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Study Shows Novartis Drug Afinitor® Plus Hormonal Therapy Delays Disease Progression in Advanced Metastatic Breast Cancer Patients

EAST HANOVER, N.J., Dec. 9, 2010 /PRNewswire/ -- A new study shows that the addition of everolimus (Afinitor® tablets) to the hormonal therapy tamoxifen in patients with hormone-receptor positive/human epidermal growth factor receptor 2-negative (HR+/HER2-) metastatic breast cancer who have been previously treated with an aromatase inhibitor (AI) delays disease progression compared to tamoxifen alone. These results were presented today at the 33rd Annual CTRC-AACR San Antonio Breast Cancer Symposium in San Antonio, Texas(1).  

Findings from a randomized, Phase II study of 111 patients showed the proportion of metastatic breast cancer patients without tumor progression at six months was 61.1% for those taking everolimus plus tamoxifen (95% confidence interval [CI], 46.9 to 74.1) versus 42.1% for patients treated with tamoxifen alone (95% CI, 29.1 to 55.9); p=0.045(1).  

Disease progression was delayed by a median of 8.6 months in patients treated with the combination versus 4.5 months in patients treated with tamoxifen alone, with everolimus in combination with tamoxifen providing a statistically significant reduction in the risk of disease progression by 47% (hazard ratio=0.53 [95% CI, 0.35 to 0.81]; log-rank test: p=0.0026, exploratory analysis). Side effects were generally manageable in both study arms. As of October 2010, there were 25 patient deaths in the tamoxifen arm versus nine in the everolimus plus tamoxifen arm (hazard ratio=0.32 [95% CI, 0.15 to 0.68]; log-rank test: p=0.0019)(1).

This Phase II trial is conducted by the Groupe d'Investigateurs Nationaux pour l'Etude des Cancers Ovariens et du sein (the French GINECO Group).

Everolimus is an investigational agent for the treatment of patients with breast cancer. Everolimus targets mTOR in cancer cells, a protein that acts as an important regulator of tumor cell division, blood vessel growth and cell metabolism(7,8).

"The almost doubling of time to disease progression seen in the everolimus plus tamoxifen treatment arm reinforces the potential benefit of inhibiting mTOR to help overcome endocrine therapy resistance," said Thomas Bachelot, MD, from Centre Leon Berard in Lyon, France, and principal investigator of the study. "Based on these results, additional studies will evaluate the combination of everolimus with hormonal therapies as a second-line treatment for patients with HR+/HER2- metastatic breast cancer."

Breast cancer patients with advanced disease who become resistant to hormonal therapies have limited treatment options(2). Prior to these study findings, Novartis Pharmaceuticals Corporation ("Novartis") initiated a Phase III trial program called BOLERO (Breast cancer trials of OraL EveROlimus), which is the largest international Phase III clinical trial program to study an mTOR inhibitor in patients with locally advanced or metastatic breast cancer(4,5,6).

"These results are encouraging because if everolimus is approved for this indication, it could offer physicians a new strategy to treat patients with metastatic breast cancer whose disease progresses or becomes resistant to traditional hormonal therapies," said Herve Hoppenot, President, Novartis Oncology. "Novartis has a Phase III study underway researching the potential of everolimus for this patient population, which currently has limited treatment options."

For more information about the BOLERO trials, healthcare professionals can visit Study Details This randomized Phase II trial evaluated the efficacy and safety of everolimus in 111 patients with HR+/HER2- metastatic breast cancer with prior exposure to AI treatment (in adjuvant and/or metastatic setting). Patients were randomized 1:1 to receive everolimus plus tamoxifen (10 mg/day plus 20 mg/day, respectively) [N=54] or tamoxifen alone (20 mg/day) [N=57]. The primary endpoint was clinical benefit rate, defined as complete response, partial response and stable disease (CR+PR+SD) at six months in the everolimus plus tamoxifen arm. For the intent-to-treat analysis, a gain in clinical benefit of at least 20 percent was needed to warrant further study of the combination regimen, which was met in this trial(1).

For patients receiving everolimus plus tamoxifen, time to disease progression, a secondary endpoint, was almost twice as long as it was for patients receiving tamoxifen alone (8.6 months in patients treated with the combination versus 4.5 months in patients treated with tamoxifen alone). Everolimus in combination with tamoxifen provided a statistically significant reduction in the risk of disease progression by 47% (hazard ratio=0.53 [95% CI, 0.35 to 0.81]; log-rank test: p=0.0026, exploratory analysis)(1).

Side effects were generally manageable in both arms of the study. Everolimus had to be decreased for 15 patients (28%). Treatment was stopped due to toxicities in three patients in the everolimus plus tamoxifen arm and in four patients in the tamoxifen-only arm. Grade 3-4 adverse events (>10%) were stomatitis (11% in the everolimus plus tamoxifen arm and 0% in the tamoxifen-only arm), pain (9% in the everolimus plus tamoxifen arm and 19% in the tamoxifen-only arm) and fatigue (6% in the everolimus plus tamoxifen arm and 11% in the tamoxifen-only arm)(1).

Novartis Pharmaceuticals Corporation provided drug and financial support for this study.

About Breast CancerBreast cancer is the most prevalent cancer in women worldwide and is increasing in developing countries where the majority of cases are diagnosed in late stages(9). Data has shown that approximately 30% of women with breast cancer will eventually develop metastatic or advanced disease(2). In 2008, breast cancer caused approximately 460,000 deaths worldwide(10).

Breast cancer can originate in lobes, milk-producing ducts and other tissue within the breast. In these cases, some of the cells in the breast begin growing abnormally and uncontrollably. This quick division of cells may cause the cancer to spread through the breast to other parts of the body(11). The process of finding out how widespread the cancer is at initial time of diagnosis is called "staging." The stage of breast cancer is one of the most important factors in determining treatment options(3).

There are several standard treatment options for people diagnosed with breast cancer, which are based on the advancement and type of an individual's breast cancer, as well as their general health(3). For patients with advanced or metastatic breast cancer who become resistant or progress on standard therapies, treatment options are limited(2).

About Afinitor (everolimus)Afinitor® (everolimus) tablets is approved in the US for the treatment of patients with advanced renal cell carcinoma (RCC) after failure of treatment with sunitinib or sorafenib and in the European Union (EU) for the treatment of patients with advanced RCC whose disease has progressed on or after treatment with vascular endothelial growth factor (VEGF)-targeted therapy.

Afinitor is also approved in the US to treat patients with subependymal giant cell astrocytoma (SEGA) associated with tuberous sclerosis who require therapeutic intervention but are not candidates for curative surgical resection. The effectiveness of Afinitor is based on an analysis of change in SEGA volume. Improvement in disease-related symptoms or increase in survival has not been shown. Novartis has submitted marketing applications for everolimus to the European Medicines Agency (EMA) and the Swiss Agency for Therapeutic Products (Swissmedic), and additional regulatory submissions are underway worldwide.

Afinitor is available in the US in 2.5 mg, 5 mg and 10 mg tablet strengths. With once-daily dosing, Afinitor targets mTOR, a protein that acts as an important regulator of tumor cell division, blood vessel growth and cell metabolism.

In the US, everolimus is available in different dosage strengths under the trade name Zortress® for the prophylaxis of organ rejection in adult patients at low-moderate immunologic risk receiving a kidney transplant. In the EU, everolimus is available in different dosage strengths under the trade name Certican® for the prevention of organ rejection in heart and kidney transplant recipients.

Everolimus is exclusively licensed for use in drug-eluting stents to Abbott for the XIENCE V® and XIENCE PRIME™ Everolimus Eluting Coronary Stent System*, and sublicensed to Boston Scientific for the PROMUS™ and PROMUS™ Element™ Everolimus Eluting Coronary Stent System**.

Not all indications are available in every country. As an investigational compound the safety and efficacy profile of everolimus has not yet been established in breast cancer. Access to everolimus outside of the approved indications has been carefully controlled and monitored in clinical trials designed to better understand the potential benefits and risks of the compound. Because of the uncertainty of clinical trials, there is no guarantee that everolimus will become commercially available for breast cancer or any additional indications anywhere in the world.

Important Safety Information About Afinitor (everolimus) tablets Patients should not take Afinitor if they are allergic to Afinitor or to any of its ingredients. Patients should tell their healthcare provider before taking Afinitor if they are allergic to sirolimus (Rapamune®) or temsirolimus (Torisel®).

Afinitor can cause serious side effects including infections or lung or breathing problems.

Afinitor may make patients more likely to develop an infection, such as pneumonia, or a bacterial, fungal or viral infection. Viral infections may include reactivation of hepatitis B in people who have had hepatitis B in the past. In some people these infections may be severe, and can even lead to death. Patients may need to be treated as soon as possible. Patients should tell their healthcare provider right away if they have a temperature of 100.5 degrees F or above, chills or do not feel well. Symptoms of hepatitis B or infection may include the following: fever, skin rash, joint pain and inflammation, tiredness, loss of appetite, nausea, pale stool or dark urine, yellowing of the skin or pain in the patient's upper right side.

In some patients lung or breathing problems may be severe, and can even lead to death. Patients should tell their healthcare provider right away if they have any of these symptoms: new or worsening cough, shortness of breath, difficulty breathing or wheezing. Patients may need to stop taking Afinitor for a while or use a lower dose.

Afinitor can cause mouth ulcers and sores. Patients should tell their healthcare provider if they have pain, discomfort or open sores in their mouth. Their healthcare provider may tell them to use a special mouthwash or mouth gel that does not contain alcohol or peroxide.

Patients will have regular blood tests before they start and during their treatment with Afinitor. These tests will monitor how their kidneys and liver are working, their blood sugar and cholesterol levels as well as the number of blood cells in their body. Patients who receive Afinitor for the treatment of SEGA will need regular blood tests to measure how much Afinitor is in their blood since this will help their doctor decide how much Afinitor they need to take.

Afinitor may affect the way other medicines work, and other medicines can affect how Afinitor works. Using Afinitor with other medicines can cause serious side effects. Patients should tell their healthcare provider about all of the medicines they take, including prescription and non-prescription medicines, vitamins, herbal supplements such as: St. John's Wort, and medicine for fungal infections, bacterial infections, tuberculosis, seizures, HIV-AIDS, heart conditions or high blood pressure and medicines that suppress their immune system. Patients should not drink grapefruit juice or eat grapefruit during their treatment.

Patients should not take Afinitor tablets which are broken or crushed. Patients should not chew or crush the tablets.

Patients should tell their healthcare provider about all their medical conditions, including if they have or have had liver problems, diabetes or high blood sugar, high cholesterol levels, infections, hepatitis B or other medical conditions.

Patients should tell their healthcare provider if they are scheduled to receive any vaccinations. Patients should not receive a live vaccine or be around people who have recently received a live vaccine during treatment with Afinitor.

It is not known if Afinitor will harm a patient's unborn baby. Patients should use effective birth control while using Afinitor and for 8 weeks after stopping treatment.

Common side effects of Afinitor in patients with SEGA include mouth ulcers, infections of the respiratory tract, sinuses and ears and fever. Common side effects of Afinitor in patients with advanced kidney cancer include mouth ulcers, infections, feeling weak or tired, cough and diarrhea.

DisclaimerThe foregoing release contains forward-looking statements that can be identified by terminology such as "investigational," "potential," "will," "could," or similar expressions, or by express or implied discussions regarding potential new indications or labeling for Afinitor or regarding potential future revenues from Afinitor. You should not place undue reliance on these statements. Such forward-looking statements reflect the current views of management regarding future events, and involve known and unknown risks, uncertainties and other factors that may cause actual results with Afinitor to be materially different from any future results, performance or achievements expressed or implied by such statements. There can be no guarantee that Afinitor will be submitted or approved for any additional indications or labeling in any market. Nor can there be any guarantee that Afinitor will achieve any particular levels of revenue in the future. In particular, management's expectations regarding Afinitor could be affected by, among other things, unexpected clinical trial results, including unexpected new clinical data and unexpected additional analysis of existing clinical data; unexpected regulatory actions or delays or government regulation generally; the company's ability to obtain or maintain patent or other proprietary intellectual property protection; competition in general; government, industry and general public pricing pressures; the impact that the foregoing factors could have on the values attributed to the Novartis Group's assets and liabilities as recorded in the Group's consolidated balance sheet, and other risks and factors referred to in Novartis AG's current Form 20-F on file with the US Securities and Exchange Commission. Should one or more of these risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those anticipated, believed, estimated or expected. Novartis is providing the information in this press release as of this date and does not undertake any obligation to update any forward-looking statements contained in this press release as a result of new information, future events or otherwise.

About NovartisLocated in East Hanover, New Jersey, Novartis Pharmaceuticals Corporation is an affiliate of Novartis AG, which provides healthcare solutions that address the evolving needs of patients and societies. Focused solely on healthcare, the Novartis Group offers a diversified portfolio to best meet these needs: innovative medicines, preventive vaccines, diagnostic tools, cost-saving generic pharmaceuticals and consumer health products. The Novartis Group is the only company with leading positions in each of these areas. In 2009, the Group's continuing operations achieved net sales of USD 44.3 billion, while approximately USD 7.5 billion was invested in R&D activities throughout the Group. Headquartered in Basel, Switzerland, Novartis Group companies employ approximately 100,000 full-time-equivalent associates and operate in more than 140 countries around the world. For more information, please visit

Novartis is on Twitter. Sign up to follow @Novartis at

About GINECOGroupe d'Investigateurs Nationaux pour l'Etude des Cancers Ovariens et du sein (GINECO) is a French cooperative trial group of clinicians dedicated to metastatic breast and gynecological cancers. GINECO includes 100 oncology sites (public and private) and 600 investigators. Main GINECO objectives are to promote top-level clinical research and to contribute to define a national policy to fight against cancer, for the sake of patient and society, through a better use of resources. For more information, please visit

* XIENCE V® AND XIENCE PRIME™ are registered trademarks of Abbott

** PROMUS™ AND PROMUS™ ELEMENT are registered trademarks of Boston Scientific


  1. Bachelot et al. TAMRAD: A GINECO randomized phase II trial of Everolimus in combination with Tamoxifen versus Tamoxifen alone in patients (pts) with hormone-receptor positive, HER2 negative metastatic breast cancer (MBC) with prior exposure to Aromatase inhibitors (AI). 33rd San Antonio Breast Cancer Symposium. 2010.
  2. O'Shaughnessy J. Extending Survival with Chemotherapy in Metastatic Breast Cancer. The Oncologist. 2005;10(suppl 3):20-29.
  3. American Cancer Society. Breast Cancer Detailed Guide. Available at: Accessed November 2010.
  4. US National Institutes of Health. Everolimus in Combination With Trastuzumab and Paclitaxel in the Treatment of HER2 Positive Locally Advanced or Metastatic Breast Cancer (BOLERO-1). Accessed November 2010.
  5. US National Institutes of Health. Everolimus in Combination With Exemestane in the Treatment of Postmenopausal Women With Estrogen Receptor Positive Locally Advanced or Metastatic Breast Cancer Who Are Refractory to Letrozole or Anastrozole (BOLERO-2). Accessed November 2010.
  6. US National Institutes of Health. Daily Everolimus in Combination With Trastuzumab and Vinorelbine in HER2/Neu Positive Women With Locally Advanced or Metastatic Breast Cancer (BOLERO-3). Accessed November 2010.  
  7. Afinitor® (everolimus) tablets EU summary of product characteristics. Basel, Switzerland: Novartis International AG; October 2010.
  8. Meric-Bernstam et al. Targeting the mTOR Signaling Network for Cancer Therapy. Journal of Clinical Oncology. 2009; 27(13): 2278-2287.
  9. World Health Organization. Breast cancer: prevention and control. Available at: Accessed November 2010.
  10. International Agency for Research on Cancer. GLOBOCAN 2008. Cancer Incidence and Mortality Worldwide. Breast – Mortality, All ages. Accessed November 2010.
  11. What is Breast Cancer? Available at: Accessed November 2010.

Novartis Media RelationsMedia only:Gloria VanderhamNovartis OncologyP: +1 862 926 8420Dana Kahn CooperP: +1 732 817 1800F: +1 732 817 1834e-mail: media.relations@novartis.comInvestors only:Richard JarvisNovartis CorporationP: +1 212 830 2433e-mail:

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