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Celcuity (Nasdaq: CELC) secures FDA approval for REVTORPYK in HR+/HER2- breast cancer

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(Neutral)
Filing Sentiment
(Neutral)
Form Type
8-K/A

Rhea-AI Filing Summary

Celcuity Inc. reports that the U.S. FDA has approved REVTORPYK (gedatolisib), a pan-PI3K and mTORC1/2 inhibitor, for treatment of adult patients with HR+/HER2-, PIK3CA wild-type locally advanced or metastatic breast cancer after progression on at least one line of endocrine therapy in the metastatic setting.

The approval is based on the Phase 3 VIKTORIA-1 trial, where REVTORPYK plus palbociclib and fulvestrant achieved median progression-free survival of 9.3 months vs 2.0 months with fulvestrant alone and substantially higher response rates. Celcuity anticipates commercial launch in late Q3 2026 and plans to submit a supplemental NDA in Q3 2026 for PIK3CA-mutated disease. The current amendment primarily corrects an omitted presentation slide and related webcast description.

Positive

  • FDA approval of REVTORPYK as the first pan-PI3K, mTORC1/2 inhibitor for HR+/HER2-, PIK3CA wild-type metastatic breast cancer, creating a new commercial product for Celcuity.
  • Phase 3 VIKTORIA-1 showed median PFS of 9.3 vs 2.0 months for the REVTORPYK triplet vs fulvestrant, indicating strong efficacy in the approved population.
  • Celcuity anticipates commercial launch in late Q3 2026, providing a near-term revenue opportunity and confirming readiness to commercialize its first approved therapy.

Negative

  • None.
Item 7.01 Regulation FD Disclosure Disclosure
Material non-public information disclosed under Regulation Fair Disclosure, often investor presentations or guidance.
Item 8.01 Other Events Other
Voluntary disclosure of events the company deems important to shareholders but not covered by other items.
Item 9.01 Financial Statements and Exhibits Exhibits
Financial statements, pro forma financial information, and exhibit attachments filed with this report.
Triplet median PFS 9.3 months vs 2.0 months Median progression-free survival for REVTORPYK + palbociclib + fulvestrant vs fulvestrant in VIKTORIA-1 PIK3CA wild-type cohort
Triplet hazard ratio HR=0.24; 95% CI: 0.17-0.35 Risk of disease progression or death for REVTORPYK triplet vs fulvestrant; p<0.0001
Triplet objective response rate 32% vs 1% Objective response rate for REVTORPYK triplet vs fulvestrant in VIKTORIA-1 PIK3CA wild-type cohort
Triplet median DOR 17.5 months Median duration of response for REVTORPYK triplet in VIKTORIA-1
Doublet median PFS 7.4 months vs 2.0 months Median progression-free survival for REVTORPYK + fulvestrant vs fulvestrant; HR=0.33; p<0.0001
Stomatitis incidence (triplet) 72% (Grade 3: 22%) Frequency of stomatitis with REVTORPYK plus fulvestrant and palbociclib
Hyperglycemia incidence (doublet) 57% (Grade 3: 1.8%) Increased fasting glucose with REVTORPYK in combination with fulvestrant
Commercial launch timing Late Q3 2026 Celcuity’s anticipated commercial launch timing for REVTORPYK
progression free survival medical
"In the VIKTORIA-1 trial, median progression free survival (“PFS”) with the REVTORPYK triplet was 9.3 months"
Progression free survival is the length of time during and after a treatment when a disease, such as cancer, does not get worse or spread. It is an important measure because longer periods of stability can indicate that a treatment is effectively controlling the condition. For investors, it provides insight into the potential durability and success of a therapy or medication.
objective response rate medical
"The objective response rate (“ORR”) of the REVTORPYK triplet was 32% compared to 1% with fulvestrant"
The objective response rate (ORR) is the percentage of patients in a clinical trial whose tumors measurably shrink or disappear according to preset rules. Investors use it as a quick, objective signal of a drug’s ability to produce a clear treatment effect—like counting how many plants visibly respond after applying a new fertilizer—and higher ORR can improve odds of regulatory approval, commercial success, and company valuation.
Phase 3 VIKTORIA-1 trial medical
"The approval of REVTORPYK is based on positive clinical results from the PIK3CA wild-type cohort of the Phase 3 VIKTORIA-1 trial"
supplemental New Drug Application regulatory
"The Company plans to submit in Q3 2026 a supplemental New Drug Application (“sNDA”) to the FDA for REVTORPYK"
A supplemental new drug application is a request submitted to regulatory authorities to make changes to an existing approved medication, such as adding new uses, strengths, or formulations. For investors, it signals that a pharmaceutical company is seeking approval for new product developments or expanded applications, which can impact the company's future sales, market potential, and stock value.
metastatic castration-resistant prostate cancer medical
"A Phase 1/2 clinical trial, CELC-G-201, evaluating gedatolisib in combination with darolutamide in patients with metastatic castration-resistant prostate cancer"
An advanced form of prostate cancer that has spread beyond the prostate to other parts of the body (metastatic) and no longer responds to treatments that lower male hormones designed to starve the tumor (castration-resistant). It matters to investors because it defines a high unmet medical need with limited treatment options, so clinical trial results, new drug approvals, or safety setbacks can sharply change the valuation and prospects of companies working in this area; think of it as a weed that has spread and become resistant to the usual weedkiller.
embryo-fetal toxicity medical
"Embryo-Fetal Toxicity: Based on its mechanism of action, REVTORPYK can cause fetal harm when administered to a pregnant woman"
Embryo-fetal toxicity is harm a drug or chemical causes to a developing embryo or fetus, including death, birth defects, slowed growth, or lasting functional problems when exposure happens during pregnancy. For investors, evidence of this kind of harm can reshape a product’s path like a safety recall for a consumer item—triggering stricter testing, limited use, stronger warnings, trial delays, smaller markets, or legal exposure that affect a company’s approval chances and future revenue.
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FAQ

What major event did Celcuity (CELC) disclose regarding REVTORPYK?

Celcuity disclosed that the FDA approved REVTORPYK (gedatolisib) for adult patients with HR+/HER2-, PIK3CA wild-type locally advanced or metastatic breast cancer after progression on at least one endocrine therapy in the metastatic setting, establishing its first commercial oncology product.

What were the key VIKTORIA-1 trial results supporting Celcuity’s (CELC) FDA approval?

In VIKTORIA-1, the REVTORPYK triplet achieved median PFS of 9.3 months vs 2.0 months with fulvestrant (HR=0.24; p<0.0001) and an objective response rate of 32% vs 1%, with median duration of response of 17.5 months in PIK3CA wild-type patients.

When does Celcuity (CELC) expect to commercially launch REVTORPYK?

Celcuity states it anticipates commercial launch of REVTORPYK in late Q3 2026. Until launch, eligible patients may access the drug through Celcuity’s expanded access program and a comprehensive patient support program is being designed to promote access.

What additional regulatory plans did Celcuity (CELC) outline for REVTORPYK?

Celcuity plans to submit a supplemental New Drug Application (sNDA) in Q3 2026 for HR+/HER2-, PIK3CA-mutated metastatic breast cancer based on the mutant cohort of VIKTORIA-1, and then submit VIKTORIA-1 data for marketing authorization to regulators outside the U.S.

What important safety information about REVTORPYK did Celcuity (CELC) highlight?

Celcuity highlighted risks including stomatitis (up to 72% of triplet patients), rash, hyperglycemia (fasting glucose increases up to 57%), and embryo-fetal toxicity. The company recommends monitoring labs, prophylactic mouthwash, sun protection, contraception, and breastfeeding restrictions.

What is REVTORPYK’s mechanism of action according to Celcuity (CELC)?

REVTORPYK is described as a kinase inhibitor of class I PI3K isoforms (α, β, δ, γ) and mTOR complexes mTORC1 and mTORC2, leading to downstream inhibition of multiple effectors, including AKT, and comprehensive blockade of the PAM signaling pathway.
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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 

FORM 8-K/A

(Amendment No. 1)

 

CURRENT REPORT

 

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

 

Date of Report (Date of earliest event reported): July 14, 2026

 

Celcuity Inc.

(Exact name of Registrant as Specified in its Charter)

 

Delaware   001-38207   82-2863566

(State or Other Jurisdiction

of Incorporation)

 

(Commission

File Number)

 

(IRS Employer

Identification No.)

 

2800 Campus Drive, Suite 140

Minneapolis, Minnesota 55441

(Address of Principal Executive Offices and Zip Code)

 

(763) 392-0123

(Registrant’s telephone number, including area code)

 

Not Applicable

(Former Name or Former Address, if Changed Since Last Report)

 

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

 

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
   
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
   
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
   
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

 

Securities registered pursuant to Section 12(b) of the Act:

 

Title of each class   Trading Symbol(s)   Name of each exchange on which registered
Common Stock, $0.001 par value per share   CELC   The Nasdaq Stock Market LLC

 

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

 

Emerging growth company

 

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

 

 

 

 

 

 

EXPLANATORY NOTE

 

This Current Report on Form 8-K/A (this “Amendment”) is being filed to amend the Current Report on Form 8-K filed by Celcuity Inc. (the “Company”) with the Securities and Exchange Commission on July 15, 2026 (the “Original Report”). The purpose of filing this Amendment is to correct a clerical error that resulted in the omission of a slide in the presentation furnished as Exhibit 99.2 to the Original Report and to make certain conforming edits to the description of the live webcast and conference call. Exhibit 99.2 to this Amendment hereby supersedes Exhibit 99.2 previously furnished with the Original Report. Except as expressly set forth herein, no other changes have been made to the Original Report.

 

 

 

 

Item 7.01 Regulation FD Disclosure.

 

On July 14, 2026, the Company issued a press release announcing U.S. Food and Drug Administration (“FDA”) approval of REVTORPYK™ (gedatolisib) for the treatment of patients with hormone receptor positive (“HR+”), human epidermal growth factor receptor 2 negative (“HER2-”), locally advanced or metastatic breast cancer without a PIK3CA mutation detected following progression on or after treatment with at least one line of endocrine therapy in the metastatic setting. A copy of this press release is furnished as Exhibit 99.1 to this report and is incorporated herein by reference. The Company hosted a live webcast and conference call on July 14, 2026, at 4:30 p.m. CT to discuss the FDA approval of REVTORPYK. A copy of the presentation that was provided during the live webcast is furnished as Exhibit 99.2 to this report and is incorporated herein by reference.

 

The information in this Item 7.01, including the accompanying exhibits, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that Section. The information in this Item 7.01 shall not be incorporated into any filing pursuant to the Securities Act of 1933, as amended, or the Exchange Act, regardless of any general incorporation language in such filing.

 

Item 8.01 Other Events.

 

On July 14, 2026, the Company issued a press release announcing FDA approval of REVTORPYK for the treatment of patients with HR+/HER2-, locally advanced or metastatic breast cancer without a PIK3CA mutation detected following progression on or after treatment with at least one line of endocrine therapy in the metastatic setting. The Company anticipates commercial launch of REVTORPYK in late Q3 2026.

 

The Company plans to submit in Q3 2026 a supplemental New Drug Application (“sNDA”) to the FDA for REVTORPYK for the treatment of HR+/HER2-, PIK3CA mutated, locally advanced or metastatic breast cancer, following at least one line of endocrine therapy based on results from the mutant cohort of the Phase 3 VIKTORIA-1 trial.

 

Slide 18 of Exhibit 99.2 to this Current Report on Form 8-K is hereby incorporated by reference into this Item 8.01.

 

Forward-Looking Statements

 

This Current Report on Form 8-K (including the exhibit thereto) contains statements that constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995 relating to the potential therapeutic benefits of gedatolisib; the size, design and timing of the Company’s clinical trials; the Company’s interpretation of clinical trial data; the status and timing of the submission, and the FDA’s review, of the Company’s sNDA for gedatolisib, and for making comparable filings with other regulatory authorities outside the U.S.; the market opportunity for gedatolisib; the Company’s expectations regarding the timing of and its ability to commercialize gedatolisib; the Company’s strategy, marketing and commercialization plans, including the benefits of strategic decisions regarding studies and trials; other expectations with respect to gedatolisib, including subcutaneous formulations to support potential future indications for gedatolisib regimens; the Company’s anticipated use of cash; and the strength of its balance sheet. Words such as, but not limited to, “look forward to,” “believe,” “expect,” “anticipate,” “estimate,” “intend,” “confidence,” “encouraged,” “potential,” “plan,” “targets,” “likely,” “may,” “will,” “would,” “should” and “could,” and similar expressions or words identify forward-looking statements. The forward-looking statements included in this report are based on management’s current expectations and beliefs which are subject to a number of risks, uncertainties and factors, including that the Company’s topline clinical results are based on an ongoing analysis of efficacy and safety data and such data may change following a more comprehensive review of the data related to the clinical trial; unforeseen delays in the Company’s clinical trials or the submission, and FDA’s review of, its sNDA for gedatolisib; the Company’s ability to obtain regulatory approval of its sNDA and maintain regulatory approvals to commercialize gedatolisib, and the market acceptance of gedatolisib; the development of therapies and tools competitive with gedatolisib; and the Company’s ability to access capital upon favorable terms. In addition, all forward-looking statements are subject to other risks detailed in the Company’s Annual Report on Form 10-K for the year ended December 31, 2025, as such risks may be updated in its subsequent filings with the Securities and Exchange Commission. You are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof. All forward-looking statements are qualified in their entirety by these cautionary statements, and the Company undertakes no obligation to revise or update this report to reflect events or circumstances after the date hereof.

 

Item 9.01 Financial Statements and Exhibits.

 

(d) Exhibits

 

99.1   Press release dated July 14, 2026
99.2   Investor presentation dated July 14, 2026
104   Cover Page Interactive Data File (embedded within the Inline XBRL document)

 

 

 

 

SIGNATURES

 

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

 

Date: July 15, 2026

 

CELCUITY INC.  
     
By: /s/ Brian F. Sullivan  
  Brian F. Sullivan  
  Chief Executive Officer  

 

 

 

 

Exhibit 99.1

 

 

Celcuity Announces FDA Approval of REVTORPYK™ (gedatolisib) for the Treatment of HR+/HER2-, PIK3CA Wild-Type Locally Advanced or Metastatic Breast Cancer

 

- REVTORPYK is the first and only FDA-approved therapy that inhibits all class I PI3K isoforms (α, β, δ, γ) and mTOR complexes mTORC1 and mTORC2
   
- In the Phase 3 VIKTORIA-1 trial, REVTORPYK combined with palbociclib and fulvestrant and REVTORPYK combined with fulvestrant reduced the risk of disease progression or death by 76% and 67%, respectively, compared to fulvestrant among patients with PIK3CA wild-type advanced or metastatic breast cancer
   
- Celcuity to host webcast and conference call today Tuesday, July 14, 2026, at 5:30 p.m. EDT

 

MINNEAPOLIS, July 14, 2026 — Celcuity Inc. (Nasdaq: CELC), a biotechnology company focused on developing and commercializing targeted therapies for multiple solid tumor indications, today announced that the U.S. Food and Drug Administration (“FDA”) approved REVTORPYK™ (gedatolisib) for the treatment of patients with hormone receptor positive (“HR+”), human epidermal growth factor receptor 2 negative (“HER2-”), locally advanced or metastatic breast cancer without a PIK3CA mutation detected following progression on or after treatment with at least one line of endocrine therapy in the metastatic setting. REVTORPYK is the only inhibitor of class I PI3K isoforms (α, β, δ, γ) and mTOR complexes mTORC1 and mTORC2 to receive FDA approval.

 

“The PI3K/AKT/mTOR, or PAM, pathway is one of the most important targets in cancer, but comprehensively inhibiting it has stymied researchers and drug developers for nearly two decades,” said Brian Sullivan, CEO and co-founder of Celcuity. “REVTORPYK addressed this 20-year challenge by becoming the first pan-PI3K, mTORC1/2 inhibitor approved by the FDA. We are thankful for the opportunity to make this important new therapy available to patients with HR+/HER2- locally advanced or metastatic breast cancer.”

 

HR+/HER2- breast cancer is the most common subtype of breast cancer, accounting for approximately 70% of all breast cancers.1 Among this breast cancer subtype, approximately 60% have PIK3CA wild-type disease.2

 

“For patients with HR+/HER2- locally advanced or metastatic breast cancer, there is an urgent need for new treatment options that can meaningfully increase the likelihood of survival without disease progression or death,” said Sara Hurvitz, MD, Senior Vice President, Clinical Research Division, Fred Hutchinson Cancer Center, Smith Family Endowed Chair in Women’s Health and Professor and Head, Division of Hematology and Oncology, University of Washington, School of Medicine and co-principal investigator for the VIKTORIA-1 trial. “With the approval of REVTORPYK, oncologists now have an effective new treatment option for these patients.”

 

 
 

 

The approval of REVTORPYK is based on positive clinical results from the PIK3CA wild-type cohort of the Phase 3 VIKTORIA-1 trial, an open-label, global, randomized clinical trial evaluating the efficacy and safety of REVTORPYK plus fulvestrant, with or without palbociclib, for the treatment of patients with locally advanced or metastatic HR+/HER2- breast cancer following progression on or after CDK4/6 therapy and an aromatase inhibitor. In the VIKTORIA-1 trial, median progression free survival (“PFS”) with the REVTORPYK triplet (REVTORPYK plus palbociclib and fulvestrant) was 9.3 months versus 2.0 months with fulvestrant, an incremental improvement of 7.3 months (HR=0.24; 95% CI: 0.17-0.35; p<0.0001). The objective response rate (“ORR”) of the REVTORPYK triplet was 32% compared to 1% with fulvestrant and the median duration of response (“DOR”) was 17.5 months. For the REVTORPYK doublet (REVTORPYK plus fulvestrant), the median PFS was 7.4 months versus 2.0 months with fulvestrant, an incremental improvement of 5.4 months (HR=0.33; 95% CI: 0.24-0.48; p<0.0001). The ORR of the REVTORPYK doublet was 28% and the median DOR was 12.0 months. The median DOR was not determinable for fulvestrant because there was only one objective response.

 

“Today’s approval of REVTORPYK addresses a significant unmet need for the thousands of patients affected each year by HR+/HER2-, PIK3CA wild-type locally advanced or metastatic breast cancer whose disease has progressed after endocrine therapy,” said Igor Gorbatchevsky, MD, Chief Medical Officer of Celcuity. “We are deeply grateful to the patients and their caregivers, investigators and clinical study teams, and Celcuity team members who made this advancement possible.”

 

Celcuity anticipates commercial launch in late Q3 2026. Based on the company’s commitment to ensuring broad, affordable, and unrestricted patient access to REVTORPYK, we have designed a comprehensive patient support program. To make REVTORPYK available to patients prior to commercial launch, those who are eligible will be able to enroll in Celcuity’s expanded access program.

 

Celcuity plans to submit in Q3 2026 a supplemental New Drug Application (“sNDA”) to the FDA for REVTORPYK for the treatment of HR+/HER2-, PIK3CA mutated, locally advanced or metastatic breast cancer, following at least one line of endocrine therapy based on results from the mutant cohort of the Phase 3 VIKTORIA-1 trial. Results for this study were recently presented in a late-breaking abstract oral session at the 2026 American Society of Clinical Oncology (ASCO) Annual Meeting. Following the sNDA submission, Celcuity intends to submit VIKTORIA-1 data for marketing authorization of gedatolisib to other regulatory authorities around the world.

 

REVTORPYK is also being studied in the ongoing Phase 3 VIKTORIA-2 clinical trial incorporating two independent studies evaluating two separate patient cohorts with HR+/HER2- locally advanced or metastatic breast cancer who are treatment-naive in the advanced setting.

 

 
 

 

Webcast and Conference Call Information

 

The Celcuity management team will host a live webcast and conference call on Tuesday, July 14, 2026, at 5:30 p.m. EDT / 4:30 p.m. CDT to discuss the FDA approval of REVTORPYK. Those who would like to participate may access the live webcast here, or register in advance for the teleconference here. A replay of the webcast will be available on the Celcuity website.

 

About REVTORPYK (gedatolisib)

 

REVTORPYK is a kinase inhibitor of class I PI3K isoforms (α, β, δ, γ) and mTOR complexes mTORC1 and mTORC2, resulting in downstream inhibition of multiple effectors, including AKT.3.4.5

 

REVTORPYK is in development for the first-line treatment of HR+/HER2- locally advanced or metastatic breast cancer and for the second-line treatment of metastatic castration resistant prostate cancer.

 

Indication Statement

 

REVTORPYK (gedatolisib) is a kinase inhibitor indicated in combination with fulvestrant, with or without palbociclib, for the treatment of adult patients with hormone receptor (HR)-positive, human epidermal growth factor receptor 2 (HER2)-negative locally advanced or metastatic breast cancer without a PIK3CA mutation detected following progression on or after treatment with at least one line of endocrine therapy in the metastatic setting.

 

IMPORTANT SAFETY INFORMATION

 

WARNINGS AND PRECAUTIONS

 

Stomatitis: REVTORPYK can cause severe stomatitis, including ulcers and oral mucositis. Stomatitis occurred in 72% of patients treated with REVTORPYK with fulvestrant and palbociclib, including Grade 3 events in 22% of patients. Stomatitis occurred in 58% of patients treated with REVTORPYK with fulvestrant, including Grade 3 events in 12% of patients. Initiate a steroid-containing, alcohol-free mouthwash prior to starting treatment with REVTORPYK and continue prophylactically during treatment. Monitor patients for signs and symptoms of stomatitis. Withhold, reduce dose, or permanently discontinue REVTORPYK based on severity.

 

Dermatologic Adverse Reactions: REVTORPYK can cause severe rash. Rash occurred in 30% of patients treated with REVTORPYK in combination with fulvestrant and palbociclib, including Grade 3 events in 6% of patients. Rash occurred in 40% of patients treated with REVTORPYK with fulvestrant, including 5% of patients with Grade 3 events. Monitor patients for rash and infectious sequelae. Instruct patients to limit sun exposure during REVTORPYK treatment. Withhold, reduce dose, or permanently discontinue REVTORPYK based on severity.

 

 
 

 

Hyperglycemia: REVTORPYK can cause severe hyperglycemia. Monitor fasting glucose prior to initiating treatment with REVTORPYK and periodically during treatment. Monitor HbA1c level if clinically indicated. Increased fasting glucose occurred in 46% of patients receiving REVTORPYK in combination with fulvestrant and palbociclib (Grade 3: 0.9%) and in 57% of patients receiving REVTORPYK in combination with fulvestrant (Grade 3: 1.8%). The safety of REVTORPYK has not been established in patients with Type 1 or uncontrolled Type 2 diabetes mellitus. Patients with well-controlled Type 2 diabetes may require intensified antihyperglycemic therapy and close monitoring of fasting glucose. Manage hyperglycemia with antihyperglycemic medications as clinically indicated. Evaluate fastingblood glucose and HbA1c levels prior to starting and at regular intervals during treatment. Withhold, reduce dose, or permanently discontinue REVTORPYK based on severity.

 

Embryo-Fetal Toxicity: Based on its mechanism of action, REVTORPYK can cause fetal harm when administered to a pregnant woman. Advise pregnant women and females of reproductive potential of the potential risk to a fetus. Advise females of reproductive potential to use effective contraception during treatment with REVTORPYK and for 2 weeks after the last dose. Advise male patients with female partners of reproductive potential to use effective contraception during treatment and for 2 weeks after the last dose.

 

Advise women not to breastfeed during treatment with REVTORPYK and for 2 weeks after the last dose. When REVTORPYK is used in combination, advise patients to use effective contraception during treatment and for the longest post-treatment duration recommended in the Prescribing Information of any of the individual products. Verify the pregnancy status of females of reproductive potential prior to initiating treatment.

 

ADVERSE REACTIONS

 

REVTORPYK in Combination with Fulvestrant and Palbociclib: The most common (≥20%) adverse reactions, including laboratory abnormalities when given in combination with fulvestrant and palbociclib were decreased white blood cells, decreased neutrophils, decreased hemoglobin, decreased lymphocytes, stomatitis, nausea, decreased platelets, increased fasting glucose, fatigue, vomiting, rash, constipation, diarrhea, increased alanine aminotransferase (ALT), increased aspartate aminotransferase (AST), musculoskeletal pain, decreased sodium, and increased eosinophils.

 

REVTORPYK in Combination with Fulvestrant: The most common (≥20%) adverse reactions, including laboratory abnormalities when given in combination with fulvestrant were stomatitis, glucose increased, eosinophils increased, hemoglobin decreased, nausea, rash, ALT increased, fatigue, musculoskeletal pain, lymphocytes decreased, vomiting, AST increased, pruritus, and diarrhea.

 

USE IN SPECIFIC POPULATION

 

Lactation: Advise women not to breastfeed during treatment with REVTORPYK and for 2 weeks after the last dose. When used in combination, advise patients not to breastfeed during treatment and for the longest post-treatment duration recommended in the Prescribing Information of any of the individual products.

 

 
 

 

Infertility: Advise females and males of reproductive potential that REVTORPYK may impair fertility.

 

Please see full Prescribing Information, including Patient Information, for REVTORPYK.

 

You may report side effects related to Celcuity products to Celcuity Medical Information at 1-877-4-CELCUITY (1-877-423-5284) or to FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

 

© 2026 Celcuity Inc. All rights reserved. REVTORPYK and its logo are trademarks of Celcuity, Inc. US-G1B-26-023407/26

 

About Celcuity

 

Celcuity is a biotechnology company focused on developing and commercializing targeted therapies for the treatment of multiple solid tumor indications. The company’s first FDA-approved product is REVTORPYK (gedatolisib), a potent, pan-PI3K and mTORC1/2 inhibitor that comprehensively blockades the PAM pathway. Its mechanism of action and pharmacokinetic properties are differentiated from other currently approved and investigational therapies that target PI3Kα, AKT or mTORC1 alone or together. A Phase 3 clinical trial, VIKTORIA-1, evaluating gedatolisib in combination with fulvestrant with or without palbociclib in patients with HR+/HER2- locally advanced or metastatic breast cancer (“ABC”), supported FDA approval of REVTORPYK for use in patients without a PIK3CA mutation detected. Results for the PIK3CA mutant cohort of VIKTORIA-1 have been released. VIKTORIA-2 is an ongoing Phase 3 clinical trial incorporating two independent studies, Study 1 and Study 2, in two separate cohorts of patients with ABC who are treatment-naive in the advanced setting. Study 1 is evaluating gedatolisib plus palbociclib plus fulvestrant as first-line treatment for patients with endocrine-resistant HR+/HER2- ABC. Study 2 is evaluating gedatolisib plus palbociclib plus letrozole as first-line treatment for patients with endocrine- sensitive HR+/HER2- ABC. A Phase 1/2 clinical trial, CELC-G-201, evaluating gedatolisib in combination with darolutamide in patients with metastatic castration-resistant prostate cancer, is ongoing. More detailed information about Celcuity’s active clinical trials can be found at ClinicalTrials.gov. Celcuity is headquartered in Minneapolis. Further information about Celcuity can be found at www.celcuity.com. Follow us on LinkedIn and X.

 

Forward Looking Statements

 

This press release contains statements that constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995 including statements relating to the potential therapeutic benefits of gedatolisib; the size, design and timing of the Company’s clinical trials; the Company’s interpretation of clinical trial data; the status and timing of the submission, and the FDA’s review, of the Company’s sNDA for gedatolisib, and for making comparable filings with other regulatory authorities outside the U.S.; the market opportunity for gedatolisib; the Company’s expectations regarding the timing of and its ability to commercialize gedatolisib; the Company’s strategy, marketing and commercialization plans, including the benefits of strategic decisions regarding studies and trials; other expectations with respect to gedatolisib, including subcutaneous formulations to support potential future indications for gedatolisib regimens; the Company’s anticipated use of cash; and the strength of its balance sheet. Words such as, but not limited to, “look forward to,” “believe,” “expect,” “anticipate,” “estimate,” “intend,” “confidence,” “encouraged,” “potential,” “plan,” “targets,” “likely,” “may,” “will,” “would,” “should” and “could,” and similar expressions or words identify forward-looking statements. The forward-looking statements included in this press release are based on management’s current expectations and beliefs which are subject to a number of risks, uncertainties and factors, including that the Company’s topline clinical results are based on an ongoing analysis of efficacy and safety data and such data may change following a more comprehensive review of the data related to the clinical trial; unforeseen delays in the Company’s clinical trials or the submission, and FDA’s review of, its sNDA for gedatolisib; the Company’s ability to obtain regulatory approval of its sNDA and maintain regulatory approvals to commercialize gedatolisib, and the market acceptance of gedatolisib; the development of therapies and tools competitive with gedatolisib; and the Company’s ability to access capital upon favorable terms. In addition, all forward-looking statements are subject to other risks detailed in the Company’s Annual Report on Form 10-K for the year ended December 31, 2025, as such risks may be updated in its subsequent filings with the Securities and Exchange Commission. You are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof. All forward-looking statements are qualified in their entirety by these cautionary statements, and the Company undertakes no obligation to revise or update this press release to reflect events or circumstances after the date hereof.

 

 
 

 

References:

 

  1. National Cancer Institute. Surveillance, Epidemiology and End Results Program (Accessed July 2025). https://seer.cancer.gov/statfacts/html/breast-subtypes.html
     
  2. Anderson, E. et al. A Systematic Review of the Prevalence and Diagnostic Workup of PIK3CA Mutations in HR+/HER2– Metastatic Breast Cancer, Int J Breast Cancer. 2020 Jun 20;2020:3759179.
     
  3. Venkatesan, A. M., et al. Bis(morpholino-1,3,5-triazine) derivatives: potent adenosine 5’-triphosphate competitive phosphatidylinositol-3-kinase/mammalian target of rapamycin inhibitors: discovery of compound 26 (PKI-587), a highly efficacious dual inhibitor. J Med Chem, 2010;53(6), 2636-2645. https://doi.org/10.1021/jm901830p
     
  4. Mallon, R., et al. Antitumor efficacy of PKI-587, a highly potent dual PI3K/mTOR kinase inhibitor. Clin Cancer Res, 2011;17(10), 3193-3203. https://doi.org/10.1158/1078-0432.CCR-10-1694
     
  5. Rossetti, S., et al. Gedatolisib shows superior potency and efficacy versus single-node PI3K/AKT/mTOR inhibitors in breast cancer models. NPJ Breast Cancer, 2024;10(1), 40. https://doi.org/10.1038/s41523-024-00648-0

 

Contacts:

 

For Investors:

Brian Sullivan, bsullivan@celcuity.com

Vicky Hahne, vhahne@celcuity.com

(763) 392-0123

Jodi Sievers, jsievers@celcuity.com

(415) 494-9924

 

For Media:

Sam Brown LLC

Laura Morgan, lauramorgan@sambrown.com

(951) 333-9110

 

 

 

 

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Filing Exhibits & Attachments

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