Pharmacokinetics, Pharmacodynamics
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Mechanisms and Clinical Significance of Pharmacokinetic-Based Drug-Drug Interactions With
DMD Fast Forward. Published on November 15, 2018 as DOI: 10.1124/dmd.118.084905 This article has not been copyedited and formatted. The final version may differ from this version. DMD # 84905 Title Mechanisms and Clinical Significance of Pharmacokinetic-based Drug-drug Interactions with Drugs Approved by the U.S. Food and Drug Administration in 2017 Jingjing Yu, Ichiko D. Petrie, René H. Levy, and Isabelle Ragueneau-Majlessi Department of Pharmaceutics, School of Pharmacy, University of Washington, Seattle, WA, USA (J.Y., I.P., R.H.L. I.R-M.) Downloaded from dmd.aspetjournals.org at ASPET Journals on October 3, 2021 1 DMD Fast Forward. Published on November 15, 2018 as DOI: 10.1124/dmd.118.084905 This article has not been copyedited and formatted. The final version may differ from this version. DMD # 84905 Running Title Page a) Running title: A review of clinical DDIs in 2017 NDAs b) Corresponding author: Jingjing Yu, Drug Interaction Database (DIDB) Program, Department of Pharmaceutics, School of Pharmacy, University of Washington, Box 357610, Seattle, WA 98195, Phone: 206.221.2856, Fax: 206.543.3204, E-mail: [email protected] c) Number of text pages: 18 Number of tables: 2 Downloaded from Number of figures: 2 Number of references: 38 Number of words in the Abstract: 242 dmd.aspetjournals.org Number of words in the Introduction: 227 Number of words in the Discussion: 619 d) Abbreviations: at ASPET Journals on October 3, 2021 AUC, area under the time-plasma concentration curve; BCRP, breast cancer resistance protein; Cmax, maximum plasma -
"Macrolides"? Classify Each Drug in This Chapter As a Macrolide Or Azalide, and As an Antibiotic Or Semi-Synthetic Derivative
STUDY GUIDE THE MACROLIDE/AZALIDE ANTIMICROBIAL AGENTS 1. Why are these antibiotics derivatives called "macrolides"? Classify each drug in this chapter as a macrolide or azalide, and as an antibiotic or semi-synthetic derivative. 2. What are the key structural differences between erythromycin, clarithromycin, azithromycin and dirithromycin? 3. Generally how does spiramycin and josamycin differ in structure from the commercial macrolides/azalides (2 reasons)? 4. What are the “ketolides and how do they differ in structure from the commercial macrolides? 5. What is the biosynthetic source of erythromycin? What is the lactone moiety of erythromycin called? What sugar moieties are present and what are their properties? 6. What hydrolysis product forms from erythromycin in aqueous acid or base? What is the significance of this reaction? Can it occur with other macrolides? 7. When does the “intramolecular cyclization” reaction occur with erythromycin? What is it's significance (two reasons) and how does it occur? Which functional groups are important for this reaction? 8. What salt forms of erythromycin are available? Which are water soluble? Which are water-insoluble? How is each salt form formulated and used (oral or parenteral)? 9. What ester and ester salt derivatives of erythromycin are available? What is the estolate? How is each salt form formulated and used (oral or parenteral)? What are the advantages of these esters dosage forms? 10. How does clarithromycin differ in structure from erythromycin? Why was this macrolide developed (the role of the 6-methoxy)? 11. How does azithromycin differ in structure from erythromycin? Why was this macrolide developed? 12. How does dirithromycin differ in structure from erythromycin? Why was this macrolide developed? What is the active form of this prodrug? 13. -
35 Cyproterone Acetate and Ethinyl Estradiol Tablets 2 Mg/0
PRODUCT MONOGRAPH INCLUDING PATIENT MEDICATION INFORMATION PrCYESTRA®-35 cyproterone acetate and ethinyl estradiol tablets 2 mg/0.035 mg THERAPEUTIC CLASSIFICATION Acne Therapy Paladin Labs Inc. Date of Preparation: 100 Alexis Nihon Blvd, Suite 600 January 17, 2019 St-Laurent, Quebec H4M 2P2 Version: 6.0 Control # 223341 _____________________________________________________________________________________________ CYESTRA-35 Product Monograph Page 1 of 48 Table of Contents PART I: HEALTH PROFESSIONAL INFORMATION ....................................................................... 3 SUMMARY PRODUCT INFORMATION ............................................................................................. 3 INDICATION AND CLINICAL USE ..................................................................................................... 3 CONTRAINDICATIONS ........................................................................................................................ 3 WARNINGS AND PRECAUTIONS ....................................................................................................... 4 ADVERSE REACTIONS ....................................................................................................................... 13 DRUG INTERACTIONS ....................................................................................................................... 16 DOSAGE AND ADMINISTRATION ................................................................................................ 20 OVERDOSAGE .................................................................................................................................... -
Therapeutic Potential of Nicotinamide Adenine Dinucleotide (NAD) T ∗ Marta Arenas-Jala,B, , J.M
European Journal of Pharmacology 879 (2020) 173158 Contents lists available at ScienceDirect European Journal of Pharmacology journal homepage: www.elsevier.com/locate/ejphar Therapeutic potential of nicotinamide adenine dinucleotide (NAD) T ∗ Marta Arenas-Jala,b, , J.M. Suñé-Negrea, Encarna García-Montoyaa a Pharmacy and Pharmaceutical Technology Department (Faculty of Pharmacy and Food Sciences), University of Barcelona, Barcelona, Spain b ICN2 – Catalan Institute of Nanoscience and Nanotechnology (Autonomous University of Barcelona), Bellaterra (Barcelona), Spain ARTICLE INFO ABSTRACT Keywords: Nicotinamide adenine nucleotide (NAD) is a small ubiquitous hydrophilic cofactor that participates in several NAD aspects of cellular metabolism. As a coenzyme it has an essential role in the regulation of energetic metabolism, Metabolism but it is also a cosubstrate for enzymes that regulate fundamental biological processes such as transcriptional Therapeutic potential regulation, signaling and DNA repairing among others. The fluctuation and oxidative state of NAD levels reg- Drug discovery ulate the activity of these enzymes, which is translated into marked effects on cellular function. While alterations Supplementation in NAD homeostasis are a common feature of different conditions and age-associated diseases, in general, in- creased NAD levels have been associated with beneficial health effects. Due to its therapeutic potential, the interest in this molecule has been renewed, and the regulation of NAD metabolism has become an attractive target for drug discovery. In fact, different approaches to replenish or increase NAD levels have been tested, including enhancement of biosynthesis and inhibition of NAD breakdown. Despite further research is needed, this review provides an overview and update on NAD metabolism, including the therapeutic potential of its regulation, as well as pharmacokinetics, safety, precautions and formulation challenges of NAD supplementa- tion. -
Metabolic-Hydroxy and Carboxy Functionalization of Alkyl Moieties in Drug Molecules: Prediction of Structure Influence and Pharmacologic Activity
molecules Review Metabolic-Hydroxy and Carboxy Functionalization of Alkyl Moieties in Drug Molecules: Prediction of Structure Influence and Pharmacologic Activity Babiker M. El-Haj 1,* and Samrein B.M. Ahmed 2 1 Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, University of Science and Technology of Fujairah, Fufairah 00971, UAE 2 College of Medicine, Sharjah Institute for Medical Research, University of Sharjah, Sharjah 00971, UAE; [email protected] * Correspondence: [email protected] Received: 6 February 2020; Accepted: 7 April 2020; Published: 22 April 2020 Abstract: Alkyl moieties—open chain or cyclic, linear, or branched—are common in drug molecules. The hydrophobicity of alkyl moieties in drug molecules is modified by metabolic hydroxy functionalization via free-radical intermediates to give primary, secondary, or tertiary alcohols depending on the class of the substrate carbon. The hydroxymethyl groups resulting from the functionalization of methyl groups are mostly oxidized further to carboxyl groups to give carboxy metabolites. As observed from the surveyed cases in this review, hydroxy functionalization leads to loss, attenuation, or retention of pharmacologic activity with respect to the parent drug. On the other hand, carboxy functionalization leads to a loss of activity with the exception of only a few cases in which activity is retained. The exceptions are those groups in which the carboxy functionalization occurs at a position distant from a well-defined primary pharmacophore. Some hydroxy metabolites, which are equiactive with their parent drugs, have been developed into ester prodrugs while carboxy metabolites, which are equiactive to their parent drugs, have been developed into drugs as per se. -
( 12 ) United States Patent
US010376507B2 (12 ) United States Patent (10 ) Patent No. : US 10 , 376 , 507 B2 Srinivasan et al. (45 ) Date of Patent: Aug. 13 , 2019 CRESEMBA® ( isavuconazonium sulfate ) , Highlights of Prescrib (54 ) METHOD OF TREATING A PATIENT WITH ing Information , Label ; Patient Information approved by the U . S . A CYP3A4 SUBSTRATE DRUG Food and Drug Administration ; Astellas Pharma US , Inc. ( Licensed from Basilea Pharmaceutics International Ltd . ) , Illinois, USA , Ini (71 ) Applicant: Bow River LLC , Corona Del Mar , CA tial U . S . Approval: 2015 , Revised Mar. 2015 , Reference ID : 3712237, ( US ) 28 pages . DIFLUCAN® ( fluconazole ), Label ; Patient Information , Reference ( 72 ) Inventors : Sundar Srinivasan , Corona Del Mar, ID : 3650838 , Roerig , Division of Pfizer Inc ., New York , NY, Revised Mar. 2013 , 35 pages. CA (US ) ; Christina Chow , Seattle , WA NIZORAL® (ketoconazole )Label ; Patient Information approved by (US ) the U . S . Food and Drug Administration , Reference ID : 3458324 , Copyright 2014 Janssen Pharmaceuticals, Inc . , New Jersey, USA , ( 73 ) Assignee : BOW RIVER LLC , Corona del Mar , Revised Feb . 2014 , 23 pages . NOXAFIL® (posaconazole ) , Highlights of Prescribing Informa CA (US ) tion , Label ; Patient Information approved by the U . S . Food and Drug Administration ; Copyright © 2006 , 2010 , 2013 , 2014 Merck ( * ) Notice : Subject to any disclaimer , the term of this Sharp & Dohme Corp . , a subsidiary of Merck & Co ., Inc ., New patent is extended or adjusted under 35 Jersey , USA , Revised Sep . 2016 , Reference ID : 3983525, 37 pages . U . S . C . 154 (b ) by 0 days. ORAVIG® (miconazole ) , Highlights of Prescribing Information , Label ; Patient Information approved by the U . S . Food and Drug Administration ; Copyright 2012 Praelia Pharmaceuticals , Inc . , North (21 ) Appl. -
Fasted and Fed State Human Duodenal Fluids: Characterization, Drug Solubility, and Comparison to Simulated Fluids and with Human Bioavailability
European Journal of Pharmaceutics and Biopharmaceutics 163 (2021) 240–251 Contents lists available at ScienceDirect European Journal of Pharmaceutics and Biopharmaceutics journal homepage: www.elsevier.com/locate/ejpb Fasted and fed state human duodenal fluids: Characterization, drug solubility, and comparison to simulated fluids and with human bioavailability D. Dahlgren a, M. Venczel b,c, J.-P. Ridoux b,c, C. Skjold¨ a, A. Müllertz d, R. Holm e, P. Augustijns f, P.M. Hellstrom¨ g, H. Lennernas¨ a,* a Department of Pharmaceutical Biosciences, Biopharmaceutics, Uppsala University, Sweden b Global CMC Development Sanofi, Frankfurt, Germany c Global CMC Development Sanofi, Vitry, France d Physiological Pharmaceutics, University of Copenhagen, Copenhagen, Denmark e Drug Product Development, Janssen R&D, Johnson & Johnson, Beerse, Belgium f Drug Delivery and Disposition, KU Leuven, Leuven, Belgium g Department of Medical Sciences, Gastroenterology/Hepatology, Uppsala University, Sweden ARTICLE INFO ABSTRACT Keywords: Accurate in vivo predictions of intestinal absorption of low solubility drugs require knowing their solubility in Bioavailability physiologically relevant dissolution media. Aspirated human intestinal fluids (HIF) are the gold standard, fol Food effects lowed by simulated intestinal HIF in the fasted and fed state (FaSSIF/FeSSIF). However, current HIF charac Drug solubility terization data vary, and there is also some controversy regarding the accuracy of FaSSIF and FeSSIF for Human intestinal fluids predicting drug solubility in HIF. This study aimed at characterizing fasted and fed state duodenal HIF from 16 Drug absorption Drug dissolution human volunteers with respect to pH, buffer capacity, osmolarity, surface tension, as well as protein, phos Drug delivery pholipid, and bile salt content. -
Inbrija, INN-Levodopa
ANNEX I SUMMARY OF PRODUCT CHARACTERISTICS 1 1. NAME OF THE MEDICINAL PRODUCT Inbrija 33 mg inhalation powder, hard capsules 2. QUALITATIVE AND QUANTITATIVE COMPOSITION Each hard capsule contains 42 mg levodopa. Each delivered dose contains 33 mg levodopa. For the full list of excipients, see section 6.1. 3. PHARMACEUTICAL FORM Inhalation powder, hard capsule. White opaque capsules containing white powder, with “A42” printed in black on the cap of the capsule and two black bands printed on the body of the capsule. 4. CLINICAL PARTICULARS 4.1 Therapeutic indications Inbrija is indicated for the intermittent treatment of episodic motor fluctuations (OFF episodes) in adult patients with Parkinson’s disease (PD) treated with a levodopa/dopa-decarboxylase inhibitor. 4.2 Posology and method of administration Posology Patients should be on a stable levodopa/dopa-decarboxylase inhibitor (e.g. carbidopa or benserazide) regimen before starting Inbrija. Patients selected for treatment with Inbrija should be able to recognize the onset of their 'OFF' symptoms and be capable of preparing the inhaler or else have a responsible care giver able to prepare the inhaler for them when required. Inbrija should be inhaled when symptoms, motor or non-motor, of an OFF period start to return. The recommended dose of Inbrija is 2 hard capsules up to 5 times per day each delivering 33 mg levodopa. The maximum daily dose of Inbrija should not exceed 10 capsules (330 mg). It is not recommended to take more than 2 capsules per OFF period. Exceeding the recommended dose may lead to increased levodopa associated adverse reactions. -
Pharmacokinetics, Pharmacodynamics and Drug
pharmaceutics Review Pharmacokinetics, Pharmacodynamics and Drug–Drug Interactions of New Anti-Migraine Drugs—Lasmiditan, Gepants, and Calcitonin-Gene-Related Peptide (CGRP) Receptor Monoclonal Antibodies Danuta Szkutnik-Fiedler Department of Clinical Pharmacy and Biopharmacy, Pozna´nUniversity of Medical Sciences, Sw.´ Marii Magdaleny 14 St., 61-861 Pozna´n,Poland; [email protected] Received: 28 October 2020; Accepted: 30 November 2020; Published: 3 December 2020 Abstract: In the last few years, there have been significant advances in migraine management and prevention. Lasmiditan, ubrogepant, rimegepant and monoclonal antibodies (erenumab, fremanezumab, galcanezumab, and eptinezumab) are new drugs that were launched on the US pharmaceutical market; some of them also in Europe. This publication reviews the available worldwide references on the safety of these anti-migraine drugs with a focus on the possible drug–drug (DDI) or drug–food interactions. As is known, bioavailability of a drug and, hence, its pharmacological efficacy depend on its pharmacokinetics and pharmacodynamics, which may be altered by drug interactions. This paper discusses the interactions of gepants and lasmiditan with, i.a., serotonergic drugs, CYP3A4 inhibitors, and inducers or breast cancer resistant protein (BCRP) and P-glycoprotein (P-gp) inhibitors. In the case of monoclonal antibodies, the issue of pharmacodynamic interactions related to the modulation of the immune system functions was addressed. It also focuses on the effect of monoclonal antibodies on expression of class Fc gamma receptors (FcγR). Keywords: migraine; lasmiditan; gepants; monoclonal antibodies; drug–drug interactions 1. Introduction Migraine is a chronic neurological disorder characterized by a repetitive, usually unilateral, pulsating headache with attacks typically lasting from 4 to 72 h. -
Addyi Generic Name: Flibanserin Manufacturer
Brand Name: Addyi Generic Name: Flibanserin Manufacturer: Sprout Pharmaceuticals Drug Class: Central Nervous System Agent, Serotonin Agonist, Dopamine antagonist Uses: Labeled Uses: Indicated for the treatment of premenopausal women with acquired, generalized hypoactive sexual desire disorder (HSDD) as characterized by low sexual desire that causes marked distress or interpersonal difficulty and is NOT due to: A co-existing medical or psychiatric condition, problems within the relationship, or the effects of a medication or other drug substance. Unlabeled Uses: none. Mechanism of Action: The mechanism of action for flibanserin in the treatment of hypoactive sexual desire disorder is unknown. Flibanserin has high affinity for serotonin (5-hydroxytryptamine or 5-HT) 1A receptors, as an agonist, and 5-HT2A receptors, as an antagonist, and moderate affinity for 5- HT2B, 5-HT2C, and dopamine D4 receptors as an antagonist Pharmacokinetics: Absorption: Tmax 0.75 hours Vd 50L t ½ 11 hours Clearance Not reported Protein binding 98% (albumin) Bioavailability 33% Metabolism: Flibanserin is extensively metabolized primarily by CYP3A4 and, to a lesser extent, CYP2C19 to at least 35 metabolites, with most of the metabolites occurring in low concentrations in plasma. Elimination: Flibanserin is primarily excreted through the kidneys in to urine (44%) and feces (51%). Two metabolites could be characterized that showed plasma concentration similar to that achieved with flibanserin: 6,21-dihydroxy-flibanserin-6,21-disulfate and 6- hydroxy-flibanserin-6-sulfate. These two metabolites are inactive. Efficacy: Katz M, DeRogatis LR, Ackerman R, et al. Efficacy of flibanserin in women with hypoactive sexual desire disorder: results from the BEGONIA trial. J Sex Med. -
Pharmacokinetic Interactions of Pioglitazone
Department of Clinical Pharmacology University of Helsinki Finland PHARMACOKINETIC INTERACTIONS OF PIOGLITAZONE Tiina Jaakkola ACADEMIC DISSERTATION To be presented, with the permission of the Medical Faculty of the University of Helsinki, for public examination in Auditorium 2 of Biomedicum, on August 24th, 2007, at 12 noon. Helsinki 2007 JJaakkola_Tiina_vaitos.inddaakkola_Tiina_vaitos.indd 1 117.7.20077.7.2007 221:11:231:11:23 Supervisors: Professor Pertti Neuvonen, MD Department of Clinical Pharmacology University of Helsinki Helsinki, Finland Docent Janne Backman, MD Department of Clinical Pharmacology University of Helsinki Helsinki, Finland Reviewers: Docent Kimmo Malminiemi, MD, MSc Department of Pharmacology, Clinical Pharmacology and Toxicology University of Tampere Tampere, Finland Professor emeritus Pertti Pentikäinen, MD Department of Medicine University of Helsinki Helsinki, Finland Opponent: Professor Kari Kivistö, MD Department of Pharmacology, Clinical Pharmacology and Toxicology University of Tampere Tampere, Finland ISBN 978-952-92-2224-7 (paperback) ISBN 978-952-10-4020-7 (PDF, http://ethesis.helsinki.fi ) Helsinki 2007 Yliopistopaino JJaakkola_Tiina_vaitos.inddaakkola_Tiina_vaitos.indd 2 117.7.20077.7.2007 221:11:551:11:55 JJaakkola_Tiina_vaitos.inddaakkola_Tiina_vaitos.indd 3 117.7.20077.7.2007 221:11:551:11:55 CONTENTS CONTENTS ABBREVIATIONS.......................................................................................................................................... 6 LIST OF ORIGINAL PUBLICATIONS....................................................................................................... -
207145Orig1s000
CENTER FOR DRUG EVALUATION AND RESEARCH APPLICATION NUMBER: 207145Orig1s000 OTHER REVIEW(S) CSS Consult: NDA 207,145 Safinamide M E M O R A N D U M Department of Health and Human Services Food and Drug Administration Center for Drug Evaluation and Research * Date: March 8, 2017 To: Billy Dunn, M.D., Director Division of Neurology Products Through: Martin Rusinowitz, M.D., Medical Officer Silvia Calderon, Ph.D., Pharmacologist Controlled Substance Staff From: Alicja Lerner, M.D., Ph.D., Medical Officer Controlled Substance Staff Subject: Erratum-CSS Review of NDA 207,145 dated December 29, 2016 (Author: Lerner, Alicja) AMENDMENT This memorandum corrects an error and changes the title of Table 4, page 14, in the previously submitted CSS review dated Dec 29, 2016. In our prior review, we erroneously listed the subject population reporting the tabulated adverse events as comprising only healthy volunteers (HV). However, as indicated in the revised Table Title, the data derived from Phase 2 and Phase 3 controlled trials. This erratum does not change the conclusions or recommendations in the previous CSS review. Table 4 should read: Table 4. Summary of Selected Abuse Potential Adverse Events from all Completed Safinamide Phase 2 and Phase 3 Controlled Trials for PD – All Pooled Studies (based on the table 11, page 27, 8 factor-analysis). 1 of 2 Reference ID: 4066812 CSS Consult: NDA 207,145 Safinamide Body System Or Organ Class All Safinamide Placebo pool pool N=919 N=1516 (n, %) (n, %) Patients with at least one abuse potential event 230 (15.2)