WORCESTER, Mass., March 29, 2023 (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, 2022.
Manuel Litchman, M.D., President and Chief Executive Officer of Mustang, said, “In 2022, we advanced our cell and gene therapy programs and presented promising research supporting the potential of our clinical portfolio at several prestigious medical meetings. Our lead clinical candidate is MB-106, a CD20-targeted, autologous CAR T cell therapy to treat relapsed or refractory B-cell non-Hodgkin lymphomas (“B-NHL”) and chronic lymphocytic leukemia (“CLL”). MB-106 continues to generate compelling safety and efficacy data and remains attractive when compared to approved autologous CAR Ts, which are generating an annualized run rate of $3 billion in net sales, based on reported sales in the third quarter of 2022. MB-106 data to date include an overall response rate (“ORR”) of 96% and complete response (“CR”) rate of 75% in a wide range of hematologic malignancies, including Waldenstrom macroglobulinemia (“WM”), in a clinical trial conducted by our collaborators at Fred Hutchinson Cancer Center (“Fred Hutch”). We expect to disclose additional data from this trial at medical meetings in the second quarter. In parallel, Mustang’s multicenter, open-label, non-randomized Phase 1/2 clinical trial evaluating the safety and efficacy of MB-106 continues to accrue, and we anticipate escalation to the final dose level in the Phase 1 indolent lymphoma arm in the second quarter. The FDA granted Orphan Drug Designation to MB-106 for the treatment of WM, and we have already treated the first WM in the indolent lymphoma arm of the trial. We expect that results from this arm will support an accelerated Phase 2 registration strategy for WM, with the first pivotal Phase 2 WM patient potentially to be treated in the first quarter of 2024. In 2023, we plan to report safety and efficacy data from the indolent lymphoma arm at medical meetings in the second quarter, with disclosure of updated data expected in the fourth quarter.”
Financial Results:
- As of December 31, 2022, Mustang’s cash and cash equivalents and restricted cash totaled $76.7 million, compared to $110.6 million as of December 31, 2021, a decrease of $33.9 million year-over-year.
- Research and development expenses were $62.5 million for the year ended December 31, 2022. This compares to $49.9 million for 2021. Non-cash, stock-based compensation expenses included in research and development were $1.6 million for the year ended December 31, 2022, compared to $2.3 million for 2021.
- Research and development expenses from license acquisitions totaled $1.5 million for the year ended December 31, 2022, compared to $5.8 million for 2021. Non-cash, stock-based compensation expenses included in research and development – licenses acquired were $1.1 million for the year ended December 31, 2022, compared to $4.2 million for 2021.
- General and administrative expenses were $12.2 million for the year ended December 31, 2022. This compares to $11.0 million for 2021. Non-cash, stock-based compensation expenses included in general and administrative expenses were $0.9 million for the year ended December 31, 2022, compared to $2.9 million for 2021.
- Net loss attributable to common stockholders was $77.5 million, or $0.75 per share, for the year ended December 31, 2022, compared to a net loss attributable to common stockholders of $66.4 million, or $0.76 per share, for 2021.
2022 and Recent Corporate Highlights:
- In March 2022, Mustang completed a $75 million debt financing with Runway Growth Capital. Thirty million was funded upon closing, with the additional $45 million available upon Mustang achieving certain milestones.
- In June 2022, Mustang announced that the FDA granted Orphan Drug Designation to MB-106 for the treatment of WM, a rare type of B-NHL. Mustang plans to treat additional patients with WM in the Mustang Bio-sponsored Phase 1 portion of its multicenter trial in order to potentially support an accelerated Phase 2 strategy for this indication.
- In October 2022, Mustang announced that the first patient was treated in Mustang’s multicenter, open-label, non-randomized Phase 1/2 clinical trial evaluating the safety and efficacy of MB-106, for the treatment of relapsed or refractory B-NHL and CLL. In 2023, the Company anticipates dose escalation and reporting response data at major medical meetings.
- Additionally, in October 2022, Mustang shared interim data from 28 patients treated in the initial, ongoing Phase 1/2 investigator-sponsored clinical trial at Fred Hutch. These data continue to support MB-106 as a viable CAR T cell therapy for B-NHLs and CLL. An ORR of 96% and CR rate of 75% were observed in a wide range of hematologic malignancies including follicular lymphoma (“FL”), CLL, diffuse large B-cell lymphoma (“DLBCL”) and WM. Twelve patients have experienced CR for more than 12 months (10 ongoing), including four patients with CR for more than two years and the longest patient with CR at 33 months. Six patients with initial partial response at 28 days post-treatment improved to CR, presumably due to the demonstrated persistence of CAR T cells in these patients, and all remain in ongoing CR. All three patients previously treated with CD19 CAR T cell therapy responded to treatment with MB-106. A favorable safety profile for MB-106 as an outpatient therapy remains, with no cytokine release syndrome or immune effector cell-associated neurotoxicity syndrome ≥ Grade 3 reported to date on this trial.
- Mustang continues to collaborate with the Mayo Clinic to progress our exclusively licensed novel in vivo CAR T technology platform that may be able to transform the administration of CAR T therapies and has the potential to be used as an off-the-shelf therapy. Mustang anticipates the publication of proof-of-concept research in a murine tumor model in 2023.
About Mustang Bio
Mustang Bio, Inc. 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 therapies across multiple cancers, as well as lentiviral gene therapies for severe combined immunodeficiency. Mustang’s common stock is registered under the Securities Exchange Act of 1934, as amended, and Mustang files periodic reports with the U.S. Securities and Exchange Commission (“SEC”). Mustang was founded by Fortress Biotech, Inc. (Nasdaq: FBIO). For more information, visit www.mustangbio.com.
Forward‐Looking Statements
This press release contains “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, which are often indicated by terms such as “anticipate,” “believe,” “could,” “estimate,” “expect,” “goal,” “intend,” “look forward to,” “may,” “plan,” “potential,” “predict,” “project,” “should,” “will,” “would” and similar expressions, include, but are not limited to, any statements relating to our growth strategy and product development programs, including the timing of and our ability to make regulatory filings such as INDs and other applications and to obtain regulatory approvals for our product candidates, statements concerning the potential of therapies and product candidates, 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 Annual Report on Form 10-K, subsequent Reports on Form 10-Q, and our other filings we make with the SEC. 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, and we claim the protection of the safe harbor for forward-looking statements contained in the Private Securities Litigation Reform Act of 1995.
Company Contact:
Jaclyn Jaffe
Mustang Bio, Inc.
(781) 652-4500
ir@mustangbio.com
Investor Relations Contact:
Daniel Ferry
LifeSci Advisors, LLC
(617) 430-7576
daniel@lifesciadvisors.com
Media Relations Contact:
Tony Plohoros
6 Degrees
(908) 591-2839
tplohoros@6degreespr.com
MUSTANG BIO, INC.
Balance Sheets
(in thousands, except for share and per share amounts)
| December 31, | December 31, | ||||||
| 2022 | 2021 | ||||||
| ASSETS | |||||||
| Current Assets: | |||||||
| Cash and cash equivalents | $ | 75,656 | $ | 109,618 | |||
| Other receivables – related party | 36 | 50 | |||||
| Prepaid expenses and other current assets | 3,160 | 2,038 | |||||
| Total current assets | 78,852 | 111,706 | |||||
| Property, plant and equipment, net | 8,440 | 9,025 | |||||
| Fixed assets – construction in process | 951 | 2,027 | |||||
| Restricted cash | 1,000 | 1,000 | |||||
| Other assets | 261 | 362 | |||||
| Operating lease right-of-use asset, net | 2,918 | 1,050 | |||||
| Total Assets | $ | 92,422 | $ | 125,170 | |||
| LIABILITIES AND STOCKHOLDERS’ EQUITY | |||||||
| Current Liabilities: | |||||||
| Accounts payable and accrued expenses | $ | 13,731 | $ | 9,744 | |||
| Payables and accrued expenses – related party | 766 | 723 | |||||
| Operating lease liabilities – short-term | 612 | 348 | |||||
| Total current liabilities | 15,109 | 10,815 | |||||
| Deferred income | 270 | 270 | |||||
| Note payable, long-term, net | 27,436 | — | |||||
| Operating lease liabilities – long-term | 3,334 | 1,685 | |||||
| Total Liabilities | 46,149 | 12,770 | |||||
| Stockholders’ Equity | |||||||
| Preferred stock ($0.0001 par value), 2,000,000 shares authorized, 250,000 shares of Class A preferred stock issued and outstanding as of December 31, 2022 and 2021, respectively | — | — | |||||
| Common stock ($0.0001 par value), 200,000,000 and 150,000,000 shares authorized as of December 31, 2022 and 2021, respectively | |||||||
| Class A common shares, 845,385 shares issued and outstanding as of December 31, 2022 and 2021, respectively | — | — | |||||
| Common shares, 106,501,663 and 93,582,991 shares issued and outstanding as of December 31, 2022 and 2021, respectively | 11 | 9 | |||||
| Common stock issuable, 2,807,008 and 2,536,607 shares as of December 31, 2022 and 2021, respectively | 1,109 | 4,329 | |||||
| Additional paid-in capital | 374,522 | 359,906 | |||||
| Accumulated deficit | (329,369 | ) | (251,844 | ) | |||
| Total Stockholders’ Equity | 46,273 | 112,400 | |||||
| Total Liabilities and Stockholders’ Equity | $ | 92,422 | $ | 125,170 | |||
MUSTANG BIO, INC.
Statements of Operations
(in thousands, except for share and per share amounts)
| For the year ended December 31, | |||||||
| 2022 | 2021 | ||||||
| Operating expenses: | |||||||
| Research and development | $ | 62,475 | $ | 49,864 | |||
| Research and development – licenses acquired | 1,474 | 5,842 | |||||
| General and administrative | 12,210 | 11,017 | |||||
| Total operating expenses | 76,159 | 66,723 | |||||
| Loss from operations | (76,159 | ) | (66,723 | ) | |||
| Other income (expense) | |||||||
| Grant income | 1,304 | — | |||||
| Interest income | 689 | 368 | |||||
| Interest expense | (3,359 | ) | (15 | ) | |||
| Total other income (expense) | (1,366 | ) | 353 | ||||
| Net Loss | $ | (77,525 | ) | $ | (66,370 | ) | |
| Net loss per common share outstanding, basic and diluted | $ | (0.75 | ) | $ | (0.76 | ) | |
| Weighted average number of common shares outstanding, basic and diluted | 103,432,603 | 87,885,235 | |||||
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