Tagworks Pharmaceuticals Announces Initiation of Third Dose Level in Ongoing Phase 1 Clinical Trial of TGW101 for the Treatment of Solid Tumors

On September 9, 2025 Tagworks Pharmaceuticals BV ("Tagworks"), a clinical-stage precision oncology company using its proprietary Click-to-Release treatment platform to develop a new standard of care for patients suffering from solid tumors, reported the third dose level has been initiated in the ongoing Phase 1 clinical trial evaluating TGW101, a first-in-class antibody-drug conjugate (ADC) targeting tumor associated glycoprotein 72 (TAG-72) with a monomethyl auristatin E (MMAE) payload, in patients with advanced solid tumors (Press release, Tagworks Pharmaceuticals, SEP 9, 2025, View Source [SID1234655885]).

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"We are pleased to report continued progress in our Phase 1 clinical trial of TGW101 which reflects our strong operational execution and commitment to advancing our pioneering Click-to-Release technology," said Ken Mills, Chief Executive Officer of Tagworks. "The Safety Oversight Committee’s decision to proceed to the third dose level highlights TGW101’s favorable safety profile to date. We are encouraged by the potential of TGW101’s highly differentiated profile to address significant unmet needs in the treatment of advanced solid tumors, while overcoming limitations seen with other ADC therapies. We look forward to sharing preliminary data from the study, including safety, pharmacokinetics, and potential early signs of clinical activity, in early to mid-2026."

The ongoing Phase 1 trial is a multicenter, open-label, dose-escalation study designed to evaluate the safety, tolerability, pharmacokinetics, and preliminary anti-tumor activity of TGW101 in patients with relapsed or refractory solid tumors. The primary objectives are to determine the maximum tolerated dose (MTD), recommended Phase 2 dose (RP2D), and dose regimen for cohort expansion.

To date, the trial has initiated three dose levels following favorable safety reviews by the Safety Oversight Committee (SOC). Up to seven dose levels are currently planned, and the maximum dose to be evaluated may be updated based on evolving clinical safety and pharmacokinetic data. The study aims to enroll up to 50 patients across sites in the United States, with potential expansion to additional regions.

Tagworks expects to share preliminary safety and pharmacokinetic data, along with any early signals of efficacy, in early to mid-2026.

About TGW101
TGW101 is an antibody-drug conjugate (ADC) targeting TAG-72, a non-internalizing marker found on the surface of many solid tumor cells. TGW101 consists of a TAG-72-binding diabody conjugated with monomethyl auristatin E (MMAE) toxin. TGW101 is administered intravenous (IV) first and allowed to bind to TAG-72 in the tumor. Then a small molecule trigger is administered IV, resulting in selective chemical cleavage of the linker of the tumor-bound TGW101, release of the MMAE in the extracellular tumor microenvironment and diffusion into surrounding tumor cells. TGW101 is being studied in an open-label, multicenter, Phase 1 dose-escalation clinical trial designed to evaluate safety, tolerability, pharmacokinetics, and preliminary efficacy in patients with advanced solid tumors.

Citius Oncology Announces Pricing of $9.0 Million Registered Direct Offering and Concurrent Private Placement

On September 9, 2025 Citius Oncology, Inc. ("Citius Oncology") (Nasdaq: CTOR), the oncology-focused subsidiary of Citius Pharmaceuticals, Inc. ("Citius Pharma") (Nasdaq: CTXR), a late-stage biopharmaceutical company developing and commercializing first-in-class critical care products, reported that it has entered into a securities purchase agreement with a single institutional investor to purchase 5,142,858 shares of common stock in a registered direct offering (Press release, Citius Oncology, SEP 9, 2025, View Source [SID1234655884]). In a concurrent private placement, the Company also agreed to issue unregistered warrants to purchase up to an aggregate of 5,142,858 shares of common stock. The combined effective offering price for each share of common stock and accompanying warrant is $1.75. The warrants will have an exercise price of $1.84 per share, will be exercisable six months from the date of issuance, and will expire on the five and one-half year anniversary from the date of issuance.

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The gross proceeds to the Company from the registered direct offering and concurrent private placement are estimated to be approximately $9.0 million before deducting placement agent fees and other estimated offering expenses payable by the Company. The offering is expected to close on or about September 10, 2025, subject to the satisfaction of customary closing conditions.

Maxim Group LLC is acting as sole placement agent in connection with the offering.

The shares of common stock described above are being offered pursuant to a registration statement on Form S-3 (File No. 333-289979), which was filed with the U.S. Securities and Exchange Commission ("SEC") on September 2, 2025, and was declared effective by the SEC on September 4, 2025. The offering of shares of common stock will be made only by means of a prospectus supplement, forming a part of the effective registration statement. A prospectus supplement relating to the shares of common stock will be filed with the SEC. Electronic copies of the prospectus relating to this offering, when available, may also be obtained from Maxim Group LLC, 300 Park Avenue, 16th Floor, New York, New York 10022, Attention: Syndicate Department, by telephone at (212) 895-3745 or by email at [email protected]. The warrants to be issued in the concurrent private placement and the shares issuable upon exercise of such warrants were offered in a private placement under Section 4(a)(2) of the Securities Act of 1933, as amended (the "Act"), and Regulation D promulgated thereunder and have not been registered under the Act or applicable state securities laws.

This press release shall not constitute an offer to sell or a solicitation of an offer to buy any of the securities described herein, nor shall there be any sale of these securities in any state or other jurisdiction in which such offer, solicitation or sale would be unlawful prior to the registration or qualification under the securities laws of any such state or other jurisdiction.

U.S. FDA approval of INLEXZO™ (gemcitabine intravesical system) set to transform how certain bladder cancers are treated

On September 9, 2025 Johnson & Johnson (NYSE:JNJ) reported the U.S. Food and Drug Administration (FDA) approved INLEXZO (gemcitabine intravesical system), a new, potentially practice-changing approach for treating patients with certain types of bladder cancer, addressing the need for additional options following unsuccessful BCG therapy and for patients refusing or ineligible for bladder removal surgery (radical cystectomy) (Press release, Johnson & Johnson, SEP 9, 2025, View Source [SID1234655883]). INLEXZO, previously referred to as TAR-200, is indicated for the treatment of adult patients with Bacillus Calmette-Guérin (BCG)-unresponsive, non-muscle invasive bladder cancer (NMIBC) with carcinoma in situ (CIS), with or without papillary tumors.

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INLEXZO is designed for patients seeking bladder preservation and is the first and only intravesical drug releasing system (iDRS) to provide extended local delivery of a cancer medication into the bladder. INLEXZO remains in the bladder for three weeks per treatment cycle for up to 14 cycles.1 A healthcare professional places INLEXZO into the bladder using a co-packaged urinary catheter and stylet to insert it into the bladder.1 INLEXZO is placed in an outpatient setting in a few minutes, without the need for general anesthesia or further monitoring immediately post-insertion within the healthcare provider’s office.1

"When we acquired this novel therapy in 2019, our ambition was to give patients with bladder cancer a renewed sense of hope and belief," said Jennifer Taubert, Executive Vice President, Worldwide Chairman, Innovative Medicine, Johnson & Johnson. "In an area that has seen little progress for more than 40 years, INLEXZO delivers a first-of-its-kind breakthrough innovation with a bright future ahead."

The approval is supported by data from the SunRISe-1 (NCT04640623) single arm, open-label Phase 2b clinical study.1 Results show 82 percent of patients with BCG-unresponsive NMIBC treated with INLEXZO achieved a complete response (CR), meaning no signs of cancer were found after treatment (95 percent confidence interval [CI], 72, 90).1 This high response rate demonstrated strong durability, and 51 percent of these patients maintained a complete response for at least one year.1

In the SunRISe-1 clinical trial supporting this approval, the most common adverse reactions (≥15 percent) including laboratory abnormalities, were urinary frequency, urinary tract infection, dysuria, micturition urgency, decreased hemoglobin, increased lipase, urinary tract pain, decreased lymphocytes, hematuria, increased creatinine, increased potassium, increased aspartate aminotransferase (AST), decreased sodium, bladder irritation, and increased alanine transaminase (ALT).1

"I see many patients that ultimately become BCG-unresponsive and often face life-altering bladder removal. These patients now may be ideal candidates for newly approved INLEXZO," said Sia Daneshmand, M.D., TAR-200 SunRISe-1 principal investigator, and Professor of Urology, Director of Urologic Oncology at the Norris Comprehensive Cancer Center, Keck School of Medicine of University of Southern California.* "In my experience, INLEXZO is well-tolerated and delivers clinically meaningful results. This will change the way we treat appropriate patients that haven’t responded to traditional therapy."

"We are proud of the science that has brought us to this historic moment," said John Reed, M.D., Ph.D., Executive Vice President, R&D, Innovative Medicine, Johnson & Johnson. "INLEXZO is a novel therapy with powerful efficacy and demonstrated safety profile. As the only major healthcare company that hosts both pharmaceuticals and medical devices, we leveraged the speed and scale of Johnson & Johnson to accelerate innovation and deliver this important therapy to patients."

"At BCAN, our mission has always been to advocate for better todays and more tomorrows for everyone impacted by bladder cancer. This approval represents the kind of progress that brings new options to a community that urgently needs them," said Meri-Margaret Deoudes, CEO, Bladder Cancer Advocacy Network (BCAN).** "Patients with bladder cancer need guidance and collaboration with providers to navigate bladder-sparing treatment options, including newly approved treatments like INLEXZO, so they can move forward feeling well-informed and confident."

Leading to today’s approval, the FDA granted INLEXZO Breakthrough Therapy Designation (BTD), Real-Time Oncology Review (RTOR), and Priority Review.

Johnson & Johnson is committed to helping patients access our treatments. Once a patient and their doctor have decided that INLEXZO is right for the patient, J&J withMe provides a simple, comprehensive patient support program offering cost support, a dedicated Care Navigator and educational resources, at no cost to the patient.

About SunRISe-1, Cohort 2
SunRISe-1 (NCT04640623), Cohort 2, was a single arm, open-label Phase 2b clinical study that evaluated the safety and efficacy of INLEXZO monotherapy for BCG-unresponsive NMIBC patients with carcinoma in situ (CIS) with or without papillary tumors who are ineligible for, or elected not to undergo, radical cystectomy. The primary endpoint for Cohort 2 was complete response (CR) rate at any time point, and secondary endpoints include duration of response (DOR).

About Non-Muscle Invasive Bladder Cancer (NMIBC) and the Current Standard of Care
Non-muscle invasive bladder cancer (NMIBC) is a type of non-invasive bladder cancer that can be classified as low, intermediate, or high risk depending on the presence of characteristics including tumor size, presence of multiple tumors, and carcinoma in situ (CIS).2 NMIBC with CIS makes up approximately 10 percent of patients with NMIBC.3 The current standard of care for NMIBC is Bacillus Calmette-Guérin (BCG), which is a weakened form of the bacteria found in tuberculosis treatment. Though effective, some patients become unresponsive to it and may experience challenges.4,5 Radical cystectomy is currently recommended for NMIBC patients who fail BCG therapy; it is a life-altering surgery with a high degree of morbidity and adverse impact on life, and has a post-surgery mortality rate of three to eight percent.6,7 Given that NMIBC typically affects older patients, many may be unwilling or unfit to undergo radical cystectomy.

About INLEXZO
INLEXZO is approved by the U.S. Food and Drug Administration (FDA) for the treatment of adult patients with Bacillus Calmette-Guérin (BCG)-unresponsive, non-muscle invasive bladder cancer (NMIBC) with carcinoma in situ (CIS), with or without papillary tumors. INLEXZO is an intravesical system enabling extended release of gemcitabine into the bladder. It is placed in a few minutes without general anesthesia or further monitoring immediately post-insertion within the healthcare provider’s office. For more information, visit INLEXZO.com.

The safety and efficacy of INLEXZO is being evaluated in clinical trials in patients with MIBC in SunRISe-4, and NMIBC in SunRISe-1, SunRISe-3, and SunRISe-5.

INLEXZO INDICATION AND IMPORTANT SAFETY INFORMATION

INDICATION
INLEXZO (gemcitabine intravesical system) is indicated for the treatment of adult patients with Bacillus Calmette-Guérin (BCG)-unresponsive, non-muscle invasive bladder cancer (NMIBC) with carcinoma in situ (CIS), with or without papillary tumors.

IMPORTANT SAFETY INFORMATION

CONTRAINDICATIONS
INLEXZO is contraindicated in patients with:

Perforation of the bladder.
Prior hypersensitivity reactions to gemcitabine or any component of the product.
WARNINGS AND PRECAUTIONS

Risks in Patients with Perforated Bladder
INLEXZO may lead to systemic exposure to gemcitabine and to severe adverse reactions if administered to patients with a perforated bladder or to those in whom the integrity of the bladder mucosa has been compromised.

Evaluate the bladder before the intravesical administration of INLEXZO and do not administer to patients with a perforated bladder or mucosal compromise until bladder integrity has been restored.

Risk of Metastatic Bladder Cancer with Delayed Cystectomy
Delaying cystectomy in patients with BCG-unresponsive CIS could lead to development of muscle invasive or metastatic bladder cancer, which can be lethal. The risk of developing muscle invasive or metastatic bladder cancer increases the longer cystectomy is delayed in the presence of persisting CIS.

Of the 83 evaluable patients with BCG-unresponsive CIS treated with INLEXZO in Cohort 2 of SunRISe-1, 7 patients (8%) progressed to muscle invasive (T2 or greater) bladder cancer. Three patients (3.5%) had progression determined at the time of cystectomy. The median time between determination of persistent or recurrent CIS or T1 and progression to muscle invasive disease was 94 days.

Magnetic Resonance Imaging (MRI) Safety
INLEXZO can only be safely scanned with MRI under certain conditions. Refer to section 5.3 of the USPI for details on conditions.

Embryo-Fetal Toxicity
Based on animal data and its mechanism of action, INLEXZO can cause fetal harm when administered to a pregnant woman if systemic exposure occurs. In animal reproduction studies, systemic administration of gemcitabine was teratogenic, embryotoxic, and fetotoxic in mice and rabbits.

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 and for 6 months after final removal of INLEXZO. Advise male patients with female partners of reproductive potential to use effective contraception during treatment and for 3 months after final removal of INLEXZO.

ADVERSE REACTIONS
Serious adverse reactions occurred in 24% of patients receiving INLEXZO. Serious adverse reactions that occurred in >2% of patients included urinary tract infection, hematuria, pneumonia, and urinary tract pain. Fatal adverse reactions occurred in 1.2% of patients who received INLEXZO, including cognitive disorder.

The most common (>15%) adverse reactions, including laboratory abnormalities, were urinary frequency, urinary tract infection, dysuria, micturition urgency, decreased hemoglobin, increased lipase, urinary tract pain, decreased lymphocytes, hematuria, increased creatinine, increased potassium, increased AST, decreased sodium, bladder irritation, and increased ALT.

USE IN SPECIFIC POPULATIONS

Pregnancy
There are no available data on the use of INLEXZO in pregnant women to inform a drug-associated risk.

Please see Embryo-Fetal Toxicity for risk information related to pregnancy.

Lactation
Because of the potential for serious adverse reactions in breastfed infants, advise women not to breastfeed during treatment and for 1 week after final removal of INLEXZO.

Females and Males of Reproductive Potential
Pregnancy Testing – Verify pregnancy status in females of reproductive potential prior to initiating INLEXZO.

Contraception – Please see Embryo-Fetal Toxicity for information regarding contraception.

Infertility (Males) – Based on animal studies, INLEXZO may impair fertility in males of reproductive potential. It is not known whether these effects on fertility are reversible.

Geriatric Use
Of the patients given INLEXZO monotherapy in Cohort 2 of SunRISe-1, 72% were 65 years of age or older and 34% were 75 years or older. There were insufficient numbers of patients <65 years of age to determine if these patients respond differently to patients 65 years of age and older.

Please read full Prescribing Information and Instructions for Use for INLEXZO.

Celldex to Present at Morgan Stanley 23rd Annual Global Healthcare Conference

On September 9, 2025 Celldex Therapeutics, Inc. (NASDAQ:CLDX) reported that management will participate in a fireside chat today, September 9th, 2025, at the Morgan Stanley 23rd Annual Global Healthcare Conference at 3:20 pm ET (Press release, Celldex Therapeutics, SEP 9, 2025, View Source [SID1234655882]). A live webcast of the presentation will be available on the "Events & Presentations" page of the "Investors" section of the Celldex website. A replay will be available for 90 days following the event.

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Xilio Therapeutics Announces Initiation of Phase 2 Trial for Efarindodekin Alfa (XTX301), a Tumor-Activated IL-12, and Achievement of $17.5 Million Development Milestone Under Exclusive License Agreement with Gilead

On September 9, 2025 Xilio Therapeutics, Inc. (Nasdaq: XLO), a clinical-stage biotechnology company discovering and developing tumor-activated immuno-oncology therapies for people living with cancer, reported the initiation of patient dosing in Phase 2 of an ongoing Phase 1/2 clinical trial evaluating efarindodekin alfa (XTX301), a tumor-activated IL-12, as a monotherapy in patients with certain advanced solid tumors (Press release, Xilio Therapeutics, SEP 9, 2025, View Source [SID1234655881]). In addition, today Xilio announced the achievement of a $17.5 million development milestone under Xilio’s license agreement with Gilead Sciences, Inc. (Gilead) and updated data from the ongoing Phase 1 trial for efarindodekin alfa.

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"We are pleased to announce the initiation of the Phase 2 clinical trial for efarindodekin alfa (XTX301), a tumor-activated IL-12, in patients with advanced solid tumors," said René Russo, Pharm.D., president and chief executive officer of Xilio. "The achievement of this important milestone highlights the promising Phase 1 data demonstrated for efarindodekin alfa to date, including two partial responses in late-line patients with advanced solid tumors and a generally well-tolerated safety profile. These data also provide further clinical validation for our proprietary masking technology and approach, which we believe is best-in-class and has potential across a wide range of therapies and modalities."

"We are encouraged by the totality of data observed to date for efarindodekin alfa (XTX301) as a monotherapy in patients with advanced solid tumors, and we are excited for the potential that IL-12 has to treat a broad range of tumor types," said Bernard Fine, vice president, oncology early development at Gilead. "We look forward to advancing the efarindodekin alfa (XTX301) program in the Phase 2 trial in partnership with Xilio."

Efarindodekin alfa (XTX301): tumor-activated IL-12

Efarindodekin alfa (XTX301) is an investigational tumor-activated IL-12 designed to potently stimulate anti-tumor immunity and reprogram the tumor microenvironment (TME) of poorly immunogenic "cold" tumors towards an inflamed or "hot" state. In March 2024, Xilio entered into an exclusive license agreement with Gilead related to Xilio’s tumor-activated IL-12 program, including efarindodekin alfa. Xilio is evaluating efarindodekin alfa as a monotherapy in an ongoing Phase 1/2 clinical trial in patients with advanced solid tumors.

·

As of a data cutoff date of September 2, 2025, at dose levels up to the recommended Phase 2 dose (RP2D), efarindodekin alfa has been generally well-tolerated in Phase 1, and the majority of treatment-related adverse events were Grade 1 or 2.

·
In Phase 1 as of the data cutoff date, efarindodekin alfa has also demonstrated encouraging anti-tumor activity, including two partial responses in patients with advanced solid tumors (one confirmed, one unconfirmed), as well as sustained interferon gamma (IFNɣ) signaling without evidence of tachyphylaxis throughout treatment cycles.

·
Based on these promising Phase 1 data, Xilio recently selected an initial RP2D and schedule for efarindodekin alfa and initiated patient dosing in the Phase 2 portion of the trial evaluating efarindodekin alfa as a monotherapy in patients with certain advanced solid tumors.

In connection with the initiation of Phase 2, Xilio achieved a development milestone of $17.5 million.

·
Xilio recently completed enrollment in Phase 1A monotherapy dose escalation and evaluation of those patients is ongoing. In addition, Xilio continues to enroll patients in the Phase 1B monotherapy dose expansion portion of the ongoing Phase 1/2 clinical trial of efarindodekin alfa.

Efarindodekin alfa has not been approved by any regulatory agency and its efficacy and safety have not been established.

Financial Guidance

As of June 30, 2025, Xilio had cash and cash equivalents of $121.6 million. Based on its current operating plans, Xilio anticipates that its cash and cash equivalents as of June 30, 2025, together with the $17.5 million development milestone achieved under the license agreement with Gilead, will be sufficient to enable it to fund its operating expenses and capital expenditure requirements into the first quarter of 2027. Xilio expects to receive payment of the $17.5 million development milestone by the fourth quarter of 2025.

About the Gilead License Agreement

In March 2024, Xilio entered into an exclusive global license agreement with Gilead to develop and commercialize efarindodekin alfa (XTX301), a tumor-activated IL-12, and specified other molecules directed to IL-12.

Xilio is responsible for conducting clinical development for efarindodekin alfa through the initial Phase 2 portion of the ongoing Phase 1/2 clinical trial. Following the delivery by Xilio of a specified clinical data package for efarindodekin alfa related to the Phase 1/2 clinical trial, Gilead can elect to transition responsibilities for the development and commercialization of efarindodekin alfa to Gilead, subject to the terms of the license agreement and payment by Gilead of a $75.0 million transition fee.

If Gilead exercises its option for efarindodekin alfa, Xilio will be eligible to receive up to $500.0 million in specified development, regulatory and sales-based milestones and will be eligible to receive tiered royalties ranging from high single digits to mid-teens on annual global net product sales.

About Efarindodekin Alfa (XTX301) and the Phase 1/2 Clinical Trial

Efarindodekin alfa (XTX301) is an investigational masked IL-12 designed to potently stimulate anti-tumor immunity and reprogram the tumor microenvironment (TME) of poorly immunogenic "cold" tumors towards an inflamed or "hot" state. In March 2024, Xilio entered into an exclusive license agreement with Gilead Sciences, Inc. for Xilio’s tumor-activated IL-12 program, including efarindodekin alfa. Xilio is currently evaluating the safety and tolerability of efarindodekin alfa as a monotherapy in patients with advanced solid tumors in the Phase 1 portion of a first-in-human, multi-center, open-label Phase 1/2 clinical trial and the safety and efficacy of efarindodekin alfa as a monotherapy in the Phase 2 portion in patients with advanced solid tumors. The Phase 2 portion of the trial is anticipated to enroll approximately 40 patients in specific tumor types at multiple sites in the United States. Please refer to NCT05684965 on www.clinicaltrials.gov for additional details.