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Prilling of API/fatty acid suspensions : screening of additives for drug release modification

Journal Contribution - Journal Article

Current study screened additives which could modify the drug release from prills made of an active pharmaceutical ingredient/fatty acid (API/FA) suspension, without negatively influencing the processability and/or stability of the formulation. Therefore, 11 additives (i.e. emulsifiers, pore-formers and FA-based lubricants) were added in a 20% concentration to a paracetamol/behenic acid formulation. Two additives, Kolliphor (R) P338 and P407 provided complete drug release in less than 1 h, as their thermoreversible gel formation resulted in a disintegration of the prills. Lower Kolliphor (R) P338 or P407 concentrations (2.5-10%) resulted in a complete but slower drug release in 24 h as the prills no longer disintegrated and the release mechanism was dominated by pore-formation. Prills with a robust drug release profile (i.e. independent of pH and surfactant concentration of the dissolution medium) were obtained after the addition of >= 5% Kolliphor (R) P338 or P407 to the FA-based formulation. Based on a 6-month stability study, it was concluded that Kolliphor (R) P407 was a suitable additive to modify the drug release profile of API/FA suspension-based prills when formulations were stored below 25 degrees C at low relative humidity.
Journal: INTERNATIONAL JOURNAL OF PHARMACEUTICS
ISSN: 0378-5173
Volume: 576
Publication year:2020
Accessibility:Closed