Spectrum Pharmaceuticals Reports Third Quarter 2019 Financial Results and Pipeline Update

• Topline data from Cohort 1 of ZENITH20 trial evaluating poziotinib for NSCLC expected in December
• Basket trial initiated to study poziotinib in patients with EGFR or HER2 mutation-positive malignant solid tumors in an investigator-led study at The University of Texas MD Anderson Cancer Center
• ROLONTIS^®(eflapegrastim) Biologics License Application (BLA) submitted on October 24, 2019

HENDERSON, Nev.--(BUSINESS WIRE)-- Spectrum Pharmaceuticals, Inc. (NasdaqGS: SPPI), a biopharmaceutical company focused on novel and targeted oncology therapies, announced today financial results for the three-month period ended September 30, 2019.

“Spectrum has an expanding pipeline, significant near-term milestones, solid capitalization and a highly focused team,” said Joe Turgeon, President and CEO, Spectrum Pharmaceuticals. “In December, we look forward to results from Cohort 1 of our ZENITH20 study investigating poziotinib in lung cancer patients with hard-to-treat mutations. We recently submitted our BLA for ROLONTIS to the FDA, a key milestone, as we continue to execute on our strategic priorities.”

Pipeline Updates

Poziotinib, an irreversible tyrosine kinase inhibitor targeting EGFR and HER2 mutations

• Topline results from the EGFR previously treated non-small cell lung cancer cohort (Cohort 1) in the ZENITH20 trial are expected in December. These data could potentially support a New Drug Application (NDA) filing with the FDA.
• The HER2 previously-treated non-small cell lung cancer cohort (Cohort 2) of the ZENITH20 trial is fully accrued and is expected to have topline results by mid-year 2020. This cohort also has the potential to support an NDA filing with the FDA in the future.
• A basket study has been initiated to investigate poziotinib in patients with EGFR or HER2 mutation-positive malignant solid tumors in an investigator-led study, with the first patient enrolled at The University of Texas MD Anderson Cancer Center.
• In September, new preclinical data from The University of Texas MD Anderson Cancer Center, was presented during the IASLC 2019 World Conference on Lung Cancer in Barcelona, Spain. These scientific data support the recently announced expansion of the ZENITH20 trial.

ROLONTIS (eflapegrastim), a novel long-acting GCSF

• Spectrum submitted the ROLONTIS BLA to the FDA on October 24, 2019.
• In October, Spectrum presented a poster at the ASCO Supportive Care in Oncology Symposium in San Francisco, CA, highlighting integrated efficacy data from the Phase 3 ROLONTIS clinical trials, ADVANCE and RECOVER which studied more than 600 patients combined and met all primary and secondary endpoints.
• Integrated safety data from the ROLONTIS studies will be presented at the San Antonio Breast Cancer Symposium meeting in December.

Three-Month Period Ended September 30, 2019 (All numbers are from Continuing Operations and are approximate)

GAAP Results

Spectrum recorded a loss of $26.6 million, or $0.24 loss per basic and diluted share, in the three-month period ended September 30, 2019, compared to net loss of $69.2 million, or $0.66 loss per basic and diluted share, in the comparable period in 2018. Total research and development expenses were $17.2 million in the quarter, as compared to $15.3 million in the same period in 2018. Selling, general and administrative expenses were $13.1 million in the quarter, compared to $13.1 million in the same period in 2018.

The company ended the quarter with cash, cash equivalents, restricted cash, and marketable securities of $252 million.

Non-GAAP Results

Spectrum recorded a non-GAAP loss of $24.5 million, or a non-GAAP loss of $0.22 per basic and diluted share, in the three-month period ended September 30, 2019, compared to a non-GAAP loss of $25.3 million, or a non-GAAP loss of $0.24 per basic and diluted share, in the comparable period in 2018. Non-GAAP research and development expenses were $16.1 million, as compared to $14.7 million in the same period of 2018. Non-GAAP selling, general and administrative expenses were $9.9 million, as compared to $11.1 million in the same period in 2018.

Conference Call:

Thursday, November 7, 2019 @ 4:30 p.m. Eastern/1:30 p.m. Pacific

Domestic: (877) 837-3910, Conference ID# 1469173
International: (973) 796-5077, Conference ID# 1469173

This conference call will also be webcast. Listeners may access the webcast, which will be available on the investor relations page of Spectrum Pharmaceuticals' website: http://investor.sppirx.com/events-and-presentations on November 7, 2019 at 4:30 p.m. Eastern/1:30 p.m. Pacific.

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.

About ZENITH20

The ZENITH20 study consists of seven cohorts of NSCLC patients. Cohorts 1 (EGFR) and 2 (HER2) have completed enrollment of previously-treated NSCLC patients with exon 20 mutations. Cohort 3 (EGFR) and 4 (HER2) are currently enrolling first-line NSCLC patients with exon 20 mutations. Cohorts 1- 4 are each independently powered for a pre-specified statistical hypothesis and the primary endpoint is objective response rate (ORR). In July 2019, three new cohorts were added to the ZENITH20 study that are all currently enrolling patients. Cohort 5 includes previously treated or treatment-naïve NSCLC patients with EGFR or HER2 exon 20 insertion mutations. Cohort 6 includes NSCLC patients with classical EGFR mutations who progressed while on treatment with first-line osimertinib and developed an additional EGFR mutation. Cohort 7 includes NSCLC patients with a variety of less common mutations in EGFR or HER2 exons 18-21 or the extracellular or transmembrane domains.

Notice Regarding Forward-Looking Statements

Certain statements in this press release may constitute “forward-looking statements” within the meaning of the United States Private Securities Litigation Reform Act of 1995, as amended to date. These forward-looking statements relate to a variety of matters, including, without limitation, statements that relate to Spectrum’s business and its future, including the company’s ability to advance development of its late-stage pipeline assets, the ability of poziotinib to meet currently unaddressed medical needs and the size of the potential markets, the timing of the results of cohort 1 and cohort 2 in Spectrum’s ZENITH20 study, the future potential of Spectrum’s existing drug pipeline, the progression of the poziotinib development program and other statements that are not purely statements of historical fact. These forward-looking statements are made on the basis of the current beliefs, expectations, and assumptions of the management of Spectrum and are subject to significant risks and uncertainties that could cause actual results to differ materially from what may be expressed or implied in these forward-looking statements. Risks that could cause actual results to differ include, but are not limited to, the uncertainties inherent in new product development, including clinical trial results and additional analysis of existing pre-clinical and clinical data, the possibility that Spectrum's new and existing drug candidates, including poziotinib, may not ultimately prove to be safe or effective, the possibility that Spectrum's new and existing drug candidates, if approved, may not be more effective, safer, or more cost efficient than competing drugs, and other risks that are described in further detail in the company's reports filed with the Securities and Exchange Commission. The company does not plan to update any such forward-looking statements and expressly disclaims any duty to update the information contained in this press release except as required by law. For a further discussion of risks and uncertainties that could cause actual results to differ from those expressed in these forward-looking statements, as well as risks relating to the business of Spectrum in general, see the risk disclosures in the Annual Report on Form 10-K of Spectrum for the year ended December 31, 2018, and in subsequent reports on Forms 10-Q and 8-K and other filings made with the SEC by Spectrum.

SPECTRUM PHARMACEUTICALS, INC.^® and ROLONTIS^® are registered trademarks of Spectrum Pharmaceuticals, Inc and its affiliates. REDEFINING CANCER CARE™ and the Spectrum Pharmaceuticals’ logos are trademarks owned by Spectrum Pharmaceuticals, Inc. Any other trademarks are the property of their respective owners.

© 2019 Spectrum Pharmaceuticals, Inc. All Rights Reserved

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