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Proof of concept study of rilzabrutinib in adult patients with moderate-to-severe atopic dermatitis

A Phase 2, randomized, double-blind, placebo-controlled, multicenter proof-of-concept study evaluating efficacy and safety of rilzabrutinib in adult patients with moderate-to-severe atopic dermatitis who are inadequate responders or intolerant to topical corticosteroids

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2021-001704-15-DE
Enrollment
160
Registered
2021-08-06
Start date
2021-09-17
Completion date
Unknown
Last updated
2024-09-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Atopic dermatitis MedDRA version: 21.1 Level: LLT Classification code 10003639 Term: Atopic dermatitis System Organ Class: 100000004858

Interventions

Product Name: Rilzabrutinib Product Code: SAR444671 Pharmaceutical Form: Tablet INN or Proposed INN: Rilzabrutinib Current Sponsor code: SAR444671 Concentration unit: mg milligram(s) Concentration typ

Sponsors

Sanofi aventis recherche et developpement
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: - AD as defined by the American Academy of Dermatology Consensus Criteria. - History of AD for at least 12 months prior to baseline as determined by the Investigator through patient interview. - Eczema Area and Severity Index (EASI) score = 12 at screening and = 16 at baseline. - IGA score = 3 (on the 0 to 4 IGA scale) at baseline. - BSA of AD involvement = 10% at baseline. - Documented inadequate response or intolerance to TCS within 6 months prior to baseline visit - Baseline PP-NRS score for maximum itch intensity =4. - All contraceptive use by men and women should be consistent with local regulations regarding the methods of contraception for those participating in clinical studies. - For optional substudy only: Willingness to have 2 tape strips for comparison of baseline and treatment response. Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range 90 F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range 70

Exclusion criteria

Exclusion criteria: - Skin comorbidities that may interfere with study assessments such as psoriasis, tinea corporis, lupus erythematosus. - Conditions that may predispose the patient to excessive bleeding. - Any other clinically significant disease, condition or medical history that, in the opinion of the Investigator, would interfere with participant safety, trial evaluations, and/or trial procedures. - Laboratory abnormalities at the screening visit - History of serious infections requiring intravenous therapy with the potential for recurrence (as judged by the Site Investigator and the Sponsor Medical Monitor), with less than 4 weeks interval between resolution of serious infection and first dose of study drug, or currently active moderate to severe infection at Screening (Grade 2 or higher) including active coronavirus disease 2019 (COVID-19). - Live vaccine except Bacille Calmette Guerin-vaccination within 28 days prior to Day 1 or plan to receive one during the trial; Bacille Calmette Guerin-vaccination within 12 months prior to Screening. - COVID-19 vaccine within 14 days prior to Study Day 1. - Refractory nausea and vomiting, malabsorption, external biliary shunt, or significant bowel resection that would preclude adequate rilzabrutinib/placebo absorption. - Initiation of prescription moisturizers (with or without additives such as ceramide, hyaluronic acid, urea, or filaggrin), topical anesthetics or antihistamines during the screening period. - Use of TCS, topical calcineurin (tacrolimus, and/or pimecrolimus) or topical phosphodiesterase 4 inhibitor within 1 week prior to baseline and as concomitant medication. - Use of systemic corticosteroids within 4 weeks prior to baseline and as concomitant medication. - Phototherapy for AD or regular use (more than 2 visits per week) of a tanning booth/parlor within 4 weeks prior to baseline or likely to be required as concomitant procedure during the study. - Use of mycophenolate mofetil, azathioprine, methotrexate, cyclosporine, dapsone, intravenous immunoglobulin (IVIG), Kineret (anakinra), Enbrel (etanercept), or any other immunosuppressant not mentioned in this exclusion criterion within 4 weeks prior to baseline. - Use of infliximab, adalimumab, golimumab, abatacept, tocilizumab, certolizumab, secukinumab, IFN-?, JAK inhibitors, dupilumab, and any other biologic or targeted-synthetic disease modifier drug not mentioned in this exclusion criterion or in exclusion criterion, as well as plasmapheresis within 12 weeks prior to baseline. - Use of anti-CD20 drugs such as rituximab, ofatumumab, other long-acting biologics within 6 months prior to baseline (or shorter if there is documented B cell reconstitution for anti-CD20 drugs). - Use of proton pump inhibitor drugs such as omeprazole and esomeprazole within 3 days of baseline (it is acceptable to change participant to H2 receptor blocking drugs prior to baseline). - Concomitant use of known strong-to-moderate inhibitors and inducers of cytochrome P450 3A (CYP3A) within 14 days or 5 half-lives (whichever is longer) prior to baseline. - Previous use of a BTK inhibitor. - Has received any investigational drug (or is currently using an investigational device) within the 30 days before baseline, or at least 5 times the respective elimination half-life time (whichever is longer). - Active TB or a history of incompletely treated TB, Quantiferon positive patients, Clinically significant abnormality consistent with prior/active TB infection based upon chest r

Design outcomes

Primary

MeasureTime frame
Main Objective: •Assess the efficacy of rilzabrutinib in participants with atopic dermatitis (AD);Secondary Objective: •Assess the efficacy of rilzabrutinib at different time points •Assess the safety of rilzabrutinib;Primary end point(s): Percent change in Eczema Area and Severity Index (EASI) score;Timepoint(s) of evaluation of this end point: From baseline to Week 16

Secondary

MeasureTime frame
Secondary end point(s): 1. Proportion of participants with Investigator's Global Assessment (IGA) of 0 or 1 (disease free or almost disease free) compared to placebo 2. Proportion of participants achieving EASI-75 - Defined as reduction of EASI score by =75% from baseline 3. Proportion of participants with reduction of weekly average of daily peak pruritus Numerical Rating Scale (PP-NRS) of =4 points 4. Time to onset of effect on pruritus - Defined as =4 points reduction of weekly average of daily PP-NRS from baseline during the 16-week treatment period 5. Absolute change in EASI score 6. Proportion of participants achieving EASI-50/90 7. Change in percent body surface area (BSA) of EASI. 8. Change on weekly average of daily PP-NRS - Based on daily participant assessments documented in their electronic diary 9. Incidence of treatment-emergent adverse events (TEAEs), serious adverse events (SAEs), and adverse events of special interest (AESIs) 10. Incidence of study investigational medicinal product (IMP) discontinuation and withdrawals due to TEAEs ;Timepoint(s) of evaluation of this end point: 1., 2. and 6. At week 16 3., 5., 7., 8. and 10. From baseline to Week 16 9. Up to week 17 4. Until Week 16

Countries

Canada, Czechia, Czech Republic, Germany, Netherlands, Poland, United States

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026