
Year
DEALS // DEV.
Country
Therapeutic Area
Study Phase
Deal Type
Product Type
Dosage Form
Lead Product
Target

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Lead Product(s) : Efarindodekin Alfa
Therapeutic Area : Oncology
Study Phase : Phase I/ Phase II
Sponsor : Gilead Sciences
Deal Size : $647.5 million
Deal Type : Licensing Agreement
Xilio Therapeutics Announces Initiation of Phase 2 Trial for Efarindodekin Alfa (XTX301)
Details : Gilead has an exclusive global license to develop and commercialize XTX301 (efarindodekin alfa), Xilio’s tumor-activated IL-12, currently in Phase I trials for neoplasms treatment.
Product Name : Undisclosed
Product Type : Protein
Upfront Cash : $43.5 million
September 09, 2025
Lead Product(s) : Efarindodekin Alfa
Therapeutic Area : Oncology
Highest Development Status : Phase I/ Phase II
Sponsor : Gilead Sciences
Deal Size : $647.5 million
Deal Type : Licensing Agreement

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Lead Product(s) : Vilastobart,Atezolizumab
Therapeutic Area : Oncology
Study Phase : Phase I/ Phase II
Sponsor : Leerink Partners
Deal Size : $50.0 million
Deal Type : Public Offering
Xilio Therapeutics Announces Closing of $50.0 Million Public Offering
Details : The net proceeds from the offering will be used to advance the clinical development of XTX10 (vilastobart), which is being evaluated for the treatment of mss colorectal cancer.
Product Name : Undisclosed
Product Type : Antibody, Unconjugated
Upfront Cash : Undisclosed
June 05, 2025
Lead Product(s) : Vilastobart,Atezolizumab
Therapeutic Area : Oncology
Highest Development Status : Phase I/ Phase II
Sponsor : Leerink Partners
Deal Size : $50.0 million
Deal Type : Public Offering

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Lead Product(s) : Vilastobart,Atezolizumab
Therapeutic Area : Oncology
Study Phase : Phase I/ Phase II
Sponsor : Leerink Partners
Deal Size : $50.0 million
Deal Type : Public Offering
Xilio Therapeutics Announces Pricing of $50.0 Million Public Offering
Details : The net proceeds from the offering will be used to advance the clinical development of XTX10 (vilastobart), which is being evaluated for the treatment of mss colorectal cancer.
Product Name : Undisclosed
Product Type : Antibody, Unconjugated
Upfront Cash : Undisclosed
June 02, 2025
Lead Product(s) : Vilastobart,Atezolizumab
Therapeutic Area : Oncology
Highest Development Status : Phase I/ Phase II
Sponsor : Leerink Partners
Deal Size : $50.0 million
Deal Type : Public Offering

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Lead Product(s) : Vilastobart,Atezolizumab
Therapeutic Area : Oncology
Study Phase : Phase I/ Phase II
Sponsor : Leerink Partners
Deal Size : Undisclosed
Deal Type : Public Offering
Xilio Therapeutics Announces Proposed Public Offering
Details : The net proceeds from the offering will be used to advance the clinical development of XTX10 (vilastobart), which is being evaluated for the treatment of mss colorectal cancer.
Product Name : Undisclosed
Product Type : Antibody, Unconjugated
Upfront Cash : Undisclosed
June 02, 2025
Lead Product(s) : Vilastobart,Atezolizumab
Therapeutic Area : Oncology
Highest Development Status : Phase I/ Phase II
Sponsor : Leerink Partners
Deal Size : Undisclosed
Deal Type : Public Offering

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Lead Product(s) : Undisclosed
Therapeutic Area : Oncology
Study Phase : Discovery Platform
Sponsor : AbbVie Inc
Deal Size : $2,152.0 million
Deal Type : Collaboration
AbbVie, Xilio Partner to Develop Tumor-Activated Immunotherapies
Details : The collaboration will combine AbbVie's oncology expertise and Xilio's proprietary tumor-activation technology to develop novel immunotherapies, including masked T-cell engagers.
Product Name : Undisclosed
Product Type : Undisclosed
Upfront Cash : $52.0 million
February 12, 2025
Lead Product(s) : Undisclosed
Therapeutic Area : Oncology
Highest Development Status : Discovery Platform
Sponsor : AbbVie Inc
Deal Size : $2,152.0 million
Deal Type : Collaboration

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Lead Product(s) : Vilastobart,Atezolizumab
Therapeutic Area : Oncology
Study Phase : Phase I/ Phase II
Sponsor : Undisclosed
Deal Size : Inapplicable
Deal Type : Inapplicable
Xilio Therapeutics Announces Phase 2 Data for Vilastobart in Colorectal Cancer
Details : XTX101 (vilastobart) is an antibody infusion therapy inhibiting CTLA-4, is being investigated for the treatment of microsatellite stable colorectal cancer in combination with Atezolizumab.
Product Name : Undisclosed
Product Type : Antibody, Unconjugated
Upfront Cash : Inapplicable
January 21, 2025
Lead Product(s) : Vilastobart,Atezolizumab
Therapeutic Area : Oncology
Highest Development Status : Phase I/ Phase II
Sponsor : Undisclosed
Deal Size : Inapplicable
Deal Type : Inapplicable

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Lead Product(s) : Vilastobart,Atezolizumab
Therapeutic Area : Oncology
Study Phase : Phase I/ Phase II
Sponsor : Undisclosed
Deal Size : Inapplicable
Deal Type : Inapplicable
Xilio Therapeutics Announces Vilastobart Data in Advanced Solid Tumors
Details : XTX101 is an antibody infusion therapy inhibiting CTLA-4, is being investigated for the treatment of microsatellite stable colorectal cancer in combination with Atezolizumab.
Product Name : Undisclosed
Product Type : Antibody, Unconjugated
Upfront Cash : Inapplicable
November 07, 2024
Lead Product(s) : Vilastobart,Atezolizumab
Therapeutic Area : Oncology
Highest Development Status : Phase I/ Phase II
Sponsor : Undisclosed
Deal Size : Inapplicable
Deal Type : Inapplicable

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Lead Product(s) : XTX301
Therapeutic Area : Oncology
Study Phase : Phase I
Sponsor : Gilead Sciences
Deal Size : $647.5 million
Deal Type : Licensing Agreement
Gilead and Xilio Announce Exclusive License Agreement for Tumor-Activated IL-12 Program
Details : Gilead has an exclusive global license to develop and commercialize XTX301, Xilio’s tumor-activated IL-12, currently in Phase I trials for neoplasms treatment.
Product Name : Undisclosed
Product Type : Miscellaneous
Upfront Cash : $43.5 million
March 28, 2024
Lead Product(s) : XTX301
Therapeutic Area : Oncology
Highest Development Status : Phase I
Sponsor : Gilead Sciences
Deal Size : $647.5 million
Deal Type : Licensing Agreement

Xilio Reports Phase 1 Safety Data for XTX301, Validating Tumor-Activated Therapies
Details : XTX301 is an investigational tumor-activated IL-12 designed to potently stimulate anti-tumor immunity. It is under phase 1 clinical development for the treatment of advanced solid tumor.
Product Name : Undisclosed
Product Type : Miscellaneous
Upfront Cash : Inapplicable
January 08, 2024

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Lead Product(s) : Vilastobart,Atezolizumab
Therapeutic Area : Oncology
Study Phase : Phase I/ Phase II
Sponsor : Undisclosed
Deal Size : Inapplicable
Deal Type : Inapplicable
Details : XTX101 is an antibody infusion therapy inhibiting CTLA-4, is being investigated for the treatment of microsatellite stable colorectal cancer in combination with Atezolizumab.
Product Name : Undisclosed
Product Type : Antibody, Unconjugated
Upfront Cash : Inapplicable
December 07, 2023
Lead Product(s) : Vilastobart,Atezolizumab
Therapeutic Area : Oncology
Highest Development Status : Phase I/ Phase II
Sponsor : Undisclosed
Deal Size : Inapplicable
Deal Type : Inapplicable
