8-K

 

 

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 

 

FORM 8-K

 

 

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): August 12, 2019

 

 

IDEAYA Biosciences, Inc.

(Exact name of registrant as specified in its charter)

 

 

 

Delaware   001-38915   47-4268251

(State or other jurisdiction

of incorporation)

 

(Commission

File Number)

 

(IRS Employer

Identification Number)

7000 Shoreline Court, Suite 350

South San Francisco, California 94080

(Address of principal executive offices, including Zip Code)

Registrant’s telephone number, including area code: (650) 443-6209

 

 

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

 

 

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

 

 

Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

 

 

Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

 

 

Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered or to be registered pursuant to Section 12(b) of the Act.

 

Title of each class

 

Trading

Symbol

 

Name of each exchange

on which registered

Common Stock, $0.0001 par value per share   IDYA   The Nasdaq Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company  ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☒

 

 

 


Item 2.02

Results of Operations and Financial Condition.

On August 12, 2019, IDEAYA Biosciences, Inc. (the “Company”) announced its financial results for the second quarter ended June 30, 2019. The full text of the press release issued in connection with the announcement is furnished as Exhibit 99.1 to this Current Report on Form 8-K.

The information in this Item 2.02 and the attached Exhibit 99.1 are being furnished and shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall they be deemed to be incorporated by reference in any filing made by the Company under the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

 

Item 7.01.

Regulation FD Disclosure.

On August 12, 2019, the Company began utilizing a new corporate presentation (the “Corporate Presentation”). A copy of the Corporate Presentation is attached hereto as Exhibit 99.2.

The information in this Item 7.01 and the attached Exhibit 99.2 are being furnished and shall not be deemed to be “filed” for the purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of that section, nor shall they be deemed to be incorporated by reference in any filing made by the Company under the Securities Act or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

 

Item 9.01

Financial Statements and Exhibits.

(d) Exhibits.

 

Exhibit
No.
  

Description

99.1    Press Release dated August 12, 2019
99.2    Investor Presentation of IDEAYA Biosciences, Inc.


SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

 

    IDEAYA BIOSCIENCES, INC.
Date: August 12, 2019     By:  

/s/ Yujiro Hata

      Yujiro Hata
      President and Chief Executive Officer
EX-99.1

Exhibit 99.1

IDEAYA Biosciences, Inc. Reports Second Quarter 2019

Financial Results and Provides Business Update

South San Francisco, CA, August 12, 2019 – IDEAYA Biosciences, Inc. (Nasdaq:IDYA), an oncology-focused precision medicine company committed to the discovery and development of targeted therapeutics for patient populations selected using molecular diagnostics, provided a business update and announced financial results for the second quarter ended June 30, 2019.

“The initiation of our Phase 1/2 basket trial evaluating IDE196 in patients with solid tumors harboring GNAQ/11 mutations is an important step in the clinical development of IDE196. We are identifying and enrolling patients with solid tumors having likely pathogenic GNAQ/11 hotspot mutations that activate the PKC signaling pathway. We believe this pathway has clinical significance in metastatic uveal melanoma, cutaneous melanoma and other solid tumors,” said Yujiro S. Hata, Chief Executive Officer and President at IDEAYA Biosciences.

IDEAYA continues to advance its MAT2A synthetic lethality program to treat patients having tumors with MTAP deletion. The company remains on track to select a MAT2A inhibitor as a development candidate for IND-enabling studies in Q4 2019. IDEAYA is also progressing a broad pipeline of additional synthetic lethality programs. These include Pol theta for patients having tumors with BRCA or other homologous recombination deficiency (HRD) mutations, and Werner (WRN) for patients having tumors with high microsatellite instability (MSI).

Key highlights for IDEAYA’s research and development programs include:

Clinical Program IDE196

IDE196

 

   

Initiated IDEAYA’s Phase 1/2 tissue-type agnostic GNAQ / GNA11 basket trial in June 2019 entitled “A phase 1/2 study of IDE196 in patients with solid tumors harboring GNAQ/11 mutations or PRKC fusions (ClinicalTrials.gov Identifier: NCT03947385)

 

   

Dosed first patient in the Phase 1/2 basket trial with IDE196 in June 2019

 

   

Completed enrollment of first cohort in the Phase 1 dose escalation portion of the Phase 1/2 trial at sites in the U.S. and Australia, and anticipate dose selection for the Phase 2 portion of the trial by year-end 2019

 

   

Identified patients for potential enrollment in the Phase 1/2 basket trial with GNAQ/GNA11 hotspot mutations in solid tumors outside of uveal melanoma

 

   

Anticipate release of interim data from the Phase 1/2 basket trial in Q2/Q3 2020

 

   

Continued the ongoing Phase 1 clinical trial, entitled “A Phase I, multi-center, open-label, study of LXS196, an oral protein kinase C inhibitor, in patients with metastatic uveal melanoma” (ClinicalTrials.gov Identifier: NCT02601378), being conducted by Novartis

 

   

As of August 10, 2019, five of 28 evaluable patients in the monotherapy BID cohort continue on therapy for more than two years, with four of these patients having a partial response or stable disease, and one patient experiencing disease progression from stable disease after approximately 22 months of treatment, and in each case, surpassing the historical median overall survival of approximately 10 months for metastatic uveal melanoma


   

Targeting preliminary regulatory discussions with the U.S. Food and Drug Administration (FDA) in Q4 2019 on IDE196 regulatory path for potential approval in metastatic uveal melanoma

 

   

Signed collaborative research agreement with AstraZeneca in August 2019 to evaluate preclinical combination of IDE196 and Osimertinib (Osi), an EGFR inhibitor

Synthetic Lethality Preclinical Pipeline

MAT2A

 

   

On track to select development candidate for IND-enabling studies in Q4 2019

 

   

Demonstrated in vivo efficacy in HCT116 MTAP null model with tumor growth inhibition (TGI) of ~60 to ~100% at dose range of 3 to 30 mg/kg once per day, and completed 7-day preclinical in vivo tolerability studies of several lead series compounds

 

   

Biomarker evaluation in MTAP deletion

Pol theta

 

   

In vivo characterization of lead series compounds

 

   

Biomarker evaluation in BRCA/HRD

Synthetic Lethality Drug Discovery Platform

 

   

Werner: Achieved <100 nanomolar IC50 potency in Werner helicase biochemical assay

 

   

Dual CRISPR synthetic lethality target discovery: evaluating data sets in multiple cell lines for identification of novel synthetic lethality targets

“We continue to aggressively progress our programs, underscoring IDEAYA’s commitment to build a leading precision medicine oncology company targeting defined patient populations. We are excited for the continued clinical advancement of IDE196 in our tissue-type agnostic basket trial, and to further advance our pipeline of synthetic lethality programs, an emerging new class of precision medicine,” said Yujiro S. Hata, Chief Executive Officer and President at IDEAYA Biosciences.

Corporate Updates

IDEAYA completed an initial public offering in May 2019, raising $57.5 million of gross proceeds before deducting underwriting discounts, commissions and estimated offering expenses through the sale of 5,750,00 shares of common stock.

IDEAYA anticipates that existing cash, cash equivalents and short-term marketable securities of $120.2 million (as of June 30, 2019) will be sufficient to fund planned operations into the third quarter of 2021.


Financial Results

As of June 30, 2019, IDEAYA had cash, cash equivalents and short-term marketable securities totaling $120.2 million. This compared to cash, cash equivalents and short-term marketable securities of $90.0 million at December 31, 2018. The increase was primarily due to the receipt of $50.2 million in net proceeds from IDEAYA’s initial public offering, which was completed in May 2019.

Research and development expenses for the three months ended June 30, 2019 totaled $8.9 million compared to $6.4 million for the same period in 2018. The increase was primarily due to costs incurred in connection with the initiation of IDEAYA’s Phase 1/2 clinical trial to evaluate IDE196 in solid tumors, as well as an increase in personnel and consulting costs.

General and administrative expenses for the three months ended June 30, 2019 totaled $2.4 million compared to $1.1 million for the same period in 2018. The increase was primarily due to an increase in personnel costs and professional fees in connection with becoming a publicly traded company.

The net loss for the three months ended June 30, 2019 was $10.7 million compared to $7.0 million for the same period in 2018. Total stock compensation expense for the three months ended June 30, 2019 was $0.5 million compared to $0.2 million for the same period in 2018.

 

 

About IDEAYA Biosciences

IDEAYA is an oncology-focused precision medicine company committed to the discovery and development of targeted therapeutics for patient populations selected using molecular diagnostics. IDEAYA’s approach integrates capabilities in identifying and validating translational biomarkers with small molecule drug discovery to select patient populations most likely to benefit from the targeted therapies IDEAYA is developing. IDEAYA is applying these capabilities across multiple classes of precision medicine, including direct targeting of oncogenic pathways and synthetic lethality – which represents an emerging class of precision medicine targets.

 

 

Forward-Looking Statements

This press release contains forward-looking statements, including, but not limited to, statements related to (i) expected timing for dose selection for the Phase 2 portion of the IDE196 Phase 1/2 basket trial, release of interim data for the IDE196 Phase 1/2 basket trial, preliminary regulatory discussions with the FDA on the regulatory path for IDE196, selection of a MAT2A inhibitor development candidate for IND-enabling studies, and selection of a Pol theta inhibitor development candidate for IND-enabling studies, (ii) the extent to which IDEAYA’s existing cash, cash equivalents and short-term marketable securities will fund its planned operations and (iii) IDEAYA’s ability to select patients likely to benefit from IDEAYA’s targeted therapies. Such forward-looking statements involve substantial risks and uncertainties that


could cause IDEAYA’s preclinical and clinical development programs, future results, performance or achievements to differ significantly from those expressed or implied by the forward-looking statements. Such risks and uncertainties include, among others, the uncertainties inherent in the drug development process, including IDEAYA’s programs’ early stage of development, the process of designing and conducting preclinical and clinical trials, the regulatory approval processes, the timing of regulatory filings, the challenges associated with manufacturing drug products, IDEAYA’s ability to successfully establish, protect and defend its intellectual property and other matters that could affect the sufficiency of existing cash to fund operations. IDEAYA undertakes no obligation to update or revise any forward-looking statements. For a further description of the risks and uncertainties that could cause actual results to differ from those expressed in these forward-looking statements, as well as risks relating to the business of IDEAYA in general, see IDEAYA’s recent Quarterly Report on Form 10-Q filed on August 12, 2019 and any current and periodic reports filed with the U.S. Securities and Exchange Commission.

 

 

Investor and Media Contact

IDEAYA Biosciences

Paul Stone

Chief Financial Officer, General Counsel

pstone@ideayabio.com

 

LOGO


IDEAYA Biosciences, Inc.

Condensed Statements of Operations and Comprehensive Loss

(in thousands, except share and per share amounts)

(Unaudited)

 

     Three Months Ended
June 30,
    Six Months Ended
June 30,
 
     2019     2018     2019     2018  

Operating expenses

        

Research and development

   $ 8,859     $ 6,432     $ 16,855     $ 11,634  

General and administrative

     2,376       1,139       4,474       2,024  
  

 

 

   

 

 

   

 

 

   

 

 

 

Total operating expenses

     11,235       7,571       21,329       13,658  
  

 

 

   

 

 

   

 

 

   

 

 

 

Loss from operations

     (11,235     (7,571     (21,329     (13,658

Interest income

     573       568       1,098       850  

Other income (expense), net

     6       8       6       76  
  

 

 

   

 

 

   

 

 

   

 

 

 

Net loss

   $ (10,656   $ (6,995   $ (20,225   $ (12,732
  

 

 

   

 

 

   

 

 

   

 

 

 

Change in unrealized gains (losses) on marketable securities

     29       (6     68       (32
  

 

 

   

 

 

   

 

 

   

 

 

 

Comprehensive loss

   $ (10,627   $ (7,001   $ (20,157   $ (12,764
  

 

 

   

 

 

   

 

 

   

 

 

 

Net loss per share attributable to common stockholders, basic and diluted

   $ (1.30   $ (7.47   $ (4.32   $ (14.41
  

 

 

   

 

 

   

 

 

   

 

 

 

Weighted average number of shares outstanding, basic and diluted

     8,218,010       936,406       4,679,206       883,674  
  

 

 

   

 

 

   

 

 

   

 

 

 


IDEAYA Biosciences, Inc.

Condensed Balance Sheet Data

(in thousands, except share and per share amounts)

(Unaudited)

 

     June 30,
2019
     December 31,
2018 (1)
 

Cash and cash equivalents and short-term marketable securities

   $ 120,163      $ 89,961  

Total assets

     133,358        96,541  

Total liabilities

     12,750        7,098  

Total stockholders’ equity (deficit) and redeemable convertible preferred stock

     120,608        89,443  

 

(1)

Derived from the audited financial statements for the year ended December 31, 2018, included in the Company’s Prospectus filed pursuant to Rule 424(b)(4) under the Securities Act with the U.S. Securities and Exchange Commission on May 24, 2019.

EX-99.2

Slide 1

IDEAYA Biosciences Corporate Presentation August 2019 Exhibit 99.2


Slide 2

Safe Harbor Statement CONFIDENTIAL Certain statements in this presentation and the accompanying oral commentary are forward-looking statements. These statements relate to future events or the future financial performance of IDEAYA Biosciences, Inc. (the “Company”) and involve known and unknown risks, uncertainties and other factors that may cause the actual results, levels of activity, performance or achievements of the Company or its industry to be materially different from those expressed or implied by any forward-looking statements. In some cases, forward-looking statements can be identified by terminology such as “may,” “will,” “could,” “would,” “should,” “expect,” “plan,” “anticipate,” “intend,” “believe,” “estimate,” “predict,” “potential” or other comparable terminology. All statements other than statements of historical fact could be deemed forward-looking, including any expectations regarding the Company's commercial engine as a force multiplier for research and development initiatives; any projections of financial information, market opportunities or profitability; any statements about historical results that may suggest trends for the Company's business; any statements of the plans, strategies, and objectives of management for future operations; any statements of expectation or belief regarding future events, potential markets or market size, or technology developments; and any statements of assumptions underlying any of the items mentioned. The Company has based these forward-looking statements on its current expectations, assumptions, estimates and projections. While the Company believes these expectations, assumptions, estimates and projections are reasonable, such forward-looking statements are only predictions and involve known and unknown risks and uncertainties, many of which are beyond the Company's control. These and other important factors may cause actual results, performance or achievements to differ materially from those expressed or implied by these forward-looking statements. The forward-looking statements in this presentation are made only as of the date hereof. For a further description of the risks and uncertainties that could cause actual results to differ from those expressed in these forward-looking statements, as well as risks relating to the business of the Company in general, see the Company's periodic filings with the Securities and Exchange Commission (the "SEC"), including its Quarterly Report on Form 10-Q for the quarter ended June 30, 2019 and any current and periodic reports filed thereafter. Except as required by law, the Company assumes no obligation and does not intend to update these forward-looking statements or to conform these statements to actual results or to changes in the Company's expectations. This presentation concerns anticipated products that are under clinical investigation and which have not yet been approved for marketing by the U.S. Food and Drug Administration (FDA). It is currently limited by Federal law to investigational use, and no representation is made as to its safety or effectiveness for the purposes for which it is being investigated.


Slide 3

IDEAYA HIGHLIGHTS Synthetic Lethality (SL) Direct Targeting of Oncogenic Pathways PRECISION MEDICINE TARGET CLASSES IDEAYA Biosciences Oncology Focused Precision Medicine Company Werner Syndrome Helicase is Required for the Survival of Cancer Cells with Microsatellite Instability Mutations in GNA11 in Uveal Melanoma NEJM November 2010; Cell Press – iScience March 2019 Clinical stage precision medicine pipeline Programs are biomarker enabled Extensive drug discovery capabilities Public Company (NASDAQ: IDYA) Proven leadership team Targeting multiple SL development candidates IDE196 Ph1/2 basket trial FPI Q2’19 IDE196 Ph1/2 interim data Q2/Q3 2020 MAT2A Development Candidate Q4’19 2nd SL Development Candidate H1’20 GNAQ/GNA11, MTAP, BRCA/HRD, High-MSI Dual CRISPR & Structural Biology Anticipate cash runway into Q3’21 Analysts: JPM, Citi, Jefferies +100 years collective experience Increasing awareness in the scientific literature of the relevance of GNAQ and GNA11 mutations and of kinase fusions in cancer IDEAYA Publication March 2019


Slide 4

IDEAYA Organization Proven Leadership Team From Top Oncology Companies Michael Dillon, Ph.D. SVP, Chief Scientific Officer, Head of Research Julie Hambleton, M.D. SVP, Chief Medical Officer, Head of Development Jeff Hager, Ph.D. SVP, Chief Technology Officer, Head of Target Discovery and External Innovation Bao Truong, VP, Head of Regulatory Mark Lackner, Ph.D. SVP, Head of Biology & Translational Sciences Director and Principal Scientist, Genentech Paul Stone, J.D. SVP, Chief Financial Officer Partner, General Counsel and COO, 5AM Ventures VP Regulatory Affairs, Ignyta COO at Flexus Biosciences Global Discovery Chemistry Head, Oncology, NIBR VP, Head of US Medical Affairs, Bristol-Myers Squibb VP of Biology, Seragon; Senior Director of Biology, Aragon LEADERSHIP TEAM Yujiro Hata, M.B.A. President, Chief Executive Officer, Director Paul Barsanti, Ph.D. VP, Head of Drug Discovery Executive in Residence, 5AM Ventures


Slide 5

IDEAYA’s Precision Medicine Oncology Pipeline Indication Biomarker Preclinical IND Phase 1 Phase 2 Phase 3 Status IDE196 PKC inhibitor MUM Mono GNAQ/11 Ph1 Data at AACR April 2019 Solid Tumors GNAQ/11 Ph1/2 Basket Trial FPI Q2’19 MUM Combos GNAQ/11 Preclinical Validation NSCLC + EGFRi PKC-delta Preclinical Validation Direct Targeting Indication Biomarker Preclinical IND Phase 1 Phase 2 Phase 3 Status MAT2A Solid Tumors MTAP Targeting Development Candidate Q4 2019 PARG Solid Tumors BER, BRCA Targeting 2nd SL Development Candidate H1 2020 Pol-theta Solid Tumors HRD/BRCA WRN Solid Tumors High-MSI Synthetic Lethality PKC = protein kinase C, MUM = metastatic uveal melanoma, NSCLC = non small cell lung cancer HRD = homologous recombination deficiency, MSI = microsatellite instability Candidate Pipeline Research Pipeline


Slide 6

IDE196 Compound Profile IDE196 is a potent and selective Protein Kinase C (PKC) Inhibitor IDE196 IC50 (nM) PKC Activity Classical Novel Atyp. alpha beta 1 beta 2 gamma delta epsilon eta theta zeta 25 66 58 11 4 3 1 3 >2000 Single Agent IDE196 Induces Tumor Regression 92.1 mutant GNAQ xenograft Potent across key PKC isoforms Single agent tumor regression in GNAQ/GNA11 mutant xenograft Highly selective against other kinases High Kinome Selectivity Tumor volume (mm3 +/- SEM) Days post implant LX196 = IDE196, Novartis data; AEB071 = Novartis 1st generation PKC inhibitor


Slide 7

Mutations in small GTPases, GNAQ or GNA11, can lead to activation of PKC signaling, a genetic driver of cancer Van Raamsdonk, CD, et. al, Nature 2009; Van Raamsdonk CD, et. al, NEJM 2010; Piperno-Neumann S, et. al, J Clin Oncol 2014; Oncotarget, May 2016, Carita et al Activating GNAQ or GNA11 mutations in 90% of uveal melanoma patients Likely pathogenic “hot spot” mutations have been identified in other solid tumors Found in multiple solid tumors, including cutaneous melanoma and colorectal Evaluating potential combinations with MEK and additional mechanisms Carita et al. reported enhanced preclinical in vivo efficacy of PKC inhibitor in combination with MEK IDE196


Slide 8

GNAQ/GNA11 Mutations Basket GNAQ/GNA11 Mutations Found in Multiple Cancers Phase 1/2 Tissue Type Agnostic Basket Trial FPI Q2 2019 Foundation Medicine Patient Database GNAQ/GNA11 mutations found in 1.4% of tumors, of which ~25% are likely pathogenic (“hotspot”) Functional validation ongoing for activating nature of GNAQ/11 non-hotspot mutations GNAQ/GNA11 Patients in Major Market Countries Data estimates for GNAQ/GNA11 mutations from The Cancer Genome Atlas in cBioPortal Cancer Type N GNAQ (%) GNA11 (%) Total (%) Uveal Melanoma (UM) 80 50 45 95 Cut. Melanoma (CM) 290 2.1 2.8 4.9 Colorectal 367 2.7 1.9 4.6 Pancreatic 126 0.8 1.6 2.4 Stomach 393 0.8 1.5 2.3 Cervical 194 1.0 1.0 2.0 Lung Adeno 533 0.9 0.8 1.7 Bladder 394 0.8 0.8 1.6 (Patients in 1,000’s) US, EU5, and Japan ~3.5 K GNAQ/11 Metastatic Uveal Melanoma (MUM) ~2.5 K GNAQ/11 Other Solid Tumors (Hotspot) Estimation based on preliminary structural biology prediction of function of non-hotspot GNAQ / GNA11 mutations (~25%) Major Market Countries = US, EU, and Japan


Slide 9

Metastatic Uveal Melanoma (MUM) Removal of the eye (”enucleation”) Surgery to save eye Radiation treatment Iodine-125 plaque Proton beam Other treatments Laser, tumor resection Treatment Options for Primary Disease ~ 90% of uveal melanoma patients harbor activating GNAQ or GNA11 mutation ~ 50% of uveal melanoma patients get metastatic disease, primarily to the liver No FDA-approved therapies Median overall survival (OS) approximately 10 months Historical response rates observed in published studies generally between 0 - 10% across various experimental therapies IDE196: Targeting Metastatic Uveal Melanoma (MUM) High Unmet Medical Need & Devastating Disease Goal to address high unmet medical needs in cancer through precision medicine Therapeutic Advances in Medical Oncology, Review, January 2018


Slide 10

IDE196 Phase 1 Dose Escalation monotherapy results in Metastatic Uveal Melanoma AACR 2019, Novartis Data; Data cut-off: Sep 30 2018; Response data by investigator assessment Treatment LXS196 200 mg BID LXS196 300 mg BID LXS196 400 mg BID -30 22/30 (73%) Disease Control Rate (SD+PR+CR) 8/30 (27%) Tumor Regression >30% 4/30 (13%) ORR (PR+CR) Change from baseline, % –100 –50 0 50 100 Prior IO Prior anti-PD-1/PD-L1 and/or anti-CTLA4 agents As of April 2019 Average duration of response (PR+CR) : +427 days As of August 2019 5 of 28 evaluable patients on therapy >2 years Average duration of response as of April 2019 for four patients with confirmed PR = 91, 395, +554, and +668 days Of the five patients on therapy as of August 2019, four patients have PR or SD; one patient progressed from SD to PD at ~22 months SD = stable disease; PR = partial response, CR = complete response, ORR = overall rate of response


Slide 11

Prior clinical trials in MUM show unmet medical need IDE196 Phase 1 monotherapy data provides potential to be backbone of care in Metastatic Uveal Melanoma Agent Trial Disease Control Rate % (SD+PR+CR) >30% Tumor Regression ORR % (CR+PR) Duration of CR/PR Responses (days) Median PFS (months) IDE196 BID (PKC) + Phase 1 73% 27% 13% 91, 395, +554, +668 days 4.14 + AACR 2019, Novartis Data; Data cut-off: Sep 30 2018; Response data by investigator assessment; average duration of response as of April 2019 *Journal of Clinical Oncology, April 2018, Carjaval et al. Selumetinib in earlier Phase 1/2 trial had an ORR of 14% but did not confirm in Ph3; **Ther Adv Med Oncology, Feb 2018, Carjaval, et al. Trametinib SD >16 weeks; *** Journal of Clinical Oncology, Jan 2017, Deo et al Immunocore’s Phase 1 study on IMCgp100 enrolled a subset of metastatic uveal melanoma patients with HLA-A2 allele (~50% MUM patients). The study had 16 evaluable patients with HLA-A2 allele reporting 2PRs (~11% ORR) Agent Trial Disease Control Rate % (SD+PR+CR) >30% Tumor Regression (uPR+cPR) ORR % (CR+PR) Duration of Responses (days) Median PFS (months) Targeted Therapy Selumetinib + Darcabazine (MEK + Chemo)* Phase 3 ~ ~ 3% 43, 56, & 146 days 2.8 Trametinib (MEK)** Phase 1 25% 0% 0% ~ 1.8 Immuno Oncology Ipilimumab (CTLA4)*** Retrospective Review 21% ~ 4% ~ 2.8 Pembrolizumab, nivolumab or atezolizumab** (PD1 or PDL1) Case Series 12.5% ~ 3.6% ~ 2.8 Ongoing IDE196 Phase 1 Clinical Trial (Novartis)


Slide 12

GNAQ & GNA11 Mutations Found in ctDNA of Uveal Melanoma Patients Circulating Tumor DNA (ctDNA) of GNAQ/GNA11 Mutations Targeting to identify patients earlier in disease to enhance response Circulating GNAQ/GNA11 mutations may be an early indicator of disease progression Plan to use ctDNA diagnostics for patient identification in Phase 1/2 basket study ctDNA diagnostics may enable early detection of patients likely to develop metastatic disease, and as such, enable selection for adjuvant therapy Average period from diagnosis of primary uveal melanoma to metastatic disease is 3 ½ to 15 years Beasley et al JCO Precision Oncology 2018. NAD = No Active Disease; PD = Progressive Disease


Slide 13

Existing Diagnostics Provide Path to Execute GNAQ/GNA11 & PKC Fusions Basket Trial GNAQ/GNA11 mutations listed on Foundation NGS panel GNAQ/GNA11 mutations listed on ctDNA liquid biopsy panel PKC fusions listed on Illumina fusion panel GNAQ/GNA11 mutations listed on ctDNA liquid biopsy panel Point Mutations (SNVs) (73 Genes) AKT1 ALK APC AR BRAF BRCA1 BRCA2 CCND1 CDK4 CDK6 CDKN2A CTNNB1 ESR1 EZH2 FBXW7 FGFR1 GNA11 GNAQ GNAS HNF1A JAK2 JAK3 KIT KRAS INSR NUMBL ROS1 MAML2 NUTM1 RSPO2/3 MAST1/2 PDGFRA/B TERT MET PIK3CA TFE3 MSMB PKN1 TFEB MUSK PPARG THADA MYB PRKCA/B TMPRSS2


Slide 14

GNAQ/GNA11 Mutations and TMB in Skin Melanoma BRAF/NRAS & GNAQ/GNA11 Profile GNAQ/GNA11 mutations in Skin Melanoma are associated with low Tumor Mutation Burden & mutually exclusive with BRAF/NRAS Skin Melanoma BRAF – non-V600E BRAF – V600E* NRAS- MT* GNAQ/GNA11- Q209 GNAQ/GNA11-R183 = exclusivity = neutral GNAQ/GNA11- Mutant Melanoma Non-GNAQ/GNA11- Mutant Melanoma IO = immuno-oncology; TMB = tumor mutational burden; Tumor mutation burden data and mutation status from Foundation Medicine Insights database; Exclusivity based on Genie analysis: values are based on observed vs expected mutations ratio compared to the WT group (WT BRAF, WT NRAS) * p-value < 10-3 for lack of co-occurrence of GNAQ/GNA11 (Q209/R183) mutations and BRAF V600E and NRAS MT Melanoma tumors with GNAQ/GNA11 hotspot mutations have low TMB, consistent with lack of activity for IO agents GNAQ/GNA11 melanoma patients largely not addressable by BRAF inhibitors 50 40 30 20 10 0 Number of Samples TMB Low TMB High 1500 1250 1000 500 250 0 Number of Samples 750 TMB Low TMB High


Slide 15

PKC-delta implicated in EGFRi Resistance IDE196 Potential Indication Expansion EGFRi-resistant NSCLC Targeting PKC-delta as a Therapeutic Strategy against Heterogeneous Mechanisms of EGFR Inhibitor Resistance in EGFR-Mutant Lung Cancer Inhibition of PKC-delta sensitizes TKI-resistant EGFR-mutant NSCLC to EGFR TKI Target Population: 40% EGFRi resistant NSCLC conferred through PKC-delta Biomarker: nuclear localization of PKC-delta December 2018 Tumor size (mm3) Tumor size (mm3) Days after treatment Days after treatment H1975 - EGFR-mut (T790M) TM0204 PDX - EGFR-mut (T790M) Cancer Cell, Dec 2018, Sotra = PKC inhibitor, Gef = EGFRi gefitinib, AZD9291 = EGFRi osimertinib IDE196 + EGFRi (Osi) Preclinical Efficacy Evaluation IDEAYA data; performed at Charles River Labs (CRL) Signed collaborative research agreement with AstraZeneca in August 2019 to evaluate preclinical combination of IDE196 and Osimertinib, an EGFRi Preliminary in vivo validation of published Cancer Cell data for IDE196 and Osi in H1975-e290 cell line


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IDE196 Phase 1/2 Basket Trial Design Expanding the Value of IDE196 to Other Solid Tumors IDE196 PKC inhibitor Phase 1 MUM (Ongoing) Phase 1/2 GNAQ/GNA11 Basket Trial GNAQ/GNA11 Hotspot Metastatic Uveal Melanoma Cutaneous Melanoma (CM), Colorectal, Other Solid Tumors MUM: IDE196 combos NSCLC: IDE196 + EGFRi combo Ph1/2 Basket Trial FPI Achieved Q2 2019 Sites active in US & Australia Target to initiate combos by H1 2020 pending preclinical validation through 2019 IDEAYA Development Plan IDE196 has demonstrated monotherapy activity, with confirmed durable responses Multiple strategies to drive further response, including monotherapy dose escalation for expansion phase (>300 mg BID) and evaluation of combinations (MEK) IDE196 has been generally well tolerated in Phase 1 treatment of 107 patients as of January 2019 Hypotension (dose related) was most common grade 3/4 adverse event and readily managed SAEs suspected to be related to IDE196 in BID cohort include hepatocellular injury/rash (n = 1) and hypotension (n = 1) GNAQ/GNA11 Non Hotspot CM, Colorectal, others PKC Fusions Esophageal, Lung, others Target to expand Basket Trial pending preclinical validation through 2019


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IDEAYA Synthetic Lethality Approach Synthetic Lethality Background Synthetic Lethality (SL) Platform & Capabilities Emerging Class of Precision Medicine Targets TSG = tumor suppressor gene Generating, validating and integrating vast synthetic lethality data sets: Discovery of novel precision medicine targets Biomarker discovery & validation 4 internal SL programs in research pipeline 176 DDR Drug Targets X 67 TSGs (Biomarker) ~12,000 pairwise gene KO’s per cell line Dual CRISPR SL Strategic Alliances Gene A = Biomarker; Gene B = Drug Target Pre-SL Inhibitor Treatment Post-SL Inhibitor Treatment Viable Cancer Cell Mutated Gene A Normal Cell Wild Type Gene A & B Enables indirect targeting of TSG or oncogene PARP-BRCA provides SL clinical proof of concept Emerging class of precision medicine targets Non-Viable Cancer Cell Mutated Gene A Inhibited Gene B Normal Cell Wild Type Gene A & Inhibited Gene B SL Discovery Dual CRISPR, CRISPR, siRNA Functional Validation Bioinformatics


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Today IDEAYA Synthetic Lethality Pipeline IDEAYA is advancing the next generation of biomarker-enabled Synthetic Lethality programs HRD = Homologous Recombination Deficiency, MSI = Microsatellite Instability MAT2A MTAP Deletion PARG BER, BRCA Pol-Theta HRD/BRCA Dual CRISPR SL Targets PARP HRD/BRCA Lynparza (AZ) Zejula (GSK/Tesaro) Rubraca (Clovis) Talzenna (Pfizer) Werner High-MSI


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MAT2A Inhibition is Synthetic Lethal with MTAP Deletion MTAP Deletion Prevalence ~15% of all Solid Tumors MTAP Deletion Prevalence MTAP-MAT2A SL Biology Data from The Cancer Genome Atlas data in cBioPortal Cancer Type N MTAP Deletions (%) Glioblastoma 592 41 Mesothelioma 87 32 Esophageal 95 28 Bladder 411 26 Pancreatic 184 22 Melanoma 448 16 Lung Cancer (NSCLC) 1053 15 Head and Neck 523 14 Sarcoma 255 10 Esophagogastric 514 10 Diffuse Glioma 513 9 Breast 1084 3 Ovarian 585 3 Adrenocortical 92 3 Thymic 123 3 Hepatocellular 369 3 Renal non-clear cell 348 2


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IDEAYA MAT2A Inhibitors Demonstrate Synthetic Lethality in Multiple MTAP-Null Cell Lines & PD Modulation of SAM Levels PD Modulation: SAM Levels in HCT116 Cell Line Synthetic Lethality in HCT116 Cell Line IDB361 IDEAYA data Structurally Enabled Lead Optimization IDB proprietary MAT2Ai co-crystal structure (1.33Å) (+10 high-resolution co-crystal structures) Lead Series Highly Potent In Vitro Lead series includes multiple compounds having nM potency across multiple MTAP-null cell lines Lead series shows > 10x ratio of IC50 cell potency in HCT116 wild-type vs MTAP -/- IDB361 ~50nM to ~300nM IC50 cell potency across HCT116 and endogenous MTAP-null cell lines, and ~ 15x ratio in HCT116 w.t. vs MTAP -/-


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IDEAYA MAT2A inhibitors demonstrate potent in vivo efficacy and PD modulation in HCT116 MTAP-/- xenograft model Lead series of IDEAYA MAT2A inhibitors Demonstrate ~60-100% tumor growth inhibition (TGI) at efficacious dose ranges of 3 to 30 mg/kg QD Comparable to higher TGI than Agios AGI-25696 at ≥10-fold lower doses (AGI-25696 dosed at 100, 300 mg/kg) CONFIDENTIAL IDEAYA MAT2A Compounds IDB361 shows in vivo tumor PD modulation following single 30 mg/kg dose S-adenosyl methionine (SAM) evaluated as in vivo tumor pharmacodynamic marker Tumor SAM decreases over time Plasma methionine increases over time * TGI variability of ~10 to ~20% observed in model HCT116 MTAP-/- Xenograft Model IDEAYA data


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IDB361 demonstrates favorable in vivo efficacy relative to AGI-25696 in HCT116 MTAP-null model In vivo efficacy in HCT116 MTAP-null model IDEAYA data IDB361 Start of dosing 3 mg/kg QD 79% TGI 30 mg/kg QD 101% TGI 30 mg/kg QD 0% TGI 300 mg/kg QD 70% TGI Start of dosing AGI-25696


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IDEAYA MAT2A Inhibitor Program Target Product Profile Attributes Agios MAT2A Published Compounds / Data IDEAYA Program Goals MAT2A Cell Potency 970 nM (AGI-24512) (1,3) More Potent In Vitro Compound MTAP-null vs MTAP-wt Cell Potency 8.5x (AGI-24512) (1,3) Broader Therapeutic Window In vivo efficacy in MTAP-null model (>50% TGI) 200 mg/kg QD (AG-270) (2,4) 300mg/kg QD (AGI-25696) (1,2,3) More Potent In Vivo Compound Brain Penetrance Exclusion criteria of CNS/brain metastasis (AG-270) +/- brain penetrance profile IDEAYA MAT2A Inhibitor IP Position: Composition of matter U.S. provisional patent application filed Structural Biology: +10 co-crystals of MAT2A lead series obtained Development Candidate: On-track to nominate in Q4 2019 Completed 7-day preclinical in vivo tolerability studies of several lead series compounds (1) IDEAYA internal data; (2) published data (3) HCT116 MTAP -/- cell lines or models; (4) HCT116 MTAP -/- model and endogenous MTAP -/- models


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Pol theta Drug Discovery Pol theta Synthetic Lethality Program Candidate Biomarkers: BRCA/HRD Pol theta Biomarker IDEAYA Pol theta inhibitor cell potency in DLD1 BRCA2 line In vivo evaluation of lead series ongoing Pol theta synthetic lethality with BRCA1/2 in HCCT116 cells Synthetic Lethal Screen with BRCA2 reveals Pol theta as a top hit Molecular Cell, March 2019, Elledge et al ATPase Polymerase Zahn KE. Nat Struct Mol Biol 2015, Ceccaldi R. Nature 2015 RAD51 binding sites RAD51 binding IDEAYA has <10nM biochemical potency Pol theta inhibitors against both ATPase and Polymerase Domains; x-ray co-crystal structure is guiding drug-design IDEAYA data IDEAYA data Cellular IC50 = <100 nM n=12


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Discovery: completed multiple hit discovery campaigns using a range of screening formats and compound libraries Screening: robust suite of biochemical and biophysical assays to identify WRN inhibitors and differentiate false positives Lead Series: identified a lead series with <100 nanomolar IC50 potency in a Werner helicase biochemical assay ~2000x potency improvement obtained through ongoing SAR Werner Drug Discovery Werner Biomarker Werner Synthetic Lethality Program Candidate Biomarkers: High-MSI Werner Syndrome Helicase is Required for the Survival of Cancer Cells with Microsatellite Instability IDEAYA Publication Cell Press, iScience, March 2019, Hager et al Project Drive: Werner is essential in MSI high cancer cell lines Project Drive IDEAYA data IDB-WRN1 ATPase IC50 = ~30 mM IDB-WRN2 ATPase IC50 = <100 nM


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IDEAYA’s Precision Medicine Oncology Pipeline Target Milestones through 2020 Indication Biomarker Preclinical IND Phase 1 Phase 2 Phase 3 Target Milestone through 2020 IDE196 PKC inhibitor MUM Mono GNAQ/11 Regulatory Path Solid Tumors GNAQ/11 Ph1/2 Interim Data MUM Combos GNAQ/11 Ph1/2 Clinical Combo NSCLC + EGFRi PKC-delta Clinical Combo Direct Targeting Indication Biomarker Preclinical IND Phase 1 Phase 2 Phase 3 Target Milestone through 2020 MAT2A Solid Tumors MTAP Phase 1 PARG Solid Tumors BER, BRCA 2nd SL Program IND Pol-theta Solid Tumors HRD/BRCA WRN Solid Tumors High-MSI Synthetic Lethality PKC = protein kinase C, MUM = metastatic uveal melanoma, NSCLC = non small cell lung cancer, HRD = homologous recombination deficiency, MSI = microsatellite instability Targeting 3 programs from IND stage to Ph 1/2 by end of 2020 = Target program milestone through 2020 Candidate Pipeline Research Pipeline