DDY391 in Sjögren's disease: see if it works and is safe
Official title: A Randomized, Double-blind, Placebo-controlled, Multicenter Phase 2a/b Study Assessing the Efficacy, Safety and Tolerability of DDY391 in Participants With Sjögren's Disease
Run by Novartis · NCT07737743 · Data updated 2026-11-12
This study tests whether DDY391 is effective and safe for people with Sjögren's disease over up to 52 weeks.
Quick facts
| Phase | Phase 2 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years to 100 Years |
| Sex | All |
| Enrollment | 344 (estimated) |
| Sponsor | Novartis Industry-sponsored |
| Drugs / interventions | belimumab, cyclophosphamide |
| Locations | 31 sites (Avondale, Arizona and 30 other locations) |
| Status | Recruiting |
| Started | August 24, 2026 |
| Main results expected | February 19, 2029 |
| Study ends | March 19, 2029 |
| Registry record updated | November 9, 2026 |
| Trial ID | NCT07737743 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults with Sjögren's disease, meeting ACR/EULAR 2016 criteria, with positive anti-Ro antibodies or biopsy-supported salivary gland inflammation, and stable background medications within specified limits.
✕Probably not a fit
Individuals with active other autoimmune diseases, or high-dose hydroxychloroquine use beyond 400 mg/day, may not benefit or be excluded from participation.
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 phase 2a/b randomized, double-blind, placebo-controlled, multicenter trial in adults with Sjögren's disease. Participants are assigned to DDY391 or placebo across three parts to explore dose response and determine dose selection for future trials. The study includes up to 8 weeks of screening, a 52-week treatment period, and 4 weeks of safety follow-up after the last dose. Key outcomes focus on efficacy, safety, and tolerability over the treatment period.
Why it matters
Potential benefit: Participants may experience improved disease symptoms and better quality of life if DDY391 proves beneficial and safe.
How similar studies have gone: Previous phase 2 studies in similar autoimmune targets have shown signal of efficacy with acceptable safety, but this exact approach is an early phase (2a/2b) in Sjögren's disease.
Who can join: the full rules
Show full inclusion / exclusion criteria
Key Inclusion Criteria: • Participants must have a diagnosis of SjD according to the ACR/EULAR 2016 classification criteria at screening: \- Positive anti-Ro (SSA) antibodies at screening. Participants negative for anti-Ro/SSA antibodies are eligible if they have documented previous biopsy showing evidence of salivary gland inflammation consistent with SjD. Key Exclusion Criteria: * Presence of another autoimmune rheumatic disease that is active at screening and constitutes the principal illness. * Exclusion based on medications being used for SjD: * Participants taking \> 400 mg/day hydroxychloroquine are excluded. Participants taking ≤400 mg/day hydroxychloroquine should be on a stable dose for at least 4 weeks prior to randomization. * Participants taking \> 400 mg/day hydroxychloroquine are excluded. Participants on ≤ 400 mg/day of hydroxychloroquine should be on a stable dose for at least 4 weeks prior to randomization. * Prior treatment with any of the following within 3 months prior to randomization: belimumab, abatacept, anti-tumor necrosis factor alpha biologic agents, immunoglobulins, plasmapheresis, intravenous (i.v.) or oral cyclophosphamide, mycophenolate mofetil, i.v. or oral cyclosporine A, or any other immunosuppressants (e.g., JAK inhibitors or other kinase inhibitors, IL-2, anti-IL-6, anti-IL-17). * Previous treatment with any cell-depleting therapies, including but not limited to anti-CD20, unless ≥ 12 months prior to screening. * Any viral, bacterial or other infections at the time of screening or randomization, or history of recurrent clinically significant infection or of recurrent bacterial infection. * History of malignancy of any organ system (other than localized non melanoma carcinoma of the skin or in situ cervical cancer) within the last five years of randomization or any malignancy not in remission. Other protocol-defined inclusion/exclusion criteria may apply.
Where it's running
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Arizona Arthritis and Rheumatology Associates PLLC
Avondale, Arizona, United States Recruiting -
Clinical Res Of W Florida
Clearwater, Florida, United States Recruiting -
Clinical Research of West Florida Inc
Tampa, Florida, United States Recruiting -
Chicago Clinical Research Inst
Chicago, Illinois, United States Recruiting -
Willow Rheumatology Wellness
Willowbrook, Illinois, United States Recruiting -
RAO Research LLC
Oklahoma City, Oklahoma, United States Recruiting
Show 25 more locations
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Altoona Center for Clin Res
Duncansville, Pennsylvania, United States Recruiting -
Rheumatology Specialty Center - Willow Grove Office
Willow Grove, Pennsylvania, United States Recruiting -
Shelby Research LLC
Memphis, Tennessee, United States Recruiting -
Stryde Research-Allen Arthritis
Allen, Texas, United States Recruiting -
Novel Research LLC
Bellaire, Texas, United States Recruiting -
Arthritis Care of Texas
Corpus Christi, Texas, United States Recruiting -
Novartis Investigative Site
Southport, Queensland, Australia Recruiting -
Novartis Investigative Site
Nedlands, Western Australia, Australia Recruiting -
Novartis Investigative Site
Rimouski, Quebec, Canada Recruiting -
Novartis Investigative Site
Sherbrooke, Quebec, Canada Recruiting -
Novartis Investigative Site
Trois-Rivières, Quebec, Canada Recruiting -
Novartis Investigative Site
Hefei, Anhui, China Recruiting -
Novartis Investigative Site
Nanjing, Jiangsu, China Recruiting -
Novartis Investigative Site
Taiyuan, Shanxi, China Recruiting -
Novartis Investigative Site
Beijing, China Recruiting -
Novartis Investigative Site
Beijing, China Recruiting -
Novartis Investigative Site
Bogota, Cundinamarca, Colombia Recruiting -
Novartis Investigative Site
Paris, France Recruiting -
Novartis Investigative Site
Kaposvár, Hungary Recruiting -
Novartis Investigative Site
Kfar Saba, Israel Recruiting -
Novartis Investigative Site
Petah Tikva, Israel Recruiting -
Novartis Investigative Site
Ramat Gan, Israel Recruiting -
Novartis Investigative Site
Tel Aviv, Israel Recruiting -
Novartis Investigative Site
Tsrifin, Israel Recruiting -
Novartis Investigative Site
Groningen, Provincie Groningen, Netherlands Recruiting
Study contacts
- Study coordinator: Novartis Pharmaceuticals
- Email: novartis.email@novartis.com
- Phone: 1-888-669-6682
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.