Company: MDCXW
Filing Date: 2025-11-19
Form Type: S-1
Source: 0001062993-25-016962
Chunk: 127

Company: Medicus Pharma Ltd.
Filing Date: 2025-11-19
Form: S-1
Chunk 127
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 compound doxorubicin delivered by the D-MNA.

In addition the clinical design also assessed the pre-established secondary efficacy endpoint described below.

Subject populations included adult males and females, 18+ years in general good health as assessed by the study's principal investigator. BCC (subtype: superficial or nodular) had to confirmed histologically by diagnostic shave biopsy at the screening visit. If previously confirmed, participants could only have diagnosed BCC via shave biopsy within 6 months of first study treatment. The disease had to be primary BCC (i.e., no previous treatment), and the lesion size was required to = 64 mm2 or 8 x 8 mm and = 169 mm2 or 13 x 13 mm, i.e., the entire lesion must be covered by 13 x 13 mm area of the array containing the microneedles. Laboratory values had to be within normal ranges.

Subjects were excluded from participation in this study if they had evidence of clinically significant, unstable medical conditions as assessed by the principal investigator; if they had an excisional biopsy performed on the lesion to be treated in this study; if they had recent therapy(ies) to the BCC treatment area; if they had recurrent BCC (previously treated) at the site 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