Two states that require pharmaceutical companies to report how much they spend on marketing their products saw little shift away from brand-name drugs in doctors’ prescribing habits, said a study in the May 28 Archives of Internal Medicine.

The findings come as the Centers for Medicare & Medicaid Services works to address more than 300 responses from physician organizations, drugmakers and others to its proposed rule to implement the Physician Payments Sunshine Act that was included in the 2010 health-system reform law. In May, CMS announced that federal requirements for medical industry firms to collect data on payments to doctors would not begin until 2013. They had been set to start this year.

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