Imatinib Mesylate News and Research

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Imatinib mesylate (also called Gleevec® or STI571) is approved by the U.S. Food and Drug Administration (FDA) for the treatment of some forms of adult and pediatric chronic myelogenous leukemia (CML), and for the treatment of a rare form of cancer called gastrointestinal stromal tumor (GIST).

With CML, imatinib works by blocking an abnormal enzyme characteristic of the disease. In GIST, imatinib blocks a different abnormal enzyme found on the tumor cells.

Imatinib is the first approved drug to directly turn off the signal of a protein known to cause a cancer. Other molecular-targeting drugs previously approved by the FDA interfere with proteins associated with other cancers, but not with proteins that directly cause the disease.

Imatinib is being investigated for its effectiveness against other kinds of cancer, as well, including acute lymphocytic leukemia and hypereosinophilic syndrome (HES).

Cancer treatment interferes with bone development

According to researchers in the U.S. the cancer drug Gleevec (imatinib), which has dramatically improved survival prospects for some cancer patients, can interfere with bone development.

11 May 2006

Finding indicate why some kinds of Leukemia are more aggressive than others

New clues to why some kinds of leukemia are more aggressive and deadly than others are coming from research examining the types of genetic damage that allow some blood cells to grow out of control, scientists report.

28 Apr 2006

Arf gene loss enhances oncogenicity and limits imatinib response in mouse models of Bcr-Abl-induced acute lymphoblastic leukemia

23 Apr 2006

Dasatinib provides significant benefit in chronic myeloid leukemia patients resistant to Gleevec

A study led by researchers from the Howard Hughes Medical Institute has found that dasatinib provides significant benefit in chronic myeloid leukemia (CML) patients resistant to Gleevec. (imatinib), according to a study presented during the 97th Annual Meeting of the American Association for Cancer Research.

11 Apr 2006

Genzyme launches test to monitor Gleevec resistance

Genzyme Corporation has announced the availability of an important new test to monitor drug resistance in chronic myeloid leukemia (CML) patients who are treated with Gleevec (imatinib mesylate).

13 Feb 2006

Targeted cancer therapies: Another step forward

While it is clear that the treatment of cancer has already begun to undergo a paradigm shift with the inclusion of innovative targeted therapies into current regimens, it would be wrong to assume these products will entirely replace traditional chemotherapy as the standard treatment for cancer sufferers.

22 Dec 2005

Targeted cancer therapies: Another step forward

22 Dec 2005

Imatinib mesylate (Gleevec) may not be effective at treating kidney cancer

Mayo Clinic Cancer Center investigators report that imatinib mesylate (GleevecTM), the drug used to treat patients with gastrointestinal stromal cancers (GISTs), is not likely to be effective for patients with high grade renal cell carcinoma -- the most aggressive kidney cancer.

22 Dec 2005

Gleevec's uses might expand even further

Gleevec (Imatinib) is a representative of the newest generation of cancer drugs. The substance conveys its potent anti-proliferative effect by selectively supressing the tyrosine kinase pathway. The Giessen lung researchers now issue a first report of this substance as a new target therapy for pulmonary hypertension

4 Oct 2005

New drug may help treat certain forms of leukemia

A new experimental drug may be effective against a certain form of leukemia resistant to current treatments, research at UT Southwestern Medical Center shows.

2 May 2005

Why some lung cancers stop responding to the drugs erlotinib (Tarceva) and gefitinib (Iressa)

Researchers at Memorial Sloan-Kettering Cancer Center (MSKCC) have found an explanation for why some lung cancers stop responding to the drugs erlotinib (Tarceva) and gefitinib (Iressa).

22 Feb 2005

Vaccine that boosts the immune response could improve the effect of conventional treatment for patients with chronic myeloid leukaemia

CML is caused by the breakage and swapping of chromosomes 9 and 22, which results in a shortened chromosome called the Philadelphia chromosome. Cells with the abnormal chromosome make a protein that encourages aberrant growth and division. Patients with CML can be treated with a drug called imatinib or interferon alfa.

20 Feb 2005

New compound AMN107 may help treat some imatinib resistant cancer cases

As scientists uncover the precise molecular mechanisms that underlie effective cancer treatments, they gain invaluable insight into why predominantly successful treatments fail for some patients.

14 Feb 2005

Study shows long-term benefits for chronic myeloid leukemia patients receiving therapy with imatinib

CHU in Poitiers, France, yesterday announced results of a study showing that newly diagnosed patients with a certain form of leukemia who are treated early with imatinib are more likely to achieve complete cytogenetic responses (the elimination of leukemic cells, a major goal of therapy) and have improved long-term outcomes.

6 Dec 2004

A new treatment for patients with chronic myeloid leukemia

A new treatment for patients with chronic myeloid leukemia (CML) -- a disorder marked by an overproduction of white blood cells -- yields positive results in those who have relapsed on imatinib, the standard treatment for the disease, according to a Phase I study to be presented today at the 46th Annual Meeting of the American Society of Hematology (ASH).

5 Dec 2004

Imatinib mesylate (Gleevec) inhibits important pathways that spur cancer growth

A new clinical study has shown that imatinib mesylate (Gleevec) has activity in AIDS-related Kaposi's sarcoma (KS). Imatinib inhibits important pathways that spur cancer growth, resulting in the regression of KS tumors within 4 weeks in some patients. The study will be published November 30 in the Journal of Clinical Oncology (JCO).

30 Nov 2004

Researchers have documented a novel form of resistance in leukemia cells to an anti-cancer drug

Researchers at Virginia Commonwealth University’s Massey Cancer Center have documented a novel form of resistance in leukemia cells to an anti-cancer drug, which could help scientists develop new strategies for treating the disease.

8 Nov 2004

Possible treatment for the fatal lung disease idiopathic pulmonary fibrosis

They found that the anti-cancer drug imatinib mesylate — commercially known as Gleevec and produced by Novartis Pharmaceuticals — can target a gene critical to controlling the disease process. Previously, there had been no treatment and patients usually did not survive beyond three years of diagnosis. Now the treatment is undergoing clinical trials at Mayo Clinic.

2 Nov 2004