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New treatment could tackle preventable causes of death for newborns in sub-Saharan Africa

May 15, 2012

Clinical trials are urgently needed to test a new treatment that could jointly tackle leading causes of death for babies in sub-Saharan Africa, according to researchers from the London School of Hygiene & Tropical Medicine.

A study published in the Journal of the American Medical Association today suggests that a considerable number of pregnant women accessing antenatal care in the region have malaria and sexually transmitted/reproductive tract infections (STIs/RTIs).

An estimated 25 million pregnancies are at risk of malaria each year in sub-Saharan Africa. The study shows that nearly 4 of every 10 women at health facilities have a malaria infection. An even higher number of women, if added together, are infected with the STIs/RTIs syphilis, gonorrhoea, chlamydia, trichomononiasis and bacterial vaginosis.

There are 880,000 stillbirths and 1.2 million newborn deaths each year in sub-Saharan Africa, many of which are linked to maternal infection. For unborn babies, malaria and STIs/RTIs increase the risk of miscarriage, stillbirth, and preterm delivery; they also contribute to low birth-weight, the leading cause of neonatal mortality.

Researchers from the London School of Hygiene & Tropical Medicine are now conducting clinical trials of combined anti-malarial and antibiotic treatment that could prevent and treat malaria and STIs/RTIs at the same time.

Lead author Matthew Chico, an epidemiologist and Research Fellow at the London School of Hygiene & Tropical Medicine, said: "We reviewed evidence over a twenty year period to calculate prevalence estimates of STIs/RTIs and malaria. This makes it clear that a combined treatment could save a great many lives.

"We are now conducting trials of azithromycin-based combination treatment to give all pregnant women preventative medication that will clear placental malaria infection, protect against re-infection in between antenatal visits, and cure syphilis, gonorrhoea, chlamydia and, to a lesser extent, trichomononiasis, the most common STI in the world. If given in early pregnancy, combined treatment may also reduce bacterial vaginosis, which affects half of all pregnant women in the region."

The researchers also hope that combined treatment could overcome the problem of wide-spread anti-malarial drug resistance with the current treatment given to pregnant women.

"The current WHO recommended treatment to prevent malaria in pregnancy is failing due to drug resistance," Matthew Chico said. "By switching to azithromycin-based combination treatment to reduce the dual burden of malaria and STIs/RTIs in pregnancy, we could have a transformative effect on maternal, fetal and neonatal health."
-end-
For more information and to request interviews, please contact the London School of Hygiene & Tropical Medicine press office on 020 7927 2802 or email katie.steels@lshtm.ac.uk

Notes to Editors:

R. Matthew Chico, Philippe Mayaud, Cono Ariti, David Mabey, Carine Ronsmans and Daniel Chandramohan, Prevalence of malaria and sexually transmitted and reproductive tract infections in pregnancy in sub-Saharan Africa: A systematic review. DOI 10.1001/jama.307.19.2079. Paper available via JAMA Network Media Relations department at mediarelations@jama-archives.org.

About the London School of Hygiene & Tropical Medicine:

The London School of Hygiene & Tropical Medicine is a world-leading centre for research and postgraduate education in public and global health, with 4000 students and more than 1300 staff working in over 100 countries. The School is one of the highest-rated research institutions in the UK, and was recently cited as one of the world's top universities for collaborative research. The School's mission is to improve health and health equity in the UK and worldwide; working in partnership to achieve excellence in public and global health research, education and translation of knowledge into policy and practice. www.lshtm.ac.uk

London School of Hygiene & Tropical Medicine

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