Adding Avastin® (bevacizumab) to chemotherapy for early stage colon cancer didn’t reduce the risk that cancer would return.

In fact, preliminary results of the AVANT trial found that chemotherapy alone worked better in preventing recurrences of stage III and high-risk stage II colon cancer, according to a news release from Roche, sponsors of the international clinical trial.

This is the second trial in which adding Avastin to chemotherapy after surgery for early stage colon cancer failed to show a disease-free survival benefit.  The C-08 trial found that, although Avastin did improve disease-free survival during the first year of treatment, the benefit had disappeared by the third year.

The results of the AVANT trial have been eagerly awaited since conclusions of the similar C-08 trial were announced in 2009. Read the rest of this entry »

Some colorectal cancer patients whose tumors had gotten worse on all standard treatments benefited from a combination of Afinitor® (everolimus) and Avastin® (bevacizumab) during a small trial reported at the 2010 ASCO Annual meeting in Chicago.

While no tumors got smaller on the treatment, about half of patients in the Phase II trial had their cancer remain stable for six months or more.  Three patients have had stable disease for more than a year.

Seven out of ten patients in the trial had at least one serious side effect.  The most common was hypertension, but there were several bowel abscesses or fistulas and one case of bowel perforation.  There was one death due to treatment infection.

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It doesn’t hurt to stop XELOX chemotherapy combined with Avastin after six treatments and continue with Avastin alone until colorectal cancer gets worse, according to a study reported at the 2010 Annual Meeting of the American Society of Clinical Oncology in Chicago.

Many patients have to stop oxaliplatin chemotherapy with before getting its maximum effectiveness because of peripheral neuropathy — tingling, numbness, or pain in their hands and feet.  Xeloda® (capecitabine) can cause painful skin redness and cracking on the hands and feet or hand-foot syndrome, which can also affect time on chemotherapy.

Giving only six treatments of Avastin® (bevacizumab) plus XELOX chemotherapy and then stopping XELOX and using only Avastin until cancer progressed was as effective for the initial or first-line treatment of colorectal cancer as continuing XELOX.  XELOX combines Xeloda® (capecitabine) with oxaliplatin.

In addition, the strategy reduced both severe peripheral neuropathy and hand-foot syndrome.

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Colorectal cancer patients benefited when they continued to include Avastin® (bevacizumab) in their chemotherapy plan after their cancer got worse after initial treatment.

They lived longer after beginning a second round of chemotherapy with Avastin than did other patients who got chemo without Avastin or those who didn’t get any chemotherapy at all.

The results are based on the ARIES study which observed patients after cancer progressed after either first or second line chemotherapy with Avastin.  The analysis will be presented at the American Society of Clinical Oncology in June. Read the rest of this entry »

Colorectal cancer patients 65 and older without other serious medical problems benefitted when Avastin® (bevacizumab) was added to chemotherapy.

Combining results of four randomized clinical trials of Avastin and chemotherapy in patients with advanced colorectal cancer, researchers found that adding Avastin increased both the time older patients lived and the time before their cancer got worse.

Patients who were 70 and older had similar improvements. Read the rest of this entry »