PEDIATRICS Vol. 112 No. 2 August 2003, pp. 491
EFFECTIVENESS OF COL-1492, A NONOXYNOL-9 VAGINAL GEL, ON HIV-1 TRANSMISSION IN FEMALE SEX WORKERS: A RANDOMISED, CONTROLLED TRIAL
Joseph A. Church, MD
Los Angeles, CA
Van Damme L, Ramjee G, Alary M, et al. Lancet. 2002;360:962964
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Purpose of the Study.
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Nonoxynol-9, marketed as a spermicidal contraceptive, has in
vitro anti-human immunodeficiency virus (HIV) activity. This
study was designed to assess the effectiveness of COL-1492,
a nonoxynol-9 vaginal gel, in the prevention of HIV infection
in women with a high risk of HIV exposure.
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Methods.
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This was a randomized, placebo-controlled, fully masked phase
II/III trial with COL-1492. Eight hundred ninety-two female
sex workers in 4 developing countries were assigned to receive
the nonoxynol-9 gel (449 women) or a placebo gel (443 women).
The primary endpoint was incident HIV infection; secondary endpoints
included
Neisseria gonorrhoeae and
Chlamydia trachomatis infections.
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Results.
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Thirty-two percent of the women reported using >3 applicators
per working day. In these women, the risk of HIV infection in
nonoxynol-9 users was almost twice that in placebo users. In
the 68% of women who used the applicators less frequently, there
was no difference in HIV infection incidence. There were no
significant effects on nonoxynol-9 on
N gonorrhoeae or
C trachomatis infections.
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Conclusions.
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COL-1492, a nonoxynol-9 containing vaginal gel does not protect
high-risk women from HIV infection. Further, multiple applications
of nonoxynol-9 appear to enhance the risk of HIV infection likely
by causing local toxic effects on the vaginal mucosa.
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Reviewers Comments.
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This report is consistent with other trials that demonstrated
that nonoxynol-9 was not effective in preventing sexually transmitted
diseases including HIV and that it might actually increase the
risk for HIV transmission. Because of these findings, the World
Health Organization has concluded that nonoxynol-9 should not
be used or promoted for the prevention of HIV or sexually acquired
infections. For sexually active adolescents, only abstinence
and condoms should be recommended for the prevention of HIV
or other sexually acquired infections.
PEDIATRICS (ISSN 1098-4275). ©2003 by the American Academy of Pediatrics

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