A Study of BBT001 in Healthy Volunteers (HVs) and in Adult Patients With Atopic Dermatitis (AD)

Purpose

This is a Phase 1, randomized, blinded, placebo controlled, single-ascending dose (SAD) and multiple-ascending dose (MAD) study of BBT001 in healthy volunteers (HVs) and adult patients with moderate to severe Atopic Dermatitis (AD).

Condition

  • Atopic Dermatitis

Eligibility

Eligible Ages
Between 18 Years and 72 Years
Eligible Sex
All
Accepts Healthy Volunteers
Yes

Inclusion Criteria

  1. Negative pregnancy tests for women of childbearing potential. 2. Willingness to refrain from alcohol consumption for 24 hours prior to each study visit. 3. Non-smokers, healthy current smokers (≤5 cigarettes/day), or ex-smokers. 4. Adequate contraception use (for men and women of childbearing potential). Key Inclusion Criteria (Parts A, B, and D) 1. Age of 18-65 years. 2. Body mass index of 18 to 32 kg/m², weight capped at 120 kg. 3. No clinically significant abnormalities or history of relevant diseases. Key Inclusion Criteria (Parts C and E only) 1. Age of 18-72 years. 2. Body mass index ≥16 kg/m², weight capped at 125 kg. 3. Must have dermatologist-confirmed chronic atopic dermatitis (≥12 months). Inadequate response to topical treatments or where they are medically inadvisable. 4. Moderate to severe atopic dermatitis 5. Validated investigator's global assessment for atopic dermatitis (vIGA-ADTM) score ≥3 6. Atopic lesions cover ≥10% of body surface area (BSA) 7. Average peak pruritus numeric rating scale (PP-NRS) score ≥4 in the 7 days before randomization.

Exclusion Criteria

  1. Significant health issues, such as: diabetes, positive tests for human immunodeficiency virus (HIV), hepatitis C virus (HCV), or hepatitis B surface antigen (HBsAg), immunodeficiencies, autoimmune diseases, or cancer, history of conditions predisposing to infections. 2. History of major metabolic, dermatological, liver, kidney, hematological, or other significant disorders. 3. Clinically relevant abnormal lab results, including low blood counts, liver issues, or abnormal kidney function. 4. Positive drug/alcohol tests or abnormal vital signs at screening or Day -1. 5. Abnormal Electrocardiogram (ECG) findings 6. History of drug/alcohol abuse in the past 2 years. 7. Donated >500mL blood within 2 months of screening. 8. History of severe allergic reactions or hypersensitivity. Key Exclusion Criteria (Parts A, B, and D only) 1. History of atopic dermatitis Key Exclusion Criteria (Parts C and E only) 1. Skin diseases other than atopic dermatitis, significant tattoos, or scarring. 2. Receipt of immunoglobulin or blood products within 30 days. 3. Atopic dermatitis with ocular symptoms or chronic ocular steroid use. 4. Chronic pruritus from conditions other than atopic dermatitis. 5. Acute/treated infections or chronic skin infections. 6. Current use of sedating antihistamines or corticosteroids.

Study Design

Phase
Phase 1
Study Type
Interventional
Allocation
Randomized
Intervention Model
Parallel Assignment
Primary Purpose
Treatment
Masking
Triple (Participant, Investigator, Outcomes Assessor)

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
Part A Single Ascending Dose BBT001
A single dose of BBT001 will be administered in healthy volunteers
  • Drug: BBT001
    BBT001 will be administered
Experimental
Part B Multiple Ascending Dose BBT001
Multiple doses of BBT001 will be administered in healthy volunteers.
  • Drug: BBT001
    BBT001 will be administered
Experimental
Part C Multiple Ascending Dose BBT001
Multiple doses of BBT001 will be administered in patients with atopic dermatitis.
  • Drug: BBT001
    BBT001 will be administered
Placebo Comparator
Part A Single Ascending Dose Placebo
A single dose of Placebo will be administered in healthy volunteers
  • Drug: Placebo
    Placebo will be administered
Placebo Comparator
Part B Multiple Ascending Dose Placebo
Multiple doses of Placebo will be administered in healthy volunteers.
  • Drug: Placebo
    Placebo will be administered
Placebo Comparator
Part C Multiple Ascending Dose Placebo
Multiple doses of Placebo will be administered in patients with atopic dermatitis.
  • Drug: Placebo
    Placebo will be administered
Active Comparator
Part D Single Ascending Dose BBT001
A single dose of BBT001 will be administered in healthy volunteers
  • Drug: BBT001
    BBT001 will be administered
Placebo Comparator
Part D Single Ascending Dose Placebo
A single dose of placebo will be administered in healthy volunteers
  • Drug: Placebo
    Placebo will be administered
Active Comparator
Part E Multiple Ascending Dose BBT001 - Dose Level 1
Multiple doses of BBT001 will be administered in patients with atopic dermatitis.
  • Drug: BBT001
    BBT001 will be administered
Placebo Comparator
Part E Multiple Ascending Dose Placebo
Multiple doses of placebo will be administered in patients with atopic dermatitis.
  • Drug: Placebo
    Placebo will be administered
Active Comparator
Part E Multiple Ascending Dose BBT001 - Dose Level 2
Multiple doses of BBT001 will be administered in patients with atopic dermatitis
  • Drug: BBT001
    BBT001 will be administered

Recruiting Locations

OptiSkin Medical
New York, New York 10128

Equity Medical, LLC
The Bronx, New York 10455

More Details

Status
Recruiting
Sponsor
Bambusa Therapeutics

Study Contact

Lisa Li
+1 617-848-6188
Lisa.Li@bambusatx.com

Detailed Description

This study a is a randomized, double-blinded, placebo-controlled single (SAD) and multiple-ascending dose (MAD) study to evaluate safety, tolerability, pharmacokinetics, immunogenicity, pharmacodynamics, and exploratory clinical activity of BBT001 in healthy volunteers (HVs) and in adult patients with atopic dermatitis. BBT001 is a drug candidate being developed for the treatment of atopic dermatitis.