COVD-20. COVID-19 INFECTION DURING CHEMOTHERAPY FOR MALIGNANT GLIOMA: OUTCOMES AMONG 3 PATIENTS

BACKGROUND: Chemotherapy may increase risk of SARS-COV-2 infection and COVID-19 severity. METHODS: A patient developed COVID-19 during chemotherapy for glioma. We retrospectively identified others diagnosed with COVID-19 during temozolomide or lomustine for glioma. RESULTS: (1) A 64 year-old woman (index patient) with anaplastic oligodendroglioma received PCV 22 months previously. Baseline White Blood Cell (WBC) count was 4.2 and Absolute Neutrophil Count (ANC) was 2.7 K/uL. KPS was 90 without comorbidities. For recurrence she initiated temozolomide but developed fever on cycle 1 day 2. SARS-COV-2 PCR was positive. Further temozolomide was held. She is recovering as an outpatient. (2) A 27 year-old man with anaplastic astrocytoma received concurrent RT/temozolomide then 1 cycle of adjuvant temozolomide. Baseline WBC was 8.3, ANC 5.2, and KPS 90. Obesity, asthma, and pre-diabetes were comorbidities. Hyposmia/hypogeusia and low-grade fever began, in retrospect, during concurrent RT/temozolomide. PCR for SARS-COV-2 was negative 2 months after symptom onset; serology detected both IgG and IgM when WBC was 6.6 and ANC 4.0. Cycle 2 of adjuvant temozolomide was held until fever resolved (spontaneously); hyposmia/hypogeusia persist. (3) A 53 year-old man with glioblastoma previously received RT/temozolomide, then lomustine and bevacizumab for progression. WBC was 5.1, ANC 4.0, and KPS 60. He was obese. Fever, chills, and dyspnea developed on lomustine cycle 2 day 38. SARS-COV-2 PCR was positive. He was hospitalized and chemotherapy held; symptoms resolved 12 days after onset, but PCR continued to show detectable virus 32 days later. PCR became negative after 50 days total, and treatment resumed uneventfully. DISCUSSION: All 3 patients recovered from SARS-COV-2 infection despite active temozolomide or lomustine chemotherapy. Normal ANC, high KPS, and early detection may have contributed to limited symptom severity and duration, despite obesity and other comorbidities in 2 cases. Detection changed management by delaying additional cycles of immunosuppressive chemotherapy until recovery.