scholarly journals Bioequivalence Study of Two Oral-Capsule Formulations of Omeprazole 20 mg in Combination with Sodium Bicarbonate in Healthy Mexican Adult Volunteers

Author(s):  
Rosete-Reyes A ◽  
Mendoza-Tamayo G ◽  
González-Bañuelos J ◽  
López-Bojórquez E ◽  
Burke-Fraga V ◽  
...  
Author(s):  
Rosete-Reyes A ◽  
Mendoza-Tamayo G ◽  
López-Bojórquez E ◽  
Burke-Fraga V ◽  
González-de la Parra M

2017 ◽  
Vol 34 (9) ◽  
pp. 2071-2082 ◽  
Author(s):  
Lin Pan ◽  
Paula Belloni ◽  
Han Ting Ding ◽  
Jianshuang Wang ◽  
Christopher M. Rubino ◽  
...  

2019 ◽  
Vol 91 ◽  
pp. 11-16
Author(s):  
Somruedee Chatsiricharoenkul ◽  
Yanisorn Nanchaipruek ◽  
Patcharaporn Manopinives ◽  
Suparat Atakulreka ◽  
Suvimol Niyomnaitham

2019 ◽  
Vol 6 (Supplement_2) ◽  
pp. S761-S761
Author(s):  
Stuart Mudge ◽  
Phoebe Lewis ◽  
Bruce P Burnett

Abstract Background Conventional itraconazole (CI) absorption from capsules even under fed conditions is suboptimal (~55%), let alone when fasted. SUBA-itraconazole (SI) is ~1.8x’s more bioavailable than CI at steady-state in a fed condition. There are, however, no data comparing these formulations under a fasted state. A single-dose PK study was performed comparing bioavailability of 65mg SI to 100mg CI under fasted or fed conditions. Methods This was an open-label, single-dose, randomized, four-period, four-treatment, four-sequence, crossover bioequivalence study under fasted and fed conditions in healthy adults. Subjects were administered a single dose of SI (1 × 65 mg) and CI (1 × 100 mg). Under fasted condition, subjects were administered SI or CI following an overnight fast of at least 10 hours. Subjects under fed condition were administered SI or CI after 30 minutes of consuming a standardized high fat breakfast preceded by an overnight fast of at least 10 hours. After dosing, all subjects fasted for at least 4 hours post-dose in all periods. Blood samples were collected prior to dosing and then from 1 to 120 hours. Analysis of itraconazole (IZ) and hydoxyitraconazole (HIZ) serum levels was by least-squares-geometric means of PK parameters. Results Under fasted condition, Cmax and AUCtau of IZ for SI were substantially higher compared with CI (Table, Figure 1). Under fed conditions, however, the Cmax and AUCtau of IZ for SI was 20% and 10% lower, respectively (table, Figure 2). Similar results were found for HIZ. The Tmax for IZ and HIZ of SI and CI were similar under a fasted condition but extended by over 2 hours for SI vs. CI under fed conditions. Study drugs were well-tolerated under fasted and fed conditions. All TEAEs were mild and resolved at the end of the study. Fifty of 52 subjects enrolled completed the study. Two subjects did not complete the study due to not being able to finish a high fat meal and noncompliance. No SAEs were reported. Conclusion Total and peak IZ/HIZ exposure was substantially higher for SI under fasted conditions compared with CI, but slightly lower under fed conditions with similar safety profiles. This study demonstrates the unique nature of the SI formulation compared with CI under fasted conditions and may lead to less variability if patients are not adherent to dietary requirements when taking itraconazole. Disclosures All authors: No reported disclosures.


Author(s):  
Murgan Panchatcharam ◽  
Sasidharan M. ◽  
Sakthimanikandhan .

Background: Lamotrigine is an anti-epileptic medicine used to treat epilepsy and bipolar disorder. The mechanism of action is to block voltage activated sodium channels. The aim of this study was to evaluate the bioequivalence of 2 oral formulations of lamotrigine 25 mg in healthy volunteers.Methods: A single-dose, two-period, randomized crossover study design in - healthy Indian adult volunteers was conducted at Amaris Clinical, a division of Caplin Point Laboratories Ltd., Chennai. A validated high performance liquid chromatography in conjunction with mass spectrometry was used. Lamotrigine concentration in plasma. Adverse events were determined by measuring vital functions after dosing. A total of 24 subjects were included.Results: The mean and 90% confidence intervals of the test / reference ratios for these parameters were as follows: The mean Cmax and Tmax of the test were 758.606 (157.453) ng / ml and 1.17 (0.50-5.00) hours, respectively. The mean Cmax and Tmax of the reference were 775.993 (151.654) ng / ml or 0.88 (0.25-4.00) hours. The mean AUC0-72 was 24142. 031±3641.691 (ng.hr/mL) for the test formulation and 24202.099±3742.957 (ng. h / ml) for the reference formulation. The mean test / reference ratios for Cmax and AUC0-72 were 97.92 and 99.82 respectively. The 90% parametric CIs for Cmax and AUC0-72 were 90.17-105.68% or 97.87-101.81%.Conclusions: The 90% confidence intervals ranged from 80-125% and it was concluded that the test product was bioequivalent to the reference product in these healthy adult male volunteers. 


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