House Oversight Committee Chair Elijah Cummings (D-MD) on Monday (Jan. 14) launched an investigation into brand drug makers’ pricing practices weeks before he holds the first in a series of hearings on rising drug prices. Cummings is asking 12 brand drug makers for information on pricing practices and research and development investments. The investigation focuses on the most expensive drugs for beneficiaries, the costliest drugs to Part D and drugs that have had the biggest price increases over the past...