Drugs / TRASTUZUMAB PAMIRTECAN
last change Jun 2026 re-read 2 minutes ago

TRASTUZUMAB PAMIRTECAN

also known as BNT323 · DB-1303 · DB-1303/BNT323
Developed for
breast cancer · breast carcinoma · endometrial cancer · HER2 positive breast carcinoma
Investigated by
BioNTech SE · DualityBio Inc. · BioNTech (Shanghai) Pharmaceuticals Co., Ltd.

Trials 5 · a red edge is where a trial was stopped

PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 1/22 trials
Phase 1/2 NCT06827236 Apr 2025 → Aug 2029 expected breast carcinoma BioNTech SE Recruiting No outcome recorded
Phase 1/2 NCT05150691 Jan 2022 → Apr 2026 overdue DualityBio Inc. Recruiting No outcome recorded
Phase 33 trials
Phase 3 NCT06340568 Jun 2025 → Mar 2028 expected endometrial cancer BioNTech SE Recruiting No outcome recorded
Phase 3 NCT06265428 Jan 2024 → Feb 2026 overdue HER2 positive breast carcinoma DualityBio Inc. Active not recruiting No outcome recorded
Phase 3 NCT06018337 Jan 2024 → Jun 2026 overdue breast cancer DualityBio Inc. Active not recruiting No outcome recorded

Press releases naming this drug 4 releases

DateIssuerRelease
2026-04-11 BioNTech SE BioNTech and DualityBio’s Antibody-Drug Conjugate Trastuzumab Pamirtecan Demonstrated Clinically Meaningful Efficacy in Patients with HER2-Expressing, Recurrent Endometrial Cancer biontech.com
2025-09-05 BioNTech SE BioNTech and DualityBio Announce Phase 3 Trial of ADC Candidate BNT323/DB-1303 Met Primary Endpoint of Progression Free Survival in HER2-Positive Metastatic or Unresectable Breast Cancer biontech.com
2024-01-22 BioNTech SE BioNTech and DualityBio Initiate Pivotal Phase 3 Trial Of Antibody-Drug Conjugate Candidate BNT323/DB-1303 in Metastatic Breast Cancer biontech.com
2023-12-21 BioNTech SE BioNTech and DualityBio Receive FDA Breakthrough Therapy Designation for Antibody-Drug Conjugate Candidate BNT323/DB-1303 in Endometrial Cancer biontech.com

Evidence & citations 5 cited values

Every value below carries the sentence it was read from. 6 sources stand behind the page.

FieldValueCited text
Known as TRASTUZUMAB PAMIRTECAN ChEMBL registry synonym — accepted as the source's own label CHEMBL6068309
Known as BNT323 “This study is designed to compare efficacy and safety of DB-1303/BNT323 versus T-DM1 in HER2-positive, unresectable and/or metastatic breast cancer patients previously treated...” NCT06265428
3

“receive a 8 mg/kg IV dose of DB-1303/BNT323 on Day 1 of each cycle Q3W” NCT06018337

NCT06827236

NCT06340568

Known as DB-1303 “BNT323 (also known as DB-1303) or chemotherapy” NCT06340568
2

NCT06265428

NCT06018337

Known as DB-1303/BNT323 ClinicalTrials.gov intervention name — accepted as the source's own label NCT05150691
Route Intravenous “Administered IV” NCT05150691