Prior treatments and COVID therapy
Among patients who died, 33.4% were on ACE inhibitors or angiotensin II receptor blockers, 27% were on anticoagulants, and 23.4% were on steroids (the equivalent of at least 10 mg of prednisone per day) at the time of COVID-19 diagnosis.
Among recovered patients, 20.7% were on ACE inhibitors or angiotensin II receptor blockers, 18.3% were on anticoagulants, and 14.2% were on steroids at the time of COVID-19 diagnosis.
“When we look at cancer therapy in the last 3 months, we can see that, regardless of outcome, the majority of patients had either not been treated or were on first-line therapy at the time of their COVID-19 diagnosis,” Dr. Horn noted.
Among patients who died, 46.8% had received chemotherapy, 22% had received immunotherapy, 12.8% had received targeted therapy, and 9.2% had received radiotherapy.
Among recovered patients, 33.7% had received chemotherapy, 26.6% had received immunotherapy, 19.5% had received targeted therapy, and 14.2% had received radiotherapy.
COVID-19–directed treatments included anticoagulation, antibiotics, antivirals, antifungals, steroids, interleukin-6 inhibitors, and hydroxychloroquine. Use of these therapies was similar among patients who recovered and patients who died.
Factors associated with death
In all, 79.4% of deaths were attributed to COVID-19, 10.6% were attributed to cancer, 8.5% were attributed to cancer and COVID-19, and 1.4% of deaths had an unknown cause.
In a univariate analysis, baseline characteristics associated with an increased risk of death were age of 65 years or older (P = .0033), one or more comorbidity (P = .0351), and ECOG performance status of 1 (P < .0001). Therapies associated with an increased risk of death in a univariate analysis included steroids (P = .0186), anticoagulation (P = .0562), and either chemotherapy alone or chemotherapy plus immunotherapy (P = .0256).
In a multivariate analysis, age over 65 years (P = .018), ECOG performance status of 1 (P < .001), prior use of steroids (P = .052), and receipt of chemotherapy alone or in combination with immunotherapy (P = .025) were all associated with an increased risk of death.
“There is no impact of gender [sex], body mass index, smoking status, stage, or type of cancer on risk of death,” Dr. Horn said. “Therapy administered to treat COVID-19 is not significantly associated with outcome.”
“The impact of COVID-19 infection on cancer management and outcomes must be evaluated,” she added. “Data collection is ongoing, with additional analysis and studies planned to look at patient and provider perception of COVID-19 and the impact it has had on cancer care.”
Strengths and limitations
There are several limitations to findings from the TERAVOLT registry, according to invited discussant Giuseppe Curigliano, MD, PhD, of the University of Milan.
He said the results are limited by the differences in triage decisions between European and other centers, the fact that most patients in TERAVOLT were hospitalized, the high proportion of patients with stage IV non–small cell lung cancer, and methods of data collection and analysis.
“There is no real-time data capture, no auditing, no standardized outcome definitions, and CRFs [case report forms] had a lot of limitations,” Dr. Curigliano said. “We have multiple biases, including selection bias, recall bias, confounding by indication, and changes in practice or disease evolution.”
Dr. Curigliano noted, however, that TERAVOLT is the largest real-world dataset of patients with COVID-19 and thoracic malignancies.
Furthermore, results from TERAVOLT correspond to results from the CCC-19 registry. Data from both registries suggest that older age, the presence of comorbidities, higher ECOG performances status, and chemotherapy alone or in combination with other therapies are associated with increased mortality among patients with cancer and COVID-19.
The TERAVOLT registry is funded, in part, by the International Association for the Study of Lung Cancer. Dr. Horn disclosed relationships with Amgen, AstraZeneca, Bayer, Boehringer Ingelheim, and other pharmaceutical companies. Dr. Curigliano disclosed relationships with AstraZeneca, Boehringer Ingelheim, Ellipses Pharma, and other pharmaceutical companies.
SOURCE: Horn L et al. ASCO 2020, Abstract LBA111.