The drug is a promising lead in Alzheimer's disease research.

The death of the three thugs had ended a promising lead.

The case, investigators said, had promising leads from the start.

Prosecutors were looking for the mother but had yet to develop any promising leads, he said.

Anyway the first one is always wrong, a, dead end, a promising lead that blows up in your face with no music.

A great deal of the necessary police work has been done, but we haven't come upon any promising lead as yet.

If any promising leads come up, I want to know about them pronto.

The search has gone on for nine days, and there have been promising leads.

Then I'll check the daily charts from our most promising leads.

Police were said to be following several "promising leads" in the case.