RecruitingHER2-positive Advanced Solid Tumor
A Phase 1/2a Study of DB-1303/BNT323 in Advanced/Metastatic Solid Tumors
Eligible age
18+ yrs
Accepts
All genders
Locations
21 states
Healthy volunteers
No
See if you qualify for this study
Answer a few quick questions about your location and health. Takes about a minute.
About this study
This is a dose-escalation and dose-expansion Phase 1/2a trial to evaluate the safety and tolerability of DB-1303/BNT323 in subjects with advanced solid tumors that express HER2.
Sponsor: DualityBio Inc.
You may qualify if…
- ✓ Has a pathologically documented HER2-positive or HER2-expressing (except for cohort 2h where the requirement is HER2-null), advanced/unresectable, recurrent, or metastatic malignant solid tumor that is refractory to or intolerable with standard treatment, or for which no standard treatment is available.
- ✓ At least 1 measurable lesion (per RECIST 1.1)
- ✓ Provide signed informed consent
- ✓ ECOG performance status (PS) of 0-1.
- ✓ LVEF ≥ 50% by ECHO or MUGA
- ✓ Adequate organ functions
- ✓ Provide pre-existing diagnosis of HER2 status or resected tumor samples or undergo fresh tumor biopsy for HER2 testing.
- ✓ Life expectancy of ≥ 3 months.
You may not qualify if…
- ✕ History of symptomatic CHF (New York Heart Association \[NYHA\] classes II-IV) or serious cardiac arrhythmia requiring treatment.
- ✕ History of myocardial infarction or unstable angina within 6 months before Day 1.
- ✕ Average QTcF \> 450 ms in males and \> 470 ms in females
- ✕ History of clinically significant lung diseases
- ✕ Uncontrolled infection requiring IV antibiotics, antivirals, or antifungals.
- ✕ HIV infection with AIDS defining illness or active viral hepatitis.
- ✕ Clinically active brain metastases
- ✕ Unresolved toxicities from previous anticancer therapy, defined as toxicities not yet resolved to NCI-CTCAE version 5.0, Grade ≤ 1 or baseline.
Where it's recruiting
California
Cerritos · Los Angeles · San Diego
District of Columbia
Washington D.C.
Florida
Coral Springs · Lakeland · Margate · Miami …
Georgia
Newnan
Hawaii
Honolulu
Illinois
Chicago
Louisiana
Covington
Maryland
Silver Spring
Massachusetts
Boston
Michigan
Dearborn
Missouri
St Louis
Nevada
Las Vegas
Source: ClinicalTrials.gov · NCT05150691 · last updated 2026-01-28