Drugs / Zanidatamab
last change Jul 2026 re-read 2 minutes ago

Zanidatamab

also known as ZW25 · Zanidatamab-hrii · Ziihera

Monoclonal antibody targets ERBB2 via depletion

Developed for
HER2 positive breast carcinoma · gastroesophageal adenocarcinoma · endometrial cancer · gastric cancer · gastroesophageal cancer · gastroesophageal junction adenocarcinoma · carcinoma · non-small cell lung carcinoma
+28 more · rectal carcinoma · urothelial carcinoma · biliary tract cancer · biliary tract neoplasm · breast cancer · cancer · colon carcinoma · colorectal cancer · colorectal carcinoma · colorectal neoplasm · digestive system carcinoma · endometrium neoplasm · esophageal adenocarcinoma · esophageal cancer · gastric neoplasm · head and neck cancer · head and neck neoplasm · malignant pancreatic neoplasm · metastatic carcinoma · metastatic malignant neoplasm · ovarian cancer · ovarian neoplasm · pancreatic neoplasm · salivary gland cancer · sarcoma · urinary bladder carcinoma · uterine carcinosarcoma · uterine cervix neoplasm
Investigated by
Jazz Pharmaceuticals · BeOne Medicines · BeiGene · Zymeworks BC Inc. · Jazz Pharmaceuticals Ireland Limited · National Cancer Institute, France
+29 more · QuantumLeap Healthcare Collaborative · UNICANCER · ALX Oncology Inc. · Accord Healthcare, Inc. · American Association for Cancer Research · Astellas Pharma Global Development, Inc. · BeOne Pharmaceutical Co., Ltd. · Belgian Group of Digestive Oncology · Canadian Cancer Trials Group · Cancer Research UK · Cancer Research UK & UCL Cancer Trials Centre · Emory University · Fujian Medical University Union Hospital · Haihua Yuan · Institut für Klinische Krebsforschung IKF GmbH at Krankenhaus Nordwest · M.D. Anderson Cancer Center · MedSIR · Memorial Sloan Kettering Cancer Center · Natera, Inc. · National Cancer Institute (NCI) · Pierre Fabre Laboratories · Roche Diagnostic Ltd. · Servier · Taiho Oncology, Inc. · Tao Zhang · Universitaire Ziekenhuizen KU Leuven · Xijing Hospital · Yonsei University · Zhifeng Zhao, PhD

Regulatory milestones approvals, filings & regulatory actions · 1 recorded

MilestoneJurisdictionBrandIndicationDateSentence it was read from
Approved · conditional EU (EMA) Ziihera 2025-06-27 europa.eu

Trials 30 · a red edge is where a trial was stopped

PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 12 trials
Phase 1 NCT05868226 Feb 2023 → Dec 2028 expected HER2 positive breast carcinoma, hormone receptor-positive breast cancer, metastatic malignant neoplasm, triple-negative breast carcinoma QuantumLeap Healthcare Collaborative Recruiting No outcome recorded
Phase 1 NCT02892123 Sep 2016 → Oct 2024 HER2 positive breast carcinoma Jazz Pharmaceuticals Completed No outcome recorded
Phase 1/24 trials
Phase 1/2 NCT07494448 Jul 2026 → Dec 2027 expected HER2 positive breast carcinoma MedSIR Not yet recruiting No outcome recorded
Phase 1/2 NCT07477444 Jun 2026 → Jun 2028 expected gastroesophageal cancer Universitaire Ziekenhuizen KU Leuven Not yet recruiting No outcome recorded
Phase 1/2 NCT05027139 Sep 2021 → Aug 2025 carcinoma Jazz Pharmaceuticals Completed No outcome recorded
Phase 1/2 NCT04276493 Mar 2020 → Dec 2023 breast cancer, gastric cancer, gastroesophageal cancer BeiGene Completed No outcome recorded
Phase 218 trials
Phase 2 NCT07685704 Jul 2026 → Jun 2028 expected gastric cancer, gastroesophageal junction adenocarcinoma Zhifeng Zhao, PhD Not yet recruiting No outcome recorded
Phase 2 NCT07631871 Jun 2026 → Dec 2029 expected colorectal neoplasm, endometrium neoplasm, head and neck neoplasm, ovarian neoplasm +3 Haihua Yuan Not yet recruiting No outcome recorded
Phase 2 NCT07290985 May 2026 → Jun 2028 expected gastroesophageal adenocarcinoma American Association for Cancer Research Not yet recruiting No outcome recorded
Phase 2 NCT07405476 Apr 2026 → Dec 2028 expected colon carcinoma, rectal carcinoma Emory University Recruiting No outcome recorded
Phase 2 NCT07176312 Jan 2026 → Mar 2029 expected gastroesophageal adenocarcinoma, metastatic carcinoma Institut für Klinische Krebsforschung IKF GmbH at Krankenhaus Nordwest Recruiting No outcome recorded
Phase 2 NCT07243938 Jan 2026 → Jul 2028 expected gastroesophageal junction adenocarcinoma, rectal carcinoma Tao Zhang Not yet recruiting No outcome recorded
Phase 2 NCT07273981 Jan 2026 → Jun 2028 expected gastroesophageal junction adenocarcinoma Xijing Hospital Not yet recruiting No outcome recorded
Phase 2 NCT07192068 Oct 2025 → Mar 2028 expected colorectal carcinoma, endometrial cancer, head and neck cancer, non-small cell lung carcinoma +1 UNICANCER Recruiting No outcome recorded
Phase 2 NCT07296705 Oct 2025 → Dec 2027 expected urinary bladder carcinoma Fujian Medical University Union Hospital Recruiting No outcome recorded
Phase 2 NCT06695845 Jan 2025 → Dec 2026 expected HER2 positive breast carcinoma, colorectal cancer, endometrial cancer, esophageal cancer +7 Jazz Pharmaceuticals Recruiting No outcome recorded
Phase 35 trials
Phase 3 NCT06435429 Aug 2024 → Apr 2028 expected HER2 positive breast carcinoma Jazz Pharmaceuticals Recruiting No outcome recorded
Phase 3 NCT06282575 Jul 2024 → Dec 2028 expected biliary tract cancer Jazz Pharmaceuticals Recruiting No outcome recorded
Phase 3 NCT05615818 Jul 2024 → Jun 2027 expected biliary tract neoplasm UNICANCER Recruiting No outcome recorded
Phase 3 NCT05152147 Dec 2021 → Jul 2026 overdue esophageal adenocarcinoma, gastric neoplasm, gastroesophageal adenocarcinoma Jazz Pharmaceuticals Active not recruiting No outcome recorded
Phase 3 NCT04164199 Dec 2019 → May 2026 cancer BeOne Medicines Completed No outcome recorded
Phase not stated1 trial
NCT04578444 carcinoma Jazz Pharmaceuticals No longer available No outcome recorded
Also used as a comparator or background therapy in 3 trials
PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 11 trial
Phase 1 NCT06253871 Background Mar 2024 → Dec 2027 expected HER2 positive breast carcinoma, gastroesophageal cancer, metastatic malignant neoplasm in the brain, non-small cell lung carcinoma +1 Iambic Therapeutics, Inc Recruiting No outcome recorded
Phase 1/21 trial
Phase 1/2 NCT06324357 Background Jun 2024 → Jan 2029 expected breast cancer, colorectal cancer, esophageal adenocarcinoma, gastric adenocarcinoma +1 Boehringer Ingelheim Recruiting No outcome recorded
Phase 21 trial
Phase 2 NCT07102381 Comparator Sep 2025 → Jan 2028 expected HER2 positive breast carcinoma Jazz Pharmaceuticals Recruiting No outcome recorded

Evidence & citations 8 cited values

Every value below carries the sentence it was read from. 38 sources stand behind the page.

FieldValueCited text
Known as zanidatamab “IAM1363 monotherapy OR IAM1363 in combination with capecitabine + trastuzumab OR IAM1363 in combination with capecitabine + zanidatamab OR IAM1363 in combination with T-Dxd OR...” NCT06253871
32

Zanidatamab (ZW25), a humanized, bispecific antibody that simultaneously binds the 2 distinct HER2 epitopes bound by trastuzumab and pertuzumab, has demonstrated safety and...” PMID 38262242 Jan 2024

Zanidatamab, a dual human epidermal growth factor receptor 2 (HER2)-targeted bispecific antibody” PMID 40473445 Jun 2025

NCT06695845

NCT05035836

NCT05027139

NCT07405476

NCT05270889

NCT04164199

NCT04276493

NCT01042379

NCT07631871

NCT05152147

NCT05868226

NCT05615818

NCT02892123

NCT07192068

NCT07296705

NCT04578444

NCT07273981

NCT04466891

NCT07243938

NCT07494448

NCT06043427

NCT06435429

NCT04224272

NCT07477444

NCT07102381

NCT07685704

NCT06324357

NCT07290985

NCT07176312

NCT06282575

Known as Zanidatamab-hrii ChEMBL registry synonym — accepted as the source's own label CHEMBL4650256
Known as Ziihera ChEMBL registry synonym — accepted as the source's own label CHEMBL4650256
Known as ZW25 “This is a first-in-human, 3-part study to investigate the safety, tolerability, and effectiveness of ZW25 (zanidatamab) by itself and combined with selected chemotherapy agents...” NCT02892123
3

ZW25 (Zanidatamab)” NCT04224272

NCT04513665

NCT03929666

Action Deplete “Zanidatamab is an antibody designed to destroy cancer cells that have higher-than-normal HER2 protein or gene levels.” PMID 39114870 Aug 2024
Modality Monoclonal antibody “Zanidatamab is a humanised, bispecific monoclonal antibody directed against two non-overlapping domains of HER2.” PMID 36400106 Nov 2022
Route Intravenous “Zanidatamab: IV Infusion” NCT01042379
Target ERBB2 “Zanidatamab is a humanised, bispecific monoclonal antibody directed against two non-overlapping domains of HER2.” PMID 36400106 Nov 2022