Pharmacy and Pharmaceutical Sciences Commons^™

A Novel Acetaminophen Soft-Chew Formulation Produced Via Hot Melt Extrusion With Inline Near-Infrared Monitoring As A Process Analytical Technology Tool, Pengchong Xu

Electronic Theses and Dissertations

People suffer dysphagia when swallowing hard tablets and capsules. Gelatin based soft chewable tablets was used as an alternative and novel drug delivery format to overcome dysphagia. But conventional method of producing gelatin based soft chewable tablets has many potential issues. The objective of this study is using glycerol and hot-melt extrusion technique to address potential issues and optimizing the formulation. Gelatin (15%), acetaminophen (30%), saccharin (1.5%), xylitol (6.5%), sodium chloride (2%) and six different ratios of water (45-0%) and glycerol (0-45%) were used in seven formulations. The extrusion process temperature of formulation 1-6 and formulation 7 were 90 ëšc …

Efforts To Reduce Concomitant Opioid And Benzodiazepine Prescribing At The Lexington Veterans Affairs Medical Center, Kaitlyn A. Staton

MPA/MPP/MPFM Capstone Projects

The United States is in the throes of an opioid epidemic. Any person who uses an opioid medication may experience an intentional or unintentional overdose. An overdose is more likely to occur when an individual ingests an opioid in combination with certain classes of medications, such as benzodiazepines or nonbenzodiazepines (Z-drugs). These medications are more likely to cause sedation and respiratory depression when taken together. Veterans, due to their unique mental and physical health challenges, are more likely to experience an overdose when they receive a combination of opioid therapy with benzodiazepine or Z-drug therapy as opposed to a single …

Regulatory Issues Concerning The Preclinical Testing Of Synthetic Peptides, Vamsi Vardhan Niraghatam

Master's Theses and Doctoral Dissertations

Any new drug or biological product undergoes rigorous testing in animals and humans for review by the United States Food and Drug Administration (FDA) before it becomes available for human use. A sponsor files an investigational new drug (IND) application with the FDA with supporting animal data, after which testing is continued with humans. There is sufficient guidance from the FDA on new small molecules and biological products as to which preclinical studies are to be conducted. Synthetic peptides present a unique scenario in which a case-by-case approach is needed for the conduct of preclinical studies. For peptides containing components …

Current Approaches And New Developments In The Pharmacological Management Of Tourette Syndrome., Julio Quezada, Keith A. Coffman

Manuscripts, Articles, Book Chapters and Other Papers

Tourette syndrome (TS) is a neurodevelopmental disorder of unknown etiology characterized by spontaneous, involuntary movements and vocalizations called tics. Once thought to be rare, TS affects 0.3-1% of the population. Tics can cause physical discomfort, emotional distress, social difficulties, and can interfere with education and desired activities. The pharmacologic treatment of TS is particularly challenging, as currently the genetics, neurophysiology, and neuropathology of this disorder are still largely unknown. However, clinical experience gained from treating TS has helped us better understand its pathogenesis and, as a result, derive treatment options. The strongest data exist for the antipsychotic agents, both typical …

Predictors Of Dental Opioid Analgesic Prescribing, Opioid Use And Dental Emergency Department Visits In The Mississippi Medicaid Population, Chukwuebuka Dibie

Electronic Theses and Dissertations

OBJECTIVES: The objectives of this study were: (1) to determine prevalence of opioid analgesics prescribing for non-ED dental related visits in the Mississippi Medicaid population, (2) to assess predictors of receiving opioid analgesics following non-ED dental related events among Mississippi Medicaid beneficiaries, and (3) to determine prevalence of opioid analgesic prescribing for dental related emergency departments (ED) visits in the Mississippi Medicaid population. METHODS: A retrospective, cross-sectional, observational database analysis using Mississippi Medicaid administrative claims data from January 1, 2015 to December 31, 2016. Beneficiaries with dental related visits were included in this study. Descriptive statistics were utilized to assess …

Fluorinated Organic Molecules For Medicinal Applications, Munia Sowaileh

Electronic Theses and Dissertations

The significant applications of fluorinated molecules in the pharmaceutical, agrochemical, and material sciences make them attractive synthetic targets. Difluoromethylation methods are of exceptional value and a limited number of techniques are available to perform that transformation. The primary method for introducing CF2 groups is through the use of difluoroenolates. Difluoroenolates can be generated from α-keto pentafluoro gem -diols under mild conditions. The process involves the cleavage of carbon-carbon bond and the release of trifluoroacetate. The release of trifluoroacetate is a versatile method to generate fluorinated molecules. We explored the utility of this method in generating various fluorinated moieties including α,α-difluoroketones, …

Novel Application Of Twin Screw Extruder On Production Of Diverse Formulations, Xingyou Ye

Electronic Theses and Dissertations

Twin-screw extruder has attracted considerable attention in the pharmaceutical industry as an alternative processing instrument due to its advantages compared to other conventional equipment, such as economical processing, small footprint, reduced in-process times, solvent-free and continuous processing. These superiorities have led to the application of twin-screw extruder to produce numerous dosage forms, including pellets, tablets and films. Many other formulations production can also be beneficial from the introduction of twin-screw extruder to the process. Nanocrystal formulations are promising drug delivery systems owing to their ability to enhance the bioavailability and maintain the stability of poorly water-soluble drugs. However, conventional methods …

Preparation And Evaluation Of Valacyclovir Hydrochloride Ocular Inserts By Hot Melt Extrusion Technique, Gauri Shadambikar

Electronic Theses and Dissertations

The objective of the current study was to investigate the processability of Hot Melt Extrusion to formulate Ocular Inserts of Valacyclovir Hydrochloride and Evaluate its drug release in vitro and in vivo. Valacyclovir is the prodrug of Acyclovir, which is used in treatment of ocular keratitis and HSV infections. The bioavailability of the prodrug is better than the acyclovir and it is proved to permeate extensively through the corneal barrier. The polymer of choice was Klucel® Pharm MF and JF grades for the study. To optimize the formulation, different physical mixtures of the polymers and plasticizers (PEG 400 and Propylene …

Synthesis Of (2r,6r)-Hydroxy-Norketamine For Evaluation Of Antidepressant Effects, Savannah Fairley

Honors Theses

Major Depressive Disorder, colloquially known as depression, is a devastating mental illness that affects a large portion of today's population. Following a drug side-effect that caused depression, the monoamine theory of depression was created, stating that depressive symptoms were caused by a decrease in concentrations of vital monoamine neurotransmitters at the synaptic cleft. Pharmaceutical remedies to combat depression were first introduced in the 1950s and to this date, most available drugs follow the monoamine theory. These drugs have a large loading dose lag time, numerous negative side effects, and still many patients do not experience relief from symptoms. In 2000, …

Under-Reporting Of Adverse Drug Reactions To The Food & Drug Administration, James Alexander Lamb

Walden Dissertations and Doctoral Studies

This study examined the potential significant differences in the distribution of adverse drug reactions (ADRs) by reporter (consumer versus physician) and patient outcome at case and event level. This study also contains exploratory questions to evaluate reporting of ADRs by consumers versus physician by system organ class (SOC) and reporter demographics within the United States Food & Drug Administration Adverse Event Reporting System (FAERS). The theoretical foundation applied in this quantitative study was the social amplification of risk framework. Data from the second quarter of 2016 were obtained from FAERS, and a total of 87,807 ADR reports corresponding to 143,399 …

Aerosolized Surfactants: Formulation Development And Evaluation Of Aerosol Drug Delivery To The Lungs Of Infants, Susan Boc

Theses and Dissertations

The overall aim of this research project was to develop surfactant dry powder formulations and devices for efficient delivery of aerosol formulations to infants using the excipient enhanced growth (EEG) approach. Use of novel formulations and inline delivery devices would allow for more efficient treatment of infants suffering from neonatal respiratory distress syndrome and bronchiolitis.

A dry powder aerosol formulation has been developed using the commercial product, Survanta ® (beractant) and EEG technology to produce micrometer-sized hygroscopic particles. Spray drying and formulation parameters were initially determined with dipalmitoylphosphatidylcholine (DPPC, the dominant phospholipid in pulmonary surfactant), which produced primary particles 1 …

Pharmacy Driven Best Possible Admission Medication History At A Pediatric Institution, Damon Pabst, Charity Thompson, Brandon French, Brian O'Neal, Garret Matthews, Zeb Benner, Joshua Meade

Posters

No abstract provided.

Development Of Small Molecule Neuroprotectants, Ashley Boice

Theses and Dissertations

Neurodegenerative diseases are a class of conditions that lead to progressive atrophy of different parts of the central nervous system (CNS). These diseases lead to devastating clinical outcomes to patients and give rise to an enormous socio-economical burden on society.¹ One commonality among some of the most well-known neurodegenerative disorders, e.g. Alzheimer’s disease (AD), Parkinson’s disease (PD), and multiple sclerosis (MS), is neuroinflammation.^2-4 Neuroinflammation stems from interactions of the innate immune system with toxins and insults to the central nervous system. In the case of irremovable or chronic insults and toxins, this leads to chronic damaging …

Evaluation Of A Drug Delivery System Based On Cyclodextrins For Cancer Therapy, Caroline Mendes

Doctoral

Due to the side-effects caused by regular chemotherapy, the development of drug delivery systems that can specifically target cancer cells and deliver the therapeutic dose is required. In this study, a folate-derivative of β-cyclodextrin has been studied as a vehicle for targeting folate receptors (FR) and delivering the chemotherapeutic drug methotrexate (MTX). FRs can be considered key cell membrane targets since they are commonly over-expressed in cancer cells and play an important role in cancer development and progression. Cyclodextrins (CDs) are cyclic oligosaccharides with a unique structure that allows them to form inclusion complexes with guest molecules, increasing their aqueous …

Anticancer Effects Of Mansonone G Derivative On Human Colorectal Cancer Cells, Savinee Chanvijit

Chulalongkorn University Theses and Dissertations (Chula ETD)

Mansonone G (MG), 1,2-naphthoquinone, isolated from the heartwood of Mansonia gagei Drumm (Chan-Cha-Mod), exhibited several pharmacological effects including anti-bacterial, anti-estrogenic and anti-adipogenic effects. However, anticancer activity of MG and its derivatives on colorectal cancer (CRC) has never been investigated. Therefore, the objective of this study was to investigate the cytotoxic effect of MG and its derivatives and to determine the mechanism(s) underlying cytotoxicity of the most potent MG derivative on two CRC cell lines, HCT-116 cells carrying p53 wild-type and HT-29 cells carrying p53 mutant. In the present study, MG and its derivatives could inhibit viability of HCT-116 and HT-29 …

Physicochemical, Biopharmaceutical And Anti-Hepatocellular Carcinoma Properties Of Curcumin Diethyl Disuccinate, Chawanphat Muangnoi

Chulalongkorn University Theses and Dissertations (Chula ETD)

Curcumin ( Cur) has been reported for an anticancer activity by inducing apoptosis. However, the poor oral bioavailability of Cur due to chemical instability limits itself for further development as a chemotherapeutic agent. Previously, a succinate ester prodrug of Cur named as curcumin diethyl disuccinate (CurDD) has been designed and synthesized to enhance chemical stability of Cur. In this study, physicochemical and biopharmaceutical properties as well as in vitro and in vivo anti-hepatocellular carcinoma activities of CurDD were investigated and compared with those of Cur. CurDD could improve the stability of Cur in buffer pH 7.4 and simulated gastrointestinal fluids. …

Development Of In Situ Gel Containing Asiaticoside-Cyclodextrin Complex For Periodontal Tissue Regeneration, Hay Man Saung Hnin Soe

Chulalongkorn University Theses and Dissertations (Chula ETD)

Asiaticoside (AS) is active herbal compound isolated from Centella asiatica. It has the potential benefit in promoting type I collagen (COL I) synthesis and osteogenic differentiation in human periodontal ligament cells. However, it has low aqueous solubility which may hamper the bioavailability. Thus, the main objective of this study was to develop the thermoresponsive in situ gels containing AS by using cyclodextrin (CD). To determine the solubility enhancement of AS, phase-solubility profiles were investigated and revealed that CDs enhanced the aqueous solubility of AS. Hydroxypropyl-beta-CD (HPβCD) and sulfobutyl-ether-beta-CD (SBEβCD) were selected due to highly solubilization enhancement of AS. The mucoadhesive …

Topoisomerase I Inhibitory Compounds From The Roots Of Paphiopedilum Callosum, San Yoon Nwe

Chulalongkorn University Theses and Dissertations (Chula ETD)

Paphiopedilum callosum (Rchb.f.) Stein belongs to the Orchidaceae family. The phytochemistry and bioactivity of this plant have not been previously reported. In this study, the chromatographic separation of methanolic extract of P. callosum roots was bioassay-guided by a yeast cell-based assay. One new compound, 3′-hydroxy-2,6,5′-trimethoxystilbene (PC1) and five known compounds including 3′-hydroxy-2,5′-dimethoxystilbene (PC2), 3-methylethergalangin (PC3), galangin (PC4), 2,3′-dihydroxy-5,5′-dimethoxystilbene (PC5) and 2,3′-dihydroxy-5′-methoxystilbene (PC6) were isolated. The chemical structures of these isolated compounds were elucidated and identified on the basis of analysis spectroscopic (ESI-MS, NMR and IR), as well as comparison with those reported in the literature. Their topoisomerase I poison activity …

Development Of Novel Phenanthroline And Thiazole Orange Derived G-Quadruplex Ligands And Telomerase Inhibitors, Siwen Wang

University of the Pacific Theses and Dissertations

The end of the human chromosome is protected by telomeres which contain a special tandem guanine-rich DNA sequence, 5’-TTAGGG. The length of telomeres is shortened during cell replications, and its length limits the replication capacity of cells. Telomerase is over-expressed in 85–90% of cancer cells, responsible for extending the telomere length in cancer cells. Guanine-rich DNA sequence can self-assemble into unique G-quadruplex structures that interfere with the extension of telomeres by telomerase. Therefore, DNA G-quadruplex has recently received much attention because of its important regulatory functions in telomerase-mediated cancerization. The formation of G-quadruplex requires monovalent cations (Na+ and K+) or …

Determining The Role Played By Aryl Hydrocarbon Receptor (Ahr) In The Colon Carcinoma Tumor Model, Poonam Yakkundi

University of the Pacific Theses and Dissertations

Aryl hydrocarbon receptor (AHR), commonly known as an environmental sensor involved in the metabolism and elimination of xenobiotic substances, is also an important modulator in the development and functioning of the immune system. AHR expression is varied in the T cell subsets with the highest expression in T-helper 17 and T regulatory cells. Work from many researchers has suggested that AHR can act as a tumor promoter or a tumor suppressor depending on the tumor type. Our goal is to understand the role played by AHR in MC38 syngeneic colon carcinoma tumor model. In the absence of AHR, MC38 tumor …