DrugEvidence

Drugs / Trastuzumab

Trastuzumab

Drug

Trastuzumab is marketed as Herceptin and is a HER2/neu receptor antagonist used in HER2-overexpressing breast cancer and metastatic gastric/gastroesophageal junction adenocarcinoma. It is administered intravenously and requires companion diagnostic HER2 testing. U.S. initial approval was in 1998.

Trials
978
Recruiting
111
Completed
485
With results
308

Last revised

Pipeline

Phase by status

PhaseRecruitingNot yetActiveCompletedTerminatedWithdrawnSuspendedUnknownApproved for marketingTotal
Early Phase 1 2121 6
Phase 1 598212223 115
Phase 1/2 11193423610 94
Phase 2 5422402315714166 485
Phase 2/3 524322 18
Phase 3 277199712315 180
Phase 4 611521 16
Not applicable 2128115 20
Unknown 1122331112 44

Trials started per year

2021
13
2022
49
2023
44
2024
33
2025
40
2026
33
2027
1

Conditions studied, by phase

ConditionEarly Phase 1Phase 1Phase 1/2Phase 2Phase 2/3Phase 3Phase 4Not applicableUnknownTotal
Breast Neoplasms 476623115122121432 638
Stomach Neoplasms 11293459114 76
Neoplasm Metastasis 1310246123 59
Neoplasms 84162414 39
Breast Neoplasms, Male 841611 30
Colorectal Neoplasms 5416111 28
Brain Neoplasms 15681112 25
Carcinoma, Non-Small-Cell Lung 7482 21
Esophageal Neoplasms 5393 20
Inflammatory Breast Neoplasms 33104 20

Most active sponsors

#SponsorTrialsPhase 3
1Hoffmann-La Roche8937
2National Cancer Institute (NCI)4412
3Novartis Pharmaceuticals2410
4Fudan University237
5Memorial Sloan Kettering Cancer Center190
6Dana-Farber Cancer Institute181
7Genentech, Inc.141
8M.D. Anderson Cancer Center111
9SCRI Development Innovations, LLC100
10City of Hope Medical Center90

Most studied interventions

#InterventionTrials
1Trastuzumab978
2pertuzumab253
3Docetaxel213
4Paclitaxel207
5Cyclophosphamide126
6Capecitabine121
7Carboplatin119
8Doxorubicin69
9Lapatinib65
10Epirubicin59

Evidence

Results reported
63.5%308 of 485 completed
Published
17.5%85 of 485 completed
Primary endpoint met
49.5%45 of 91 analyses
Median months to report
18

Documents disclosed

Protocol available
132
Statistical analysis plan
131
PubMed citations
267

Trial profile

Median enrollment
70
Median duration
58months
Countries
91
Study sites
16268

Who is enrolled

Adults
976
Children
30
Older adults
953
Healthy volunteers
27

Median enrollment by phase

Early Phase 1
15
Phase 1
41
Phase 1/2
34
Phase 2
58
Phase 2/3
163
Phase 3
482
Phase 4
97
Not applicable
44
Unknown
129

Where trials run

United States
443
China
204
Spain
139
France
134
Italy
127
Germany
115
United Kingdom
95
Belgium
91
South Korea
91
Canada
82

Busiest cities

#CityCountryTrials
1BostonUnited States118
2New YorkUnited States114
3BarcelonaSpain113
4MadridSpain110
5HoustonUnited States105
6NashvilleUnited States96
7ShanghaiChina89
8SeoulSouth Korea86
9MilanItaly84
10ValenciaSpain82

Terminations

Terminated
113
Withdrawn
28
Suspended
4
Stopped for recruitment
4.5%44 of 978 trials

Stated reasons

Other / unclear
64
Recruitment
44
Regulatory
10
Business decision
8
Funding
8
Lack of efficacy
5
Safety
5
COVID-19
1

Reasons are grouped from the sponsor's own wording with a rule-based classifier; the original text is shown below.

Recently stopped

TrialStatusStated reasonStopped
NCT04120246 Suspended Suspended Study placed on hold. 2030-02-01
NCT05062889 Suspended Suspended due to earlier termination of the agreement between the Sponsor and Central Laboratory for screening test. Enrollment will reopen as soon as a new laboratory is identified. 2029-12-31
NCT04419181 Withdrawn Withdrawn Change in the landscape of current treatment of early stage breast cancer. Larger clinical trials answering similar questions are expected to result in the next few years. 2027-06-01
NCT05378464 Suspended Suspended Wait for the DLT period with our current patient and will not be enrolling any more. 2026-12-31
NCT05238831 Withdrawn Withdrawn Withdrawn due to a change in therapeutic interventions. 2026-05-31
NCT03738553 Terminated Terminated Study closed to accrual after meeting grant enrollment goal, prior to reaching protocol accrual goal, due to end of funding. 2026-03-01
NCT07040059 Terminated Terminated Patient recruitment problems. 2025-12-29
NCT06038539 Terminated Terminated US FDA is streamlining the Biosimilar development. Thus, Biocon decided to terminate the study. 2025-12-23
NCT05553522 Terminated Terminated Slow enrollment 2025-12-17
NCT03367676 Terminated Terminated Due to slower than anticipated enrollment, the study was terminated early after 78 patients were recruited. 2025-10-01

Trial records