Arthritis
Where
Sofia
Age
18 years to 70 years
People
36 worldwide
Run by
Jade Biosciences, Inc.
See details and how to joinNCT07533955
Phase 2Taking people
A Study to Investigate Efficacy and Safety of AZD1163 in Participants With Rheumatoid Arthritis
Where
Haskovo, Pleven, Sofia
Age
18 years and over
People
320 worldwide
Run by
AstraZeneca
See details and how to joinNCT07276581
Phase 2Taking people
A study to investigate how well and safe a trial drug called AZD1163, administered as an injection, works in improving symptoms and inflammation in adult participants with moderately to severely active rheumatoid arthritis.
Where
Haskovo, Pleven, Sofia, Sofiya
Age
18 years and over
People
97 worldwide
Run by
AstraZeneca AB
See details and how to join2025-522076-85-00 · EU 2025-522076-85-00
Phase 1Taking people
Phase 1 Single Dose Study of JADE201 in Participants with Rheumatoid Arthritis
Where
Sofiya
Age
18 years and over
People
24 worldwide
Run by
Jade Biosciences Inc.
See details and how to join2025-524746-96-00 · EU 2025-524746-96-00
Phase 2Not yet taking people in Bulgaria
A study to assess the safety and efficacy of different doses of ELV001 to treat active rheumatoid arthritis in patients with an inadequate response to methotrexate and tumor necrosis factor inhibition (START SYNERGY)
Where
Haskovo, Pleven, Plovdiv, Ruse, Sofia, Sofiya, Vratsa
Age
18 years and over
People
95 worldwide
Run by
Elevara Medicines Limited
See details and how to join2025-524005-32-00 · EU 2025-524005-32-00
Phase 2Taking people
AlloNK®, an Allogeneic Non-genetically Modified, Cord Blood-derived NK Cell Therapy, in Combination With Rituximab, Studied in Relapsing Forms of B-cell Dependent Rheumatologic Diseases.
Where
Plovdiv, Sofia
Age
18 years and over
People
90 worldwide
Run by
Artiva Biotherapeutics, Inc.
See details and how to joinNCT06991114 · EU 2025-520461-41-00
Phase 1Taking people
A phase Ib, open-label, ascending dose study to assess safety, tolerability and pharmacokinetics of PIT565 in participants with rheumatoid arthritis (RA)
Where
Sofiya
Age
18 years and over
People
40 worldwide
Run by
Novartis Pharma AG
See details and how to join2024-520196-27-00 · EU 2024-520196-27-00
Phase 2Taking people
A Dose Response Study to Evaluate the Efficacy and Safety of Oral AP1189 Administered in Disease-Modifying Anti-Rheumatic Drug (DMARD) naïve Participants Participants With Early Rheumatoid Arthritis
Where
Sofia, Vratsa
Age
18 years and over
People
240 worldwide
Run by
SynAct Pharma Aps
See details and how to joinNCT06671054
Phase 1Not yet taking people in Bulgaria
A Phase 1, Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of Pimozide after Multiple Dose Administration in Subjects with Rheumatoid Arthritis
Where
Sofiya
Age
18 years and over
People
24
Run by
Generos Biopharma Ltd.
See details and how to join2023-507521-41-01 · EU 2023-507521-41-01