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A Phase 1/2a Study of DB-2304 in Healthy Adults and SLE/CLE Participants

A Randomized, Double-Blind, Phase 1/2a Study to Evaluate the Safety, Tolerability, PK and PD of DB-2304 for Injection in Healthy Adult Participants and Participants With Systemic Lupus Erythematosus or Cutaneous Lupus Erythematosus

Status
Recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06625671
Enrollment
148
Registered
2024-10-03
Start date
2024-10-04
Completion date
2027-12-30
Last updated
2026-06-02

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

Conditions

Systemic Lupus Erythematosus (SLE) or Cutaneous Lupus Erythematosus

Brief summary

A Phase 1/2a Study of DB-2304 in Healthy Participants and Participants with Systemic Lupus Erythematosus or Cutaneous Lupus Erythematosus

Interventions

DRUGDB-2304

DB-2304

DRUGPlacebo

Placebo

DRUGPrednisone

Prednisone

Sponsors

DualityBio Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
Yes

Inclusion criteria

(Part A): 1. Participants who fully understand the purpose, nature, method, and potential adverse reactions of the study and voluntarily sign the informed consent form (ICF) and agree to participate. 2. Healthy male or female participants; 18 to 55 years of age (both inclusive) on the day of signing ICF; meet the body mass index (BMI) criteria. 3. Based on the investigator assessment, there are no abnormal findings or findings with clinical significance from the medical history consultation, physical examination, vital signs assessment, clinical laboratory tests, and 12-lead ECG. 4. Female participants of childbearing potential or male participants agree to use highly effective contraception during the study. 5. Participants who are willing and able to comply with the prescribed protocol treatment and evaluations Inclusion Criteria (Part B): 1. Participants who fully understand the purpose, nature, method, and potential adverse reactions of the study and voluntarily sign the informed consent form (ICF) and agree to participate. 2. Participants who are willing and able to comply with the prescribed protocol treatment and evaluations. 3. Male or female participants, 18 to 70 years of age (both inclusive) on the day of signing ICF. 4. Currently receiving a stable SLE/CLE treatment regimen of any medication for a period of at least 1 month prior to randomization. For SLE: 4. Meet the European Alliance of Associations for Rheumatology (EULAR)/American College of Rheumatology (ACR) 2019 classification criteria for SLE. 5\. History or presence at Screening of positive antinuclear antibodies (ANA) or anti-double-stranded DNA (anti-dsDNA) antibodies. 6\. At screening have active lupus skin disease defined by the SELENA-SLEDAI at screening and randomization. For CLE: 8. Must have diagnosis of CLE that has been histologically confirmed, with or without systemic LE manifestations. 9.Must have active CLE despite an adequate trial of conventional therapies.

Exclusion criteria

(Part A): 1. Evidence or history of clinically significant diseases. 2. History of herpes zoster (shingles) or recurrent herpes simplex (e.g., oral cold sores or gen-ital sores). 3. Any active or suspected bacterial, viral, fungal, or parasitic infection within 30 days prior to dosing. 4. History of sensitivity to any ingredients of DB-2304. 5. Participants who have undergone surgery within the past 3 months or have plans for sur-gery during the study.

Design outcomes

Primary

MeasureTime frameDescription
TEAEsUp to 112 days after the study treatment administration for Part A, and up to 280 days after the first study treatment administration for Part BTreatment-emergent adverse events
SAEsUp to 112 days after the study treatment administration for Part A, and up to 280 days after the first study treatment administration for Part Bserious adverse events
ECG parametersUp to 112 days after the study treatment administration for Part A, and up to 280 days after the first study treatment administration for Part B12-lead electrocardiograms parameters including HR, PR, QT intervals, QTcF intervals for Fredericia's formula-QT corrected interval), and QRS duration should be determined.
Weight measurementsUp to 112 days after the study treatment administration for Part A, and up to 280 days after the first study treatment administration for Part BChange and Rate of Change from Baseline in weight
Heart Rate measurementsUp to 112 days after the study treatment administration for Part A, and up to 280 days after the first study treatment administration for Part BChange and Rate of Change from Baseline in heart rate
Pulse rate measurementsUp to 112 days after the study treatment administration for Part A, and up to 280 days after the first study treatment administration for Part BChange and Rate of Change from Baseline in pulse rate
Respiratory rate measurementsUp to 112 days after the study treatment administration for Part A, and up to 280 days after the first study treatment administration for Part BChange and Rate of Change from Baseline in respiratory rate
Body temperature measurementsUp to 112 days after the study treatment administration for Part A, and up to 280 days after the first study treatment administration for Part BChange and Rate of Change from Baseline in body temperature

Countries

Australia, United States

Contacts

CONTACTSally Li
sally.li@dualitybiologics.com+86 13910863858
CONTACTCong Zhang
STUDY_DIRECTORLily Hu

DualityBio Inc.

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 3, 2026