VistaGen Therapeutics to Present at the Cowen and Company 38th Annual Health Care Conference on March 14, 2018

On February 27, 2018 VistaGen Therapeutics, Inc. (NASDAQ: VTGN), a clinical-stage biopharmaceutical company developing new generation medicines for depression and other central nervous system (CNS) disorders, reported that Shawn Singh, Chief Executive Officer, will present at the Cowen and Company 38th Annual Health Care Conference in Boston at 10:00 a.m. Eastern Time on Wednesday, March 14, 2018 (Press release, VistaGen Therapeutics, FEB 27, 2018, View Source [SID1234524267]).

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A live audio webcast of the presentation will be accessible at the time of the presentation on the investor page of VistaGen’s website at ir.vistagen.com. A replay of the webcast will be archived on VistaGen’s website following the conference.

For more information about the conference, or to schedule a one-on-one meeting with VistaGen’s management, please contact your Cowen representative directly, or send an email to [email protected].

TESARO Announces Fourth-Quarter and Full-Year 2017 Operating Results

On February 27, 2018 TESARO, Inc. (NASDAQ:TSRO), an oncology-focused biopharmaceutical company, reported operating results for fourth-quarter and full-year 2017, and provided an update on the Company’s commercial products and development programs (Press release, TESARO, FEB 27, 2018, View Source [SID1234524265]).

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"Following its April 2017 introduction in the U.S., ZEJULA quickly became the market-leading PARP inhibitor for women with ovarian cancer, and in the second half of 2017, six out of ten ovarian cancer patients who were treated with a PARP inhibitor received ZEJULA," said Lonnie Moulder, CEO of TESARO. "Additionally, we are expanding the ZEJULA franchise with our ongoing launches in Europe and a focused clinical development program that utilizes both monotherapy and combination approaches to potentially further lengthen the time women with ovarian cancer are free from disease progression. 2018 will be an exciting year for our immuno-oncology portfolio as we anticipate multiple data readouts, including response data for TSR-042, our anti-PD-1 antibody, in patients with lung cancer and MSI-high tumors, initial results from the combination of TSR-022, our anti-TIM-3 antibody and TSR-042, and initial data from TSR-033, our anti-LAG-3 antibody."

Recent Business Highlights

ZEJULA is the most utilized PARP inhibitor among patients with ovarian cancer in the U.S., with more than 4,000 patients treated in 2017.
Following European Commission (E.C.) approval in November 2017, ZEJULA now has marketing authorization in 32 countries and is the first and only PARP inhibitor authorized for marketing in Europe for the maintenance treatment of patients with recurrent ovarian cancer, regardless of BRCA mutation status. ZEJULA has been launched in Germany and is available in the UK for private pay patients.
TESARO has applied to include ZEJULA in the UK’s Cancer Drug Fund (CDF) and will continue to work closely with the National Institute for Health and Care Excellence (NICE) and the National Health Service (NHS) England on the ZEJULA CDF submission to make this important medicine available as quickly as possible for a broad population of women in the UK.
The unit demand for VARUBI oral tablets increased 43% for Q4 2017 vs. Q4 2016, as the brand continues to penetrate the U.S. oral NK-1 market.
In January 2018, the package insert for VARUBI IV was updated to include mention of new adverse events, including anaphylaxis, anaphylactic shock and other serious hypersensitivity reactions, which were reported in the post-marketing setting following its introduction in late November 2017. Given these dynamics, TESARO believes the market opportunity is more limited than previously anticipated, and will suspend distribution of VARUBI IV while continuing to support VARUBI oral tablets. The Company is considering strategic alternatives for the product, including out-licensing, and will re-direct Company resources in support of ZEJULA.
Clinical trials of niraparib are ongoing to evaluate safety and efficacy in monotherapy and combination therapy for patients with ovarian, breast, and lung cancer:
PRIMA: Phase 3 trial for patients with first-line ovarian cancer will complete enrollment in Q2 2018
QUADRA: Registrational trial for patients with ovarian cancer who have received three or more prior lines of chemotherapy; top-line data will be available in Q1 and an abstract has been submitted to ASCO (Free ASCO Whitepaper)
TOPACIO: Phase 2 trial in combination with anti-PD-1 for patients with platinum-resistant ovarian cancer (data to be presented at SGO) or triple negative breast cancer (abstracts submitted to ASCO (Free ASCO Whitepaper))
AVANOVA: Phase 2 trial in combination with bevacizumab for patients with recurrent ovarian cancer; data are anticipated to be available in 2H 2018 to support an abstract submission
Niraparib tablet: A study is ongoing to advance development of a tablet formulation of niraparib
OVARIO: Phase 2 assessing niraparib in combination with bevacizumab for patients with newly diagnosed ovarian cancer
Janssen continues to advance development of niraparib in prostate cancer in monotherapy and combination therapy.
Zai Lab is advancing the development of niraparib in patients with ovarian, breast and lung cancer in China, and Takeda has initiated development of niraparib in Japan.
TSR-042 is in a registration trial (GARNET) for MSI-high tumors.
An abstract has been submitted to AACR (Free AACR Whitepaper) that includes data from patients with lung and metastatic microsatellite instability-high (MSI-H) cancers
Data are being generated to support the use of TSR-042 in registration studies in multiple tumor types, including lung, breast and ovarian cancer
Clinical trials are ongoing to evaluate TSR-022 (anti-TIM-3 antibody) and TSR-033 (anti-LAG-3 antibody) in combination with TSR-042.
AMBER: Phase 1 trial of TSR-022 in combination with TSR-042 is enrolling three tumor specific cohorts
CITRINO: Phase 1 dose-escalation trial of TSR-033
A retrospective, exploratory analysis of the NOVA trial, presented as part of a Satellite Symposium at the International Meeting of the European Society of Gynaecological Oncology (ESGO) in November 2017 in Austria, identified body weight and baseline platelet counts as the two most significant predictors for grade 3/4 thrombocytopenia.
In November, preliminary Phase 1 data presented at the 2017 Annual Meeting of the Society for Immunotherapy of Cancer (SITC) (Free SITC Whitepaper) demonstrated TSR-022 is well tolerated across multiple dose levels, with a safety and efficacy profile expected for checkpoint inhibitors.
TESARO entered into a definitive term loan agreement for up to $500 million with Pharmakon Advisors, LP in November 2017, and drew $300 million in December 2017.

2017 Financial Results

TESARO reported total revenue for the fourth quarter of 2017 of $48.0 million, compared to $4.9 million for the same period in 2016. Revenue growth was primarily driven by the launch of ZEJULA in the U.S. in April 2017. Net loss for the fourth quarter of 2017 totaled $182.1 million, or ($3.35) per share, compared to $136.2 million, or ($2.59) per share for the same period in 2016.

Full year 2017 total revenues were $223.3 million, compared to $58.0 million for 2016. Revenue growth was primarily driven by the launch of ZEJULA in the U.S. and the upfront payment received as part of the license agreement with Takeda in the third quarter. Net loss for 2017 totaled $496.1 million, or ($9.17) per share, compared to a net loss of $374.2 million, or ($7.85) per share, for 2016.
(in thousands, except per share amounts) Three Months Ended
December 31, Twelve Months Ended
December 31,
2016
2017
2016
2017

Product revenue, net
ZEJULA - $ 43,436 - $ 108,756
VARUBI/VARUBY $ 2,330 $ 4,541 $ 5,174 $ 11,944
Total product revenue, net $ 2,330 $ 47,977 $ 5,174 $ 120,700
License, collaboration, and other revenue $ 2,591 $ 46 $ 52,844 $ 102,626
Total revenues $ 4,921 $ 48,023 $ 58,018 $ 223,326

Net loss $ (136,240 ) $ (182,065 ) $ (374,224 ) $ (496,126 )

Net loss per share, basic and diluted $ (2.59 ) $ (3.35 ) $ (7.85 ) $ (9.17 )

Product Revenue

Net product sales totaled $48.0 million for the fourth quarter of 2017, and included ZEJULA sales of $43.4 million and VARUBI/VARUBY sales of $4.5 million. This compares to net product sales of $2.3 million for the fourth quarter of 2016. The increase was primarily driven by the launch of ZEJULA in the U.S. in April 2017.

Net product sales for 2017 totaled $120.7 million and included ZEJULA sales of $108.8 million and VARUBI/Y sales of $11.9 million. For 2016, net product sales were $5.2 million.

Other Revenue

License, collaboration and other revenues for 2017 totaled $102.6 million and included the $100.0 million up-front payment received as part of the license agreement with Takeda in the third quarter. For 2016, license, collaboration, and other revenues were $52.8 million and included up-front payments received as part of the license agreements with Zai Lab and Janssen.

Operating Expenses
(in thousands) Three Months Ended
December 31, Twelve Months Ended
December 31,
2016 2017 2016 2017
Cost of sales – product $ 512 $ 30,857 $ 1,203 $ 41,137
Cost of sales – intangible asset amortization $ 464 $ 1,435 $ 1,855 $ 6,158
Research and development (R&D) $ 71,514 $ 97,832 $ 235,144 $ 308,742
Selling, general and administrative (SG&A) $ 54,526 $ 90,569 $ 158,578 $ 336,808
Acquired in-process R&D $ 9,000 $ 3,000 $ 18,940 $ 10,000

For the fourth quarter of 2017, compared to the same period in 2016:

Cost of sales associated with product sales increased to $30.9 million compared to $0.5 million, primarily due to the commercial launch of ZEJULA in the U.S., and inventory write-downs and other charges of $20.3 million related to revised expectations for future VARUBI IV revenue.

Cost of sales associated with intangible asset amortization increased to $1.4 million compared to $0.5 million primarily due to the amortization of milestones recorded upon FDA and European Commission approval of ZEJULA and first commercial sale of VARUBY in Europe.

R&D expenses increased to $97.8 million compared to $71.5 million primarily due to higher manufacturing costs associated with TSR-042 and TSR-022, the expansion of the niraparib, TSR-042 and TSR-022 clinical development programs, and increased headcount.

SG&A expenses increased to $90.6 million compared to $54.5 million primarily due to increased sales and marketing headcount, activities in support of the launches of ZEJULA and VARUBI/Y in the U.S. and Europe, and higher professional service fees.

Acquired in-process R&D expenses totaled $3.0 million compared to $9.0 million and included a milestone payment related to our immuno-oncology portfolio.

Operating expenses include total non-cash, stock-based compensation expense of $23.5 million, compared to $14.4 million.

For full-year 2017, compared to 2016:

Cost of sales associated with product sales increased to $41.1 million compared to $1.2 million primarily due to the commercial launch of ZEJULA in the U.S., and inventory write-downs and other charges related to revised expectations for future VARUBI IV revenue.

Cost of sales associated with intangible asset amortization increased to $6.2 million compared to $1.9 million primarily due to the amortization of milestones recorded upon FDA and E.C. approvals of ZEJULA and first commercial sale of VARUBY in Europe.

R&D expenses increased to $308.7 million compared to $235.1 million due to increased headcount, higher manufacturing costs associated with TSR-042 and TSR-022, the expansion of the niraparib, TSR-042 and TSR-022 clinical development programs, and the advancement of our earlier-stage immuno-oncology portfolio.

SG&A expenses increased to $336.8 million compared to $158.6 million due to increased sales and marketing headcount, activities in support of the launches of ZEJULA and VARUBI/Y in the U.S. and Europe, and higher professional service fees.

Acquired in-process R&D expenses totaled $10.0 million and included milestone payments related to our immuno-oncology portfolio, compared to $18.9 million, which included milestone payments related to ZEJULA and our immuno-oncology portfolio.

Operating expenses include total non-cash, stock-based compensation expense of $90.4 million compared to $48.5 million.

Cash and Cash Equivalents

As of December 31, 2017, TESARO had approximately $643.1 million in cash and cash equivalents and approximately 54.5 million outstanding shares of common stock.

2018 Financial Guidance

In 2018, TESARO expects:
Total Revenue, net, worldwide (FY) $310 to $345 million
ZEJULA (FY) $255 to $275 million
ZEJULA (Q1) $45 to $50 million
Other revenue, including licensing and VARUBI/Y oral (FY) $55 to $70 million
Interest expense (FY) $50 to $60 million, including non-cash interest expense of $14 million

In addition, TESARO anticipates its cash and cash equivalents balance to decline by $150 million during the first quarter. Quarterly declines in cash and cash equivalents are expected to moderate over the course of 2018, and in the fourth quarter of 2018, the decline in cash and cash equivalents balance is expected to be approximately $75 million. The Company plans to draw $200 million in 2018 from its available term loan facility. TESARO anticipates year-end 2018 cash and cash equivalents to be approximately $400 million.

Key Development Milestones

TESARO intends to achieve the following development milestones during 2018:

Ovarian Cancer Franchise:

Complete PRIMA enrollment in Q2 2018
Report TOPACIO platinum-resistant ovarian cancer data in 1H 2018
Initiate FIRST, a Phase 3 clinical trial of niraparib in combination with TSR-042 in first-line ovarian cancer, in 1H 2018
Report QUADRA data in 1H 2018 and submit sNDA in 2H 2018

Breast Cancer:

Report TOPACIO triple negative breast cancer data in 1H 2018
Publish BRAVO data in 2H 2018
Define registration path for niraparib in breast cancer in mid-2018

Lung Cancer:

Report initial data from lung cancer cohort of the GARNET trial of TSR-042 in NSCLC in 1H 2018
Initial data from Phase 2 JASPER study of niraparib in combination with an anti-PD-1 inhibitor to be available in 2H 2018

Prostate Cancer:

Janssen anticipates advancing trials of niraparib in prostate cancer to support U.S. and EU regulatory filings in 2019

Immuno-oncology Portfolio:

Complete enrollment in the MSI-high cohort of the GARNET trial to support a BLA submission to FDA in 2019
Report initial data for the AMBER trial of TSR-022 in combination with TSR-042 in 2H 2018 and define development strategy
Initiate assessment of the combination of TSR-033 plus TSR-042 in the CITRINO trial in Q2 2018 and report Phase 1 monotherapy dose-escalation data for TSR-033 in 2H 2018
Advance IND-enabling studies of PD-1/LAG-3 bi-specific (TSR-075)

Today’s Conference Call and Webcast
TESARO will host a conference call to discuss fourth quarter and full-year operating results and provide an update on its commercial products and development programs today at 4:15 P.M. Eastern time. The accompanying slide presentation and live webcast of the conference call can be accessed by visiting the TESARO website at www.tesarobio.com. The call can be accessed by dialing (877) 853-5334 (U.S. and Canada) or (970) 315-0307 (international). A replay of the webcast will be archived on the Company’s website for 30 days following the call.

About ZEJULA (Niraparib)
ZEJULA (niraparib) is a poly (ADP-ribose) polymerase (PARP) inhibitor indicated for the maintenance treatment of adult patients with recurrent epithelial ovarian, fallopian tube, or primary peritoneal cancer who are in a complete or partial response to platinum-based chemotherapy. In preclinical studies, ZEJULA concentrates in the tumor relative to plasma, delivering greater than 90% durable inhibition of PARP 1/2 and a persistent antitumor effect. Myelodysplastic Syndrome/Acute Myeloid Leukemia (MDS/AML), including some fatal cases, was reported in patients treated with ZEJULA. Discontinue ZEJULA if MDS/AML is confirmed. Hematologic adverse reactions (thrombocytopenia, anemia and neutropenia), as well as cardiovascular effects (hypertension and hypertensive crisis) have been reported in patients treated with ZEJULA. Monitor complete blood counts to detect hematologic adverse reactions, as well as to detect cardiovascular disorders, during treatment. ZEJULA can cause fetal harm and females of reproductive potential should use effective contraception. Please see full prescribing information, including additional important safety information, available at www.zejula.com.

Supernus Announces Record Full Year 2017 Financial Results, Exceeding Operating Earnings Guidance

On February 27, 2018 Supernus Pharmaceuticals, Inc. (NASDAQ:SUPN), a specialty pharmaceutical company focused on developing and commercializing products for the treatment of central nervous system (CNS) diseases, reported record financial results for the fourth quarter and full year 2017 and associated Company developments (Press release, Supernus, FEB 27, 2018, View Source [SID1234524264]).

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Commercial Update

Fourth quarter 2017 product prescriptions for Trokendi XR and Oxtellar XR, as reported by IQVIA (formerly IMS), totaled 198,715, a 47.3% increase over the fourth quarter of 2016. Full year 2017 product prescriptions for Trokendi XR and Oxtellar XR, as reported by IQVIA, totaled 672,709, a 33.8% increase over full year 2016.

Prescriptions

Q4 2017 Q4 2016 Change % FY 2017 FY 2016 Change %
Trokendi XR 162,208 101,869 59.2% 533,541 378,584 40.9%
Oxtellar XR 36,507 33,081 10.4% 139,168 124,270 12.0%
Total 198,715 134,950 47.3% 672,709 502,854 33.8%

Source: IQVIA

Net product sales for the fourth quarter of 2017 were $86.3 million, a 41.2% increase over $61.1 million in the same period in the prior year. Net product sales for full year 2017 were $294.1 million, a 40.0% increase over $210.1 million in 2016.

Net Product Sales ($millions)

Q4 2017 Q4 2016 Change % FY 2017 FY 2016 Change %
Trokendi XR $69.1 $46.7 48.0% $226.5 $158.4 43.0%
Oxtellar XR $17.2 $14.4 19.4% $67.6 $51.7 30.8%
Total $86.3 $61.1 41.2% $294.1 $210.1 40.0%

"The strong financial results achieved in the fourth quarter and full year of 2017 reflect the successful launch of Trokendi XR in migraine, as well as continued double digit growth by Oxtellar XR," said Jack Khattar, President and CEO of Supernus Pharmaceuticals. "These results substantiate the value our products provide to patients and the impressive execution of our commercial organization."

Progress of Product Pipeline

Overall enrollment in the four Phase III trials for SPN-812, a novel non-stimulant for the treatment of ADHD, is approximately 38% complete. The program consists of four three-arm, placebo-controlled trials: two pediatric trials and two adolescent trials. The Company expects to continue enrollment through mid-2018 and to have data from this Phase III program available by the first quarter of 2019.

Enrollment continues in both Phase III trials (P301 and P302) for SPN-810, currently in development for Impulsive Aggression in pediatric patients who have ADHD. Enrollment in P301 and P302 is approximately 80% and 65% complete, respectively, and is expected to continue through mid-2018, with data from the trials anticipated by the first quarter of 2019. In addition, a Phase III trial for SPN-810 treating Impulsive Aggression in adolescents who have ADHD is anticipated to start mid-2018. This adolescent trial is not expected to materially affect the overall timing of the regulatory submission process for SPN-810.

Regarding Oxtellar XR, the investigator-sponsored trial in bipolar disorder is expected to complete enrollment by year end 2018.

"Our strategy in 2018 is to advance SPN-810 and SPN-812 through Phase III clinical development, moving us closer to our goal of delivering from our current pipeline two novel products, both addressing billion-dollar market opportunities," said Jack Khattar. "In addition, we remain focused on progressing Oxtellar XR as a potential therapy for bipolar disorder, another clinically important and significant commercial opportunity for Supernus."

Operating Expenses

Research and development expenses in the fourth quarter of 2017 were $16.2 million, as compared to $13.3 million in the same quarter last year, and, for the full year 2017, $49.6 million, as compared to $42.8 million for 2016. These increases were due primarily to the initiation of the four Phase III clinical trials for SPN-812 in the second half of 2017.

Selling, general and administrative expenses in the fourth quarter of 2017 were $33.8 million, as compared to $29.1 million in the same quarter last year, and, for the full year 2017, $137.9 million as compared to $106.0 million in 2016. The increases for both periods were due primarily to the expansion of the salesforce by 40 salespeople, which was fully deployed in the fourth quarter of 2017, the development and production of promotional materials and marketing programs associated with the launch of the migraine indication for Trokendi XR, and an increase in share-based compensation expense.

Operating Earnings and Earnings Per Share

Operating earnings in the fourth quarter of 2017 were $34.3 million, a 110.4% increase over $16.3 million in the same period the prior year. Operating earnings in full year 2017 were $99.5 million, an 83.6% increase over $54.2 million in 2016. The improvement in operating earnings in both periods was primarily due to increased net product sales.

Net earnings (GAAP) in the fourth quarter of 2017 was $13.7 million, as compared to $14.3 million in the same period last year. Net earnings (GAAP) were $57.3 million in 2017, as compared to $91.2 million in 2016. The decrease was due primarily to the increase in research and development and selling, general and administrative spending, the increase in income tax expense as a result of the elimination of the valuation allowance against deferred tax assets in 2016, and the impact of the Tax Cuts and Jobs Act (Tax Act) in 2017.

Full year 2017 net earnings would have increased by 90.3% to $67.0 million, compared to $35.2 million in 2016, if net earnings were adjusted to eliminate the one-time favorable impact of releasing the valuation allowance on deferred tax assets in 2016, and eliminating the one-time unfavorable impact related to the passage of the Tax Act in 2017. (See reconciliation of GAAP net earnings to non-GAAP net earnings in the table at the end of this release).

Diluted earnings per share (GAAP) were $1.08 in 2017, compared to $1.76 in 2016. Adjusting for the aforementioned tax effects in 2016 and 2017, diluted earnings per share in 2017 would have increased by 85.3% to $1.26, compared to $0.68 in 2016. (See reconciliation of GAAP diluted EPS to non-GAAP diluted EPS in the table at the end of this release).

Weighted-average diluted common shares outstanding were approximately 53.5 million and 53.3 million in the fourth quarter and full year of 2017, respectively, as compared to approximately 52.0 million and 51.7 million in each of the respective prior year periods.

As of December 31, 2017, the Company had $273.7 million in cash, cash equivalents, marketable securities, and long term marketable securities, a $108.2 million increase over $165.5 million at December 31, 2016.

Financial Guidance

For full year 2018, the Company estimates net product sales, research and development expenses, operating earnings, and an effective tax rate as set forth below:

Net product sales in the range of $375 million to $400 million.
Research and development expenses of approximately $80 million.
Operating earnings in the range of $125 million to $135 million, including approximately $7 million of licensing and non-cash royalty revenue.
Effective tax rate of approximately 23% to 25%.

Conference Call Details

The Company will hold a conference call hosted by Jack Khattar, President and Chief Executive Officer, and Greg Patrick, Vice President and Chief Financial Officer, to discuss these results at 9:00 a.m. Eastern Time, on Wednesday, February 28, 2018. An accompanying webcast also will be provided.

Please refer to the information below for conference call dial-in information and webcast registration. Callers should dial in approximately 10 minutes prior to the start of the call.

Conference dial-in: (877) 288-1043
International dial-in: (970) 315-0267
Conference ID: 9385269
Conference Call Name: Supernus Pharmaceuticals Fourth Quarter and Full Year 2017 Earnings Conference Call

Following the live call, a replay will be available on the Company’s website, www.supernus.com, under "Investor Relations".

Sierra Oncology Significantly Expands Clinical Development Program

On February 27, 2018 Sierra Oncology, Inc. (Nasdaq: SRRA), a clinical stage drug development company focused on advancing next generation DNA Damage Response (DDR) therapeutics for the treatment of patients with cancer, reported significant progress in the advancement of its strategic pipeline of drug assets (Press release, Sierra Oncology, FEB 27, 2018, View Source [SID1234524263]).

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The company announced noteworthy progress in the Dose Escalation Phase 1 portions for both of its ongoing Phase 1/2 clinical trials evaluating its potential best-in-class Chk1 inhibitor, SRA737. The company announced expansion of the efficacy-oriented Phase 2 portions of both trials, which will now target aggregate enrollment of approximately 200 patients across ten cancer indications. The company also announced it is planning to initiate a Phase 1b/2 clinical trial in the fourth quarter of 2018 that will evaluate SRA737 in combination with ZEJULA (niraparib) for the treatment of metastatic castration-resistant prostate cancer (mCRPC).

In addition, the company announced it is planning to submit an Investigational New Drug (IND) for its Cdc7 inhibitor, SRA141, in the second half of 2018 in order to initiate a Phase 1/2 clinical trial, focused initially on the treatment of colorectal cancer.

Sierra is hosting a Program Update event today at 10:00 am ET in New York where it will provide an update on the progress of its portfolio of assets, with specific reference to its clinical development program for SRA737. The Sierra management team will be joined by Dr. Udai Banerji, Chief Investigator for the company’s ongoing SRA737 Phase 1/2 clinical trials, and Dr. Alan D’Andrea, a member of Sierra’s DDR Advisory Committee. A live webcast of the event will be available at www.sierraoncology.com.

"We are pleased to report encouraging progress in the advancement of both of our next generation DDR assets. In particular, SRA737 has demonstrated an emerging preclinical and clinical profile which appears competitively differentiated in comparison to other clinical stage Chk1 inhibitors, which gives us confidence to significantly expand its development program both as monotherapy and in a variety of combination settings," said Dr. Nick Glover, President and CEO of Sierra Oncology. "In support of this expansion, we are adding further clinical centers in 2018, with the goal of reporting preliminary clinical data in the fourth quarter of 2018."

"The safety profile for SRA737 has been highly promising, both as monotherapy and in combination with low dose gemcitabine. These observations are entirely consistent with the asset’s mechanism-of-action and preclinical toxicology data, supporting a broad potential therapeutic window for SRA737," Dr. Barbara Klencke, Chief Development Officer, Sierra Oncology. "The Phase 2 efficacy-oriented portion of the monotherapy trial is also underway and focuses on cancers that are driven by genetic mutations that result in high replication stress, which have been associated with synthetic lethality to Chk1 inhibition."

"Given our continued understanding of Chk1 biology, we are also adding a CCNE1-driven ovarian cancer cohort to the monotherapy study," added Dr. Mark Kowalski, Chief Medical Officer, Sierra Oncology. "Women with tumors harboring this genetic profile have limited therapeutic options; they typically become resistant to platinum-based chemotherapy and do not commonly harbor mutations in BRCA1/2 genes. However, given the key role of CCNE1 in driving replication stress, SRA737 may be effective in these tumor types. We are encouraged by preclinical data we have generated that reinforce this potential utility."

SRA737-01 Phase 1/2 Monotherapy Trial: Trial Update and Expansion Plans

This trial consists of two phases, a safety-oriented Dose Escalation Phase 1 in unselected ‘all-comer’ patients and an efficacy-oriented Cohort Expansion Phase 2 in patients with genetically-defined tumors that harbor genomic alterations linked to increased replication stress and hypothesized to be more sensitive to Chk1 inhibition. The company will provide an update on the Dose Escalation Phase 1 portion today.

Dose Escalation has proceeded through multiple dose levels and SRA737 has been well-tolerated from 20 mg QD to 1000 mg QD as monotherapy.
The majority of reported adverse events (AEs) have been Grade 1 or Grade 2 in severity.
Most commonly observed AEs (≥ 20%; all reported causalities) were fatigue and GI events (diarrhea, nausea, vomiting).
Grade 3 adverse events have included neutropenia (2 patients), nausea (2 patients), and diarrhea (1 patient).
Serious Adverse Events (at least possibly related by Investigator assessment) included Grade 3 neutropenia (probably related; one patient) and Grade 3 heart failure/cardiomyopathy (possibly related) in a single patient with rapid disease progression.
Two Dose Limiting Toxicities (DLTs) were reported at 1300 mg QD (inability to receive 75% of the planned SRA737 dose due to GI intolerability).
No evidence of emergent or cumulative toxicity and/or declining tolerability was observed with up to 8 cycles of drug administered, supportive of potential for extended dosing.
Dose escalation is now complete; 1000 mg QD & 500 mg BID cohorts are currently being compared in order to optimize the SRA737 dose regimen.

The Cohort Expansion Phase 2 portion of the trial is enrolling genetically-defined patients into indication specific cohorts, including advanced or metastatic:

castration-resistant prostate cancer (mCRPC);
high grade serous ovarian cancer (HGSOC);
non-small cell lung cancer (NSCLC);
head and neck squamous cell carcinoma (HNSCC) or squamous cell carcinoma of the anus (SCCA); and
colorectal cancer (mCRC).

The company announced today the addition of a sixth indication specific cohort, CCNE1-driven HGSOC. During the Program Update, the company will present preclinical data demonstrating that SRA737 has significant anti-tumor activity and a profound survival benefit in CCNE1-driven HGSOC preclinical models.

Sierra is also expanding the number of sites recruiting patients into the trial from three active sites (as of the third quarter of 2017) to a planned fifteen active sites at leading centers across the United Kingdom, to support its increased enrollment to 20 patients in each of the six genetically-defined cohorts. In total, 120 patients are expected to be enrolled into the Phase 2 portion of the trial. The company reported that 20 patients had been enrolled into this portion of the study to date and that enrollment was in line with the anticipated prevalence of the gene mutations targeted. The Cohort Expansion Phase 2 portion of the study is expected to report preliminary clinical data in the fourth quarter of 2018.

SRA737-02 Phase 1/2 Low Dose Gemcitabine Combination Trial: Trial Update and Expansion Plans

This clinical trial consists of three phases:

1. A Standard Dose Triplet Combo Dose Escalation Phase 1 evaluating a combination of SRA737 with standard dose gemcitabine and cisplatin in patients with solid tumors.

The company reported that this phase has concluded.

2. A Low Dose Gemcitabine (LDG) Combo Dose Escalation Phase 1 evaluating safety in ‘all-comer’ non-selected patients, where cohorts of 3 to 6 patients are being administered escalating doses of SRA737 on an intermittent schedule in addition to low dose gemcitabine (5-10% of the standard gemcitabine dose) until the combination maximum tolerated dose (MTD) is reached.

The company reported that significant progress has been made in the LDG Combo Dose Escalation Phase 1, and the combination regimen has been very well-tolerated.

The majority of reported AEs have been Grade 1 or Grade 2 in severity.
Most commonly observed AEs (≥ 20%; all reported causalities) were diarrhea, anemia, thrombocytopenia, fatigue, influenza-like illness, nausea, neutropenia and vomiting.
Only one Grade 3 treatment related AE (neutropenia) was observed, at 40 mg SRA737/300 mg/m2 gemcitabine.
Related SAEs included a Grade 1 fever (possibly related) and a Grade 2 DVT (possibly related).
No evidence of emergent or cumulative toxicity and/or declining tolerability was observed with up to 5 cycles of drug administered, supportive of potential for extended dosing.
No DLTs have been reported in any LDG dose escalation cohort and dose escalation continues.

3. A Low Dose Gemcitabine Combo Cohort Expansion Phase 2, that will explore the preliminary efficacy of SRA737 plus low dose gemcitabine in prospectively enrolled genetically-defined patients with tumors that harbor genomic alterations hypothesized to confer sensitivity to Chk1 inhibition via synthetic lethality.

The company reported that this phase is anticipated to commence in the second quarter of 2018 and has been expanded to target enrollment of 80 genetically-selected patients across four indications, including advanced or metastatic:

urothelial carcinoma;
small cell lung cancer (SCLC);
soft tissue sarcoma;
cervical/anogenital cancer.

An update on the study is expected to be provided in the fourth quarter of 2018.

SRA737 PARPi Combination Program Initiation and Supply Agreement
The company also announced execution of a supply agreement with Janssen Research & Development, LLC for the supply of TESARO’s ZEJULA (niraparib), an orally administered poly ADP-ribose polymerase (PARP) inhibitor, facilitating the initiation of a combination trial of SRA737 with niraparib in patients with prostate cancer, expected in the fourth quarter of 2018.

The trial is to be led by Professor Johann de Bono, Regius Professor of Cancer Research, Head of the Division of Clinical Studies and Professor in Experimental Cancer Medicine at The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust.

During the Program Update today, the company will present preclinical data supporting SRA737’s synergistic activity in combination with PARPi in a model of PARPi acquired resistance. Additional preclinical data supporting this combination will be presented at the American Association of Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting 2018.

SRA737 Combination with Immuno-Oncology
During the Program Update today, the company will also present preclinical data providing evidence of biological synergy between SRA737 and immune checkpoint blockade. Sierra is currently designing a clinical study for this combination, which potentially could be submitted to regulatory authorities in the fourth quarter of 2018.

SRA141 Program Update
The company continues to advance SRA141, its potent, selective, orally bioavailable small molecule inhibitor of Cell division cycle 7 kinase (Cdc7), an emerging DDR target with exciting potential in cancer. During the Program Update today, the company will present supportive preclinical research for SRA141 demonstrating noteworthy anti-cancer activity in oncology models, generated in preparation for an IND submission expected in the second half of 2018, with an initial clinical focus on the treatment of colorectal cancer.

Sierra Oncology Reports 2017 Year End Results

On February 27, 2018 Sierra Oncology, Inc. (Nasdaq: SRRA), a clinical stage drug development company focused on advancing next generation DNA Damage Response (DDR) therapeutics for the treatment of patients with cancer, today reported its financial and operational results for the year ended December 31, 2017 (Press release, Sierra Oncology, FEB 27, 2018, View Source [SID1234524262]).

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"During 2017, we made substantial progress advancing our portfolio of promising next generation DDR therapeutics. In particular, emerging preclinical and clinical data continue to reinforce the fundamental biological role of Chk1 in regulating cancer-driven replication stress associated with genomic instability, a hallmark of cancer with potentially broad therapeutic relevance. Accordingly, during the year we significantly advanced and expanded the development program for our potential best-in-class Chk1 inhibitor, SRA737, which will now be evaluated across ten cancer indications in two ongoing Phase 1/2 trials, targeting aggregate enrollment of approximately 200 genetically-selected patients. We look forward to reporting preliminary data from these trials, expected in the fourth quarter of 2018," said Dr. Nick Glover, President and CEO of Sierra Oncology. "We also announced, subsequent to the end of the year, the advancement of a promising third development opportunity for SRA737 with the signing of an agreement with Janssen to supply us with ZEJULA (niraparib). This agreement facilitates the advancement of a novel Chk1i/PARPi combination trial in prostate cancer that we plan to initiate in the fourth quarter of 2018, which will be led by Professor Johann de Bono, Regius Professor of Cancer Research at The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust.

2017 Highlights:

In January 2017, we relaunched as Sierra Oncology with a stated focus on developing oncology drugs targeting the DNA Damage Response (DDR) network.
Also in January, we successfully transferred sponsorship of the two ongoing Phase 1/2 clinical trials for our lead DDR drug candidate, SRA737, from the Cancer Research UK Centre for Drug Development, enabling us to submit protocol amendments aimed at enhancing these studies to include cohort expansions of prospectively selected patients with tumors identified to have genetic aberrations hypothesized to confer sensitivity to Chk1 inhibition via synthetic lethality.
In February, we raised net proceeds of US$27.4 million to further advance our programs.
In April, our collaborator, the Institute of Cancer Research (ICR), London, UK, reported preclinical results for SRA737 in a poster at the American Association of Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting, supporting our genetically-driven clinical development strategy for SRA737.
In May, we were issued a patent providing SRA737 with protection in the United States to 2033, before any potential patent term extensions.
In June, having received clearance for our protocol amendments, we presented these innovative SRA737 Phase 1 clinical designs in two Trials in Progress posters at the 2017 American Society of Clinical Oncology (ASCO) (Free ASCO Whitepaper) Annual Meeting. We concurrently reported encouraging initial progress from the two ongoing trials; SRA737 was well-tolerated and a maximum tolerated dose (MTD) had not yet been reached in the dose escalation phase of the monotherapy trial.
In August, we established a DDR Advisory Committee composed of leading experts in DDR biology, chemistry and medicine. We also held two Key Opinion Leader (KOL) events, in September and October 2017, which featured members from our Advisory Committee who shared their insights on emerging DDR biology and the potential of Chk1 inhibition in oncology, providing further support for our programs.
In October, we presented a poster at the AACR (Free AACR Whitepaper)-NCI-EORTC AACR-NCI-EORTC (Free AACR-NCI-EORTC Whitepaper) International Conference on Molecular Targets and Cancer Therapeutics (EORTC-NCI-AACR) (Free ASGCT Whitepaper) (Free EORTC-NCI-AACR Whitepaper), reporting on preclinical data demonstrating that sub-therapeutic, non-cytotoxic doses of gemcitabine induce replication stress and hence potentiate the anti-tumor activity of SRA737. These data support the design of our ongoing Phase 1/2 clinical trial which is specifically evaluating this combination.
We appointed Dr. Andrew Allen to our Board of Directors, effective October 23, 2017. Dr. Allen is the co-founder of Gritstone Oncology and was the co-founder of Clovis Oncology (Nasdaq: CLVS).

Subsequent Events:
On February 27, 2018, we provided an update on the SRA737 and SRA141 development programs:

For the SRA737 Monotherapy Phase 1/2 trial, we reported that the Dose Escalation Phase 1 portion of the study was in the final stages of optimizing the SRA737 dose regimen and the Cohort Expansion Phase 2 portion of the study was ongoing. The Cohort Expansion Phase 2 portion of the study was being expanded to include more patients, including a sixth indication (CCNE1-driven ovarian cancer), and would in aggregate target enrollment of 120 patients across six genetically-defined cohorts. We also reported that we plan to expand the number of sites recruiting patients into the trial from three active sites (as of the third quarter of 2017) to fifteen leading centers across the United Kingdom. The Cohort Expansion Phase 2 portion of the study is expected to report preliminary data in the fourth quarter of 2018.
For the SRA737 Low-Dose Gemcitabine Phase 1/2 Combination trial, we reported that the Standard-Dose Triplet Combo Dose Escalation Phase 1 was complete and that the Low-Dose Gemcitabine Combo Dose Escalation Phase 1 had made significant progress. In addition, the Low-Dose Gemcitabine Combo Cohort Expansion Phase 2 was anticipated to commence in the second quarter of 2018 and would be expanded to target enrollment of 80 genetically-selected patients across four indications. An update on the study is expected to be reported in the fourth quarter of 2018.
We reported signing a supply agreement with Janssen Research & Development, LLC where they will supply TESARO’s ZEJULA (niraparib), an orally administered poly ADP-ribose polymerase (PARP) inhibitor, facilitating the initiation of a combination trial of niraparib with SRA737 in patients with prostate cancer in the fourth quarter of 2018. The trial is to be led by Professor Johann de Bono, Regius Professor of Cancer Research, Head of the Division of Clinical Studies and Professor in Experimental Cancer Medicine at The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust.
We presented emerging evidence of biological synergy between immune checkpoint blockade and Chk1 inhibition. Sierra is currently designing a clinical study for this combination, which potentially could be submitted to regulatory authorities in the fourth quarter of 2018.
We reported supportive preclinical research for SRA141 demonstrating noteworthy anti-cancer activity in two independent oncology models, generated in preparation for an Investigational New Drug (IND) filing expected in the second half of 2018.

2017 Financial Results (all amounts reported in U.S. currency)

Research and development expenses were $30.2 million for the year ended December 31, 2017, compared to $33.9 million for the year ended December 31, 2016. The decrease is primarily due to expenses incurred in 2016, including $9.0 million related to the SRA737 license agreement, a $0.9 million upfront payment for the exclusive license of SRA141, and a $2.3 million restructuring charge related to close-out expenses for PNT2258. These decreases were partially offset by increases of $4.6 million in third-party manufacturing costs, $2.6 million in research and other costs related to SRA737 and SRA141, and $1.0 million in clinical trial costs. Research and development expenses included non-cash stock-based compensation of $4.0 million and $3.6 million for the years ended December 31, 2017 and 2016, respectively.

General and administrative expenses were $12.5 million for the year ended December 31, 2017 compared to $14.2 million for the year ended December 31, 2016. The decrease is primarily due to a $1.1 million decrease in business development expenses and a $0.5 million decrease in restructuring costs as compared to 2016. General and administrative expenses included non-cash stock-based compensation of $1.9 million for both the year ended December 31, 2017 and the year ended December 31, 2016.

For the year ended December 31, 2017, Sierra incurred a net loss of $42.0 million compared to a net loss of $47.9 million for the year ended December 31, 2016.

Cash and cash equivalents totaled $100.3 million as of December 31, 2017, compared to $107.8 million as of September 30, 2017, and $109.0 million as of December 31, 2016. The company believes that its existing cash and cash equivalents will be sufficient to fund current operating plans through approximately mid-2019.

At December 31, 2017, there were 52,395,223 shares of common stock issued and outstanding, and stock options to purchase 7,470,601 shares of common stock issued and outstanding.