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罗氏安维汀(Avastin)联合化疗显著延长晚期宫颈癌患者生命

  1. Avastin
  2. 安维汀
  3. 宫颈癌
  4. 罗氏

来源:生物谷 2013-06-04 09:56

2013年6月3日讯 /生物谷BIOON/ --2日,罗氏(Roche)公布了由美国国家癌症研究所(NCI)赞助、由妇科肿瘤学组(Gynecologic Oncology Group,GOG)开展的一项大型III期临床研究数据。

2013年6月3日讯 /生物谷BIOON/ --2日,罗氏(Roche)公布了由美国国家癌症研究所(NCI)赞助、由妇科肿瘤学组(Gynecologic Oncology Group,GOG)开展的一项大型III期临床研究数据。研究结果表明,与化疗相比,安维汀(Avastin,bevacizumab,贝伐单抗)+化疗(紫杉醇+顺铂或紫杉醇+拓扑替康)显著延长了晚期宫颈癌患者的生命,使患者死亡风险降低了29%,具有统计学显着差异(HR=0.71,p=0.0035),达到了研究的主要终点。

化疗组总生存期(OS)为13.3个月,Avastin+化疗组OS为17个月。该项研究中,没有观察与Avastin相关的新安全信号,整体安全性与既往研究一致。

GOG240研究的详细数据如下,且已提交至2日举行的美国临床肿瘤学会(ASCO)会议。

*与化疗相比,Avastin+化疗使死亡风险降低了29%(HR=0.71, p=0.0035);
*化疗组OS为13.3个月,Avastin+化疗组OS为17.0个月;
*化疗组疾病无进展生存期(PFS)为5.9个月,Avastin+化疗组PFS为8.2个月,PFS风险降低33%(HR=0.67, p<0.002);
*与化疗相比,Avastin+化疗使更多的肿瘤缩小(48% vs 36%,p=0.0078);
*研究中未观察到新的安全信号,整体安全性与既往研究一致。

GOG240是一项独立的、NCI资助的III期临床试验,旨在评估Avastin联合化疗(紫杉醇+顺铂或紫杉醇+拓扑替康)在晚期(IVb期)宫颈癌或经标准治疗后复发的宫颈癌女性患者中的疗效及安全性。该项研究的主要终点是总生存期(OS)。(生物谷Bioon.com)

英文原文:Roche's medicine Avastin plus chemotherapy improved survival in women with advanced cervical cancer, compared to chemotherapy alone

First Phase III study of Avastin in this difficult-to-treat cancer

Roche (SIX: RO, ROG; OTCQX: RHHBY) today announced the results of a large, independent study (GOG240) sponsored by the US National Cancer Institute (NCI) and conducted by the Gynecologic Oncology Group (GOG), which showed that the addition of Avastin (bevacizumab) to chemotherapy (paclitaxel and cisplatin or paclitaxel and topotecan) extended the lives of women with advanced cervical cancer, compared to chemotherapy alone. The study met its primary endpoint of improving overall survival with a statistically significant 29 percent reduction in the risk of death for women who received Avastin plus chemotherapy compared to those who received chemotherapy alone (HR=0.71, p=0.0035).

Women who received Avastin plus chemotherapy lived a median of 3.7 months longer compared to those who received chemotherapy alone; the median overall survival (OS) was 17 months with Avastin plus chemotherapy compared to 13.3 for chemotherapy alone. No new safety signals related to Avastin were observed and overall safety was consistent with that seen in previous pivotal studies of Avastin across different tumour types.

“Worldwide, cervical cancer is the third most common cancer in women, and those who have an advanced form of this cancer need new medicines”, said Hal Barron, M.D., chief medical officer and head, Global Product Development. “We’d like to thank the GOG for their leadership and the NCI for their support of the study. We plan to discuss these encouraging data with regulatory authorities.”

It is estimated that there are more than half a million cases of cervical cancer worldwide each year,1 with approximately 85% of those in developing countries.1 Besides effective treatment, it is also critical that more women have access to vaccination against human papilloma virus (HPV; the cause of the vast majority of cervical cancers) and to screening for precancerous lesions. These approaches can prevent women from developing advanced clinical disease.

The GOG240 data will be presented today in the plenary session of the 49th Annual Meeting of the American Society of Clinical Oncology (ASCO) by Dr. Krishnansu Sujata Tewari, University of California, Irvine Medical Center (Abstract 3, Sunday, June 2, 1:00 PM CDT).

GOG240 study results

Avastin in combination with chemotherapy reduced the risk of death by 29 percent compared to chemotherapy alone (HR=0.71, p=0.0035).

Median overall survival was 17.0 months for women who received Avastin plus chemotherapy compared to 13.3 months for chemotherapy alone.

Women who received Avastin plus chemotherapy experienced a 33 percent reduction in the risk of disease worsening or death (progression-free survival; PFS) compared to chemotherapy alone (median PFS: 8.2 months vs. 5.9 months; HR=0.67, p<0.002)

Avastin plus chemotherapy shrank more tumours (response rate) than chemotherapy alone (48% versus 36%, respectively, p=0.0078).

No new safety signals were observed and the overall safety was consistent with that seen in previous pivotal studies of Avastin across tumour types

About the GOG240 study

GOG240 is an independent, National Cancer Institute (NCI) sponsored phase III trial assessing the efficacy and safety profile of Avastin plus chemotherapy (paclitaxel and cisplatin or paclitaxel and topotecan) in women with advanced (stage IVb) cervical cancer, or cervical cancer that persisted or recurred after standard treatment. The trial was supported by Roche. The primary endpoint of the study was OS. A total of 452 women in the United States and Spain were randomised to one of four treatment arms:

Paclitaxel and cisplatin.

Paclitaxel, cisplatin and Avastin (15 mg/kg every three weeks).

Paclitaxel and topotecan.

Paclitaxel, topotecan and Avastin (15 mg/kg every three weeks).

About the Gynecologic Oncology Group (GOG)

The Gynecologic Oncology Group (GOG) is a non-profit international organisation with the purpose of promoting excellence in the quality and integrity of clinical and basic scientific research in the field of gynecologic malignancies. The Group is committed to maintaining the highest standards in clinical trials development, execution, analysis and distribution of results. Continuous evaluation of their processes is utilised in order to constantly improve the quality of patient care. To promote this mission, the GOG receives support from the National Cancer Institute (NCI) of the National Institutes for Health (NIH).

About cervical cancer

Cervical cancer is caused when cells of the cervix, the lower part of the uterus, become cancerous. According to the American Cancer Society, cervical cancer can often be found early and sometimes even be prevented entirely if detected early by having regular Pap / smear tests. Almost all cases of cervical cancer (99.7%) are caused by human papilloma viruses (HPV).2 HPV is a group of more than 150 related viruses, many of which can be easily spread during sexual intercourse. Not all HPVs cause cancer; however two in particular – HPV types 16 and 18 – are responsible for about 70% of cervical cancers.3 It is critical that more women have access to vaccination against HPV and to screening technologies. This approach can prevent them from developing the deadly disease. There is a dramatic difference in five year survival rates between early and advanced cervical cancer. When localised, nine out of 10 women will live for five years following diagnosis; when the disease is advanced (metastatic), this drops to below two in ten women.4 It is estimated that there are more than half a million cases of cervical cancer worldwide each year,1 with approximately 85% of those in developing countries.1 Cervical cancer is the third most common cancer in women,1 and one of the leading causes of cancer death in women worldwide, with approximately 275,000 women dying yearly.1

About Avastin – over 9 years of transforming cancer care

With the initial approval in the USA for advanced colorectal cancer in 2004, Avastin became the first anti-angiogenic therapy made widely available for the treatment of patients with an advanced cancer.

Today, Avastin is continuing to transform cancer care through its proven survival benefit (overall survival and/or progression free survival) across several types of cancer. Avastin is approved in Europe for the treatment of advanced stages of breast cancer, colorectal cancer, non-small cell lung cancer, kidney cancer and ovarian cancer, and is available in the US for the treatment of colorectal cancer, non-small cell lung cancer and kidney cancer. In addition, Avastin is approved in the US and over 60 other countries worldwide for the treatment of patients with progressive glioblastoma following prior therapy. Avastin is approved in Japan for the treatment of the advanced stages of colorectal, non-small cell lung cancer and breast cancer. Avastin is the only anti-angiogenic therapy available for the treatment of these numerous advanced cancer types, which collectively cause over 2.5 million deaths each year.

Avastin has made anti-angiogenic therapy a fundamental pillar of cancer treatment today. Over one million patients have been treated with Avastin so far. A comprehensive clinical programme with more than 500 ongoing clinical trials is investigating the use of Avastin in over 50 tumour types.

About Avastin – mode of action

An independent blood supply is critical for a tumour to grow beyond a certain size (2mm) and spread (metastasise) to other parts of the body. Tumours develop their own blood supply in a process called angiogenesis by releasing vascular endothelial growth factor (VEGF) – a key driver for tumour growth. Avastin is an antibody that precisely targets and inhibits VEGF. Precise VEGF inhibition by Avastin allows it to be combined effectively with a broad range of chemotherapies and other anti-cancer treatments with limited additional impact on the side effects of these therapies.

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