Clinical Trials

160 enrolled

Breast Neoplasms, Triple Negative Breast Neoplasms

NCT04253561 2026-03-16

IPATHER

Phase 1 Completed

17 enrolled

Breast Neoplasms

NCT05132582 2026-03-16

HER2CLIMB-05

654 enrolled

Breast Neoplasms

NCT01042379 2026-03-13

I-SPY

5,000 enrolled

BreastSarcoma

Pathologic Complete Response, Breast Neoplasms, Hemangiosarcoma, Neoplasms, Triple Negative Breast Neoplasms

NCT06038539 2026-03-13

Efficacy and Safety of the Proposed Biosimilar Pertuzumab (PERT-IJS) Versus EU-Perjeta® Along With Trastuzumab and Chemotherapy (Carboplatin and Docetaxel) as Neoadjuvant Treatment in Chemotherapy naïve Patients With Early Stage or Locally Advanced HR Negative and HER2 Positive Breast Cancer

Phase 3 Terminated

55 enrolled

HR Negative HER2 Positive Early Breast Cancer or Locally Advanced Breast Cancer Patients

NCT04886531 2026-03-12

Trial of Pre-operative Neratinib and Endocrine Therapy With Trastuzumab in ER-Positive, HER-2 Positive Breast Cancers

30 enrolled

Breast Neoplasms

NCT07102381 2026-03-12

EmpowHER 208

125 enrolled

Phase 1 Active not recruiting

Breast Neoplasms

NCT03006172 2026-03-11

To Evaluate the Safety, Tolerability, and Pharmacokinetics of Inavolisib Single Agent in Participants With Solid Tumors and in Combination With Endocrine and Targeted Therapies in Participants With Breast Cancer

200 enrolled

Phase 2/3 Not yet recruiting

Breast Neoplasms

NCT07413939 2026-03-10

BREnnA

650 enrolled

HER2-positive Breast Cancer

NCT04266249 2026-03-02

CompassHER2-pCR: Decreasing Chemotherapy for Breast Cancer Patients After Pre-surgery Chemo and Targeted Therapy

2,175 enrolled

Anatomic Stage II Breast Cancer AJCC v8

NCT05325632 2026-03-02

Study of HER2 Directed Dendritic Cell (DC1) Vaccine + Weekly Paclitaxel, Trastuzumab & Pertuzumab

53 enrolled

Phase 3 Not yet recruiting

Breast Neoplasms

NCT07441460 2026-03-02

A Phase III Study of KN026 in Combination With HB1801 as Adjuvant Therapy for Resectable HER2-Positive Breast Cancer

1,800 enrolled

Resectable HER2-positive Breast Cancer

NCT03523585 2026-02-27

DS-8201a in Pre-treated HER2 Breast Cancer That Cannot be Surgically Removed or Has Spread [DESTINY-Breast02]

Phase 3 Completed

608 enrolled 17 charts

Breast Neoplasms

NCT07053085 2026-02-27

A Study of Surgery and Radiotherapy in People With Breast Cancer

162 enrolled

Breast Neoplasms

NCT07421141 2026-02-27

Opti-HER2

186 enrolled

Breast Neoplasms

NCT07377643 2026-02-25

IBI354 With or Without Pertuzumab Versus Taxane, Trastuzumab and Pertuzumab in HER2-positive Metastatic Breast Cancer

Phase 3 Recruiting

540 enrolled

HER2-positive Breast Cancer

NCT03179904 2026-02-24

TVB-2640 and Trastuzumab With Paclitaxel or Endocrine Therapy for Treatment of HER2 Positive Metastatic Breast Cancer

17 enrolled 10 charts

Advanced Breast Carcinoma

NCT06100874 2026-02-24

A Single-arm Phase II Trial of SAcituzumab Govitecan and Trastuzumab for HER2+ Metastatic Breast Cancer After Trastuzumab dEruxtEcaN (SATEEN)

28 enrolled

Breast Neoplasms

NCT05113251 2026-02-23

Trastuzumab Deruxtecan (T-DXd) Alone or in Sequence With THP, Versus Standard Treatment (ddAC-THP), in HER2-positive Early Breast Cancer

927 enrolled

Breast Neoplasms

NCT05376878 2026-02-23

An Investigational Scan (64Cu-DOTA-Trastuzumab PET/MRI) in Imaging Patients With HER2+ Breast Cancer With Brain Metastasis

Phase 4 Recruiting

10 enrolled

BreastCNS

Brain Neoplasms, Breast Neoplasms

NCT06016387 2026-02-23

Tucatinib, Trastuzumab and Capecitabine With Brain and/or Spinal Radiotherapy (XRT) in Patients With HER2+, HER2 Mutated and/or HER2-amplified Metastatic Breast Cancer and Leptomeningeal Disease: A Multi-centre Phase II, Single Arm Feasibility Study

30 enrolled

Breast Neoplasms, Meningeal Neoplasms

NCT07193394 2026-02-23

H3RAKLES

20 enrolled

Breast Neoplasms, Neoplasm Metastasis, Neoplasms

NCT04024462 2026-02-20

A Two-Arm Study to Evaluate the Pharmacokinetics, Efficacy, and Safety of Subcutaneous Administration of the Fixed-Dose Combination of Pertuzumab and Trastuzumab in Combination With Chemotherapy in Chinese Participants With HER2-Positive Early Breast Cancer

Phase 3 Completed

200 enrolled 16 charts

HER2-positive Early Breast Cancer

NCT01853748 2026-02-19

T-DM1 vs Paclitaxel/Trastuzumab for Breast (ATEMPT Trial)

Phase 2 Completed

512 enrolled 28 charts

Phase NA Active not recruiting

Breast Neoplasms

NCT02226276 2026-02-13

Copper Cu 64-DOTA-Trastuzumab PET in Predicting Response to Treatment With Ado-Trastuzumab Emtansine in Patients With Metastatic HER2 Positive Breast Cancer

10 enrolled 8 charts

Breast Neoplasms

NCT06686394 2026-02-13

MK-1022-009

Phase 1/2 Recruiting

81 enrolled

Breast Neoplasms

NCT02624973 2026-02-12

PETREMAC

200 enrolled

Breast Neoplasms

NCT03101748 2026-02-12

Neratinib and Paclitaxel With or Without Pertuzumab and Trastuzumab Before Combination Chemotherapy in Treating Patients With Metastatic or Locally Advanced Breast Cancer

Phase 1/2 Terminated

34 enrolled 15 charts

Breast Neoplasms, Inflammatory Breast Neoplasms

NCT07407920 2026-02-12

Ph2 Study for Optimization of Adjunct Systemic Therapy in HER2+ Patients, MolecularPCR Trial

120 enrolled

Phase 2 Not yet recruiting

Anatomic Stage I Breast Cancer AJCC v8

NCT07402473 2026-02-11

EUREKA Study:Phase 2 Study to Optimize Neoadjuvant Therapy in HER2-positive Early-stage Breast Cancer

50 enrolled

HER2-positive Early-stage Breast Cancer

NCT05415215 2026-02-10

ProHer

Phase 3 Completed

346 enrolled 20 charts

Breast Neoplasms, Patient Preference, Inflammatory Breast Neoplasms

NCT07393425 2026-02-06

Neoadjuvant Trastuzumab Deruxtecan (SHR-A1811) + Pertuzumab in HER2+ Breast Cancer

50 enrolled

Breast Neoplasms

NCT01796197 2026-02-05

Paclitaxel + Trastuzumab + Pertuzumab as Pre-Op for Inflammatory BrCa

Phase 2 Completed

23 enrolled 10 charts

Breast Neoplasms

NCT06876714 2026-02-04

ShortStop-HER2: 12 Months vs. 6 Months of HER2-targeted Medications for People With HER2+ Breast Cancer Who Had a Pathologic Complete Response After Chemotherapy Plus Trastuzumab

Phase 3 Recruiting

1,524 enrolled

Anatomic Stage I Breast Cancer AJCC v8

NCT07386938 2026-02-04

A Study of the Efficacy, Safety and Pharmacokinetics of RPH-051 and Perjeta® in Combination With Trastuzumab and Docetaxel as the 1st Line Therapy in Patients With HER2-positive Breast Cancer

246 enrolled

Breast Neoplasms

NCT07007559 2026-02-03

ASPEN-09

Phase 1/2 Recruiting

80 enrolled

Breast Neoplasms, Neoplasm Metastasis

NCT04208178 2026-02-02

EPIK-B2

19 enrolled

Advanced HER2+Breast Cancer

NCT07196774 2026-01-30

A Trial of SHR-A1811 Compared to Other Antitumor Therapies as Neoadjuvant Treatments in Early-stage or Locally Advanced HER2-positive Breast Cancer

Phase 3 Recruiting

740 enrolled

Phase 1 Active not recruiting

Early-stage or Locally Advanced HER2-positive Breast Cancer

NCT02057133 2026-01-26

A Study of LY2835219 (Abemaciclib) in Combination With Therapies for Breast Cancer That Has Spread

198 enrolled

Phase 2/3 Not yet recruiting

Breast Neoplasms

NCT07366840 2026-01-26

BRIGHT

268 enrolled

Phase 1/2 Active not recruiting

Breast Neoplasms

NCT03368729 2026-01-23

Niraparib in Combination With Trastuzumab in Metastatic HER2+ Breast Cancer

46 enrolled

Breast Neoplasms

NCT03765983 2026-01-22

GDC-0084 in Combination With Trastuzumab for Patients With HER2-Positive Breast Cancer Brain Metastases

Phase 2 Terminated

17 enrolled

Breast Neoplasms

NCT03879577 2026-01-21

Assessing the Response Rate of Neo-adjuvant Taxotere and Trastuzumab in Nigerian Women With Breast Cancer

53 enrolled 13 charts

Breast Neoplasms

NCT07340398 2026-01-21

TAYLOR

200 enrolled

HER2-positive Early Breast Cancer

NCT05296798 2026-01-16

A Study to Evaluate the Efficacy and Safety of Giredestrant in Combination With Phesgo (Pertuzumab, Trastuzumab, and Hyaluronidase-zzxf) Versus Phesgo in Participants With Locally Advanced or Metastatic Breast Cancer (heredERA Breast Cancer)

922 enrolled

Breast Neoplasms

NCT04721977 2026-01-09

MK-7119-001

66 enrolled 7 charts

Phase 2/3 Active not recruiting

Breast Neoplasms

NCT04290793 2026-01-07

Neoadjuvant Chemotherapy With Pyrotinib, Epirubicin and Cyclophosphamide Followed by Taxanes and Trastuzumab for HER-2+ Breast Cancer

113 enrolled

Breast Neoplasms

NCT04578106 2026-01-06

ELPIS

Phase 2 Terminated

5 enrolled 7 charts