A new ciprofibrate calcium salt with improved solubility and intrinsic dissolution rate.
BORGES, Bruno Arantes; REIS, Kassius de Souza; PINTO, Camila Batista; ELLENA, Javier; DORIGUETTO, Antônio Carlos; BONFILIO, Rudy.
BORGES, Bruno Arantes; REIS, Kassius de Souza; PINTO, Camila Batista; ELLENA, Javier; DORIGUETTO, Antônio Carlos; BONFILIO, Rudy.
Abstract: Ciprofibrate (CIP) is an active pharmaceutical ingredient (API) classified as class II on the basis of biopharmaceutical classification system (BCS), what indicates that it has low solubility in aqueous solvents. The use of API salts has attracted attention due to their improvements in solubility, tolerability, higher rate and extent of absorption, and faster onset of the therapeutic effect. In this work, a new crystalline CIP monohydrated calcium salt (Ca(CIP)2.H2O) was successfully obtained and its crystal structure determined by single crystal X-ray diffraction analysis (SCXRD). Additionally, Ca(CIP)2.H2O was widely characterized by powder X-ray diffraction (PXRD), Fourier-transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA) and submitted to solubility, intrinsic dissolution and accelerated stability studies. Ca(CIP)2.H2O exhibited higher solubility and dissolution rate than CIP-free form and was stable up to 6 months at 40 °C (75 %RH). Therefore, Ca(CIP)2.H2O may be a viable alternative for use in solid dosage forms.
@article={003220878,author = {BORGES, Bruno Arantes; REIS, Kassius de Souza; PINTO, Camila Batista; ELLENA, Javier; DORIGUETTO, Antônio Carlos; BONFILIO, Rudy.},title={A new ciprofibrate calcium salt with improved solubility and intrinsic dissolution rate},journal={Journal of Pharmaceutical Sciences},note={v. 113, n. 11, p. 3297-3303 + supplementary materials},year={2024}}