Leveraging Veterans Health Administration Clinical and Research Resources to Accelerate Discovery and Testing in Precision Oncology

In May 2020, the US Food and Drug Administration (FDA) approved the first 2 targeted treatments for prostate cancer, specifically, the poly-(adenosine diphosphate-ribose) polymerase (PARP) inhibitors rucaparib and olaparib.^1,2 For these medications to work, the tumor must have a homologous recombination deficiency (HRD), which is a form of DNA repair deficiency. The PARP pathway is important for DNA repair, and PARP inhibition leads to “synthetic lethality” in cancer cells that already are deficient in DNA repair mechanisms.³ Now, there is evidence that patients with prostate cancer who have HRD tumors and receive PARP inhibitors live longer when compared with those who receive standard of care options.⁴ These findings offer hope for patients with prostate cancer. They also demonstrate the process and potential benefits of precision oncology efforts; namely, targeted treatments for specific tumor types in cancer patients.

This article discusses the challenges and opportunities of precision oncology for US Department of Veterans Affairs (VA) Veterans Health Administration (VHA). First, the article will discuss working with relatively rare mutations. Second, the article will examine how the trials of olaparib and rucaparib illuminate the VHA contribution to research on new therapies for patients with cancer. Finally, the article will explore the ways in which VHA is becoming a major national contributor in drug discovery and approval of precision medications.

Precision Oncology

Despite advances in screening and treatment, an estimated 600,000 people in the US will die of cancer in 2020.⁵ Meaningful advances in cancer care depend on both laboratory and clinical research. This combination, known as translational research, takes discoveries in the laboratory and applies them to patients and vice versa. Successful translational research requires many components. These include talented scientists to form hypotheses and perform the work; money for supplies and equipment; platforms for timely dissemination of knowledge; well-trained clinicians to treat patients and lead research teams; and patients to participate in clinical trials. In precision oncology, the ability to find patients for the trials can be daunting, particularly in cases where the frequency of the mutation of interest is low.