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RecruitingNCT06808477Updated Sep 29, 2026

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

A Phase 1 interventional study of BBT001 and Placebo in Atopic Dermatitis, sponsored by Bambusa Therapeutics. Recruiting at 14 sites in 4 countries. Open to participants aged 18 Years to 72 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-09-29.

Sponsored by Bambusa Therapeutics · Phase 1, Interventional, and Treatment

Phase
Phase 1
Study type
Interventional
Enrollment
237
Allocation
Randomized
Ages
18 Years to 72 Years
Sex
All
01

Study summary

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).

Read the 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.

02

Conditions studied

  • Atopic Dermatitis

Browse trials for

03

Who can participate

Ages eligible
18 Years to 72 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Eligibility criteria

Key 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.

Key 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.
04

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
237 participants (estimated)

Study arms

  • Experimental
    Part A Single Ascending Dose BBT001

    A single dose of BBT001 will be administered in healthy volunteers

    Drug: BBT001

  • Experimental
    Part B Multiple Ascending Dose BBT001

    Multiple doses of BBT001 will be administered in healthy volunteers.

    Drug: BBT001

  • Experimental
    Part C Multiple Ascending Dose BBT001

    Multiple doses of BBT001 will be administered in patients with atopic dermatitis.

    Drug: BBT001

  • Placebo comparator
    Part A Single Ascending Dose Placebo

    A single dose of Placebo will be administered in healthy volunteers

    Drug: Placebo

  • Placebo comparator
    Part B Multiple Ascending Dose Placebo

    Multiple doses of Placebo will be administered in healthy volunteers.

    Drug: Placebo

  • Placebo comparator
    Part C Multiple Ascending Dose Placebo

    Multiple doses of Placebo will be administered in patients with atopic dermatitis.

    Drug: Placebo

  • Active comparator
    Part D Single Ascending Dose BBT001

    A single dose of BBT001 will be administered in healthy volunteers

    Drug: BBT001

  • Placebo comparator
    Part D Single Ascending Dose Placebo

    A single dose of placebo will be administered in healthy volunteers

    Drug: Placebo

  • 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

  • Placebo comparator
    Part E Multiple Ascending Dose Placebo

    Multiple doses of placebo will be administered in patients with atopic dermatitis.

    Drug: Placebo

  • 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

Interventions

  • DrugBBT001

    BBT001 will be administered

  • DrugPlacebo

    Placebo will be administered

05

What researchers measure

Primary outcomes

  1. Number of participants with adverse events following single and multiple administration of BBT001

    Incidence, relatedness, and severity of adverse events graded per NCI CTCAE v5.0.

    Time frame: Parts A and D - Up to Day 141; Parts B, C, and E - Up to Day 169 post first dose administration

  2. Number of participants with change in serum blood parameters

    Laboratory assessments include hematology, blood chemistry and coagulation test

    Time frame: Parts A and D - Up to Day 141; Parts B, C, and E - Up to Day 169 post first dose administration

  3. Number of participants with change in vital sign measurements following treatment administration.

    Blood pressure and heart rate will be assessed.

    Time frame: Parts A and D - Up to Day 141; Parts B, C, and E - Up to Day 169 post first dose administration

  4. Number of participants with change in physical examination following treatment administration.

    Physical examination will be assessed.

    Time frame: Parts A and D - Up to Day 141; Parts B, C, and E - Up to Day 169 post first dose administration

  5. Number of participants with change in 12-lead ECG readings

    12-lead ECG will be assessed.

    Time frame: Parts A and D - Up to Day 141; Parts B, C, and E - Up to Day 169 post first dose administration

Secondary outcomes

  1. Pharmacokinetics parameters - maximum observed Concentration (Cmax)

    Maximum observed concentration of the study drug in serum will be analyzed for all subjects

    Time frame: At specified timepoints pre-dose and up to 169 days post first dose administration

  2. Pharmacokinetics parameters - Time for maximum observed Concentration (Tmax)

    Serum PK Tmax will be analyzed for all subjects

    Time frame: At specified timepoints pre-dose and up to 169 days post first dose administration

  3. Pharmacokinetics parameters - Area under the curve (AUC)

    Area under the curve of the study drug in serum will be analyzed for all subjects

    Time frame: At specified timepoints pre-dose and up to 169 days post first dose administration

  4. Pharmacokinetics parameters - Volume of distribution (Vz)

    Volume of distribution of the study drug in serum will be analyzed for all subjects

    Time frame: At specified timepoints pre-dose and up to 169 days post first dose administration

  5. Pharmacokinetics parameters - Total clearance (CL)

    Total clearance of the study drug in serum will be analyzed for all subjects

    Time frame: At specified timepoints pre-dose and up to 169 days post first dose administration

  6. Pharmacokinetics parameters - Elimination Half-life (t1/2).

    Elimination half-life of the study drug in serum will be analyzed for all subjects

    Time frame: At specified timepoints pre-dose and up to 169 days post first dose administration

  7. The immunogenicity of BBT001 is measured as the number and percentage of subjects who develop Anti-Drug Antibodies (ADA).

    Serum Anti-Drug Antibodies will be analyzed for all subjects

    Time frame: At specified timepoints pre-dose and up to 169 days post first dose administration

06

Study locations

12 of 14 sites recruiting
  • First OC Dermatology
    Irvine, California 92614, United States
    Recruiting
  • OptiSkin Medical
    New York, New York 10128, United States
    Recruiting
  • Equity Medical, LLC
    The Bronx, New York 10455, United States
    Recruiting
  • Fremantle Dermatology
    Fremantle, Western Australia 6160, Australia
    Recruiting
  • Linear Clinical Research
    Perth, Western Australia 6009, Australia
    Completed
  • Optimal Clinical Trials Central Auckland
    Grafton, Auckland 1010, New Zealand
    • Arna Letica · Contact
    Recruiting
  • Aotearoa Clinical Trials
    Otahuhu, Auckland 2025, New Zealand
    Withdrawn
  • Pacific Clinical Research Network (PCRN) - Auckland
    Takapuna, Auckland 0622, New Zealand
    • Paul Hamilton · Contact
    Recruiting
  • Optimal Clinical Trials Ltd - Christchurch
    Christchurch, New Zealand
    Recruiting
  • Pacific Clinical Research Network (PCRN) Wellington
    Upper Hutt, 5018, New Zealand
    • Tim Humphrey · Contact
    Recruiting
  • Wojewódzki Specjalistyczny Szpital im. Dr. Wł. Biegańskiego w Łodzi
    Lodz, 91-347, Poland
    Recruiting
  • Uniwersytecki Szpital Kliniczny im. Fryderyka Chopina w Rzeszowie
    Rzeszów, 35-055, Poland
    Recruiting
  • Państwowy Instytut Medyczny MSWiA
    Warsaw, 02-507, Poland
    Recruiting
  • Cityclinic Przychodnia Lekarsko-Psychologiczna Matusiak Spółka Partnerska
    Wroclaw, 50-566, Poland
    Recruiting
07

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

08

Registry details

Key details

Study ID
NCT06808477
Lead sponsor
Bambusa Therapeutics
Responsible party
Sponsor
First posted
Feb 5, 2025
Start date
Feb 27, 2025
Primary completion
Feb 28, 2027 (estimated)
Completion
Feb 28, 2027 (estimated)
Last update
Sep 29, 2026

Study contacts

Lisa Li
Contact
Lisa.Li@bambusatx.com
+1 617-848-6188
Lisa Li
study director · Bambusa Therapeutics, Inc.

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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