Collaboration with the Bill & Melinda Gates Foundation Seeks to Bring Forward a New HIV Prevention Option to Help Address the HIV Epidemic with Focus on Women in Sub-Saharan Africa Merck’s novel investigational nucleoside reverse transcriptase translocation inhibitor under evaluation for both treatment and preventionand is anticipated to begin by early 2021. More than half of new HIV infections globally occur in …
Collaboration with the Bill & Melinda Gates Foundation Seeks to Bring Forward a New HIV Prevention Option to Help Address the HIV Epidemic with Focus on Women in Sub-Saharan Africa
Merck’s novel investigational nucleoside reverse transcriptase translocation inhibitor (NRTTI) under evaluation for both treatment and preventionand is anticipated to begin by early 2021. More than half of new HIV infections globally occur in sub-Saharan Africa, with women accounting for nearly 60 percent of new infections in this region.
“Our collaboration with the Bill & Melinda Gates Foundation exemplifies our shared mission to end the global HIV epidemic through meaningful innovations in HIV prevention, including additional PrEP options,” said Dr. Roy D. Baynes, senior vice president and head of global clinical development, chief medical officer, Merck Research Laboratories. “Islatravir is a promising antiviral candidate with evidence from ongoing clinical trials to support its development as a once-monthly oral PrEP agent. Through this collaboration, we can further explore the potential of islatravir as part of our work towards the collective global public health goal of reducing the number of new HIV infections.”
“The world will not be able to end the HIV epidemic until we can effectively prevent HIV acquisition in at-risk individuals and populations,” said Dr. Emilio Emini, director of the TB & HIV program, the Bill & Melinda Gates Foundation. “This collaboration will help advance HIV science and potentially offer a new option to prevent HIV acquisition among at-risk women, both in sub-Saharan Africa and globally.”
Per the agreement between the foundation and Merck, the foundation, in its role as a funder, intends to provide grant funding to the International Clinical Research Center (ICRC) at the University of Washington Department of Global Health, which is collaborating with Merck on the IMPOWER 22 study. This grant will support ICRC’s work with experienced trial sites in sub-Saharan Africa to enroll, follow and retain the large number of women required for this research. Merck will be the trial sponsor, responsible for supplying the medicine, gaining regulatory and customs approvals, and providing operational expertise and resources for management of the trial, such as site monitoring and data reporting. Merck will be funding the IMPOWER 22 clinical trial in the United States.
“Globally, women continue to be underserved in HIV research and care. In 2019, women accounted for 48 percent of new infections, and in 2018, AIDS-related illnesses remained the leading cause of death for women during their reproductive years,” said Prof. Elizabeth Anne Bukusi, MBChB, PhD, senior principal clinical research scientist and co-director of the Research Care Training Program at the Center for Microbiology Research of The Kenya Medical Research Institute, and a trial investigator. “We will not turn the tide on HIV globally until we turn the tide on the virus in Africa, and this clinical trial seeks to help advance this effort through its focus on women, especially younger women, who remain disproportionately at risk on this continent.”
About IMPOWER Clinical Trials Program
IMPOWER 22 is a randomized, active-controlled, double-blind, multisite Phase 3 study evaluating the efficacy and safety of islatravir administered orally once-monthly as PrEP in cisgender women who are at high risk for HIV-1 infection in sub-Saharan Africa and the United States. The active comparator for this study, emtricitabine/tenofovir disoproxil fumarate (FTC/TDF), will be administered orally once daily. Approximately 4,500 cisgender women and adolescent girls, ages 16 through 45, will be randomized (stratified by site and age) in a 1:1 ratio to receive either islatravir or FTC/TDF for the duration of the study. Information on this study will be posted shortly on www.clinicaltrials.gov.
Merck also plans to conduct additional studies in HIV prevention with islatravir in once-monthly oral PrEP. These studies will include IMPOWER 24, a global Phase 3 clinical trial to evaluate islatravir as a once-monthly oral agent for PrEP at sites across the world and among other key populations impacted by the epidemic, including men who have sex with men (MSM) and transgender women.
About Islatravir (MK-8591)
Islatravir (formerly MK-8591) is Merck’s investigational nucleoside reverse transcriptase translocation inhibitor (NRTTI) currently being evaluated in clinical trials for the treatment of HIV-1 infection in combination with other antiretrovirals, as well as for pre-exposure prophylaxis (PrEP) of HIV-1 infection as a single investigational agent, across a variety of formulations. In 2012, Merck licensed islatravir (4’-ethynyl-2-fluoro-2’-deoxyadenosine or EFdA) from the Yamasa Corporation based in Choshi, Japan.
Merck’s Commitment to HIV
For more than 30 years, Merck has been committed to scientific research and discovery in HIV, and we continue to be driven by the conviction that more medical advances are still to come. Our focus is on pursuing research that addresses unmet medical needs and helps people living with HIV and their communities. We remain committed to working hand-in-hand with our partners in the global HIV community to address the complex challenges that hinder continued progress.
About the Bill & Melinda Gates Foundation
Guided by the belief that every life has equal value, the Bill & Melinda Gates Foundation works to help all people lead healthy, productive lives. In developing countries, it focuses on improving people’s health and giving them the chance to lift themselves out of hunger and extreme poverty. In the United States, it seeks to ensure that all people—especially those with the fewest resources—have access to the opportunities they need to succeed in school and life. Based in Seattle, Washington, the foundation is led by CEO Mark Suzman, under the direction of Bill and Melinda Gates and Warren Buffett.
For more than 125 years, Merck, known as MSD outside of the United States and Canada, has been inventing for life, bringing forward medicines and vaccines for many of the world’s most challenging diseases in pursuit of our mission to save and improve lives. We demonstrate our commitment to patients and population health by increasing access to health care through far-reaching policies, programs and partnerships. Today, Merck continues to be at the forefront of research to prevent and treat diseases that threaten people and animals – including cancer, infectious diseases such as HIV and Ebola, and emerging animal diseases – as we aspire to be the premier research-intensive biopharmaceutical company in the world. For more information, visit www.merck.com and connect with us on Twitter , Facebook , Instagram , YouTube and LinkedIn .
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1 PrEP is a way for people who do not have HIV, who are considered high-risk for acquiring HIV, to prevent the infection. Currently, the only available/approved dosing option is to take a pill every day. PrEP has been shown to effectively reduce the risk of HIV infection from sex when taken daily, but is less effective if it is not taken consistently. (Source: https://www.cdc.gov/hiv/risk/prep/index.html )
Sarra S. Herzog
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