Background: It has been a major challenge finding an effective second-line therapy with a favorable safety profile for metastatic small cell lung cancer (SCLC) in patients who failed or relapsed following first-line platinum-based chemotherapy. Lurbinectedin was approved for SCLC in patients who relapsed or failed first-line treatment. The most common adverse event associated with it was myelosuppression. Till date, no cardiotoxicity has been described with this medication in the literature.
Case PresentationWe report an unusual case of acute cardiotoxicity following commencement of lurbinectedin in a 51-year old female with a history of metastatic SCLC, who despite receiving platinum-based dual chemotherapy durvalumab, continued to show progression of the disease. She presented to the ER 2 days after receiving lurbinectedin, with sudden onset of shortness of breath, hypotension and tachycardia. Electrocardiogram showed sinus tachycardia, troponin was elevated and echocardiogram revealed severely reduced systolic function and diffuse hypokinesis with no identifiable regional variations. Lurbinectedin was discontinued. She was intubated due to worsening respiratory distress, started on vasopressors and pulse dose methylprednisolone. Repeat echocardiogram showed improved systolic function (55% -60%). Her clinical condition also improved and she was successfully intubated. After extensive discussion about goals of care, the decision was to make the patient comfortable and DNR/DNI. She however unfortunately expired a few days after.
Conclusion:Clinicians and Oncologists should be aware of the potential of lurbinectedin to cause cardiotoxicity and further observational studies are needed to examine this association.