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Safety and Efficacy of FE 999326 Administered Intravesically to Japanese Subjects With High-grade, BCG Unresponsive, Non-muscle Invasive Bladder Cancer (NMIBC)

A Phase 3, Open Label Trial to Evaluate the Safety and Efficacy of FE 999326 Administered Intravesically to Japanese Subjects With High-grade, BCG Unresponsive, Non-muscle Invasive Bladder Cancer (NMIBC)

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05704244
Enrollment
25
Registered
2023-01-30
Start date
2022-12-21
Completion date
2029-11-30
Last updated
2026-09-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Bladder Cancer

Brief summary

To evaluate the safety and efficacy of FE 999326 in Japanese subjects with high-grade, BCG unresponsive NMIBC.

Interventions

DRUGFE 999326

75 mL FE 999326 (3 x 10\^11 vp/mL) of sterile suspension instilled once every 3 months into the bladder via a urinary catheter

Sponsors

Ferring Pharmaceuticals
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
20 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Have at entry, confirmed by a pathology report: 1. Carcinoma in situ (CIS) only 2. Ta/T1 high-grade disease with concomitant CIS or 3. Ta/T1 high-grade disease without concomitant CIS * Subjects who did not respond to BCG treatment and have a persistent high-grade recurrence within 12 months after BCG was initiated, and those who despite an initial complete response to BCG, relapse with CIS within 12 months of their last intravesical treatment with BCG or relapse with high-grade Ta/T1 NMIBC within 6 months of their last intravesical treatment with BCG. * Life expectancy \>2 years, in the opinion of the investigator * Eastern Cooperative Oncology Group (ECOG) status 2 or less * Absence of concomitant upper tract urothelial carcinoma or urothelial carcinoma within the prostatic urethra * Subjects with prostate cancer on active surveillance at low risk for progression, defined as prostate-specific antigen (PSA) \<10 ng/dL

Exclusion criteria

* Current or previous evidence of muscle invasive (muscularis propria) or metastatic disease presented at the screening visit. * Current systemic therapy for bladder cancer * Current or prior investigational treatment for BCG unresponsive NMIBC or any other investigational drug within 1 month prior to screening * Current or prior pelvic external beam radiotherapy within 5 years of entry * Use of other adenovirus vector medications, including COVID-19 vaccines, within 2 weeks before and after instillation * History of malignancy of other organ system within past 5 years, except treated basal cell carcinoma or squamous cell carcinoma of the skin and ≤pT2 upper tract urothelial carcinoma at least 24 months after nephroureterectomy. * Subjects who cannot hold instillation for 1 hour * Subjects who cannot tolerate intravesical dosing or intravesical surgical manipulation * Intravesical therapy within 8 weeks prior to beginning trial treatment, with the exception of: * Cytotoxic agents when administered as a single instillation immediately following a TURBT procedure * Previous intravesical BCG therapy * Systemic immunosuppressive therapy within 3 months prior to screening

Design outcomes

Primary

MeasureTime frameDescription
Whether or not a subject with CIS (with or without concomitant high-grade Ta or T1 papillary disease) responds to treatment, defined as complete response at any time after first administration of FE 999326At Month 12 assessmentA subject with CIS (with or without concomitant high-grade Ta or T1 papillary disease) has achieved a complete response at an efficacy assessment if urine cytology is negative and there are no lesions on cystoscopy. If biopsy of the bladder is performed, this must be negative.

Secondary

MeasureTime frame
Duration of complete response in subjects with CIS (with or without concomitant high-grade Ta or T1 papillary disease) who show a complete response at any time after first administration of FE 999326Up to 5 years
Whether or not a subject with high-grade Ta or T1 papillary disease (without concomitant CIS) responds to treatment, defined as absence of recurrence of high-grade diseaseUp to 4 years
Duration of event-free survival in subjects with high-grade Ta or T1 papillary disease (without concomitant CIS) and in subjects with CIS (with or without papillary disease)Up to 5 years
Incidence of cystectomyUp to 4 years
Time to cystectomyUp to 4 years
Overall survivalUp to 5 years
Concentration of FE 999326-specific DNA levels in urineUp to day 1 of month 4 after start of treatment; and 3, 6, 9 and 12 months after last dose (up to 5 years after start of treatment)
Type, incidence, relatedness and severity of treatment emergent adverse eventsUp to 5 years

Countries

Japan

Contacts

STUDY_DIRECTORGlobal Clinical Compliance

Ferring Pharmaceuticals

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 3, 2026