Nucleoside Metabolic Inhibitor

Inlexzo

Approved 9 Sept 2025Into the bladderSystem

Indications

INLEXZO 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. INLEXZO is a nucleoside metabolic inhibitor-containing intravesical system, 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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Contraindications

INLEXZO is contraindicated in patients with: Perforation of the bladder [see Warnings and Precautions (5.1) ] . Prior hypersensitivity reactions to gemcitabine or any component of the product. Perforation of the bladder ( 4 , 5.1 ) Prior hypersensitivity reaction to gemcitabine or any component of the product ( 4 )

Warnings and precautions

Risks in Patients with Perforated Bladder : Evaluate the bladder before the intravesical insertion of INLEXZO. Do not administer to patients with a perforated bladder or in whom the integrity of the bladder mucosa has been compromised. ( 4 , 5.1 ) Risk of Metastatic Bladder Cancer with Delayed Cystectomy : Delaying cystectomy can lead to the development of metastatic bladder cancer, which can be lethal. ( 5.2 ) Magnetic Resonance Imaging (MRI) Safety : INLEXZO can only be safely scanned with MRI under certain conditions.

( 5.3 ) Embryo-Fetal Toxicity : Can cause fetal harm. Advise patients of the potential risk to a fetus and to use effective contraception. ( 5.4 , 8.1 , 8.3 )

5.1Risks 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 [see Contraindications (4) ].

Indications

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Contraindications

Warnings and precautions

( 5.3 ) Embryo-Fetal Toxicity : Can cause fetal harm. Advise patients of the potential risk to a fetus and to use effective contraception. ( 5.4 , 8.1 , 8.3 )

5.1Risks in Patients with Perforated Bladder

Adverse reactions

The most common (>15%) adverse reactions, including laboratory abnormalities, are 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. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Janssen Biotech, Inc. at 1-800-526-7736 (1-800-JANSSEN) or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

6.1Clinical Trials Experience

Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. The safety of INLEXZO monotherapy was evaluated in Cohort 2 of SunRISe-1, a multi-center, open-label study in 85 adult patients with BCG-unresponsive NMIBC with CIS, with or without papillary tumors [see Clinical Studies (14.1) ].

Patients received INLEXZO (225 mg of gemcitabine) inserted into the bladder every 3 weeks for 6 months, followed by once every 12 weeks for up to 18 months, or until unacceptable toxicity, disease persistence, recurrence, or progression [see Dosage and Administration (2.2) ] . The median number of doses of INLEXZO administered to patients was 9 (range: 1 to 14) doses. The median duration of exposure to INLEXZO was 41 weeks (range: 1 to 108 weeks).

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. Permanent discontinuation of INLEXZO due to an adverse reaction occurred in 7% of patients. Adverse reactions which resulted in permanent discontinuation of INLEXZO in >1% of patients included bladder irritation, urinary frequency, cognitive disorder, hydronephrosis, and urinary tract disorder.

Dosage interruptions of INLEXZO due to an adverse reaction occurred in 41% of patients. Adverse reactions which required dosage interruption in >3% of patients included urinary tract infection, urinary tract pain, hematuria, urinary frequency, micturition urgency, dysuria, and genital pain. 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.

Table 1 summarizes the adverse reactions in SunRISe-1. Table 1: Adverse Reactions Occurring in >15% of Patients in SunRISe-1 Adverse Reaction INLEXZO N=85 All Grades % Grade 3 or 4 % Urinary frequency 48 0 Urinary tract infection Includes other related terms 44 6 Dysuria 42 0 Micturition urgency 34 0 Urinary tract pain 26 7 Hematuria 24

2.4 Bladder irritation 16 0 Other clinically significant adverse reactions (<15%) included fatigue (14%), genital pain (12%), diarrhea (11%), urinary incontinence (9%), urinary retention (7%), and nocturia (4.7%). Table 2: Select Laboratory Abnormalities (>15%) That Worsened from Baseline in Patients Who Received INLEXZO in SunRISe-1 Laboratory Abnormality INLEXZO The denominator used to calculate the rate varied from 82 to 83 based on the number of patients with a baseline value and at least one post-treatment value.

All Grades (%) Grade 3 or 4 (%) Hematology Decreased Hemoglobin 31

1.2 Decreased Lymphocytes 24

4.8 Chemistry Increased Lipase 28 12 Increased Creatinine 24 0 Increased Potassium 22

1.2 Increased AST 17

1.2 Decreased Sodium 16

4.8 Increased ALT 16 1.2

Inlexzo

Indications

Contraindications

Warnings and precautions

5.1Risks in Patients with Perforated Bladder

Two medicines in one question?

Inlexzo

Indications

Contraindications

Warnings and precautions

5.1Risks in Patients with Perforated Bladder

Two medicines in one question?

5.2Risk of Metastatic Bladder Cancer with Delayed Cystectomy

5.3Magnetic Resonance Imaging (MRI) Safety

5.4Embryo-Fetal Toxicity Based

Pregnancy and breastfeeding

8.1Pregnancy Risk Summary Based

Adverse reactions

6.1Clinical Trials Experience

Composition

Official product information

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