1
|
Abend A, Stippler E, Kühl N, Externbrink A, Smith KL, Mann J. Commentary on "The Effect of Sampling Cannula on In Vitro Dissolution Testing with USP Paddle Method". AAPS J 2024; 26:73. [PMID: 38926199 DOI: 10.1208/s12248-024-00926-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Accepted: 04/16/2024] [Indexed: 06/28/2024] Open
Affiliation(s)
| | - Erika Stippler
- European Directorate for the Quality of Medicines and Healthcare, European Pharmacopeia Department, 67081, Strasbourg, France
| | - Nikos Kühl
- Analytical Development, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany
| | - Anna Externbrink
- Analytical Research and Development, Merck Sharp & Dohme, Schachen, Switzerland
| | | | - James Mann
- Oral Product Development, Pharmaceutical Technology & Development, Operations, AstraZeneca, Macclesfield, UK
| |
Collapse
|
2
|
An Assessment of Occasional Bio-Inequivalence for BCS1 and BCS3 Drugs: What are the Underlying Reasons? J Pharm Sci 2021; 111:124-134. [PMID: 34363838 DOI: 10.1016/j.xphs.2021.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 08/02/2021] [Accepted: 08/02/2021] [Indexed: 11/20/2022]
Abstract
Despite having adequate solubility properties, bioequivalence (BE) studies performed on immediate release formulations containing BCS1/3 drugs occasionally fail. By systematically evaluating a set of 17 soluble drugs where unexpected BE failures have been reported and comparing to a set of 29 drugs where no such reports have been documented, a broad assessment of the risk factors leading to BE failure was performed. BE failures for BCS1/3 drugs were predominantly related to changes in Cmax rather than AUC. Cmax changes were typically modest, with minimal clinical significance for most drugs. Overall, drugs with a sharp plasma peak were identified as a key factor in BE failure risk. A new pharmacokinetic term (t½Cmax) is proposed to identify drugs at higher risk due to their peak plasma profile shape. In addition, the analysis revealed that weak acids, and drugs with particularly high gastric solubility are potentially more vulnerable to BE failure, particularly when these features are combined with a sharp Cmax peak. BCS3 drugs, which are often characterised as being more vulnerable to BE failure due to their potential for permeation and transit to be altered, particularly by excipient change, were not in general at greater risk of BE failures. These findings will help to inform how biowaivers may be optimally applied in the future.
Collapse
|
3
|
Scherholz ML, Schlesinger N, Androulakis IP. Chronopharmacology of glucocorticoids. Adv Drug Deliv Rev 2019; 151-152:245-261. [PMID: 30797955 DOI: 10.1016/j.addr.2019.02.004] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 12/24/2018] [Accepted: 02/13/2019] [Indexed: 12/30/2022]
Abstract
Glucocorticoids influence a wide array of metabolic, anti-inflammatory, immunosuppressive, and cognitive signaling processes, playing an important role in homeostasis and preservation of normal organ function. Synthesis is regulated by the hypothalamic-pituitary-adrenal (HPA) axis of which cortisol is the primary glucocorticoid in humans. Synthetic glucocorticoids are important pharmacological agents that augment the anti-inflammatory and immunosuppressive properties of endogenous cortisol and are widely used for the treatment of asthma, Crohn's disease, and rheumatoid arthritis, amongst other chronic conditions. The homeostatic activity of cortisol is disrupted by the administration of synthetic glucocorticoids and so there is interest in developing treatment options that minimize HPA axis disturbance while maintaining the pharmacological effects. Studies suggest that optimizing drug administration time can achieve this goal. The present review provides an overview of endogenous glucocorticoid activity and recent advances in treatment options that have further improved patient safety and efficacy with an emphasis on chronopharmacology.
Collapse
|
4
|
Shams T, Illangakoon UE, Parhizkar M, Harker AH, Edirisinghe S, Orlu M, Edirisinghe M. Electrosprayed microparticles for intestinal delivery of prednisolone. J R Soc Interface 2019; 15:rsif.2018.0491. [PMID: 30158187 PMCID: PMC6127171 DOI: 10.1098/rsif.2018.0491] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 07/25/2018] [Indexed: 12/16/2022] Open
Abstract
Single and coaxial electrospraying was used to prepare Eudragit L100-55 polymer microparticles containing prednisolone as the active pharmaceutical ingredient. Different compositions of prednisolone and Eudragit L100-55 were used to develop five different formulations with different polymer : drug ratios. The resultant microparticles had a toroidal shape with a narrow size distribution. Prednisolone was present in an amorphous physical state, as confirmed by X-ray diffraction analysis. Dissolution studies were carried out in order to investigate the feasibility of the proposed system for site-specific release of prednisolone. The release rates were interpreted in terms of diffusion-controlled release. It was shown that utilization of pH-responsive Eudragit L100-55 could minimize the release of prednisolone in the acidic conditions of the stomach, which was followed by rapid release as the pH of the release medium was adjusted to 6.8 after the first 2 h. This is especially desirable for the treatment of conditions including inflammatory bowel disease and colon cancer.
Collapse
Affiliation(s)
- T Shams
- Department of Mechanical Engineering, University College London, Torrington Place, London WC1E 7JE, UK
| | - U E Illangakoon
- Department of Mechanical Engineering, University College London, Torrington Place, London WC1E 7JE, UK
| | - M Parhizkar
- Department of Mechanical Engineering, University College London, Torrington Place, London WC1E 7JE, UK
| | - A H Harker
- Department of Physics and Astronomy and London Centre for Nanotechnology, University College London, London WC1E 6BT, UK
| | - S Edirisinghe
- Maidstone Hospital, Hermitage Lane, Maidstone ME16 9QQ, UK
| | - M Orlu
- Department of Pharmaceutics, University College London School of Pharmacy, Brunswick Square, London WC1N 1AX, UK
| | - M Edirisinghe
- Department of Mechanical Engineering, University College London, Torrington Place, London WC1E 7JE, UK
| |
Collapse
|
5
|
Blend of cellulose ester and enteric polymers for delayed and enteric coating of core tablets of hydrophilic and hydrophobic drugs. Int J Pharm 2019; 567:118462. [PMID: 31247274 DOI: 10.1016/j.ijpharm.2019.118462] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 06/19/2019] [Accepted: 06/23/2019] [Indexed: 11/21/2022]
Abstract
The focus of this work was to explore feasibility of using blends of cellulose esters (CA 320S, CA 3980-10 or CAB 171-15) and enteric polymers (C-A-P, Eudragit® L100 or HPMCP HP-55) for delayed and enteric coating of tablets containing either diclofenac sodium (DFS, high dose) or prednisone (PDS, low dose) drug. The core tablets of DFS or PDS were coated with polymer blends to achieve approximate weight gain of 5% and 10%. The coated tablets were characterized for dissolution (0.1 N HCl and phosphate buffer pH 6.8) and surface morphology. The surface morphology of CA 398-10 or CAB 171-15 based polymer blends was rough and fibrous. Less than 0.5% drug was dissolved in 120 min from 5% w/w coated tablets in acid-phase dissolution testing. The dissolution in phosphate buffer pH 6.8 medium varied from 16.2 ± 0.2 to 98 ± 2.1%, and 30.1 ± 0.5% to 101.7 ± 3.4% in 120 min from DFS and PDS coated tablets, respectively. Dissolution was less in CA 320S based blends compared to CA 398-10 or CAB 171-15 blends in phosphate buffer medium. Furthermore, there were no significant differences observed in dissolution profiles of coated tablets of DFS or PDS. This can be explained by dose of the drugs. Additionally, dissolution was higher in tablets coated with enteric polymer alone compared with the blends. In conclusion, core tablets can be coated with cellulose ester and enteric polymers blend to impart both delayed and enteric release feature to the tablets containing hydrophilic or hydrophobic drug.
Collapse
|
6
|
Cartaxo AL, Costa-Pinto AR, Martins A, Faria S, Gonçalves VMF, Tiritan ME, Ferreira H, Neves NM. Influence of PDLA nanoparticles size on drug release and interaction with cells. J Biomed Mater Res A 2018; 107:482-493. [PMID: 30485652 DOI: 10.1002/jbm.a.36563] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 10/01/2018] [Accepted: 10/08/2018] [Indexed: 12/18/2022]
Abstract
Polymeric nanoparticles (NPs) are strong candidates for the development of systemic and targeted drug delivery applications. Their size is a determinant property since it defines the NP-cell interactions, drug loading capacity, and release kinetics. Herein, poly(d,l-lactic acid) (PDLA) NPs were produced by the nanoprecipitation method, in which the influence of type and concentration of surfactant as well as PDLA concentration were assessed. The adjustment of these parameters allowed the successful production of NPs with defined medium sizes, ranging from 80 to 460 nm. The surface charge of the different NPs populations was consistently negative. Prednisolone was effectively entrapped and released from NPs with statistically different medium sizes (i.e., 80 or 120 nm). Release profiles indicate that these systems were able to deliver appropriate amounts of drug with potential applicability in the treatment of inflammatory conditions. Both NPs populations were cytocompatible with human endothelial and fibroblastic cells, in the range of concentrations tested (0.187-0.784 mg/mL). However, confocal microscopy revealed that within the range of sizes tested in our experiments, NPs presenting a medium size of 120 nm were able to be internalized in endothelial cells. In summary, this study demonstrates the optimization of the processing conditions to obtain PDLA NPs with narrow size ranges, and with promising performance for the treatment of inflammatory diseases. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 107A: 482-493, 2019.
Collapse
Affiliation(s)
- Ana Luísa Cartaxo
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Guimarães, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga, Portugal
| | - Ana R Costa-Pinto
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, 4200-374, Porto, Portugal
| | - Albino Martins
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Guimarães, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga, Portugal
| | - Susana Faria
- Department of Mathematics for Science and Technology, Research CMAT, University of Minho, 4800-058, Guimarães, Portugal
| | - Virgínia M F Gonçalves
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Paredes, Portugal
| | - Maria Elizabeth Tiritan
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Paredes, Portugal.,Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, 4050-313, Porto, Portugal.,Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade do Porto, 4050-123, Porto, Portugal
| | - Helena Ferreira
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Guimarães, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga, Portugal
| | - Nuno M Neves
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Guimarães, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga, Portugal.,The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, Guimarães, Portugal
| |
Collapse
|
7
|
Toehwé LH, Prado LD, Rocha HVA. Prednisone raw material characterization and formulation development. BRAZ J PHARM SCI 2018. [DOI: 10.1590/s2175-97902017000400088] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
|
8
|
Population Pharmacokinetics of Prednisolone in Relation to Clinical Outcome in Children With Nephrotic Syndrome. Ther Drug Monit 2017; 38:534-45. [PMID: 27120177 DOI: 10.1097/ftd.0000000000000308] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
BACKGROUND The relapse frequency in children with nephrotic syndrome (NS) is highly variable despite standardized prednisolone treatment regimens. Existing evidence on the relationship between prednisolone pharmacokinetics (PK) and clinical response in children with NS is scarce and limited. The aim of this study was to develop a pediatric popPK model for prednisolone based on our previous model based on healthy adults using salivary measurements in children with NS and to correlate clinical outcome with between-subject variability in prednisolone exposure. METHODS The pharmacokinetics of prednisolone in a well-defined, prospective cohort consisting of 104 children with NS while in remission was determined. Pharmacokinetic parameters were analyzed in relation to relapse patterns and side effects. Noninvasive salivary prednisolone measurements were performed using a sparse sampling strategy. A population pharmacokinetic approach was used to derive individual estimates of apparent clearance (CL/F) and apparent volume of distribution (V/F) from the salivary concentration-time curve, followed by calculation of the area under the curve (AUC) of free prednisolone. The individual free serum prednisolone exposure from prednisolone in saliva was derived from the salivary concentration-time curves. Genetic polymorphisms of CYP3A4, CYP3A5, ABCB1, NR1L2, and POR were explored in relation to between-subject variability of CL/F. RESULTS Moderate interindividual variability was found for CL/F (CV, 44.7%). Unexplained random between-subject variability (eta) of CL/F was lower in patients carrying 1 or 2 ABCB1 3435C>T alleles compared to wild type: median -0.04 (interquartile range, -0.17 to 0.21) and 0.00 (-0.11 to 0.16) versus 0.17 (-0.08 to 0.47), P = 0.046. Exposure to free prednisolone was not associated with frequent relapses or adverse effects. CONCLUSIONS This study provides evidence for the possibility of prednisolone drug monitoring through salivary measurements and this may be of particular usefulness in pediatric patients. However, the observed variability in prednisolone exposure, in the therapeutic dose range studied, is not considered to be a major determinant of clinical outcome in children with NS.
Collapse
|
9
|
Patadia R, Vora C, Mittal K, Mashru RC. Quality by Design Empowered Development and Optimisation of Time-Controlled Pulsatile Release Platform Formulation Employing Compression Coating Technology. AAPS PharmSciTech 2017; 18:1213-1227. [PMID: 27460936 DOI: 10.1208/s12249-016-0590-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2016] [Accepted: 07/12/2016] [Indexed: 12/22/2022] Open
Abstract
The research was envisaged for development of time-controlled pulsatile release (PR) platform formulation to facilitate management of early morning chronological attacks. The development was started using prednisone as a model drug wherein core tablets were prepared using direct compression method and subsequently compression-coated with ethylcellulose (EC)-hydroxypropyl methylcellulose (HPMC) excipient blend. Initially, quality target product profile was established and risk assessment was performed using failure mode and effect analysis. In an endeavour to accomplish the objective, central composite design was employed as a design of experiment (DoE) tool. Optimised compression-coated tablet (CCT) exhibited 4-6 h lag time followed by burst release profile under variegated dissolution conditions viz. multi-media, change in apparatus/agitation and biorelevant media. Afterwards, five different drugs, i.e. methylprednisolone, diclofenac sodium, diltiazem hydrochloride, nifedipine and lornoxicam, were one-by-one incorporated into the optimised prednisone formula with replacement of former drug. Change in drug precipitated the issues like poor solubility and flow property which were respectively resolved through formulation of solid dispersion and preparation of active pharmaceutical ingredient (API) granules. Albeit, all drug CCTs exhibited desired release profile similar to prednisone CCTs. In nutshell, tour de force of research epitomised the objective of incorporating diverse drug molecules and penultimately obtaining robust release profile at varying dissolution conditions.
Collapse
|
10
|
Patadia R, Vora C, Mittal K, Mashru R. Investigating effects of hydroxypropyl methylcellulose (HPMC) molecular weight grades on lag time of press-coated ethylcellulose tablets. Pharm Dev Technol 2015; 21:794-802. [PMID: 26100758 DOI: 10.3109/10837450.2015.1055767] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The research undertaken exemplifies the effects of hydroxypropyl methylcellulose (HPMC) molecular weight (MW) grades of on lag time of press-coated ethylcellulose (EC) tablets. The formulation comprised an immediate release core (containing prednisone as a model drug) surrounded by compression coating with variegated EC-HPMC blends. Five selected HPMC grades (E5, E15, E50, K100LV and K4M) were explored at three different concentrations (10% w/w, 20% w/w and 30% w/w in outer coat) to understand their effects on lag time and drug release. In vitro drug release testing demonstrated that, with increase in concentration of E5 and E15, up to 30% w/w, the mean lag time decreased progressively; whereas with remaining grades, the mean lag time initially decreased up to 20% w/w level and thereafter increased for 30% w/w level. Importantly, with increase in HPMC concentration in the outer coat, the variability in lag time (%RSD; n = 6) was decreased for each of E5, E15 and E50, whereas increased for K100LV and K4M. In general, the variability in lag time was increased with increase in HPMC MW at studied concentration levels. Markedly, tablets with 30% w/w K4M in outer coat exhibited slight premature release (before the rupture of outer coat) along with high variability in lag time. Overall, the study concluded that low MW HPMCs (E5, E15 and E50) were found rather efficient than higher MW HPMCs for developing robust EC-based press-coated pulsatile release formulations where precise lag time followed by sharp burst release is desired.
Collapse
Affiliation(s)
- Riddhish Patadia
- a Pharmacy Department, Faculty of Technology and Engineering , The Maharaja Sayajirao University of Baroda , Kalabhavan, Vadodara , Gujarat , India
| | - Chintan Vora
- a Pharmacy Department, Faculty of Technology and Engineering , The Maharaja Sayajirao University of Baroda , Kalabhavan, Vadodara , Gujarat , India
| | - Karan Mittal
- a Pharmacy Department, Faculty of Technology and Engineering , The Maharaja Sayajirao University of Baroda , Kalabhavan, Vadodara , Gujarat , India
| | - Rajashree Mashru
- a Pharmacy Department, Faculty of Technology and Engineering , The Maharaja Sayajirao University of Baroda , Kalabhavan, Vadodara , Gujarat , India
| |
Collapse
|
11
|
Patadia R, Vora C, Mittal K, Mashru R. Investigating critical effects of variegated lubricants, glidants and hydrophilic additives on lag time of press coated ethylcellulose tablets. Pharm Dev Technol 2015; 21:302-10. [PMID: 25566928 DOI: 10.3109/10837450.2014.999788] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The research envisaged focuses on vital impacts of variegated lubricants, glidants and hydrophilic additives on lag time of press coated ethylcellulose (EC) tablets using prednisone as a model drug. Several lubricants and glidants such as magnesium stearate, colloidal SiO2, sodium stearyl fumarate, talc, stearic acid, polyethylene glycol (6000) and glyceryl behenate were investigated to understand their effects on lag time by changing their concentrations in outer coat. Further, the effects of hydrophilic additives on lag time were examined for hydroxypropylmethylcellulose (E5), hydroxypropylcellulose (EF and SSL), povidone (K30), copovidone, polyethylene glycol (4000), lactose and mannitol. In vitro drug release testing revealed that each selected lubricant/glidant, if present even at concentration of 0.25% w/w, significantly reduced the lag time of press coated tablets. Specifically, colloidal SiO2 and/or magnesium stearate were detrimental while other lubricants/glidants were relatively less injurious. Among hydrophilic additives, freely water soluble fillers had utmost influence in lag time, whereas, comparatively less impact was observed with polymeric binders. Concisely, glidant and lubricant should be chosen to have minimal impact on lag time and further judicious selection of hydrophilic additives should be exercised for modulating lag time of pulsatile release formulations.
Collapse
Affiliation(s)
- Riddhish Patadia
- a Pharmacy Department, Faculty of Technology and Engineering , The Maharaja Sayajirao University of Baroda , Kalabhavan , Vadodara , Gujarat , India
| | - Chintan Vora
- a Pharmacy Department, Faculty of Technology and Engineering , The Maharaja Sayajirao University of Baroda , Kalabhavan , Vadodara , Gujarat , India
| | - Karan Mittal
- a Pharmacy Department, Faculty of Technology and Engineering , The Maharaja Sayajirao University of Baroda , Kalabhavan , Vadodara , Gujarat , India
| | - Rajashree Mashru
- a Pharmacy Department, Faculty of Technology and Engineering , The Maharaja Sayajirao University of Baroda , Kalabhavan , Vadodara , Gujarat , India
| |
Collapse
|
12
|
Santos OMM, Reis MED, Jacon JT, Lino MEDS, Simões JS, Doriguetto AC. Polymorphism: an evaluation of the potential risk to the quality of drug products from the Farmácia Popular Rede Própria. BRAZ J PHARM SCI 2014. [DOI: 10.1590/s1984-82502011000100002] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Polymorphism in solids is a common phenomenon in drugs, which can lead to compromised quality due to changes in their physicochemical properties, particularly solubility, and, therefore, reduce bioavailability. Herein, a bibliographic survey was performed based on key issues and studies related to polymorphism in active pharmaceutical ingredient (APIs) present in medications from the Farmácia Popular Rede Própria. Polymorphism must be controlled to prevent possible ineffective therapy and/or improper dosage. Few mandatory tests for the identification and control of polymorphism in medications are currently available, which can result in serious public health concerns.
Collapse
|
13
|
Monitoring prednisolone and prednisone in saliva: a population pharmacokinetic approach in healthy volunteers. Ther Drug Monit 2014; 35:485-92. [PMID: 23783167 DOI: 10.1097/ftd.0b013e3182899ea2] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Prednisolone (PLN) is a widely used corticosteroid in a variety of immune-mediated diseases. Treatment regimes generally consist of empirically derived treatment doses, whereas therapeutic response among patients is highly variable. Drug monitoring of serum PLN levels might support a more rational approach to dose selection, yet is invasive and laborious. In analogy to cortisol, salivary PLN may offer a good alternative for serum PLN, being a representative approximation of free serum PLN. The aims of this study were to evaluate the correlation between free serum and salivary PLN levels and to quantify this relationship within a population pharmacokinetic model. METHODS PLN and prednisone (PN) concentrations were measured in 396 samples from 19 healthy volunteers after oral ingestion of 80 mg PLN. Measurements in serum, ultrafiltrate, and saliva were performed with a recently validated liquid chromatography tandem mass spectrometry method. Population pharmacokinetic analysis was performed with nonlinear mixed effect modeling using NONMEM. RESULTS Salivary PLN levels correlated well with free serum PLN levels (r = 0.931, P < 0.01). A weaker correlation was found for PN (r = 0.318, P < 0.01), which may be explained by the finding that salivary PN levels mainly seemed to consist of PLN enzymatically converted to PN. Total and free serum PLN concentrations decreased over time after drug administration and showed a nonlinear mutual relationship, consistent with concentration-dependent protein binding. Modeled PLN pharmacokinetics corresponded with previous reports. Low to moderate interindividual variability was found for V/F and CL/F (coefficients of variation were 13.8% and 14.6%, respectively). Free and salivary PLN showed a nonlinear relationship with total PLN. An equation predicting free serum levels from salivary levels was successfully derived from the data. CONCLUSIONS This study is the first to describe the relationship between salivary and (free) serum PLN using a population pharmacokinetic model. Salivary PLN was found to be a reliable predictor of free and total serum PLN in healthy volunteers. The results of this study encourage further exploration of the use of saliva as a noninvasive and feasible method for drug monitoring of PLN.
Collapse
|
14
|
Alten R. Chronotherapy with modified-release prednisone in patients with rheumatoid arthritis. Expert Rev Clin Immunol 2014; 8:123-33. [DOI: 10.1586/eci.11.95] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
|
15
|
Zhang H, Shahbazi MA, Mäkilä EM, da Silva TH, Reis RL, Salonen JJ, Hirvonen JT, Santos HA. Diatom silica microparticles for sustained release and permeation enhancement following oral delivery of prednisone and mesalamine. Biomaterials 2013; 34:9210-9. [DOI: 10.1016/j.biomaterials.2013.08.035] [Citation(s) in RCA: 92] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Accepted: 08/10/2013] [Indexed: 02/07/2023]
|
16
|
Sediq A, Kubbinga M, Langguth P, Dressman J. The impact of the EMA change in definition of "dose" on the BCS dose-solubility ratio: a review of the biowaiver monographs. J Pharm Sci 2013; 103:65-70. [PMID: 24338749 DOI: 10.1002/jps.23769] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Revised: 10/11/2013] [Accepted: 10/11/2013] [Indexed: 11/06/2022]
Abstract
The Biopharmaceutics Classification System (BCS) defines the solubility characteristics of an active pharmaceutical substance based on its dose-solubility ratio: for highly soluble drugs this ratio is less than 250 mL over a defined pH range. Prior to the revision of the European Medicines Agency (EMA, formerly EMEA) guideline in 2010, the "dose" in this ratio was consistently defined by the US FDA, the EMA, and the WHO biowaiver guidelines as the highest dosage strength. However, in the revised EMA guideline, the dose is defined as the highest single dose administered according to the Summary of Product Characteristics. The new EMA criterion for highly soluble may be closer to the actual conditions of use, but it is not in line with the dose that would be used in the in vivo bioequivalence study. This paper evaluates the impact on the BCS classification of the active pharmaceutical ingredients of the published biowaiver monographs and discusses the consequences of the possible change in classification on biowaiver recommendations. Using the current definition of dose by the EMA, the biowaiver recommendations for metoclopramide hydrochloride and verapamil hydrochloride are no longer valid according to EMA criteria. For prednisolone and prednisone, a reevaluation of the biowaiver recommendation, taking into account the usual dosing levels, seems appropriate.
Collapse
Affiliation(s)
- Ahmad Sediq
- National Institute of Public Health and the Environment, Bilthoven, The Netherlands
| | | | | | | |
Collapse
|
17
|
Derendorf H, Ruebsamen K, Clarke L, Schaeffler A, Kirwan JR. Pharmacokinetics of modified-release prednisone tablets in healthy subjects and patients with rheumatoid arthritis. J Clin Pharmacol 2013; 53:326-33. [PMID: 23444285 DOI: 10.1177/0091270012444315] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2011] [Accepted: 02/27/2012] [Indexed: 01/04/2023]
Abstract
In rheumatoid arthritis (RA), nocturnal release of proinflammatory cytokines is not adequately counteracted by endogenous glucocorticoid and is associated with symptoms of morning stiffness and pain. Taking exogenous glucocorticoid during the night reduces morning stiffness significantly more than treatment at the conventional time in the morning, although waking to take tablets is unacceptable for patients. Modified-release prednisone tablets were developed to allow administration at bedtime for programmed delivery of glucocorticoid during the night. Single-center crossover studies were conducted, each in ≤24 healthy subjects, to compare the pharmacokinetics of a single 5-mg oral dose of modified-release prednisone and conventional prednisone, as well as the effect of food on bioavailability. There was no substantial difference in pharmacokinetic parameters of the formulations apart from the programmed delay in release of glucocorticoid from the modified-release tablets (C(max) 97%, AUC(0-∞) 101%, 90% confidence intervals within the requisite range for bioequivalence). Administration after a full or light meal did not affect pharmacokinetic characteristics, but bioavailability was reduced under fasted conditions. Pharmacokinetic evaluation in 9 patients with RA confirmed that modified-release prednisone tablets taken at bedtime (around 22:00 h) with or after an evening meal result in programmed release of glucocorticoid 4 to 6 hours after intake.
Collapse
|
18
|
|
19
|
Nair A, Abrahamsson B, Barends DM, Groot D, Kopp S, Polli JE, Shah VP, Dressman JB. Biowaiver Monographs for Immediate-Release Solid Oral Dosage Forms: Primaquine Phosphate. J Pharm Sci 2012; 101:936-45. [DOI: 10.1002/jps.23006] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2011] [Revised: 11/08/2011] [Accepted: 11/15/2011] [Indexed: 01/15/2023]
|
20
|
Ruiter AFC, Teeninga N, Nauta J, Endert E, Ackermans MT. Determination of unbound prednisolone, prednisone and cortisol in human serum and saliva by on-line solid-phase extraction liquid chromatography tandem mass spectrometry and potential implications for drug monitoring of prednisolone and prednisone in sali. Biomed Chromatogr 2011; 26:789-96. [DOI: 10.1002/bmc.1730] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2011] [Accepted: 09/09/2011] [Indexed: 11/09/2022]
Affiliation(s)
- A. F. C. Ruiter
- Department of Clinical Chemistry; Laboratory of Endocrinology; Academic Medical Center; Amsterdam; The Netherlands
| | - N. Teeninga
- Department of Pediatrics; Erasmus Medical Center-Sophia Children's Hospital; Rotterdam; The Netherlands
| | - J. Nauta
- Department of Pediatrics; Erasmus Medical Center-Sophia Children's Hospital; Rotterdam; The Netherlands
| | - E. Endert
- Department of Clinical Chemistry; Laboratory of Endocrinology; Academic Medical Center; Amsterdam; The Netherlands
| | - M. T. Ackermans
- Department of Clinical Chemistry; Laboratory of Endocrinology; Academic Medical Center; Amsterdam; The Netherlands
| |
Collapse
|
21
|
Strauch S, Jantratid E, Dressman JB, Junginger HE, Kopp S, Midha KK, Shah VP, Stavchansky S, Barends DM. Biowaiver monographs for immediate release solid oral dosage forms: mefloquine hydrochloride. J Pharm Sci 2011; 100:11-21. [PMID: 20602454 DOI: 10.1002/jps.22249] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Literature data relevant to the decision to allow a waiver of in vivo bioequivalence (BE) testing for the approval of immediate release solid oral dosage forms containing mefloquine hydrochloride as the only active pharmaceutical ingredient (API) are reviewed. The solubility and permeability data of mefloquine hydrochloride as well as its therapeutic use and therapeutic index, its pharmacokinetic properties, data related to the possibility of excipient interactions and reported BE/bioavailability studies were taken into consideration. Mefloquine hydrochloride is not a highly soluble API. Since no data on permeability are available, it cannot be classified according to the Biopharmaceutics Classification System with certainty. Additionally, several studies in the literature failed to demonstrate BE of existing products. For these reasons, the biowaiver cannot be justified for the approval of new multisource drug products containing mefloquine hydrochloride. However, scale-up and postapproval changes (HHS-FDA SUPAC) levels 1 and 2 and most EU type I variations may be approvable without in vivo BE, using the dissolution tests described in these regulatory documents.
Collapse
Affiliation(s)
- S Strauch
- Institute of Pharmaceutical Technology, Goethe University, Frankfurt am Main, Germany
| | | | | | | | | | | | | | | | | |
Collapse
|
22
|
Granero G, Longhi M, Mora M, Junginger H, Midha K, Shah V, Stavchansky S, Dressman J, Barends D. Biowaiver Monographs for Immediate Release Solid Oral Dosage Forms: Furosemide. J Pharm Sci 2010; 99:2544-56. [DOI: 10.1002/jps.22030] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
23
|
Jantratid E, Strauch S, Becker C, Dressman J, Amidon G, Junginger H, Kopp S, Midha K, Shah V, Stavchansky S, Barends D. Biowaiver monographs for immediate release solid oral dosage forms: Doxycycline hyclate**A project of the International Pharmaceutical Federation (FIP), BCS and Biowaiver, www.fip.org/bcs.**This article reflects the scientific opinion of the authors and not the policies of regulating agencies, the International Pharmaceutical Federation (FIP) and the World Health Organization (WHO). J Pharm Sci 2010; 99:1639-53. [DOI: 10.1002/jps.21954] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
24
|
Becker C, Dressman JB, Junginger HE, Kopp S, Midha KK, Shah VP, Stavchansky S, Barends DM. Biowaiver monographs for immediate release solid oral dosage forms: rifampicin. J Pharm Sci 2009; 98:2252-67. [PMID: 19160441 DOI: 10.1002/jps.21624] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Literature data relevant to the decision to allow a waiver of in vivo bioequivalence (BE) testing for the approval of new multisource and reformulated immediate release (IR) solid oral dosage forms containing rifampicin as the only Active Pharmaceutical Ingredient (API) are reviewed. Rifampicin's solubility and permeability, its therapeutic use and index, pharmacokinetics, excipient interactions and reported BE/bioavailability (BA) problems were taken into consideration. Solubility and absolute BA data indicate that rifampicin is a BCS Class II drug. Of special concern for biowaiving is that many reports of failure of IR solid oral dosage forms of rifampicin to meet BE have been published and the reasons for these failures are yet insufficiently understood. Moreover, no reports were identified in which in vitro dissolution was shown to be predictive of nonequivalence among products. Therefore, a biowaiver based approval of rifampicin containing IR solid oral dosage forms cannot be recommended for either new multisource drug products or for major scale-up and postapproval changes (variations) to existing drug products.
Collapse
Affiliation(s)
- C Becker
- Institute of Pharmaceutical Technology, J.W. Goethe University, Frankfurt am Main, Germany
| | | | | | | | | | | | | | | |
Collapse
|
25
|
Chuasuwan B, Binjesoh V, Polli JE, Zhang H, Amidon GL, Junginger HE, Midha KK, Shah VP, Stavchansky S, Dressman JB, Barends DM. Biowaiver monographs for immediate release solid oral dosage forms: diclofenac sodium and diclofenac potassium. J Pharm Sci 2009; 98:1206-19. [PMID: 18752289 DOI: 10.1002/jps.21525] [Citation(s) in RCA: 104] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Literature data are reviewed regarding the scientific advisability of allowing a waiver of in vivo bioequivalence (BE) testing for the approval of immediate release (IR) solid oral dosage forms containing either diclofenac potassium and diclofenac sodium. Within the biopharmaceutics classification system (BCS), diclofenac potassium and diclofenac sodium are each BCS class II active pharmaceutical ingredients (APIs). However, a biowaiver can be recommended for IR drug products of each salt form, due to their therapeutic use, therapeutic index, pharmacokinetic properties, potential for excipient interactions, and performance in reported BE/bioavailability (BA) studies, provided: (a) test and comparator contain the same diclofenac salt; (b) the dosage form of the test and comparator is identical; (c) the test product contains only excipients present in diclofenac drug products approved in ICH or associated countries in the same dosage form, for instance as presented in this paper; (d) test drug product and comparator dissolve 85% in 30 min or less in 900 mL buffer pH 6.8, using the paddle apparatus at 75 rpm or the basket apparatus at 100 rpm; and (e) test product and comparator show dissolution profile similarity in pH 1.2, 4.5, and 6.8.
Collapse
Affiliation(s)
- B Chuasuwan
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Maryland, Baltimore, Maryland, USA
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
26
|
Grube S, Langguth P, Junginger H, Kopp S, Midha K, Shah V, Stavchansky S, Dressman J, Barends D. Biowaiver monographs for immediate release solid oral dosage forms: Quinidine sulfate. J Pharm Sci 2009; 98:2238-51. [DOI: 10.1002/jps.21606] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
27
|
Biowaiver Monographs for Immediate Release Solid Oral Dosage Forms: Aciclovir. J Pharm Sci 2008; 97:5061-73. [DOI: 10.1002/jps.21392] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
28
|
Granero G, Longhi M, Becker C, Junginger H, Kopp S, Midha K, Shah V, Stavchansky S, Dressman J, Barends D. Biowaiver Monographs for Immediate Release Solid Oral Dosage Forms: Acetazolamide. J Pharm Sci 2008; 97:3691-9. [DOI: 10.1002/jps.21282] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
|
29
|
Becker C, Dressman J, Amidon G, Junginger H, Kopp S, Midha K, Shah V, Stavchansky S, Barends D. Biowaiver Monographs for Immediate Release Solid Oral Dosage Forms: Pyrazinamide**A project of the International Pharmaceutical Federation FIP, Groupe BCS, www.fip.org/bcs.**This article reflects the scientific opinion of the authors and not the policies of regulating agencies. J Pharm Sci 2008; 97:3709-20. [DOI: 10.1002/jps.21250] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
30
|
Stosik A, Junginger H, Kopp S, Midha K, Shah V, Stavchansky S, Dressman J, Barends D. Biowaiver Monographs for Immediate Release Solid Oral Dosage forms: Metoclopramide Hydrochloride. J Pharm Sci 2008; 97:3700-8. [DOI: 10.1002/jps.21276] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
31
|
Becker C, Dressman JB, Amidon GL, Junginger HE, Kopp S, Midha KK, Shah VP, Stavchansky S, Barends DM. Biowaiver Monographs for Immediate Release Solid Oral Dosage Forms: Ethambutol Dihydrochloride**This paper reflects the scientific opinion of the authors and not the policies of regulating agencies.**A project of the International Pharmaceutical Federation FIP, Groupe BCS, http://www.fip.org/bcs. J Pharm Sci 2008; 97:1350-60. [PMID: 17879380 DOI: 10.1002/jps.21061] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Literature data relevant to the decision to allow a waiver of in vivo bioequivalence (BE) testing for the approval of immediate release (IR) solid oral dosage forms containing ethambutol dihydrochloride as the only active pharmaceutical ingredient (API) are reviewed. Ethambutol dihydrochloride is a Biopharmaceutics Classification System (BCS) Class III drug with permeability properties approaching the border between BCS Class I and III. BE problems of ethambutol formulations containing different excipients and different dosages forms have not been reported and hence the risk of bioinequivalence caused by excipients is low. Ethambutol has a narrow therapeutic index related to ocular toxicity. However, as long as the prescribers' information of the test product stipulates the need for regular monitoring of ocular toxicity, the additional patient risk is deemed acceptable. It is concluded that a biowaiver can be recommended for IR solid oral dosage forms provided that the test product (a) contains only excipients present in ethambutol IR solid oral drug products approved in ICH or associated countries, for instance as presented in this paper, (b) complies with the criteria for "very rapidly dissolving" and (c) has a prescribers' information indicating the need for testing the patient's vision prior to initiating ethambutol therapy and regularly during therapy.
Collapse
Affiliation(s)
- C Becker
- Institute of Pharmaceutical Technology, J.W. Goethe University, Frankfurt am Main, Germany
| | | | | | | | | | | | | | | | | |
Collapse
|