Drug Stereochemistry: A Prodigy For Pharmacology and Drug Development

2020 ◽  
Vol 17 (5) ◽  
pp. 565-573
Author(s):  
Karan Gandhi ◽  
Umang Shah ◽  
Sandip Patel

Stereochemistry has evinced the importance of many chiral drugs with respect to drug designing and development. A literature review was conducted for several chiral drugs involving pharmacokinetic and pharmacodynamic parameters of their enantiomers along with their uses in certain diseased conditions. This article mainly includes the pharmacological profile review of some chiral drugs and the aspects due to which the single enantiomer is of importance as compared to the racemic mixture of the drug. This was achieved by moderating the side effects or toxic effects; or by the potentiated activity of the single enantiomer. Resolution deals with the separation of racemic compounds which shows up the credibility to obtain the desired enantiomeric properties. As isomers vary in their pharmacokinetic and pharmacodynamic profiles, chiral drugs have showcased considerable importance in the drug development process. Both the enantiomers have a different pharmacological profile in the treatment of a disease, which differentiates them from drug racemates.

Pathogens ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 1608
Author(s):  
Anita Cohen ◽  
Nadine Azas

Leishmaniases are a group of vector-borne diseases caused by infection with the protozoan parasites Leishmania spp. Some of them, such as Mediterranean visceral leishmaniasis, are zoonotic diseases transmitted from vertebrate to vertebrate by a hematophagous insect, the sand fly. As there is an endemic in more than 90 countries worldwide, this complex and major health problem has different clinical forms depending on the parasite species involved, with the visceral form being the most worrying since it is fatal when left untreated. Nevertheless, currently available antileishmanial therapies are significantly limited (low efficacy, toxicity, adverse side effects, drug-resistance, length of treatment, and cost), so there is an urgent need to discover new compounds with antileishmanial activity, which are ideally inexpensive and orally administrable with few side effects and a novel mechanism of action. Therefore, various powerful approaches were recently applied in many interesting antileishmanial drug development programs. The objective of this review is to focus on the very first step in developing a potential drug and to identify the exploratory methods currently used to screen in vitro hit compounds and the challenges involved, particularly in terms of harmonizing the results of work carried out by different research teams. This review also aims to identify innovative screening tools and methods for more extensive use in the drug development process.


Author(s):  
Michael Tansey

Clinical research is heavily regulated and involves coordination of numerous pharmaceutical-related disciplines. Each individual trial involves contractual, regulatory, and ethics approval at each site and in each country. Clinical trials have become so complex and government requirements so stringent that researchers often approach trials too cautiously, convinced that the process is bound to be insurmountably complicated and riddled with roadblocks. A step back is needed, an objective examination of the drug development process as a whole, and recommendations made for streamlining the process at all stages. With Intelligent Drug Development, Michael Tansey systematically addresses the key elements that affect the quality, timeliness, and cost-effectiveness of the drug-development process, and identifies steps that can be adjusted and made more efficient. Tansey uses his own experiences conducting clinical trials to create a guide that provides flexible, adaptable ways of implementing the necessary processes of development. Moreover, the processes described in the book are not dependent either on a particular company structure or on any specific technology; thus, Tansey's approach can be implemented at any company, regardless of size. The book includes specific examples that illustrate some of the ways in which the principles can be applied, as well as suggestions for providing a better context in which the changes can be implemented. The protocols for drug development and clinical research have grown increasingly complex in recent years, making Intelligent Drug Development a needed examination of the pharmaceutical process.


2015 ◽  
Vol 35 (7) ◽  
pp. 1063-1089 ◽  
Author(s):  
Sylwia Bujkiewicz ◽  
John R. Thompson ◽  
Richard D. Riley ◽  
Keith R. Abrams

2017 ◽  
Vol 2 (Suppl. 1) ◽  
pp. 1-10 ◽  
Author(s):  
Denis Lacombe ◽  
Lifang Liu ◽  
Françoise Meunier ◽  
Vassilis Golfinopoulos

There is room for improvement for optimally bringing the latest science to the patient while taking into account patient priorities such as quality of life. Too often, regulatory agencies, governments, and funding agencies do not stimulate the integration of research into care and vice versa. Re-engineering the drug development process is a priority, and healthcare systems are long due for transformation. On one hand, patients need efficient access to treatments, but despite precision oncology approaches, efficiently shared screening platforms for sorting patients based on the biology of their tumour for trial access are lacking and, on the other hand, the true value of cancer care is poorly addressed as central questions such as dose, scheduling, duration, and combination are not or sub-optimally addressed by registration trials. Solid evidence on those parameters could potentially lead to a rational and wiser use of anti-cancer treatments. Together, optimally targeting patient population and robust comparative effectiveness data could lead to more affordable and economically sound approaches. The drug development process and healthcare models need to be interconnected through redesigned systems taking into account the full math from drug development into affordable care.


Author(s):  
Estella Achick Tembe Fokunang ◽  
Bruna Njeba ◽  
Marie Jose Essi ◽  
Rose Ngono Abondo ◽  
Banin Andrew Nyuki ◽  
...  

The drug discovery and development processes are designed to guarantee that drugs are efficacious, nontoxic and of high standards of quality for human consumption. However, patient’s population with access to drugs at approval is only a fraction of the final target population. Therefore, a thorough understanding of the safety of medicines is generally only achieved after the marketing authorization of the drug, followed by pharmacovigilance or post marketing surveillance. Pharmacovigilance (PHV) is defined by WHO as “the science and activities that deals with the detection, assessment, understanding and prevention of the adverse drug reactions or any other possible drug-related interactions”. Health professionals, patients, drug manufacturers and drug regulatory authorities are therefore highly involved in the practice of PHV. Cameroon imports 95 % of drugs and health care products. Therefore, an effective mastery of the knowledge, attitude and practice of PHV will help to elaborate the development of our pharmacovigilance systems. This paper gives an overview of pharmacovigilance in Cameroon for unlocking the drug development process focusing on the past, present and future.


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