Evaluation of Postmarketing Reports from Industry-Sponsored Programs in Drug Safety Surveillance

Adverse event reports from industry-sponsored programs, such as patient support programs, have contributed to a rise in the number of individual case safety reports in the US Food and Drug Administration Adverse Event Reporting System database. This study aimed to characterize individual case safety reports from industry-sponsored program and non-industry-sponsored program sources and compare their usefulness in safety signal detection.

Individual case safety reports of six drug and biological products were identified in the Food and Drug Administration Adverse Event Reporting System database between the date of Food and Drug Administration product approval and the first quarter of 2017. A random subset of industry-sponsored program and non-industry-sponsored program individual case safety reports were then compared to identify differences in reporters, outcomes, data completeness, and usefulness. The 'usefulness' of individual case safety reports was assessed by manually reviewing the availability of key information in the narrative (e.g., temporality, comorbidities).

Compared with non-industry-sponsored program reports, more industry-sponsored program reports were associated with a serious outcome (51.4% vs. 58.8%, p = 0.02) and were reported by consumers (35.5% vs. 50.4%, p < 0.01). Industry-sponsored program reports tended to contain more data elements than non-industry-sponsored program reports (i.e., age, sex, indication for use), but completeness was variable across products. No significant difference in usefulness was identified between non-industry-sponsored program and industry-sponsored program individual case safety reports (30.6% vs. 28.5%, p = 0.42). Useful reports that contained at least one serious, unlabeled adverse event represented only 4% and 6.2% of the non-industry-sponsored program and industry-sponsored program report cohorts, respectively.

Our study suggests that reports obtained from industry-sponsored programs in the Food and Drug Administration Adverse Event Reporting System database contain more data elements but are similar to non-industry-sponsored program reports with regard to 'usefulness' in signal detection.