Company: MDCXW
Filing Date: 2025-09-29
Form Type: S-1
Source: 0001062993-25-015841
Chunk: 126

Company: Medicus Pharma Ltd.
Filing Date: 2025-09-29
Form: S-1
Chunk 126
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 presented for treatment; and if they previously demonstrated sensitivity to doxorubicin or carboxymethyl cellulose. Other reasons for exclusion included current active malignancies, metastatic disease, in other regions; pregnancy; and any other reason that the investigator deemed as prejudicial to the outcome of the study.

The investigational product is chemotherapeutic agent, doxorubicin (25 µg, 50 µg, 100 µg, or 200 µg) delivered to the basal layer of skin by a novel delivery system, a MNA. The delivery system is a square array 15 x 15 mm in dimension edge to edge. The dissolvable array of 400 microneedles is in a 13 x 13 mm area. The microneedles are 750 microns in length. Each MNA patch delivers 9.6 µL of drug product into the peri-epidermal space.

Conclusions: The Phase 1 study was designed as an open-label dose escalation trial of D-MNA in participants with BCC (subtype: superficial or nodular). The study followed a traditional 3+3 dose escalation design with 4 dose groups plus placebo to define a MTD by evaluating DLTs. Treatments consisted of one application administered weekly, three times over a two-week period. The goal of the dose escalation was to determine the MTD and assess lesion responses in the different dose groups to inform a decision on the doses to be tested in a subsequent Phase 2 study. Of the 13 subjects enrolled, all 13 subjects completed the study and were included in all analysis populations; no subjects discontinued the study prematurely. Most subjects (8 of 13) were male, all subjects were White, and all but one subject were Non-Hispanic/Latino. Age range across the 13 subjects was 31 to 94 years.

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The primary study endpoint was the assessment of DLT through Visit 4 (21 days) as defined using the LSR grading scale. No subjects reached DLT at any treatment assessment.

At screening, both the site and central reader were in agreement for 7 of 13 subjects (5 were considered nodular and 2 superficial at screening); however, for 6 subjects, the site and central reader assessments differed. For one subject (01-014), the Central Reader found no BCC present in the screening biopsy. Consultants reviewing the study results stated that multiple reasons could possibly be attributable,