- beti-cel for beta-thalassemia PDUFA goal date is set for August 19, 2022 -

- eli-cel for cerebral adrenoleukodystrophy PDUFA goal date is set for September 16, 2022 -

- Ended quarter with $218M in restricted cash, cash and cash equivalents

and marketable securities -

bluebird bio, Inc. (NASDAQ: BLUE) (“bluebird bio” or the “Company”) today reported financial results and business highlights for the second quarter ended June 30, 2022, and shared recent operational progress.

“The second quarter marked significant progress for bluebird bio and a precedent-setting moment for the field of gene therapy,” said Andrew Obenshain, chief executive officer, bluebird bio. “With the FDA advisory committee’s unanimous support for beti-cel and eli-cel for their target indications, we are now laser-focused on commercial readiness, and if approved, we anticipate launching both therapies in the fourth quarter of this year. Additionally, this quarter we advanced the remaining CMC steps ahead of our lovo-cel BLA submission, and we remain on track to submit the BLA in the first quarter of next year.”

RECENT HIGHLIGHTS

BETI-CEL

• UNANIMOUS POSITIVE VOTE AT FDA ADVISORY COMMITTEE MEETING – On June 10, the U.S. Food and Drug Administration’s (FDA) Cellular, Tissue, and Gene Therapies Advisory Committee (CTGTAC) voted (13-0) that the benefits of betibeglogene autotemcel (beti-cel) gene therapy outweigh the risks for people with beta-thalassemia who require regular red blood cell transfusions. If approved, beti-cel will be the first ex-vivo LVV gene therapy available in the U.S.
• ICER REVIEW – The Institute for Clinical and Economic Review (ICER) completed its review of beti-cel for people with beta-thalassemia and determined in its final report that beti-cel will be cost effective at a price up to $3.0 million. bluebird anticipates setting a price for beti-cel upon potential FDA approval.

ELI-CEL

• UNANIMOUS POSITIVE VOTE AT FDA ADVISORY COMMITTEE MEETING – On June 9, the FDA CTGTAC voted (15-0) that the benefits of elivaldogene autotemcel (eli-cel) gene therapy outweigh the risks for the treatment of any sub-population of children with early active cerebral adrenoleukodystrophy (CALD). If approved, eli-cel will be the first and only gene therapy for the treatment of early active CALD, a rare neurodegenerative disease that primarily affects young children and leads to irreversible loss of neurologic function and death.

LOVO-CEL

• CONTINUED PROGRESS TOWARD BLA SUBMISSION – bluebird bio remains on track to submit a biologics licensing application (BLA) to the FDA for lovotibeglogene autotemcel (lovo-cel) for sickle cell disease in the first quarter of 2023. As previously communicated, the Company has treated all patients in HGB-206 Group C who will form the primary basis of efficacy for BLA submission. This quarter, the Company completed manufacturing of commercial drug product validation lots, marking significant progress on CMC requirements and final steps to BLA submission. Additionally, bluebird completed enrollment of all patients in the HGB-210 study necessary to support manufacturing data requirements for the BLA submission. The remaining step prior to BLA submission is completion of vector and drug product analytical comparability, which the Company expects to complete in the fourth quarter of 2022.
  
  
  
  The Company remains in active dialogue with the FDA about the resolution of the partial clinical hold for patients under 18. The Company is continuing to enroll and treat patients 18 and older in the HGB-210 study.

COMPANY

• TOM KLIMA APPOINTED CHIEF COMMERCIAL & OPERATING OFFICER – Effective August 8, Tom Klima will serve as Chief Commercial & Operating Officer. Klima joined bluebird in May 2021 as Chief Commercial Officer to hone the Company’s commercial strategy and oversee launch execution plans for its gene therapy portfolio. His new role reflects expanded responsibilities for program management and patient supply chain in addition to sales, marketing and market access.

UPCOMING INVESTOR EVENT

Members of the management team will participate in the 2022 Wedbush PacGrow Virtual Healthcare Conference, Wednesday, August 10, at 9:10 a.m. ET as part of the panel titled Miss Con-GENE-iality - Updates in Gene Tx.

UPCOMING ANTICIPATED MILESTONES

BETI-CEL

• The FDA has set a PDUFA goal date for August 19, 2022, and if approved, the Company anticipates first apheresis in the fourth quarter of 2022.
• beti-cel is being reviewed under Priority Review for the treatment of beta-thalassemia in patients requiring regular red blood cell transfusions. bluebird bio anticipates receiving a Priority Review Voucher (PRV) upon potential approval of beti-cel.

ELI-CEL

• The FDA has set a PDUFA goal date of September 16, 2022, and if approved, the Company anticipates therapy availability in the fourth quarter of 2022.
• eli-cel is being reviewed under Priority Review for the treatment of cerebral adrenoleukodytrophy in patients less than 18 years of age who do not have an available and willing human leukocyte antigen (HLA)-matched sibling hematopoietic stem cell (HSC) donor. bluebird bio anticipates receiving a PRV upon potential approval of eli-cel.
• bluebird bio is in active communication with the FDA to resolve the eli-cel clinical hold and anticipates the FDA’s questions may be resolved concurrent with the agency’s ongoing review of the Company’s BLA submission.

LOVO-CEL

• The Company is in active communication with the FDA to resolve the lovo-cel partial clinical hold and resume enrollment and treatment of patients under the age of 18.
• The Company expects to complete vector and drug product analytical comparability in the fourth quarter of 2022.
• The Company plans to submit its BLA for lovo-cel in Q1 2023.

SECOND QUARTER 2022 FINANCIAL RESULTS

• Cash Position: The Company’s restricted cash, cash and cash equivalents and marketable securities balance was approximately $218 million, including restricted cash of approximately $45 million, as of June 30, 2022. The full-year 2022 cash burn is expected to be less than $340 million.
  
  
  
  As of today, the Company has raised approximately $24.7 million in gross proceeds through its At-the-Market (ATM) equity facility. Of this $24.7 million, $8.0 million in net proceeds were realized in the second quarter and are reflected in the restricted cash, cash and cash equivalents and marketable securities balanced as of June 30, 2022. The Company is exploring additional financing opportunities, including public or private equity financings and monetizing any priority review vouchers that may be issued upon approval of beti-cel or eli-cel.

• Revenues: Total revenue was $1.5 million for the three months ended June 30, 2022, compared to $0.1 million for the three months ended June 30, 2021.

• R&D Expenses: Research and development expenses from continuing operations were $63.8 million for the three months ended June 30, 2022, compared to $84.6 million for the three months ended June 30, 2021. The decrease of $20.8 million was primarily due to decreased employee compensation, benefits, other head-count related expenses, information technology and facility-related costs, lab expenses and clinical trial costs. These decreased costs were partially offset by increased manufacturing costs.

• SG&A Expenses: Selling, general and administrative expenses from continuing operations were $36.7 million for the three months ended June 30, 2022, compared to $55.0 million for the three months ended June 30, 2021. The decrease of $18.3 million was primarily due to decreased employee compensation, benefit, and other head-count related expenses and decreased commercial readiness activities due to the Company’s decision to focus its efforts on the U.S. market for beti-cel, eli-cel, and lovo-cel. These decreased costs were partially offset by increased information technology and facility-related costs due to the addition of the Company’s office lease in Somerville, Massachusetts.

• Net Loss: Net loss from continuing operations was $100.1 million for the three months ended June 30, 2022, compared to $155.8 million for the three months ended June 30, 2021.

About bluebird bio, Inc.

bluebird bio is pursuing curative gene therapies to give patients and their families more bluebird days.

With a dedicated focus on severe genetic diseases, bluebird has industry-leading clinical programs for sickle cell disease, β-thalassemia and cerebral adrenoleukodystrophy and is advancing research to apply new technologies to these and other diseases. We custom design each of our therapies to address the underlying cause of disease and have developed in-depth and effective analytical methods to understand the safety of our lentiviral vector technologies and drive the field of gene therapy forward.

Founded in 2010, bluebird has the largest and deepest ex-vivo gene therapy data set in the world—setting the standard for the industry. Today, bluebird continues to forge new paths, combining our real-world experience with a deep commitment to patient communities and a people-centric culture that attracts and grows a diverse flock of dedicated birds.

bluebird bio is a trademark of bluebird bio, Inc.

Forward-Looking Statements

This press release contains “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. All statements that are not statements of historical facts are, or may be deemed to be, forward-looking statements, including our statements regarding the Company’s financial condition, results of operations, and anticipated cash burn for 2022, as well as statements regarding the Company’s plans and expectations for operations including expected timing relating to its regulatory approvals, commercial launches including the initiation of patient apheresis in the commercial context following potential approval, expectations regarding the price of any therapy if approved by the FDA, plans for future regulatory submissions, expectations regarding the timing of completion of vector and drug product analytical comparability for lovo-cel, expectations regarding the receipt of any Priority Review Vouchers upon potential approval of beti-cel or eli-cel, and our expectations regarding the timing for a potential BLA submission for lovo-cel, anticipated PDUFA goal dates and anticipated FDA approval of the BLAs for beti-cel and eli-cel. Such forward-looking statements are based on historical performance and current expectations and projections about our future financial results, goals, plans and objectives and involve inherent risks, assumptions and uncertainties, including internal or external factors that could delay, divert or change any of them in the next several years, that are difficult to predict, may be beyond our control and could cause our future financial results, goals, plans and objectives to differ materially from those expressed in, or implied by, the statements. No forward-looking statement can be guaranteed. Forward-looking statements in this press release should be evaluated together with the many risks and uncertainties that affect bluebird bio’s business, particularly those identified in the risk factors discussion in bluebird bio’s Annual Report on Form 10-K, as updated by our subsequent Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and other filings with the Securities and Exchange Commission. These risks include, but are not limited to: the risk that we may not realize expected cost savings from the restructuring, including the anticipated decrease in operational expenses, at the levels we expect; we may encounter additional delays in the development of our programs, including the imposition of new clinical holds or delays in resolving existing clinical holds, that may impact our ability to meet our expected timelines and increase our costs; the internal and external costs required for our ongoing and planned activities, and the resulting impact on expense and use of cash, may be higher than expected which may cause us to use cash more quickly than we expect or change or curtail some of our plans or both; our expectations as to expenses, cash usage and cash needs may prove not to be correct for other reasons such as changes in plans or actual events being different than our assumptions; the risk that the efficacy and safety results from our prior and ongoing clinical trials will not continue or be seen in additional patients treated with our product candidates; the risk that additional insertional oncogenic or other reportable events associated with lentiviral vector, drug product, or myeloablation will be discovered or reported over time; the risk that our eli-cel, beti-cel and lovo-cel programs may be subject to further delays in their development, including but not limited to the imposition of new clinical holds; the risk that eli-cel and/or beti-cel may not be approved within the priority review timeframe or at all; the risk that any one or more of our product candidates, including eli-cel and/or beti-cel, will not be successfully developed, approved or commercialized. The forward-looking statements included in this document are made only as of the date of this document and except as otherwise required by applicable law, bluebird bio undertakes no obligation to publicly update or revise any forward-looking statement, whether as a result of new information, future events, changed circumstances or otherwise.

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