Dermatitis, Atopic, Dermatitis Eczema, Pruritus
Conditions
Brief summary
This is an ascending dose escalation study to test the safety, tolerability and preliminary efficacy of ASN008 TG in first-in-human subjects
Detailed description
This is a two part, randomized, blinded, vehicle-controlled study to determine a safe and tolerable dose of ASN008 TG. Part A will asses a single ascending dose of ASN008 TG in cohorts of healthy volunteers, while Part B will assess multiple ascending doses of TG, to be determined (TBD) based on Part A safety and tolerability, in patients with mild-to-moderate dermatitis. Results from Part A and B will characterize safety, tolerability and pharmacokinetics. Part B patients will be assessed for changes in pruritus based on a numerical rating scale (NRS) of pruritus at baseline and on Day 15.
Interventions
ASN008 TG
Placebo TG
Sponsors
Study design
Masking description
Part A: Double blinded, with exception of unblinded dispensing pharmacist Part B: Double blinded
Intervention model description
Phase 1, multicenter, double-blind, vehicle-controlled, randomized ascending doses trial.
Eligibility
Inclusion criteria
Part A - Healthy Volunteers: * Written informed consent obtained prior to any required study-related procedure * Healthy female or male subject aged 18 to 65 * Willing to use medically effective methods of birth control * Females of reproductive potential must have a negative serum pregnancy test at screening and negative serum or urine pregnancy test prior to first study drug application on Day 1 * Non-smoker (no nicotine products for at least 6 months prior to screening) * BMI ≥18.5 kg/m2 and ≤32.0 kg/m2 with minimum weight of 60 kg Part B- Subjects with AD: * Written informed consent obtained prior to any required study-related procedure * Confirmed diagnosis of active atopic dermatitis (AD) * History of AD for at least 6 months prior to Day 1 with an investigator global assessment ≥3 and body surface area covered with 1-10% AD * Pruritus score (NRS)≥ 5 at screening and NRS ≥7 on Day 1
Exclusion criteria
Both Part A and Part B: * Pregnant or breast-feeding women * Skin disease that may interfere with study assessments * Febrile illness within 6 days prior to Day 1, history of cancer within 5 years of Day 1, major surgery within 8 weeks prior to Day1, known immunodeficiencies, positive for hepatitis B or C or HIV infection * Significant medical/surgical history or condition or current physical/laboratory/ECG/ vitals signs abnormality that might compromise the subject * Corrected QT duration ≥450 milliseconds or other significant ECG abnormality * Received marketed or investigational biological agent within 12 weeks prior to Day 1 or JAK inhibitor or nonbiological product or device within 4 weeks of Day 1 or within 8 weeks of Day 1 if investigational product used or any drug/ substance that is a strong inhibitor or inducer of CYP3A4 or CYP2D6 * Suspected hypersensitivity/allergy to lidocaine * Significant drug or alcohol abuse or mental illness in 2 years prior to Day 1 Part A Only- Healthy Volunteers: -Used medications or skin emollients within 2 weeks prior to Day 1 unless approved by investigator and sponsor Part B Only - Subjects with AD: * Has infected atopic dermatitis * Used dupilumab 12 weeks prior to Day 1 * Used doxepin, hydroxyzine or diphenhydramine, urea containing topical products within 1 week prior to Day 1 * Used systemic antibiotics or topical medicated treatment or other systemic treatments that could affect AD 2 weeks prior to Day 1 * Received any UV-B phototherapy, excimer laser treatment or psoralen-UV-A treatment within 4 weeks prior to Day 1
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Evaluate safety and tolerability of ASN008 topical gel to define a maximum tolerated dose (Part A and B) | Part A: 14 days; Part B: 22 days | Analyze incidence of treatment-emergent adverse events (TEAE) |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Calculate the Pharmacokinetic Half-life (Part A and B) | 7 days and 16 days | Derive maximum blood plasma concentration of Time required for ASN008 concentration to decrease by 50% |
| Calculate the Pharmacokinetic maximum concentration (Part A and B) | 7 days and 16 days | Maximum concentration of ASN008 achieved after dosing |
| Calculate area under the plasma concentration versus time curve (Part A and B) | 7 days and 16 days | A plot of the concentration of ASN008 in plasma over time |
| Change from baseline in Eczema Area and Severity Score (EASI) in AD subjects (Part B) | 22 days | Measurement of area and severity of atopic dermatitis based on composite score 0 to 72 encompassing degree of erythema, induration, excoriation and lichenification; each scored from 0 to 3 with 0 indicating none and 3 indicating severe |
| Change from baseline in Investigator Global Assessment Score in AD subjects (Part B) | 22 Days | 5 point morphological assessment of overall disease severity scored from 0 to 4 with 0 indicating clear (no inflammation) and 4 indicating severe (marked erythema) |
| Change from baseline in pruritus NRS in AD subjects (Part B) | 22 days | Numeric Rating Scale ranging from 0 to 10; 0 indicates no itching; 10 indicates worst possible itching; Rating of pruritis based degree, duration, direction, disability, and distribution |
Countries
Canada, United States