Veru Inc.

09/08/2026 | Press release | Distributed by Public on 09/08/2026 06:17

Veru Advances Oral Sabizabulin Following Positive Preclinical Data Showing Potent Anticancer Activity in Human Daraxonrasib (Revolution Medicines’ RASONQUE™) Resistant[...]

Veru Advances Oral Sabizabulin Following Positive Preclinical Data Showing Potent Anticancer Activity in Human Daraxonrasib (Revolution Medicines' RASONQUE) Resistant Pancreatic Cancer into a Planned Phase 2 Clinical Trial

-New positive preclinical studies show that sabizabulin can overcome drug resistance to daraxonrasib with potent anticancer efficacy

(IC50=18.2nM) in daraxonrasib resistant human pancreatic cancer cell line which is a drug concentration that can be achieved with current sabizabulin human dosing with good safety-

-Oral sabizabulin had a good safety profile and promising efficacy in previous first-in-man Phase 1b/2 clinical study of 80 subjects with castration resistant and taxane resistant metastatic prostate cancer-

-Based on these new and prior supportive preclinical and clinical studies, the Company has made the strategic decision to advance oral sabizabulin as an innovative treatment for patients that develop metastatic pancreatic cancer progression that has become resistant to daraxonrasib-

-Veru has IP protection for sabizabulin until 2043 and controls global development and commercialization rights-

-Company's enobosarm for high quality weight loss in older patients with obesity receiving GLP-1 RA fully on track - Phase 2b PLATEAU clinical trial interim analysis near term milestone calendar Q1 2027, clinical supply agreement with Novo Nordisk, strong IP protection with newly issued patent for enobosarm with GLP-1 RA until late 2044-

MIAMI, FL - September 08, 2026 - Veru Inc. (NASDAQ: VERU) today announces new preclinical data showing that sabizabulin can overcome drug resistance to daraxonrasib (RASONQUE1 Revolution Medicines) with potent anticancer efficacy (IC50=18.2nM) in daraxonrasib resistant human pancreatic cancer cell line which is a drug concentration that can be achieved with current sabizabulin human dosing with good safety.

Based on the new, positive preclinical data, and the previous preclinical and clinical sabizabulin studies, the Company will advance sabizabulin into a planned Phase 2 clinical trial for metastatic KRAS-driven pancreatic cancer progression that has become resistant to the recent FDA approved daraxonrasib.

New preclinical data results: Sabizabulin demonstrated potent anticancer activity against KRAS-driven metastatic cancer cell lines that were resistant to daraxonrasib (August 2026)

Preclinical studies were performed using a 2D proliferation assay to evaluate the efficacy of sabizabulin in parental and daraxonrasib resistant KRAS driven pancreatic cancer cell line AsPC-1 (G12D KRAS mutation) and colon cancer HCT-116 cell line (G13D KRAS mutation). It was confirmed that the reason for daraxonrasib resistance was the reactivation of the KRAS signaling pathway in both pancreatic and colon daraxonrasib resistant cell lines. The resistance index (RI) was calculated, which is the ratio of drug concentration required to inhibit 50% cell growth (IC50) in resistant cell line compared to its parental (sensitive) cell line. The resistance index represents the fold-change in drug tolerance of the resistant cell line compared to its sensitive, parental cell line. An RI greater than 1 indicates resistance, while an RI below 1 indicates increased sensitivity to the drug.

Like daraxonrasib, sabizabulin had potent anticancer activity for both pancreatic cancer and colon cancer parental cell lines regardless of the type of KRAS mutation. As expected, the daraxonrasib resistant cell lines were resistant to daraxonrasib with a RI of 68 for pancreatic cancer cell line and RI of >128 for colon cancer cell line. In contrast, daraxonrasib resistant pancreatic cancer cell lines became more sensitive (collateral sensitivity) to sabizabulin with a RI of 0.25 and daraxonrasib resistant colon cell line retained sensitivity to sabizabulin with a RI of 1. In summary, sabizabulin retained highly potent anticancer efficacy in daraxonrasib resistant pancreatic and colon cancer cell lines that had reactivation of KRAS signaling pathway as the mechanism for drug resistance to daraxonrasib. These preclinical data may also support sabizabulin as a treatment of daraxonrasib resistant cancer types beyond pancreatic cancer.

"The recent FDA approval of Revolution Medicines' daraxonrasib was a major breakthrough in the treatment of KRAS-driven metastatic pancreatic cancer," said Mitchell Steiner, M.D., Chairman, President, and Chief Executive Officer of Veru Inc. "Unfortunately, resistance to daraxonrasib occurs as the median time to cancer progression was 7.2 months in patients receiving daraxonrasib. The primary mechanism that leads to daraxonrasib reactivation is reactivation of the KRAS signaling pathway. As sabizabulin targets downstream components of the KRAS signaling pathway, we explored and confirmed in recently completed preclinical studies that sabizabulin has the potential to treat metastatic pancreatic cancer that has become resistant to daraxonrasib. This exciting new development and the importance of this large unmet medical need compel us to pursue this novel sabizabulin oncology indication. With the goal of maximizing Veru shareholder value, we have made the strategic decision to advance sabizabulin into a Phase 2b clinical trial. Consequently, we will no longer be exploring sabizabulin for the treatment of chronic inflammation related to atherosclerotic cardiovascular disease. The Company controls global development and commercialization rights to sabizabulin with issued patent protection until 2043."

Dr. Steiner added: "Our enobosarm obesity program is completely on track. The Phase 2b PLATEAU clinical trial is fully enrolled, and we expect the interim analysis, a near term milestone, in calendar Q1 2027. We entered into a clinical supply agreement with Novo Nordisk2, and we now have an issued US patent for enobosarm with semaglutide with expiry in late 2044."

"Sabizabulin represents a compelling candidate for Phase 2 evaluation following daraxonrasib treatment, based on its profile as an oral, targeted agent with a novel microtubule binding mechanism and its ability to downregulate TUBB3 and other downstream effectors of the KRAS signaling pathway. The rationale is further strengthened by reassuring safety findings from a previous Phase 1b/2 study in 80 patients, as well as preclinical data evidence that daraxonrasib resistance may potentiate sensitivity to sabizabulin. Together, these findings support clinical investigation of sabizabulin as a rational post-daraxonrasib strategy," said Daniel King, M.D., Ph.D., Medical Oncologist and Director of Research and Development for Genomic Medicine at Northwell Health.

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Sabizabulin is a clinical stage oncology drug candidate that has a favorable safety profile with promising preliminary anticancer activity

Sabizabulin's first-in-man study was a Phase 1/2b clinical trial evaluating safety and efficacy of sabizabulin in advanced metastatic prostate cancer (Markowski et al. Clin Cancer Res 28:2789-2795, 2022). We believe positive efficacy and safety clinical data from this Phase 1b/2 first-in-man clinical study of sabizabulin monotherapy conducted in 80 patients with heavily pretreated metastatic castration resistant and taxane resistant prostate cancer support the translational potential of sabizabulin treatment for daraxonrasib resistant metastatic pancreatic cancer.

The Phase 1b portion utilized a 3+3 dose escalation design with escalating daily oral doses of 4.5 mg-81 mg (7 days on drug/14 days off per 21-day cycle, which was then expanded to daily dosing). The Phase 1b portion included 39 metastatic castration resistant cancer patients that were treated with one or more novel androgen receptor targeting agents. Most patients had bone-only disease (55%) with an additional 21% having both lymph node and bone involvement with 23% of patients with prior taxane-based chemotherapy. The Phase 2 portion tested a daily dose of 63 mg in 41 heavily pretreated similar patient population, but with no prior chemotherapy. Efficacy was assessed using PCWG3 and RECIST 1.1 criteria.

The maximum tolerated dose was not defined in the Phase 1b as all doses tested were well tolerated. The recommended Phase 2 dose was set at 63 mg/day. The most common adverse events (>10% frequency) at the 63 mg oral daily dosing (combined Phase 1b/2 safety data) were predominantly Grade 1-2 events. Grade ≥3 events included diarrhea (7.4%), fatigue (5.6%) and ALT/AST elevations (5.6% and 3.7%, respectively). Neurotoxicity and neutropenia were not observed at these dosage levels.

Efficacy data in patients treated with ≥1 continuous cycle (21 days) of 63 mg or higher had a Kaplan-Meier median radiographic progression-free survival that was estimated to be 11.4 months with durable responses lasting greater than 12 months, occurring in 14.5% (n=55) patients. The objective response rate was 20.7% in patients with measurable disease and durable responses lasting greater than 2.75 years were observed. Compared to historical controls, the radiographic progression-free survival in similar patients was only 3.6 months and objective response rate was 2% with an alternative androgen receptor blocking agent (deBono J NEJM 382:2091, 2020). This Phase 1b/2 clinical trial had a favorable safety profile with promising preliminary antitumor activity and demonstrated that chronic oral daily dosing of sabizabulin was feasible up to 3 years.

Next steps

Preclinical studies including in daraxonrasib resistant pancreatic and colon cell lines and promising clinical data from Phase 1b/2 clinical trial conducted in metastatic castration resistant and taxane resistant prostate cancer support the translational potential of sabizabulin against daraxonrasib resistant metastatic pancreatic cancer. Accordingly, the Company plans to pursue a Phase 2b clinical study to evaluate the efficacy and safety of sabizabulin in patients who have metastatic pancreatic cancer progression while receiving treatment with daraxonrasib (RASONQUE). We will first seek regulatory clarity from the FDA through a preIND meeting in calendar Q4 2026 to better understand the scope of the clinical trial. We believe these recent developments will create greater shareholder value.

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About Veru Inc.

Veru is a late clinical stage biopharmaceutical company focused on developing innovative medicines for the treatment of cardiometabolic and oncology. The Company's drug development program includes two late-stage novel small molecules, enobosarm and sabizabulin. Enobosarm, an oral selective androgen receptor modulator (SARM), is being developed as a next generation drug that makes weight reduction by GLP-1 RA drugs more tissue selective for loss of fat and preservation of lean mass to improve body composition and physical function which is expected to result in clinically meaningful incremental weight reduction versus GLP-1 RA therapy alone. Based on previous and new preclinical and clinical studies, sabizabulin, an oral novel microtubule targeting agent that targets downstream components of the KRAS signaling pathway, has demonstrated the potential to become the next treatment for KRAS-driven metastatic pancreatic cancer resistant to the recent FDA approved daraxonrasib multi-selective KRAS inhibitor therapy. Accordingly, the Company plans to pursue a Phase 2b clinical study to evaluate the efficacy and safety of sabizabulin in patients for the treatment of metastatic pancreatic cancer after daraxonrasib failure. We will first seek regulatory clarity from the FDA through a preIND meeting in calendar Q4 2026.

Obesity Program

Evaluating enobosarm in combination with GLP-1 RA for higher quality weight reduction in older patients with obesity

Fully Enrolled Phase 2b PLATEAU Clinical Study

The Phase 2b PLATEAU clinical trial is a double-blind, placebo-controlled study to evaluate the effect of enobosarm 3mg on total body weight, fat mass, lean mass, physical function, bone mineral density and safety in older patients (age ≥ 65 years) who have obesity (BMI ≥ 35) and are initiating semaglutide treatment for weight reduction. During the past quarter, the Company exceeded its Phase 2b PLATEAU clinical trial targeted full enrollment of 200 patients by enrolling 239 patients. The Phase 2b PLATEAU study is designed to assess the ability of enobosarm treatment to break through the weight loss plateau observed in patients with obesity receiving GLP-1 RA treatment by preserving muscle mass and physical function to achieve clinically meaningful incremental weight reduction by 68 weeks. The primary efficacy endpoint of the study is the percent change from baseline in total body weight at 68 weeks. The key secondary endpoints are total fat mass, total lean mass, physical function (stair climb test), mobility disability assessment, bone mineral density, and patient reported outcome questionnaires for physical function, HbA1c, and insulin resistance. Results of an interim analysis assessing lean body mass and fat mass as measured by DXA after patients have completed 32 weeks is expected in the first quarter of calendar year 2027. Final topline clinical data is expected in the fourth quarter of calendar year 2027. The Principal Investigator for the Phase 2b PLATEAU clinical trial is Steven Heymsfield, MD, a Professor and the Director of the Body Composition-Metabolism Laboratory at the Pennington Biomedical Research Center in Baton Rouge, Louisiana. Dr. Heymsfield was also the Principal Investigator of Veru's Phase 2 QUALITY clinical study.

Completed Positive Phase 2b QUALITY Clinical Study

The Phase 2b QUALITY clinical study was a positive multicenter, double-blind, placebo-controlled, randomized, dose-finding clinical trial that evaluated the safety and efficacy of enobosarm 3 mg, enobosarm 6 mg, or placebo as a treatment to augment fat loss and to prevent muscle loss in 168 older patients (≥60 years of age) receiving semaglutide (Wegovy®3) for weight reduction. After the efficacy

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dose-finding portion of the Phase 2b QUALITY clinical trial was completed at 16 weeks, participants continued into a Phase 2b QUALITY maintenance extension portion of study where all patients discontinued semaglutide treatment, but continued receiving placebo, enobosarm 3 mg, or enobosarm 6 mg as monotherapy in a double-blind fashion for 12 weeks. The Phase 2b QUALITY and maintenance extension clinical trial was a positive study that demonstrated that enobosarm plus semaglutide preserved lean mass and physical function and led to greater fat loss during the 16 week active weight loss period and enobosarm monotherapy prevented the regain of weight lost and continued to lose fat mass when the GLP-1 RA was discontinued.

About pancreatic cancer and KRAS

Pancreatic cancer is a highly lethal disease that has one of the lowest survival rates of all major cancers. The incidence of pancreatic cancer is increasing steadily, with an estimated 67,530 new cases and 52,740 deaths in United States for 2026. Pancreatic cancer is predicted to become the second leading cause of cancer-related deaths in the United States by 2030. The survival rate of patients diagnosed with pancreatic cancer is dismal, with median overall survival of 4 months with only ~12.5 % of patients expected to survive 5 years following diagnosis. A significant reason for such poor survival outcomes is the lack of early diagnosis, leading to only 15-20% of patients being eligible for surgery, which is the only curative intent treatment option.

Up to 85 % of patients present with a locally advanced or metastatic disease. One third of patients typically present with locally advanced pancreatic cancer, with vascular involvement preventing a surgical resection option. Treatment aims to control the disease and typically involves systemic chemotherapies of either a combination of gemcitabine and nab-paclitaxel and or FOLFIRINOX (a 4-drug chemotherapy consisting of 5-fluorouracil, oxaliplatin, irinotecan, and leucovorin). Half of pancreatic cancer patients will present with distant metastases, and palliative treatment is provided to reduce cancer-related symptoms and prolong survival.

When compared with other carcinomas, pancreatic cancer is genomically a relatively homogeneous disease. The major genetic event and hallmark in the development of pancreatic ductal adenocarcinoma is the somatic activating KRAS oncogene mutation which is observed in more than 90% of pancreatic cancer tumors. The KRAS mutation remains active during the progression from epithelial cells to invasive cancer, contributing to the processes of proliferation, survival, migration, and invasion. By its effect on the tumor stroma and microenvironment, the KRAS protein plays an important role in the process of metastatic spread and chemotherapy resistance.

About sabizabulin (VERU-111)

Sabizabulin is an orally bioavailable microtubule targeting agent that targets a novel binding sites on microtubules that causes crosslinking of α-tubulin with the "colchicine binding site" of ß-tubulin to inhibit microtubule polymerization (assembly). Based on over 12 peer reviewed publications in preclinical cell lines and xenograft cancer models across a broad range of tumor types*, sabizabulin treatment disrupted and fragmented microtubules, inhibited cancer cell proliferation and tumor growth, prevented cancer cell invasion and metastases, and suppressed angiogenesis. Sabizabulin was able to restore chemosensitivity (pancreatic cancer) and overcome paclitaxel resistance in a variety of tumor types including taxane resistant lung, prostate, ovarian, and cervical cancers. Sabizabulin arrests the cell cycle in the G2/M halting mitosis in rapidly dividing cells resulting in cell death. Independent of its activities to disrupt the microtubules, sabizabulin preferentially decreases the transcription of ßIII- and ßIV-tubulin isoforms to restore chemotherapy sensitivity as well as induces apoptosis in nondividing cells by activation of Caspase 3 and 9 and cleaving PARP and modulation of both cell cycle regulatory proteins (Cdc2, Cdc25c, and Cyclin B1) and intrinsic apoptosis-associated proteins (Bax, Bad, Bcl-2,

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and Bcl-xl) to induce apoptosis. Down regulation of Bcl-2 is particularly interesting as Bcl-2 overexpression protects cancer cell from cell death. Moreover, sabizabulin may overcome other common drug resistance mechanisms since it is not substrate for proteins involved in multidrug resistance including P-glycoprotein, MRP and BCRP so that sabizabulin cannot be effluxed or pumped out of cancer cells.

* Triple negative breast cancer (taxane resistant), cervical cancer, lung cancer (taxane resistant), ovarian cancer (taxane resistant), prostate cancer (taxane resistant), melanoma (BRAF resistant), pancreatic cancer, colon cancer, glioma, and human promyelocytic leukemia (vincristine resistant).

About TUBB3 gene (ßIII-tubulin protein)

Altered expression of ß-tubulin isotypes has been observed in a range of cancers. Among various tubulins, ßIII- and ßIV-tubulin isoforms have been primarily implicated in pancreatic cancer progression, metastasis and chemoresistance. However, there are no specific inhibitors of these isoforms that have potent anticancer activity with low toxicity.

In carcinogenesis, ßIII-tubulin (TUBB3) gene is aberrantly expressed in a range of epithelial tumors and is associated with drug resistance and aggressive disease. In pancreatic cancer, it should be noted that ßIII-tubulin protein is NOT expressed in normal ductal epithelium of the pancreas. In contrast, ßIII-tubulin overexpression is frequently reported in tumor specimens, particularly in advanced or metastatic specimens. ßIII-tubulin aberrant expression has been commonly observed in up to 90% of pancreatic adenocarcinoma cancers. Diverse cancer cell lines have shown that overexpression of ßIII-tubulin confers resistance to paclitaxel, docetaxel, and vinca alkaloids as well as DNA damaging agents, such as cisplatin, topoisomerases inhibitors, and doxorubicin. Aberrant ßIII-tubulin expression was also associated with poorly differentiated tumors, shorter disease progression, chemoresistance, unfavorable prognosis and worse overall survival - not only in pancreatic cancer, but also in many other types of cancers including lung, ovarian, breast, prostate, urothelial and bladder, gastric, rectal cancers, esophageal squamous cell carcinoma, and thymic carcinoma.

Veru Inc. published this content on September 08, 2026, and is solely responsible for the information contained herein. Distributed via EDGAR on September 08, 2026 at 12:17 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]