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. Author manuscript; available in PMC: 2021 Jun 1.
Published in final edited form as: J Glob Antimicrob Resist. 2019 Oct 7;21:171–180. doi: 10.1016/j.jgar.2019.09.017

Table 5.

Anti-SA Activity – PD Population

XF-73 in 2% Gel 0.5 mg/g (N = 11) XF-73 in 2% Gel 2.0 mg/g (N = 13) XF-73 in 4% Gel 0.5 mg/g (N = 12) All Active Treatments (N = 36) Placebo in 4% Gel (N = 12)
Day 1: Absence of SA Colonization
 No 10 (90.9%) 13 (100.0%) 12 (100.0%) 35 (97.2%) 11 (91.7%)
 Yes 1 (9.1%) 0 0 1 (2.8%) 1 (8.3%)
p-value vs. Placebo 0.7391 1.0000 1.0000 0.9415 n/a
Day 2: Positive Response to Treatment
 No 4 (36.4%) 5 (38.5%) 6 (50.0%) 15 (41.7%) 9 (75.0%)
 Yes 7 (63.6%) 8 (61.5%) 6 (50.0%) 21 (58.3%) 3 (25.0%)
p-value vs. Placebo 0.0736 0.0749 0.2002 0.0467 n/a
Day 3: Positive Response to Treatment
 No 5 (45.5%) 6 (46.2%) 6 (50.0%) 17 (47.2%) 8 (66.7%)
 Yes 6 (54.5%) 7 (53.8%) 6 (50.0%) 19 (52.8%) 4 (33.3%)
p-value vs. Placebo 0.2735 0.2655 0.3401 0.2028 n/a
Day 4: Positive Response to Treatment
 No 5 (45.5%) 6 (46.2%) 5 (41.7%) 16 (44.4%) 7 (58.3%)
 Yes 6 (54.5%) 7 (53.8%) 7 (58.3%) 20 (55.6%) 5 (41.7%)
p-value vs. Placebo 0.4211 0.4179 0.3421 0.3084 n/a
Day 5: Positive Response to Treatment
 No 4 (36.4%) 5 (38.5%) 5 (41.7%) 14 (38.9%) 6 (50.0%)
 Yes 7 (63.6%) 8 (61.5%) 7 (58.3%) 22 (61.1%) 6 (50.0%)
p-value vs. Placebo 0.4067 0.4296 0.5000 0.3649 n/a
Day 6: Positive Response to Treatment
 No 4 (36.4%) 6 (46.2%) 7 (58.3%) 17 (47.2%) 7 (58.3%)
 Yes 7 (63.6%) 7 (53.8%) 5 (41.7%) 19 (52.8%) 5 (41.7%)
p-value vs. Placebo 0.2632 0.4179 0.6599 0.3700 n/a
Day 14: Positive Response to Treatment
 No 5 (45.5%) 12 (92.3%) 12 (100.0%) 29 (80.6%) 11 (91.7%)
 Yes 6 (54.5%) 1 (7.7%) 0 7 (19.4%) 1 (8.2%)
p-value vs. Placebo 0.0240 0.7800 1.0000 0.3457 n/a

n/a = not applicable, PD = pharmacodynamics(s).

Note: Positive response to treatment was defined as reaching an absence of SA colonization, which was indicated by a semi-quantitative SA score of “Negative” or 0. P-values are from pairwise one-sided Fisher’s exact tests versus placebo.