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. Author manuscript; available in PMC: 2016 Apr 19.
Published in final edited form as: Clin Trials. 2012 Oct 2;9(6):788–797. doi: 10.1177/1740774512458992

Table 1.

Number and percent of patients ineligible for clinical trials, overall and by race

African-American, n = 341
White, n = 507
Total, N = 848
n (%) n (%) N (%)
Comorbidity 68 (19.8) 91 (18.0) 159 (18.8)
Prior treatment* 48 (14.0) 99 (19.6) 147 (17.3)
Extent of disease 53 (15.4) 76 (15.0) 129 (15.2)
Histopathology nonmatch 33 (9.6) 45 (8.9) 78 (9.2)
Second/multiple primary 16 (4.7) 27 (5.3) 43 (5.1)
No available protocol 10 (2.9) 25 (4.9) 35 (4.1)
Performance status 15 (4.4) 15 (3.0) 30 (3.5)
Interval since diagnosis or treatmenta 8 (2.3) 20 (4.0) 28 (3.3)
Stage of disease 10 (2.9) 18 (3.6) 28 (3.3)
Does not meet trial-specific eligibility requirements 9 (2.6) 19 (3.8) 28 (3.3)
Physician decisionb 12 (3.5) 15 (3.0) 27 (3.2)
Anticipated noncompliance* 21 (6.1) 5 (0.99) 26 (3.1)
Cancer characteristics 7 (2.0) 16 (3.2) 23 (2.7)
Mental status/cognitive impairmentc** 13 (3.8) 3 (0.59) 16 (1.9)
Age exclusion 2 (0.58) 5 (0.99) 7 (0.8)
Enrolled in competing study 1 (0.29) 4 (0.79) 5 (0.6)
Language barrier 0 (0.00) 1 (0.20) 1 (0.1)
Missing reason for ineligibility 17 (5.0) 21 (4.2) 38 (4.5)
a

Includes evaluations for patients who had insufficient time or too much time elapsed to meet a particular eligibility criterion.

b

Physician determined that a patient was not a good candidate for a trial or physician preferred standard therapy for the patient.

c

Judged by research staff or attending physician as patient having an inability to comprehend informed consent.

*

Chi-squared test, 0.001 <p > 0.0001.

**

Chi-squared test, p <0.0001.