Sylvester Comprehensive Cancer Center researchers Dr. Sophia George and Dr. Matthew Schlumbrecht are leading an ambitious study focused on ovarian cancer treatment for women of African descent.
Their work, based at the University of Miami Miller School of Medicine, aims to address a critical gap in cancer research: the underrepresentation of Black women in clinical trials, specifically for the drug niraparib.
George, a molecular geneticist, and Schlumbrecht, a gynecologic oncologist, have expanded their research beyond the U.S. and the Caribbean to Africa. In July, they launched the study in Nigeria, giving them access to data from a population often overlooked in cancer research. According to the University of Miami, their goal is to understand how women of African ancestry metabolize drugs like niraparib, a PARP inhibitor (a type of targeted therapy according to the MD Anderson Cancer Center) that has transformed treatment for certain ovarian cancer patients.
While niraparib has proven effective, Black women made up only 1.6% of participants in the drug’s pivotal PRIMA study. George and Schlumbrecht’s new study is specifically designed to address this gap by enrolling women of African descent.
“We know from other drugs that how women of African ancestry metabolize drugs can differ from those of European ancestry,” Schlumbrecht explained in a news release. “The data we gain will allow us to confirm appropriate dosing, counsel patients on side effects, lobby for government coverage, and ultimately expand access to this life-saving treatment.”
The study’s significance has already drawn national attention. The White House highlighted it as part of President Biden’s Cancer Moonshot initiative, which seeks to cut the cancer death rate by at least 50% over the next 25 years.
“This recognition underscores the importance of our work,” said George. “We are increasing our ability to successfully identify and treat women of all backgrounds with ovarian cancer.”
George and Schlumbrecht said they plan to enroll patients from the U.S., the Caribbean, and Nigeria over the next three years, tracking their progress through ancillary studies on tumor DNA biomarkers and patient quality of life. The researchers will also explore homologous recombination deficiency profiles to assess whether the drug works as expected at the molecular level.
A key part of the study involves understanding the variability among Black women.
“Not all Black women are the same,” Schlumbrecht noted. “By including participants from the U.S., Nigeria, and the Bahamas, we are gaining insights that will inform clinical practice globally.”
Their work in Nigeria is rooted in a long-standing collaboration with Nigerian medical professionals. Schlumbrecht has made five trips to the country, mentoring local researchers, teaching surgical techniques, and co-leading tumor boards with Nigerian oncologists. These partnerships have been instrumental in establishing the study at the Ahmadu Bello University Teaching Hospital in Zaria.
“The clinical trial is truly a team effort,” said Schlumbrecht. “This is an example of how we can eliminate ovarian cancer disparities when we work together across borders.”
As the study progresses, the researchers said they hope to provide critical data on drug safety and effectiveness and advance global efforts to reduce health inequities and improve outcomes for women of African descent.