Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Twice daily imatinib could improve outcome for people with specific form of gastro-intestinal cancer

24.09.2004


Results of a randomised trial in this week’s issue of THE LANCET suggest that a single daily 400 mg dose of imatinib—known to be a first-choice treatment for gastro-intestinal stromal tumours (GIST)—is sufficient to induce a therapeutic response; a doubling of a daily dose can slightly improve progression-free survival for patients.

Imatinib is approved worldwide for use in GIST, tumours which do not respond to conventional chemotherapy, which have a prevalence of around 20 per 100,000 population. Jaap Verweij (Erasmus University Medical Center, Netherlands) and colleagues from the European Organisation for Research and Treatment of Cancer (EORTC), the Italian Sarcoma Group (IRG), and the australasian Gastrointestinal Trials Group (AGITG) studied 946 patients with metastatic GIST who were randomly allocated either imatinib 400 mg once or twice a day.

50% of patients receiving two doses of imatinib a day, compared with 56% of patients given a single dose, were alive and free of disease progression at around 2 years follow-up. There was no difference in the proportion of patients (99%) who reported treatment side-effects; the optimum time for therapeutic effect after the start of treatment did not differ between the two groups (around 4 months).


Dr Verweij comments: “If the aim of treatment is response induction, a daily dose of 400 mg given for 4–6 months seems to be sufficient. However, in patients with widespread metastatic disease, the prolonged progression-free survival achieved with 400 mg twice daily might lead one to favour this regimen. Whether a similar outcome could be achieved with fewer side-effects by making use of the reduction in drug clearance over time—eg, with a starting dose of 400 mg daily followed by stepwise dose escalation to 400 mg twice a day—is still a matter for further clinical investigations.”

In an accompanying commentary (p 1101), Yoichi Kitamura (Tokyo Women’s Medical University, Japan) concludes: “Although only 4 years have passed since the start of imatinib treatment in GIST, worldwide cooperation, as in this EORTC study, has enabled us to share an enormous amount of well-organised information in a short period. This field is progressing phenomenally, and we have to look out for progress on a daily basis.”

Richard Lane | alfa
Further information:
http://www.thelancet.com

More articles from Health and Medicine:

nachricht World first: Massive thrombosis removed during early pregnancy
20.07.2017 | Universitätsspital Bern

nachricht Therapy of preterm birth in sight?
19.07.2017 | Universitätsspital Bern

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Manipulating Electron Spins Without Loss of Information

Physicists have developed a new technique that uses electrical voltages to control the electron spin on a chip. The newly-developed method provides protection from spin decay, meaning that the contained information can be maintained and transmitted over comparatively large distances, as has been demonstrated by a team from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute. The results have been published in Physical Review X.

For several years, researchers have been trying to use the spin of an electron to store and transmit information. The spin of each electron is always coupled...

Im Focus: The proton precisely weighted

What is the mass of a proton? Scientists from Germany and Japan successfully did an important step towards the most exact knowledge of this fundamental constant. By means of precision measurements on a single proton, they could improve the precision by a factor of three and also correct the existing value.

To determine the mass of a single proton still more accurate – a group of physicists led by Klaus Blaum and Sven Sturm of the Max Planck Institute for Nuclear...

Im Focus: On the way to a biological alternative

A bacterial enzyme enables reactions that open up alternatives to key industrial chemical processes

The research team of Prof. Dr. Oliver Einsle at the University of Freiburg's Institute of Biochemistry has long been exploring the functioning of nitrogenase....

Im Focus: The 1 trillion tonne iceberg

Larsen C Ice Shelf rift finally breaks through

A one trillion tonne iceberg - one of the biggest ever recorded -- has calved away from the Larsen C Ice Shelf in Antarctica, after a rift in the ice,...

Im Focus: Laser-cooled ions contribute to better understanding of friction

Physics supports biology: Researchers from PTB have developed a model system to investigate friction phenomena with atomic precision

Friction: what you want from car brakes, otherwise rather a nuisance. In any case, it is useful to know as precisely as possible how friction phenomena arise –...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

»We are bringing Additive Manufacturing to SMEs«

19.07.2017 | Event News

The technology with a feel for feelings

12.07.2017 | Event News

Leipzig HTP-Forum discusses "hydrothermal processes" as a key technology for a biobased economy

12.07.2017 | Event News

 
Latest News

Researchers create new technique for manipulating polarization of terahertz radiation

20.07.2017 | Information Technology

High-tech sensing illuminates concrete stress testing

20.07.2017 | Materials Sciences

First direct observation and measurement of ultra-fast moving vortices in superconductors

20.07.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>