Mustang Bio Reports Full-Year 2018 Financial Results and Recent Corporate Highlights

NEW YORK, March 18, 2019 (GLOBE NEWSWIRE) -- Mustang Bio, Inc. (“Mustang”) (NASDAQ: MBIO), a clinical-stage biopharmaceutical company focused on translating today’s medical breakthroughs in cell and gene therapies into potential cures for hematologic cancers, solid tumors and rare genetic diseases, today announced financial results and recent corporate highlights for the full year ended December 31, 2018.

Manuel Litchman, M.D., President and Chief Executive Officer of Mustang, said, “2018 was a transformational year for Mustang that positioned the company for further exciting advances in 2019. We enhanced our pipeline of therapies in August by adding a clinical-stage lentiviral gene therapy product candidate with curative potential for X-linked severe combined immunodeficiency (“XSCID”), for which we’re expecting compelling data to be published in a major medical journal this year. In June, we opened our cell processing facility in Worcester, Mass., which is now fully operational. We anticipate processing patients’ cells in the coming months under Mustang’s first IND—a significant milestone for the company. In December, the U.S. Food and Drug Administration (“FDA”) granted Orphan Drug Designation to MB-102 (CD123 CAR T) for the treatment of blastic plasmacytoid dendritic cell neoplasm (“BPDCN”), a rare and incurable blood cancer. Most recently, in February we licensed an oncolytic virus (C134) that we plan to combine with MB-101 (IL13Rα2-specific CAR) to potentially enhance efficacy in treating glioblastoma multiforme. With these achievements, Mustang has built a strong foundation for success in the coming year.”

Financial Results:

• As of December 31, 2018, Mustang’s consolidated cash, cash equivalents, short-term investments (certificates of deposit) and restricted cash totaled $34.6 million, compared to $41.3 million as of September 30, 2018, and $61.5 million as of December 31, 2017, a decrease of $6.7 million for the fourth quarter and a decrease of $26.9 million year-to-date.
• Research and development expenses were $21.1 million for the year ended December 31, 2018. This compares to $7.9 million for 2017. Non-cash, stock-based compensation expenses included in research and development were $3.4 million for the year ended December 31, 2018, compared to $0.7 million for 2017.
• Research and development expenses from license acquisitions totaled $3.4 million for the year ended December 31, 2018, compared to $12.4 million for 2017. Non-cash, stock-based compensation expenses included in research and development – licenses acquired were $2.1 million for the year ended December 31, 2018, compared to $9.6 million for 2017.
• General and administrative expenses were $6.8 million for the year ended December 31, 2018. This compares to $11.4 million for 2017. Non-cash, stock-based compensation expenses included in general and administrative expenses were $1.5 million for the year ended December 31, 2018, compared to $2.6 million for 2017.
• Net loss attributable to common stockholders was $30.7 million, or $1.14 per share, for the year ended December 31, 2018, compared to a net loss attributable to common stockholders of $31.3 million, or $1.24 per share, for 2017.

2018 and Recent Corporate Highlights:

• In May 2018, Mustang announced the publication of preclinical data in JCI Insight demonstrating that glioblastoma‐targeted CD4+ CAR T cells mediate superior antitumor activity over CD8+ CAR T cells. The data, published by research partner City of Hope, will be applied in the ongoing Phase 1 trial of Mustang’s IL13Rα2‐specific CAR T MB‐101 in glioblastoma.
• In June 2018, Mustang opened a proprietary CAR T cell therapy manufacturing facility at UMass Medicine Science Park in Worcester, Mass. The facility will support the clinical development and commercialization of Mustang’s CAR T and gene therapy product candidates and enable proprietary cell therapy research.
• Also in June 2018, Mustang was added to the Russell 2000®, 3000® and Microcap® Indexes.
• In July 2018, Mustang completed a pre-Investigational New Drug (“pre-IND”) meeting with the FDA for MB-102 (CD123 CAR T). Based on the meeting, Mustang expects to initiate a multicenter Phase 1/2 trial of MB-102 in acute myeloid leukemia (“AML”), BPDCN and high-risk myelodysplastic syndrome in the second half of 2019.
• In August 2018, Mustang announced that it entered into an exclusive worldwide license agreement with St. Jude Children’s Research Hospital for the development of a potentially first-in-class ex vivo lentiviral gene therapy for the treatment of XSCID, also known as bubble boy disease. The therapy is currently being evaluated in a Phase 1/2 multicenter trial in infants under the age of two. This study is the world’s first lentiviral gene therapy trial for infants with XSCID. The therapy is also being investigated in patients over the age of two in a second Phase 1/2 trial at the National Institutes of Health (“NIH”). The company believes these may be registration trials.
• In October 2018, Mustang announced that City of Hope initiated a first-of-its-kind Phase 1 clinical trial evaluating the safety and effectiveness of intraventricular delivery of CAR T cells to the brains of patients with HER2-positive breast cancer with brain metastases; the first patient was dosed in December 2018. In addition, Mustang announced that City of Hope dosed the first patient in a Phase 1 clinical trial of HER2-specific CAR T cells in treating recurrent or refractory grade III-IV glioma. The trial is evaluating the side effects and best dose of HER2-specific CAR T cells in treating patients with grade III-IV glioma that has come back or does not respond to treatment.
• In November 2018, Mustang announced that additional safety and efficacy Phase 1 data evaluating MB-102 (CD123 CAR) in relapsed or refractory AML and BPDCN were presented in an oral session at the American Association for Cancer Research (“AACR”) Special Conference on Tumor Immunology and Immunotherapy.
• In December 2018, the FDA granted Orphan Drug Designation to MB-102 (CD123 CAR T) for the treatment of BPDCN.
• In February 2019, Mustang announced that it partnered and entered into an exclusive worldwide license agreement with Nationwide Children’s Hospital to develop an oncolytic virus (C134) for the treatment of glioblastoma multiforme. Mustang intends to combine the oncolytic virus with MB-101 (IL13Rα2-specific CAR) to potentially enhance efficacy in treating glioblastoma multiforme.

About Mustang Bio
Mustang Bio, Inc. (“Mustang”) is a clinical-stage biopharmaceutical company focused on translating today’s medical breakthroughs in cell and gene therapies into potential cures for hematologic cancers, solid tumors and rare genetic diseases. Mustang aims to acquire rights to these technologies by licensing or otherwise acquiring an ownership interest, to fund research and development, and to outlicense or bring the technologies to market. Mustang has partnered with top medical institutions to advance the development of CAR T and CRISPR/Cas9-enhanced CAR T therapies across multiple cancers, as well as a lentiviral gene therapy for X­SCID. Mustang is registered under the Securities Exchange Act of 1934, as amended, and files periodic reports with the U.S. Securities and Exchange Commission. Mustang was founded by Fortress Biotech, Inc. (NASDAQ: FBIO). For more information, visit www.mustangbio.com.

Forward‐Looking Statements 
This press release may contain “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, each as amended. Such statements include, but are not limited to, any statements relating to our growth strategy and product development programs and any other statements that are not historical facts. Forward-looking statements are based on management’s current expectations and are subject to risks and uncertainties that could negatively affect our business, operating results, financial condition and stock value. Factors that could cause actual results to differ materially from those currently anticipated include: risks relating to our growth strategy; our ability to obtain, perform under and maintain financing and strategic agreements and relationships; risks relating to the results of research and development activities; risks relating to the timing of starting and completing clinical trials; uncertainties relating to preclinical and clinical testing; our dependence on third-party suppliers; our ability to attract, integrate and retain key personnel; the early stage of products under development; our need for substantial additional funds; government regulation; patent and intellectual property matters; competition; as well as other risks described in our SEC filings. We expressly disclaim any obligation or undertaking to release publicly any updates or revisions to any forward-looking statements contained herein to reflect any change in our expectations or any changes in events, conditions or circumstances on which any such statement is based, except as required by law.

Company Contacts:
Jaclyn Jaffe and William Begien
Mustang Bio, Inc.
(781) 652-4500
ir@mustangbio.com

Investor Relations Contact:
Daniel Ferry
LifeSci Advisors, LLC
(617) 535-7746
daniel@lifesciadvisors.com

Media Relations Contact:
Tony Plohoros
6 Degrees
(908) 940-0135
tplohoros@6degreespr.com  

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Released March 18, 2019