Evaluating eciskafusp alfa with BCG for bladder cancer treatment

A Phase I/II, Open-label, Dose Escalation and Extension Study of Intravesical Eciskafusp Alfa in Combination With Bacillus Calmette-guerin (BCG) in Participants With BCG-unresponsive High-risk Non-muscle Invasive Bladder Cancer (NMIBC)

Phase 1 Interventional Hoffmann-La Roche · NCT06816017

This study is testing if a new drug called eciskafusp alfa, when combined with BCG, can help people with high-risk bladder cancer that hasn't improved with BCG alone.

Quick facts

PhasePhase 1
Study typeInterventional
Enrollment110 (estimated)
Ages18 Years and up
SexAll
SponsorHoffmann-La Roche Industry-sponsored
Drugs / interventionschemotherapy, immunotherapy
Locations9 sites (Macquarie Park, New South Wales and 8 other locations)
Trial IDNCT06816017 on ClinicalTrials.gov

What this trial studies

This study evaluates the safety and effectiveness of eciskafusp alfa combined with Bacillus Calmette-Guerin (BCG) in patients with high-risk non-muscle invasive bladder cancer that has not responded to BCG treatment. Participants will receive intravesical administration of the drug, and the study will assess pharmacokinetics, pharmacodynamics, and preliminary anti-tumor activity. Following a positive interim analysis, the study may also explore eciskafusp alfa as a standalone treatment.

Who should consider this trial

Good fit: Ideal candidates include individuals with confirmed high-risk non-muscle invasive bladder cancer who have not responded to prior BCG therapy.

Not a fit: Patients with resectable disease or those who are eligible for radical cystectomy may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could provide a new therapeutic option for patients with BCG-unresponsive bladder cancer.

How similar studies have performed: Other studies have shown promise in using combination therapies for bladder cancer, but this specific approach is novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Pathologically confirmed high risk non muscle invasive transitional cell carcinoma classified according to World Health Organization (WHO) grading system
* Absence of resectable disease after transurethral resection of bladder tumor (TURBT) procedures
* The most recent cystoscopy/TURBT must have been performed within 12 weeks and up to 14 days of the first dose of study treatment
* Presence of BCG-unresponsive disease defined as persistent or recurrent carcinoma in situ \[CIS\] (± recurrent Ta/T1 disease) within 12 months of receiving adequate BCG therapy
* The participant is considered ineligible for radical cystectomy or has elected not to undergo the procedure.
* Negative hepatitis B surface antigen (HBsAg) test at screening
* Positive hepatitis B surface antibody (HBsAb) test at screening
* Negative hepatitis C virus (HCV) antibody test at screening

Exclusion Criteria:

* Significant history of or current cardiovascular, respiratory, hepatic, renal, gastrointestinal, endocrine, hematological, or neurological disorders
* Active infections (both systemic and local urinary)
* Congenital or acquired immune deficiencies resulting in immunosuppression
* Known human immunodeficiency virus (HIV) infection
* History of radiotherapy of the bladder
* History of perforation of the bladder
* Major surgery or significant traumatic injury within 28 days prior to first administration of study treatment or anticipation of the need for major surgery during treatment
* Participants currently receiving investigational or commercial anti-cancer agents or anti-cancer therapies other than BCG, and supportive care therapies for active disease
* Any intervening intravesical immunotherapy or chemotherapy from the time of the most recent cytoscopy/TURBT to the start of study treatment
* Systemic immune-modulating and systemic immunosuppressive agents/medication
* Administration of a live, attenuated vaccine within 28 days prior to first administration of study treatment
* Recurrence of BCG unresponsive CIS \> 12 months after last BCG instillation
* Concurrent second malignancy

Where this trial is running

Macquarie Park, New South Wales and 8 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Non-muscle Invasive Bladder CancerBCG-unresponsive Non-muscle Invasive Bladder Cancer
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.