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Table 3 Therapeutic responses and recurrence free condition in the patients*

From: Artemisinin-naphthoquine plus lower-dose primaquine to treat and prevent recurrence of Plasmodium vivax malaria: an open-label randomized and non-inferiority trial

Responses

ANPQ3 group (N = 172)

CQPQ14 group (N = 116)

Difference of percentage point (95% CI)

P value

Mean fever clearance ± SD (range)—h

27.1 ± 8.0 (24.0–48.0)

35.0 ± 12.4 (24.0–72.0)

–

 < 0.0001

Fever clearance in 24 h—no. (%; 95% CI)

150 (87.2; 81.3–91.8)

64 (55.2; 45.7–64.4)

32.0 (21.7–42.4)

 < 0.0001

Mean parasite clearance ± SD (range)—h

27.9 ± 9.6 (24.0–72.0)

36.8 ± 15.3 (24.0–96.0)

–

0.0010

Parasite clearance in 24 h—no. (%; 95% CI)

146 (84.9, 78.6–89.9)

62 (53.5; 44.0–62.8)

31.4 (20.9–42.0)

 < 0.0001

Recurrence free by day 28—no. (%; 95% CI)

172 (100, 97.9–100)

116 (100, 96.9–100)

0

1.000

Recurrence free by day 42—no. (%; 95% CI)

172 (100, 97.9–100)

116 (100, 96.9–100)

0

1.000

Recurrence free by day 56—no. (%; 95% CI)

172 (100, 97.9–100)

116 (100, 96.9–100)

0

1.000

Recurrence free by day 70—no. (%; 95% CI)

166 (96.5, 92.6–98.7)

115 (99.1, 95.3–100.0)

−2.6 (−5.8 to 0.6)

0.2481

Recurrence free by day 98—no. (%; 95% CI)

163 (94.8, 90.3–97.6)

114 (98.3, 93.9–99.8)

−3.5 (−7.6 to 0.6)

0.2091

Recurrence free by day 182—no. (%; 95% CI)

160 (93.0, 88.1–96.3)

112 (96.6, 91.4–99.1)

−3.5 (−8.6 to 1.5)

0.2946

Recurrence free by day 365—no. (%; 95% CI)

152 (88.4, 82.6–92.8)

108 (93.1, 86.9–97.0)

−4.7 (−11.4 to 1.9)

0.2257

  1. 95% CI 95% confidence interval
  2. *ANPQ3 denotes artemisinin-naphthoquine plus primaquine for 3 days; CQPQ14 denotes chloroquine plus primaquine for 14 days