Ianalumab vs placebo in adults with Sjögren's disease and high symptom burden
Official title: A Randomized, Double-blind, Placebo-controlled, 2-arm Multicenter Phase III Study to Assess the Efficacy and Safety of Ianalumab in Participants With Sjogren's Disease With High Symptom Burden (THALASSA)
Run by Novartis · NCT07621809 · Data updated 2026-11-12
A 52-week study will test whether monthly 300 mg ianalumab injections help adults with Sjögren's disease who have high symptom burden.
Quick facts
| Phase | Phase 3 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 570 (estimated) |
| Sponsor | Novartis Industry-sponsored |
| Drugs / interventions | rituximab, ianalumab, iscalimab, belimumab, methotrexate, cyclophosphamide |
| Locations | 72 sites (Peoria, Arizona and 71 other locations) |
| Status | Recruiting |
| Started | July 16, 2026 |
| Main results expected | August 15, 2029 |
| Study ends | August 14, 2033 |
| Registry record updated | November 9, 2026 |
| Trial ID | NCT07621809 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults with Sjögren's disease who are seropositive for anti-Ro/SSA and meet objective dryness and activity criteria, on a stable background of permitted medications.
✕Probably not a fit
Patients with Sjögren's disease who do not have high symptom burden or do not meet the specific eligibility criteria may not benefit.
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 multicenter, double-blind, randomized, placebo-controlled Phase III trial. Participants with Sjögren's disease and high symptom burden are assigned to receive either ianalumab 300 mg subcutaneously or placebo every month for 52 weeks. The study uses strict eligibility criteria including seropositivity for anti-Ro/SSA and objective measures of gland function and dryness. The primary goal is to determine the efficacy and safety of ianalumab in reducing disease activity and symptoms.
Why it matters
Potential benefit: If successful, participants may experience relief from symptoms and improved gland function.
How similar studies have gone: Previous B-cell–depleting approaches have shown promise in Sjögren's disease, but this represents a targeted Phase III evaluation of ianalumab specifically for high-burden symptoms.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Male or female participants ≥ 18 years of age or as per country-specific legal adult age, whichever is higher * Classification of Sjögren's disease according to ACR/EULAR 2016 criteria. * Seropositive for anti-Ro/SSA antibodies at screening * SSSD oral dryness score ≥ 5 and overall SSSD summary score ≥5 collected over 14 consecutive days during the Screening 2 period * Screening ESSDAI biologic and/or hematologic domain \> 0 Note: laboratory abnormalities for scoring must be confirmed as associated with Sjögren's disease and not be due to other underlying conditions. * Stimulated whole salivary flow (sSF) rate \> 0.3 mL/min at screening * Participants taking hydroxychloroquine (≤ 400 mg/day) are allowed to continue their medication, and must have been on a stable dose for at least 4 weeks prior to screening, which should be maintained throughout the 52 weeks of the blinded treatment period. * Predniso(lo)ne ≤ 5 mg/day or equivalent are allowed for up to 16 weeks post-randomization. Exclusion Criteria: * Presence of another autoimmune rheumatic disease that is active and constitutes the principal illness, specifically: * Systemic sclerosis (SSc) * Any other associated connective tissue disease (e.g., lupus nephritis (LN), large vessel vasculitis (LVV), Sharp syndrome (mixed connective tissue disease)) that is active and requires immunosuppressive treatment outside the scope of this trial and would impede on Sjögren's disease organ domain assessments. * Concurrent diagnosis or history of fibromyalgia or overlapping inflammatory diseases * Prior treatment with B-cell-depleting therapy (e.g., rituximab, other anti-CD20 mAb, anti-CD22 mAb, or anti-CD52 mAb) within: * 36 weeks prior to randomization, or * As long as B-cell count is less than the lower limit of normal (LLN) or baseline value prior to receipt of previous B-cell-depleting therapy (whichever is lower) at Screening. * Prior treatment with ianalumab * Prior treatment with any of the following within the given period prior to Screening: * Within 5 half-lives prior to Screening: iscalimab (anti-CD 40 mAb), belimumab (anti-BAFF mAb), abatacept (CTLA4-Fc Ig), anti-tumor necrosis factor alpha (TNFα) biologic agents, immunoglobulins (i.v./s.c.), plasmapheresis, any other investigational biologic medicines under investigation for Sjögren's disease * Within 4 weeks OR drug-specific 5 half-lives elimination period (if longer than 4 weeks) prior to screening: i.v. or oral cyclophosphamide, mycophenolate mofetil (MMF), methotrexate, azathioprine, i.v. or oral cyclosporine A or any other immunosuppressants (e.g., JAK inhibitors or other kinase inhibitors). * History of hypersensitivity to any of the study drugs or their excipients, or to drugs of similar chemical classes (e.g., mAb of IgG1 class) or to any of the constituents of the study drug formulation (sucrose, L-histidine hydrochloride/L-histidine, polysorbate 20).
Where it's running
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Sun Valley Arthritis Center Ltd
Peoria, Arizona, United States Recruiting -
Unity Health Rheumatology
Searcy, Arkansas, United States Recruiting -
Medvin Clinical Research
Van Nuys, California, United States Recruiting -
Clinical Res Of W Florida
Clearwater, Florida, United States Recruiting -
GNP Research
Cooper City, Florida, United States Recruiting -
Clinical Research of West Florida Inc
Tampa, Florida, United States Recruiting
Show 44 more locations
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Willow Rheumatology Wellness
Willowbrook, Illinois, United States Recruiting -
Tufts Medical Center
Boston, Massachusetts, United States Recruiting -
Clinical Research Inst of MI
Saint Clair Shores, Michigan, United States Recruiting -
Arthritis Rheumatology and Bone Disease Associates PA
Voorhees Township, New Jersey, United States Recruiting -
St Lawrence Health System
Potsdam, New York, United States Recruiting -
On Site Clinical Solutions Llc
Charlotte, North Carolina, United States Recruiting -
Carolina Arthritis Associates
Wilmington, North Carolina, United States Recruiting -
RAO Research LLC
Oklahoma City, Oklahoma, United States Recruiting -
West Tennessee Research Institute
Jackson, Tennessee, United States Recruiting -
Shelby Research LLC
Memphis, Tennessee, United States Recruiting -
Novel Research LLC
Bellaire, Texas, United States Recruiting -
Arthritis Care of Texas
Corpus Christi, Texas, United States Recruiting -
Precision Comprehensive Clinical Research Solutions
Euless, Texas, United States Recruiting -
Abigail Neiman MD PA
Houston, Texas, United States Recruiting -
Accurate Clinical Research
League City, Texas, United States Recruiting -
Tekton
Leander, Texas, United States Recruiting -
Arthritis Northwest PLLC
Spokane, Washington, United States Recruiting -
Novartis Investigative Site
Maroochydore, Queensland, Australia Recruiting -
Novartis Investigative Site
Graz, Austria Recruiting -
Novartis Investigative Site
São Paulo, São Paulo, Brazil Recruiting -
Novartis Investigative Site
Sydney, Nova Scotia, Canada Recruiting -
Novartis Investigative Site
Rimouski, Quebec, Canada Recruiting -
Novartis Investigative Site
Sherbrooke, Quebec, Canada Recruiting -
Novartis Investigative Site
Shenzhen, Guangdong, China Recruiting -
Novartis Investigative Site
Nanjing, Jiangsu, China Recruiting -
Novartis Investigative Site
Taiyuan, Shanxi, China Recruiting -
Novartis Investigative Site
Chengdu, Sichuan, China Recruiting -
Novartis Investigative Site
Wenzhou, Zhejiang, China Recruiting -
Novartis Investigative Site
Ningbo, Zhengjiang, China Recruiting -
Novartis Investigative Site
Beijing, China Recruiting -
Novartis Investigative Site
Beijing, China Recruiting -
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Beijing, China Recruiting -
Novartis Investigative Site
Jiujiang, China Recruiting -
Novartis Investigative Site
Bogota, Cundinamarca, Colombia Recruiting -
Novartis Investigative Site
Bogotá, Colombia Recruiting -
Novartis Investigative Site
Brno, Czechia Recruiting -
Novartis Investigative Site
Dijon, France Recruiting -
Novartis Investigative Site
La Roche-sur-Yon, France Recruiting -
Novartis Investigative Site
Le Kremlin-Bicêtre, France Recruiting -
Novartis Investigative Site
Le Mans, France Recruiting -
Novartis Investigative Site
Lille, France Recruiting -
Novartis Investigative Site
Montpellier, France Recruiting -
Novartis Investigative Site
Paris, France Recruiting -
Novartis Investigative Site
Saint-Priest-en-Jarez, France Recruiting
+22 more sites. See ClinicalTrials.gov for the full list.
Study contacts
- Study coordinator: Novartis Pharmaceuticals
- Email: novartis.email@novartis.com
- Phone: 1-888-669-6682
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Other studies for the same condition or treatment. Recruiting studies are listed first.
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Ianalumab plus a thrombopoietin receptor agonist for adults with ITP or Evans syndrome
This study will test whether adding ianalumab to a doctor's chosen TPO-RA is tolerable for adults with immune thrombocytopenia (and an exploratory group with Evans syndrome) who have had prior treatments and are on a stable TPO-RA dose.
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Phase 1 safety test of XmAb657 in healthy adults and people with myositis, scleroderma, or Sjögren's
This study will test whether subcutaneous injections of XmAb657 are safe and well tolerated in healthy adults and people with autoimmune diseases such as idiopathic inflammatory myopathies, systemic sclerosis, or primary Sjögren's syndrome.
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Long-term follow-up of ianalumab with or without stopping treatment for people with lupus nephritis
This 2-year extension will test whether continuing or stopping ianalumab keeps kidney disease under control and is safe for people with lupus nephritis who completed the core study.
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.