The use of these drugs remains at the research stage.

But he reserved judgment on whether it should be taken beyond the research stage.

The work is still in a research stage, and the possible therapies are years away, if they pan out at all.

This technology is still in the research stage and has not yet been scaled to commercial production levels.

That can put pressure on companies still in the research stage to come up with a product to sell quickly.

There's no place to take them, and sterilization is in the research stages.

A number of other drugs are in advanced research stages.

Congress, too, is uneasy about the new weapons, which are still in the research stage.

This work is just in the research stage but is expected to come to industry very soon.

Some of these techniques are still at a research stage and not yet used in clinical routines.