# \[e-drug\] Nevirapine, MTCT and Africa (2)

**URL:** https://talk.edrugplus.org/t/e-drug-nevirapine-mtct-and-africa-2/19121
**Category:** e-drug
**Created:** [March 18, 2004, 3:50pm UTC](https://talk.edrugplus.org/t/e-drug-nevirapine-mtct-and-africa-2/19121 "2004-03-18T15:50:53Z")
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### Author: ![E-drug](https://avatars.discourse-cdn.com/v4/letter/e/ecd19e/32.png) [@E-drug](https://talk.edrugplus.org/u/E-drug)
#### Post date: [March 18, 2004, 3:50pm UTC](https://talk.edrugplus.org/t/e-drug-nevirapine-mtct-and-africa-2/19121/1 "2004-03-18T15:50:53Z")

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E-DRUG: Nevirapine, MTCT and Africa (2)  
--------------------------------------------  
[WHO 3x5 website has a report from a recent expert meeting. "The most  
efficacious regimen among those recommended for prevention of MTCT for women  
with HIV who do not need ARV treatment is zidovudine (ZDV) from 28 weeks  
with single dose nevirapine (NVP) at onset of labour for the mother and  
single dose NVP plus one week ZDV for the infant." See  
[http://www.who.int/3by5/arv\_pmtct/en/](http://www.who.int/3by5/arv_pmtct/en/). WB]

Antiretroviral drugs and the prevention of mother-to-child transmission of  
HIV infection in resource-limited settings

Expert consultation, Geneva, 5-6 February 2004

A summary of main points from the meeting

Background

WHO convened a technical consultation in Geneva on 5 and 6 February 2004  
with scientists, policy-makers, programme managers and community  
representatives to review the experience with programmes and recent evidence  
on safety and efficacy of different antiretroviral (ARV) drug regimens for  
the prevention of mother-to-child transmission (MTCT) of HIV. This  
information was reviewed in the context of rapid expansion of ARV treatment  
in resource-limited settings using simplified and standardized drug  
regimens. Prior to the consultation a draft set of recommendations had been  
issued for public comment, which is now under revision in the light of  
comments received and the recommendations made at the technical  
consultation.

Key recommendations

Women who need ARV treatment for their own health should receive it,  
following revised ARV treatment guidelines recently posted by WHO. The use  
of ARV treatment when indicated during pregnancy will improve the health of  
the mother and substantially decrease the risk of transmission of the HIV  
virus to the infant.  
Women who do not need treatment, or do not have access to treatment, should  
be offered ARV prophylaxis to prevent MTCT using one of a number of ARV drug  
regimens known to be safe and effective.  
The most efficacious regimen among those recommended for prevention of MTCT  
for women with HIV who do not need ARV treatment is zidovudine (ZDV) from 28  
weeks with single dose nevirapine (NVP) at onset of labour for the mother  
and single dose NVP plus one week ZDV for the infant.  
Alternative but less efficacious regimens include one based on ZDV alone  
(from 28 weeks of pregnancy and through labour for the mother and for one  
week for the infant), one using the combination of ZDV plus lamivudine (3TC)  
(from 36 weeks of pregnancy, through labour and one week postpartum for the  
mother, and for one week for the infant), and a regimen comprising a single  
dose of NVP to the mother and to the infant (which does not need to be  
initiated until labour).  
The selection of the ARV drug regimen should be made at national level,  
based on issues of efficacy, safety, drug resistance, feasibility, and  
acceptability.

The consultation participants made these recommendations based on a thorough  
review of the current evidence and careful consideration of issues of  
efficacy, safety and practicality.

New data reviewed

In particular, the consultation participants reviewed available scientific  
evidence on the emergence of resistant HIV strains associated with use of  
some ARV drugs for prophylaxis, which has raised concerns about future ARV  
treatment options for the mother or, if infected, the infant. They felt,  
however, that the evidence regarding the degree of impact of such resistance  
is not as yet conclusive. New data from the observational study conducted by  
Lallemant et al. in Thailand suggest that the regimen of ZDV and single dose  
of NVP could dampen the mother�s response to ARV treatment initiated in the  
first months after delivery. These data were taken into account in  
developing the above recommendations. However, the consultation participants  
felt that the implications of these preliminary data on subsequent treatment  
options for women were unclear and require further study. They noted that  
more definitive clinical trials assessing this issue are under way. Until  
further evidence is available it was the group�s expert opinion that the ZDV  
plus single-dose NVP regimen can be recommended for the prevention of MTCT  
because of its considerable efficacy in reducing MTCT (by 80%, from the  
transmission rates observed with short-course ZDV alone, down to an absolute  
level under 2%), its simplicity and its safety profile for mother and  
infant. In view of these results, the government of Thailand is implementing  
this regimen nationwide for the prevention of MTCT, alongside its efforts to  
scale up ARV treatment for all in need.

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