Clinical trial Recruiting at 72 sites Phase 3 Interventional Ages 18 and up

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

PhasePhase 3
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment570 (estimated)
SponsorNovartis
Industry-sponsored
Drugs / interventionsrituximab, ianalumab, iscalimab, belimumab, methotrexate, cyclophosphamide
Locations72 sites (Peoria, Arizona and 71 other locations)
StatusRecruiting
StartedJuly 16, 2026
Main results expectedAugust 15, 2029
Study endsAugust 14, 2033
Registry record updatedNovember 9, 2026
Trial IDNCT07621809 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

  • 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
  • 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
  • Novartis Investigative Site
    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

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

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.