Spectrum Pharmaceuticals (NasdaqGS: SPPI), a biopharmaceutical company focused on novel and targeted oncology therapies, today announced abstract acceptance with a poster presentation at the upcoming American Association for Cancer Research (AACR) Annual Meeting, to be held in New Orleans from April 8-13, 2022.

Session title and information for the poster is listed below and is now available on the AACR online itinerary planner.

Predictive ability of circulating tumor DNA by Guardant360 in poziotinib-treated patients with NSCLC harboring HER2 exon 20 insertion mutations

Session Title: PO.CL11.03 - Cell-Free DNA 2

Session Date and Time: Tuesday, April 12, 2022; 1:30 PM - 5:00 PM CT

Location: New Orleans Convention Center, Section 31

Abstract / Poster: 3400 / 6

Copies of the presentation will be available on Spectrum's website at https://investor.sppirx.com/events-and-presentations following presentation at the meeting.

About Spectrum Pharmaceuticals, Inc.

Spectrum Pharmaceuticals is a biopharmaceutical company focused on acquiring, developing, and commercializing novel and targeted oncology therapies. Spectrum has a strong track record of successfully executing across the biopharmaceutical business model, from in-licensing and acquiring differentiated drugs, clinically developing novel assets, successfully gaining regulatory approvals and commercializing in a competitive healthcare marketplace. Spectrum has a late-stage pipeline with novel assets that serve areas of unmet need. This pipeline has the potential to transform the company in the near future. For additional information on Spectrum Pharmaceuticals please visit www.sppirx.com.

Notice Regarding Forward-looking Statements

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