RALEIGH, N.C. — A former inmate can go ahead with his lawsuit that claims an administrator and the chief doctor at a federal prison in North Carolina denied him treatment for diabetes and other ailments.

The U.S. Supreme Court this week opted not to block the case that Paul Scinto filed against officials at the low-security federal correctional institution in Butner, North Carolina. That keeps in place a lower appeals court’s ruling that allows Scinto to take his case to trial as early as next year.

Scinto was serving a sentence of more than six years for dealing the drug PCP when he said he was denied adequate medical care and suffered further complications. The appeals court last year ruled prison officials appeared to show deliberate indifference to his medical needs.