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GHTC is spotlighting women scientists at the forefront of innovation, driving cutting-edge technologies that could transform the future of global health. 

February 5, 2026 by Hannah Sachs-Wetstone

Women are steadily reshaping the landscape of global health research. In 2022, they made up 41 percent of researchers worldwide, representing considerable progress toward closing the gender gap in science. Yet women remain underrepresented in many scientific fields and in senior roles, are published and cited less frequently than men, and file far fewer patent applications. 

Despite these systemic barriers, women researchers are having an outsized impact on global policy and progress. Research led by women is more likely to address topics aligned with the Sustainable Development Goals, and publications with women authors are more frequently cited in policy documents.  

Expanding women’s participation and leadership in science is not just a matter of equity, it is essential to ensuring research priorities reflect women’s lived experiences. Although women spend more of their lives in poor health than men, only 1 percent of global health research and development funding targets female-specific conditions beyond cancer. 

Even as gaps persist, women scientists are already at the forefront of innovation, driving cutting-edge technologies that could transform the future of global health. 

Advancing promising HIV vaccine strategies 

Developing an HIV vaccine capable of preventing infection has long challenged researchers due to the virus’s extraordinary ability to mutate and evade the immune system. Still, many experts believe such a vaccine will be essential to ending the global pandemic.

A Phase 1 trial, launched in August of last year, is evaluating an investigational HIV vaccine candidate designed to induce an immune response scientists believe could effectively target vulnerable parts of HIV-infected cells. Three distinguished female principal investigators—Dr. Tariro Makadzange of the Mutala Trust, Dr. Theodorah Rirhandzu Ndzhukule of the Desmond Tutu Health Foundation, and Dr. Limakatso Lebina of the Africa Health Research Institute—are overseeing the study across clinical trial sites in Harare, Zimbabwe; Cape Town, South Africa; and Durban, South Africa, respectively.  

Another Phase 1 trial, launched just last month, is testing a different novel approach. Researchers are evaluating whether highly specialized vaccine immunogens, delivered in a specific sequence, can train the immune system to produce broadly neutralizing antibodies against HIV, widely considered one of the keys to achieving broad protection against the virus. The trial is led by Dr. Linda-Gail Bekker, CEO of the Desmond Tutu Health Foundation and a leading HIV clinician-scientist. 

These vaccines have the potential to transform the lives of women and girls, who bear a disproportionate burden of HIV and AIDS, particularly in sub-Saharan Africa. The leadership of these scientists underscores how women researchers are driving forward breakthroughs that address urgent global health needs. 

Trialing promising TB vaccine candidates 

New tuberculosis (TB) vaccine candidates also hold promise for reshaping global TB efforts, particularly as rising drug resistance makes the disease harder to fight. The only currently approved TB vaccine is more than 100 years old and is effective at preventing some forms of TB in infants but offers limited protection against pulmonary TB in adults.  

One next-generation vaccine candidate, MTBVAC, was co-designed by Dr. Brigitte Gicquel of the Institut Pasteur, who is a pioneer in TB research. MTBVAC is the only live-attenuated candidate in the pipeline, meaning it contains a weakened form of the bacteria that causes TB, and aims to offer more effective, longer-lasting protection for newborns while also preventing TB disease in adolescents and adults, for whom no effective vaccine exists.

In a Phase 1a/2b trial published last year, MTBVAC was found to be safe and capable of generating immune responses comparable to or stronger than the current TB vaccine. The study was led by Dr. Angelique Luabeya of the South African Tuberculosis Vaccine Initiative, who has considerable experience leading novel TB and COVID-19 vaccine trials. MTBVAC is now being evaluated in a Phase 2 trial in people living with HIV, co-chaired by the aforementioned Dr. Limakatso Lebina. 

Another leading vaccine candidate, M72/AS01E, is currently undergoing a large Phase 3 trial to determine whether it can protect adolescents and adults from pulmonary TB. Dr. Lee Fairlie of Wits RHI at the University of the Witwatersrand, an infectious disease expert with extensive experience leading major clinical studies, is serving as national principal investigator for the trial in South Africa. 

These vaccine candidates could dramatically alter the trajectory of the global TB epidemic, reflecting the critical contributions of women researchers in advancing solutions to one of the world’s oldest and deadliest infectious diseases. 

Driving forward antimalarial drugs for a long-excluded group 

Last fall, a global consortium launched the first-ever Phase 2 adaptive platform trial evaluating the efficacy and safety of antimalarial drugs during the first trimester of pregnancy. This landmark study addresses a long-standing gap in safe and effective evidence-based treatment options for pregnant women at risk of malaria. Pregnant women, particularly those in early pregnancy, have historically been excluded from clinical trials, leaving major unanswered questions about how best to treat malaria and other conditions in this high-risk group.  

Among the study’s co-principal investigators are Dr. Myriam El Gaaloul from the Medicines for Malaria Venture, Dr. Stephanie Dellicour from the Liverpool School of Tropical Medicine, and Dr. Hellen Barsosio of the Centre for Global Health Research at the Kenya Medical Research Institute, who bring deep expertise in clinical trials, malaria, and maternal and newborn health. 

This trial has the potential to not only reshape care for pregnant women at risk of malaria but also set a powerful precedent for more inclusive research. It illustrates how greater gender diversity in research leadership can help ensure studies prioritize and better reflect the needs of the people they aim to serve. 

Across the global health innovation pipeline, women scientists are driving transformative progress. Accelerating gender diversity across research teams, investing in early-career women researchers, and strengthening pathways to leadership will advance gender equity while ensuring that scientific breakthroughs are more inclusive, accessible, and reflective of the needs of all people. 

About the author

Hannah Sachs-WetstoneGHTC

Hannah supports advocacy and communications activities and member coordination for GHTC. Her role includes developing and disseminating digital communications, tracking member and policy news, engaging coalition members, and organizing meetings and events.Prior to joining GHTC,...read more about this author