Precision BioSciences to Report Third Quarter 2022 Financial Results on November 8, 2022

On November 2, 2022 Precision BioSciences, Inc. (Nasdaq: DTIL), a clinical stage gene editing company developing ARCUS-based ex vivo allogeneic CAR T and in vivo gene editing therapies, reported that it will publish financial results for the third quarter 2022 and provide a business update on November 8, 2022 (Press release, Precision Biosciences, NOV 2, 2022, View Source [SID1234622768]).

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G1 Therapeutics Provides Third Quarter 2022 Financial Results and Operational Highlights

On November 2, 2022 G1 Therapeutics, Inc. (Nasdaq: GTHX), a commercial-stage oncology company, reported that a corporate and financial update for the third quarter ended September 30, 2022 (Press release, G1 Therapeutics, NOV 2, 2022, View Source [SID1234622767]).

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"During the third quarter of 2022, we demonstrated continued execution on our clinical programs, but also experienced lower COSELA sales momentum versus what we achieved in the second quarter," said Jack Bailey, Chief Executive Officer of G1 Therapeutics. "Regarding the former, today we provided encouraging initial safety data from our ongoing Phase 2 trial of trilaciclib in combination with an ADC showing its potential to reduce the rates of adverse events associated with the ADC sacituzumab govitecan-hziy, including myelosuppression, diarrhea, and potentially alopecia. We also completed enrollment in our pivotal Phase 3 mTNBC trial and in our Phase 2 bladder cancer and mechanism of action trials. Regarding the latter, we are actively working through variability in the ES-SCLC market at certain times of the year due to patient flow and account staffing, and have recently put in place a variety of actions that we believe will enable us to drive growth over the coming months. G1’s mission is to improve the lives of those affected by cancer by effectively developing trilaciclib and by ensuing broad access to COSELA, and we remain dedicated to excellence in both areas."

Third Quarter 2022 and Recent Highlights

Financial

Achieved $8.3 million in Net COSELA Revenue: G1 recognized total revenues of $23.6 million in the third quarter of 2022, including $8.3 million in net product revenue from sales of COSELA.

Ended the Third Quarter 2022 with Cash, Cash Equivalents, and Marketable Securities of $123.0 million.
Clinical

Announced Initial Safety Data from Phase 2 Trial of Trilaciclib in Combination with an Antibody-Drug Conjugate; Additional Results Including Initial Efficacy Expected in 1H23: Initial Phase 2 safety data suggest on-target effect of trilaciclib to reduce (>50%) the rates of adverse events associated with the ADC sacituzumab govitecan-hziy, including myelosuppression, diarrhea and potentially alopecia due to the presence of CDK4/6-expressing cells in the intestinal crypt and hair follicles, relative to the previously published sacituzumab govitecan-hziy single agent safety profile. The Company anticipates disclosure of a more comprehensive data set including safety and initial efficacy results at a medical meeting in the second quarter 2023.

Completed Enrollment in Pivotal Phase 3 Clinical Trial of Trilaciclib in Patients with mTNBC: Enrollment in PRESERVE 2 is complete at 187 patients receiving first line trilaciclib or placebo prior to gemcitabine and carboplatin (GC). The primary endpoint is to evaluate the effect of trilaciclib on overall survival (OS) compared with placebo in patients receiving first-line GC. Key secondary endpoints include assessment of the effect of trilaciclib on patients’ quality of life compared with placebo, myeloprotection measures, progression free survival (PFS), and overall rate of response (ORR). G1 expects the interim OS analysis to be conducted by its data monitoring committee at 70% of events in the second half of 2023. If the trial meets the interim analysis stopping rule, it will terminate, and G1 will report the topline results. If it does not, the trial will continue to the final analysis. (Press release here)

Completed Enrollment in Phase 2 Clinical Trial of Trilaciclib in Combination with Chemotherapy and the Checkpoint Inhibitor Avelumab in Patients with Bladder Cancer (mUC): Enrollment is complete at 92 patients in PRESERVE 3. The primary endpoint is PFS. Key secondary endpoints include overall survival, overall response rate, duration of response, and myeloprotection. Initial safety and response data are expected in the fourth quarter of 2022 followed by data on the primary endpoint of progression free survival in 2023.

Confirmed that Initial Data from Pivotal Phase 3 Trial of Trilaciclib in Patients with Metastatic Colorectal Cancer (mCRC) (PRESERVE 1) Are Expected in the First Quarter of 2023: G1 has reiterated that it expects to release initial data, including results from the primary endpoint, in the first quarter of 2023. The primary endpoint is myeloprotection as measured by duration of severe neutropenia (DSN) in cycles 1-4 and the occurrence of severe neutropenia (SN) during induction. Key secondary endpoints include the effects of trilaciclib on PFS, OS, and patients’ quality of life compared with placebo. If the data from the primary endpoint are positive, G1 will work closely with the FDA to expedite our filing for regulatory approval in this indication. (Press release here)

Announced Acceptance of Abstract for Poster Presentation of Initial Results from Phase 2 Trial Confirming the MOA of Trilaciclib: This 24 patient Phase 2 trial in early stage TNBC is designed to confirm the MOA of trilaciclib in modulating the anti-tumor immune response. The primary endpoints will assess the immune-based MOA, including the impact of trilaciclib on CD8+ T cells and regulatory T cells, or Tregs, in the tumor microenvironment. Secondary endpoints include pathological complete response (pCR), immune response, and profiling measures. Initial results from the primary endpoint will be presented as a poster presentation during the 2022 SABCS.

Announced Acceptance of Two Abstracts for Poster Presentation during the Society for Immunotherapy of Cancer (SITC) (Free SITC Whitepaper) 2022 Annual Meeting: G1 will present two posters during the SITC (Free SITC Whitepaper) meeting: "Transient inhibition of cyclin-dependent kinase 4/6 with trilaciclib enhances inhibitory receptor immunotherapy to improve antitumor efficacy" (abstract #471) and "Trilaciclib, an intravenous cyclin-dependent kinase 4/6 inhibitor, enhances antitumor responses by modulating T cells" (abstract #1314).
Medical

Presented Data at the 2022 Precision Oncology Summit Demonstrating that Trilaciclib Reduces Severe Hematologic Adverse Events and Supportive Care Needs in Patients with Extensive-Stage Small Cell Lung Cancer (ES-SCLC) When Administered Prior to Chemotherapy: In real- world practice, trilaciclib is used in a heterogeneous population of ES-SCLC patients with variability in timing of trilaciclib initiation, chemotherapeutic backbone, and presence of hematological toxicity before trilaciclib initiation. Despite this heterogeneity, trilaciclib showed consistent potential to reduce occurrence of myelosuppression, supportive care utilization, chemotherapy dose decrease, and treatment delay. (Poster here)
Corporate

Conducted Virtual R&D Day, "Innovations in Oncology: The Science of Trilaciclib": On September 15, 2022, G1 conducted an R&D Day to review the development and expansion strategy for trilaciclib. Included in the agenda was a presentation of new preclinical data supporting potential of trilaciclib to work synergistically with other anti-cancer therapies, including by enhancing the cancer immunity cycle by enhancing T-cell activation, favorably altering the tumor microenvironment, and improving long term immune surveillance. (Webcast of event here)
Third Quarter 2022 Financial Results

As of September 30, 2022, cash and cash equivalents and marketable securities totaled $123.0 million, compared to $221.2 million as of December 31, 2021.

Total revenues for the third quarter of 2022 were $23.6 million, including $8.3 million in net product sales of COSELA and license revenue of $15.3 million, compared to total $4.9 million of total revenue in the third quarter of 2021. This license revenue in the current quarter is primarily related to revenue recognized from two development milestones in the Simcere license agreement, including a $13 million milestone related to the approval of COSELA in China.

Operating expenses for the third quarter of 2022 were $45.1 million, compared to $46.0 million for the third quarter of 2021. GAAP operating expenses include stock-based compensation expense of $4.8 million for the third quarter of 2022, compared to $5.5 million for the third quarter of 2021.

Cost of goods sold expense for the third quarter of 2022 was $1.1 million compared to $0.6 million for the third quarter of 2021, primarily due to an increase in product sales.

Research and development (R&D) expenses for the third quarter of 2022 were $19.6 million, compared to $21.1 million for the third quarter of 2021. The decrease in R&D expenses was primarily due to a decrease in costs for manufacturing of active pharmaceutical ingredients and drug product to support clinical trials.

Selling, general, and administrative (SG&A) expenses for the third quarter of 2022 were $24.4 million, compared to $24.3 million for the third quarter of 2021. The increase in SG&A expenses was due to increases in personnel costs due to increased headcount and administrative costs. The increase is offset by a decrease in medical affairs costs, commercialization costs, and professional and technology costs.

The net loss for the third quarter of 2022 was $25.3 million, compared to $42.5 million for the third quarter of 2021. The basic and diluted net loss per share for the third quarter of 2022 was $(0.59) compared to $(1.00) for the third quarter of 2021.

Webcast and Conference Call

G1 will host a webcast and conference call at 8:30 a.m. ET today to provide a corporate and financial update for the third quarter ended September 30, 2022.

Please note that there is a new process to access the call via telephone. To register and receive a dial in number and unique PIN to access the live conference call, please follow this link to register online. While not required, it is recommended that you join 10 minutes prior to the start of the event. A live and archived webcast will be available on the Events & Presentations page of the company’s website: www.g1therapeutics.com. The webcast will be archived on the same page for 90 days following the event.

About COSELA (trilaciclib) for Injection

COSELA (trilaciclib) was approved by the U.S. Food and Drug Administration on February 12, 2021.

Indication

COSELA (trilaciclib) is indicated to decrease the incidence of chemotherapy-induced myelosuppression in adult patients when administered prior to a platinum/etoposide-containing regimen or topotecan-containing regimen for extensive-stage small cell lung cancer.

Important Safety Information

COSELA is contraindicated in patients with a history of serious hypersensitivity reactions to trilaciclib.

Warnings and precautions include injection-site reactions (including phlebitis and thrombophlebitis), acute drug hypersensitivity reactions, interstitial lung disease (pneumonitis), and embryo-fetal toxicity.

The most common adverse reactions (>10%) were fatigue, hypocalcemia, hypokalemia, hypophosphatemia, aspartate aminotransferase increased, headache, and pneumonia.

Initial Results from Phase 2 Trial Demonstrate Potential of Trilaciclib to Reduce Adverse Events Related to an Antibody Drug Conjugate (ADC)

On November 2, 2022 G1 Therapeutics, Inc. (Nasdaq: GTHX), a commercial-stage oncology company, reported that safety data from the first 18 patients enrolled in its ongoing Phase 2, single arm study of trilaciclib administered prior to the antibody-drug conjugate (ADC), sacituzumab govitecan-hziy in patients with unresectable locally advanced or metastatic triple-negative breast cancer (TNBC) (Press release, G1 Therapeutics, NOV 2, 2022, View Source [SID1234622766]). These initial data highlight the potential for trilaciclib to meaningfully reduce adverse events related to use of sacituzumab.

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"Though the data are preliminary, we are seeing encouraging and consistent reductions in the rate of adverse events related to use of sacituzumab govitecan-hziy when trilaciclib is administered prior to the ADC, relative to the previously published single agent safety profile of this ADC, including those related to myelosuppression," said Raj Malik, M.D., Chief Medical Officer at G1 Therapeutics. "We believe we are seeing on-target effects of trilaciclib in the expected reduction in the rate of myelosuppression and in the rates of diarrhea and potentially alopecia. We will continue to progress this trial and look forward to presenting a more comprehensive data set including initial efficacy results at a medical meeting in the second quarter of 2023."

Preliminary Safety Data (n=18): Trilaciclib is well tolerated when administered prior to sacituzumab. Initial data on the first 18 patients show a clinically meaningful on-target effect of trilaciclib to reduce (>50%) the rates of multiple adverse events compared to the previously published sacituzumab govitecan-hziy single agent safety profile from the ASCENT trial, including myelosuppression (neutropenia, anemia, thrombocytopenia), and diarrhea and potentially alopecia due to the presence of CDK4/6-expressing cells in the intestinal crypt and hair follicles.

Summary of treatment-emergent adverse events (TEAEs) (≥ 15% of patients) in patients receiving trilaciclib in combination with sacituzumab govitecan-hziy Summary of TEAEs in patients receiving sacituzumab govitecan-hziy1

(Only includes TEAEs also reported in patients receiving trilaciclib and sacituzumab govitecan-hziy)
Phase 2 trial of trilaciclib in combination with sacituzumab govitecan-hziy TEAEs (n=18) ASCENT TEAEs (no trilaciclib) (n=258)
Adverse Event Any Grade Grade 3-4 Adverse Event Any Grade Grade 3-4
Fatigue 44% 0% Fatigue 52% 4%
Nausea 39% 0% Nausea 62% <4%
Constipation 28% 0% Constipation 37% <1%
Diarrhea 28% 0% Diarrhea 65% 11%
Headache 28% 0% Headache 18% 1%
Neutropenia 22% 17% Neutropenia 64% 52%
Decreased Appetite 22% 0% Decreased Appetite 28% 2%
Leukopenia 17% 17% Leukopenia 17% 10%
1Adapted from Bardia A, et al. Sacituzumab Govitecan in Metastatic Triple-Negative Breast Cancer. N Engl J Med 2021;384:1529-41. DOI: 10.1056/NEJMoa2028485. Table S1

Summary of other relevant TEAEs in patients receiving trilaciclib in combination with sacituzumab govitecan-hziy Summary of other relevant treatment-related adverse events (TRAEs) in patients receiving sacituzumab govitecan-hziy2

Phase 2 trial of trilaciclib in combination with sacituzumab govitecan-hziy TEAEs (n=18) ASCENT TRAEs (no trilaciclib) (n=258)
Adverse Event Any Grade Grade 3-4 Adverse Event Any Grade Grade 3-4
Anemia 6% 0% Anemia 34% 8%
Febrile Neutropenia 0% 0% Febrile Neutropenia 6% 6%
Thrombocytopenia 0% 0% Thrombocytopenia 5% 2%
2Adapted from Bardia A, et al. Sacituzumab Govitecan in Metastatic Triple-Negative Breast Cancer. N Engl J Med 2021;384:1529-41. DOI: 10.1056/NEJMoa2028485. Table 3

Phase 2 Trial Design

This is an exploratory Phase 2, multicenter, open-label, single arm study evaluating the safety and efficacy of trilaciclib administered prior to sacituzumab govitecan-hziy in patients with unresectable, locally advanced or metastatic TNBC who received at least 2 prior treatments, at least 1 in the metastatic setting. Trilaciclib will be administered as a 30-minute IV infusion completed within 4 hours prior to the start of sacituzumab govitecan-hziy treatment on day 1 and day 8 of each 21-day cycle.

The primary objective is to evaluate the anti-tumor efficacy of trilaciclib when administered prior to sacituzumab govitecan-hziy as measured by progression-free survival (PFS). Key secondary endpoints include evaluation of the anti-tumor efficacy as measured by the objective response rate (ORR), duration of objective response (DOR), clinical benefit rate (CBR), and overall survival (OS); and evaluation of the myeloprotective effects of trilaciclib.

About Triple Negative Breast Cancer (TNBC)

According to the American Cancer Society, nearly 300,000 new cases of invasive breast cancer are diagnosed annually in the U.S. Triple-negative breast cancer makes up approximately 15-20% of such diagnosed breast cancers. TNBC is cancer that tests negative for estrogen receptors, progesterone receptors, and excess HER2 protein. Because mTNBC cells lack key growth-signaling receptors, patients do not respond well to medications that block estrogen, progesterone, or HER2 receptors. Instead, treating mTNBC typically involves chemotherapy, radiation, and surgery. TNBC is considered to be more aggressive and have a poorer prognosis than other types of breast cancer. In general, survival rates tend to be lower with mTNBC compared to other forms of breast cancer, and mTNBC is also more likely than some other types of breast cancer to return after it has been treated, especially in the first few years after treatment. It also tends to be higher grade than other types of breast cancer.

Surface Oncology Announces Promising SRF388 Monotherapy Data in Non-Small Cell Lung Cancer (NSCLC), Opening Second Stage of Monotherapy Trial and NSCLC Pembrolizumab Combination Cohort

On November 2, 2022 Surface Oncology (Nasdaq: SURF), a clinical-stage immuno-oncology company developing next-generation immunotherapies that target the tumor microenvironment, reported financial results for the third quarter of 2022 (Press release, Surface Oncology, NOV 2, 2022, View Source [SID1234622765]).

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"We are excited by the monotherapy activity seen with SRF388 in relapsed non-small cell lung cancer (NSCLC), an area of high unmet need globally," said Rob Ross, M.D., chief executive officer. "Two patients with squamous NSCLC have had confirmed partial responses to monotherapy treatment. Both patients had progressed on multiple prior systemic treatments, including anti-PD-(L)1 antibodies and chemotherapy. In addition, a third patient with highly pretreated NSCLC experienced durable disease stabilization and has remained on study for over a year without progression. Based on these promising results in relapsed NSCLC, we have opened the second stage of our trial investigating SRF388 as a monotherapy, and we have treated our first patients in a new cohort to investigate SRF388 in combination with pembrolizumab in second to fourth line NSCLC. We look forward to sharing additional data from those trials in the first half of 2023."

Dr. Ross added, "While we continue to believe SRF617 holds therapeutic potential in a variety of tumor types, we have made the strategic decision to pause internal development of that program and focus our efforts on SRF388 and SRF114. As a result, we are implementing a corresponding reduction in our workforce. The work done by our impressive team of scientists and clinicians was outstanding, but we believe it is in the best interest of patients and our shareholders to invest our resources where they can have the greatest potential impact in the near term. We are actively pursuing partnership opportunities to advance SRF617 outside of Surface."

Clinical Program Updates

SRF388, first-in-class antibody targeting IL-27

In the ongoing study evaluating SRF388 as a monotherapy in NSCLC, two confirmed partial responses have been observed as of the data cut-off of August 24, 2022, in patients treated at or above the recommended Phase 2 dose (22% ORR (2/9)), which includes 100% (2/2) of patients with squamous NSCLC. Additionally, a patient with adenocarcinoma has experienced durable disease stabilization, ongoing for more than 56 weeks. All three of these patients had previous treatment with chemotherapy and with anti-PD-(L)1 agents. Based on these results, Surface has opened the second stage of the Simon’s 2-stage trial which is expected to enroll 40 patients with NSCLC in total.
Surface has initiated a single-arm Phase 2 study evaluating SRF388 in combination with pembrolizumab in patients with NSCLC who have progressed after 1-3 prior lines of therapy, including chemotherapy and anti-PD-1 agents. The study is anticipated to enroll up to 40 patients with NSCLC.
Surface anticipates sharing clinical results from the ongoing SRF388 studies in the first half of 2023.
Surface has stopped enrollment in the renal cell carcinoma (RCC) study to focus efforts on NSCLC and HCC based on encouraging data seen in those indications.
SRF617, novel antibody targeting CD39

Following a portfolio review, Surface made the strategic decision to pause the internal clinical development of SRF617, a novel antibody targeting CD39. In conjunction with this change, Surface is implementing an organizational restructuring that will result in a reduction of approximately 20% of its workforce.
This change will enable the company to focus its resources on the advancement of SRF388 and SRF114, which Surface believes hold the greatest near-term potential to provide benefit to patients and drive value for shareholders.
Management now projects that current cash and cash equivalents are sufficient to fund Surface into the second quarter of 2024.
Surface is actively pursuing potential business development opportunities for SRF617.
SRF114, potential best-in-class antibody targeting CCR8

In October, the U.S. Food and Drug Administration (FDA) cleared the Investigational New Drug (IND) application for SRF114, a potential best-in-class CCR8 inhibitor. Surface expects to enroll the first patient soon.
Third Quarter and Subsequent Corporate Highlights

In October, Surface announced the publication of a study entitled, "Structural basis of activation and antagonism of receptor signaling mediated by Interleukin-27" in Cell Reports. The study was a collaborative research effort between the Unit for Structural Biology at the VIB-University of Ghent Center for Inflammation Research and Surface Oncology. The research provides important structural evidence that the SRF388 antibody directly competes with the IL-27 receptor to prevent downstream signaling of the cytokine.
In September, Surface presented new preclinical data demonstrating IL-27 induces a gene expression signature that has been associated with resistance to chemotherapy, radiotherapy, and checkpoint inhibition at the 10th Annual Cytokines Meeting of the International Cytokine and Interferon Society (ICIS). The findings support the continued clinical investigation of SRF388 in multiple tumor types.
Corporate Update Conference Call and Webcast
Surface management will host a conference call and live webcast today, November 2, 2022, at 8:30 a.m. ET to discuss the SRF388 data and other corporate updates. Individuals interested in viewing the webcast may do so by registering via this webcast link or by visiting the Investor Relations section of the company’s website at: www.surfaceoncology.com.

To access the conference call by phone, please use this registration link, and you will be provided with dial-in details. A webcast re-play will be available in the investor relations section on the company’s website shortly following the completion of the call.

Financial Results

As of September 30, 2022, cash, cash equivalents and marketable securities were $146.4 million, compared to $154.1 million on December 31, 2021. General and administrative (G&A) expenses were $6.0 million for the third quarter ended September 30, 2022, compared to $5.8 million for the same period in 2021. The increase primarily relates to personnel related costs from increased headcount. G&A expenses included $1.1 million in stock-based compensation expense for the third quarter ended September 30, 2022.

Research and development (R&D) expenses were $16.9 million for the third quarter ended September 30, 2022, compared to $14.0 million for the same period in 2021. The increase was primarily driven by expenses incurred for the SRF388 and SRF617 Phase 1 and Phase 2 clinical trials as well as manufacturing expenses incurred for the SRF114 program. R&D expenses included $0.7 million in stock-based compensation expense for the third quarter ended September 30, 2022.

For the third quarter ended September 30, 2022, net loss was $23.2 million, or basic and diluted net loss per share of $0.39. Net loss was $19.9 million for the same period in 2021, or basic and diluted net loss per share of $0.44.

United Therapeutics Corporation Reports Third Quarter 2022 Financial Results

On November 2, 2022 United Therapeutics Corporation (Nasdaq: UTHR), a public benefit corporation, reported its financial results for the quarter ended September 30, 2022 (Press release, United Therapeutics, NOV 2, 2022, View Source [SID1234622764]). Total revenues in the third quarter of 2022 grew 16% year-over-year to $516.0 million, compared to $444.7 million in the third quarter of 2021.

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"We are thrilled to report the highest quarterly revenue in our history," said Martine Rothblatt, Ph.D., Chairperson and CEO of United Therapeutics. "On top of our historic performance, we continue to innovate with the recent launch of the pivotal TETON 2 study of Tyvaso in idiopathic pulmonary fibrosis, which adds to the four other registration studies we have underway."

"We are extremely pleased to have achieved several commercial milestones in the third quarter, highlighted by Tyvaso becoming our first $1 billion annual run rate product," said Michael Benkowitz, President and Chief Operating Officer of United Therapeutics. "Tyvaso DPI has provided a catalyst to our growth trajectory and has us well positioned to achieve our goal of 6,000 patients on Tyvaso by the end of the year."

(1) Net product sales include both the drug product and the respective inhalation devices for both Tyvaso and Tyvaso DPI.

(2) Net product sales include sales of infusion devices, such as the Remunity Pump.

Net product sales from our treprostinil-based products (Tyvaso, Remodulin, and Orenitram) grew by $84.4 million for the third quarter of 2022, as compared to the same period in 2021. The growth in Tyvaso revenues resulted primarily from an increase in quantities sold and, to a lesser extent, the impact of a price increase and lower gross-to-net deductions. The increase in quantities sold was driven by our launch of sales of Tyvaso DPI in June 2022 and continued growth in the number of patients following the Tyvaso label expansion in March 2021 to include the treatment of pulmonary hypertension associated with interstitial lung disease (PH-ILD). The decrease in Remodulin revenues was due to a $6.8 million decrease in international Remodulin net product sales and a $4.6 million decrease in U.S. Remodulin net product sales.

Expenses

Cost of product sales. The table below summarizes cost of product sales by major category (dollars in millions):

Cost of product sales, excluding share-based compensation. Cost of product sales for the three months ended September 30, 2022 increased as compared to the same period in 2021, primarily due to an increase in royalty expense and product costs due to an overall increase in sales.

Research and development expense. The table below summarizes the nature of research and development expense by major expense category (dollars in millions):

(1) External research and development primarily includes fees paid to third parties (such as clinical trial sites, contract research organizations, and contract laboratories) for preclinical and clinical studies and payments to third-party contract manufacturers before FDA approval of the relevant product.

(2) Internal research and development primarily includes salary-related expenses for research and development functions, internal costs to manufacture product candidates before FDA approval, and internal facilities-related expenses, including depreciation, related to research and development activities.

(3) Refer to Share-based compensation below.

(4) Impairments primarily includes impairment charges to write-down the carrying value of in-process research and development and of certain property, plant, and equipment as a result of research and development activities.

(5) Other primarily includes upfront fees and milestone payments to third parties under license agreements related to development-stage products, and adjustments to the fair value of our contingent consideration obligations.

Research and development expense, excluding share-based compensation. Research and development expense for the three months ended September 30, 2022 decreased as compared to the same period in 2021, primarily due to adjustments to the fair value of our contingent consideration obligations.

General and administrative, excluding share-based compensation. The increase in general and administrative expense for the three months ended September 30, 2022, as compared to the same period in 2021, was primarily due to: (1) an increase in branded prescription drug fee expense associated with sales of Tyvaso; and (2) an impairment expense related to property, plant, and equipment.

The increase in share-based compensation benefit for the three months ended September 30, 2022, as compared to the same period in 2021, was primarily due to an increase in STAP benefit driven by an 11 percent decrease in our stock price for the three months ended September 30, 2022, as compared to a three percent increase in our stock price for the same period in 2021.

Other expense, net. The decrease in other expense, net of $17.6 million for the three months ended September 30, 2022, as compared to the same period in 2021, was primarily due to net unrealized and realized gains and losses on equity securities.

Income tax expense. Income tax expense for the three months ended September 30, 2022 and 2021 was $73.2 million and $41.7 million, respectively. The effective income tax rate (ETR) for the three months ended September 30, 2022 and 2021 was 23 percent and 20 percent, respectively. The ETR for the three months ended September 30, 2022 increased compared to the ETR for the three months ended September 30, 2021 primarily due to an increase in the valuation allowance in the current period compared to a decrease in the prior period.

PRODUCT COMMERCIALIZATION UPDATE

Tyvaso DPI. The FDA approved Tyvaso DPI in May 2022 for pulmonary arterial hypertension (PAH) and PH-ILD. Our first commercial shipments to specialty pharmacies occurred in June 2022 and the first patients started Tyvaso DPI therapy shortly thereafter.

Tyvaso Inhalation Solution in PH-ILD. The FDA approved Tyvaso for the PH-ILD indication on March 31, 2021, and we launched commercial efforts for the new indication shortly thereafter. In April 2022, the Centers for Medicare and Medicaid Services updated its Local Coverage Determination (LCD) for Tyvaso to include an indication for PH-ILD. This LCD became effective on June 5, 2022.

Remunity Pump for Remodulin. In February 2021, we launched U.S. commercial sales of the Remunity Pump for Remodulin, which is a pre-filled, semi-disposable system for subcutaneous delivery of treprostinil. The Remunity Pump consists of a small, lightweight, durable pump and separate controller. The Remunity Pump uses disposable cassettes filled with Remodulin, which can be connected to the pump with less patient manipulation than is typically involved in filling other currently-available subcutaneous pumps. The Remunity Pump was initially made available to patients in the United States primarily by contracted specialty pharmacies, with weekly shipments of disposable cassettes pre-filled with Remodulin. In September 2022, we launched a patient-filled version, which enables patients to receive monthly shipments of Remunity cassettes and Remodulin instead of weekly shipments of pre-filled cassettes.

RESEARCH AND DEVELOPMENT UPDATE

Updates on select later-stage programs are below.

Tyvaso in IPF — TETON 1 and TETON 2. We are enrolling two phase 3 studies, called TETON 1 and TETON 2, of Tyvaso for the treatment of idiopathic pulmonary fibrosis (IPF). TETON 1 is being conducted in the United States and Canada, and TETON 2 is being conducted outside the United States and Canada. The primary endpoint of both studies is the change in absolute forced vital capacity (FVC) from baseline to week 52. The TETON 1 study enrolled its first patient in June 2021, and the TETON 2 study enrolled its first patient in October 2022.

The TETON program was prompted by data from the INCREASE study which demonstrated improvements in certain key parameters of lung function in pulmonary hypertension patients with fibrotic lung disease. Specifically, in the INCREASE study, treatment with Tyvaso resulted in significant improvements in percent predicted FVC at weeks 8 and 16, with subjects having an underlying etiology of IPF showing the greatest improvement. Consistent positive effects were also observed in patients with chronic hypersensitivity pneumonitis and environmental/occupational lung disease. In May 2022, data from the INCREASE open-label, long-term extension trial were presented at a medical conference, indicating that improvements in FVC were sustained for at least 64 weeks for IPF patients. For those patients who received placebo during the INCREASE study, marked improvements in FVC were observed following transition to active Tyvaso during the open-label extension study. These data points, combined with substantial preclinical evidence of antifibrotic activity of treprostinil, suggest that Tyvaso may offer a treatment option for patients with fibrotic lung disease.

Ralinepag phase 3 studies — ADVANCE CAPACITY and ADVANCE OUTCOMES. We are enrolling two phase 3 studies to support the potential approval of oral ralinepag for PAH.

Centralized Lung Evaluation System (CLES) for ex-vivo lung perfusion (EVLP). We are evaluating the use of the CLES technology for EVLP through a registration study of 186 lung transplant participants. Enrollment for this study is nearly complete.

Tyvaso in PH-COPD — PERFECT. In September 2022, we discontinued the PERFECT clinical study of Tyvaso for the treatment of WHO Group 3 pulmonary hypertension associated with chronic obstructive pulmonary disease. We terminated the study in accordance with a recommendation of the study’s independent Data Safety Monitoring Committee (DSMC), following a routine safety and efficacy analysis conducted by the DSMC.

WEBCAST

We will host a webcast to discuss our third quarter 2022 financial results on Wednesday, November 2, 2022, at 9:00 a.m. Eastern Time. The webcast can be accessed live via our website at View Source A replay of the webcast will also be available at the same location on our website.