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ATI-045 Versus Placebo in Patients With Moderate-to-Severe Atopic Dermatitis

A Randomized, Double-Blinded, Placebo-Controlled Study to Evaluate the Efficacy and Safety of ATI-045 in Patients With Moderate-to-Severe Atopic Dermatitis

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07011706
Enrollment
110
Registered
2025-06-10
Start date
2025-05-30
Completion date
2026-10-01
Last updated
2026-03-25

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

Conditions

AD, Atopic, Atopic Dermatitis, Dermatitis, Eczema

Brief summary

This study evaluates ATI-045 versus placebo in patients with Moderate-to-Severe Atopic Dermatitis.

Detailed description

A Randomized, Double-Blinded, Placebo-Controlled Study to Evaluate the Efficacy and Safety of ATI-045 in Patients with Moderate-to-Severe Atopic Dermatitis.

Interventions

ATI-045 group

DRUGPlacebo

Placebo group

Sponsors

Aclaris Therapeutics, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

* Diagnosis of chronic atopic dermatitis that has been present for ≥ 6 months before the screening visit and with no significant AD flares during the past 4 weeks before screening * Have active moderate to severe AD at screening and baseline visits * EASI score ≥ 16 and ≥10% BSA at the screening and baseline visits * History of inadequate response to treatment for AD with topical medications; or determination that topical treatments are otherwise medically inadvisable (e.g., because of important side effects or safety risks) * Patient applied a stable dose of non-medicated topical moisturizer (ideally once or twice daily) for ≥ 7 days prior to the baseline visit and agrees to continue use during study

Exclusion criteria

* Treatment with any of the following: 1. Intravenous immunoglobulin within 12 weeks prior to the baseline visit (W0D1) 2. Systemic antibiotics within 2 weeks prior to the baseline visit (W0D1) 3. Topical antibiotics within 1 week prior the baseline visit (W0D1) 4. Topical medicated treatment that could affect atopic dermatitis should be prohibited for at least 2 weeks prior to baseline visit. Example: topical corticosteroids, crisaborole, calcineurin inhibitors, ruxolitinib, roflumilast, tars, antimicrobials, medical devices, and bleach baths. 5. Topical products containing urea within 1 week prior to baseline visit (W0D1) 6. Doxepin, hydroxyzine, or diphenhydramine within 1 week prior to the baseline visit (W0D1) 7. Patient has used systemic treatments (other than biologics) that could affect AD less than 4 weeks or 5 half-lives (whichever is longer) prior to the baseline visit (W0D1), including, but not limited to, retinoids, calcineurin inhibitors, methotrexate, cyclosporine, hydroxycarbamide (hydroxyurea), azathioprine, oral/injectable corticosteroids, baricitinib, upadacitinib, and abrocitinib. 8. Biologics for AD treatments (such as dupilumab, tralokinumab, lebrikizumab, investigational biologics) within 5 half- lives or 12 weeks, whichever is longer prior to the baseline visit (W0D1) 9. An investigational drug (non-biologic) within 4 weeks or within 5 half-lives (if known), whichever is longer prior to the baseline visit (W0D1) 10. Phototherapy and photochemotherapy for AD within 4 weeks prior to the baseline visit (W0D1) 11. A live (attenuated) vaccine within 12 weeks prior to the baseline visit (W0D1) * History of anaphylaxis following biologic therapy. * History of allergy to corticosteroids, diphenhydramine, hydroxyzine, cetirizine, or fexofenadine.

Design outcomes

Primary

MeasureTime frameDescription
Percent Change in Eczema Area and Severity Index (EASI)Baseline to Week 24Percent change from baseline in EASI score at Week 24

Secondary

MeasureTime frameDescription
Investigator Global Assessment (vIGA) treatment success (IGA-TS)Baseline to Week 24Proportion of patients with validated Investigator Global Assessment (vIGA) treatment success (IGA-TS)
EASI reductionBaseline to Week 24Proportion of patients with EASI reduction of 75% (EASI75), 50% (EASI50), 90% (EASI90)
Peak Pruritus Numerical Rating Scale (PP-NRS) scoreBaseline to Week 24Change and percent change from baseline in weekly average of the daily Peak Pruritus Numerical Rating Scale (PP-NRS) score
PP-NRS improvementBaseline to Week 24Proportion of patients with a 4-point improvement or greater from baseline in weekly average of the daily Peak Pruritus Numerical Rating Scale (PP-NRS)
Body Surface Area (BSA)Baseline to Week 24Change from baseline in BSA
Incidence and severity of safety measurementsFrom Baseline to Week 34Incidence and severity of treatment-emergent adverse events (TEAEs) and serious adverse events (SAEs) after first study drug dose on W0D1 until patient's last visit.
Anti-ATI-045 antidrug antibody (ADA)From Baseline to Week 34ADA evaluation

Countries

Canada, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 26, 2026