3) Human Medicines Regulations, Advertising and Licensing Flashcards
How long does it take for a chemical compound to go from the lab to the
pharmacy shop as a medicine?
An average of about ten years
When was the first
comprehensive UK regulatory system introduced?
1971, they were introduced as part of the implementation of the requirements of the Medicines Act of 1968. And, basically, introduced the
need for licences to be issued to provide authority to people or organisations to carry out the whole range of activities associated with drugs. So, licensing covered the manufacture, sales, supply, and importation of drugs.
What became unlawful in 1971?
it became unlawful to engage with these activities except in accordance with appropriate licences and certificates or exemptions. So,
basically, the regulations stopped people doing any of these activities unless a licence had been
granted. And in issuing the licence, the licensing authority, they have to be satisfied as to the level of risk to the public and patients.
Who is the licensing body for the UK?
Now, key organisations are involved in regulating medicines. And they are Medicines and Healthcare
Products Regulatory Agency, the MHRA.
How many medicines do the MHRA cover?
Around 20,000 available in the UK
How are medicines granted by the MHRA?
If the product has met high standards of the three vital components of safety, quality, and efficacy.
How does a product get a license?
- Marketing authorisation is required before any medicine can be used to treat patients in the UK.
- The starting point towards getting that marketing authorisation is that the company or the producer of that medicine needs to have
permission to conduct a clinical trial. - Clinical trial results are produced to the MHRA and they are assessed by the MHRA.
- If results are acceptable, then the product is given marketing
authorisation or a product licence. - A key document is required to, as part of the licensing process is the summary of product characteristics, the SPC. And they are available online for many drugs on
this particular website.
What needs to be included within that document?
- name of the product,
- composition of the product, which includes actives, the actual ingredients, and the excipients.
- The pharmaceutical form,
- the pharmacological properties,
- the clinical particulars, and the pharmaceutical particulars.
Phase one of clinical trials?
usually involves healthy
people. And it’s designed to find out how the medicine works in the body and to see if side effects
increase at higher dosages. And this study, often, involves less than 100 people. If everything is fine
and the results are safe, effective, and of high quality, then a phase two clinical trial will proceed.
Phase two?
That examines whether the medicine work in patients with a particular condition or disease.
They can also identify common short-term side effects. And the size of the cohort, the size of the
population that’s tested is around 700 people.
Phase three?
In phase three, the aim is to gather further
information on how well the medicine works and how safe it is in the general population. And it’s
more, in more detail of the range and degree of side effects. So, the breadth of them.
What do the
results of these trials inform?
Informs the labelling and patient information for the medicine when it’s marketed.
If the product received a favourable result from this
phase of clinical trial…
…the regulatory body will issue marketing authorisation. Otherwise, known as
product licence, to allow the product to be placed on the market. However, further monitoring must
take place.
What is the further monitoring also known as?
the post-licensing
Some rare and unexpected
side effects may only occur after the medicine has been in use for several years. What is this process of monitoring known as?
pharmacovigilance