02/07/2017
The effects of quinine and chloroquine antimalarial
treatments in the first trimester of pregnancy.
McGready R, et al. Trans R Soc Trop Med Hyg. 2002
Mar-Apr.
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Abstract
Quinine (n = 246) was used to treat uncomplicated
Plasmodium falciparum and chloroquine (n = 130) was
used to treat P. vivax, in a total of 376 episodes of
malaria in the first trimester of pregnancy, in 300 Karen
women (Thailand, 1995-2000). Parasites were still
present on day 6 or 7 in 4.7% (11/234) of episodes
treated with quinine. The overall 28 day parasite
reappearance rate following quinine was 28.7%
(60/209) for primary treatments and 44% (11/25) for
re-treatments. Quinine treatment resulted in a high rate
of gametocyte carriage: person-gametocyte-weeks =
42.5 (95% CI 27.8-62.1) per 1000 woman-weeks. For
P. vivax, the reappearance rate for all episodes by day
28 was 4.5% (5/111). Significantly more women
complained of tinnitus following quinine treatment
compared to on admission: 64.5% (78/121) vs 31.6%
(59/187), P < 0.001. Using survival analysis, the
community rate of spontaneous abortion in women who
never had malaria in pregnancy, 17.8% (16.5-19.0), did
not differ significantly from rates in women treated with
quinine: 22.9% (95% CI 15.5-30.3), or chloroquine:
18.3% (95% CI 9.3-27.3), P = 0.42. Pregnancies
exposed to quinine or chloroquine and carried to term
did not have increased rates of congenital abnormality,
stillbirth or low birthweight. These results suggest that
therapeutic doses of quinine and chloroquine are safe
to use in the first trimester of pregnancy.
PMID: 12055810 [PubMed - indexed for MEDLINE]