3.1 Rates of race reporting and participation trends
We analyzed the demographic data from a total of 426 lung cancer phase III clinical trials. It was not possible for us to identify US only studies as most studies had authorships from multiple institutions across various regions in the US, Europe, and Asia in various combinations. Only 137 studies (32.2%) reported race as a demographic (Figure 2A) The remaining 289 studies (67.8%) did not report race. Interestingly, we found that from all the studies we analyzed, no study published before 1992 reported demographic data on patient race (Figure 2C). After 1992, more studies started reporting race (Figure 2C). However, race reporting did not appear to improve over time since 1993 (Figure 2C). Out of the 137 studies that reported demographic data on participants’ race, 128 studies (93.4%) reported the rate of White participation, 97 studies (70.8%) reported the rate of Asian participation, 92 studies (67.2%) reported the rate of African American participation, 23 studies (16.8%) reported rate of Hispanic participation, 106 studies (77.4%) reported a race that fit into the other category, and 22 studies (16.1%) reported the rate of participants whose race was unknown (Figure 2B).