Recent Updates
Recently added Catalysts

Anastrazole

Phase 3

Breast Cancer | Small molecule | Oncology |AstraZeneca PLC|Last Updated: Sep 6, 2012

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

RandomizedDouble-BlindACTIVE_CONTROLLED
Total Trials3
Total Enrollment502

FDA Designations

No designations recorded

Clinical trial landscape

Anastrazole · 3 trials · 1 indication

Phase 3 1Phase 2 2
NCT00605267Arimidex/Tamoxifen Neo Adjuvant Study in Premenopausal Patients With Breast Cancer Under Anti Hormonal TreatmentBreast Cancer
COMPLETED197 Analytics
PHASE3COMPLETED
Arimidex/Tamoxifen Neo Adjuvant Study in Premenopausal Patients With Breast Cancer Under Anti Hormonal Treatment
Breast CancerUnlock trial analytics

Study Endpoints

Primary Endpoints

Best Overall Response Rate (BORR) (Calliper)
24 weeks

The BORR were defined as the percentage of patients with confirmed CR or PR in the ITT population during 24 weeks pre-operative treatment period (based on the data from calliper measurement). CR (or PR) criteria are met at 2 or more time in points every 4 weeks. Per RECIST Criteria (V1.0) and assessed by Calliper: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), \>= 30% decrease in the sum of the longest diameter of target lesions; Overall Response (OR) = CR + PR.

Best Overall Response Rate (BORR) (US)
24 weeks

The BORR were defined as the percentage of patients with confirmed CR or PR in the ITT population during 24 weeks pre-operative treatment period (based on the data from ultra sound (US) measurement). CR (or PR) criteria are met at 2 or more time in points every 4 weeks. Per RECIST Criteria (V1.0) and assessed by US: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), \>= 30% decrease in the sum of the longest diameter of target lesions; Overall Response (OR) = CR + PR.

Best Overall Response Rate (BORR) (MRI/CT)
24 weeks

The BORR were defined as the percentage of patients with confirmed CR or PR in the ITT population during 24 weeks pre-operative treatment period(based on the data from magnetic resonance imaging (MRI) or computed tomography (CT) measurement). CR (or PR) criteria are met at either 12 weeks or 24 weeks. Per RECIST Criteria (V1.0) and assessed by MRI or CT: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), \>= 30% decrease in the sum of the longest diameter of target lesions; Overall Response (OR) = CR + PR.

Percentage Change From Baseline to Time of Surgery in Oestrogen Receptor (ER) H-score: Antitumour Effects of Fulvestrant, Anastrozole and a Combination of Both as Measured by the ER H-score.
Surgery (SRG) was to be performed between days 15 and 22 after baseline (BL)

For each sample, the ER H-score is calculated from the percentage of cells staining very weak (+/-); weak (+); moderate (++); or strong (+++) as follows: H-score = \[(0.5 x percent +/-) + (1 x percent +) + (2 x percent ++) + (3 x percent +++)\]. Range 0-300. The greater the change from baseline (randomization) in ER H-score, the greater the blockage of ER expression and the greater the potential anti-tumour activity. Percentage change from baseline=\[(SRG - BL)/BL\]x100

Percentage Change From Baseline to Time of Surgery in Progesterone Receptor (PgR) H-score: Antitumour Effects of Fulvestrant, Anastrozole and a Combination of Both as Measured by the PgR H-score.
Surgery (SRG) was to be performed between days 15 and 22 after baseline (BL)

For each sample, the PgR H-score is calculated from the percentage of cells staining very weak (+/-); weak (+); moderate (++); or strong (+++) as follows: H-score = \[(0.5 x percent+/-) + (1 x percent+) + (2 x percent++) + (3 x percent+++)\]. Range 0-300. The greater the change from baseline (randomization in PgR H-score, the greater the blockage of PgR expression and the greater the potential anti-tumour activity. Percentage change from baseline=\[(SRG - BL)/BL\]x100

Percentage Change From Baseline to Time of Surgery in Ki67 Labelling Index: Antitumour Effects of Fulvestrant, Anastrozole and a Combination of Both as Measured by the Ki67 Labelling Index.
Surgery (SRG) was to be performed between days 15 and 22 after baseline (BL)

For each sample, the Ki67 labelling index is calculated as the percentage of cells stained positive for Ki67. Range 0-100. The greater the change from baseline (randomization) in Ki67 labelling index, the greater the blockage of Ki67 expression and the greater the potential anti-tumour activity. Percentage change from baseline=\[(SRG - BL)/BL\]x100

To determine and compare changes in proliferation marker at 16 weeks in the treatment groups

Secondary Endpoints

Bone Mineral Density (BMD) Lumbar Spine
Assessed at baseline and after 24 weeks of treatment
Bone Mineral Density (BMD) Cervical Thighbone
Assessed at baseline and after 24 weeks of treatment
Bone Turnover Marker (BAP) EIA Method
Assessed at baseline and after 24 weeks of treatment
Unlock Study Endpoints

Study Design & Arms

AllocationRANDOMIZED
MaskingTRIPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
1ACTIVE_COMPARATORTamoxifen
2EXPERIMENTALAnastrazole (Arimidex)
3EXPERIMENTALAnastrozole + Fulvestrant

Interventions

NameTypeDescription
TamoxifenDRUG20 mg once daily oral dose
Anastrazole (Arimidex)DRUG1 mg once daily oral dose
Goserelin acetate (Zoladex)DRUG3.6mg/month depot injection
FulvestrantDRUG500 mg intramuscular injection
AnastrazoleDRUGoral tablet
GefitinibDRUG -
Unlock Study Design Details

Eligibility Criteria

Age Range20 Years to N/A
SexFEMALE
Healthy VolunteersNo
Study Sites4

Inclusion Criteria: * Premenopausal, estrogen receptor positive women, aged 20 years and over, with operable and measurable breast cancer who have provided written informed consent Exclusion Criteria: * Medical history of chemotherapy or endocrine therapy for breast cancer, or with treatment hist...

Countries:JapanUnited KingdomCzechiaFranceHungaryPortugalSpainSweden
Unlock Eligibility Criteria

Competitive Landscape -Breast Cancer 402 trials

Top 20 of 92 competitors

CompanyTickerTrialsLead PhaseDrugs
AstraZeneca PLCAZN47PHASE3Fulvestrant, Capivasertib
Merck & Co., Inc.MRK12PHASE3Pembrolizumab, Paclitaxel, Doxorubicin, Epirubicin, Cyclophosphamide
Eli Lilly and CompanyLLY27PHASE3Abemaciclib, Standard Adjuvant Endocrine Therapy
BioNTech SE Sponsored ADRBNTX7PHASE3DB-1303/BNT323, T-DM1
Gilead Sciences, Inc.GILD13PHASE3Sacituzumab Govitecan-hziy, Eribulin, Capecitabine Product, Gemcitabine, Vinorelbine
Novartis AG Sponsored ADRNVS30PHASE3Ribociclib
Pfizer Inc.PFE34PHASE3ARV-471, Fulvestrant
BeOne Medicines Ltd. Sponsored ADRONC5PHASE3BGB-43395, Letrozole, Abemaciclib, Palbociclib, Ribociclib
Olema Pharmaceuticals, Inc.OLMA5PHASE3Palazestrant, Fulvestrant, Anastrozole, Letrozole, Exemestane
Jazz Pharmaceuticals Public Limited CompanyJAZZ3PHASE3Zanidatamab, Trastuzumab, Eribulin, Vinorelbine, Gemcitabine
Celcuity Inc.CELC3PHASE3Gedatolisib, Palbociclib, Fulvestrant, Alpelisib
Relay Therapeutics, Inc.RLAY2PHASE3Zovegalisib, Capivasertib, Fulvestrant
GSK plc Sponsored ADRGSK2PHASE3Niraparib
Greenwich LifeSciences, Inc.GLSI1PHASE3GLSI-100
Bristol-Myers Squibb CompanyBMY5PHASE2Iza-bren, Nab-paclitaxel, Paclitaxel, Capecitabine, Carboplatin
BriaCell Therapeutics CorpBCTX2PHASE3SV-BR-1-GM, Cyclophosphamide, Interferon infiltration of the inoculation site, Retifanlimab, Treatment of Physician's Choice
Incyte CorporationINCY4PHASE2Ruxolitinib, Capecitabine, Regorafenib
Natera, Inc.NTRA3PHASE2Discontinuation of the anti-HER2 maintenance therapy
Puma Biotechnology, Inc.PBYI3PHASE2Neratinib, Loperamide, Colesevelam
Atossa Therapeutics, Inc.ATOS1PHASE2endoxifen, goserelin
Unlock Competitive Intelligence

Frequently asked questions about Anastrazole

What is Anastrazole used for?

Anastrazole is used for breast cancer. It is an investigational small molecule being studied in postmenopausal and premenopausal women with breast cancer, including as a neoadjuvant treatment before surgery. The drug is being developed by AstraZeneca PLC (AZN) and is currently in Phase 3 clinical development.

Who makes Anastrazole?

Anastrazole is being developed by AstraZeneca PLC, which trades under the ticker AZN. The company is conducting clinical trials of the drug in breast cancer patients across multiple countries, including the United Kingdom, Japan, and several European nations.

What phase is Anastrazole in?

Anastrazole is in Phase 3 clinical development for breast cancer. While the drug has completed three trials, including one Phase 3 study, it remains investigational and has not been approved by regulatory authorities. The Phase 3 trial enrolled 197 premenopausal patients in Japan.

What clinical trials is Anastrazole in?

Anastrazole has been studied in three completed clinical trials: NCT00255463, a Phase 2 neoadjuvant study in ER+/PgR+ breast cancer with 185 patients; NCT00259090, a Phase 2 study of Faslodex alone or with Anastrazole in 120 postmenopausal women; and NCT00605267, a Phase 3 neoadjuvant study in 197 premenopausal patients.

Is Anastrazole the same as Arimidex?

Yes, Anastrazole is also known as Arimidex. Clinical trial titles reference Arimidex, such as the Phase 2 study 'Arimidex +/- Iressa' and the Phase 3 study 'Arimidex/Tamoxifen Neo Adjuvant Study.' These names refer to the same drug being developed by AstraZeneca.

How does Anastrazole work?

Anastrazole is an aromatase inhibitor that works by reducing estrogen production in the body. It is being studied in hormone receptor-positive breast cancer, where estrogen can drive tumor growth. By lowering estrogen levels, the drug aims to slow or stop cancer cell proliferation.