A bill inspired by former President Jimmy Carter’s treatment for cancer cleared the Senate and is headed to the governor’s desk.

The bill prevents insurance companies from limiting coverage of drugs for stage 4 cancer patients.

Carter, now 91, announced in August that he had been diagnosed with skin cancer that had spread to his brain and would begin receiving doses of Keytruda. The newly approved drug helps his immune system seek out cancer cells appearing in his body.

Carter said this month that he no longer needed to receive the drug treatments.

Rep. Mike Cheokas, a Republican from Americus who sponsored the bill, has said no one facing cancer that has spread should have medical treatment options limited by insurance providers.