Company: MDCXW
Filing Date: 2025-04-04
Form Type: POS AM
Source: 0001062993-25-007073
Chunk: 109

Company: Medicus Pharma Ltd.
Filing Date: 2025-04-04
Form: POS AM
Chunk 109
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 ºF/37.3 ºC to 103.9 ºF/39.9 ºC) within the observation period up to 24 hours, except for two measurements at 8 hour respectively for one vehicle animal (104.1°F /40.1°C) and one high dose animal (104.9°F /40.5°C). These two measurements were slightly above the normal range and considered an incidental finding. For the reference control (Group 5), animal body temperatures were above normal (104.8-107.7°F/40.4-42.1°C) for all animals during the first 4 hours after intravenously administered lipopolysaccharide (LPS, 0.01μg/ml) at 0.04 μg/kg.

Dermal Irritation Phase: Groups 1-4, all animals were dosed topically via 2 filter paper patches (2.5 cm x 2.5 cm) on naïve dorsal skin sites with a saline control patch (saturated with ~0.2 ml saline) and a 0.3 ml of vehicle (Group 1) or test formulation (Groups 2-4, 50, 100 or 200 μg/site) instilled patch. Prior to dosing, skin of all dose sites was abraded using adhesive tape. The patches were removed after 30 minutes. For the reference control (Group 5) animals, 2 saline control and 2 reference control patches (~0.2 ml/patch) were applied to the dose sites for 4 hours. Dose site skin was assessed at approximately 1, 4, 24 and 48 hours following patch removal for all groups.

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All animals in groups 1 - 4 exhibited minimal-to-no dose-related erythema or edema. If erythema and edema were present, they were generally mild, with only a few observations of well-defined erythema. Severe skin irritation was observed on all the test sites (SLS) in group 5. These results demonstrate that the test article did not cause any pyrogenicity after subcutaneous injection or topical application at doses up to 200 μg/site.

14-Day Toxicity Study in the Yucatan Minipig

The objective of this study (SRC Study No. S15055) was to evaluate the local tissue tolerability, potential toxicity, skin irritation