Repurposing Atovaquone for the Treatment of Platinum-Resistant Ovarian Cancer

This phase II trial test tests how well repurposing atovaquone works in treating patients with platinum-resistant ovarian cancer. Atovaquone is used for the treatment or prevention of certain infections. Atovaquone is in a class of medications called antiprotozoal agents. It works by stopping the growth of certain types of protozoa that can cause pneumonia. Giving atovaquone may be effective in treating platinum-resistant ovarian cancer and result in improved outcomes compared to standard chemotherapy regimens.

Inclusion Criteria: * Patients with platinum-resistant, high-grade serous ovarian cancer, defined as disease progression within six months of completion of their last platinum-based chemotherapy * Patients must maintain Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1 * There will be no limitations on number of prior lines of therapy * Trial is open to non-English speaking patients * Trial is open to patients referred from community practice Exclusion Criteria: * Patients who are \< 18 years old * Patients who are pregnant or breastfeeding (due to cancer of their reproductive organs, patients enrolled in the trial are unable to conceive) * Patients who are incarcerated * Patients who are unable to provide consent / lack decision-making capacity