What I learned week 5
There were
several things this week that I learned about clinical trials and drug
development, as well as how to take this knowledge and impress future
businesses I apply to with terminology I've learned. The biggest thing career
wise I learned this week is to really stay current with what's happening within
the pharmaceutical world. This mean reading articles, even subscribing to
pharmaceutical magazines. This also means getting to know the companies I plan
to apply too. Knowing about the culture of a company is very important, because
it directs how they do business. Dr. Priefer acknowledged that if you can throw
out some terms when on an interview such as LD50, the amount of an ingested
substance that kills 50 percent of a test sample, for example, this already
puts you ahead of the other applicants because its shows you understand the
drug development process and a general knowledge of how things work; even if
you know just the basics. So that takes care of the career knowledge taken away
this week; the educational studies that both Dr. Priefer and Dr. Siwale
focused on were drug development and clinical drugs, drug chemistry and
biology and the phases of clinical investigation. Both speakers went into
detail about the phases of clinical investigation so I thought this would be
important to learn to memory. There are three main phases of clinical trials,
and an optional fourth. Phase I tests for possible harm, immediate side effects
and works out the correct dosage. This phase usually consists of young healthy
individuals, about 50 or so. Phase II tests whether treatment is effective in
patients, this also tests for more side effects and lastly tests against the
placebo drug. This group consists of around 500 individuals who are affected by
the disease. The last formal phase is phase III. This phase tests whether
treatment is still effective in patients, it also tests over longer periods
over different countries and tests against possible alternative treatments.
This is the largest phase, consisting of up to thousands of patients.
There three phases combined take ten to fifteen years to complete, and like is
aid before there is an optional phase IV. Phase IV tests over longer periods of
time, in different groups of people and / or combines with other treatments.
Dr. Siwale also educated us about the chemistry and biology of drugs. I
recalled some information from my low-level science classes such as biology,
chemistry, and disease and drug therapy. I learned terms such as dissolution
rate, partition coefficient, and drug solubility which are all terms/concepts
on how the drug enters and effects the body and how fast it effects the
bloodstream. Both Dr. Priefer and Dr. Siwale talked about the effective median
dose (ED) as well as the median toxic dose (TD), which I believe I now can
teach to someone else. The last thing I took away from Dr. Siwale's
presentation was on the topic of Orphan drugs. I remember reading about Orphan
drugs from my industry report but I didn't know in detail about them.
Basically, orphan drugs are drugs for rare disease that usually affect
less than 200,000 people in the united states. There is no reasonable
expectation when developing orphan drugs that research and developments costs
will be recovered, so I questioned why create them? So, I looked online. In
fact, the FDA Office of Orphan Products Development (OOPD) provides incentives,
such as cash vouchers for sponsors to develop products for rare diseases. The
program has successfully enabled the development and marketing of over 600
drugs and biologic products for rare diseases since 1983. Other financial
benefits and incentives include:
· Annual grant funding to defray the
cost of clinical testing
· Tax credits for the costs of clinical
research
· Assistance in clinical research study
designs
· Seven-year period of exclusive
marketing after an orphan drug is approved
· Waiver of Prescription Drug User Fee
Act (PDUFA) filing fees (over $1,000,000 per application for FY 2009)
And this is what
I learned this week!
Sources: https://www.fda.gov/forindustry/developingproductsforrarediseasesconditions/ucm2005525.html
Good discussion of what you learned. I like that you made connections and did not just describe what was discussed in class. Good job!
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