Obsidian Therapeutics
  • About Us
    • Overview
    • Our Vision
    • Management Team
    • Board of Directors
    • Scientific Advisory Board
    • Investors
  • Our Science
    • Overview
    • Our Pipeline
    • cytoDRiVE® PLATFORM
    • Publications
    • Partners
  • Our Lead Clinical Program
    • Overview
    • For Patients
    • Expanded Access Policy
    • OBX-115
  • News
  • Join Our Team
    • Overview
    • Our Culture
    • Testimonials
    • Benefits
    • Job Postings
  • Contact

News

Back to News
Previous
Next
July 9, 2024

Obsidian Therapeutics Announces FDA Fast Track Designation for OBX-115 for the Treatment of Advanced Melanoma

CAMBRIDGE, Mass., July 9, 2024 – Obsidian Therapeutics, Inc., a clinical-stage biotechnology company pioneering engineered cell and gene therapies, today announced that the U.S. Food and Drug Administration (FDA) has granted Fast Track Designation to OBX-115, a novel engineered tumor-derived autologous T cell immunotherapy (tumor-infiltrating lymphocyte [TIL] cell therapy) armored with pharmacologically regulatable membrane-bound IL15 (mbIL15), for the treatment of patients with metastatic or locally advanced melanoma that is refractory to or has relapsed after PD-1/PD-L1–based immune checkpoint inhibitors (ICI).

“FDA Fast Track Designation underscores the ongoing unmet need for patients with melanoma that has progressed on or after ICI therapy, agnostic of mutational status, and that OBX-115 may have the potential to address that unmet need,” said Madan Jagasia, M.D., Chief Executive Officer of Obsidian.  “OBX-115 is poised to be a transformative treatment option due to its patient-centric focus, including compatibility with core needle biopsy tumor tissue procurement and positively differentiated safety and tolerability profile relative to non-engineered TIL cell therapy. We are highly encouraged by the most recent safety and efficacy data presented at the 2024 American Society of Clinical Oncology Meeting. With this designation, we look forward to continued collaborative interaction with the FDA as we advance OBX-115 clinical development in the broad post-ICI setting.”

Fast Track Designation is intended to facilitate development and expedite the review of new drug candidates that address serious and life-threatening conditions so that an approved product can reach the market expeditiously. Features of Fast Track Designation include frequent interactions with the FDA review team, and if relevant criteria are met, eligibility for Priority Review and Rolling Review.

OBX-115 is being investigated in a multicenter trial in advanced or metastatic melanoma and non-small cell lung cancer (NSCLC) (NCT06060613). Enrollment has been completed for the first-in-human, single-center study of OBX-115 (NCT05470283).

 

About OBX-115

Obsidian’s lead investigational cytoTIL15™ program, OBX-115, is a novel engineered tumor-derived autologous T cell immunotherapy (tumor-infiltrating lymphocyte [TIL] cell therapy) armored with pharmacologically regulatable membrane-bound IL15 (mbIL15). OBX-115 has the potential to become a meaningful therapeutic option for patients with advanced or metastatic melanoma and other solid tumors by leveraging the expected benefits of mbIL15 and Obsidian’s proprietary, differentiated manufacturing process to enhance persistence, antitumor activity, and clinical safety of TIL cell therapy. OBX-115 is being investigated in two ongoing clinical trials in advanced or metastatic melanoma and non-small cell lung cancer (NSCLC) (NCT05470283 and NCT06060613).

 

About Obsidian Therapeutics

Obsidian Therapeutics, Inc. is a clinical-stage biotechnology company pioneering engineered cell and gene therapies to deliver transformative outcomes for patients with intractable diseases. Obsidian’s proprietary cytoDRiVE® technology is designed to precisely regulate the timing and level of protein function by using FDA-approved small-molecule drugs. Obsidian is headquartered in Cambridge, MA. The Company has collaborations with Bristol Myers Squibb and Vertex Pharmaceuticals. For more information, please visit www.obsidiantx.com and follow us on LinkedIn.

 

Media:

david.rosen@argotpartners.com

212-600-1902

Back to News
Obsidian Therapeutics
  • About Us
  • Our Science
  • Our Lead Clinical Program
  • News
  • Join Our Team
  • Contact

Privacy // Terms of Use
© 2025 Obsidian Therapeutics, Inc. All Rights Reserved.

Our programs, including OBX-115, and cytoDRIVE® Platform are investigational and have not been approved by the FDA or any other regulatory agency.

Our Pipeline Job Postings
We use cookies on our website to optimize your experience, analyze site usage, and to assist with our marketing activities. By continuing to navigate our website, you consent to the use of cookies, our privacy policy and terms of use.
Accept
Manage consent

Privacy Overview

This website uses cookies to improve your experience while you navigate through the website. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may affect your browsing experience.
Necessary
Always Enabled
Necessary cookies are absolutely essential for the website to function properly. These cookies ensure basic functionalities and security features of the website, anonymously.
CookieDurationDescription
cookielawinfo-checkbox-analytics11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Analytics".
cookielawinfo-checkbox-functional11 monthsThe cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional".
cookielawinfo-checkbox-necessary11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary".
cookielawinfo-checkbox-others11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other.
cookielawinfo-checkbox-performance11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Performance".
viewed_cookie_policy11 monthsThe cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. It does not store any personal data.
Functional
Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features.
Performance
Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors.
Analytics
Analytical cookies are used to understand how visitors interact with the website. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc.
Advertisement
Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. These cookies track visitors across websites and collect information to provide customized ads.
Others
Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet.
SAVE & ACCEPT