The companies say the method is a cheaper and easier way to produce biotechnology drugs.

Then came the failures of a few high-profile biotechnology drugs.

The new biotechnology drugs do not seem to have such serious side effects, doctors said.

Only 28 biotechnology drugs have been approved for sale to the public, but more than 270 are in clinical trials.

Barr Laboratories says it is working on one biotechnology drug and is looking for others.

Patients in the trial had failed to benefit from at least one of the already approved biotechnology drugs for arthritis.

Two new biotechnology drugs moved closer to coming to market yesterday.

He said the longer approval times for biotechnology drugs resulted from their greater complexity and novelty, factors that will not change.

The promise of many biotechnology drugs is that they are the body's own solutions.

Antibodies represent about 20 percent of all the biotechnology drugs in clinical trials.