scholarly journals BIOEQUIVALENCE EVALUATION OF ORALLY DISINTEGRATING STRIPS OF RIZATRIPTAN IN MALE VOLUNTEERS UNDER FASTING CONDITIONS

2021 ◽  
pp. 230-235
Author(s):  
NIDHI SAPKAL ◽  
ANWAR DAUD ◽  
MINAL BONDE ◽  
MANGESH GAWANDE ◽  
NILAMBARI GURAV
Keyword(s):  
Statistical Analysis ◽  
Plasma Concentrations ◽  
Bioequivalence Study ◽  
Pharmacokinetic Analysis ◽  
Pharmacokinetic Parameters ◽  
Healthy Male ◽  
Treatment Results ◽  
Open Label ◽  
Male Volunteers ◽  
Extent Of Absorption

Objective: A randomized, open-label, balanced, two-treatment, two-period, two-sequence, single-dose, crossover bioequivalence study comparing Rizatriptan 10 mg Orally Disintegrating Strips (ODS, test) with that of established Oral Lyophilisate Rizatriptan 10 mg, Maxalt-MLT® (reference) was conducted in 24 healthy male volunteers under fasting conditions. A single oral dose of 10 mg Rizatriptan was administrated to each volunteer. Methods: Plasma concentrations of Rizatriptan were determined by a validated LC-MS/MS bioanalytical method. The plasma concentrations of Rizatriptan were considered for statistical analysis and for establishing bioequivalence. Pharmacokinetic analysis was done by using the non-compartmental method. Pharmacokinetic parameters Cmax, AUC0→t, AUC 0→∞, t1/2, Tmax, and Ke1 were estimated for each subject and each treatment. Results: Ninety percent confidence intervals (90% CI) calculated for the ratio of AUC0→t, AUC0→∞, and Cmax values for the test and reference formulations were 96.91-110.30%, 96.24-109.07%, and 90.37-113.56%, respectively for Rizatriptan. The 90% CIs of AUC0→t, AUC0→∞, and Cmax values were totally within 80-125%. Conclusion: Based on a statistical analysis of the results, both formulations of Rizatriptan 10 mg, were found to be bioequivalent in terms of rate and extent of absorption under fasting conditions.

scholarly journals Randomized, Open-Label, Two-Way Crossover Study To Compare The Bioequivalence Of Two Formulations Of Esomeprazole In Healthy Male Volunteers

KYAMC Journal ◽  
2017 ◽  
Vol 4 (1) ◽  
pp. 326-330
Author(s):  
Uttam Kumar Sarker ◽  
Mir Misbahuddin ◽  
Md Shariful Hasan Ripon ◽  
Md Rabiul Islam
Keyword(s):  
Half Life ◽  
Plasma Concentrations ◽  
Bioequivalence Study ◽  
Relative Bioavailability ◽  
Hplc Method ◽  
Pharmacokinetic Parameters ◽  
Test Drug ◽  
Healthy Male ◽  
Open Label ◽  
Reference Drug

A crossover-randomized bioequivalence study of two oral formulations of esomeprazole (40 mg) capsules were carried out in 16 healthy male Bangladeshi volunteers. The test and reference formulations were PRONEX™ (Drug International Ltd, Bangladesh) and NEXIUM™ (AstraZeneca AB, Sweden), respectively. Each tablet was administered with 150 mL of water to subjects after overnight fasting on 2 treatment days separated by 1 week washout period. After dosing, serial blood samples were collected for a period of 24 hours. The plasma concentrations of esomeprazole were estimated using a validated HPLC method. The pharmacokinetic parameters Cmax, Tmax, AUC0g24h, t1/2, and Kel were determined. The mean (± SD) AUC0g24h for esomeprazole of test drug PRONEXTM for 16 volunteers was 1509 (± 546) ng.hr/mL whereas it was 1622 (± 589) ng.hr/mL for esomeprazole of NEXIUMTM. The relative bioavailability (PRONEXTM/NEXIUMTM ratio) was 93%. The Cmax, tmax, half-life of elimination (t1/2) and the rate of elimination (Kel) of esomeprazole of test drug were 1653 (± 706) ng/mL, 2.13 (± 0.81) hours, 2.00 (± 0.61) hour and 0.3465 respectively. The Cmax, tmax, half-life of elimination (t1/2) and the rate of elimination (Kel) of esomeprazole of reference drug were 1820 (± 877) ng/mL, 2.80 (± 0.67) hours, 2.14 (± 0.55) hour and 0.3238 respectively. The 90% CI for the test and reference drugs were found within the acceptance range of 80-125%. In conclusion, PRONEX™ is bioequivalent to NEXIUM ™ in terms of absorption.KYAMC Journal Vol. 4, No.-1, July 2013, Page 326-330

scholarly journals Pharmacokinetics of Liposomal Amphotericin B for Injection in Chinese Healthy Subjects Based on a Bioequivalence Study

2021 ◽  
Author(s):  
Xueyuan Zhang ◽  
Huanhuan Qi ◽  
Manman Wang ◽  
Yuhuan Ji ◽  
Chunlei Li ◽  
...  
Keyword(s):  
Amphotericin B ◽  
Liposomal Amphotericin ◽  
Geometric Mean ◽  
Plasma Concentrations ◽  
Bioequivalence Study ◽  
Liposomal Amphotericin B ◽  
Pharmacokinetic Parameters ◽  
Healthy Population ◽  
Open Label ◽  
Liposomal Form

Abstract Purpose: The aim of this study was to evaluate the pharmacokinetic characteristics and safety of Liposomal Amphotericin B for injection in healthy Chinese volunteers based on a pilot bioequivalence clinical trial between a generic formulation and Ambisome ® Methods: This randomized, two sequence, open label, single dose,two period crossover study was conducted in healthy volunteers at the dose of 2mg kg Blood samples were collected at pre defined time points up to 674 h after the start of the 2 h infusion. Plasma concentrations of total, unencapsulated and encapsulated amphotericin B were determined. Pharmacokinetic parameters were calculated using non compartmental model . The formulations were considered bioequivalent if the 90% confidence interval ls (CIs) of the geometric mean ratio of C max and AUC of both products for free and encapsulated amphotericin B were within80.00 1 25.00 for L n transformed data. Results and conclusion: All the 12subjects completed the two period study , no subjects withdrew the study. The plasma pharmacokinetic profile of liposomal amphotericin B based on free, encapsulated and total amphotericin B demonstrated the characteristics of a three compartment al model. The majority drug in the circulating system after IV infusion of liposomal amphotericin B is remained liposomal form . Pharmacokinetic behaviors in Chinese population w ere consistent with that in western healthy population based on total and unbound amphotericin B concentrations in plasma. The generic liposomal amphotericin B for injection is bioequivalent to Ambisome ® in terms of the Pharmacokinetic parameters for free, encapsulated and total amphotericin B. Trial registration number at National Medical Products Administration CTR20200885 . Date of registration: May 22 , 20 2 0.

scholarly journals Bioequivalence of levamlodipine besylate tablets in healthy Chinese subjects: A single-dose and two-period crossover randomized study

2020 ◽  
Author(s):  
Li Xin ◽  
Chenjing Wang ◽  
Ting Li ◽  
Yanping Liu ◽  
Shuqin Liu ◽  
...  
Keyword(s):  
Single Dose ◽  
Randomized Study ◽  
Plasma Concentrations ◽  
Bioequivalence Study ◽  
Pharmacokinetic Parameters ◽  
Open Label ◽  
Liquid Chromatography Tandem Mass ◽  
The Mean ◽  
Healthy Chinese ◽  
Chinese Subjects

Abstract Background: Levamlodipine, a calcium channel blocker, has been show act as a cardiovascular drug. To compare the pharmacokinetic parameters between levamlodipine (test formulation) at a single dose of 5 mg and amlodipine (reference formulation) at a single dose of 10 mg, the bioequivalence study was carried out.Methods: A single-dose randomized, open-label, two-period crossover study was designed in healthy Chinese subjects. 48 subjects were divided into fasted and fed groups equally. The subjects randomly received the test or reference formulations at the rate of 1:1. Following a 21-day washout period, the alternative formulations were received. The blood samples were collected at 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 24, 36, 48, 72, 96, 120, 144, 168 hours later. Liquid chromatography-tandem mass spectrometry (LC-MS/MS) was applied to determine the plasma concentrations of levamlodipine. Adverse events were recorded.Results: The 90% confidence intervals (CIs) of the ratio of geometric means (GMRs) of Cmax, AUC0-t, and AUC0-∞ under both fasted and fed conditions were within the prespecified bioequivalence limits between 80~125%. Under fasted conditions, 24 subjects were enrolled and completed the study. The mean Cmax was (2.70±0.49) ng/mL, AUC0-t was (141.32±36.24) ng×h/mL and AUC0-∞ was (157.14±45.65) ng×h/mL after a single dose of 5 mg levamlodipine. The mean Cmax was (2.83±0.52) ng/mL, AUC0-t was (153.62±33.96) ng×h/mL and AUC0-∞ was (173.05±41.78) ng×h/mL after a single dose of 10 mg amlodipine. Under fed conditions, 24 subjects were enrolled and completed the study. The mean Cmax was (2.73±0.55) ng/mL, AUC0-t was (166.93±49.96) ng×h/mL and AUC0-∞ was (190.99±70.89) ng×h/mL after a single dose of 5 mg levamlodipine. The mean Cmax was (2.87±0.81) ng/mL AUC0-t was (165.46±43.58) ng×h/mL and AUC0-∞ was (189.51±64.70) ng×h/mL after a single dose of 10 mg amlodipine. Serious adverse event was not observed.Conclusion: The trial confirmed that levamlodipine at a single dose of 5 mg and amlodipine at a single dose of 10 mg were bioequivalent under both fasted condition and fed condition.Trial registration: Cinicaltrials, NCT04411875. Registered 3 June 2020 - Retrospectively registered, https://register.clinicaltrials.gov/prs/app/action/SelectProtocol?sid=S0009W1Q&selectaction=Edit&uid=U00050YQ&ts=3&cx=-6iqkm8

scholarly journals Plasma Concentrations of Boswellic Acids in Fasting Healthy Humans Supplemented with a Water-Soluble Boswellia Extract (78% AKBA) vs. Reference Boswellia Extract (30% AKBA) (P06-005-19)

2019 ◽  
Vol 3 (Supplement_1) ◽  
Author(s):  
Barbara Davis ◽  
Krishanu Sengupta ◽  
Venkata Krishnaraju Alluri ◽  
Trimurtulu Golakoti
Keyword(s):  
Plasma Concentrations ◽  
Water Soluble ◽  
Pharmacokinetic Analysis ◽  
Pharmacokinetic Parameters ◽  
Open Label ◽  
Oral Ingestion ◽  
Post Dose ◽  
Geometric Means ◽  
Funding Sources ◽  
Healthy Humans

Abstract Objectives A randomized, open label, balanced, two-way crossover study compared the oral bioavailability and pharmacokinetic profiles of two Boswellia products standardized to 3-O-acetyl-11-Keto-β-boswellic acid (AKBA). Methods Twenty-two fasted male participants completed the study. They received a single oral-dose of water-soluble Boswellia extract 78% (LI51202F1) or the standard Boswellia extract 30% (5-Loxin) at 30 mg AKBA equivalent with 240 mL water on 2 separate occasions 12 days apart. Plasma AKBA and KBA were analyzed using a LC-MS/MS in pre- (0 hr) and post-dose (00.50, 01.00, 01.50, 02.00, 02.50, 03.00, 04.00, 08.00, 12.00 and 24.00 hrs) blood samples. Pharmacokinetic analysis was performed using WinNonlin® version 7.0 (Pharsight corporation, USA). Results Comparative analysis of the pharmacokinetic parameters showed LI51202F1 had higher (111.11%) Cmax for AKBA vs. 5-Loxin. The bioavailability indicated by Geometric means of AUC0-t and AUC0-∞ were 25.49% and 16.13% higher in LI51202F1 than 5-Loxin. Conclusions The present study demonstrates that oral ingestion of water soluble and standard Boswellia extracts resulted in similar bioavailability. Interestingly, the water-soluble version exhibited higher Cmax and AUC values, which could be attributed to the improved solubility of LI51202F1. Funding Sources Laila Nutraceuticals.

scholarly journals Bioequivalence of levamlodipine besylate tablets in healthy Chinese subjects: A single-dose and two-period crossover randomized study

2020 ◽  
Author(s):  
Li Xin ◽  
Chenjing Wang ◽  
Ting Li ◽  
Yanping Liu ◽  
Shuqin Liu ◽  
...  
Keyword(s):  
Single Dose ◽  
Randomized Study ◽  
Plasma Concentrations ◽  
Bioequivalence Study ◽  
Pharmacokinetic Parameters ◽  
Open Label ◽  
Liquid Chromatography Tandem Mass ◽  
The Mean ◽  
Healthy Chinese ◽  
Chinese Subjects

Abstract Background: Levamlodipine, a calcium channel blocker, has been show act as a cardiovascular drug. To compare the pharmacokinetic parameters between levamlodipine (test formulation) at a single dose of 5 mg and amlodipine (reference formulation) at a single dose of 10 mg, the bioequivalence study was carried out.Methods: A single-dose randomized, open-label, two-period crossover study was designed in healthy Chinese subjects. 48 subjects were divided into fasted and fed groups equally. The subjects randomly received the test or reference formulations at the rate of 1:1. Following a 21-day washout period, the alternative formulations were received. The blood samples were collected at 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 24, 36, 48, 72, 96, 120, 144, 168 hours later. Liquid chromatography-tandem mass spectrometry (LC-MS/MS) was applied to determine the plasma concentrations of levamlodipine. Adverse events were recorded.Results: The 90% confidence intervals (CIs) of the ratio of geometric means (GMRs) of Cmax, AUC0-t, and AUC0-∞ under both fasted and fed conditions were within the prespecified bioequivalence limits between 80~125%. Under fasted conditions, 24 subjects were enrolled and completed the study. The mean Cmax was (2.70±0.49) ng/mL, AUC0-t was (141.32±36.24) ng×h/mL and AUC0-∞ was (157.14±45.65) ng×h/mL after a single dose of 5 mg levamlodipine. The mean Cmax was (2.83±0.52) ng/mL, AUC0-t was (153.62±33.96) ng×h/mL and AUC0-∞ was (173.05±41.78) ng×h/mL after a single dose of 10 mg amlodipine. Under fed conditions, 24 subjects were enrolled and completed the study. The mean Cmax was (2.73±0.55) ng/mL, AUC0-t was (166.93±49.96) ng×h/mL and AUC0-∞ was (190.99±70.89) ng×h/mL after a single dose of 5 mg levamlodipine. The mean Cmax was (2.87±0.81) ng/mL AUC0-t was (165.46±43.58) ng×h/mL and AUC0-∞ was (189.51±64.70) ng×h/mL after a single dose of 10 mg amlodipine. Serious adverse event was not observed.Conclusion: The trial confirmed that levamlodipine at a single dose of 5 mg and amlodipine at a single dose of 10 mg were bioequivalent under both fasted condition and fed condition.Trial registration: Cinicaltrials, NCT04411875. Registered 3 June 2020 - Retrospectively registered, https://register.clinicaltrials.gov/prs/app/action/SelectProtocol?sid=S0009W1Q&selectaction=Edit&uid=U00050YQ&ts=3&cx=-6iqkm8

scholarly journals Bioequivalence of levamlodipine besylate tablets in healthy Chinese subjects: a single-dose and two-period crossover randomized study

2020 ◽  
Vol 21 (1) ◽  
Author(s):  
Xin Li ◽  
Chenjing Wang ◽  
Ting Li ◽  
Yanping Liu ◽  
Shuqin Liu ◽  
...  
Keyword(s):  
Single Dose ◽  
Randomized Study ◽  
Plasma Concentrations ◽  
Bioequivalence Study ◽  
Pharmacokinetic Parameters ◽  
Open Label ◽  
Liquid Chromatography Tandem Mass ◽  
The Mean ◽  
Healthy Chinese ◽  
Chinese Subjects

Abstract Background Levamlodipine, a calcium channel blocker, has been show act as a cardiovascular drug. To compare the pharmacokinetic parameters between levamlodipine (test formulation) at a single dose of 5 mg and amlodipine (reference formulation) at a single dose of 10 mg, the bioequivalence study was carried out. Methods A single-dose randomized, open-label, two-period crossover study was designed in healthy Chinese subjects. 48 subjects were divided into fasted and fed groups equally. The subjects randomly received the test or reference formulations at the rate of 1:1. Following a 21-day washout period, the alternative formulations were received. The blood samples were collected at 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 24, 36, 48, 72, 96, 120, 144, 168 h later. Liquid chromatography-tandem mass spectrometry (LC-MS/MS) was applied to determine the plasma concentrations of levamlodipine. Adverse events were recorded. Results The 90% confidence intervals (CIs) of the ratio of geometric means (GMRs) of Cmax, AUC0-t, and AUC0-∞ under both fasted and fed conditions were within the prespecified bioequivalence limits between 80 ~ 125%. Under fasted conditions, 24 subjects were enrolled and completed the study. The mean Cmax was (2.70 ± 0.49) ng/mL, AUC0-t was (141.32 ± 36.24) ng × h/mL and AUC0-∞ was (157.14 ± 45.65) ng × h/mL after a single dose of 5 mg levamlodipine. The mean Cmax was (2.83 ± 0.52) ng/mL, AUC0-t was (153.62 ± 33.96) ng × h/mL and AUC0-∞ was (173.05 ± 41.78) ng × h/mL after a single dose of 10 mg amlodipine. Under fed conditions, 24 subjects were enrolled and completed the study. The mean Cmax was (2.73 ± 0.55) ng/mL, AUC0-t was (166.93 ± 49.96) ng × h/mL and AUC0-∞ was (190.99 ± 70.89) ng × h/mL after a single dose of 5 mg levamlodipine. The mean Cmax was (2.87 ± 0.81) ng/mL AUC0-t was (165.46 ± 43.58) ng × h/mL and AUC0-∞ was (189.51 ± 64.70) ng × h/mL after a single dose of 10 mg amlodipine. Serious adverse event was not observed. Conclusion The trial confirmed that levamlodipine at a single dose of 5 mg and amlodipine at a single dose of 10 mg were bioequivalent under both fasted condition and fed condition. Trial registration Cinicaltrials, NCT04411875. Registered 3 June 2020 - Retrospectively registered

scholarly journals A pharmacokinetics study of proposed bevacizumab biosimilar MYL-1402O vs EU-bevacizumab and US-bevacizumab

2021 ◽  
Author(s):  
Matthew Hummel ◽  
Tjerk Bosje ◽  
Andrew Shaw ◽  
Mark Shiyao Liu ◽  
Abhijit Barve ◽  
...  
Keyword(s):  
Serum Concentration ◽  
Phase 1 ◽  
Elimination Rate ◽  
Pharmacokinetic Analysis ◽  
Pharmacokinetic Parameters ◽  
Healthy Male ◽  
Double Blind ◽  
Healthy Male Volunteers ◽  
Male Volunteers ◽  
Eu And Us

Abstract Purpose Bevacizumab is a recombinant humanized monoclonal antibody that inhibits vascular endothelial growth factor-specific angiogenesis in some cancers. MYL-1402O is a proposed bevacizumab biosimilar. Methods The primary objective of this single-center, randomized, double-blind, three-arm, parallel-group, phase 1 study in healthy male volunteers was to evaluate bioequivalence of MYL-1402O to EU and US-reference bevacizumab, and EU-reference bevacizumab to US-reference bevacizumab. The primary pharmacokinetic parameter was area under the serum concentration–time curve from 0 extrapolated to infinity (AUC0–∞). Pharmacokinetic parameters were analyzed using general linear models of analysis of variance. Secondary endpoints included safety and tolerability. Results Of 111 enrolled subjects, 110 were included in the pharmacokinetic analysis (MYL-1402O, n = 37; EU-reference bevacizumab, n = 36; US-reference bevacizumab, n = 37). Bioequivalence was demonstrated between MYL-1402O and EU-reference bevacizumab, MYL-1402O and US-reference bevacizumab, and between EU- and US-reference bevacizumab where least squares mean ratios of AUC0–∞ were close to 1, and 90% CIs were within the equivalence range (0.80–1.25). Secondary pharmacokinetic parameters (AUC from 0 to time of last quantifiable concentration [AUC0–t], peak serum concentration [Cmax], time to Cmax, elimination rate constant, and elimination half-life) were also comparable, with 90% CIs for ratios of AUC0–t and Cmax within 80–125%. Treatment-emergent adverse events were similar across all three treatment groups and were consistent with clinical data for bevacizumab. Conclusion MYL-1402O was well tolerated and demonstrated pharmacokinetic and safety profiles similar to EU-reference bevacizumab and US-reference bevacizumab in healthy male volunteers. No new significant safety issues emerged (ClinicalTrials.gov, NCT02469987; ClinicalTrialsRegister.eu EudraCT, 2014-005621-12; June 12, 2015).

scholarly journals Effects of FMO3 Polymorphisms on Pharmacokinetics of Sulindac in Chinese Healthy Male Volunteers

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Yong-Jun Tang ◽  
Kai Hu ◽  
Wei-Hua Huang ◽  
Chong-Zhi Wang ◽  
Zhi Liu ◽  
...  
Keyword(s):  
Plasma Concentrations ◽  
Pharmacokinetic Parameters ◽  
Healthy Male ◽  
Mean Values ◽  
Healthy Male Volunteers ◽  
Male Volunteers ◽  
Pcr Rflp ◽  
Hardy Weinberg Equilibrium ◽  
Sulindac Sulfide ◽  
The Mean

Sulindac is a nonsteroidal anti-inflammatory drug, which is clinically used for the ailments of various inflammations. This study investigated the allele frequencies of FMO3 E158K and E308G and evaluated the influences of these two genetic polymorphisms on the pharmacokinetics of sulindac and its metabolites in Chinese healthy male volunteers. Eight FMO3 wild-type (FMO3 HHDD) subjects and seven FMO3 homozygotes E158K and E308G mutant (FMO3 hhdd) subjects were recruited from 247 healthy male volunteers genotyped by PCR-RFLP method. The plasma concentrations of sulindac, sulindac sulfide, and sulindac sulfone were determined by UPLC, while the pharmacokinetic parameters of the two different FMO3 genotypes were compared with each other. The frequencies of FMO3 E158K and E308G were 20.3% and 20.1%, respectively, which were in line with Hardy-Weinberg equilibrium (D′ = 0.977, r2 = 0.944). The mean values of Cmax, AUC0–24, and AUC0–∞ of sulindac were significantly higher in FMO3 hhdd group than those of FMO3 HHDD group (P<0.05), while the pharmacokinetic parameters except Tmax of sulindac sulfide and sulindac sulfone showed no statistical difference between the two groups. The two FMO3 mutants were in close linkage disequilibrium and might play an important role in the pharmacokinetics of sulindac in Chinese healthy male volunteers.

Liquid Chromatography-Tandem Mass Spectrometry Method for Ticagrelor and its Active Metabolite Determination in Human Plasma: Application to a Pharmacokinetic Study

2020 ◽  
Vol 16 (5) ◽  
pp. 602-608
Author(s):  
Niloufar Marsousi ◽  
Serge Rudaz ◽  
Jules A. Desmeules ◽  
Youssef Daali
Keyword(s):  
Clinical Trial ◽  
Formic Acid ◽  
Human Plasma ◽  
Active Metabolite ◽  
Pharmacokinetic Parameters ◽  
Pharmacokinetic Studies ◽  
Healthy Male ◽  
Coronary Syndrome ◽  
Healthy Male Volunteers ◽  
Male Volunteers

Background: Ticagrelor is a highly recommended new antiplatelet agent for the treatment of patients with acute coronary syndrome at moderate or high ischemic risk. There is a real need for rapid and accurate analytical methods for ticagrelor determination in biological fluids for pharmacokinetic studies. In this study, a sensitive and specific LC-MS method was developed and validated for quantification of ticagrelor and its Active Metabolite (AM) in human plasma over expected clinical concentrations. Methods: Samples were handled by Liquid-Liquid Extraction (LLE). A linear gradient was applied with a mobile phase composed of formic acid 0.1% and acetonitrile with 0.1% of formic acid using a C18 reversed-phase column. MS spectra were obtained by electrospray ionization in negative mode and optimized at 521.4→360.9 m/z, 477.2→361.2 m/z and 528.1→367.9 m/z transitions for ticagrelor, AM and ticagrelor-d7, respectively. Results: This method allowed rapid elution, in less than 4 minutes, and quantification of concentrations as low as 2 ng/mL for ticagrelor and 1 ng/mL for AM using only 100 μL of human plasma. LLE using hexane/ethyl acetate (50/50) was an optimal compromise in terms of extraction recovery and endogenous compounds interference. Trueness values of 87.8% and 89.5% and precisions of 84.1% and 93.8% were obtained for ticagrelor and AM, respectively. Finally, the usefulness of the method was assessed in a clinical trial where a single 180 mg ticagrelor was orally administered to healthy male volunteers. Pharmacokinetic parameters of ticagrelor and its active metabolite were successfully determined. Conclusion: A sensitive and specific quantification LC-MS-MS method was developed and validated for ticagrelor and its active metabolite determination in human plasma. The method was successfully applied to a clinical trial where a single ticagrelor 180 mg dose was orally administered to healthy male volunteers. The described method allows quantification of concentrations as low as 2 ng/mL of ticagrelor and 1 ng/mL of the metabolite using only 100 μL of plasma.

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