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Note 10 - Commitments | 12 Months Ended
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Dec. 31, 2025
Notes to Financial Statements |
Leases And Commitments Disclosure [Text Block] | 10. Commitments Other Commitments The Company conducts its product research and development programs through a combination of internal and collaborative programs that include, among others, arrangements with universities, contract research organizations and clinical research sites. The Company has contractual arrangements with these organizations that are cancelable. The Company’s obligations under these contracts are largely based on services performed. The Company also had non-cancellable commitments for the manufacture of simufilam's active pharmaceutical ingredient totaling approximately $0.8 million recorded in prepaid expenses and other current assets at December 31, 2025 compared to $1.2 million at December 31, 2024. The Company is dependent on contract development and manufacturing organizations for the manufacture of all our materials for clinical studies. On February 26, 2025, the Company entered into a License Agreement (the “License Agreement”) with Yale University (“Yale”) pursuant to which the Company was granted exclusive worldwide rights, with rights to sublicense, to Yale’s interest in certain patent and other intellectual property rights that could be useful or necessary to the development and commercialization of simufilam for the treatment of Tuberous Sclerosis Complex (TSC)-related epilepsy and other potential indications. Pursuant to the License Agreement, the Company has agreed to use reasonable commercial efforts to implement a plan that it has designed for such development and commercialization. In exchange for the rights acquired pursuant to the License Agreement, the Company paid Yale (i) a nominal upfront license fee, and agreed to pay (ii) payments upon the achievement of specified clinical, regulatory and commercial milestones, totaling up to $4.5 million and (iii) upon transfer to a third party in connection with a regulatory priority review voucher, if issued, a low-to-mid double digit percentage of any consideration received for such transfer. The Company also agreed to pay Yale tiered royalties, ranging from a low- to mid- single digit percentage, on aggregate net sales of licensed products, subject to tiered minimum annual royalty payments ranging from the low- to mid- hundreds of thousands of dollars. There were no License Agreement payments made, other than the nominal upfront license fee, during the year ended December 31, 2025. Unless earlier terminated, the License Agreement will continue on a country-by-country basis until the later of (i) the date on which the last valid claim of the license patents expires or otherwise lapses, (ii) the end of any government or regulatory exclusivity period, and (iii) 10 years following the date of first sale of licensed product in such country.

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