- ICH GCP
- Registro degli studi clinici negli Stati Uniti
- Sperimentazione clinica NCT00706121
S0000D: Effect of Vitamin E and/or Selenium on Colorectal Polyps in Men Enrolled on SELECT Trial SWOG-S0000 (ACP)
S0000D: A Study of the Effect of Vitamin E and/or Selenium on Adenomatous Colorectal Polyps (ACP) in Participants Enrolled in SELECT
RATIONALE: Studying tissue samples in the laboratory from participants receiving treatment on the Selenium and Vitamin E Cancer Prevention Trial (SELECT) SWOG-S0000 may help doctors predict a participant's response to treatment and help plan the best treatment.
PURPOSE: This phase III trial is studying the effect of vitamin E and/or selenium on colorectal polyps in men enrolled on SELECT Trial SWOG-S0000.
Panoramica dello studio
Stato
Condizioni
Intervento / Trattamento
Descrizione dettagliata
OBJECTIVES:
Primary
- To assess the effect of selenium on colorectal adenoma (CRA) occurrence.
- To assess the effect of selenium on number, location, size, histologic type, and degree of dysplasia of CRA.
- To assess the effect of selenium on colorectal cancer (CRC) incidence.
Secondary
- To assess the effect of vitamin E on CRA occurrence.
- To assess the effect of vitamin E on CRC incidence.
Tertiary
- To explore the effect modification of selenium and vitamin E by aspirin on CRA occurrence.
- To explore the effect modification of selenium and vitamin E by body mass index.
OUTLINE: This is a multicenter study.
Endoscopically obtained tissue samples are reviewed by study pathologists to confirm the presence (or absence) of a colorectal adenoma (CRA). If a CRA is present, the number, location, size, histology, and degree of dysplasia are documented. The CRA is also reviewed to exclude a diagnosis of colorectal cancer.
Additional data, including aspirin use, height and weight, date of birth, and other demographic and baseline characteristics, is also obtained. Participants' medical records are reviewed periodically.
Participants are followed annually.
Tipo di studio
Iscrizione (Effettivo)
Fase
- Fase 3
Contatti e Sedi
Luoghi di studio
-
-
Arizona
-
Tucson, Arizona, Stati Uniti, 86724
- Arizona Cancer Center
-
-
Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
Accetta volontari sani
Sessi ammissibili allo studio
Descrizione
DISEASE CHARACTERISTICS:
- Enrolled on the Selenium and Vitamin E Cancer Prevention Trial (SELECT) SWOG-S0000
- Screened by lower endoscopy (i.e., sigmoidoscopy and/or colonoscopy) after randomization on SELECT trial
PATIENT CHARACTERISTICS:
- Willing to sign an applicable medical records release form
- Willing to allow the release of tissue for central pathology review of resected polyps and endoscopic biopsies
PRIOR CONCURRENT THERAPY:
- See Disease Characteristics
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Prevenzione
- Assegnazione: Randomizzato
- Modello interventistico: Assegnazione parallela
- Mascheramento: Quadruplicare
Armi e interventi
Gruppo di partecipanti / Arm |
Intervento / Trattamento |
|---|---|
|
Sperimentale: Vitamin E + selenium placebo
Vitamin E and selenium placebo daily for 7 - 12 years
|
400 IU daily by mouth for 7 - 12 years
Altri nomi:
1 pill by mouth daily for 7 - 12 years
Altri nomi:
|
|
Sperimentale: Selenium + vitamin E placebo
Selenium and vitamin E placebo daily for 7 - 12 years
|
200 mcg daily for 7 - 12 years
Altri nomi:
1 pill by mouth daily for 7 - 12 years
Altri nomi:
|
|
Sperimentale: Vitamin E + selenium
Vitamin E and selenium daily for 7 - 12 years
|
400 IU daily by mouth for 7 - 12 years
Altri nomi:
200 mcg daily for 7 - 12 years
Altri nomi:
|
|
Comparatore placebo: Vitamin E placebo + selenium placebo
Vitamin E placebo and selenium placebo daily for 7 - 12 years
|
1 pill by mouth daily for 7 - 12 years
Altri nomi:
1 pill by mouth daily for 7 - 12 years
Altri nomi:
|
Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
Effect of Selenium on Colorectal Adenoma (CRA) Occurrence, Analyzed by Active Selenium vs. Selenium Placebo
Lasso di tempo: From 1 year post randomization through study completion
|
From 1 year post randomization through study completion
|
|
|
Effect of Selenium on Advanced Neoplasia, Analyzed by Active Selenium vs. Selenium Placebo
Lasso di tempo: From 1 year post randomization through study completion
|
Adenomas with diameter >=1cm or any adenoma with villous features or high-grade dysplasia
|
From 1 year post randomization through study completion
|
|
Effect of Selenium and/or Vitamin E on Colorectal Cancer (CRC) Incidence
Lasso di tempo: From 1 year post randomization through study completion
|
From 1 year post randomization through study completion
|
|
|
Effect of Selenium on Occurrences of Multiple (>2) Adenomas
Lasso di tempo: From 1 year post randomization through study completion
|
From 1 year post randomization through study completion
|
Misure di risultato secondarie
Misura del risultato |
Lasso di tempo |
|---|---|
|
Effect of Vitamin E on CRA Occurrence, Analyzed by Active Vitamin E vs. Vitamin E Placebo
Lasso di tempo: From 1 year post randomization through study completion
|
From 1 year post randomization through study completion
|
Altre misure di risultato
Misura del risultato |
Lasso di tempo |
|---|---|
|
Effect Modification of Selenium by Body Mass Index on CRA Occurrence, Analyzed by Active Selenium vs. Selenium Placebo
Lasso di tempo: From 1 year post randomization through study completion
|
From 1 year post randomization through study completion
|
|
Effect Modification of Selenium by Aspirin on CRA Occurrence, Analyzed by Active Selenium vs. Selenium Placebo
Lasso di tempo: From 1 year post randomization through study completion
|
From 1 year post randomization through study completion
|
|
Effect Modification of Vitamin E by Body Mass Index on CRA Occurence, Analyzed by Active Vitamin e vs. Vitamin e Placebo
Lasso di tempo: From 1 year post randomization through study completion
|
From 1 year post randomization through study completion
|
|
Effect Modification of Vitamin E by Aspirin on CRA Occurrence, Analyzed by Active Vitamin e vs. Vitamin e Placebo
Lasso di tempo: From 1 year post randomization through study completion
|
From 1 year post randomization through study completion
|
Collaboratori e investigatori
Sponsor
Collaboratori
Pubblicazioni e link utili
Studiare le date dei record
Studia le date principali
Inizio studio
Completamento primario (Effettivo)
Completamento dello studio (Effettivo)
Date di iscrizione allo studio
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Stima)
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Effettivo)
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Termini MeSH pertinenti aggiuntivi
Altri numeri di identificazione dello studio
- CDR0000593329
- U10CA037429 (Sovvenzione/contratto NIH degli Stati Uniti)
- S0000D (Altro identificatore: SWOG)
Piano per i dati dei singoli partecipanti (IPD)
Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?
Descrizione del piano IPD
Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .