New York City’s Office of Chief Medical Examiner said on Thursday that it was conducting an investigation into the death of a stagehand at the Broadway musical “How to Succeed in Business Without Really Trying.”

Ellen Borakove, a spokeswoman for the medical examiner’s office, said that an autopsy was conducted on the stagehand, a 29-year-old man whose name has not been released, and that it would be “a couple of weeks” before the results of further study and testing were available. Ms. Borakove said that toxicology tests would be conducted.

The Wednesday night performance of “How to Succeed” at the Al Hirschfeld Theater was canceled after the stagehand was found unconscious and in cardiac arrest backstage before 8 p.m. The stagehand was taken to St. Luke’s Roosevelt Hospital and pronounced dead on arrival.

Police have said that the stagehand suffered a drug overdose, and no criminality is suspected. The medical examiner’s office is charged with investigating deaths that occur “by accident, by suicide” and “suddenly when in apparent health,” according to a statement on its Web site.

Press representatives for “How to Succeed” said that the production was expected to resume performances on Thursday night. A representative for the Local One stagehands union said it had no comment “except to add the union’s thoughts and prayers are with the family of our brother member.”