Lysogene Announces Presentations at Upcoming Meetings

Regulatory News:

Lysogene (Paris:LYS) (FR0013233475 ? LYS), a Phase 3 gene therapy platform company targeting central nervous system (CNS) diseases, today announced the upcoming abstract selected for an oral presentation at the virtual 23^rd ASGCT Annual Meeting and presentations at the EFGCP and NTSAD family conference.

2020 American Society of Gene & Cell Therapy Annual (ASGCT) virtual Meeting
Lysogene will present preclinical results for its gene therapy candidate LYS-GM101 for GM1-Gangliosidosis.

Abstract: Investigational AAV Gene Therapy LYS-GM101 for GM1-Gangliosidosis
Presenter: Ralph Laufer, Lysogene CSO
Date: Friday May 15, 2020
Time: 11:15 AM - 11:30 AM EST
Room: Ballroom A
Register: https://annualmeeting.asgct.org/am20/registration

European Forum for Good Clinical Practice (EFGCP) Webinar
Lysogene will present a novel methodology to collect longitudinal patient-specific home-based video data in mucopolysaccharidosis type IIIA and GM1-gangliosidosis.

Webinar - Digital Tools for Paediatric Clinical Trials
Presenter: Samantha Parker, Lysogene CPO
Date: Monday May 18, 2020
Time: 5:00pm to 6:30pm CEST
Register: http://efgcp.eu/cgi?lg=en&pag=3846&tab=108&rec=124&frm=0

National Tay Sachs and Associated Diseases (NTSAD) Virtual 2020 Family Conference
Lysogene will highlight the design of the GM1-gangliosidosis gene therapy trial.

Webinar - GM1 Research Session
Presenter: Samantha Parker, Lysogene CPO
Date: Friday May 29, 2020
Time: 2:00pm ? 3:30pm EST
Register: https://ntsadannualfamilyconference.com/register/

About Lysogene
Lysogene is a gene therapy company focused on the treatment of orphan diseases of the central nervous system (CNS). The company has built a unique capability to enable a safe and effective delivery of gene therapies to the CNS to treat lysosomal diseases and other genetic disorders of the CNS. A phase 2/3 clinical trial in MPS IIIA in partnership with Sarepta Therapeutics, Inc. is ongoing and a phase 1/3 clinical trial in GM1 gangliosidosis is in preparation. In accordance with the agreements signed between Lysogene and Sarepta Therapeutics, Inc., Sarepta Therapeutics, Inc. will hold exclusive commercial rights to LYS-SAF302 in the United States and markets outside Europe; and Lysogene will maintain commercial exclusivity of LYS-SAF302 in Europe. Lysogene is also collaborating with an academic partner to define the strategy of development for the treatment of Fragile X syndrome, a genetic disease related to autism. www.lysogene.com.

Forward Looking Statement
This press release may contain certain forward-looking statements, especially on the Company's progress of its phase 2-3 clinical trial and cash runway. Although the Company believes its expectations are based on reasonable assumptions, all statements other than statements of historical fact included in this press release about future events are subject to (i) change without notice, (ii) factors beyond the Company's control, (iii) clinical trial results, (iv) increased manufacturing costs and (v) potential claims on its products. These statements may include, without limitation, any statements preceded by, followed by or including words such as "target," "believe," "expect," "aim," "intend," "may," "anticipate," "estimate," "plan," "objective", "project," "will," "can have," "likely," "should," "would," "could" and other words and terms of similar meaning or the negative thereof. Forward-looking statements are subject to inherent risks and uncertainties beyond the Company's control that could cause the Company's actual results, performance or achievements to be materially different from the expected results, performance or achievements expressed or implied by such forward-looking statements. A further list and description of these risks, uncertainties and other risks can be found in the Company's regulatory filings with the French Autorité des Marchés Financiers, including in the 2019 registration document (Document de référence), registered with the French Markets Authorities on April 30, 2020, under number D.20-0427, and future filings and reports by the Company. Furthermore, these forward-looking statements are only as of the date of this press release. Readers are cautioned not to place undue reliance on these forward-looking statements. Except as required by law, the Company assumes no obligation to update these forward-looking statements publicly, or to update the reasons actual results could differ materially from those anticipated in the forward-looking statements, even if new information becomes available in the future. If the Company updates one or more forward-looking statements, no inference should be drawn that it will or will not make additional updates with respect to those or other forward-looking statements.

This press release has been prepared in both French and English. In the event of any differences between the two texts, the French language version shall supersede.