Erdafitinib with or without Cetrelimab for muscle-invasive bladder cancer

A Phase 2, Open-label, Multi-centre, Multi-national Interventional Trial to Evaluate the Efficacy and Safety of Erdafitinib (ERDA) Monotherapy and Erdafitinib (ERDA) and Cetrelimab (CET) Combination as Neoadjuvant Treatment in Cisplatin-ineligible Patients With Muscle-invasive Bladder Cancer (MIBC) Whose Tumours Express Fibroblast Growth Factor Receptor ( FGFR ) Gene Alterations

PHASE2 · Spanish Oncology Genito-Urinary Group · NCT06511648

This study is testing if a new drug called erdafitinib, alone or with another drug called cetrelimab, can help people with muscle-invasive bladder cancer who can’t take certain chemotherapy drugs before their surgery.

Quick facts

PhasePHASE2
Study typeInterventional
Enrollment90 (estimated)
Ages18 Years and up
SexAll
SponsorSpanish Oncology Genito-Urinary Group (other)
Drugs / interventionschemotherapy, radiation, cetrelimab, Erdafitinib
Locations23 sites (Clermont-Ferrand and 22 other locations)
Trial IDNCT06511648 on ClinicalTrials.gov

What this trial studies

This clinical trial evaluates the effectiveness of erdafitinib, both alone and in combination with cetrelimab, as a neoadjuvant treatment for patients with muscle-invasive bladder cancer (MIBC) who have specific FGFR gene alterations and are not eligible for or have declined cisplatin-based chemotherapy. The study aims to measure the antitumor activity by assessing the rate of pathological complete response (pCR) and tumor downstaging after treatment. Eligible patients will receive either treatment before undergoing radical cystectomy within a specified timeframe. The trial includes radiological assessments to monitor treatment response.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 and older with histologically confirmed MIBC and specific FGFR gene alterations who are ineligible for or refuse cisplatin-based chemotherapy.

Not a fit: Patients with metastatic bladder cancer or those with tumors containing neuroendocrine or small cell components may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment approach could provide a new effective option for patients with MIBC who cannot tolerate standard chemotherapy.

How similar studies have performed: While this approach is novel in the context of combining erdafitinib with cetrelimab for this specific patient population, previous studies have shown promise with FGFR-targeted therapies in bladder cancer.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Written informed consent stating that he or she understands the purpose of the study and the procedures involved and agrees to participate in the study.
2. Histologically confirmed diagnosis of MIBC (Stage T2-4a N0/N1 M0) obtained via a diagnostic or maximal Transurethral Resection of Bladder Tumor (TURBT) performed no later than 3 months prior to start the screening visit.
3. Pure or predominant (≥50%) urotelial Cancer (UC) histology as determined at the local site.
4. Age ≥ 18 years.
5. Eastern Cooperative Oncology Group (ECOG) performance status of 0-1
6. Decline or ineligible ("unfit") for cisplatin-based chemotherapy
7. Presence of a selected FGFR alteration on analysis of tumour biopsy
8. Adequate organ function
9. No other malignancy
10. Willingness to avoid pregnancy or fathering children

Exclusion Criteria:

1. Clinical evidence of N2-N3 tumours or metastatic bladder cancer.
2. Has tumour with any neuroendocrine or small cell component.
3. Patients who are not considered fit for cystectomy or reject cystectomy.
4. Prior FGFR-targeted or an immune checkpoint inhibitor (antiPD1/PDL1 )systemic therapy.
5. Prior systemic therapy, radiation therapy, or surgery for bladder cancer

Where this trial is running

Clermont-Ferrand and 22 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.

View on ClinicalTrials.gov →

Conditions: Muscle-invasive Bladder Cancer, Urothelial carcinoma

Last reviewed 2026-05-15 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.