U.S. FDA approval of INLEXZO™ (gemcitabine intravesical system) set to transform how certain bladder cancers are treated
First and only drug releasing system to provide extended local delivery of a cancer medication into the bladder, with 82 percent of patients achieving complete response without the need for reinduction1
Potential practice-changing treatment for certain patients with BCG-unresponsive non-muscle invasive bladder cancer who have limited options before possible bladder removal
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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
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
"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,
"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
Leading to today's approval, the FDA granted INLEXZO™ Breakthrough Therapy Designation (BTD), Real-Time Oncology Review (RTOR), and Priority Review.
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
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™.
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About
At Johnson & Johnson, we believe health is everything. Our strength in healthcare innovation empowers us to build a world where complex diseases are prevented, treated, and cured, where treatments are smarter and less invasive, and solutions are personal. Through our expertise in Innovative Medicine and
Cautions Concerning Forward-Looking Statements
This press release contains "forward-looking statements" as defined in the Private Securities Litigation Reform Act of 1995 regarding product development and the potential benefits and treatment impact of INLEXZO™. The reader is cautioned not to rely on these forward-looking statements. These statements are based on current expectations of future events. If underlying assumptions prove inaccurate or known or unknown risks or uncertainties materialize, actual results could vary materially from the expectations and projections of
* Dr.
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References
- INLEXZO™
U.S. Prescribing Information. - Grab-Heyne K, Henne C, Mariappan P, et al. Intermediate and high-risk non-muscle-invasive bladder cancer: an overview of epidemiology, burden, and unmet needs. Front Oncol. 2023;13:1170124. doi:10.3389/fonc.2023.1170124
- Llano A, Chan A, Kuk C, et al. Carcinoma in situ (CIS): Is there a difference in efficacy between various BCG strains? A comprehensive review of the literature. Cancers (
Basel ). 2024;16(2):245. doi:10.3390/cancers16020245 - Jiang S, Redelman-Sidi G. BCG in bladder cancer immunotherapy. Cancers (
Basel ). 2022;14(13):3073. doi:10.3390/cancers14133073 -
Al Hussein Al Awamlh B , Chang SS. Novel therapies for high-risk non-muscle invasive bladder cancer. Curr Oncol Rep. 2023;25(2):83-91. doi:10.1007/s11912-022-01350-9 - Aminoltejari K, Black PC. Radical cystectomy: a review of techniques, developments and controversies. Transl Androl Urol. 2020;9(6):3073-3081. doi:10.21037/tau.2020.03.23
- Marqueen KE, Waingankar N, Sfakianos JP, et al. Early mortality in patients with muscle-invasive bladder cancer undergoing cystectomy in
the United States . JNCI Cancer Spectr. 2018;2(4):pky075. doi:10.1093/jncics/pky075
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