Company: MDCXW
Filing Date: 2025-09-19
Form Type: DRS
Source: 0001062993-25-015719
Chunk: 122

Company: Medicus Pharma Ltd.
Filing Date: 2025-09-19
Form: DRS
Chunk 122
---
-75 micrograms/m2 and a typical adult cancer patient is 1.73 m2, resulting in a dose of 104 to 130 milligrams (approximately 4,000 times higher than the 25 µg delivered by the MNA).

MNAs delivering doxorubicin also demonstrated efficacy in a murine squamous cell carcinoma model, with 100% survival in MNA-Doxorubicin group versus 0% survival in MNA-Blank group (Friedman B, et al, 2017). Survival advantage persisted with 40% of MNA-Doxorubicin-treated mice alive at 40 days post-inoculation. As a result, we believe BCC is a rational target for chemo-immunotherapy using D-MNAs.

The University of Pittsburgh research under IND #122448 was conducted on mice in groups ranging in size from six mice to 45 mice using the same D-MNAs that we are developing. These studies were not powered to demonstrate statistical significance.

Pharmacokinetics

Pharmacokinetics and Product Metabolism in Non-Human Animals

As shown by the data and Figure 10 below (courtesy of Louis Falo, M.D., Ph.D.), blood samples were collected from mice intravenously injected with 100 µg or 200 µg of doxorubicin or from mice receiving 200 µg D-MNA, after 5, 20, and 60 minutes. Doxorubicin content of the blood samples was measured by spectrofluorimetry and quantitated against a calibration curve. No detectable quantities of doxorubicin were observed in the mice receiving the 200 µg D-MNA; doxorubicin levels were detectable in the intravenously injected mice.

<div align='center'>80

CONFIDENTIAL TREATMENT REQUESTED BY MEDICUS PHARMA LTD.PURSUANT TO 17 C.F.R. SECTION 200.83

Figure 11.</div>

In addition, Medicus obtained pharmacokinetic data during the Yucatan minipig local tolerance study (Study No. S15055). A total of 30 minipigs (15 males and 15 females) were randomized into five treatment groups. Groups of 3 males and 3 females were treated with a blank control array (Group 1), and three dose levels of D-MNA at 25, 50 and 200 µg/dose of doxorubicin