Translational and early clinical research plans to (Portfolio Entry — PE)

Confidence inPortfolio Entry (PE)
TranslationSelecting animal model for predicting human dosing
SafetyTarget risks are identified and have mitigation plan in place (Target Safety Review)
Tier 1 and 2 safety assays performed on exemplar compounds (e.g. hERG, Bluescreen, etc.)
ExecutionPlan and timeline to IND submission is identified.
Fit in to TAU strategy
Patient benefit is clearly recognized
AssetTractable molecules in hand with path to IP
Developability assessment plan is in place.

[Gene therapy 20210224 Research playbook]

Portfolio Entry (PE)

Update on the evolving translation/biomarker/early clinical plan, including timeline of translatable biomarker & readiness for clinical use

Identification of any rate limiting steps, issues or capability gaps that must be resolved before an investment is made in clinical studies

Update on development of quantitative criteria for proposed EPOC

Progress on patient segmentation hypotheses

PK/PD and human efficacious dose & exposure prediction

Target-related safety issues highlighted as high risk has been addressed

There is an acceptable in vivo exposure multiple in non-GLP repeat dose toxicity studies in 2 species with at least 1 relevant non-clinical species using the planned clinical route of administration (single- and repeat-dose when applicable)

Off-target profiling and tiered safety profile are acceptable (Liver tox (e.g. InSphero), CV tox (e.g. hERG, telemetry), genotox (e.g. Bluescreen, 2-strain Ames/MN))

Doses can be established for IND enabling studies

The off-target and non-specific binding characterization has been performed and assessment is considered acceptable by project team. Any key concerns are addressed.

Description of any unusual resource/investment needs to advance to the next decision point

Confirm availability of test article for IND enabling work or time to obtain

Highlight competitive advantages of the selected Candidate, if the target is precedented

Summary of back-up program, if there is one

Developable molecule with FTO

Candidate Selection (CS)

Portfolio Entry (PE)Candidate Selection (CS)
DefinitionStrategy towards CS and IND is clarifiedClinical candidate is identified with sound confidence in mechanism, translation, safety, execution, and asset itself. Takeda is ready to start GLP studies in order to file IND, and invest for clinical studies.
Key Points to ConsiderThe concept is clear and based on solid evidence and biology. The go/no-go decision criteria are clear along with the key milestones. Anticipated issues/risks/bottlenecks towards CS are identified. There is a roadmap to collect enough information to create target product profile (TPP).Commitments at PE are met. Candidate Profile declared at PE is achieved or not. Issues/highlighted risks/bottlenecks identified at PE are resolved or not. Commitments towards next milestone are clarified. Issues/risks/bottlenecks towards next milestone are identified.
Mechanism & PharmacologyWith a tool gene therapy vector, Initial proof of principle outcome and assays to measure pharmacological outcome is obtained. vector optimization proposal vector characterization assays, and drug product characterization strategy in PDClinical dose prediction with a dose range to be used for calculating starting clinical dose. GLP safety study strategy in place. Route of administration determined (and device strategy if such is needed). Ability to execute the IND enabling studies, clinical study and the clinical plan.
TranslationTranslational plan that allows preclinical measurement of biomarker(s) that could be used for human dose calculation to be used in the clinic. Preclinical species translatability (e.g. there are species-specific differences in genomic sequence (eg. gene editing) or the human protein functions similarly in animal models. If so, the mitigation plan is identified.)The translational plan and alignment that ties the preclinical work to the future clinical plan (e.g. infectivity, transducability, expression of transgene across species and disease-relevant biomarkers)
SafetyIdentification of target risks (Target Safety Review) and mitigation plan in place including preclinical species homology for transgene product and vector and need for early regulatory engagement.Immunogenicity assessment of optimized vector and capsid and acceptable (DMPK)
Biodistribution and characterization of transgene expression of clinical candidate vector in translatable and relevant animal models
Non-GLP safety of clinical candidate vector and capsid has been assessed in vivo in relevant animal model
The off-target and non-specific binding characterization has been performed for the transgene product and assessment is considered acceptable by project team. Any key concerns are addressed.
ExecutionWinning strategy in competition is identified. Strategy in manufacturing is identified. Fit into technical success requirement and good proposal developability. Associated cost towards IND is identified. Regulatory, clinical and PVS on board with the overall project proposalProcess development plan for GMP manufacturing is clear.
Vector characterization assays (for Pharm Sci) and GMP mfg campaign
Regulatory strategy and support for early agencies interaction
Clinical team with defined unmet needs, clinical strategy and clinical plan
AssetStrategy on patent filing and third-party IP management is in place. Proposal of how to differentiate from competitors is identified.Overall FTO analysis is completed, and provisional patent application(s) filed or to be filed, and strategy with respect to the third party IP in place.

High-level scientific definition/requirements for each sub-stage in NS DDU (6/21)

Project StartLead GenerationPortfolio EntryCandidate Nomination (for SM)Candidate Selection
Strategy / differentiation Confirmed strategic fit, unmet medical needs (UMN) for the potential indications and favorable opportunity / advantage in the competitive landscape Developed preliminary TPP Shawn
Developed strategy of differentiation and related specific work plans
Developed a target candidate profile (TCP) based on the TPP
Established a compelling vision for competitive differentiation (including administration route, frequency, etc.)
Shown a clear value proposition for patients
Shown compelling advantage over competitors with risk mitigation plan/scenarios
Mechanism / Pharmacology Demonstrated rationale for the concept (ideally with in house data) using tool molecules if not directly targeting a disease causal gene
Provided genetic and genomic evidence supporting validity of the target if available
Demonstrated rationale for MoA with in-house pharmacological data to support progression of hit series
Developed a screening scheme with a series of in vitro / vivo assays to generate lead molecules
Proposed candidate PD markers
Provided pharmacological data with lead molecules to explain scientific rationale to address the UMN
Provided some patient evidence for the indication
Confirmed target engagement in target organs and defined PK/PD Shown convincing data to indicate disease association of the mechanism / target for the indication with appropriate models and/or assay systems
Assessed genetic and genomic evidence
Translation No killer on-target safety risk Possible path forward to demonstrate hypothesis in the clinic
Developed a translational plan for feasibility assessment
Provided biomarker options with defined candidates
Proposed animal models most likely to predict human dosing
Developed detailed timeline for TE & PD biomarker development
Defined PK/PD relationship and human efficacious dose & exposure prediction
Updated translation / biomarker / early clinical plan towards ePoC with patient segmentation strategy
Safety Assessed by Early Safety Review (TSR) and proposed counter measures for identified risks Confirmed opportunity to achieve an appropriate safety profile
No killer safety risk to advance the chemotypes / modalities
Defined relative safety profile threshold for CN/CS
Developed program-specific evaluation for on/off-target safety risks
Updated timeline for biomarker development (TE, PD, DR, PS)
Acceptable ADME-Tox profile or favorable "risk benefit" profile
Negative in Ames test
Achieved an acceptable tox profile in 2 weeks - 2 species tox studies with no critical CV risk and genotox
Confirmed clinical developability
Execution Assessed financial feasibility to advance the program from the portfolio perspective Highlighted potential rate limiting steps, issues or capability gaps with proposal of mitigation plan Developed feasible timeline for IND with availability of clinical materials
Asset Demonstrated confidence in hit identification or generation of tractable molecules
Made a plan to secure FTO in non-SM programs
Obtained / designed at least one hit / lead series or developed a clear plan for asset generation
Shown reasonable confidence in patentability
Identified and developed tractable molecules in hand with a path to IP
Developed further optimization scheme with robust in vitro / vivo assay methods
Selected molecules with efficacious plasma concentration and acceptable ADME-tox profile for preliminary tox studies Actual candidate profile reached a level of the desired profile defined at PE as a whole
Developable molecule with FTO and competitive advantages
Confirmed manufactural developability

12 | Confidential - for internal use only

* PE and CS decisions are made by PRC and RSLT, respectively

NEUROSCIENCE

High-Level Guideline for Activities/Deliverables in Pre-Clinical Stages

Project StartLead GenerationPortfolio EntryCandidate NominationCandidate Selection
Target Likely target indication and high level description of unmet medical need Preliminary TPP
Showed scientific rationale toward target indication
Competitive status
Obtained at least one
Preliminary asset strategy and TPP
Target candidate profile
Key Go/NoGo criteria for IND
Tractable molecules in hand with path to IP
Updated risk mitigation plan and competitive status
Go/NoGo criteria for IND
Timeline Gantt
Selected molecules for preliminary tox studies
Developable molecule with FTO

Essential for stage-up

Uncertain Spans

locationtranscriptionuncertainty
NS DDU 6/21 footer`12Confidential - for internal use only`
Pre-Clinical Stages slideMaiko Tanaka / Metabolomics / MIBG / Milestones (process)The leftmost column-1 cells are partly cut by the navigation pane; these appear to be navigation entries rather than table rows on this slide.
Pre-Clinical Stages slidelast row AssetThe bottom Asset row of the Pre-Clinical Stages slide is partly cut at the bottom of the photo; remainder continues on the next photo.