Arrowhead Pharmaceuticals Reports Fiscal 2024 Second Quarter Results

On May 9, 2024 Arrowhead Pharmaceuticals, Inc. (NASDAQ: ARWR) reported financial results for its fiscal 2024 second quarter ended March 31, 2024 (Press release, Arrowhead Pharmaceuticals, MAY 9, 2024, View Source [SID1234643041]). The Company is hosting a conference call today, May 9, 2024, at 4:30 p.m. ET to discuss the results.

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Christopher Anzalone, Ph.D., President and CEO at Arrowhead, said: "Arrowhead has achieved significant progress across our broad pipeline of investigational RNAi-based medicines that leverage the proprietary TRiMTM platform and we continued to strengthen our focus on and investment in our late-stage cardiometabolic programs. As we approach completion of the PALISADE Phase 3 study of plozasiran and initiate additional Phase 3 trials of both plozasiran and zodasiran, we will continue to efficiently execute our clinical studies. Simultaneously, we plan to begin the regulatory submission process, refine our commercial strategy, and build the commercial infrastructure to support it."

Webcast and Conference Call and Details

Investors may access a live audio webcast on the Company’s website at View Source A replay of the webcast will be available approximately two hours after the conclusion of the call.

For analysts that wish to participate in the conference call, please register at https://register.vevent.com/register/BIf9305354ec6b44e3b3e946792a393a5e. Once registered, you will receive the dial-in number and a personalized PIN code that will be required to access the call.

Selected Recent Events

Received a $50 million milestone payment from Royalty Pharma plc, which was paid in the third quarter of fiscal 2024, following the completion of enrollment of the Phase 3 OCEAN(a) – Outcomes Trial of olpasiran, being conducted by Amgen. Olpasiran, a small interfering RNA originally developed by Arrowhead using its proprietary Targeted RNAi Molecule (TRiMTM) platform, is designed to lower levels of lipoprotein(a), a genetically determined risk factor for cardiovascular disease.

Presented final data from the Phase 2 SHASTA-2 study of investigational plozasiran in patients with severe hypertriglyceridemia in a late-breaking oral presentation at the American College of Cardiology 73rd Annual Scientific Session & Expo and simultaneously published in the journal JAMA Cardiology. Key results included the following:
Treatment with plozasiran led to dose-dependent placebo-adjusted reductions in triglycerides (primary endpoint) of -49% (P < 0.001), -53% (P < 0.001), and -57% (P < 0.001), driven by placebo-adjusted reductions in APOC3 of -68% (P < 0.001), -72% (P < 0.001), and -77% (P < 0.001) at week 24, after receiving two doses of 10 mg, 25 mg, and 50 mg plozasiran, respectively. Mean maximum, non-placebo adjusted reductions from baseline in triglycerides and APOC3 were up to 86% and 90% and typically occurred around week 16 or week 20.
Among patients treated with plozasiran, 90.6% achieved a triglyceride level less than 500 mg/dL, the level associated with increased risk of acute pancreatitis, at week 24. In addition, 48.4% of patients achieved normal triglyceride levels of less than 150 mg/dL at week 24.

Subjects treated with plozasiran also showed improvements in multiple atherogenic lipid and lipoprotein levels, including remnant cholesterol, HDL-cholesterol, and non-HDL cholesterol.
Plozasiran demonstrated a favorable safety profile in the SHASTA-2 study. The adverse event and serious adverse event profile were similar across treatment groups. Observed adverse events generally reflected the comorbidities and underlying conditions of the study population.

Initiated an Expanded Access Program (EAP) to make investigational plozasiran available outside of a clinical trial for patients with familial chylomicronemia syndrome (FCS) who meet certain program eligibility criteria.
The plozasiran EAP is for individuals living with FCS. As with any investigational medicine that has not been approved by regulatory authorities, investigational plozasiran may or may not be effective in treating your diagnosis or condition, and there may be risks associated with its use. If you are a patient or caregiver wishing to know more about this plozasiran EAP for FCS, please discuss this EAP and all treatment options with your treating physician. If you are a treating physician and are seeking information about the plozasiran EAP or would like to request access for a patient, please contact [email protected].

Launched the 2024 Summer Series of R&D webinars to highlight specific therapeutic areas in Arrowhead’s pipeline. Each event will feature presentations by Arrowhead team members and external key opinion leaders, who will discuss the respective disease areas and treatment landscapes. 2024 Summer Series Schedule:
May 23, 2024 – Muscular
June 25, 2024 – Cardiometabolic
July 16, 2024 – Pulmonary
August 15, 2024 – Obesity/Metabolic
September 25, 2024 – Central Nervous System
Dosed the first subjects in a Phase 1/2a clinical trial (NCT06209177) of ARO-CFB, designed to reduce hepatic expression of complement factor B, and is being developed as a potential treatment for diseases associated with activation of the complement pathway.
Dosed the first subjects in a Phase 1/2a clinical trial (NCT06138743) of ARO-DM1, designed to reduce expression of the dystrophia myotonica protein kinase gene in the muscle, and is being developed as a potential treatment for type 1 myotonic dystrophy, the most common adult-onset muscular dystrophy.
Strengthened the balance sheet through an underwritten registered offering of common stock for gross proceeds of approximately $450 million, before deducting underwriting discounts, commissions, and other offering expenses payable by the company.
Selected Fiscal 2024 Second Quarter Financial Results

ARROWHEAD PHARMACEUTICALS, INC.
CONSOLIDATED CONDENSED FINANCIAL INFORMATION
(in thousands, except per share amounts)

OPERATING SUMMARY

Three Months Ended

March 31,

2024

2023

(unaudited)

Revenue

$

$

146,267

Operating Expenses:

Research and development

101,122

74,881

General and administrative expenses

25,069

23,221

Total operating expenses

126,191

98,102

Operating (loss) income

(126,191

)

48,165

Total other expense

(805

)

(489

)

(Loss) income before income tax expense and noncontrolling interest

(126,996

)

47,676

Income tax expense

Net (loss) income including noncontrolling interest

(126,996

)

47,676

Net (loss) income attributable to noncontrolling interest, net of tax

(1,696

)

(999

)

Net (loss) income attributable to Arrowhead Pharmaceuticals, Inc.

$

(125,300

)

$

48,675

Net (loss) income per share attributable to Arrowhead Pharmaceuticals, Inc. – Diluted

$

(1.02

)

$

0.45

Weighted-average shares used in calculating – Diluted

123,285

108,143

FINANCIAL POSITION SUMMARY

March 31, 2024

September 30, 2023

(unaudited)

Cash, cash equivalents and restricted cash

$

127,704

$

110,891

Investments

395,410

292,735

Total cash resources (cash and investments)

523,114

403,626

Other assets

432,036

361,926

Total Assets

$

955,150

$

765,552

Current deferred revenue

$

$

866

Other liabilities

459,745

477,524

Total Liabilities

$

459,745

$

478,390

Total Arrowhead Pharmaceuticals, Inc. Stockholders’ Equity

$

483,794

$

271,343

Noncontrolling Interest

11,611

15,819

Total Noncontrolling Interest and Stockholders’ Equity

$

495,405

$

287,162

Total Liabilities, Noncontrolling Interest and Stockholders’ Equity

$

955,150

$

765,552

Shares Outstanding

124,133

107,312

Kite And Arcellx Continue Momentum With Advances In Anito-Cel Multiple Myeloma Program

On May 9, 2024 Kite, a Gilead Company (NASDAQ: GILD), and Arcellx, Inc. (NASDAQ: ACLX) reported several key operational updates on their partnered anitocabtagene autoleucel (anito-cel) multiple myeloma program (Press release, Gilead Sciences, MAY 9, 2024, View Source [SID1234643040]). Anito-cel is the first BCMA CAR T to be investigated in multiple myeloma that utilizes Arcellx’s novel and compact D-Domain binder.

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The companies shared the design of a global, Phase 3 randomized controlled clinical trial, iMMagine-3, which Kite expects to start in the second half of this year. The trial will compare the efficacy and safety of anito-cel randomized against the standard of care (SOC) in patients with relapsed and/or refractory multiple myeloma (rrMM) who have received one to three prior lines of therapy, including an immunomodulatory drug (lMiD) and an anti-CD38 monoclonal antibody.

Kite’s facility in Frederick, Maryland will manufacture anito-cel for this trial. This follows the completion of the technical transfer from a third-party contract manufacturing organization to Kite, as well as the transfer of the Investigational New Drug (IND) application for anito-cel, which has been cleared by the U.S. Food and Drug Administration.

"We are pleased to start the Phase 3 pivotal trial, iMMagine-3, in the second half of this year given the tremendous unmet need that remains in patients with relapsed and/or refractory multiple myeloma," said Cindy Perettie, Executive Vice President, Kite. "As we prepare for this pivotal program, we look forward to leveraging our manufacturing expertise to further position anito-cel as a potential best-in-class cell therapy. We know manufacturing quality, reliability and speed are critically important as every day matters for these patients."

"Our global iMMagine-3 trial will evaluate anito-cel as a second through fourth line treatment in patients with multiple myeloma who were previously exposed to both an immunomodulatory drug and an anti-CD38 monoclonal antibody," said Rami Elghandour, Arcellx’s Chairman and Chief Executive Officer. "The iMMagine-3 study allows us to maximize the impact of anito-cel as it captures what will become the largest second line patient population based on the current treatment paradigm, as anti-CD38 therapies move to front line treatment. This population represents an emerging significant unmet clinical need allowing us to provide access to a unique patient population. In addition, the completion of the technical transfer to Kite allowed us to accelerate our development program and launch iMMagine-3 globally, which will enable broader and earlier patient access to anito-cel."

About iMMagine-3 Global Phase 3 Randomized Controlled Clinical Trial

iMMagine-3 is a phase 3, randomized controlled trial designed to compare the efficacy and safety of anitocabtagene autoleucel (anito-cel) with SOC in patients with relapsed and/or refractory multiple myeloma (rrMM) who have received one to three prior lines of therapy, including an immunomodulatory drug (lMiD) and an anti-CD38 monoclonal antibody.

iMMagine-3 will enroll approximately 450 adult patients. Prior to randomization, investigator’s choice of SOC regimens include: pomalidomide, bortezomib, and dexamethasone (PVd); daratumumab, pomalidomide, and dexamethasone (DPd); carfilzomib, daratumumab and dexamethasone (KDd); or carfilzomib and dexamethasone (Kd). Patients in the anito-cel arm will undergo leukapheresis and optional bridging therapy (with the SOC regimen selected by the investigator prior to randomization) followed by lymphodepleting chemotherapy (fludarabine 30 mg/m2/d and cyclophosphamide 300 mg/m2/d for 3 days) and one infusion of anito-cel (115×106 CAR+ T cells) on Day 1.

The primary endpoint is progression free survival (PFS) per blinded independent review according to the 2016 IMWG uniform response criteria for MM with the hypothesis that anito-cel will prolong PFS compared to SOC. Key secondary endpoints include complete response rate (CR/sCR), minimal residual disease negativity, overall survival, and safety.

The iMMagine-3 trial is expected to initiate in the second half of 2024 at ~130 study sites across North America, Europe, and rest of world.

Phio Pharmaceuticals Reports Q1 2024 Results and Provides Business Update

On May 9, 2024 Phio Pharmaceuticals Corp. (Nasdaq: PHIO), a clinical stage biotechnology company whose proprietary INTASYL siRNA gene silencing technology is designed to make immune cells more effective in killing tumor cells, reported its Q1 2024 financial results and provided a business update (Press release, Phio Pharmaceuticals, MAY 9, 2024, View Source [SID1234643036]).

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Recent Corporate Updates

· Phio’s INTASYL compound PH-762 is currently being investigated in an open-label Phase 1b clinical study (NCT 06014086) to evaluate the safety and tolerability of intratumoral PH-762 in cutaneous squamous cell (cSCC), melanoma, or Merkel cell carcinoma. Two patients have already completed treatment. Four sites across the US are now engaged in the Phase 1b study. The sites are:
o George Washington University in Washington DC
o Banner MD Anderson in Arizona
o Centricity Research in Ohio
o Integrity Research in Florida.
· Presented new data on the immunotherapeutic activity of INTASYL at:
o 10th Annual Immunotherapy of Cancer (SITC) (Free SITC Whitepaper) Conference (ITOC10): this preclinical data demonstrates the potential of the INTASYL compound PH-905 targeting Cbl-b to improve the function of natural killer (NK) cells.
o 27th Annual American Society of Gene and Cell Therapy (ASGCT) (Free ASGCT Whitepaper): this preclinical data demonstrates that intratumoral injection of PH-762 significantly inhibits tumor growth in murine cells and may generate memory-specific T cells.
· The INTASYL siRNA platform is the focus of a National Spotlight on PBS Viewpoint, a national program hosted by Dennis Quaid, and on Fox Business Network; both are airing through May.
· Patent granted by USPTO for two of its INTASYL Compounds, RXI-185 and RXI-231 that treat age-related skin disorders including photo-aging and dermal hyperpigmentation targeting down-regulation of the Matrix metalloproteinase-1(MMP-1) and Tyrosinase (TYR) proteins.

Financial Results

Cash Position

At March 31, 2024, we had cash of $6.5 million as compared with $8.5 million at December 31, 2023.

Research and Development Expenses

Research and development expenses were $1.1 million for the three months ended March 31, 2024 as compared with $2.1 million for the three months ended March 31, 2023, a decrease of 46%. The decrease was primarily driven by the Company’s cost rationalization measures in transitioning from a discovery research company to a product development company resulting in decreased costs for the wind-down of preclinical studies, salary-related costs and lab supplies. Additional decreases in research and development expenses were due to clinical consulting fees incurred in connection with the Company’s IND filing and manufacturing fees for PH-762 in the prior year period.

General and Administrative Expenses

General and administrative expenses were $1.1 million for the three months ended March 31, 2024 as compared with $1.5 million for the three months ended March 31, 2023, a decrease of 28%. The decrease was primarily due to decreases in consulting expenses and legal expenses as compared to the prior year period.

Net Loss

Net loss was $2.2 million for the three months ended March 31, 2024 as compared with $3.6 million for the three months ended March 31, 2023. The decrease in net loss was primarily due to the changes in research and development expenses, as described above.

Anaptys to Receive $50 Million in a Capped Non-Recourse Monetization from Amended Agreement with Sagard in Exchange for Additional Jemperli Royalties

On May 9, 2024 AnaptysBio, Inc. (Nasdaq: ANAB), a clinical-stage biotechnology company focused on delivering innovative immunology therapeutics, reported the execution of an amended agreement with Sagard Healthcare for additional Anaptys Jemperli (dostarlimab) royalties (Press release, AnaptysBio, MAY 9, 2024, View Source [SID1234643035]). Anaptys intends to utilize the proceeds of the transaction to continue the broad development of its immune cell modulators (ICMs), including its best-in-class checkpoint agonists, in heterogeneous, systemic autoimmune and inflammatory diseases.

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"We believe this amended agreement with Sagard further validates the commercial potential of Anaptys-discovered Jemperli and brings significant non-dilutive funding to Anaptys, further strengthening our balance sheet," said Daniel Faga, president and chief executive officer of Anaptys. "This additional capital will further enable investment across our industry leading ICM portfolio where we expect to end 2024 with four programs in clinical development to potentially bring transformational medicines to patients."

"We are thrilled to amend our partnership with Anaptys on this royalty transaction which reflects our growing confidence in Jemperli plus chemotherapy as a treatment for patients with certain types of endometrial cancer, as well as the potential of Jemperli as a monotherapy and in combination with other therapeutics to treat a broad range of solid tumor cancers. Sagard’s investment is aligned with our goal of accelerating biopharmaceutical innovation by providing our partners with flexible sources of financing," said Ali Alagheband, partner at Sagard.

Upon closing of this transaction, which is anticipated by the end of next week, Sagard will pay Anaptys $50 million upfront in exchange for royalties payable to Anaptys under its GSK collaboration on all annual global net sales of Jemperli. The amended agreement now includes the royalty tiers of 12% to 25% for annual global net sales above $1 billion.

Unchanged from the prior agreement, Sagard receives royalties of 8% for annual global net sales below $1 billion and may also receive up to a total of $105 million in potential cash milestones, of which $15 million are subject to certain future Jemperli regulatory filing and approval milestones and up to $90 million are subject to certain commercial sales milestones due prior to Jemperli achieving the $1 billion in annual global net sales threshold.

A $75 million milestone due upon Jemperli achieving the $1 billion in annual global net sales threshold remains not subject to this agreement. Also, royalties and milestones due to Anaptys upon further development and commercialization of the Anaptys-discovered anti-TIM-3 antagonist (cobolimab, (GSK4069889)) antibody under the GSK collaboration remain not subject to this agreement.

The capped aggregate Jemperli royalties and milestones to be received by Sagard under this amended agreement have been revised. Now, once Sagard receives an aggregate of either $600 million if received by March 31, 2031, or $675 million if received at any time thereafter, the agreement will expire, resulting in Anaptys regaining all subsequent Jemperli royalties and milestones under the GSK collaboration.

Goodwin Procter LLP is acting as counsel to Anaptys, and Foley Hoag LLP is acting as counsel to Sagard, in this monetization transaction.

About Jemperli

Jemperli is a programmed death receptor-1 (PD-1)-blocking antibody that binds to the PD-1 receptor and blocks its interaction with the PD-1 ligands PD-L1 and PD-L2.

In the U.S., Jemperli is indicated in combination with carboplatin and paclitaxel, followed by Jemperli as a single agent for the treatment of adult patients with primary advanced or recurrent endometrial cancer that is dMMR, as determined by a U.S. Food and Drug Administration (FDA)-approved test, or MSI-H, and as a single agent for adult patients with dMMR recurrent or advanced endometrial cancer, as determined by a U.S. FDA-approved test, that has progressed on or following a prior platinum-containing regimen in any setting and are not candidates for curative surgery or radiation. The sBLA supporting this indication in combination with carboplatin and paclitaxel for dMMR/MSI-H primary advanced or recurrent endometrial cancer received Breakthrough Therapy designation and Priority Review from the U.S. FDA. Jemperli is also indicated in the U.S. for patients with dMMR recurrent or advanced solid tumors, as determined by a U.S. FDA-approved test, that have progressed on or following prior treatment and who have no satisfactory alternative treatment options. The latter indication is approved in the U.S. under accelerated approval based on tumor response rate and durability of response. Continued approval for this indication in solid tumors may be contingent upon verification and description of clinical benefit in a confirmatory trial(s).

Jemperli was discovered by Anaptys and licensed to TESARO, Inc., under a collaboration and exclusive license agreement signed in March 2014. Under this agreement, GSK is responsible for the ongoing research, development, commercialization and manufacturing of Jemperli and cobolimab.

ALX Oncology Reports First Quarter 2024 Financial Results and Provides Corporate Update

On May 9, 2024 ALX Oncology Holdings Inc., ("ALX Oncology" or the "Company") (Nasdaq: ALXO), an immuno-oncology company developing therapies that block the CD47 immune checkpoint pathway, reported financial results for the first quarter ended March 31, 2024, and provided a corporate update (Press release, ALX Oncology, MAY 9, 2024, View Source [SID1234643034]).

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"We entered the quarter with a great deal of momentum having achieved a key validating development milestone for our platform asset evorpacept in Q4 2023 by reporting positive results in a prespecified randomized interim analysis of ASPEN-06’s Phase 2 clinical trial in advanced HER2-positive gastric/GEJ cancer, becoming the first CD47 blocker to demonstrate anti-tumor activity in a global randomized study in solid tumors," said Jason Lettmann, Chief Executive Officer of ALX Oncology. "On the heels of this outstanding accomplishment, our first quarter efforts were focused on ensuring optimal clinical and operational execution as we advance our robust and maturing clinical-stage pipeline of best-in-class oncology programs that are reporting multiple value inflection datapoints in the coming months."

First Quarter 2024 Highlights and Recent Developments

Reported positive data from an ongoing investigator-sponsored trial ("IST") Phase 1/2 clinical trial of evorpacept in combination with standard-of-care in patients with relapsed or refractory B-cell non-Hodgkin lymphoma ("R/R B-NHL") in an oral presentation at the American Association for Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting on April 9, 2024, in San Diego.
Twenty patients with indolent (n=18) and aggressive (n=2) R/R B-NHL received evorpacept plus standard rituximab and lenalidomide ("R2").
Evorpacept plus R2 was well tolerated with a safety profile similar to historical R2.
The combination achieved promising initial activity with a best overall response rate ("ORR") of 94% and a complete response rate ("CRR") of 83% in patients with indolent R/R B-NHL (R2 historical CRR benchmark is 34%).
The clinical trial is conducted and sponsored by the University of Texas MD Anderson Cancer Center.
Received acceptance of two evorpacept abstracts from the 2024 American Society of Cancer Oncology ("ASCO") Annual Meeting taking place in Chicago from May 31-June 4, 2024.
Evorpacept plus enfortumab vedotin in patients with locally advanced or metastatic urothelial carcinoma: Phase 1a dose escalation results
Session Type and Title: Poster Presentation – Genitourinary Cancer – Kidney and Bladder
Session Date and Time: Sunday, June 2, 2024, 9:00 AM – 12:00 PM CDT
Location: Hall A
Abstract Number: 4575 (ALX Oncology Sponsored Clinical Trial)
Results of a Phase 2 study of evorpacept (ALX148), cetuximab and pembrolizumab in patients with refractory microsatellite stable metastatic colorectal cancer
Session Type and Title: Poster Presentation – Gastrointestinal Cancer – Colorectal and Anal
Session Date and Time: Saturday, June 1, 2024, 1:30 PM – 4:30 PM CDT
Location: Hall A
Abstract Number: 3530 (IST conducted by the University of Colorado Cancer Center and sponsored by the Academic GI Cancer Consortium)
Announced initiation of a Phase 2 IST of neoadjuvant radiation and evorpacept in combination with KEYTRUDA (pembrolizumab) in patients with previously untreated and early-stage locally advanced, resectable, human papillomavirus-mediated oropharyngeal cancer.
The clinical trial is conducted and sponsored by the Hanna and Mark Gleiberman Head and Neck Cancer Center at the University of California, San Diego.
Announced appointment of Allison Dillon, Ph.D., as Chief Business Officer.
Upcoming Clinical Milestones for Evorpacept’s Development Pipeline

Urothelial Carcinoma – Data from a Phase 1b ASPEN-07 clinical trial with PADCEV (enfortumab vedotin-ejfv) (ASCO: Embargo to lift on full abstract May 23, 2024; Poster to be presented on June 2, 2024)
Gastric/Gastroesophageal Junction ("GEJ") Cancer – Top line results from all 122 subjects in a Phase 2 randomized clinical trial of ASPEN-06 (July 2024)
Breast Cancer – Top line results from a Phase 1b I-SPY TRIAL with ENHERTU (fam-trastuzumab deruxtecan-nxki) (Q4 2024)
Head and Neck Squamous Cell Carcinoma – Top line results from a Phase 2 randomized clinical trial of ASPEN-03 with KEYTRUDA (Q4 2024/Q1 2025)
Head and Neck Squamous Cell Carcinoma – Top line results from a Phase 2 randomized clinical trial of ASPEN-04 with KEYTRUDA and chemotherapy (Q4 2024/Q1 2025)
Gastric/GEJ Cancer – Initiation of Phase 3 registrational randomized clinical trial for evorpacept (Q4 2024)
First Quarter 2024 Financial Results:

Cash, Cash Equivalents and Investments: Cash, cash equivalents and investments as of March 31, 2024, were $184.5 million. Subsequent to March 31, 2024, the Company issued additional shares of common stock under its at-the-market ("ATM") offering for approximately $26.2 million in net proceeds, after deducting commissions. The Company believes its cash, cash equivalents and investments, recent proceeds from sales under its ATM offering, along with the ability to draw down an additional $40 million of its term loan are sufficient to fund planned operations well into Q1 2026.

Research and Development ("R&D") Expenses: R&D expenses consist primarily of pre-clinical, clinical and manufacturing expenses related to the development of the Company’s current lead product candidate, evorpacept, and R&D employee-related expenses. These expenses for the three months ended March 31, 2024, were $31.7 million, compared to $24.8 million for the prior-year period. The $6.9 million increase was primarily attributable to increased clinical development costs from an increased number of active trials and patient enrollment as well as manufacturing of clinical trial materials to support a higher number of active clinical trials and future expected patient enrollment related to evorpacept, an increase of in personnel and related costs primarily driven by headcount growth, an increase in stock-based compensation expense related to a reclassification of stock-based compensation from G&A to R&D because of the change in roles for our former Chief Executive Officer who transitioned to the Chief Scientific Officer in September 2023, and an increase in other research costs primarily due to a development milestone payment related to ScalmiBio.

General and Administrative ("G&A") Expenses: G&A expenses consist primarily of administrative employee-related expenses, legal and other professional fees, patent filing and maintenance fees, and insurance. These expenses for the three months ended March 31, 2024, were $6.0 million, compared to $7.4 million for the prior year period. The $1.4 million decrease was primarily due to lower stock-compensation expense related to a reclassification of stock-based compensation which increased R&D stock-based compensation as detailed under R&D expenses.
Net loss: GAAP net loss was $35.6 million for the three months ended March 31, 2024, or ($0.71) per basic and diluted share, as compared to a GAAP net loss of $30.2 million for the three months ended March 31, 2023, or ($0.74) per basic and diluted share. Non-GAAP net loss was $28.5 million for the three months ended March 31, 2024, as compared to a non-GAAP net loss of $23.8 million for the three months ended March 31, 2023. A reconciliation of GAAP to non-GAAP financial results can be found at the end of this news release.