Drug development
includes
drug formulation/drug delivery drug repurposing, ADME, biopharmaceutics/,
pharmacokinetics, pharmacology.
Biologics
is a subset of this glossary
Therapeutic
areas: covers cancer & oncology, cardiovascular, CNS & neurology,
Immunology, Infectious diseases, and Inflammation
Related glossaries include Clinical
trials Drug Safety,
Pharmacovigilance & Post Marketing Surveillance Drug
targets Pharmacogenomics Regulatory
Business Business of biopharmaceuticals
Clinical
trials, drug, device & diagnostics approvals Finance
& Pharmacoeconomics Pharmaceutical Intellectual property
Chemistry Assays & screening Chemistry
Medicinal & Pharmaceutical Combinatorial
libraries
& synthesis
Informatics Bioinformatics
Chemoinformatics Clinical
informatics
Drug
discovery informatics Technologies Microarrays Sequencing
Biology Pharmaceutical
biology
Genomics and
proteomics can be used in compound evaluation, by providing molecular details
about the effect of a compound on the body. This approach may highlight
mechanisms of action or toxicity, both of which can be critical for further
compound optimization.
Accelerating
Medicines Partnership:
Accelerating Medicines Partnership (AMP) is a public-private partnership
between the National Institutes of Health (NIH), the U.S. Food and Drug
Administration (FDA), 12 biopharmaceutical and life science companies and
13 non-profit organizations to transform the current model for developing
new diagnostics and treatments by jointly identifying and validating
promising biological targets for therapeutics. The ultimate goal is to
increase the number of new diagnostics and therapies for patients and
reduce the time and cost of developing them.
http://www.nih.gov/science/amp/index.htm
analogue
based drug discovery:
The book Analogue-based
Drug Discovery,
published by Wiley-VCH in 2006, provided the first authoritative overview of
past and current strategies for successful drug development by molecular
modification of known leads was. This unique resource spanned the important drug
classes in most major therapeutic fields. A second edition* was released this
month [2010] that has a broader scope than the first and which not only contains
descriptions of full analogues, but also includes several pharmacological
analogues. IUPAC Chemistry
International 2010 July-August https://www.iupac.org/publications/ci/2010/3204/3_fischer.html Related
terms:
prototypes, Regulatory: follow ons, me too drugs
animal disease
models:
Naturally occurring or experimentally induced animal diseases with
pathological processes sufficiently similar to those of human diseases. They are
used as study models for human diseases. MeSH 1970
attrition:
High attrition or failure rates in pharmaceutical R&D
continue to be a challenge and ways to reduce these are increasingly required.
Narrower term: early attrition
blockbuster drugs: Business of
biopharmaceuticals
breakthrough therapies:
Breakthrough Therapy designation is a process designed to expedite the
development and review of drugs that are intended to treat a serious condition
and preliminary clinical evidence indicates that the drug may demonstrate
substantial improvement over available therapy on a clinically significant
endpoint(s).
US FDA, Therapies
https://www.fda.gov/forpatients/approvals/fast/ucm405397.htm
combination
products: Regulatory
combination
therapies: As ever more
combination therapies are applied in various areas of medicine, there is a
growing need for quantitative descriptions of combination effects. While most of
the scientific community has agreed on a basic standard for synergy, there is no
consensus on quantifying the degree to which a combination may deviate from
synergy, and no predictive models are accepted to serve as benchmarks. This project will
convene a working group, involving leading experts on combination effects, to
(1) endorse the synergy criterion recommended at a recent meeting in Finland,
(2) adopt standard measures of combination effect to quantify deviations from
synergy, and (3) explore predictive combination-effect models for
multiply-inhibited biological interaction networks. Quantifying the Effects of
Compound Combinations Chemistry International 25 (4) July-Aug. 2004, http://www.iupac.org/publications/ci/2004/2604/pp5_2003-059-1-700.html
Critical path:
On March 16 [2004], FDA
released a report addressing the recent slowdown in innovative medical therapies
submitted to the FDA for approval, "Innovation/ Stagnation: Challenge and
Opportunity on the Critical Path to New Medical Products." That report
describes the urgent need to modernize the medical product development process
-- the Critical Path -- to make product development more predictable and less
costly. FDA, The critical path to new medical products,
http://www.fda.gov/oc/initiatives/criticalpath/
developability:
This
article describes the role and responsibilities of the Developability Assessment
Group (DAG), a pharmaceutical Research and Development (R&D) subgroup, which
supports drug discovery and development scientists with screening,
developability assessment, and selection of new molecular entities (NMEs) for
clinical studies. A strong collaboration between discovery group and DAG is
essential for selecting the right NMEs for late-stage development, and
consequently decreasing the NME attrition rate in late-stage development as well
as in bringing down the associated cost and timelines. The investigations
performed by DAG for evaluating research leads as well as the significance of
these investigations in the developability assessment, the value of cutting edge
tools and technologies, and the usefulness of the data in the decision making
process are discussed in this review. Developability assessment of NMEs often
includes physicochemical and biopharmaceutical characterization, development of
suitable formulations for pharmacokinetic (PK), efficacy, and toxicity studies,
selection of suitable physical form (salt, polymorph, etc.), and formulation
development for phase I clinical studies. Overall DAG activities not only
contribute to streamlining efficacy-toxicology evaluation, but also in building
developability screens, which allow pharmacologically effective, minimally
toxic, and developable candidates to reach the clinic and eventually to the
market.
J
Pharm Sci. 2009
Jun;98(6):1962-79. doi: 10.1002/jps.21592. Developability
assessment in pharmaceutical industry: An integrated group approach for
selecting developable candidates.
Saxena
V, Panicucci
R, Joshi
Y, Garad
S.
http://www.ncbi.nlm.nih.gov/pubmed/18855914
developability small molecule:
Using compounds
occupying four distinct clog P/molecular
weight regions that define optimal and sub-optimal chemical space, and a
developability score derived from solubility, permeability, protein binding
and 3A4 inhibition screening data, OPLS regression models were constructed
to determine which physico-chemical properties were most correlated with
developability. The results suggested that whilst certain molecule
properties were important for developability across all chemical space,
such as [clog D +
aromatic ring count], [clog D +
(aromatic atom count – sp3 carbon count)] and [sp3 carbon
count/total carbon count], others such as heteroaliphatic ring count,
positive ionisable group count and H-bond donor character exhibited
varying degrees of importance depending on the clog P/Mw region.
Increasing small
molecule drug developability in sub-optimal chemical space
Timothy J. Ritchie,*a Simon
J. F. Macdonald,*b Simon
Peace,b Stephen
D. Pickett
c
and Luscombe
DOI:10.1039/C3MD00003F
Med. Chem. Commun.,
2013,4,
673-680
https://pubs.rsc.org/en/content/articlelanding/2013/md/c3md00003f#!divAbstract
See also developability biologics
drug development:
The entire process of bringing a new drug to the
market. It includes both preclinical and clinical testing, and regulatory
approval. AN: do not confuse with DRUG DISCOVERY which is the process of
finding chemicals for potential therapeutic use MeSH 2019
the process of
bringing a new pharmaceutical
drug to the market once a lead
compound has been identified through
the process of drug
discovery. It includes pre-clinical
research on microorganisms and
animals, filing for regulatory status, such as via the United States Food
and Drug Administration for an investigational
new drug to initiate clinical
trials on humans, and may include the
step of obtaining regulatory
approval with a new
drug application to market the drug.[1][2]
Wikipedia accessed 2018 Nov 10 https://en.wikipedia.org/wiki/Drug_development
Related terms: attrition,
hit to lead, lead optimization,
lead validation
drug discovery:
the process by which new candidate medications are
discovered. Historically, drugs were discovered through identifying the
active ingredient from traditional remedies or by serendipitous discovery.
Later chemical
libraries of synthetic small
molecules, natural
products or extracts were
screened in intact cells or whole organisms to identify substances that
have a desirable therapeutic effect
in a process known as classical
pharmacology. Since sequencing of
the human genome which
allowed rapid cloning and synthesis of large quantities of purified
proteins, it has become common practice to use high
throughput screening of large compounds libraries against isolated biological
targets which are hypothesized to be disease modifying in a process
known as reverse
pharmacology. Hits from these screens are then tested in cells and
then in animals for efficacy.
Modern drug discovery involves the identification of screening hits, medicinal
chemistry and optimization of those hits to increase the affinity, selectivity (to
reduce the potential of side effects), efficacy/potency, metabolic stability
(to increase the half-life),
and oral bioavailability.
Once a compound that fulfills all of these requirements has been
identified, it will begin the process of drug
development prior to clinical
trials. Wikipedia accessed 2018 Nov 10
https://en.wikipedia.org/wiki/Drug_discovery
Related terms: drug
development, drug
discovery chemistry target validation
Discovery on Target Sept
16-19, 2019 • Boston, MA
Program | novel
drug targets and technologies for small molecules and biologics
drug discovery pipeline:
The process of drug development has evolved into an extremely complex procedure. The average drug takes 12 years and $270
million from initial discovery to public usage.(1) For every drug that is deemed marketable by the FDA, thousands of others are
considered either unsafe or ineffective clinically. Beginning with preclinical research, new chemical entities (NCEs) are discovered in laboratories and tested in animals for safety and biological activity. If a compound is thought to be safe and effective as a
chemical agent, a pharmaceutical company then submits an investigational new drug application (NDA) to the FDA. Once
approved for clinical studies, a three-phase process begins where safety and efficacy are continually assessed with increased
scrutiny and an increasing patient population. Approximately 70% of drugs entering clinical trials complete Phase I, 33% complete
Phase II, and 27% complete Phase III. After Phase III is completed a company then submits a NDA to the FDA. Those drugs that
are approved for marketing comprise an extremely small percentage of new chemical entities (NCEs) that are tested. In fact, from
thousands only a handful of drugs undergo clinical studies, and even fewer receive market approval.
C. Daniel Mullins et. al. " Projections of drug approvals, patent
expirations and generic entry from 2000 to 2004" report prepared for the
Dept. of Health and Human Services' Conference on Pharmaceutical Pricing Practices, Utilization and Costs
August 8- 9, 2000, Washington DC, US
http://aspe.hhs.gov/health/reports/Drug-papers/Mullins-Palumbo%20paper-final.htm
A pipeline is best defined as what the company potentially has to offer for a
product. Key word: potentially. It is not a guarantee that whatever it is will
actually succeed, something many investors forget when they run screaming
towards the latest trends with arms extended, green bills in hand. The pipeline
is the umbrella term for anything under construction, or as some people like to
say -- the maybes.
These maybes are not necessarily drugs or genetic derivatives. Anything a
company potentially has to offer is in the pipeline. Immunoassay tests, a new
drug delivery system, even the next Pentium computer chip is in the pipeline if
it is not yet being sold in stores. An artist working on their latest music
album has a project in the pipeline. Hey, even this article was in the pipeline
until being scanned by you, the reader. Tara Breton, Health Advances LLC, Working the Pipeline Databases, Searcher 11(8) Sept. 2003.
Narrower Terms: hollow pipeline, robust pipelines;
Related terms: Regulatory Affairs NCE,
NDA, Phase I, Phase II, Phase III, Phase IV
Medicines in the pipeline, PhRMA http://phrma.org/pipeline
drug
repositioning:
Drug repositioning has become a matter of intense interest
during the past few years. It is an approach to drug development that calls for
reinvestigation of candidates that did not succeed in advanced clinical trials
(for reasons other than safety) for potential use in other therapeutic
indications. Insight Pharma Reports
Drug
Repositioning: Extracting Added Value from Prior R&D Investments 2010
Also known as
drug
repurposing
drug selection:
Traditionally the movement of compounds along the pipeline has been a fairly linear process. Because ways
of speeding up the process can be enormously economically rewarding, greater
attention is being paid to moving compounds along faster, trying to insure
that compounds which will eventually fail, fail earlier, and looking at
ways of revising the process to perform some evaluations in parallel rather
than sequentially.
druggable genome:
Out of the nearly 20,000-25,000 protein-coding genes in the human genome,
approximately 3,000 are estimated to be part of the druggable genome, the
subset of genes expressing proteins with the ability to bind drug-like
molecules. Yet, less than ten percent of the druggable proteins are
currently targeted by FDA-approved drugs. A significant number of those
remaining are understudied and will be the focus of the implementation
phase of the IDG. Illuminating the druggable genome
https://commonfund.nih.gov/idg/overview
druggability:
the
likelihood of being able to modulate a target with a small-molecule drug — is
crucial in determining whether a drug discovery project progresses from 'hit' to
'lead'. With only 10% of the human genome representing druggable targets, and
only half of those being relevant to disease, it is important to be able to
predict how druggable a novel target is in early drug discovery.
Nature
Reviews Drug Discovery 6, 187 (March
2007) | doi:10.1038/nrd2275
Determining
druggability Joanna Owens
http://www.nature.com/nrd/journal/v6/n3/full/nrd2275.html
a term used in drug
discovery to
describe a biological
target (such
as a protein)
that is known to or is predicted to bind with high affinity to a drug.
Furthermore, by definition, the binding of the drug to a druggable target must
alter the function of the target with a therapeutic benefit to the patient. The
concept of druggability is most often restricted to small
molecules (low
molecular weight organic substances)[1] but
also has been extended to include biologic
medical products such
as therapeutic monoclonal
antibodies.
Wikipedia accessed 2019 June 24
http://en.wikipedia.org/wiki/Druggability
druggable:
the
likelihood of being able to modulate a target with a small-molecule drug — is
crucial in determining whether a drug discovery project progresses from 'hit' to
'lead'. With only 10% of the human genome representing druggable targets, and
only half of those being relevant to disease, it is important to be able to
predict how druggable a novel target is in early drug discovery.
Nature
Reviews Drug Discovery 6, 187 (March
2007) | doi:10.1038/nrd2275
Determining
druggability Joanna Owens
http://www.nature.com/nrd/journal/v6/n3/full/nrd2275.html
Able to be modulated
by a small molecule to produce a desired phenotypic change in cell targets.
Variant spelling is
drugable,
however on Feb 22 2011 Google has about
67,900 hits for
druggable Feb 22 2011 and about 20,500 for drugable
Related terms: low hanging fruit,
pharmaceutically tractable, small
molecules, tractable targets privileged structure; Pharmaceutical biology
G proteins, ion channels
drug-like,
drug-likeness:
There are currently about 10000 drug-like compounds. These are sparsely,
rather than uniformly, distributed through chemistry space. True diversity does
not exist in experimental combinatorial chemistry screening libraries.
Absorption, distribution, metabolism, and excretion (ADME) and chemical
reactivity-related toxicity is low, while biological receptor activity is higher
dimensional in chemistry space, and this is partly explainable by evolutionary
pressures on ADME to deal with endobiotics and exobiotics. ADME is hard to
predict for large data sets because current ADME experimental screens are
multi-mechanisms, and predictions get worse as more data accumulates.
Drug-like
properties and the causes of poor solubility and poor
permeability. Lipinski CA.
J
Pharmacol Toxicol Methods. 2000 Jul-Aug;44(1):235-49
Wikipedia http://en.wikipedia.org/wiki/Druglikeness
ethical drugs:
The old term ethical
drugs signified drugs advertised only to doctors. The expression refers to
the original 1847 code of ethics of the AMA, which deemed advertising directly
to the public to be unethical. Over time, the term came to mean legal drugs.
FDAReview.org, Independent Institute, 2003
http://www.fdareview.org/glossary.shtml#ethical
Related
term: prescription drugs
fail fast:
Several high-quality
analyses comparing the track record of smaller biotechnology companies with
established pharmaceutical companies have concluded that company size is not an
indicator of success in terms of R&D productivity … the strongest single
correlator with success (odds ratio 3.9) was having a high termination rate in
preclinical/Phase I stages. This indicates that companies have an early idea of
which assets are likely to succeed, and that the companies most willing to face
the hard decisions about which assets to terminate do better than companies that
let assets linger. Does size matter in R&D productivity? If not, what does?
Michael Ringel, Peter Tollman, Greg Hersch and Ulrik Schulze Nature Reviews Drug
Discovery 12:901-902, Dec 2013 http://www.nature.com/nrd/journal/v12/n12/pdf/nrd4164.pdf
Designed to eliminate high risk compounds at an
early stage to free up existing capacity for more successful compounds. The
industry is faced with an increasing number of unvalidated or poorly validated candidates and targets.
Companies risk decreasing
their productivity rate if they end up chasing more low quality drug candidates. There
isn't enough matter in the universe to make all possible compounds.
follow–on
drug: The development of 'follow on' or 'me
too' drugs — generally defined as a drug with a similar chemical structure or
the same mechanism of action as a drug that is already marketed — has attracted
contrasting views. Some have argued that follow-on drugs often provide useful
alternative or enhanced therapeutic options for patients or patient
subpopulations, as well as introducing price competition. Others, however,
consider that the development of such drugs is duplicative and that the
resources needed would be better directed elsewhere. Implicit in some of this
criticism is the notion that the development of me-too drugs is undertaken after
a first-in-class drug has made it to market and proved commercially successful.
In this Perspective, using analysis of development and patent filing histories
of entrants to new drug classes in the past five decades, we provide new
evidence that the development of multiple new drugs in a given class is better
characterized as a race, rather than the imitation of successful products.
Joseph A. DiMasi
& Laura B. Faden
Competitiveness in follow-on drug R&D: a race or imitation? Nature Reviews Drug
Discovery volume10, pages23–27 (2011)
https://www.nature.com/articles/nrd3296
generic drug:
a pharmaceutical
drug that has the same chemical
substance as the drug that was originally developed, patented and
innovated. Generic drugs are allowed for sale after the expiry of the patent of
the original drugs. Because the active chemical substance is the same, the
medical profile of generics is believed to be equivalent in performance.[1][2] The
generic drug has the same Active
Pharmaceutical Ingredient (API) as
the original, but it may differ in characteristics such as manufacturing
process, formulation, excipients,
color, taste, and packaging.[2][3]
… "Branded generics" on the other hand are defined by the FDA and NHS as
"products that are (a) either novel dosage forms of off-patent products
produced by a manufacturer that is not the originator of the molecule, or
(b) a molecule copy of an off-patent product with a trade name."[10]
Wikipedia accessed 2018 Nov 10
https://en.wikipedia.org/wiki/Generic_drug
Related term:
Biologics biosimilar
genomic drugs:
More
than 100,000 people die each year from adverse responses to medications that are
beneficial to others. Another 2.2 million experience serious reactions, while
others fail to respond at all. ... Genomic data and technologies also are
expected to make drug development faster, cheaper, and more effective. Most
drugs today are based on about 500 molecular targets; genomic knowledge of the
genes involved in diseases, disease pathways, and drug- response sites will lead
to the discovery of thousands of new targets. New drugs, aimed at specific sites
in the body and at particular biochemical events leading to disease, probably
will cause fewer side effects than many current medicines. Ideally, the new
genomic drugs could be given earlier in the disease process. As knowledge
becomes available to select patients most likely to benefit from a potential
drug, pharmacogenomics will speed the design of clinical trials to bring the
drugs to market sooner. Medicine and the New Genetics: Genomic and its
impact on Medicine and Society, A 2001 primer, Oak Ridge National Lab, US Narrower terms: Gleevec,
Herceptin
GLP Good Laboratory
Practice: Regulatory
HealthCommons:
a coalition of parties
interested in changing the way basic science is translated into the
understanding and improvement of human health. Coalition members agree to
share data, knowledge, and services under standardized terms and
conditions by committing to a set of common technologies, digital
information, principals, research materials, contracts, workflows, and
software. These commitments ensure that knowledge, data, materials, and
tools can move seamlessly from partner to partner across the entire drug
discovery chain. This, in turn, enables participants to offer standardized
services (ranging from simple molecular assays to complex drug synthesis)
in directories that others can discover and integrate into their own
processes to expedite development—or assemble like LEGO blocks to create
new services.
https://commerce.net/project/health-commons/
high throughput:
Although the adjective "high throughput"
was originally coined in a drug screening context, high throughput
strategies to accelerate and automate earlier steps in the drug discovery
pipeline have already been introduced. With the introduction of genomics-
based drug discovery strategies, the concept of high throughput has
extended to areas like gene expression analysis,
where microarrays allow the simultaneous expression profiling of
thousands of genes in diseased versus normal samples. In the early stages of disease- gene research, when one wishes to
identify alterations in gene expression that are associated with a disease state
with significant societal impact and potential market value, a microarray- based
approach provides significant acceleration over traditional methods to evaluate candidate
genes one at a time.
in silico, in silico chemical genomics:
Drug discovery informatics
Innovative Medicines Initiative IMI:
a European initiative to improve the competitive situation of the European
Union in the field of pharmaceutical
research. The IMI is a joint
initiative (public-private
partnership) of the DG
Research of the European
Commission, representing the European
Communities, and the European
Federation of Pharmaceutical Industries and Associations (EFPIA).
IMI is laid out as a Joint
Technology Initiative within the
Seventh Framework Programme.[1][2][3][4][5][6][7][8]
Wikipedia accessed 2018 Nov 10
https://en.wikipedia.org/wiki/Innovative_Medicines_Initiative
lead, lead generation, lead identification,
lead like, lead optimization: Assays & screening
lifestyle drugs:
Drugs treating non-life
threatening conditions such as erectile dysfunction, baldness, and some
aging therapies..
low hanging fruit:
The easiest drugs to identify and gain approval
for. The big question these days is how much (if any) "low hanging fruit"
is left. Related terms:
developability, druggable, drug-likeness, pharmaceutically tractable, tractable
targets
me too drugs: See
follow-on drug mechanism of
action: Pharmacogenomics
microdosing:
a technique for studying the behaviour of drugs in
humans through the administration of doses so low ("sub-therapeutic") they are
unlikely to produce whole-body effects, but high enough to allow the cellular
response to be studied. This is called a "Phase
0study" and is usually conducted before clinical Phase I to predict whether
a drug is viable for the next phase of testing. Human microdosing aims to reduce
the resources spent on non-viable drugs and the amount of testing done on
animals. Less commonly, the term "microdosing" is also sometimes used to refer
to precise dispensing of small amounts of a drug substance (e.g., a powder API)
for a drug product (e.g., a capsule),[1] and
when the drug substance also happens to be liquid this can potentially overlap
what is termed microdispensing.
For example, psychedelic
microdosing.[2]
Wikipedia accessed 2018 Nov 10
https://en.wikipedia.org/wiki/Microdosing
Almost half of new drugs fail at the transition from animal to human trials.
Human microdosing points the way to smarter drug development and may be the
answer to what has been perceived as a productivity crisis in the industry. By
testing only 1% of a pharmacological dose in humans, failures can be identified
much earlier in the development process – at Phase 0. This approach has proven
to be successful in ADME prediction, helping scientists identify which
candidates merit further development. Microdosing technology can also be used
to determine absolute bioavailability, thus aiding drug developers to assess
pharmacodynamics and physiological activity. Gathering scientists together to
discuss this new and important tool certainly seems needed in order to promote
faster, more efficacious drug development. Using microdosing shows promise of
reducing time spent on drugs destined to fail, and also cutting down on the
costs associated with testing. In addition, human microdosing at Phase 0 will
mitigate the need for
testing in animals, and can also help to determine the best animal models to
use. Microdosing studies have become possible due in large part to the technical
advances of detection instruments. Related term: phase zero, phase 0
molecular
therapeutics: Biologics
NCE New Chemical Entity:
Regulatory
Oligonucleotide &
Precision Therapeutics
March
26-28, 2019 Cambridge, MA
Program advances
in next-generation oligonucleotide therapies throughout the drug
development process.
Oligonucleotide
Discovery & Delivery
March 26-27, 2019 Cambridge, MA
Program |
detailed case studies on antisense, RNA, aptamer and oligonucleotide
conjugates
.
orphan drugs: The Orphan
Drug Designation program provides
orphan status to drugs and biologics which are defined as those intended
for the safe and effective treatment, diagnosis or prevention of rare
diseases/disorders that affect fewer than 200,000 people in the U.S., or
that affect more than 200,000 persons but are not expected to recover the
costs of developing and marketing a treatment drug. FDA
https://www.fda.gov/forindustry/developingproductsforrarediseasesconditions/default.htm
May be defined as :Drugs
that are not developed by the pharmaceutical industry for economic reasons
but which respond to public health need.
Actually, the indications of a drug may also be considered as '
orphan ' since a substance may be used in the treatment of a frequent
disease but may not have been developed for another, more rare indication.
In fact, three cases may arise :
Products intended to treat rare diseases : These products are developed to
treat patients suffering from very serious diseases for which no
treatment, or at least a satisfactory one, has so far been available.
These diseases affect only a small proportion of the population (less than
one person per 2,000 in Europe), most often at birth or in infancy. The
number of rare diseases for which no treatment is currently available is
estimated to be between 4,000 and 5,000 world-wide. Twenty-five to 30
million people are reported to be affected by these diseases in Europe.
Products withdrawn from the market for economic or therapeutic reasons :
For example, thalidomide widely much used as a hypnotic drug some years
ago and was then withdrawn from the market when its high teratogenic
(triggering fetal malformations) risk was discovered. However this drug
showed very interesting analgesic proprieties in diseases such as leprosy
or lupus erythematosus. They are diseases for which no satisfactory
treatment has been available. Products that have not been developed
:either because they are derived from a research process that cannot be
patented ; or because they concern important markets which are, however,
not creditworthy (see the text Orphan
drugs for Third-World countries). Orphanet About orphan drugs
https://www.orpha.net/consor/cgi-bin/Education_AboutOrphanDrugs.php?lng=EN
Related term: rare diseases
orphan products: Regulatory
outsourcing: Business
of biotechnology & pharmaceuticals
Over-the-counter (OTC) drugs:
medicines sold
directly to a consumer without a prescription from
a healthcare professional,[1] as
opposed to prescription
drugs, which may be sold only to
consumers possessing a valid prescription. … OTC drugs are usually
regulated by active
pharmaceutical ingredients (APIs),
not final products. By regulating APIs instead of specific drug
formulations, governments allow manufacturers freedom to formulate
ingredients, or combinations of ingredients, into proprietary mixtures.[2]
Wikipedia accessed 2018 Nov 10
https://en.wikipedia.org/wiki/Over-the-counter_drug
Over-the-counter
medicine is also known as OTC or nonprescription medicine. All these terms
refer to medicine that you can buy without a prescription. FDA
https://www.fda.gov/drugs/resourcesforyou/consumers/buyingusingmedicinesafely/understandingover-the-countermedicines/default.htm
pharmaceutical industry: Business of
biopharmaceuticals
pharmaceutical profiling:
The pharmaceutical properties of drug candidates determine how much of the drug safely reaches the therapeutic target. Drug candidates often fail in discovery and development due to inadequate properties, resulting in lost opportunities and resources for developing new drugs. Pharmaceutical profiling assays have been developed and implemented to measure the properties of large numbers of drug candidates starting at the earliest stages of discovery. This information is used for informed decisions in drug candidate selection and synthetic optimization. A holistic process of parallel activity and property optimization has emerged in drug discovery.
EH Kerns, L. Di, Multivariate pharmaceutical profiling for drug discovery, Current Topics
in Medicinal Chemistry 2 (1): 87-98, Jan. 2002
pharmaceutically tractable:
Related
terms:
developability, druggable, low hanging
fruit, tractable targets
Phase zero, Phase O:
a recent designation for optional exploratory trials
conducted in accordance with the United States Food
and Drug Administration's (FDA) 2006 Guidance on Exploratory Investigational
New Drug (IND) Studies.[3] Phase
0 trials are also known as human microdosing studies
and are designed to speed up the development of promising drugs or imaging
agents by establishing very early on whether the drug or agent behaves in
human subjects as was expected from preclinical studies. Distinctive features of
Phase 0 trials include the administration of single subtherapeutic doses of the
study drug to a small number of subjects (10 to 15) to gather preliminary data
on the agent's pharmacokinetics (what
the body does to the drugs).[4]
A Phase 0 study gives no data on safety or efficacy, being by definition a dose
too low to cause any therapeutic effect. Drug development companies carry out
Phase 0 studies to rank drug candidates in order to decide which has the best pharmacokinetic parameters
in humans to take forward into further development. They enable go/no-go
decisions to be based on relevant human models instead of relying on sometimes
inconsistent animal data. Wikipedia accessed 2018 Nov 10
https://en.wikipedia.org/wiki/Phases_of_clinical_research#Phase_0
Related terms: microdosing
Biomarkers type 0 biomarker
preclinical development:
The area of preclinical development is critical to ensuring the safety of all
drugs entering clinical trials and ultimately the marketplace. Molecular
approaches to assess drug candidate toxicity and human metabolism will help to
better predict safety and efficacy early in the development process. Developing
more specific assays for genetic toxicology will be a key contribution to this
effort. The use of modeling could shed light on the relationship between PK/PD
and toxicity, and help to translate results to human in vivo response.
Improvements and innovations in preclinical in vitro assays and animal models
will lead to greater compound yield and lower costs.
Related terms: Drug
safety & pharmacovigilance
Wikipedia http://en.wikipedia.org/wiki/Pre-clinical_development
preclinical
drug evaluations:
Preclinical testing of drugs in
experimental animals or in vitro for their biological and toxic effects and
potential clinical applications. MeSH, 1974
preclinical investigations:
Laboratory and animal
studies designed to test the mechanisms, safety, and efficacy of an intervention
prior to its applications to humans IRB
preclinical
research:
During preclinical drug development, a
sponsor evaluates the drug's toxic and pharmacologic effects through in
vitro and in vivo laboratory animal testing. Genotoxicity
screening is performed, as well as investigations on drug absorption and
metabolism, the toxicity of the drug's metabolites, and the speed with which the
drug and its metabolites are excreted from the body. At the preclinical stage,
the FDA will generally ask, at a minimum, that sponsors: (1) develop a
pharmacological profile of the drug; (2) determine the acute toxicity of the
drug in at least two species of animals, and (3) conduct short-term toxicity
studies ranging from 2 weeks to 3 months, depending on the proposed duration of
use of the substance in the proposed clinical studies. FDA, CDER, Drug
Development and Review Definitions, 2010 http://www.fda.gov/Drugs/DevelopmentApprovalProcess/HowDrugsareDevelopedandApproved/ApprovalApplications/InvestigationalNewDrugINDApplication/ucm176522.htm
preclinical
studies:
Studies that test a drug on animals and other nonhuman test
systems. They must comply with FDA's good laboratory practices. Data about a
drug's activities and effects in animals help establish boundaries for safe use
of the drug in subsequent human testing (clinical studies). Also, because
animals have a much shorter lifespan than humans, valuable information can be
gained about a drug's possible toxic effects over an animal's life cycle and on
offspring. Drug Review Glossary, FDA Consumer Magazine, 25 definitions http://www.fda.gov/fdac/special/newdrug/bengloss.html
preclinical testing:
Compounds are tested on cell lines
(human and animal) for effectiveness. Also, the compounds are tested in live
animals for toxicity and to ensure that they maintain their pharmacological
properties.
proof
of concept drug development: Drug
discovery informatics
prototypes:
First in class compounds usually directed at a
specific molecular target. (Note that we have adapted the term for use in
a broader sense to replace the term lead compound, which arguably loses
some of its meaning after the lead optimization process.)
Insight Pharma Reports, Backup Compound
Strategies: Best Practices for Reducing Phase II Risk, 2007
prototypes drug:
Considered to be the first pure compound to have been discovered in any
series of chemically or developmentally related therapeutic agents. A few
prototypes have not been developed further because this has been
unnecessary, commercially unacceptable or else unsuccessful. Some
prototypes continue to serve as medicinal compounds in their own right,
while others have been rendered obsolete by the analogues derived from
them. Dr. Walter Sneader, Drug Prototypes and their Exploitation. John
Wiley, 1996, Related term:
analogue based drug discovery
research tools:
We
use the term "research tool" in its broadest sense to embrace the full
range of resources that scientists use in the laboratory, while recognizing that
from other perspectives the same resources may be viewed as "end
products." For our purposes, the term may thus include cell
lines,
monoclonal antibodies, reagents,
animal models, growth
factors, combinatorial
chemistry libraries, drugs
and drug targets, clones and cloning tools (such as
PCR), methods, laboratory equipment and machines,
databases and computer
software. .. NIH Working Group on Research Tools, June 4, 1998
https://www.mmrrc.org/about/NIH_research_tools_policy/
reverse
pharmacology: In the field of drug
discovery, reverse pharmacology [1][2][3] also
known as target-based drug discovery (TDD),[4] a
hypothesis is first made that modulation of the activity of a specific protein
target will have beneficial
therapeutic effects. Screening of chemical
libraries of small
molecules is then used to identify
compounds that bind with high affinity to the target. The hits from these
screens are then used as starting points for drug discovery. This method
became popular after the sequencing of
the human
genome which allowed rapid cloning
and synthesis of large quantities of purified proteins. This method is the
most widely used in drug discovery today.[5] Differently
than the classical (forward)
pharmacology, with the reverse pharmacology approach in vivo efficacy of
identified active (lead)
compounds is usually performed in the final drug
discovery stages. Wikipedia accessed
2018 Nov 19
https://en.wikipedia.org/wiki/Reverse_pharmacology
RNAi therapeutics:
Following an overview of the discovery and evolution
of the RNAi and miRNA field, RNAi Therapeutics: Second-Generation Candidates
Build Momentum turns to the science behind therapeutic RNAi and miRNA,
technologies for design of therapeutic oligonucleotides that work via an RNAi or
miRNA-modulating mechanism, technologies for design of delivery vehicles, and
leading companies in the therapeutic RNAi/miRNA industry sector as well as the
role of large pharmaceutical companies in the sector. Insight Pharma Reports
RNAi therapeutics
2010
http://www.insightpharmareports.com/reports_report.aspx?r=7773&id=102426 scalable:
Capable of being expanded
for high- throughput. Analogous to recipes optimized for large groups, rather
than standard recipes being quadrupled or more, with less than ideal results.
Also spelled scaleable.
small
molecules:
Small molecules,
often with molecular weights of 500 or below, are extremely important for
researchers to explore function at the molecular, cellular, and in vivo level.
Such molecules have also proven valuable for treating diseases, and most
medicines marketed today are from this class. A key challenge is to identify
small molecules effective at modulating a given biological process or disease
state. NIH Common Fund, Molecular
Libraries
https://commonfund.nih.gov/Molecularlibraries/overview.aspx
Size of small molecules is generally under
1000 Daltons, but many estimates seem to range between 300
to 700 Daltons.
small molecule
therapeutics, :
Low
molecular-weight drugs. Compared to larger molecular weight pharmaceuticals such
as proteins, peptides, and carbohydrates, small molecules can more easily
penetrate cell membranes and the blood brain barrier. Can be delivered orally or
intravenously. These molecules tend to incur lower process development and
manufacturing costs. Preferred for drugs
as they are orally available (unlike proteins which must be administered
by injection or topically). .
Related terms: druggable, low
hanging fruit, pharmaceutically tractable; small
molecule libraries
ultra-orphan drugs:
In the U.S., the number of
patients used for the designation of orphan drugs is <200,000; that is, 1
in 1500 people [12].
In the EU, the number of patients used for the designation of orphan drugs
is ≤5 per 10,000 people, i.e., 1 in 2000 people; [13]
in actual terms for some orphan drugs the number is often less than 1 per
100,000 people [14].
In Japan, the designation for orphan drugs targets diseases with <50,000
patients [15],
which corresponds to 1 in 2600 people. Health Science Council of MHLW
defines ultra-orphan drugs as pharmaceuticals for diseases that affect
<1000 people [16]
Points to consider: efficacy and safety evaluations in the clinical
development of ultra-orphan drugs
Kojiro Maeda, Masayuki Kaneko,
Mamoru Narukawa, Teruyo Arato,
Orphanet Journal of Rare Diseases201712:143
https://doi.org/10.1186/s13023-017-0690-5
Published: 23 August 2017
https://ojrd.biomedcentral.com/articles/10.1186/s13023-017-0690-5
Broader term:
orphan drugs
World Preclinical Congress
now World Pharma Week June
17-21, 2019 • Boston, MA
Drug discovery & development resources
IUPAC International Union of Pure and Applied Chemistry, Glossary of terms in
Biomolecular Screening 2011
http://iupac.org/publications/pac/83/5/1129/
IUPAC International
Union of Pure and Applied Chemistry, Nomenclature in laboratory robotics and
automation, 1994 http://www.iupac.org/publications/pac/1994/pdf/6603x0609.pdf
MeSH Medical Subject Headings, PubMed http://www.ncbi.nlm.nih.gov/mesh
Nature Drug Discovery gateway, Nature Publishing Group http://www.nature.com/drugdisc/index.html
Drug discovery & development Conferences
http://www.healthtech.com/conferences/upcoming.aspx?s=DDV
Discovery on Target http://www.healthtech.com/DOT/
Molecular Medicine Tri Conference http://www.triconference.com/
World Pharmaceutical Congress WPC http://www.worldpharmacongress.com/
How
to look for other unfamiliar terms
IUPAC definitions are reprinted with the
permission of the International Union of Pure and Applied Chemistry.
|
|