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No longer recruiting (closed or complete)Last updated: 3 April 2025

THOR 2: This phase II trial is comparing a type of targeted therapy with the investigator's choice of chemotherapy for the treatment of high-risk non-muscle invasive bladder cancerA Randomized Phase 2 Study of Erdafitinib Versus Investigator Choice of Intravesical Chemotherapy in Subjects Who Received Bacillus Calmette-Guérin (BCG) and Recurred With High Risk Non-Muscle-Invasive Bladder Cancer (NMIBC) and FGFR Mutations or Fusions

Trial purpose

Medical clipboardCancer treatment

Tumor type

Urinary System Cancers Genitourinary

Age

People18+

Trial acronym

THOR 2

Clinical summary

Summary

This trial consists of a screening period, treatment phase and follow-up phase. Eligible patients will be randomised to receive treatment with oral erdafitinib for a 2-year period OR the investigator's choice of chemotherapy (either intravesical gemcitabine or intravesical mitomycin C (MMC)/hyperthermic MMC) once weekly for at least 4 doses of induction followed by monthly maintenance for at least 6 months.

Conditions

This trial is treating people with non-muscle invasive bladder cancer

Eligibility

Inclusion

  • Histologically confirmed, recurrent, non-muscle-invasive urothelial carcinoma of the bladder. Variant pathology are allowed
  • Tumor with specified fibroblast growth factor receptor (FGFR) mutations or fusions
  • Bacillus Calmette- Guerin (BCG)-unresponsive after adequate BCG therapy or BCG experienced participants
  • Refuses or is not eligible for cystectomy (Cohort 1 and Cohort 2 only)
  • Eastern Cooperative Oncology Group (ECOG) performance status Grade 0-1
  • Must sign an informed consent form (ICF) (or their legally acceptable representative must sign) indicating that he or she understands the purpose of, and procedures required for, the study and is willing to participate in the study
  • A woman of childbearing potential must have a negative pregnancy test (beta-human chorionic gonadotropin [beta-hCG]) (urine or serum) within 7 days before randomization (Cohort 1) or the first dose of study drug (Cohort 2 and Cohort 3)
  • Adequate bone marrow, liver, and renal function as specified in the protocol

Exclusion

  • Histologically confirmed, muscle-invasive (T2 or higher stage) urothelial carcinoma of the bladder
  • Histopathology demonstrating any small cell component, pure adenocarcinoma, pure squamous cell carcinoma, or pure squamous CIS of the bladder
  • Prior treatment with an FGFR inhibitor
  • Active malignancies other than the disease being treated under study. The only allowed exceptions are: (a) skin cancer treated within the last 24 months that is considered completely cured (b) adequately treated lobular carcinoma in situ (LCIS) and ductal CIS (c) history of localized breast cancer and receiving antihormonal agents, or history of localized prostate cancer (N0M0) and receiving androgen deprivation therapy
  • Current central serous retinopathy or retinal pigment epithelial detachment of any grade

Inclusion

  • You have had treatment, but your cancer has come back (relapsed or recurrent).

Exclusion

  • You have been diagnosed with a prior or secondary type of cancer.
  • You have certain types of non-cancer medical conditions.
Message

Clinical trials have complex eligibility criteria, and other criteria may apply for this trial. Ask your doctor about whether this trial could be right for you.

Participating hospitals

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More information

Trial Identifiers

Information on this page is partially produced from ClinicalTrials.gov *. View further details about this trial on the registry via the links below:

Trial sponsor

Janssen-Cilag Pty Ltd

Scientific Title

A Randomized Phase 2 Study of Erdafitinib Versus Investigator Choice of Intravesical Chemotherapy in Subjects Who Received Bacillus Calmette-Guérin (BCG) and Recurred With High Risk Non-Muscle-Invasive Bladder Cancer (NMIBC) and FGFR Mutations or Fusions

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