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The Thirteen
Commandments

on Drug Development

Author: Prof. Jeremy David Block
Departmental
Head of Neurology & Neurological Research.
IAGIM Research Director & Chief Scientist of the Locum International Group
.
B.Sc. (Eng.). M.Sc. D. Pharm. Neuro-immuno Epidemiologist N.I.E. (IAGIM Research Institute).

INNOVATIVE & GENERIC DRUGS

CURRENT ARTICLE - MULTIPLE SCLEROSIS DEVELOPMENT

Directive 1. "Write a clear SOP on drug development".
The goal of drug development is to present a quality rugged drug in the overall shortest development time. If your firm hasn't clear, concise drug development procedures and objectives on file, backed-up with all the necessary protocols, from cleaning, to process to analytical validation - don't start the project until this is done.

Directive 2."Run pilot studies - never uncontrolled
studies" - uncontrolled studies like non-validated assays may seem cheaper at the time but generally give the wrong guidance. A pilot study to evaluate a potential bioequivalent product with a fully validated analytical assay/ metabolite/impurity procedure, prior to the main study - often works out more cost effective than plunging into a high cost study without a pilot evaluation. Never do uncontrolled studies! (Clinical Director's Quote; "I don't do windows, doors or uncontrolled studies".)

Directive 3. "Write and Report Facts Faithfully"
A failed result is a positive endpoint as it may well highlight a wrong development route. If the result stays 'failed' after a full investigation, then report its impact and conclusions on the study or process faithfully. Never average results in order to bring an out-of-spec-result into specification. That's a GLP violation.

Directive 4. "Remember the 5C's of documentation"
Each documentation p
age of a report, protocol, method, or submission file should be like the 5C's of a flawless diamond (cut, clarity, clear, carat, etc.)

Clear
statements, aims, objectives conclusions and results inform the reviewer of where you are going.
Concise - a report that is succinct and to the point is all that's needed.
Compact, avoid any padding - period!
Controlled prospective protocols and procedures can be written for most studies or processes and will produce well-controlled documents.
Certify & check - review and audit every document your development unit produces. Sign, date and stamp documents that have passed a careful and thorough audit review process.

Directive 5. "Be innovative and creative"

Get your research department to talk to the developers, the production people, regulatory affairs and lab. Analysts. Do not compartmentalize your personnel. Cross departmental communication imparts development expertise and builds in genuine product value.
Challenge SOPs and procedures with the aim of producing a better product.

Documentation can always be made more attractive and user friendly. Writing procedures using attractive fonts and point sizes often invite readership.


Directive 6. "Be Open and Direct "

Never hide a bad study or cover up a poor result. All test results are valid unless an appropriate investigation procedures proves otherwise. Review your firm's out-of-specification operational procedure, and check that there are no organization omissions.

Directive 7. "Investigate all abnormalities"
Test results that are out-of-specification need formal written investigations based on a OOS SOP. The result may well be a sampling or technician error.
An extraneous peak that suddenly appeared
in an HPLC spectrum on investigation was found to arise from a change in an inactive dye vendor and not as an anticipated product impurity.

Directive 8.
"Run a mock PAI against your Application just before submitting."

The Drug Application will eventually be judged on the acceptability of the manufacture, control and testing facilities as documented in the agency file and in-house supporting data.
Audit every facet of the development, manufacture, control and stability procedures of the drug product.
Check and cross-reference each possible submission document against the manufacturing / control and laboratory files and equipment logs. Build in routine self-inspection checks during the development process. Formulate this quality development routine by SOPs and department audit checklists.


Directive 9.
"Make your Application really clear, concise and user friendly "

Well prepared and assembled print or electronic files and dossiers are a joy to read, review, and evaluate. Use all the desk top publishing tools to shape your firm's reports as attractive, stimulating, and interesting to read and review.
A document can entice or repel a reader simply by its construction - it can also be made a scientific work-of-art.


Directive 10.
"Treat regulators like your key personnel treat you
"
Listen to regulators - they too have their story to tell and may know regulations that you don't. Listen to their concerns clearly - it's in your product's interest.
There is no greater gratification in satisfying a PAI inspector's requests in real-time and in producing the documentation/data requested - before he leaves the firms' premises.
That regulator won't forget you or your product line up for review!
Work with regulators - or they will work against you and your product may not get to the market place on time.
Treat regulators with respect - as you would like to be treated. Agency official are understanding, experienced professionals whose prime concern is product quality and safety.

In any regulatory meeting the only welcome outcome is a win-win scenario. Both parties get what they want.
Remember an agency never looses an argument - the product only suffers and gets delayed due to incomplete data or regulatory requirements.


Directive 11.
"Talk to the regulators regularly."
Allow regulators to review protocols prior to starting the work. Get their opinion and express your concerns openly. Regulators like openness and honesty - and work well with polite, respectful and professional personnel.

Directive 12.
"Take a hard look a your cGMPs "

The absence of cGMP compliance simply adulterates your drug development pipeline. GMP compliance is targeted to play a more dynamic role in the drug review and PAI process.
(Establishment Evaluation System - FDA Drug Center and Office of Regulatory Affairs electronic data sharing)


Directive 13.
"Audit everything enthusiastically".

Leave no audit stone unturned!

Prof. J. D. BLOCK (N.I.E.)
B.Sc. (Eng. SANA) M.Sc.(U of WC) D. Pharm.(Wits) Neuro-Immuno Epidemiologist (IAGIM RESEARCH INSTITUTE)

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