GlobeNewswire Inc | Jan 26, 2021 07:00AM EST

January 26, 2021

LONDON, Jan. 26, 2021 (GLOBE NEWSWIRE) -- Freeline Therapeutics Holdings plc (Nasdaq: FRLN) (the Company or Freeline), a clinical-stage, fully integrated, next generation, systemic AAV-based gene therapy company with the ambition of transforming the lives of patients suffering from inherited systemic debilitating diseases, today announced that it will present two e-posters at the 2021 Virtual Congress of the European Association for Haemophilia and Allied Disorders (EAHAD) taking place 3-5 February 2021. In addition, the Company will present data on its gene therapy programmes for Gaucher and Fabry Disease, in one oral platform presentation and three e-posters at the 17TH Annual WORLDSymposiumtaking place 8-12 February 2021.

EAHAD Presentation Details

Follow-up on a Novel Adeno Associated Virus (AAV) Gene Therapy Title: (FLT180a) Achieving Normal FIX Activity Levels in Severe Hemophilia B(HB) Patients (B-AMAZE Study)Presenter: Pratima Chowdary, Katharine Dormandy Haemophilia and Thrombosis Centre, Royal Free Hospital, University College LondonPresentation ABS-114#:Date and Tuesday, 2 February 2021, 6:00 CETTime:

Insight into the Persistent Clinical Burden Underlying ProblemTitle: Joints, Pain, and Bleeding in Adults from Across Europe with Haemophilia A and B: The CHESS II StudyPresenter: Sharmila Kar, Head of Real-World Evidence, FreelinePresentation ABS-134#:Date: Tuesday, 2 February 2021, 6:00 CET The e-poster presentations will be available from Tuesday, 2 February 2021, asrecordings on theeventssection of the Freeline website.

WORLDSymposiumPresentation Details

Platform presentation:

Title: FLT201: An AAV-Mediated Gene Therapy for Type 1 Gaucher Disease Designed to Target Difficult to Reach TissuesAuthor: Romuald Corbau, Chief Scientific Officer, FreelineDate and Thursday, 11 February 2021, 11:36am ESTTime:

Poster presentations:

Title: FLT201: An AAV-Mediated Gene Therapy for Type 1 Gaucher Disease Designed to Target Difficult to Reach TissuesAuthor: Romuald Corbau, Chief Scientific Officer, FreelinePresentation 44#:Date: Thursday, 11 February 2021

Generation of -Glucocerebrosidase Variants with IncreasedTitle: Half-Life in Human Plasma for Liver Directed AAV Gene Therapy Aimed at the Treatment of Type 1 Gaucher DiseaseAuthor: Fabrizio Comper, Scientific Director, FreelinePresentation 41#: Date: Thursday, 11 February 2021

Development of a GLA nAb Assay with a Fully-Human, NeutralizingTitle: IgG4 Positive Control to Characterize Antibody Response in Fabry Disease PatientsAuthor: Sujata Ravi, Scientist, FreelinePresentation 211#: Date: Thursday, 11 February 2021

The poster presentations will be available on theeventssection of the Freeline website from 2:30 pm EST on Monday, 8 February 2021. A recording of the platform presentation with a live Q&A will be available after the presentation concludes on Thursday, 11 February 2021, also on the eventssection of the Freeline website.

About Freeline

Freeline is a clinical-stage biotechnology company focused on AAV-based gene therapy targeting the liver. Its vision is to create better lives for people suffering from chronic, systemic diseases using the potential of gene therapy as a one-time treatment to provide a potential functional cure. Freeline is headquartered in the UK and has operations in Germany and the US.

Forward-Looking Statements

This press release contains statements that constitute forward-looking statements as that term is defined in the United States Private Securities Litigation Reform Act of 1995, including statements that express the Companys opinions, expectations, beliefs, plans, objectives, assumptions or projections regarding future events or future results, in contrast with statements that reflect historical facts. Examples include discussion of the Companys strategies, financing plans, research, pipeline and clinical trial plans. In some cases, you can identify such forward-looking statements by terminology such as anticipate, intend, believe, estimate, plan, seek, project or expect, may, will, would, could or should, the negative of these terms or similar expressions. Forward looking statements are based on managements current beliefs and assumptions and on information currently available to the Company, and you should not place undue reliance on such statements. Forward-looking statements are subject to many risks and uncertainties, including the Companys recurring losses from operations; the development of the Companys product candidates, including statements regarding the timing of initiation, completion and the outcome of clinical studies or trials and related preparatory work; the Companys ability to design and implement successful clinical trials for its product candidates; the potential for a pandemic, epidemic or outbreak of infectious diseases in the U.S., U.K. or EU, including the COVID-19 pandemic, to disrupt the Companys clinical trial pipeline; the Companys failure to demonstrate the safety and efficacy of its product candidates; the fact that results obtained in earlier stage clinical testing may not be indicative of results in future clinical trials; the Companys ability to enroll patients in clinical trials for its product candidates; the possibility that one or more of the Companys product candidates may cause serious adverse, undesirable or unacceptable side effects or have other properties that could delay or prevent their regulatory approval or limit their commercial potential; the Companys ability to obtain and maintain regulatory approval of its product candidates; the Companys limited manufacturing experience which could result in delays in the development or commercialization of its product candidates; and the Companys ability to identify or discover additional product candidates, or failure to capitalize on programs or product candidates. Such risks and uncertainties may cause the statements to be inaccurate and readers are cautioned not to place undue reliance on such statements. Many of these risks are outside of the Companys control and could cause its actual results to differ materially from those it thought would occur. The forward-looking statements included in this press release are made only as of the date hereof. The Company does not undertake, and specifically declines, any obligation to update any such statements or to publicly announce the results of any revisions to any such statements to reflect future events or developments, except as required by law.

For further information, please reference the Companys reports and documents filed with theU.S. Securities and Exchange Commission. You may get these documents by visiting EDGAR on theSECwebsite atwww.sec.gov.

Further Information

David S. ArringtonVP Investor Relations & Corporate Communications+1 (646) 668 6947david.arrington@freeline.life

United StatesLifeSci AdvisorsDan Ferry+1 (617) 430 7576daniel@lifesciadvisors.com

EuropeJW CommunicationsJulia Wilson+44 (0) 7818 430877juliawilsonuk@gmail.com