Guerrilla Warfare
Guerrilla Marketing
Guerrilla Innovation
Guerrilla Tactics in Pharmaceutical Innovation and Testing
Dr. V. Ravi ChandranR&D Practitioner
Life Enhancing Technologies, LLC.Allen, TX
USA
Do I develop one Molecule
at a time?
Questions in my mind:
Do I develop all the Drugs at one shot? Platform
Technology?What area
do I apply this Technology?
Status in the early 2000
Efficacious Toxic
Drugs entering market
Examples
I wanted to increase the efficacy and reduce the
toxicity i.e. Increase the Therapeutic Index
Leading Causes of Death650,000
559,000
250,000
143,000 131,000
Heart Diseases Cancer Doctors* Stroke ChronicRespiratory
Diseases
*JAMA Vol. 284, No.4, July 26, 2000
Among Heart Diseases, Heart
Attack is the leading cause of death in
both men and women*
*World Health Report 2004. Changing History, WHO 2004 pp 120-124 ISBN 92-4-156265-K
Guerrilla Tactic – 1 : Narrow area of attack with maximum impact
Guerrilla Tactic – 3 : New association among unrelated concepts
A drug/chemical that thins blood is an effective cardio-protective agent.
Can we therefore develop a new anti-platelet drug that is effective, but has minimal or
no side effects?
Important Conclusion Question
Guerrilla Tactic – 4 : Specificity of Approach to New Drug Development
We will attach a suitable chemical
group to the existing drug to
eliminate its toxicity and improve
Therapeutic Index.
NaturallyOccurring
Chemical Group
NonToxic
Good Carrier
to Site of Action
Must be detached & excreted or assimilated
Must have active group
to form covalent
permanent bond
Strategy Group Selection Criteria
Guerrilla Tactic – 5 : Look Inward
Where do ILook for solutionTo this question?
What is the mostAdvanced, compact
Highly energy efficient,Lean, mean
Fighting machine? Human Body
Guerrilla Tactic – 6 : Versatile
Which Amino Acids?
ContainingOH group
L - Threonine
L - Tyrosine
L – Hydroxy Proline
L – Serine
Surprising Results in Animal Models
All 3 Amino Acid Esters are equal
effective
L – Threonine ester is better than other two
and AspirinNone of the 3 Amino Acids
Esters showed any toxicity in rat
models
Guerrilla Tactic – 7 : Creativity turns Problems into Opportunities
How to rapidly advance a NCE without an IND from Lab to Clinical Trials
Guerrilla Tactic – 8 : Simple Techniques are sometimes most useful
What can be an effective, simple and reliable technique to measure effectiveness
of anti-platelet drugs in humans
Human Clinical Trials
Percentage increase in clotting time PLATROL vs.. Aspirin (Bayer) at 81mg dose based on 5-day average increase. The two PLATROL blocks shown above correspond to two separate volunteers who took the test drug over a period of 5 days. The third volunteer took Bayer Aspirin for 5 days. As per Figure 2, increase in clotting time for PLATROL occurred on the very first day of drug intake, and remained higher than Bayer ASA during the subsequent administrations.
PERCENTAGE INCREASE IN CLOTTING TIME - 81mg
26.2513.125
30.625
010203040
PLATROL PLATROL BAYER ASA
% IN
CR
EASE
Surprise in Metabolism
SALICYLIC ACID CONCENTRATION IN PLASMA ng/ml
020004000
60008000
10000
00.6
67 1.5 2.5 3.5 5 7 9 12 16
TIME IN HOURS
SA IN
PLA
SMA
ng/m
l
Platrol
Platrol
Platrol
ASA
ASA
Platrol
Surprise in blood profile
ASA Concentration in Blood ng/ml
0
200
400
600
800
1000
1 3 5 7 9 11 13 15
Hours after administration
ASA
in b
lood
ng/
ml Time
Platrol
Platrol
Platrol
ASA
ASA
Platrol
CONCLUSIONS
Acetyl group is responsible for Anti-Platelet
Activity of Aspirin
L-Threonine ester of Aspirin is a good carrier of
Acetyl Group
Salicylic Acid is also a good carrier of
Acetyl group
Are we finally getting closer to finding a “super”
Aspirin?
Are there better carriers of
Acetyl Group than Salicylic
Acid?
Let us go back and take one more look at Aspirin and Salicylic Acid.
Guerrilla Tactic – 9 : Capitalize on what others totally missed
Is there a naturally occurring molecule (that is essential to
the human body) comes very close to our requirements
Guerrilla Tactic – 10 : Nature has the Answer
Yes!
Acetylate L-Tyrosine and
test it for anti-platelet activity.
Make acetyl ester of all other naturally
occurring OH containing Amino
Acids.
Rat Whole Blood Clotting Time (min)Doses: Vehicle, 10, 20, 50 and 100 mg/kg
Clotting time (4 & 24 hours)
0.00
5.00
10.0015.00
20.00
25.00
30.00
0 1 1.301 1.3979 1.699 2
Log Dose (mg/kg)
Clo
tting
tim
e (m
in)
4 Hours AceTyro
24 Hours AceTyro
4 Hours AceSer
HUMAN TRIALS
OAT and OAS Effect on Human Blood Clotting Time
5
5.5
6
6.5
7
7.5
8
8.5
9
0 10 20 30 40 50 60
Time (Hrs)
Clot
ting
Tim
e (m
in)
Vol 1, 1000 mg (OAT)
Vol 2, 350 mg (OAT)
Vol 3, 1000 mg (OAT)
Vol 4, 750 mg (OAS)
Dramatic results with Acetylated Amino Acids!
Both at 81 and 325 mg dose, Bayer
Aspirin increased clotting time only
by 13%
O Acetyl Tyrosine increased
clotting time by more than 50%
and it was sustained after
24 hrs
O Acetyl Serine increased
clotting time by 23%
Advantages of Acetylated Amino Acids1. Non-toxic2. All metabolites are natural to human body3. All 4 AA are good carriers of acetyl group4. Mechanism of action is identical to Aspirin5. No Toxicity whatsoever6. All AAA are nutritional supplements7. Require no FDA approval to test 8. No NDA needed for marketing 9. Ideally suited for long term therapy
Guerrilla Tactic – 11 : Synergy
Now, how about Acetylated Dipeptides
Will they have any Anti –
platelet activity?
SynthesizedO,O-Diacetyl Serine-Serine
O,O-Diacetyl Serine-TyrosineO,O-Diacetyl Serine-Threonine
Human TrialDose 600 mg of O,O-Diacetyl Seryl Serine
H uman C lotting T ime
3
4
5
6
7
8
0 50 100 150 200 250
T im e (Hrs)
Clo
tting
Tim
e (m
in)
OO-DiS erine
1. Rapid increase in clotting time (up to 87.5%)2. Sustained increase in clotting time (37.5%) up to 8 days!3. Is it as good as dissolving clot like TPA? Or it can replace
Aspirin in sudden heart attack? Likely so.4. Non Toxic5. No Side effects or adverse reactions6. Qualifies as nutritional supplement, hence requires no IND
or NDA to test in human subjects7. Qualifies for matter of composition patent, as it is novel, and
patentable.
Salient Features of Di-Acetylated Dipeptide
Summary
9000 molecules in 3 years
Largest Drug Pipeline in the
World
Numerous Patents
covering 80% of the market
Creative processes and
Guerrilla tactics
Better Alternatives for 6 out of
top 10 – $ 41 Bill in sales
Better Alternatives for 68 out of top 200 – $ 120 Bill in
sales
Be on the lookout for
AAA – Once a day capsules, non-toxic, safe and
effective cardio-protective agent
S(-)Ketorolac- L-Threonine Ester, a superior pain killer
of narcotic strength, but with
no addiction potential
KeraKlear optic drops for dry
eyes …
Top Related