Note 5. Prepaid Expenses

At September 30, 2025, prepaid expenses were $223,517, and consisted primarily of prepaid insurance of $82,926, prepaid costs of issuance of $17,499, and an advance deposit with our clinical trial management partner of $79,038. The balance also included $44,054 in other prepaid expenses related primarily to professional services and annual subscriptions. At December 31, 2024, prepaid expenses consisted of $66,128 of prepaid operating expenses, $13,864 in pre-paid testing services related to our clinical trial, and $267,684 of deposits with a third party CRO for our current clinical trial.