Assessment of Provider Adherence to Recommended Monitoring Parameters for Oral Anticancer Medications

Oral anticancer medications (OAMs) offer convenient administration but create new challenges with unique toxicity profiles, specific monitoring parameters and non-continuous dosing schedules. We evaluated provider compliance with US Food and Drug Administration (FDA) drug labeling-specified monitoring parameters for commonly dispensed OAMs at a public academic health system.

A retrospective chart review of patients receiving OAMs was conducted at Grady Health System between July 2015 and June 2016. Patients included in the evaluation were dispensed one of the ten most common OAMs used in our cancer center. Laboratory data and provider documentation were collected and compared to FDA drug labeling-specified monitoring parameters, and the primary outcome was the percentage of fully-compliant cycles. Secondary outcomes included patient adherence assessed by provider documentation and fill history. Descriptive statistics were used to evaluate the data.

The initial report comprised 422 patients, of which 77 patients with a total of 349 treatment cycles were included for final analysis. One hundred twenty-six (36.1%) of the treatment cycles were fully compliant with the FDA drug labeling-specified monitoring parameters. Sixty-four of the 199 (32.2%) applicable clinic notes documented patient adherence, and 15 (39.5%) of 38 patients were adherent based on fill history.

This study revealed low compliance with FDA-recommended monitoring parameters for commonly dispensed OAMs at our institution. In addition, this study confirmed national concerns about adherence to oral regimens. It also suggests that provider compliance with monitoring parameters is an area that needs to be addressed in order to improve the ambulatory OAM process.