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. 2024 Apr 23;144(1):35–45. doi: 10.1182/blood.2023022658

Table 2.

Primary, key secondary, and select secondary end points (ITT population)

End point Mavorixafor (n = 14) Placebo (n = 17) LS mean difference from placebo (SE), LS mean difference 95% CI P value
Primary end point
 Overall TATANC, LS mean (SE), h, 95% CI 15.0 (1.9)
11.2-18.9
2.8 (1.5)
0-5.9
12.3 (2.5)
7.2-17.4
P < .001
Key secondary end point
 Overall TATALC, LS mean (SE), h, 95% CI 15.8 (1.4)
13.0-18.7
4.6 (1.1)
2.2-6.9
11.3 (1.8)
7.5-15.0
P < .001
 Composite efficacy score at 52 wk, LS mean (SE), 95% CI n = 11
26.7 (3.5)
19.9-33.5
n = 17
33.4 (2.8)
27.9-38.8
−6.6 (4.5)
−15.5 to 2.2
P = .14
 Total wart change score at 52 wk (based on CGI-C), LS mean (SE), 95% CI n = 11
−1.1 (0.7)
−2.5 to 0.3
n = 17
−1.2 (0.5)
−2.2 to −0.1
0.1 (0.9)
−1.7 to 1.8
P = .94
 Total infection score, LS mean (SE), 95% CI 7.4 (2.8)
1.6-13.2
12.3 (2.4)
7.2-17.3
−4.9 (3.7)
−12.6 to 2.9
P = .21
Select secondary end point
 Annualized infection rate, LS mean (SE) 1.7 (0.5) 4.2 (0.7) 0.4 (0.2-0.8)§ P = .007
 Infection severity based on CTCAE grade, n (%)
 Grade 1 8 (57.1) 8 (47.1)
 Grade 2 2 (14.3) 3 (17.6)
 Grade 3 1 (7.1) 4 (23.5)
 Grade 4 0 1 (5.9)
 Grade 5 0 0
 Proportion of participants with infections, n (%)
 ≥5 infections 1 (7.1) 5 (29.4) P = .13
 <5 infections 13 (92.9) 12 (70.6)
 Infection duration, median (range), d 8.5 (0-43) 32.0 (8-134)
 Overall vaccine titer (tetanus), LS mean (95% CI) 1.3 (0.8-2.0) 0.8 (0.5-1.2) 1.6 (1.0-2.6) P = .039

CGI-C, Clinical Global Impression of Change; CTCAE, Common Terminology Criteria for Adverse Events; ITT, intent-to-treat.

TATANC of ≥0.5 × 103/μL over a 24-hour period, assessed every 3 months for 12 months.

TATALC of ≥1.0 × 103/μL over a 24-hour period assessed every 3 months for 12 months.

If the analysis for a specific end point was not statistically significant, results for subsequent end points were considered nominal.

§

Data reported as ratio (95% CI).

Eight participants receiving placebo and 10 participants receiving mavorixafor were vaccinated with tetanus vaccines at week 13. All participants in the ITT population were followed through week 52.

Data reported as LS mean ratio (95% CI).