Attorney General Letitia James of New York said on Thursday that she had filed a lawsuit against a for-profit stem cell clinic, Park Avenue Stem Cell, claiming it performed unproven, rogue procedures on patients with a wide range of medical conditions, from erectile dysfunction to heart disease.

“Misleading vulnerable consumers who are desperate to find a treatment for serious and painful medical conditions is unacceptable, unlawful, and immoral,” Ms. James said in a statement. “We will continue to investigate these types of clinics that shamelessly add to the suffering of these consumers by charging them thousands of dollars for treatments that they know are ineffective.”

The lawsuit is part of the attorney general’s broader look at dubious medical claims being made by stem cell clinics in New York. It comes on the heels of repeated attempts to crack down on the stem cell industry by the Food and Drug Administration, which warned nearly two dozen clinics earlier this week to stop selling treatments that could harm patients.

The clinics have proliferated around the country, despite a lack of evidence that would support claims that stem cell injections can repair aging joints or regenerate tissue.