XML 28 R20.htm IDEA: XBRL DOCUMENT
v3.24.3

License Agreements | 9 Months Ended
--- | ---
Sep. 30, 2024
License Agreement [Abstract] |
License Agreements | 11. License Agreements Biocept License Agreement On September 7, 2023, the Company entered into a Non-Exclusive License and Services Agreement with Biocept, pursuant to which Biocept granted the Company a non-exclusive license to use the CNSide Test. In exchange for the license, the Company issued to Biocept 53,381 unregistered shares of common stock, the fair value of which was $75,000. On October 16, 2023, Biocept filed a voluntary petition for relief under the provisions of Chapter 7 of Title 11 of the United States Bankruptcy Code. See Note 8, the Biocept Asset Acquisitions, for further details. University of Texas Health Science Center at San Antonio (“UTHSCSA”) License Agreement On December 31, 2021, the Company entered into a Patent and Know-How License Agreement with UTHSCSA, pursuant to which UTHSCSA granted the Company an irrevocable, perpetual, exclusive, fully paid-up license, with the right to sublicense and to make, develop, commercialize and otherwise exploit certain patents, know-how and technology related to the development of biodegradable alginate microspheres containing nanoliposomes loaded with imaging and/or therapeutic payloads. NanoTx License Agreement On March 29, 2020, the Company and NanoTx, Corp. (“NanoTx”) entered into a Patent and Know-How License Agreement, pursuant to which NanoTx granted the Company an irrevocable, perpetual, exclusive, fully paid-up license, with the right to sublicense and to make, develop, commercialize and otherwise exploit certain patents, know-how and technology related to the development of radiolabeled nanoliposomes. The transaction terms included an upfront payment of $0.4 million in cash and $0.3 million in the Company’s shares of common stock. The transaction terms also included success-based milestone and royalty payments contingent on key clinical, regulatory and sales milestones, as well as the requirement to pay 15% of any non-dilutive monetary awards or grants received from external agencies to support product development of the nanoliposome encapsulated BMEDA-chelated radioisotope, which includes grants from CPRIT. As of September 30, 2024, the Company accrued $1.0 million of payments due to NanoTx as a result of the CPRIT grant received (see Note 9, Grant Revenue, for further details).

X
- Definition License agreement abstract. + References No definition available. + Details
Name: | pstv_LicenseAgreementAbstract
Namespace Prefix: | pstv_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of accounting policy for license agreement. + References No definition available. + Details
Name: | pstv_LicenseAgreementDisclosureTextBlock
Namespace Prefix: | pstv_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration