Company: MDCXW
Filing Date: 2025-11-19
Form Type: S-1
Source: 0001062993-25-016962
Chunk: 129

Company: Medicus Pharma Ltd.
Filing Date: 2025-11-19
Form: S-1
Chunk 129
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. For the local/site assessment, complete lesion response was observed in one subject each for Placebo, D-MNA 25 µg, D-MNA 100 µg, and D-MNA 200 µg. For D-MNA 50 µg, no subjects were observed to have CR. For the central reader assessment, histopathologic assessment showed six subjects (one Placebo, two D-MNA 25 µg, one D-MNA 50 µg, one D-MNA 100 µg, and one D-MNA 200 µg) with no residual BCC. A "complete response" was considered the absence of BCC in the final excision at 4 weeks. For the Placebo subject (001-003) although it was assessed as a clinical responder according to the local site assessment, the local PI noted a new squamous cell carcinoma in situ (but no residual basal cell carcinoma) that was also confirmed as squamous cell carcinoma by the Central Reader assessment of the end of study excision. Consultants stated that it could be difficult to tell by skin examination alone if there was residual BCC, and that a minority of subjects do not have any residual BCC after having had a biopsy (possibly due in part to local post-procedural inflammatory response).

For the exploratory endpoint of quantification of doxorubicin released by the MNAs, doxorubicin delivery was confirmed, but across all dose groups it was observed that there was inconsistent doxorubicin deposition by the MNAs.

For the secondary endpoint of local tolerance of the MNA, at post-MNA application, assessments indicated that subjects had mild to moderate erythema restricted to the treatment area, at each visit with each dose level, including placebo. Flaking/scaling was minimal and isolated to the lesions. Crusting was generally absent or isolated. Swelling, vesiculation/pustulation, and erosion/ulceration were absent. Based on the proposed mechanism of action, some erythema evidencing an inflammatory reaction at the site of D-MNA application was to be expected.

For the secondary endpoint of pain assessment, for most subjects, no pain was noted. Some subjects experienced mild or moderate pain, generally at Visit 2 or Visit 3. At the Visit 4 End of Treatment assessment, no pain was noted for any subject.

Only two subjects reported a total of three adverse events ("AEs") in this study. All three AEs were considered mild in severity, and only one