Research Roundup: New breakthroughs in HIV and TB-detection research and 17 brave volunteers

From the development of new drugs for malaria and tuberculosis to the mapping of debilitating but preventable diseases, research and development (R&D) can be a catalytic force for scaling up impact. Many of USAID’s [US Agency for International Development] global health successes in preventing child and maternal deaths, controlling the HIV and AIDS epidemic, and combating infectious diseases can be partially attributed to breakthrough research and development that altered the course of an illness or accelerated diagnostics and treatment through breakthrough innovation and ingenuity. This year’s report to Congress coincides with our new five-year strategy, which focuses on three interrelated goals. Our first goal is to accelerate the development, introduction, scale-up, and sustained use of new technologies, health tools, and approaches; secondly, we want to influence the adoption of priority life-saving health and development interventions; and finally, we want to strengthen the capacity of people, systems, and partnerships to conduct research and utilize results to improve health outcomes.Photo caption and credits: A lab technician in Rwanda. Riccardo Gangale for USAID/ Courtesy of Photoshare  Although R&D can take years to come to fruition, when it does, it can save lives and be a total game changer. Take malaria for instance. One of the most notable areas of R&D investments for USAID is the development of new vaccines, medicines, and insecticides for malaria prevention and control, as well as research to improve malaria programs. Many lives have been saved since the launch of the U.S. President’s Malaria Initiative (PMI) in 2005, but continued success depends on strategic R&D investments.Last year, the sustained efforts of many partners paid off and led to the development of three new classes of malaria drugs, including the drug Tafenoquine which, if approved, could be the first new medicine to treat relapsing malaria in more than 60 years. In Cambodia, research on the safety and tolerability of single, low-dose Primaquine, a drug used for reducing malaria transmission, has been recommended for adoption in areas moving toward malaria elimination.Another health challenge with the potential for high returns on investment in terms of R&D is multidrug-resistant tuberculosis (MDR-TB). USAID knows from experience that this is a very complex and expensive disease to treat because of its severity and long-term treatment plan, which is why the agency has been supporting several clinical studies evaluating the efficacy of shorter drug regimens.For treatment that can last for as long as two years, medicine adherence has been a huge challenge in combating MDR-TB. Shorter and simpler to administer regimens may help increase adherence and acceptability, while decreasing side-effects and transmission. Interim results from STREAM Stage-1, one of the USAID-supported studies of shorter MDR-TB regimens, have potential to inform global guidelines and improve the lives of millions of people.Along with high-quality research, USAID has continued to invest in ground-breaking tools and innovations that have been deployed in countries around the world. These cost-effective tools have not only saved lives, but millions of taxpayers’ dollars. They have also contributed to strengthening our national security by enabling countries to mitigate impact and contain the spread of infectious diseases.During the 2015-2016 Zika outbreak in Central and Latin America, for instance, USAID supported 26 innovations to combat Zika and future threats through the Combating Zika and Future Threats Grand Challenge. Innovations range from mosquitoes infected with Wolbachia, a naturally-occurring bacteria that prevents the transmission of diseases to humans, to a disease surveillance digital platform that could protect vulnerable communities from becoming hot spots not only for Zika but also for malaria, dengue, chikungunya, and other infectious diseases, including currently known and unknown threats.School students in Paris, Colombia participate in growing and releasing their own Wolbachia mosquitoes as part of a science project. Photo Credit: World Mosquito Program Colombia.The Grand Challenges enable us to adopt an open-source model that empowers more people from all walks of life to offer solutions to global health problems. Research and partnerships spur innovation, which in turn harnesses the ingenuity and expertise of an increasingly diverse global development community. USAID facilitates this process and opens the door for new ideas. Supporting innovative research approaches in disease mapping is another way for USAID to maximize global health impact. Knowing where diseases are most prevalent can shed light on their root causes, strengthen programs and more effectively target interventions.Lymphatic filariasis or LF, for instance, is a parasitic disease spread by mosquitoes and one of seven neglected tropical diseases that USAID prioritizes. Last year, USAID supported the expanded roll-out of a new survey protocol to assess the LF in low prevalence settings. In Ethiopia, the study mapped the disease in 45 districts, and results showed that only three of them warranted treatment. This finding saved millions of dollars that may have otherwise been spent to provide treatment in areas where the disease was not endemic. The World Health Organization has endorsed the new survey protocol to be used in other areas of uncertain disease prevalence, including Vietnam and Cameroon.These handful of tools and research projects are only a small fraction of the global health R&D portfolio that USAID has supported around the world. Despite the fact that USAID investments in health R&D are often working behind the scenes, their contribution to saving and improving lives is significant. These types of strategic investments continue to change the way communities think about what is possible in disease prevention and health promotion. You can download a copy of USAID’s latest global health-related R&D report here.This blog originally appeared on USAID’s website and has been cross-posted to Breakthoughs with USAID’s permission.  

Interested in more global health innovation news? Every week GHTC scours media reports worldwide to deliver essential global health R&D news and content to your inbox. Sign-up now to receive our weekly R&D News Roundup email. In this regular feature on Breakthroughs, we highlight some of the most interesting reads in global health research from the past week. A breath test could be an alternative approach to malaria diagnostics, according to a new study conducted by Washington University in St. Louis. The study focused on malaria-infected children in Malawi and showed that they had a different set of compounds in their breath compared to healthy children. Based on these compounds, researchers were then able to diagnose malaria infection with 83 percent accuracy. There is a critical need for alternative diagnostic methods for malaria, especially as the common, rapid diagnostic blood test is becoming less effective over time. More research is needed to study this diagnostic approach across different populations affected by malaria, but researchers are hopeful about this new avenue of malaria diagnostics. Researchers at the New York University College of Dentistry in collaboration with Rheonix Inc. have modified an existing model used for rapid HIV testing to test for the Zika virus. The newly developed test uses saliva for rapid identification of the diagnostic markers of the Zika virus and is an improvement over conventional Zika diagnostic techniques that require blood and can take hours to provide results. Further, this new test allows researchers to approximate the viral load in a saliva sample, allowing them to understand the severity of Zika and the body’s response to the virus, which is useful, especially among pregnant women. Researchers are optimistic about this test because it is quick and requires little training. Following a severe outbreak of yellow fever throughout Brazil, the country launched last month the world’s largest vaccine campaign using a fractional dose of the yellow fever vaccine. The goal of the campaign is to provide a fractional dose of the vaccine—one-fifth of the regular dose—to those living in 69 municipalities in the country, which will provide up to a year of protection against the illness. Though Brazil hopes to immunize 22.3 million individuals, only about 3.95 million have been vaccinated at this point. While this is not the first time fractional dosing of yellow fever vaccines have been used during an outbreak, this large-scale campaign will provide evidence and data for researchers aiming to implement similar campaigns to advance the goal of eliminating yellow fever epidemics globally by 2026.