Nuvalent Announces Publication in Molecular Cancer Therapeutics Reinforcing Rational Molecular Design of Zidesamtinib as a Novel ROS1-Selective Inhibitor

On April 29, 2025 Nuvalent, Inc. (Nasdaq: NUVL), a clinical-stage biopharmaceutical company focused on creating precisely targeted therapies for clinically proven kinase targets in cancer, reported the publication of a manuscript in Molecular Cancer Therapeutics, a journal of the American Association for Cancer Research (AACR) (Free AACR Whitepaper), which supports the rational molecular design of zidesamtinib, its novel and selective ROS1 inhibitor (Press release, Nuvalent, APR 29, 2025, https://investors.nuvalent.com/2025-04-29-Nuvalent-Announces-Publication-in-Molecular-Cancer-Therapeutics-Reinforcing-Rational-Molecular-Design-of-Zidesamtinib-as-a-Novel-ROS1-Selective-Inhibitor [SID1234652317]). Zidesamtinib is currently being evaluated in the ongoing ARROS-1 Phase 1/2 trial for patients with advanced ROS1-positive non-small cell lung cancer (NSCLC) and other solid tumors, which is designed with registrational intent for tyrosine kinase inhibitor (TKI) pre-treated and TKI-naïve patients with advanced ROS1-positive NSCLC.

Schedule your 30 min Free 1stOncology Demo!
Discover why more than 1,500 members use 1stOncology™ to excel in:

Early/Late Stage Pipeline Development - Target Scouting - Clinical Biomarkers - Indication Selection & Expansion - BD&L Contacts - Conference Reports - Combinatorial Drug Settings - Companion Diagnostics - Drug Repositioning - First-in-class Analysis - Competitive Analysis - Deals & Licensing

                  Schedule Your 30 min Free Demo!

The publication, entitled "Zidesamtinib Selective Targeting of Diverse ROS1 Drug-Resistant Mutations," is published online and can be accessed here: View Source

"Zidesamtinib was specifically designed with the goal of addressing the combined medical needs of treating tumors that have developed resistance, treating brain metastases and avoiding off-target adverse events. Structural studies play a critical role in the development and optimization of novel therapeutics, particularly when aiming to solve for multiple, and at times competing, challenges. To date, structural studies for ROS1-positive cancers have been hindered by a lack of ROS1 G2032R crystal structures, despite G2032R being the most commonly occurring ROS1 resistance mutation," said first author Anupong Tangpeerachaikul, Ph.D., Director, Biology at Nuvalent. "With this publication in Molecular Cancer Therapeutics, we are pleased to have shared what is, to our knowledge, the first structure of ROS1 G2032R, or any ROS1 mutation, offering a framework for understanding ROS1 TKI activity against these important drivers of disease progression. This structure further illustrates the intentional design of zidesamtinib and adds to the growing body of preclinical data supporting its ROS1-selective and TRK-sparing design."

The manuscript explores the activity of zidesamtinib and other approved or investigational ROS1 TKIs at clinically relevant concentrations against ROS1 resistance mutations, including the most commonly occurring resistance mutation, ROS1 G2032R, in preclinical mutagenesis screens and an intracranial ROS1 G2032R xenograft model. Findings presented in the manuscript show that, at clinically relevant concentrations, zidesamtinib suppressed on-target resistance in ENU mutagenesis screens simulating first-line and later-line treatment and inhibited ROS1 G2032R brain tumors more effectively than the other ROS1 TKIs evaluated. This favorable preclinical activity suggests the potential for zidesamtinib to delay tumor progression, both peripherally and intracranially.

In addition, the manuscript details the first crystal structure of ROS1 G2032R in complex with zidesamtinib, which further supports zidesamtinib’s molecular design and provides structural insights into how the ROS1 G2032R mutation affects TKI binding. Zidesamtinib was designed with the goal of being active against ROS1 and ROS1 resistance mutations while avoiding the inhibition of the structurally related tropomyosin receptor kinase (TRK) family in the central nervous system (CNS), which has been associated with neurological adverse events that can be dose limiting. The crystal structure elucidates zidesamtinib’s preclinical affinity for ROS1 G2032R and selectivity for ROS1 over TRK.

The company expects to report pivotal clinical data for TKI pre-treated patients with advanced ROS1-positive NSCLC from the ARROS-1 Phase 1/2 trial in the first half of 2025 in support of an anticipated New Drug Application submission by mid-year 2025, with an initial target indication of TKI pre-treated patients with advanced ROS1-positive NSCLC.

About Zidesamtinib
Zidesamtinib is a novel brain-penetrant ROS1-selective inhibitor created with the aim to overcome limitations observed with currently available ROS1 inhibitors. Zidesamtinib is designed to remain active in tumors that have developed resistance to currently available ROS1 inhibitors, including tumors with treatment-emergent ROS1 mutations such as G2032R. In addition, zidesamtinib is designed for central nervous system (CNS) penetrance to improve treatment options for patients with brain metastases, and to avoid inhibition of the structurally related tropomyosin receptor kinase (TRK) family. Together, these characteristics have the potential to avoid TRK-related CNS adverse events seen with dual TRK/ROS1 inhibitors and to drive deep, durable responses for patients across all lines of therapy. Zidesamtinib has received breakthrough therapy designation for the treatment of patients with ROS1-positive metastatic non-small cell lung cancer (NSCLC) who have been previously treated with 2 or more ROS1 tyrosine kinase inhibitors and orphan drug designation for ROS1-positive NSCLC.

Nouscom Presents Positive Final Results from Completed Phase Ib/II Study of Neoantigen Immunotherapy NOUS-209 at AACR 2025, Demonstrating a Highly Potent and Durable Immune Response in Lynch Syndrome Carriers

On April 29, 2025 Nouscom, a clinical-stage biotech company developing next-generation neoantigen-targeted off-the-shelf and personalized cancer immunotherapies, reported complete safety and immunogenicity results from a Phase Ib/II study evaluating NOUS-209 in individuals with Lynch Syndrome (LS) at the American Association for Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting 2025 (Press release, NousCom, APR 29, 2025, View Source;utm_medium=rss&utm_campaign=nouscom-presents-positive-final-results-from-completed-phase-ib-ii-study-of-neoantigen-immunotherapy-nous-209-at-aacr-2025-demonstrating-a-highly-potent-and-durable-immune-response-in-lynch-syndrome [SID1234652315]). The study found that NOUS-209 monotherapy was safe, well-tolerated and induced potent, broad and durable immune responses in all LS carriers evaluated.

Schedule your 30 min Free 1stOncology Demo!
Discover why more than 1,500 members use 1stOncology™ to excel in:

Early/Late Stage Pipeline Development - Target Scouting - Clinical Biomarkers - Indication Selection & Expansion - BD&L Contacts - Conference Reports - Combinatorial Drug Settings - Companion Diagnostics - Drug Repositioning - First-in-class Analysis - Competitive Analysis - Deals & Licensing

                  Schedule Your 30 min Free Demo!

LS is a common inherited condition that significantly increases a person’s risk of developing microsatellite instability (MSI)-associated cancers over their lifetime. Managing LS is limited to frequent screenings or elective organ removal surgery. NOUS-209 is an investigational off-the-shelf cancer immunotherapy that targets tumors with mismatch repair deficiency (dMMR) and/or MSI. These tumors produce markers known as frameshift peptide neoantigens (FSPs). NOUS-209 is a pioneering approach to cancer interception comprising two proprietary viral vectors that deliver 209 shared FSP neoantigens and train the immune system to recognize and attack cancerous and pre-cancerous cells before tumors can fully develop.

The completed Phase Ib/II trial evaluated safety and immunogenicity in 45 LS carriers demonstrated;

Favorable Safety Profile: NOUS-209 was well tolerated, with no serious treatment-related adverse events across the entire study population.
Potent and Durable Immunogenicity Profile: Neoantigen-specific T cell responses were reported in 100% of evaluable participants (n=37). Responses were robust, reaching a mean of ~1100 interferon-gamma (IFN-γ) spot forming cells (SFC) per million of Peripheral Blood Mononuclear Cells (PBMCs). Immune responses were durable, with tumor-specific T cells detected after 1 year in >85% of participants (n=33).
Broad, Polyspecific T Cell Response: Immune responses were confirmed against 115 different FSP neoantigens to date, validating the ability of NOUS-209 to elicit broad polyspecific immune responses.
Desired T Cell Phenotype: NOUS-209 induced neoantigen-specific CD8 and CD4 T cells, exhibiting an effector memory phenotype associated with long-lived immunity critical for sustained surveillance and ability to eliminate emerging tumor cells.
Demonstration of Tumor Cell Killing: T cells induced by NOUS-209 were shown to directly kill tumor cells ex vivo, confirming functional anti-cancer activity.
Target Validation in LS-Associated Premalignant and Cancer Lesions: The vast majority of the immunogenic FSP neoantigens were shown to be present in both pre-cancerous as well as cancer lesions from independent cohorts of LS carriers.
These data support the further clinical development of NOUS-209 as a monotherapy in LS carriers. Following positive Type B and C meetings with the US Food and Drug Administration (FDA), Nouscom has a clear path forward for the advancement of NOUS-209 to a potentially registration-enabling Phase 2/3 clinical study for cancer interception in those living with LS.

"Currently, individuals with Lynch Syndrome rely on frequent screenings, such as colonoscopies, to manage their markedly increased risk of developing cancer. These latest data are a step toward a completely new approach – leveraging the immune system for cancer interception," said the study’s principal investigator, Eduardo Vilar-Sanchez, M.D., Ph.D., Professor of Clinical Cancer Prevention at The University of Texas MD Anderson Cancer Center. "NOUS-209 has shown clear evidence that the T cells it activates can persist over time, effectively target and kill tumor cells and develop into memory cells that support long-term immune protection. These findings support NOUS-209’s potential as a cancer interception strategy."

"Nouscom’s proprietary viral vector platform is uniquely positioned to deliver rapid, potent and broad immune activation against a large number of shared neoantigens, with minimal reactogenicity and durable immune responses," said Dr. Elisa Scarselli, Chief Scientific Officer of Nouscom. "These compelling Phase Ib/II data further reinforce our confidence in NOUS-209 monotherapy to safely and effectively prime the immune system to recognize and intercept pre-malignant and cancer lesions before they progress into tumors in LS carriers."

Dr. Marina Udier, Chief Executive Officer of Nouscom, added: "We are enormously pleased with these robust Phase Ib/II data and look to progress toward a potentially registration-enabling Phase 2/3 clinical study for cancer interception in LS. We remain deeply committed to advancing NOUS-209 and bring better solutions for people living with LS who urgently need and deserve a better way to manage their cancer risk."

The study was led by researchers at MD Anderson, in collaboration with the Cancer Prevention Clinical Trials Network and sponsored by the National Cancer Institute (grant # UG1CA242609) of the National Institutes of Health. These data were presented during the Hot Topics in Cancer Prevention session, and the abstract is available on the AACR (Free AACR Whitepaper) website here.

Moleculin Announces New Pre-Clinical Data for Annamycin Demonstrating Market Expansion Potential Including Treatment for Pancreatic Cancer

On April 29, 2025 Moleculin Biotech, Inc., (Nasdaq: MBRX) ("Moleculin" or the "Company"), a late-stage pharmaceutical company with a broad portfolio of drug candidates targeting hard-to-treat cancers and viral infections, reported that an abstract and poster presentation regarding the Company’s next-generation anthracycline, Annamycin, was presented at the American Association for Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting 2025, on April 28, 2025, at the McCormick Place Convention Center in Chicago, IL (Press release, Moleculin, APR 29, 2025, View Source [SID1234652314]).

Schedule your 30 min Free 1stOncology Demo!
Discover why more than 1,500 members use 1stOncology™ to excel in:

Early/Late Stage Pipeline Development - Target Scouting - Clinical Biomarkers - Indication Selection & Expansion - BD&L Contacts - Conference Reports - Combinatorial Drug Settings - Companion Diagnostics - Drug Repositioning - First-in-class Analysis - Competitive Analysis - Deals & Licensing

                  Schedule Your 30 min Free Demo!

"The case for expanding the potential markets for Annamycin continues to get stronger," said Walter Klemp, Chairman and CEO of Moleculin. "In an environment where more and more cancer treatment regimens are combinations of two or more drugs, it is encouraging to see that Annamycin appears capable of generating synergistic results with so many commonly used drugs. The latest research continues to support our view that, in addition to hematological malignancies, solid cancers including sarcoma and pancreatic cancer also represent important expansion opportunities for Annamycin. These findings may help expand the clinical use of Annamycin and consequently make our drug candidate even more attractive to prospective future partners. With five previous or current investigator-initiated clinical trials supporting development of our drug candidates, we believe that our next investigator-initiated trials could be Annamycin for the treatment of pancreatic cancer or advance soft tissue sarcomas."

The study, presented in poster form, was designed to assess the efficacy of Annamycin in combination with approved anticancer agents in order to identify novel potentially highly efficacious clinical applications of Annamycin alone and with a therapeutic partner. Annamycin in its non-liposomal form (free drug; in vitro) and Liposomal Annamycin (L-ANN; in vivo) were tested in combination with selected US Food and Drug Administration (FDA) approved drugs. Usually, the most efficacious drug combinations from the in vitro studies were then tested using well developed in vivo models of leukemia and solid tumors, including sarcoma and pancreatic cancer.

It should be noted that in a separate set of previous experiments, Annamycin activity was tested in vitro, and appeared to be highly active, against drug resistant cell lines, including cells resistant to cytarabine and venetoclax.

The research shown in the AACR (Free AACR Whitepaper) poster, described below, demonstrates that Annamycin is potentially a highly versatile drug capable of working synergistically with numerous mechanistically different FDA approved anticancer agents both in vitro and in vivo. Ongoing studies are working towards identifying new efficacious clinical applications of L-ANN drug combinations with the long-term goal of developing novel therapeutic strategies for treatment resistant cancers.

Details of the poster presentation are as follows:

Title: Combining Annamycin, a Non-cardiotoxic Potent Topo II Poison, with Azacitidine, Cytarabine, Gemcitabine, Ifosfamide, Trabectedin, or Vincristine to Synergize Anticancer Effects and Identify Potential Clinical Applications
Track: Experimental and Molecular Therapeutics
Session: PO.ET02.03. Drug Combination Strategies for Cancer Treatment
Abstract Number: 1683/ 14
Presenter: Waldemar Priebe, Ph.D., Department of Experimental Therapeutics, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center

For more information, visit the AACR (Free AACR Whitepaper) Annual Meeting website.

Microbiotica reveals novel mechanisms showing how the microbiome can improve immunotherapy response based on MB097, a clinical-stage drug candidate being evaluated in combination with KEYTRUDA® (pembrolizumab) in patients with advanced melanoma

On April 29, 2025 Microbiotica, a clinical-stage biopharma company developing a pipeline of oral precision microbiome medicines called live biotherapeutic products (LBPs), reported new data on the mechanism of action of MB097 at the American Association for Cancer Research (AACR) (Free AACR Whitepaper) annual meeting held in Chicago, April 25-30 (Press release, Microbiotica, APR 29, 2025, View Source [SID1234652313]). MB097 is an LBP in development as a co-therapy for immune checkpoint inhibitors (CPI) such as MSD’s (Merck & Co., Inc., Rahway, NJ, USA) anti-PD-1 therapy, KEYTRUDA (pembrolizumab).

Schedule your 30 min Free 1stOncology Demo!
Discover why more than 1,500 members use 1stOncology™ to excel in:

Early/Late Stage Pipeline Development - Target Scouting - Clinical Biomarkers - Indication Selection & Expansion - BD&L Contacts - Conference Reports - Combinatorial Drug Settings - Companion Diagnostics - Drug Repositioning - First-in-class Analysis - Competitive Analysis - Deals & Licensing

                  Schedule Your 30 min Free Demo!

The composition of a patient’s intestinal microbiome is known to impact the response to immunotherapies, most noticeably CPI, but the mechanisms are poorly understood. MB097 comprises nine different species of gut commensal bacteria, all linked to positive CPI response in multiple clinical studies. Microbiotica has developed in vitro human systems using primary immune cells to investigate how gut bacteria modulate the immune response to cancer. These assays have demonstrated that three of the MB097 strains induce dendritic cells to produce high levels of IL-12, which in turn stimulates Cytotoxic T Lymphocytes and NK cells with potent tumour cell killing activity. Dr Mat Robinson, Microbiotica’s Senior Vice-President Research, presented these novel findings in a poster entitled ‘Clinical response to immune checkpoint inhibitors in melanoma is associated with distinct gut bacterial species that promote anti-tumour immunity by different mechanisms’. The poster can be accessed here.

Dr Mat Robinson, Microbiotica’s SVP Research, said, "These exciting results start to unravel the complex biology of how gut commensal bacteria drive immune checkpoint inhibitor responses. The induction of dendritic cells to produce IL-12 complement the recently reported data showing that other MB097 strains release metabolites that enhance immune-mediated cancer cell killing. Together, these findings demonstrate that the different strains within MB097 can interact with the immune system of cancer patients in multiple ways to enhance immunotherapy efficacy."

MB097 is being tested in an international Phase 1b clinical study, in combination with KEYTRUDA (pembrolizumab), MSD’s anti-PD-1 therapy, in patients with cutaneous melanoma who have failed to respond to immunotherapies. Data readout is expected by the end of 2025.

Incyte Reports 2025 First Quarter Financial Results and Provides Updates on Key Clinical Programs

On April 29, 2025 Incyte (Nasdaq:INCY) reported 2025 first quarter financial results, and provides a status update on the Company’s clinical development portfolio (Press release, Incyte, APR 29, 2025, View Source [SID1234652312]).

Schedule your 30 min Free 1stOncology Demo!
Discover why more than 1,500 members use 1stOncology™ to excel in:

Early/Late Stage Pipeline Development - Target Scouting - Clinical Biomarkers - Indication Selection & Expansion - BD&L Contacts - Conference Reports - Combinatorial Drug Settings - Companion Diagnostics - Drug Repositioning - First-in-class Analysis - Competitive Analysis - Deals & Licensing

                  Schedule Your 30 min Free Demo!

"The double-digit revenue growth in the first quarter driven by the continued growth of Jakafi and Opzelura and the recent launch of Niktimvo, puts us on track to achieve our full year objectives," said Hervé Hoppenot, Chief Executive Officer, Incyte. "We also continued to advance our innovative pipeline, which will be critical for driving long-term growth. The positive Phase 3 results for povorcitinib in hidradenitis suppurativa in addition to the proof-of-concept in chronic spontaneous urticaria, strengthens the potential of povorcitinib as a multibillion-dollar product addressing patient needs across the five indications currently in development."
Key Commercial Highlights
Jakafi(ruxolitinib):
Net product revenues for the first quarter 2025 of $709 million (+24% Y/Y):
▪Net product revenue growth in the first quarter of 2025 versus the same quarter in the prior year, was driven by an increase in paid demand, the positive impact of the Part D redesign under the Inflation Reduction Act, partially offset by growth in 340B, and less de-stocking compared to the first quarter of 2024. Jakafi inventory levels were within normal range at the end of the first quarter of 2025.
1

Opzelura(ruxolitinib) cream:
Net product revenues for the first quarter 2025 of $119 million (+38% Y/Y):
▪U.S. net product revenue of $95 million in the first quarter of 2025 increased 20% compared to the first quarter of 2024 driven by patient demand and refills in both atopic dermatitis (AD) and vitiligo, partially offset by a reduction in channel inventory. Opzelura inventory levels were within normal range at the end of the first quarter of 2025.
▪Ex-U.S. net product revenues of $23 million in the first quarter of 2025 were primarily driven by continued growth in sales in Germany and France, as well as the recent launches in Italy and Spain.
Pipeline Updates
Myeloproliferative Neoplasms (MPNs) and Graft-Versus-Host Disease (GVHD) – key highlights
▪The Phase 1 studies evaluating mutCALR in myelofibrosis (MF) and essential thrombocythemia (ET) and JAK2V617Fi in MF are enrolling patients. Initial proof of concept data for both studies are anticipated in 2025.
▪A Phase 2 trial evaluating axatilimab (Niktimvo) in combination with ruxolitinib (Jakafi) in patients with newly diagnosed chronic GVHD is ongoing and enrolling patients.
▪A Phase 3 trial evaluating axatilimab in combination with corticosteroids in patients with newly diagnosed chronic GVHD is ongoing and enrolling patients.
MPN and GVHD Programs Indication and status
Ruxolitinib XR (QD)
(JAK1/JAK2) Myelofibrosis, polycythemia vera and GVHD
Ruxolitinib + INCB57643
(JAK1/JAK2 + BETi) Myelofibrosis: Phase 2
Ruxolitinib + axatilimab1
(JAK1/JAK2 + anti-CSF-1R)
Chronic GVHD: Phase 2
Steroids + axatilimab1
(Steroids + anti-CSF-1R)
Chronic GVHD: Phase 3
INCA33989
(mutCALR) Myelofibrosis, essential thrombocythemia: Phase 1
INCB160058
(JAK2V617Fi) Myelofibrosis: Phase 1

1 Clinical development of axatilimab in GVHD conducted in collaboration with Syndax Pharmaceuticals.
Other Hematology/Oncology – key highlights
▪Incyte plans to initiate Phase 3 studies for its potentially first-in-class CDK2 inhibitor (INCB123667), in ovarian cancer in 2025 and is also evaluating INCB123667 in combination with other treatments.
▪The Phase 3 study evaluating tafasitamab as first-line treatment for DLBCL is ongoing. The Phase 3 data are anticipated in the second half of 2025.
▪The Phase 1 studies evaluating KRASG12D and TGFßR2×PD-1 in solid tumors are ongoing and enrolling patients. Initial proof of concept data for both studies are anticipated in the second half of 2025.
2

Heme/Oncology Programs Indication and status
Tafasitamab (Monjuvi/Minjuvi)
(CD19)
Relapsed or refractory diffuse large B-cell lymphoma (DLBCL): Phase 3 (B-MIND)
First-line DLBCL: Phase 3 (frontMIND)
Relapsed or refractory follicular lymphoma (FL): Phase 3 (inMIND)
Retifanlimab (Zynyz)1
(PD-1)
Squamous cell anal cancer (SCAC): Phase 3 (POD1UM-303)
Non-small cell lung cancer (NSCLC): Phase 3 (POD1UM-304)
MSI-high endometrial cancer: Phase 2 (POD1UM-101, POD1UM-204)
INCB123667
(CDK2i) Solid tumors with CCNE1 amplification/Cyclin E overexpression: Phase 1
INCB161734
(KRASG12D) Advanced metastatic solid tumors with a KRASG12D mutation: Phase 1
INCA33890
(TGFßR2×PD-1)2
Advanced or metastatic solid tumors: Phase 1

1 Retifanlimab licensed from MacroGenics.
2 Development in collaboration with Merus.
Inflammation and Autoimmunity (IAI) – key highlights
Ruxolitinib Cream
▪In March 2025, results from two Phase 3 studies (TRuE-PN1 and TRuE-PN2) evaluating ruxolitinib cream in patients with prurigo nodularis (PN) were presented in a late-breaking oral session at the American Academy of Dermatology annual meeting. The TRuE-PN1 study met the primary endpoint of a > 4-point improvement from baseline in Worst-Itch Numeric Rating Scale (WI-NRS4) at Week 12 and all key secondary endpoints. The TRuE-PN2 study did not reach statistical significance for the primary endpoint, resulting in the key secondary endpoints with nominal p-values. These key secondary endpoints still demonstrate positive trends for ruxolitinib cream 1.5% versus vehicle. These data will inform planned discussions with regulatory authorities on submission.
▪A Phase 3 trial for ruxolitinib cream in mild to moderate hidradenitis suppurativa (HS) is on track to initiate in the first half of 2025 following achieving alignment on the study design with FDA.
Povorcitinib (INCB54707)
▪In April 2025, Incyte announced positive topline results from the Phase 2 study evaluating povorcitinib in patients with chronic spontaneous urticaria (CSU). The study met the primary endpoint at Week 12 of change from baseline in the Urticaria Activity Score summed over 7 days (UAS7). Povorcitinib was well tolerated with no new safety signals observed. These data will support planned discussions with regulatory agencies and will be presented at an upcoming medical conference.
▪In March 2025, positive results from the Phase 3 studies (STOP-HS1 and STOP-HS2) of povorcitinib in patients with HS were presented and demonstrated that both studies met their primary endpoint of Hidradenitis Suppurativa Clinical Response (HiSCR) at Week 12 and at both tested doses (45mg and 75mg). In addition, at Week 12, patients treated with povorcitinib achieved deep levels of clinical response with a greater proportion achieving HiSCR75, reduction in flares, >3-point decrease in the Skin Pain Numeric Rating Scale (NRS) score and Skin Pain NRS30. Furthermore, povorcitinib demonstrated rapid onset of response, including rapid skin pain reduction. Additional longer-term data demonstrate that at Week 18, HiSCR rates continue to improve over Week 12 in patients treated with povorcitinib including high levels of response in those patients previously treated on placebo and crossed over to active povorcitinib treatment. These data support the planned regulatory submission of povorcitinib for the treatment of HS worldwide.
▪Two Phase 3 studies (STOP-PN1 and STOP-PN2) evaluating povorcitinib in patients with PN versus placebo are ongoing and enrolling patients.
▪A Phase 2 trial evaluating povorcitinib in asthma is ongoing and enrolling. Data are anticipated in the second half of 2025.
3

IAI and Dermatology Programs Indication and status
Ruxolitinib cream (Opzelura)1
(JAK1/JAK2)
Atopic dermatitis: Phase 3 pediatric study (TRuE-AD3)
Hidradenitis suppurativa: Phase 2; Phase 3 expected to initiate in 2025
Prurigo nodularis: Phase 3 (TRuE-PN1, TRuE-PN2)
Povorcitinib
(JAK1) Hidradenitis suppurativa: Phase 3 (STOP-HS1, STOP-HS2)
Vitiligo: Phase 3 (STOP-V1, STOP-V2)
Prurigo nodularis: Phase 3 (STOP-PN1, STOP-PN2)
Chronic spontaneous urticaria: Phase 2
Asthma: Phase 2
INCA034460
(anti-CD122) Vitiligo: Phase 1

1 Novartis’ rights to ruxolitinib outside of the United States under our Collaboration and License Agreement with Novartis do not include topical administration.
Other – key highlights
•In February 2025, Incyte and Genesis Therapeutics, Inc. (Genesis) entered into a strategic collaboration focused on the research, discovery and development of novel small molecule medicines, with an initial focus on collaboration targets selected by Incyte. Incyte receives exclusive rights to develop and commercialize collaboration products leveraged through Genesis’ GEMS artificial intelligence (AI) platform.
Other Program Indication and Phase
Zilurgisertib
(ALK2) Fibrodysplasia ossificans progressiva: Pivotal Phase 2

2025 First Quarter Financial Results
The financial measures presented in this press release for the three months ended March 31, 2025 and 2024 have been prepared by the Company in accordance with U.S. Generally Accepted Accounting Principles ("GAAP"), unless otherwise identified as a Non-GAAP financial measure. Management believes that Non-GAAP information is useful for investors, when considered in conjunction with Incyte’s GAAP disclosures. Management uses such information internally and externally for establishing budgets, operating goals and financial planning purposes. These metrics are also used to manage the Company’s business and monitor performance. The Company adjusts, where appropriate, for expenses in order to reflect the Company’s core operations. The Company believes these adjustments are useful to investors by providing an enhanced understanding of the financial performance of the Company’s core operations. The metrics have been adopted to align the Company with disclosures provided by industry peers.
Non-GAAP information is not prepared under a comprehensive set of accounting rules and should only be used in conjunction with and to supplement Incyte’s operating results as reported under GAAP. Non-GAAP measures may be defined and calculated differently by other companies in our industry.
As changes in exchange rates are an important factor in understanding period-to-period comparisons, Management believes the presentation of certain revenue results on a constant currency basis in addition to reported results helps improve investors’ ability to understand its operating results and evaluate its performance in comparison to prior periods. Constant currency information compares results between periods as if exchange rates had remained constant period over period. The Company calculates constant currency by calculating current year results using prior year foreign currency exchange rates and generally refers to such amounts calculated on a constant currency basis as excluding the impact of foreign exchange or being on a constant currency basis. These results should be considered in addition to, not as a substitute for, results reported in accordance with GAAP. Results on a constant currency basis, as the Company presents them, may not be comparable to similarly titled measures used by other companies and are not measures of performance presented in accordance with GAAP.
4

Financial Highlights
Financial Highlights
(unaudited, in thousands, except per share amounts)
Three Months Ended
March 31,
2025 2024
Total GAAP revenues $ 1,052,898 $ 880,889
Total GAAP operating income 205,168 91,898
Total Non-GAAP operating income 283,641 161,183
GAAP net income 158,203 169,548
Non-GAAP net income 229,459 132,719
GAAP basic EPS $ 0.82 $ 0.76
Non-GAAP basic EPS $ 1.18 $ 0.59
GAAP diluted EPS $ 0.80 $ 0.75
Non-GAAP diluted EPS $ 1.16 $ 0.58

Revenue Details
Revenue Details
(unaudited, in thousands)
Three Months Ended
March 31, %
Change
(as reported)
%
Change
(constant currency)1
2025 2024
Net product revenues:
Jakafi $ 709,412 $ 571,839 24 % NA
Opzelura 118,705 85,724 38 % 39 %
Iclusig 29,544 30,343 (3 %) — %
Pemazyre 18,440 17,676 4 % 6 %
Minjuvi/ Monjuvi 29,551 23,874 24 % 25 %
Niktimvo 13,613 — NM NA
Zynyz 3,009 467 544 % NA
Total net product revenues 922,274 729,923 26 % 27 %
Royalty revenues:
Jakavi 92,145 89,595 3 % 6 %
Olumiant 30,800 30,589 1 % 6 %
Tabrecta 6,413 5,234 23 % NA
Other 1,266 548 131 % NM
Total royalty revenues 130,624 125,966 4 %
Total net product and royalty revenues 1,052,898 855,889 23 %
Milestone and contract revenues — 25,000 — % — %
Total GAAP revenues $ 1,052,898 $ 880,889 20 %

NM = not meaningful
NA = not applicable
1 Percentage change in constant currency is calculated using 2024 foreign exchange rates to recalculate 2025 results.
5

Product and Royalty Revenues Total net product and royalty revenues for the quarter ended March 31, 2025 increased 23% over the prior year comparative period. Total net product revenues for the quarter ended March 31, 2025 increased 26% over the prior year comparative period primarily driven by the following:
•Jakafi net product revenue increased 24% versus the prior year comparable period, driven by an increase in paid demand of 10% reflecting continued demand growth in all indications, the positive impact of the Part D redesign under the Inflation Reduction Act, partially offset by growth in 340B, and 7% favorable impact from less de-stocking compared to the first quarter of 2024. Jakafi inventory levels were within normal range at the end of the first quarter of 2025.
•Opzelura net product revenue increased 38% due to continued growth in new patient starts and refills in the U.S. with U.S. paid demand up 24% versus the first quarter of 2024, partially offset by a reduction in channel inventory, and increased contribution from ex-U.S. driven by continued uptake in Germany and France, as well as growth from the recent launches in Italy and Spain. Opzelura inventory levels were within normal range at the end of the first quarter of 2025.
•Minjuvi/Monjuvi net product revenue increased 24% as a result of the first quarter of 2025 reflecting three months of net product revenues in the U.S., compared to two months of net product revenue in the first quarter of 2024 due to the acquisition of U.S. rights to Monjuvi, which closed in February 2024.
•Niktimvo net product revenue driven by the commercial launch of the product during the first quarter of 2025.
Operating Expenses
Operating Expense Summary
(unaudited, in thousands)
Three Months Ended
March 31, %
Change
2025 2024
GAAP cost of product revenues $ 73,188 $ 60,956 20 %
Non-GAAP cost of product revenues1
66,945 54,959 22 %
GAAP research and development 437,279 429,260 2 %
Non-GAAP research and development2
400,020 388,437 3 %
GAAP selling, general and administrative 325,691 300,256 8 %
Non-GAAP selling, general and administrative3
302,292 277,335 9 %
GAAP loss (gain) on change in fair value of acquisition-related contingent consideration 11,572 (456) NM
Non-GAAP loss (gain) on change in fair value of acquisition-related contingent consideration — — — %
GAAP (profit) and loss sharing under collaboration agreements — (1,025) — %

1 Non-GAAP cost of product revenues excludes the amortization of licensed intellectual property for Iclusig relating to the acquisition of the European business of ARIAD Pharmaceuticals, Inc. and the cost of stock-based compensation.
2 Non-GAAP research and development expenses exclude the cost of stock-based compensation, MorphoSys transition costs, and Escient severance payments.
3 Non-GAAP selling, general and administrative expenses exclude the cost of stock-based compensation, MorphoSys transition costs, and Escient severance payments.
Cost of product revenues GAAP and Non-GAAP cost of product revenues for the quarter ended March 31, 2025 increased 20% and 22% respectively, compared to the same period in 2024 primarily due to increased royalty expense.
6

Research and development expenses GAAP and Non-GAAP research and development expense for the quarter ended March 31, 2025 increased 2% and 3%, respectively, compared to the same period in 2024, reflecting continued investment in our late stage development assets and timing of certain expenses.
Selling, general and administrative expenses GAAP and Non-GAAP selling, general and administrative expenses for the quarter ended March 31, 2025 increased 8% and 9%, respectively, compared to the same period in 2024 primarily due to timing of consumer marketing activities and of certain other expenses.