APOA-1

Resverlogix's RVX-208 is aimed at increasing the body's production of this protein, which builds HDL

CETP INHIBITORS

Now being tested by Merck and Roche, these drugs block enzymes that break down HDL

LXR AGONISTS

Molecules that help remove more cholesterol from arteries, under development at Bristol-Myers Squibb and Exelixis

HDL MIMETICS

Compounds that mimic HDL's beneficial action, under development at CSL and The Medicines Co.

Data: Company reports