ANRS 0288s - VIROPREG

Pregnancy and viral infections: impact on pregnant women and children. French prospective cohort study.

Last updated on 11 February 2026

Main points

  • The purpose of the ANRS Viropreg cohort is to study chronic viral infections and (re)emerging viral infections and the risks associated with exposure to these viruses in pregnant women and their foetuses.
  • Initially, the cohort will focus on HIV-1/HIV-2 infection, chronic viral hepatitis and arboviruses in order to assess the risk of mother-to-foetus transmission and the impact of infection on both the course and outcome of pregnancy and on the short- and long-term health of the unborn child. Other more specific issues related to the viral infection in question will also be studied, such as difficulties in accessing care or remaining in the healthcare system, and the impact of social and individual characteristics on the occurrence of viral infections and their consequences.
  • Subsequently, depending on the various viral emergences/re-emergences whose impact (of the infection itself and/or its treatment) on (i) the health of the pregnant woman, (ii) the course of pregnancy, and (iii) the health of the unborn child, are still poorly or inadequately characterised (dengue, chikungunya, HTLV-1, etc.), the protocol will be expanded through amendments, initially to include infection with the dengue virus and the Oropouche virus.

Type of study

Prospective, multicentre, national cohort study with hospital recruitment and different modules corresponding to the viral infections studied.

Study goals

HIV-1/HIV-2 Cohort

Assess the impact of exposure to HIV1/HIV2 and antiretroviral (ARV) treatment received during pregnancy and the neonatal period on gross and fine motor skills and socioemotional development in the medium term (at age 4) of children born to mothers living with HIV1/HIV2.

Hepatitis B Module Cohort

Estimate the rate of mother-to-child transmission of HBV at 9 months of age in children born to mothers infected with HBV.

Hepatitis C Module Cohort

Estimate the rate of mother-to-child transmission of HCV between 18 and 24 months of age in children born to mothers infected with HCV.

Arbovirus Module Cohort

Estimate, by arbovirus type, the prevalence of adverse pregnancy outcomes in pregnant women with biologically confirmed symptomatic arbovirus infection.

Co-investigators
Pr Jeanne SIBIUDE & Pr Pierre Frange

Pathologies
chronic viral infections (HIV/HBV/HCV), arbovirus infections and emerging viral infections (dengue, Oropouche)

Number of participants
2 380 mother-child couples

Duration
– Estimated start date: 9 March 2026
– Estimated end date of study: 8 March 2036

Promotion
Inserm – ANRS MIE

Teams
– Methodology and Management Centre at Bichat Claude Bernard Hospital
– Pharmacology Laboratory at Bichat-Claude Bernard Hospital, head: Dr Gilles PEYTAVIN
– Virology Laboratory at Pitié Salpêtrière Hospital, head: Dr Ève TODESCO

You are participating or have participated in this study

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