Journal of oncology pharmacy practice : official publication of the International Society of Oncology Pharmacy Practitioners
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J Oncol Pharm Pract · Jul 2020
Case ReportsPembrolizumab-induced thrombotic thrombocytopenic purpura.
Pembrolizumab is a humanised monoclonal antibody targeting the receptor programmed cell death protein-1 (PD-1), with anti-tumour activity demonstrated for many malignancies. Such immune checkpoint inhibitors are associated with many immune-related adverse events including rash, colitis, hepatitis, pneumonitis, endocrinopathy and, rarely, haematological adverse events, including immune-related thrombocytopenia. ⋯ Acquired thrombotic thrombocytopenic purpura is an autoimmune disorder caused by an inhibitory autoantibody against ADAMTS-13. While most cases of acquired thrombotic thrombocytopenic purpura are idiopathic, certain conditions (e.g. bacterial infection, autoimmune disorders, malignancies) and medications are associated with thrombotic thrombocytopenic purpura. Other potential causes were eliminated in our patient. As acquired thrombotic thrombocytopenic purpura is an autoimmune disorder, pembrolizumab, given its unique mechanism of action and association with immune-related adverse events, is believed to be implicated in the development of thrombotic thrombocytopenic purpura. This case is one of only two linking anti-PD-1 therapy to thrombotic thrombocytopenic purpura development (the other occurring in a patient on nivolumab plus ipilimumab). Thrombotic thrombocytopenic purpura is life-threatening and clinicians are advised to be aware of its possible occurrence in immune checkpoint inhibitor-treated patients.
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J Oncol Pharm Pract · Jul 2020
Case ReportsClinical course of COVID-19 infection in elderly patient with melanoma on nivolumab.
Outbreak of the new type coronavirus infection, known as coronavirus infection 2019 (COVID-19), has begun in December 2019, in Wuhan, China. As of today, 3 April 2020, 972,640 people affected and 50,325 people died from Severe Acute Respiratory Syndrome-Coronavirus 2. There is not any standard treatment for coronavirus infection 2019; however, there are promising data for hydroxychloroquine and some anti-retroviral drugs. ⋯ In contrast to her older age, comorbidities, and cancer diagnosis, she was in a good condition, and there was also no pneumonia finding. We think that this good clinical course of coronavirus infection 2019 infection may be related to blockade of PD-1/PDL-1 pathway with nivolumab. It is impossible to say that blockade of PD-1/PDL-1pathway is a treatment option for COVID-19; however, we want to share our experience.
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J Oncol Pharm Pract · Jul 2020
Global oncology pharmacy response to COVID-19 pandemic: Medication access and safety.
Response, action, and adaptation of the way health services are delivered will impact our ability to provide optimized and continuity of care while acting within resource constraints imposed by COVID-19. Care for patients with cancer is particularly important given increased infection rates and worse outcomes from COVID-19 in this patient population, as well as potential adverse outcomes if treatment pathways need to be compromised. ⋯ This perspective was prepared by the International Society of Oncology Pharmacy Practitioners, with input from national and regional oncology pharmacy practice groups (42 practice leaders from 28 countries and regions) who contributed to a snapshot survey between 10 and 22 April 2020. Specifically, we highlight challenges related to safe handling of hazardous drugs and maintaining high-quality medication safety standards that have impacted various stakeholders.