| Eligibility |
Inclusion Criteria:
1. Written informed consent must be obtained before any assessment is performed
2. Male and female patients 18 years of age or older at Screening
3. Confirmed Sjögren's syndrome according to the 2016 ACR/EULAR classification criteria
4. Seropositive for anti-Ro/SSA antibodies
5. Screening ESSPRI score = 5
6. Able to communicate well with the investigator, to understand and comply with the
requirements of the study.
Exclusion Criteria:
1. Use of other investigational drugs within 5 half-lives of enrollment or within 30 days
whichever is longer, or longer if required by local regulations
2. Presence of another autoimmune rheumatic disease that is active and constitutes the
primary illness
3. Prior use of ianalumab
4. History of receiving:
o Any B-cell depleting therapies, other than ianalumab (e.g., rituximab, other
anti-CD20 mAb, anti-CD22 mAb, or anti-CD52 mAb) administered within 36 weeks prior to
randomization, or as long as B cell count is less than the lower limit of normal or
baseline value prior to receipt of B cell-depleting therapy (whichever is lower)
5. Current use of prednisone >10 mg/day [or equivalent other corticosteroid] or dose
change within 2 weeks prior to dosing
6. Prior treatment with any of the following within 6 months of baseline
1. CTLA4-Fc Ig (abatacept)
2. Anti-TNF-a mAb
3. Intravenous Ig
4. Plasmapheresis
5. i.v. or oral cyclophosphamide
6. i.v. or oral cyclosporine A
7. Patients taking either hydroxychloroquine more than 400 mg/day or methotrexate
more than 25 mg weekly or leflunomide at not stable dose within 3 months prior to
dosing.
8. iscalimab (anti-CD40)
9. belimumab (anti-BAFF mAb)
7. Active viral, bacterial or other infections
8. History of major organ, hematopoietic stem cell or bone marrow transplant
9. History of hypersensitivity to any of the study drugs 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)
10. Required regular use of medications known to cause dry mouth/eyes as a regular and
major side effect, and which have not been on a stable dose for at least 30 days prior
to Screening, or any anticipated change in the treatment regimen during the course of
the study
11. Receipt of live/attenuated vaccine within a 4-week period prior to baseline
12. History of primary or secondary immunodeficiency, or a positive HIV (ELISA and Western
blot) test result
13. History of malignancy of any organ system (other than localized basal cell carcinoma
of the skin, in situ cervical cancer), treated or untreated, within the past 5 years,
regardless of whether there is evidence of local recurrence or metastases.
14. History of head and neck radiation therapy or of having received radioactive iodine
15. Any one of the following screening values of CBC laboratory values:
- Hemoglobin levels below 8.0 g/dL;
- Total leukocyte count less than 2,000/µL;
- Platelets <50 x 109/L (if between 50 and 80, the PI should check that it is
linked to Sjögren's syndrome and not to any other disease);
- Absolute neutrophil count (ANC) <1.0 x 109/L (one re-test is allowed during the
screening period)
16. Positive serology for hepatitis B surface antigen (HBsAg).
Positive serology for hepatitis B core antibody (HBcAb), except if all 3 following
criteria are met:
- Hepatitis B (HBV) quantitative PCR for viral DNA is negative (i.e., <10 IU)
- Prophylactic treatment (with tenofovir or entecavir) initiated latest on day 1
and continued until 12 months after last treatment
- Hepatitis B monitoring is implemented: HBsAg (and HBV DNA) tested every 4 weeks
during treatment and at least every 12 weeks after end of treatment for the
entire duration of the follow-up. Antiviral prophylaxis must be implemented while
on study and up to 12 months after end of study treatment.
17. Positive hepatitis C test result. Participants with a positive HCV antibody test
should have HCV RNA levels measured. Participants with positive (detectable) HCV RNA
should be excluded.
18. Evidence of active tuberculosis (TB) infection (after anti-TB treatment, patients with
history of or latent TB may become eligible according to national guidelines)
19. Pregnant or nursing (lactating) women, where pregnancy is defined as the state of a
female after conception and until the termination of gestation, confirmed by a
positive hCG laboratory test
20. Women of child-bearing potential (WOCBP), defined as all women physiologically capable
of becoming pregnant, unless they are using highly effective methods of contraception
during dosing and for 6 months after stopping of investigational medication. Highly
effective contraception methods include:
- Total abstinence (when this is in line with the preferred and usual lifestyle of
the patient). Periodic abstinence (e.g., calendar, ovulation, symptothermal,
post-ovulation methods) and withdrawal are not acceptable methods of
contraception
- Female sterilization (have had surgical bilateral oophorectomy with or without
hysterectomy) total hysterectomy or tubal ligation at least six weeks before
taking investigational drug. In case of oophorectomy alone, only when the
reproductive status of the woman has been confirmed by follow up hormone level
assessment
- Male sterilization (at least 6 months prior to screening and confirmed as
successful). For female patients in the study, the vasectomized male partner
should be the sole partner for that patient
- Use of oral, (estrogen and progesterone), injected or implanted hormonal methods
of contraception or placement of an intrauterine device (IUD) or intrauterine
system (IUS) or other forms of hormonal contraception that have comparable
efficacy (failure rate <1%), for example hormone vaginal ring or transdermal
hormone contraception. In case of use of oral contraception women should have
been stable on the same pill for a minimum of 3 months before taking
investigational drug.
Women are considered post-menopausal and not of child bearing potential if they have
had 12 months of natural (spontaneous) amenorrhea with an appropriate clinical profile
(e.g., age appropriate, history of vasomotor symptoms) or have had surgical bilateral
oophorectomy (with or without hysterectomy), total hysterectomy or tubal ligation at
least six weeks ago. In the case of oophorectomy alone, only when the reproductive
status of the woman has been confirmed by follow up hormone level assessment is she
considered not of child bearing potential.
If local regulations deviate from the contraception methods listed above to prevent
pregnancy, local regulations apply and will be described in the informed consent form
(ICF).
21. Known contraindication to SonoVue (sulphur hexafluoride microbubbles) ultrasound
contrast agent
22. Participants not registered in the social security system
23. Participants within the exclusion period of a preceding study
24. Any surgical, medical (e.g. uncontrolled hypertension, heart failure or diabetes)
psychiatric or additional physical condition that the investigator feels may
jeopardize the patient in case of participation in this study
25. People deprived of their liberty by a judicial or administrative decision (Article
L1121-6 of the French Public Health Code)
26. Screening Labial minor salivary gland (LMSG) biopsy lymphocyte focus score < 0.3/4 mm2
or B/B+T ratio in the gland < 0.2 (20%)
27. Use of topical ocular prescription medications (excluding artificial tears, gels,
lubricants) that have not been on a stable dose for at least 90 days prior to
treatment, or any anticipated change in the treatment regimen during the course of the
study
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