The editorialists recommended against both nephrectomy for metastatic renal cancer and adjuvant therapy after orchidectomy for stage 1 germ cell tumors for similar reasons, and also because there’s minimal evidence of benefit.
Dr. Powles and Dr. Gillessen Sommer suggested considering a break from immune checkpoint inhibitors (ICIs) and oral vascular endothelial growth factors (VEGFs) for renal cancer patients who have been on them a year or two. It’s something that would be considered even under normal circumstances, Dr. Reichert explained, but it’s more urgent now to keep people out of the hospital. VEGFs should also be prioritized over ICIs; they have similar efficacy in renal cancer, but VEGFs are a pill.
They also called for oncologists to favor conventional-dose treatments for germ cell tumors over high-dose treatments, meaning bone marrow transplants or high-intensity chemotherapy. Amid a pandemic, the preference is for options “that don’t require a hospital bed,” Dr. Reichert said.
Urothelial cancer
Dr. Powles and Dr. Gillessen Sommer suggested not starting or continuing second-line chemotherapies in urothelial cancer patients refractory to first-line platinum-based therapies. The chance they will respond to second-line options is low, perhaps around 10%. That might have been enough before the pandemic, but it’s less justified amid resource shortages and the risk of COVID-19 in the infusion suite, Dr. Reichert explained.
Along the same lines, they also suggested reconsidering perioperative chemotherapy for urothelial cancer, and, if it’s still a go, recommended against going past three cycles, as the benefits in both scenarios are likely marginal. However, if COVID-19 cancels surgeries, neoadjuvant therapy might be the right – and only – call, according to the editorialists.
They recommended prioritizing ICIs over chemotherapy in patients with metastatic urothelial cancer who are positive for programmed death-ligand 1 (PD-L1). PD-L1–positive patients have a good chance of responding, and ICIs don’t suppress the immune system.
“Chemotherapy still has a slightly higher percent response, but right now, this is a better choice for” PD-L1-positive patients, Dr. Reichert said.
Dr. Gillessen Sommer and Dr. Powles disclosed ties to Bristol-Myers Squibb, Roche, and numerous other companies. Dr. Reichert has no relevant disclosures.
SOURCE: Gillessen Sommer S, Powles T. “Advice regarding systemic therapy in patients with urological cancers during the COVID-19 pandemic.” Eur Urol. https://els-jbs-prod-cdn.jbs.elsevierhealth.com/pb/assets/raw/Health%20Advance/journals/eururo/EURUROL-D-20-00382-1585928967060.pdf.