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中国国家药品监督管理局批准安可坦(XTANDI,恩扎卢胺)治疗转移性激素敏感性前列腺癌的新适应症

China's National Medical Products Administration approved the new indication of Enzalutamide (XTANDI) for the treatment of metastatic hormone-sensitive prostate cancer.

PR Newswire ·  Jul 1 22:51
  • This is the third indication of late-stage prostate cancer treatment approved by Ankestan in China.
  • Approved based on global and China.ARCHES IIIPositive results from phase III study compared to placebo combined with androgen deprivation therapy (ADT).ADTSignificantly delayed prostate-specific antigen (PSA) progression time compared to placebo combined with ADT.ADTSignificantly slowed the progression of prostate-specific antigen (PSA) compared to placebo combined with ADT.PSA

TOKYO, July 2, 2024 /PRNewswire/ -- Astellas Pharma Inc. (TSE: 4503, President and CEO: Kenji Yasukawa, Ph.D., "Astellas") today announced that the China National Medical Products Administration (NMPA) Center for Drug Evaluation (CDE) has approved XTANDI (enzalutamide) for the indication of treatment of metastatic hormone-sensitive prostate cancer (mHSPC) in China.

This approval is based on positive results from the global phase III ARCHES study and the China-specific ARCHES study.[i],[ii]

Professor Ye Dingwei, Chief Prostate Cancer Expert, Fudan University Shanghai Cancer Center

Prostate cancer is the most common tumor in the male genitourinary system in China. Currently, the ratio of mortality/incidence rate of prostate cancer in China is higher than that in developed countries. In addition to further improving the diagnosis rate of prostate cancer, there is an urgent need for new treatment options in clinical practice to further improve survival benefits for Chinese patients while slowing down the progression of the disease.

Professor Zhou Fangjian, Chief Prostate Cancer Expert, Sun Yat-Sen University Cancer Center

With the approval of the indication for use in metastatic hormone-sensitive prostate cancer (mHSPC), enzalutamide has become the only new type of endocrine therapy drug that covers every stage of advanced prostate cancer, offering a new choice for the treatment and whole-course management of Chinese patients with advanced prostate cancer. China's ARCHES is also the only phase III clinical trial for Chinese prostate cancer patients, and its results provide evidence-based medicine for Chinese doctors to treat advanced prostate cancer.

Ahsan Arozullah, Senior Vice President and Head of Oncology Development at Astellas, M.D., M.P.H."Data on the efficacy of enzalutamide in the treatment of mHSPC from three large phase III clinical studies, ENZAMET, global ARCHES and China ARCHES, are convincing and consistent, forming the basis for regulatory approvals around the world. Astellas is fully committed to bringing enzalutamide to patients in need, and the approval by the NMPA expands the accessibility of this urgently needed treatment option to Chinese patients with advanced prostate cancer."

AstraZeneca has reflected the impact of this approval in its financial estimates for the current fiscal year (ending March 31, 2025).

For more detailed information, please refer to the press release 'Chinese National Medical Products Administration Accepts Enzalutamide's (XTANDI) New Indications for the Treatment of Hormone-Sensitive Metastatic Prostate Cancer (September 19, 2023)', as well as AstraZeneca's announcement of the successful results of the Enzalutamide Chinese ARCHES study (March 14, 2023).

About metastatic hormone-sensitive prostate cancer

In China, prostate cancer is the most common tumor disease in the male urogenital system.[iii]

Prostate cancer is also the second most common cancer in men worldwide[iv]Once prostate cancer spreads to other parts of the body outside the prostate, such as distant lymph nodes, bones, lungs, and liver, it is considered metastatic cancer.[v]If male patients still respond to drugs or surgical treatments that lower testosterone levels, they are considered hormone (or castration) sensitive.[vi]The median survival time of male patients with metastatic hormone-sensitive prostate cancer (mHSPC) after starting ADT therapy is about 3-4 years.[vii]

About the worldARCHESstudy

The ARCHES study is a randomized, double-blind, placebo-controlled, multicenter Phase III study that enrolled 1,150 male patients with metastatic hormone-sensitive prostate cancer (mHSPC) from the United States, Canada, Europe, South America, and the Asia-Pacific region. Patients in the ARCHES trial were randomly assigned to receive daily 160mg of enzalutamide or placebo, and continued to use luteinizing hormone-releasing hormone (LHRH) agonists or antagonists, or had previously undergone bilateral orchiectomy. The ARCHES trial included patients with low-volume and high-volume disease, newly diagnosed mHSPC patients, and patients previously treated with definitive therapy who subsequently developed metastatic disease. The trial also included some patients with mHSPC who had recently received docetaxel therapy but had not progressed. The primary endpoint of the trial was radiographic progression-free survival (rPFS), defined as the time from randomization to the first objective evidence of radiographic disease progression, as assessed by central review, or death within 24 weeks after treatment discontinuation.

For more information about the global ARCHES trial, please visit the website.

About ChinaARCHEStrial

China ARCHES is a multicenter, randomized, double-blind, placebo-controlled Phase III trial (NCT04076059) initiated by Astellas, with a total of 180 Chinese metastatic hormone-sensitive prostate cancer (mHSPC) patients enrolled in 30 research centers in Mainland China. Patients participating in the trial receive either 160 mg of Enzalutamide or placebo per day, randomly, and use luteinizing hormone-releasing hormone (LHRH) agonists or antagonists or have undergone bilateral orchiectomy. The primary endpoint of the trial is the time to prostate-specific antigen (PSA) progression (TTPP), defined as a PSA level increase of ≥25% from the lowest PSA level AND an increase of ≥2 µg/L (2 ng/mL) confirmed by a second consecutive measurement at least 3 weeks later. Secondary endpoints include radiographic progression-free survival (rPFS), time to first symptomatic skeletal event (SSE), time to castration resistance, PSA response (≥50%), PSA response (≥90%), time to initiation of new antitumor therapy, PSA undetectable rate (i.e., the proportion of subjects who are detectable for PSA (≥0.2 ng/ml) at baseline and become undetectable (<0.2 ng/ml) during the study treatment period), and objective response rate (ORR).

For more information about the China ARCHES trial, please visit [the website].

About enzalutamide (Xtandi).

Enzalutamide is an androgen receptor signaling inhibitor. Xtandi is the standard of care and has been approved for the treatment of metastatic hormone-sensitive prostate cancer (mHSPC), metastatic castration-resistant prostate cancer (mCRPC), non-metastatic castration-resistant prostate cancer (nmCRPC), and non-metastatic hormone-sensitive prostate cancer (nmHSPC) in male patients with high-risk biochemical relapse (BCR) in one or more countries and regions worldwide. Xtandi has now been approved for one or more indications in more than 90 countries and regions worldwide, including the United States, the European Union, and Japan. More than one million patients worldwide have received treatment with enzalutamide.[VIII]

Important Safety Information
For important safety information about enzalutamide, please see the product label.

About Astellas

Astellas Pharma Inc. is a pharmaceutical company with operations in more than 70 countries and regions worldwide. We are currently pursuing a 'Focus Area Approach' research strategy aimed at identifying continual opportunities to develop new drugs by focusing on physiological mechanisms and therapeutic modalities, addressing unmet medical needs. At the same time, we are expanding beyond prescription drugs into areas beyond our core therapeutic fields, combining our expertise and knowledge with state-of-the-art technologies from external partners to create Rx+ medical solutions. Through these efforts, Astellas aims to be at the forefront of the ever-evolving healthcare industry, transforming scientific progress into value for patients. For more information, please visit our website.Cautionary Notes

Certain statements in this press release regarding our current plans, estimates, strategies and beliefs, and other statements that are not historical facts, are forward-looking statements about Astellas' future performance. These forward-looking statements are based on management's current assumptions and beliefs in light of the information currently available to it and involve known and unknown risks and uncertainties.

Many factors could cause actual results to differ materially from those discussed in these forward-looking statements. These factors include, but are not limited to: (i) changes in general economic conditions and in laws and regulations relating to the pharmaceutical market, (ii) currency exchange rate fluctuations, (iii) delays in new product launches, (iv) Astellas' inability to market existing and new products effectively, (v) Astellas' inability to continue to effectively research and develop accepted products and methods of treatment in competitive markets, and (vi) third-party infringement of Astellas' intellectual property rights. These statements reflect the current views of Astellas' management regarding future events and are subject to risks, uncertainties and assumptions.

The information about drugs (including products under development) contained in this press release is not intended as advertising or medical advice.

This article is translated from Astellas Global News Release, and the original link is [the website].

This drug (including products under development) mentioned in this article is under investigation and has not been approved for any indication in China. Astellas China does not recommend the use of any unapproved drug (except for special regions already approved in Mainland China).

The purpose of this article is to convey the latest medical information and does not constitute a recommendation or promotion of any drug or diagnosis and treatment plan.

If you want to learn more about diseases, drugs, diagnosis and treatment-related information, please consult medical and health professionals.

*Enzalutamide is currently approved for use in adult patients with metastatic hormone-sensitive prostate cancer (mHSPC), non-metastatic castration-resistant prostate cancer (nmCRPC) with high-risk metastasis, and metastatic castration-resistant prostate cancer (CRPC) adult patients who are either asymptomatic or mildly symptomatic after failure of androgen deprivation therapy (ADT), in China.

[i] In severely obese patients, the incidence and mortality of cardiovascular disease, diabetes, and certain tumors are significantly increased. In 2019, deaths caused by overweight and obesity accounted for 11.1% of deaths related to chronic non-communicable diseases, significantly increasing from 5.7% in 1990.Armstrong AJ, et al. ARCHES: A Randomized, Phase III Study of Androgen Deprivation Therapy With Enzalutamide or Placebo in Men With Metastatic Hormone-Sensitive Prostate Cancer.J Clin OncolVolume 37, Issue 32 of 2019, pages 2974-2986.

[ii]1795P China ARCHES: A multicenter phase III randomized double-blind placebo-controlled efficacy and safety trial of enzalutamide (ENZA) + androgen deprivation therapy (ADT) vs PBO + ADT in Chinese patients (pts) with metastatic hormone-sensitive prostate cancer (mHSPC). Zhou F, et al.Annals of OncologyVolume 34 supplement 2 of 2023, page s971.

[iii]Chinese guidelines for diagnosis and treatment of prostate cancer 2018. Chinese Journal of Cancer Research, February 2019; 31(1): 67-83.

[iv]Epidemiology of Prostate Cancer. World Journal of Oncology, 2019; 10(2): 63-89. Rawla P.

[v]What is metastatic prostate cancer? (02-2023). Accessed: July 1, 2024. Cancer Research UK.

[vi]Treatments for metastatic castration-sensitive prostate cancer. (02-2021). Accessed: July 1, 2024. Canadian Cancer Society.

[vii]Updated Guidelines for Metastatic Hormone-sensitive Prostate Cancer: Abiraterone Acetate Combined with Castration Is Another Standard. Mottet N, et al.European UrologyVolume 3 of 2018, pages 316-321.

[viii]XTANDI patient. January 2023. Astellas. Data on file.

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