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Vinblastine monotherapy induction prior to radiotherapy for patients with intracranial germinoma during the COVID-19 pandemic.

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Moleron, Rafael 
Adamski, Jennifer 
English, Martin 
Burke, GA Amos 


BACKGROUND: Patients with localized intracranial germinoma have excellent survival. Reducing treatment burden and long-term sequelae is a priority. Intensive inpatient chemotherapy (e.g., carboPEI = carboplatin/etoposide/ifosfamide) has been effectively employed to reduce radiotherapy treatment volume/dose. Outpatient-based carboplatin monotherapy is associated with excellent outcomes in metastatic testicular seminoma (an identical pathology), and successful vinblastine monotherapy induction (with 77% tumor volume reduction after just two weekly vinblastine doses) has recently been reported in an intracranial germinoma patient. METHODS: Adapted UK guidelines for germ cell tumor management were distributed during the COVID-19 pandemic, including nonstandard treatment options to reduce hospital visits and/or admissions. This included vinblastine monotherapy for intracranial germinoma (6 mg/m2 intravenously, or 4 mg/m2 for moderate count suppression, delivered weekly). We describe two such patients treated using this approach. RESULTS: A 30-year-old male with a localized pineal tumor received 12-week vinblastine induction, with >60% volume reduction, prior to definitive radiotherapy. A 12-year-old female with a metastatic suprasellar tumor and progression at all sites of disease whilst awaiting proton radiotherapy received two vinblastine doses with good early response, including 36% primary tumor volume reduction. The patients tolerated vinblastine well. CONCLUSION: Patients with intracranial germinoma have excellent outcomes, and reduction of late effects remains a priority. The description of vinblastine monotherapy in these intracranial germinoma patients warrants further exploration.



carboPEI, carboplatin, germinoma, intracranial, monotherapy, vinblastine, Adult, Antineoplastic Combined Chemotherapy Protocols, Brain Neoplasms, COVID-19, Carboplatin, Child, Etoposide, Female, Germinoma, Humans, Male, Neoplasms, Germ Cell and Embryonal, Pandemics, Vinblastine

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Pediatr Blood Cancer

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