- ICH GCP
- Registro degli studi clinici negli Stati Uniti
- Sperimentazione clinica NCT00452205
Bone Marrow-derived Cells' Contribution to Tumor Formation and Inflammation
Bone Marrow-derived Cells' Contribution to Tumor Formation and Epithelial Cells Regeneration in the Gastrointestinal Tract
Panoramica dello studio
Stato
Condizioni
Descrizione dettagliata
Recent experimental studies showed that circulating bone marrow-derived stem cells contribute to the formation of cancers cells. However, it is not clear whether this is applicable to human beings or not. In addition, bone marrow-derived cells are considered to play a significant role in regeneration of inflamed epithelial cells of the gastrointestinal tract during graft versus host disease (GVHD), which sometimes occurs after bone marrow transplantation (BMT). On the other hand, it is well known that the incidence of solid tumors is significantly increased following bone marrow transplantation.
One purpose of this study is to determine the role of bone marrow-derived cells in the tumor formation and acute or chronic inflammation of the gastrointestinal tract in human beings, and the other is to discover early cancers of the gastrointestinal tract in the subjects received BMT by conducting surveillance for detecting second tumor, periodically.
All subjects are the patients received allogeneic BMT in Tokyo Metropolitan Komagome Hospital for hematopoietic disorders.
For determining the role of bone marrow-derived cells in the solid tumors and inflammation like GVHD, suitable candidates are females who received allogeneic BMT from male donors, because the most reliable marker of bone marrow-derived cells is identification of the Y chromosomes from the male donor in the tissue of female.
For the early detection of gastrointestinal cancers, the subjects are confined to patients without recurrence of original disorder at least 1 year after BMT. They are scheduled to undergo a medical inspection using gastrointestinal endoscopy, periodically.
When tumor or any other lesions are discovered, biopsy specimens are taken and proceed to pathological examination. According to the results, the patients will have proper treatments.
The tissue specimens from the tumors or inflammation in female recipients from male donors are processed for Y fluorescent in situ hybridization (FISH) analysis and immunocytochemistry using monoclonal antibodies such as cytokeratin, CD45 and so on.
Procedure
First of all, informed consent to this study should be gained from the subjects.
Study 1: to determine the role of bone marrow-derived cells on inflammation such as GVHD
- Subjects are female recipients from male donors.
- When they have some symptoms suggesting acute or chronic GVHD, gastrointestinal endoscopy is conducted and biopsy specimens are taken from the lesions for the definite diagnosis and identification of bone marrow-derived cells.
- Pathological investigation(Y-FISH etc.) is conducted using the tissue specimens.
Study 2: to conduct surveillance for second malignancy and to determine the role of bone marrow-derived cells on the formation of the tumor
- Subjects are confined to bone marrow recipients without the recurrence of the original disorder at least 1 year after BMT.
- A medical inspection for gastrointestinal tract is performed using periodical endoscopy.
- The tissue from tumors or any other lesions discovered are taken as biopsy specimen and processed for pathological examination. Regarding the female recipients from male donors, the same procedure as in the study 1 is taken for pathological study.
Tipo di studio
Iscrizione (Anticipato)
Contatti e Sedi
Luoghi di studio
-
-
Bunkyo-ku
-
Tokyo, Bunkyo-ku, Giappone, 113-8677
- Reclutamento
- Cancer and Infection Disease Center, Komagome
-
Contatto:
- Naoto Egawa, MD
- Numero di telefono: 6158 +81-3-3823-2101
- Email: naoto@cick.jp
-
Contatto:
- Hisashi Sakamaki, MD
- Numero di telefono: 6153 +81-3-3823-2101
- Email: sakamaki@cick.jp
-
Investigatore principale:
- Naoto Egawa, MD
-
-
Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
Accetta volontari sani
Sessi ammissibili allo studio
Metodo di campionamento
Popolazione di studio
Descrizione
Inclusion Criteria:
- After allogeneic bone marrow transplantation
Exclusion Criteria:
- Contraindication for gastrointestinal endoscopy
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Modelli osservazionali: Coorte
- Prospettive temporali: Prospettiva
Collaboratori e investigatori
Sponsor
Investigatori
- Direttore dello studio: Naoto Egawa, MD
Pubblicazioni e link utili
Studiare le date dei record
Studia le date principali
Inizio studio
Completamento dello studio (Anticipato)
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 (Stima)
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
- CICK-07521
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 .