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MRCT’s Centre for Therapeutics Discovery Dr Andy Merritt Head of Chemistry [email protected] 1

MRCT's Centre for Therapeutics Discovery

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Page 1: MRCT's Centre for Therapeutics Discovery

MRCT’s Centre for Therapeutics Discovery

Dr Andy MerrittHead of Chemistry

[email protected]

1

Page 2: MRCT's Centre for Therapeutics Discovery

Forming partnershipsto drive early stagescientific research

to the patient

ACADEMIC ANDNON PROFITInstitutions

PHARMACEUTICAL BIOTECHNOLOGY

Markets

MRCheritage

established2000

CHARITYstatus 140+

staff

DRUGDISCOVERY

4 DRUGSOn market

7drugs

in clinic SM and Abresearch

DIAGNOSTICS

NEWTechnology

Page 3: MRCT's Centre for Therapeutics Discovery

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Early drug discovery Partner point

• Main role is to “de-risk” novel targets• Prove assays can be developed• Show starting molecules (Ab or SM) can be identified• Demonstrate target is “drug-able”• Deliver potent and selective molecules with IP

• Take to PoC in cells and/or relevant animal models• Show relevant effects in human tissues where possible• Give confidence in disease association

• Deliver quality data package supporting target validation• Reduce risks of clinical failures

MISSION - To progress promising early stage scientific discoveries and inventions into marketable products with a healthcare benefit.

Page 4: MRCT's Centre for Therapeutics Discovery

UNMETHEALTHCARE

NEEDS

Forming partnerships

PHARMA / BIOTECH

MRCTPATIENT

RESEARCH

Page 5: MRCT's Centre for Therapeutics Discovery

UNMETHEALTHCARE

NEEDS

PATIENT COLLABORATION

RESEARCH

MRCT

PHARMA / BIOTECH

Forming partnerships

Page 6: MRCT's Centre for Therapeutics Discovery

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Centre for Therapeutics Discovery (CTD)• Small Molecule

Drug Discovery• Antibody Engineering• Antibody drug conjugates• Structural biology

Adding value Scientific development

Based in “The Accelerator Building”

Page 7: MRCT's Centre for Therapeutics Discovery

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Disease focus Strategy

Balanced portfolio across disease areasMix of Ab and SM targetsWide academic network including cliniciansHighly collaborative with Academia, Pharma and BiotechExcellent project management

• High unmet medical need• Poorly served patients• Niche/orphan indications• Diseases of poverty

• Early stage, novel but high risk targets

• Focus on Target Validation• Take “validated” targets into

early stage drug discovery• Use synergies between SM

and Ab expertise

MRCT’s CTD is a centre of excellence in target validation and early drug discovery

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Resources Capability

Biology – 27 scientistsAssay Development & ScreeningCompound ProfilingCellular Pharmacology

Medicinal Chemistry – 23 scientistsComputational ChemistryMedicinal/Synthetic ChemistryADME

Biotherapeutics – 16 scientistsAntibody generationAntibody humanisationAffinity MaturationBiophysical optimisation

CRO Support Specialist screening (eg. Ion

Channels)Additional chemistry

synthesisIn vitro and in vivo ADME/PK

Structural Biology SupportProtein NMR and Crystallography

Embedded in Leicester University

(Mark Carr group)

Page 9: MRCT's Centre for Therapeutics Discovery

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Early drug discovery Screening capabilities

• Mix of Academic and Pharma

• Extensive experience and wide choice of assay platforms

• 384-well format• Capacity up to 250k cpds• In-house 120k cpds• Can screen libraries from

partners

Identify high quality tools and start points for medicinal chemistry

Thousands of compounds

Page 10: MRCT's Centre for Therapeutics Discovery

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Early drug discovery Medicinal chemistry

• Significant ex-Pharma experience• Over 150 years and 15+ clinical

candidates• Access to latest synthesis technology

• Additional synthesis capacity in Asia and UK (10 FTE)

• In house in vitro ADME/DMPK support• State of the art in silico design

• Supported by structural biology at Leicester University

Page 11: MRCT's Centre for Therapeutics Discovery

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Early drug discovery Antibody expertise

• Over 20 years experience• Seen as a world leader in humanisation• Built on MRC’s CDR grafting technology

• Now expanding to other techniques• Can raise antibodies• Optimisation of affinity and biophysical

characteristics• Using expertise to create antibody drug

conjugates (ADCs)• Using antibodies to direct small molecule

design (A2D2)

Page 12: MRCT's Centre for Therapeutics Discovery

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Drug discovery Delivering success

• 4 drugs on market

• 7 in clinical development in Pharma• 4 in pre-clinical development in Pharma

• MRCT Sustained by income stream

Page 13: MRCT's Centre for Therapeutics Discovery

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Pipeline Sustaining Success

• Roughly 20 projects at any time

• 12 small molecule• 6 antibody• 2 Antibody-drug

conjugates• Overall 5-7 at late stage• Remainder at validation

stage

Examples of disease areas• Cancer• Fibrosis• Pain• Infectious diseases• Alzheimer’s Disease and CNS• Autoimmune Diseases • Cushing’s disease • Inflammation

Page 14: MRCT's Centre for Therapeutics Discovery

Drug discovery Sustaining success

• Oncology– PAICS (small molecule target)– MNK1 (small molecule target)– ALK (Antibody drug conjugate)

• Inflammation and autoimmune disease– IL17BR (Antibody)– IL16 (Antibody)

• Alzheimer’s Disease– TAPAS (Antibody)

• Osteolysis and Osteoarthritis– Netrin 1 (Antibody)– Matriptase (Small molecule)

• Pain– GalR2 (Biological)

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Page 15: MRCT's Centre for Therapeutics Discovery

PAICS: Potent Inhibitors of a Novel Cancer Metabolic Target

• PAICS (phosphoribosylaminoimidazole carboxylase, phosphoribosylaminoimidazole succinocarboxamide synthetase) is a bifunctional enzyme involved in the de novo purine biosynthesis pathway

• Potential therapeutic window for targeting PAICS: rapidly dividing cancer cells are more dependent on de novo purine biosynthesis than normal cells

• PAICS mRNA is upregulated in breast and other cancers

•PAICS shRNA or CRISPR KD inhibits breast cancer cell proliferation and migration10% FBS

Time (hrs)

% C

onflu

ency

0 20 40 60 80 100 1200

20

40

60

80

100LM2 WTLM2 CR3LM2 CR14

Increasing stage of disease Normal Breast tissue

PAICS Gene Expression: Breast Cancer

CRISPR knockdown of PAICS

Proliferation (72h)

De novo Purine Biosynthesis

PAICS

ADENINE

GUANINE

Page 16: MRCT's Centre for Therapeutics Discovery

Biochemical IC50 (nM)

Cell IC50 (nM)

Average LogD

Kin Sol (mM)

Mouse t1/2 (po)

Mouse Clint (mL/min/kg)

Mouse Bioavailability

(%F)

Compound 1 11.5 180 1.3 218 3.2 35.0 97*Compound 2 3.4 75 1.6 224 3.1 15.0 73

Mean plasma exposure (ng/mL) v time for po dosing (10mg/kg) in miceRed: compound 1Blue: compound 2

PAICS: Potent Inhibitors of a Novel Cancer Metabolic Target

• Compounds show good potency and good PK properties in vivo

• Key compounds are tolerated very well in mice (14 day study)

• Murine In Vivo xenograft study underway

Biochemical Biophysical Cellular

Mouse Pharmacokinetics

• Fragment screening & medicinal chemistry generated highly potent, bioactive PAICS inhibitors

Page 17: MRCT's Centre for Therapeutics Discovery

Chronic nerve damage/injury induces alterations in primary sensory neurons in the dorsal root ganglion (DRG) and connections

Galanin and receptors have been implicated in pain

Peripheral GalR2 Neuropathic pain

• The galanin system (GalR2) is well validated with the regulation of nociception;– A 10-fold up-regulation in the levels of galanin in the DRG

after nerve injury– Use of GalR2 specific agonists in animal models and in

transgenic mice

Page 18: MRCT's Centre for Therapeutics Discovery

GalR2-induced analgesia with MRCT molecules

• MRCT have developed a non-small molecule asset, with a preferred pharmacological profile and shown it to be active in a rodent model of Neuropathic Pain (reversal of mechanical hyperalgesia).

Baseli

ne 1

Baseli

ne 2

Baseli

ne 3 NP 2h

r4h

r24

hr0.0

0.2

0.4

0.6

0.8

1.0

Effect of MRCT-1 in mouse model CCI model(10mg/kg i.p. n=12)

Time post-dose (h)

Paw

With

draw

l Thr

esho

ld (g

)

*** P<0.05 c.f. Basline+ P<0.05 c.f. NP

***

+ +

Activity in a functional in vitro GalR2 assay

log[Compound] (M)

% A

ctiv

ity (G

alan

in)

-12 -10 -8 -6 -40

20

40

60

80

100

120

MRCT-1Galanin

Pharmacological optimisation

% A

ctiv

ity (G

alan

in)

-12 -10 -8 -6 -4

0

20

40

60

80

100

120 GalaninMRCT-AMRCT-BMRCT-CMRCT-DMRCT-EMRCT-FMRCT-GMRCT-H

Page 19: MRCT's Centre for Therapeutics Discovery

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Projects Call for Targets

Alzheimer’s Research (Dementia Consortium)Arthritis Research UKMS SocietyParkinson’s UKDiabetes UK

• Access to worldwide network of academics

• Calls can be fine tuned to match Pharma interests• Disease relevance• Target class relevance

• Pharma can also propose targets they are interested in• De-risking at limited risk and

resource exposure• Links to disease focussed

charities

http://www.callfortargets.org/

Page 20: MRCT's Centre for Therapeutics Discovery

Project Structure Academics

• MRCT Resources provided free of charge• PI always included in project team• Agreement provides revenue share back to PI• Sliding scale• Takes into account background IP• IP jointly owned• PI allowed to publish if project team agree• MRCT can defer publication if conflict with

commercial strategy• MRCT normally has commercialisation rights

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Page 21: MRCT's Centre for Therapeutics Discovery

Benefits to Academics

• Access to drug discovery capability free of charge• No loss of control of own work• Potential to access tool compounds and Abs for

publications• Share of upside post-partnering• Possible access to industry funding downstream

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Page 22: MRCT's Centre for Therapeutics Discovery

Project Structure Pharma/Biotech

Collaborations• Milestones and target profile defined up front• Partner joins project team• Partner may provide compounds and/or resources• Defined points for transfer of project to partner

Partnering• Risk sharing• Upfront, milestones and royalty

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Page 23: MRCT's Centre for Therapeutics Discovery

Benefits to Pharma/Biotech

• Access to huge network of academic research• Potential to trawl network for specific solutions• Early sight of cutting edge science• De-risking early stage targets at limited risk and

resource exposure• Ability to shape project selection and direction• Access to academic expertise• Flexible deal terms

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Page 24: MRCT's Centre for Therapeutics Discovery

Dementia Consortium

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Patient needDisease experts

Funding

Early stage drug discovery

PoC

Late stage DDDevelopment

Clinical

New potential AD treatments

£3m

PI

Page 25: MRCT's Centre for Therapeutics Discovery

Project Selection Triage

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Project Proposals

Approved Projects

Initial TriageLimited data

Yes/No answer

Full ReviewDue diligence

Scientific rationaleFTO, IP, Competition

Patient need/populationRoute to market

External Expert Review

Disease experts

ExperimentalDue diligenceRepeat PI data

Additional studiesAnalysis of reagents

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Pharma Alliances

•Efficiencies in research, eg:• Target know-how• Assay build• Selectivity assays• Compound sets• 2o assays• In vivo models

• “Mini-portfolios” (3-5 targets)• Centred on Pharma’s interests• Focussed on a specific target

class or disease area• Find targets from MRCT

Network, Pharma suggestions and relevant experts

• Pharma engaged throughout process• Opportunity to shape

target selection and portfolio direction

Page 27: MRCT's Centre for Therapeutics Discovery

Center for Theraputics DiscoveryWhy us?

COLLABORATIONPI/Pharma

De-risking the targetRelevance to human diseaseCompound library, diversity sets and pharma links

Constructing a pharma quality data packageProfile of compounds and antibodiesWork in collaboration

Assay DevelopmentScreeningMedicinal chemistryAntibody Engineering

Melanocortin small molecule programmeLRRK2 small molecule programmeAnti IL25 ligand antibodyFibrosis antibody project

Academic research translationHigh risk drug discovery

Commercialising healthcare discoveries

Page 28: MRCT's Centre for Therapeutics Discovery

Dr Andy MerrittHead of Chemistry

[email protected]

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Questions?MRCT’s Centre for Therapeutics Discovery