Ilinois will not expand the list of conditions that qualifies people to get medical marijuana, Gov. Bruce Rauner‘s administration announced Friday.

The announcement came despite pleas from patient advocates and medical marijuana business owners who say they need more patients to make the industry viable in the state. So far, only about 4,000 people have been approved to use the drug, far below early estimates.

The decision was announced by the Illinois Department of Public Health’s director, Dr. Nirav Shah.

Melaney Arnold, department spokeswoman, said the program “remains in its early stage.”

“As patients have just started purchasing medical cannabis, the State has not had the opportunity to evaluate the benefits and costs of the pilot program or determine areas for improvement or even whether to extend the program beyond its pilot period,” she said in an email. “At this time, it is premature to expand the pilot program before there is the ability to evaluate it under the current statutory requirements.” [Read more at the Chicago Tribune]