On May 22, 2019, the Company and Olaregen amended the Stock Purchase Agreement and Promissory Note to extend the due date of the remaining balance of the second payment and the full balance of the third and fourth guaranteed payments amounting to $4,361,500 on or before June 30, 2019.

On May 22, 2019, the Company and Regentys amended the Stock Purchase Agreement and Promissory Note to extend the due date of the remaining balance of the first tranche of and the full balance of the second guaranteed payments amounting to $4,800,000 on or before June 30, 2019

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