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Taxane

Phase 3

Breast Cancer; HER2-positive; Metastatic | Small molecule | Oncology |AstraZeneca PLC|Last Updated: Jul 30, 2026

Success Probability

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Market & Valuation

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Trial Design

RandomizedACTIVE_CONTROLLEDDMC
Total Trials1
Total Enrollment1,157

FDA Designations

No designations recorded

Clinical trial landscape

Taxane · 1 trial · 1 indication

Phase 3 1
NCT04784715Trastuzumab Deruxtecan (T-DXd) With or Without Pertuzumab Versus Taxane, Trastuzumab and Pertuzumab in HER2-positive Metastatic Breast Cancer (DESTINY-Breast09)Breast Cancer; HER2-positive; Metastatic
ACTIVE NOT_RECRUITING1,157 Analytics
PHASE3ACTIVE NOT_RECRUITING
Trastuzumab Deruxtecan (T-DXd) With or Without Pertuzumab Versus Taxane, Trastuzumab and Pertuzumab in HER2-positive Metastatic Breast Cancer (DESTINY-Breast09)
Breast Cancer; HER2-positive; MetastaticUnlock trial analytics

Study Endpoints

Primary Endpoints

Progression Free Survival (PFS) by Blinded Independent Central Review (BICR) assessment
Until progression or death, assessed up to approximately 60 months

Defined as time from date of randomisation until the date of objective radiological disease progression according to Blinded Independent Central Review (BICR) using RECIST 1.1 or death by any cause.

Secondary Endpoints

Progression Free Survival (PFS) by Investigator assessment
Until progression or death, assessed up to approximately 60 months
Overall Survival (OS)
Until death, assessed up to approximately 104 months
Objective Response Rate (ORR) by BICR and Investigator assessment
Until progression or death (in the absence of progression), assessed up to approximately 60 months
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Arm AEXPERIMENTALTrastuzumab deruxtecan (T-DXd) plus pertuzumab-matching placebo
Arm BEXPERIMENTALTrastuzumab deruxtecan (T-DXd) plus pertuzumab
Arm CACTIVE_COMPARATORStandard of care (Taxane (paclitaxel or docetaxel), trastuzumab, and pertuzumab)

Interventions

NameTypeDescription
Trastuzumab deruxtecanDRUGAdministered by intravenous infusion
PlaceboDRUGAdministered by intravenous infusion
TaxaneDRUGInvestigator's choice of docetaxel or paclitaxel administered by intravenous infusion
PertuzumabDRUGAdministered by intravenous infusion
TrastuzumabDRUGAdministered by intravenous infusion
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Eligibility Criteria

Age Range18 Years to 130 Years
SexALL
Healthy VolunteersNo
Study Sites283

Key Inclusion Criteria: * Patients must be ≥18 years of age * Pathologically documented breast cancer that: 1. is advanced or metastatic 2. is locally assessed and prospectively centrally confirmed as HER2-positive (IHC3+ or ISH+) 3. is documented by local testing as hormone receptor (HR)-po...

Countries:United StatesArgentinaBelgiumBrazilCanadaChinaDenmarkFranceGermanyHungaryIndiaIsraelItalyJapanMexicoPeruPhilippinesRomaniaRussiaSaudi ArabiaSouth AfricaSouth KoreaSpainSwedenTaiwanTurkey (Türkiye)United Kingdom
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Recent Changes (Last 90 Days)

MEDIUMJul 30, 2026NCT04784715primaryCompletionDate: changed
MEDIUMJul 30, 2026NCT04784715primaryCompletionDate: changed

Frequently asked questions about Taxane

What is Taxane used for in HER2-positive metastatic breast cancer?

Taxane is an investigational small molecule being studied in HER2-positive metastatic breast cancer. It is used as an active control in the DESTINY-Breast09 trial, where it is compared against trastuzumab deruxtecan with or without pertuzumab. The trial is in Phase 3 and is active but not recruiting.

Who makes Taxane?

Taxane is being developed by AstraZeneca PLC, which trades under the ticker AZN. The company is running a Phase 3 clinical trial of Taxane in HER2-positive metastatic breast cancer, with the drug serving as a comparator in the study.

What phase is Taxane in?

Taxane is in Phase 3 clinical development. It is being evaluated in the DESTINY-Breast09 trial, which is active but not recruiting. The drug is investigational and has not been approved for any use.

What clinical trials is Taxane in?

Taxane is being studied in one Phase 3 trial, NCT04784715, titled "Trastuzumab Deruxtecan (T-DXd) With or Without Pertuzumab Versus Taxane, Trastuzumab and Pertuzumab in HER2-positive Metastatic Breast Cancer (DESTINY-Breast09)." The trial has enrolled 1,157 participants and is active but not recruiting.

Is Taxane the same as trastuzumab deruxtecan?

No, Taxane is not the same as trastuzumab deruxtecan. In the DESTINY-Breast09 trial, Taxane is used as a control treatment, while trastuzumab deruxtecan is the experimental therapy being tested with or without pertuzumab. Taxane is a small molecule, whereas trastuzumab deruxtecan is an antibody-drug conjugate.