הודעות לתקשורת

סוכנות התרופות האירופאית ה- EMEA, אישרה טיפול כימותרפי לסרטן הריאות, הנקרא הייקמטין (Hycamtin), שניתן מעתה בקפסולות לבליעה ומיוצר בחברת התרופות גלקסו סמית קליין (GSK). הייקמטין, המיועד לטיפול בחולים עם סרטן ריאות חוזר, מסוג של תאים קטנים (Relapsed Small Cell Lung Cancer), ניתן כעת ללקיחה בבליעה ואינו מחייב עוד מתן בעירוי ואשפוז, מעמיד אופציה טיפולית חדשה שתקל משמעותית על המטופל והן על הרופא. התרופה מעכבת אנזים, החיוני לשכפול החומר הגנטי שבתא הסרטני ולחלוקת התאים. הקשר שנוצר בין האנזים והתרופה יוצר נזק לחומר הגנטי בתאי הסרטן ומביא להריסתו.

על סרטן הריאות בישראל
סרטן הריאות הינו המחלה הממארת הרביעית השכיחה בישראל והשלישית השכיחה ביותר בעולם המערבי בכלל ונחשבת כגורם הראשון למוות בין כל מחלות הסרטן. על פי נתוני האגודה למלחמה בסרטן, כ- 1,500 נשים וגברים מאובחנים מדי שנה בישראל כחולים בסרטן הריאות. כ- 20% מכל מקרי סרטן הריאות מאובחנים כסרטן הריאה מסוג של תאים קטנים (SCLC).

הסיכון לסרטן הריאות עולה כתוצאה מגורמים סביבתיים, המהווים את הגורם העיקרי למחלה, ביניהם חומרים המגיעים אל הריאות בדרכי הנשימה כדוגמת ניקוטין כתוצאה מעישון, פיח, עשן וזיהום אוויר. ובתוך כך נודע, כי היום הבינלאומי ללא עישון צוין בישראל ובעולם ב- 31 במאי, להגברת המודעות לנזקי העישון ולעודד אורח חיים בריא.

להלן מידע נוסף:

GlaxoSmithKline (GSK) announced that oral Hycamtin® (topotecan hard capsules) have received approval from the European Commission for the treatment of relapsed SCLC.  Specifically, topotecan hard capsules are indicated as monotherapy for the treatment of adult patients with relapsed SCLC (PS0-2 )  for whom re-treatment with the first-line regimen is not considered appropriate.

Topotecan is already available as an intravenous (IV) injection and the approval of topotecan hard capsules provides physicians and patients with another convenient option.

“The approval of topotecan hard capsules is welcome news for patients and their physicians. Small cell lung cancer is a very aggressive disease and there are limited treatment options after relapse,” said Dr. Mary O'Brien, Head of the Lung Cancer Unit at The Royal Marsden Hospital, Surrey, UK. “Topotecan not only improves symptoms and extends the lives of patients, but as it is in capsule form treatment can be started without delay.”

“The European approval of topotecan as an oral formulation is good news for patients with relapsed small cell lung cancer across Europe. Topotecan hard capsules provide physicians and patients with an alternative, effective treatment, with the added convenience of being administered orally,” said Eddie Gray, President, Pharmaceuticals Europe, and GlaxoSmithKline. “The approval of topotecan capsules continues to underscore GSK’s commitment to the research and development of therapies to address the unmet medical needs of cancer patients around the world.”

Data Submitted
The approval was based on positive results from a Phase III study comparing topotecan hard capsules plus best supportive care (BSC ) to BSC alone in patients with relapsed SCLC, in addition to Phase II and Phase III supporting studies.

In the pivotal Phase III multicentre trial, 141 patients with relapsed SCLC not considered as candidates for standard IV therapy were randomised to receive BSC alone [n = 70] or topotecan capsules plus BSC [n = 71].  Topotecan capsules added to BSC were associated with prolonged survival in patients with relapsed SCLC (p = 0.0104, HR = 0.64). Median overall survival for topotecan capsules plus BSC was 25.9 weeks (95% CI, 18.3. to 31.6 weeks) compared to 13.9 weeks (95% CI, 11.1 to 18.6 weeks), indicating a 36% reduction in risk of death for patients who received topotecan capsules plus BSC compared with patients who received BSC alone.

During the Phase III study the most common Grade 3 or 4 toxicities with topotecan capsules were neutropenia, anaemia, thrombocytopenia, nausea, diarrhoea, vomiting, fatigue, and alopecia.ii

Supporting Studies Submitted
Supportive efficacy and safety data were provided from a Phase II and a Phase III study, each of which compared topotecan capsules (oral) directly to topotecan (IV) in patients with relapsed sensitive SCLC.

In the Phase III study median survival time was 33.0 weeks (95% CI, 29.1 to 42.4 weeks) in the oral group and 35.0 weeks (95% CI, 31.0 to 37.1 weeks) in the IV group, and both treatments were generally well-tolerated.   Safety data were presented for the three efficacy studies mentioned above and for an integrated relapsed lung cancer study population of 682 patients. The safety profile was consistent across all four studies.iii, , ,

About Small Cell Lung Cancer (SCLC)
Lung cancer is the third most common cancer in Europe contributing to 12.1% of all cancer cases, but it is the most common cause of death from cancer, with an estimated 334,800 deaths in 2006 (19.7% of total deaths from cancer).   About 20 out of every 100 cases diagnosed are SCLC. Of all those diagnosed with SCLC, around one in three have limited (early) disease at the time of diagnosis. Two in three already have extensive (advanced) disease at the time of diagnosis. Of those who have limited disease and have chemotherapy, between 35 – 40% will be alive two years following treatment. People with extensive disease are also treated with chemotherapy, but unfortunately the survival rate is even lower. Most only survive another 10 to 12 months following treatment.

About Hycamtin
Hycamtin (topotecan) is a chemotherapeutic agent that belongs to a class of drugs known as topoisomerase I (topo-I) inhibitors. Topo-I is an enzyme essential for the replication of DNA, and therefore cell division, in both normal and cancer cells. Interaction between topo-I and topotecan results in damage to the cell’s cancerous genetic material and the death of dividing cancer cells.vi

GSK in Oncology
GSK Oncology is dedicated to producing innovations in cancer that will make profound differences in the lives of patients. Through GSK’s revolutionary ‘bench to bedside’ approach, we are transforming the way treatments are discovered and developed, resulting in one of the most robust pipelines in the oncology sector. Our worldwide research in oncology includes partnerships with more than 160 cancer centres. GSK is closing in on cancer from all sides with a new generation of patient focused cancer treatments in prevention, supportive care, chemotherapy and targeted therapies.

About GlaxoSmithKline
GlaxoSmithKline – one of the world's leading research-based pharmaceutical and healthcare companies – is committed to improving the quality of human life by enabling people to do more, feel better, and live longer. For company information, visit GlaxoSmithKline at http://www.gsk.com.

To access the latest GSK Oncology media materials, visit www.gskcancermedia.com