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PHASE III RANDOMIZED CHEMOPREVENTION STUDY OF SELENIUM ON THE RECURRENCE OF NON-INVASIVE BLADDER CANCER - Seleblat

PHASE III RANDOMIZED CHEMOPREVENTION STUDY OF SELENIUM ON THE RECURRENCE OF NON-INVASIVE BLADDER CANCER - Seleblat

Status
Not yet recruiting
Phases
Unknown
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2008-005431-15-BE
Enrollment
Unknown
Registered
2008-09-15
Start date
2008-12-24
Completion date
Unknown
Last updated
2013-09-16

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

Conditions

Bladder cancer MedDRA version: 9.1 Level: LLT Classification code 10005014 Term: Bladder carcinoma MedDRA version: 9.1 Level: LLT Classification code 10005003 Term: Bladder cancer MedDRA version: 9.1 Level: LLT Classification code 10005004 Term: Bladder cancer NOS

Interventions

Trade Name: Selenium Product Name: selenium Pharmaceutical Form: Coated tablet CAS Number: 7782492 Other descriptive name: SELENIUM Concentration unit: µg microgram(s) Concentration type: up to Concen

Sponsors

ACHG-K.U.Leuven
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: ? Gender: male or female ? Members of all races and ethnic groups are eligible for this trial. ? Age: =18 ? Histopathologically confirmed non-muscle-invasive transitional cell carcinoma ( 1) ? Solitary G1 pTa (= 3 cm) ? G2 pTa ? G1 pT1 ? G2 pT1 (1 or 2 tumours) o High risk ? G3 pTa ? G3 pT1 ? Cis ? Multiple G2 pT1 (3 or more foci) ? Must be able to swallow pills ? Must agree not to take supplements containing selenium apart from the trial medication ? Fertile female patients must use effective contraception ? Should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician immediately. Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range F.1.3 Elderly (>=65 years) no F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: ? Solitary grade 1, pTa < 3 cm or stage pT2 and above ? Residual tumors: patients with a recurrence within a period of 3 months after initial treatment (probably due to incomplete resection of the primary index tumor or implantation after the biopsy). Residual tumors have little prospect of being affected by any chemoprevention. ? Prostatic, prostatic urethral, or upper tract transitional cell carcinoma involvement by the index tumor at resection ? Advanced disease or muscle invasion ? Metastatic disease ? Any other malignancy within the past 5 years ? Any other serious medical or psychiatric illness that would preclude giving informed consent ? Known hypersensitivity or adverse reactions to selenium ? Additional concurrent selenium (contained in individual supplements, antioxidant mix, or multivitamin) intake. ? Prior daily dietary supplements containing selenium within the last 30 days. ? Concurrent participation in another study involving a medical, surgical, nutritional, or life-style intervention (unless no longer receiving the intervention and are in the follow-up phase only) ? Any condition, which, in the opinion of the investigator might interfere with the safety of the patient or the evaluation of the study objectives

Design outcomes

Primary

MeasureTime frame
Main Objective: The primary objective of the study is to determine the effect of selenium, in addition to standard care, on the recurrence of bladder cancer. ;Secondary Objective: A secondary objective is to determine the effect of the treatment regimens on the recurrence and progression of bladder cancer in terms of histological type, number and size of the tumors in these participants. ;Primary end point(s): ? Recurrence-free interval in patients with superficial transitional cell carcinoma of the bladder This is defined as time from date of trial entry to date of recurrence. For those patients who are not observed to have a recurrence by time of analysis, the interval will be censored at the date last-known to be recurrence-free. A recurrence is defined as the new occurrence of a bladder cancer at the same or different site as the initial index primary cancer and excluding tumours identified at the first 3-month check cystoscopy.

Countries

Belgium

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026