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Last Updated: January 19, 2025

CLINICAL TRIALS PROFILE FOR ARIMIDEX


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All Clinical Trials for Arimidex

Trial ID Title Status Sponsor Phase Start Date Summary
NCT00005908 ↗ Primary Chemotherapy With Docetaxel-Capecitabine and Doxorubicin-Cyclophosphamide in Breast Cancer Completed National Cancer Institute (NCI) Phase 2 2000-06-01 This study will assess the usefulness of a technique called complementary deoxyribonucleic acid (cDNA) microarray-an examination of a wide array of genes to identify disease-associated patterns-for measuring tumor response to chemotherapy in breast cancer patients. The study will look for "markers" that can help select the most effective type of chemotherapy. It will also evaluate the safety and effectiveness of a new drug combination of capecitabine and docetaxel. Patients age 18 years and older with stage II or III breast cancer whose tumor is 2 centimeters or larger may be eligible for this study. Those enrolled will be treated with surgery, standard chemotherapy using doxorubicin (Adriamycin) and cyclophosphamide (Cytoxan), and the capecitabine and docetaxel combination. Patients will have a physical examination, mammogram and magnetic resonance imaging to evaluate their tumor before beginning treatment. They will then have four 21-day treatment cycles of docetaxel and capecitabine, as follows: docetaxel intravenously (through a vein) on day 1 and capecitabine pills (by mouth) twice a day from days 2 through 15. No drugs will be given from days 16 through 21. This regimen will be repeated four times, after which the tumor will be re-evaluated by physical examination, mammogram, and magnetic resonance imaging. Patients will then have surgery to remove the cancer-either lumpectomy with removal of the underarm lymph nodes; mastectomy and removal of the underarm lymph nodes; or modified radical mastectomy. After recovery, they will have four more cycles of chemotherapy, this time with a doxorubicin and cyclophosphamide. Both drugs will be given intravenously on day 1 of four 21-day cycles. Some patients who had a mastectomy (depending on their tumor characteristics and whether tumor cells were found in their lymph nodes) and all those who had a lumpectomy will also have radiation therapy. Patients with hormone receptor-positive tumors will also receive tamoxifen treatment for 5 years. In addition to the above procedures, all patients will have tumor biopsies (removal of a small piece of tumor tissue) before beginning treatment, on day 1 of cycle 1, before cycle 2, and at the time of surgery, and physical examinations, chest X-rays, bone scans, computerized tomography (CT) scans, electrocardiograms, multi-gated acquisition scan-MUGA (nuclear medicine test of cardiac function) or echocardiograms of heart function, mammograms and blood tests at various times during the study. Patients will be followed at National Institutes of Health (NIH) for 3 years after diagnosis with physical examinations, blood tests, X-rays, and computed tomography (CT) scans. Although it is not known whether this treatment will help an individual patient's cancer, possible benefits are tumor shrinkage and decreased risk of disease recurrence. In addition, the information gained about genetic changes after chemotherapy will help determine if additional studies on the use of cDNA microarray to measure tumor response are warranted.
NCT00022672 ↗ A Study to Evaluate the Efficacy and Safety of Herceptin® (Trastuzumab) in Combination With Arimidex® (Anastrozole) an Aromatase Inhibitor Compared to Arimidex® Alone in Patients With Metastatic Breast Cancer Completed Genentech, Inc. Phase 3 2001-01-01 This 2 arm study assessed the safety and efficacy of adding intravenous trastuzumab (Herceptin®) to daily oral anastrozole (Arimidex®) tablets as first- and second-line treatment in postmenopausal patients with human epidermal growth factor receptor-2 (HER2) overexpressing metastatic breast cancer (ER+ve and/or PR+ve). Patients were randomized to receive either anastrazole 1 mg per os (po) daily, or anastrazole 1 mg po daily + a loading dose of Herceptin® 4 mg/kg intravenous (iv) followed by weekly doses of Herceptin® 2 mg/kg iv. The anticipated time on study treatment was until disease progression, and the target sample size was 100-500 individuals.
NCT00022672 ↗ A Study to Evaluate the Efficacy and Safety of Herceptin® (Trastuzumab) in Combination With Arimidex® (Anastrozole) an Aromatase Inhibitor Compared to Arimidex® Alone in Patients With Metastatic Breast Cancer Completed Hoffmann-La Roche Phase 3 2001-01-01 This 2 arm study assessed the safety and efficacy of adding intravenous trastuzumab (Herceptin®) to daily oral anastrozole (Arimidex®) tablets as first- and second-line treatment in postmenopausal patients with human epidermal growth factor receptor-2 (HER2) overexpressing metastatic breast cancer (ER+ve and/or PR+ve). Patients were randomized to receive either anastrazole 1 mg per os (po) daily, or anastrazole 1 mg po daily + a loading dose of Herceptin® 4 mg/kg intravenous (iv) followed by weekly doses of Herceptin® 2 mg/kg iv. The anticipated time on study treatment was until disease progression, and the target sample size was 100-500 individuals.
>Trial ID >Title >Status >Phase >Start Date >Summary

Clinical Trial Conditions for Arimidex

Condition Name

Condition Name for Arimidex
Intervention Trials
Breast Cancer 67
Stage IV Breast Cancer 8
Recurrent Breast Cancer 7
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Condition MeSH

Condition MeSH for Arimidex
Intervention Trials
Breast Neoplasms 112
Carcinoma 12
Endometrial Neoplasms 4
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Clinical Trial Locations for Arimidex

Trials by Country

Trials by Country for Arimidex
Location Trials
United States 420
Japan 43
Canada 36
Spain 30
United Kingdom 24
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Trials by US State

Trials by US State for Arimidex
Location Trials
Massachusetts 21
California 20
Texas 18
Florida 18
Missouri 16
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Clinical Trial Progress for Arimidex

Clinical Trial Phase

Clinical Trial Phase for Arimidex
Clinical Trial Phase Trials
Phase 4 6
Phase 3 38
Phase 2/Phase 3 1
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Clinical Trial Status

Clinical Trial Status for Arimidex
Clinical Trial Phase Trials
Completed 78
Recruiting 20
Terminated 20
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Clinical Trial Sponsors for Arimidex

Sponsor Name

Sponsor Name for Arimidex
Sponsor Trials
AstraZeneca 54
National Cancer Institute (NCI) 21
Pfizer 9
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Sponsor Type

Sponsor Type for Arimidex
Sponsor Trials
Other 154
Industry 112
NIH 29
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Arimidex: Clinical Trials, Market Analysis, and Projections

Introduction to Arimidex

Arimidex, known generically as anastrozole, is a potent aromatase inhibitor developed by AstraZeneca. It is primarily used in the treatment of breast cancer in postmenopausal women. Here, we will delve into the clinical trials, market analysis, and future projections for this significant drug.

Clinical Trials: ATAC and PROACT Studies

The ATAC Clinical Trial

One of the most notable clinical trials involving Arimidex is the ATAC (Arimidex, Tamoxifen Alone or in Combination) study. This trial involved over 9,300 postmenopausal women with early breast cancer and compared the efficacy of Arimidex against tamoxifen, both alone and in combination. The study spanned 10 years, including 5 years of treatment and 5 years post-treatment.

Key Findings:

  • Women who took Arimidex experienced an improvement in disease-free survival compared to those who took only tamoxifen[1].

The PROACT Study

The PROACT (Pre-Operative Arimidex Compared To Tamoxifen) study is another significant trial. This randomized, double-blind study compared Arimidex with tamoxifen as neo-adjuvant and adjuvant treatment in post-menopausal women with large operable or potentially operable, locally advanced breast cancer.

Key Aspects:

  • The study involved 452 female participants aged 60 and above.
  • It was designed to assess the efficacy of Arimidex versus tamoxifen in treating ER+ and/or PR+ breast cancer[4].

Market Analysis

Global Breast Cancer Drugs Market

The global breast cancer drugs market, which includes aromatase inhibitors like Arimidex, is forecasted to grow significantly. Here are some key points from the market analysis:

Market Drivers:

  • Increasing prevalence of breast cancer is a major driver. For instance, about 255,000 cases of breast cancer are registered every year in the United States[3].
  • Patent expiry of existing drugs opens opportunities for new and generic versions[2].

Market Restraints:

  • High cost of treatment is a significant restraint. However, drugs like Arimidex, which are reimbursable under medical insurance and have relatively fewer side effects, are more favorable[5].

Market Segmentation:

  • The market is segmented by drug type, including chemotherapy drugs, hormone therapy drugs (like aromatase inhibitors), targeted therapy drugs, and other therapeutic drugs. Hormone therapy drugs, which include Arimidex, are a crucial segment[2].

Aromatase Inhibitors Market

The aromatase inhibitors market, specifically, is expected to grow at a CAGR of 5.60% from 2022 to 2029. Here are some key insights:

Market Growth:

  • The market growth is driven by the increasing research and development of novel therapies and the rising incidence of breast cancer[3].

Distribution Channels:

  • The market is segmented by distribution channels, including hospital pharmacy, online pharmacy, retail pharmacy, and others. This diverse distribution network ensures wide accessibility of aromatase inhibitors like Arimidex[3].

Projections and Future Outlook

Sales and Revenue Projections

In China, for example, the sales volume and value of anastrozole (Arimidex) are expected to continue growing from 2021 to 2025. This growth is attributed to the rising incidence of breast cancer and the drug's early clinical use and reimbursement under medical insurance[5].

New Indications and Research

New indications for anastrozole are expected to be approved soon, further expanding its market potential. Additionally, ongoing research, such as the identification of lemur tyrosine kinase 3 (LMTK3) in breast cancer cell proliferation, may lead to the development of new drugs and therapies, potentially impacting the market dynamics[3].

Competitive Landscape

The competitive landscape of the breast cancer drugs market includes major players like Novartis AG, AbbVie, AstraZeneca, Eli Lilly and Company, and others. These companies are involved in various strategic developments, including acquisitions, mergers, new product launches, and research collaborations, which will continue to shape the market[2].

COVID-19 Impact

The COVID-19 pandemic had a slight setback on the aromatase inhibitors market due to delays in diagnostic rates and supply shortages. However, the market is expected to recover as healthcare systems normalize and research continues to advance[3].

Key Takeaways

  • Clinical Trials: Arimidex has shown superior efficacy in disease-free survival compared to tamoxifen in clinical trials like ATAC and PROACT.
  • Market Growth: The global breast cancer drugs market, including aromatase inhibitors, is expected to grow significantly driven by increasing breast cancer prevalence and research in novel therapies.
  • Projections: Sales and revenue of anastrozole are projected to grow, especially in regions like China, due to its early clinical use and reimbursement benefits.
  • Future Outlook: New indications and ongoing research are expected to further expand the market potential of Arimidex and similar drugs.

FAQs

What is Arimidex used for?

Arimidex (anastrozole) is used in the treatment of breast cancer in postmenopausal women, particularly for hormone receptor-positive breast cancer.

What were the key findings of the ATAC clinical trial?

The ATAC trial found that women who took Arimidex experienced an improvement in disease-free survival compared to those who took only tamoxifen.

How is the aromatase inhibitors market expected to grow?

The aromatase inhibitors market is expected to grow at a CAGR of 5.60% from 2022 to 2029, driven by increasing breast cancer prevalence and research in novel therapies.

What impact did COVID-19 have on the aromatase inhibitors market?

COVID-19 caused a slight setback due to delays in diagnostic rates and supply shortages, but the market is expected to recover as healthcare systems normalize.

Which companies are major players in the breast cancer drugs market?

Major players include Novartis AG, AbbVie, AstraZeneca, Eli Lilly and Company, and others.

Sources

  1. ARIMIDEX and the ATAC Clinical Trial - Arimidex.com
  2. Global Breast Cancer Drugs Market (2016 to 2025) - Business Wire
  3. Aromatase Inhibitors Market – Global Industry Trends and Forecast - Data Bridge Market Research
  4. PROACT - Pre-Operative Arimidex Compared To Tamoxifen - AstraZeneca Clinical Trials
  5. China Anastrozole Market Report 2021 - Business Wire

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