Simultaneous Overcoming Approach for Poor Wettability and Low Stability in Stomach by Simple Methods; Formulation...

Area of Science:

• Pharmaceutical Sciences
• Drug Delivery
• Medicinal Chemistry

Background:

• S-309309, an anti-obesity drug, exhibits poor wettability and degrades under acidic conditions.
• The degradation product, compound 8, increases over time, posing a stability challenge.
• Addressing these issues is crucial for the drug's therapeutic efficacy.

Purpose of the Study:

• To enhance the wettability of S-309309.
• To suppress the formation of the degradation product under acidic conditions.
• To improve the overall drug properties for oral administration.

Main Methods:

• Mixing S-309309 with water-soluble polymers to improve wettability.
• Encapsulating S-309309 to assess the suppression of degradation.
• Evaluating dissolution behavior and degradation product formation under simulated acidic conditions.

Main Results:

• Mixing with water-soluble polymers significantly increased S-309309 wettability and dissolution concentration.
• Encapsulation effectively suppressed the increase of the degradation product under acidic conditions.
• These formulation strategies demonstrated enhanced drug properties.

Conclusions:

• Water-soluble polymers and encapsulation are effective strategies to overcome S-309309's poor wettability and acid instability.
• These methods suggest improved dissolution and stability for oral dosing.
• The findings support the development of S-309309 as a viable anti-obesity therapeutic.