Current
Test Methods are Decades Old and Proven to be Poor Predictors of Both Human
Safety and Efficacy, which Costs Lives and Money
á
92% of all drugs found safe and
therapeutically effective in animal tests fail during human clinical trials due
to their toxicity and/or inefficacy, and are therefore not approved.[1]
á
Over 50% of the drugs that gain
FDA approval must later be withdrawn or relabeled due to severe, unexpected
side effects that animal testing did not predict.[2]
á
A 2012 study looked at whether
post-marketing serious adverse reactions to small molecule drugs could have
been detected from animal data.[3] Animal data
identified only nineteen percent of human adverse reactions, leading
researchers to conclude animal data is not relevant to predict serious adverse
human reactions to new small molecule drugs.[4]
á
Adverse drug reactions are the
fourth leading cause of death in the United States, killing around 100,000
patients annually and costing up to $4 billion in direct hospital costs alone.[5]
á
Adverse drug reactions are between
the 4th and 5th leading cause of death in the U.S.,
killing more people than all illegal drugs combined and costing the general
public over $136 Billion in health care expenses.[6]
á
The cost of developing a new drug
now ranges from $1.2 billion to $5 billion, while the number of new drug
approvals is at historic lows. Of the 4,300 companies engaged in drug
innovation, only six percent (261) have registered a new drug since 1950.
á
Worldwide, the pharmaceutical
industry spends $50 billion per year on pharmaceutical research and development
but produces only 21 new drugs per year (2008).
The
US Government is Investing Millions of Dollars into Alternatives to Animal
Testing. Why? Because they Know
the Animals Tests DonÕt Work.
á
A 2011 National Academy of Science
Report[7]
concluded that animal models were not useful in assessing countermeasures to
bioterrorism agents. The report
recommends that human cell-based 3D in vitro systems should be developed.
á
NIHÕs Tissue Chip for Drug
Screening initiative, a collaboration between the NIH,
Defense Advanced Research Projects Agency (DARPA) and U.S. Food and Drug
Administration has committed nearly $76 million over the course of the
five-year program, which was launched in fiscal year 2012.[8]
á
Many promising medications fail
due to toxicity, despite promising preclinical studies in animal and cell
models. These models are costly and poor predictors of drug response in humans.[9]
What
Scientists, Regulators and Government Officials Say About Animal Testing
á "We
have moved away from studying human disease in humans. We all drank the
Kool-Aid on that one, me included." With the ability to knock in or knock
out any gene in a mouse -- which "can't sue us," Zerhouni
quipped -- researchers have over-relied on animal data. "The problem is
that it hasn't worked, and it's time we stopped dancing around the problem...We
need to refocus and adapt new methodologies for use in humans to understand
disease biology in humans."[10]
á
"Currently, nine out of ten
experimental drugs fail in clinical studies because we cannot accurately
predict how they will behave in people based on laboratory and animal
studies."[11]
á
"Consider just one stark
statistic: Today, nine out of 10 compounds developed in the lab fail in human
studies. They fail, in large part because they behave differently in people
than they did in animal or laboratory tests."[12]
á
"If I did something in my
academic lab that was wrong 50-60% of the time, even 30% of the time, people
would think I was nuts, but thats how this industry works.
We need to change how we approach this.Ó[13]
á
"A major problem in the
pharmaceutical industry right now is that the drug development model is
actually broken. It just does not work. It takes many, many years to get a drug
to market, its incredibly expensive, innumerable animal lives are lost and then
the results from animals usually don't predict what happens in humans. So this
is a huge cost to the economy and to the pharmaceutical industry.Ó[14]
á
We are using the tools of the last
century to evaluate this centuryÕs advances." [15]
á
"You really have to design
the medicine for the species of interest ... You'll find it very rare to find a
medicine that will work in both." [16]
á
"Given that many of these
investigational anticancer drugs eventually fail, the animal models on which
clinical trials are predicated must at best be limited in power, and at worst
wildly inaccurate." [17]
[1] Innovation or
stagnation: Challenge and opportunity on the critical path to new medical
products. U.S. Food and Drug Administration Report, March 2004, p. 8.
[2] U.S. General Accounting Office. FDA Drug Review: Postapproval Risks 1976-1985. Publication
GAO/PEMD-90- 15, Washington, D.C., 1990.
[3] Peter J.K. van Meer, The Ability of
Animal Studies to Detect Serious Post Marketing Adverse Events is Limited,
64 Regulatory Toxicology and Pharmacology 345, 346 (2012).
[4] Peter J.K. van Meer, The Ability of
Animal Studies to Detect Serious Post Marketing Adverse Events is Limited,
64 Regulatory Toxicology and Pharmacology 345, 346 (2012).
[5] JAMA. 1998;279(15):1200-1205. doi:10.1001/jama.279.15.1200
[6] JAMA. 1998;279(15):1200-1205. doi:10.1001/jama.279.15.1200
[7] National Academy of Sciences Animal Models for
Assessing Countermeasures to Bioterrorism Agents, 2011
[8] National Institutes of Health Press Release, NIH
funds next phase of Tissue Chip for Drug Screening
program, September 23, 2014
[9] National Institutes of Health Press Release, NIH
funds next phase of Tissue Chip for Drug Screening program, September 23, 2014
[10] 2014 Former NIH Director Dr. Elias Zerhoun,
at NIH Record, Vol. LXV No. 13, June 21, 2013
[11] Mike Leavitt, Secretary of Health and Human
Services, U.S. Department of Health and Human Services (Food and Drug
Administration press release, FDA Issues Advice to Make Earliest Stages of Clinical
Drug Development More Efficient, January 12, 2006).
[12] Andrew C. von
Eschenbach, M.D. then Acting Commissioner of the FDA
(prepared statement for FDA Teleconference: Steps to Advance the Earliest
Phases of Clinical Research in the Development of Innovative Medical
Treatments, January 12, 2006).
[13] "Don Ingber, M.D., Ph.D, Wyss Institute at Harvard at Microphysiological
Systems Program Workshop at the FDA , May 2013
[14] Dr. Don Ingber, director
of Harvard University's Wyss Institute of Biologically Inspired Engineering.
Technology Review, July/August 2012
[15] The FDA Critical Path Initiative and Its Influence
on New Drug Development, Janet Woodcock and Raymond Woosley
Center for Drug Evaluation and Research, 2008
[16] Patrick M. O'Connor, head of oncology research for
Pfizer, quoted in The New York Times, November 24, 2006
[17] Dr Alexander Kamb, Global
Head of the Oncology Disease Area at the Novartis Institutes for Biomedical
Research, Nature Reviews Drug Discovery, 4, 161 - 165.