Changes in the Gut Microbiota of Patients Undergoing Allogeneic Stem Cell Transplantation (COLLECT) (COLLECT)
Changes Over Time in the Gut Microbiota of High-risk Hematological Patients Undergoing Allogeneic Stem Cell Transplantation (COLLECT)
COLLECT is a monocentric, prospective, observational study, which aims to assess the association between changes in the intestinal microbiota and the incidence of gastrointestinal graft-versus-host diseases (GvHD). Patients admitted for performance of an allogeneic hematopoietic stem cell transplantation (HSCT) or patients with a first diagnosis of an acute myeloid leukemia (AML) will be enrolled and stool samples will be analyzed using next-generation sequencing. In addition to stool, blood and urine samples will be collected for cytokine and 3-indoxylsulfate analysis.
Exposure to drugs will not be influenced and remains at the discretion of the treating physician.
Studieoversigt
Status
Status
Betingelser
Betingelser
Detaljeret beskrivelse
Documentation of patient is performed by using the web-based survey platform www.ClinicalSurveys.net which was set up by researchers of the University Hospital of Cologne. This survey platform enables an optimal performance in epidemiological, observational, and interventional trials and is characterized by layered access security and frequent data backup. It has been used for numerous registry and cohort studies with approval of competent authorities and ethics boards.
The following data items of patients with a written informed consent are prospectively documented into our database:
- Demographics
- Chemotherapeutic agents
- Other immunosuppressives
- Radiation treatment
- Antibiotic prophylaxis and treatment
- Bowel movement abnormalities
- HSCT Donor and recipient information
- Status of hematological disease
- Days with neutropenia
- Fever and infectious complications
The following samples of patients with a written informed consent are prospectively collected, stored and analyzed:
- Stool samples (16S rRNA analysis)
- Urine (3-IS analysis)
- Ethylenediaminetetraacetic acid (EDTA) blood samples (PBMCs Fluorescence-activated cell sorting (FACS) analysis)
- Citrate blood samples (cytokine analysis)
Undersøgelsestype
Undersøgelsestype
Tilmelding (Forventet)
Tilmelding
Kontakter og lokationer
Studiekontakt
Studiekontakt
- Navn: Maria Vehreschild, MD
- Telefonnummer: +49 221 478 88794
- E-mail: maria.vehreschild@uk-koeln.de
Studiesteder
-
-
-
Cologne, Tyskland, 50937
- Rekruttering
- University Hospital of Cologne
-
Kontakt:
- Maria Vehreschild, MD
- Telefonnummer: +49 221 478 88794
- E-mail: maria.vehreschild@uk-koeln.de
-
-
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Prøveudtagningsmetode
Studiebefolkning
Beskrivelse
Inclusion Criteria:
- Age of at least 18 years
- Patients admitted for performance of an allogeneic HSCT OR
- Patients with a first diagnosis of an acute myeloid leukemia
- No contraindication for an allogeneic stem cell transplantation
- Subject is not legally incapacitated
- Written informed consent from the study subject has been obtained
Exclusion Criteria:
- Active inflammatory bowel disease
- Ongoing gastroenteritis at the time of inclusion
- Patient has any other condition that, in the opinion of the investigator, would jeopardize the safety or rights of the patient participating in the study, would make it unlikely for the patient to complete the study, or would confound the results of the study
- Persons with any kind of dependency on the investigator or employed by the sponsor or investigator
- Persons held in an institution by legal or official order
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Antal grupper/kohorter
Kohorter og interventioner
Gruppe / kohorteGruppe / kohorte |
|---|
|
Admitted for allogeneic HSCT
Patients admitted for performance of an allogeneic HSCT after high dosis chemotherapy.
|
|
First diagnosis AML
Patients admitted with a first diagnosis of an acute myeloid leukemia for chemotherapy.
Depending on factors like age or molecular risk profile some of these patients will proceed to allogeneic HSCT.
|
Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Assessment of the association between changes in the intestinal microbiota and the incidence of gastrointestinal GvHD
Tidsramme: 365 days
|
Analyse changes over time in the intestinal microbiota using 16S ribosomal ribonucleic acid (rRNA) analysis and assess microbiota diversity.
|
365 days
|
Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Assessment of the association between changes in the intestinal microbiota and the incidence of non-relapse mortality
Tidsramme: 365 days
|
Analyse changes over time in the intestinal microbiota using 16S rRNA analysis and assess microbiota diversity.
|
365 days
|
|
Investigation of the influence of antibiotics and other risk factors on microbiota changes within this cohort
Tidsramme: 365 days
|
Analyse changes over time in the intestinal microbiota using 16S rRNA analysis and assess microbiota diversity.
|
365 days
|
|
Analysis of the association of 3-indoxylsulfate 3-IS in urine/blood with observed microbiota changes
Tidsramme: 365 days
|
3-indoxylsulfate (3-IS) concentration levels will be quantified using liquid chromatography in combination with mass spectrometry.
|
365 days
|
|
Assessment of the effect of microbiota dysbiosis on cytokine and lymphocyte profiles
Tidsramme: 365 days
|
Cytokine analysis will be performed on the collected plasma samples (citrate) using multiplex assays and read on a Luminex100™ platform.
|
365 days
|
Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Efterforskere
Efterforskere
- Ledende efterforsker: Maria Vehreschild, MD, University Hospital of Cologne, Department of Internal Medicine / Infectious Diseases, Cologne, Germany
Publikationer og nyttige links
Generelle publikationer
- Taur Y, Jenq RR, Perales MA, Littmann ER, Morjaria S, Ling L, No D, Gobourne A, Viale A, Dahi PB, Ponce DM, Barker JN, Giralt S, van den Brink M, Pamer EG. The effects of intestinal tract bacterial diversity on mortality following allogeneic hematopoietic stem cell transplantation. Blood. 2014 Aug 14;124(7):1174-82. doi: 10.1182/blood-2014-02-554725. Epub 2014 Jun 17.
- Jenq RR, Taur Y, Devlin SM, Ponce DM, Goldberg JD, Ahr KF, Littmann ER, Ling L, Gobourne AC, Miller LC, Docampo MD, Peled JU, Arpaia N, Cross JR, Peets TK, Lumish MA, Shono Y, Dudakov JA, Poeck H, Hanash AM, Barker JN, Perales MA, Giralt SA, Pamer EG, van den Brink MR. Intestinal Blautia Is Associated with Reduced Death from Graft-versus-Host Disease. Biol Blood Marrow Transplant. 2015 Aug;21(8):1373-83. doi: 10.1016/j.bbmt.2015.04.016. Epub 2015 May 11.
- Weber D, Oefner PJ, Hiergeist A, Koestler J, Gessner A, Weber M, Hahn J, Wolff D, Stammler F, Spang R, Herr W, Dettmer K, Holler E. Low urinary indoxyl sulfate levels early after transplantation reflect a disrupted microbiome and are associated with poor outcome. Blood. 2015 Oct 1;126(14):1723-8. doi: 10.1182/blood-2015-04-638858. Epub 2015 Jul 24.
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Studiestart
Primær færdiggørelse (Forventet)
Primær færdiggørelse
Studieafslutning (Forventet)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- COLLECT
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
Studerer et amerikansk FDA-reguleret lægemiddelprodukt
Studerer et amerikansk FDA-reguleret enhedsprodukt
Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .
Kliniske forsøg med Akut myeloid leukæmi
-
NCT04354025Trukket tilbageRefraktær akut myeloid leukæmi | Recidiverende akut myeloid leukæmi
-
NCT02109627AfsluttetAkut myeloid leukæmi | Refraktær akut myeloid leukæmi | Recidiverende akut myeloid leukæmi
-
NCT01576185AfsluttetAkut myeloid leukæmi i barndommen/andre myeloid malignitet
-
NCT05488132RekrutteringAkut myeloid leukæmi, i tilbagefald | Akut myeloid leukæmi refraktær
-
NCT04051996Afsluttet
-
NCT04196010AfsluttetTilbagevendende akut myeloid leukæmi | Refraktær akut myeloid leukæmi | Myeloid neoplasma
-
NCT05127798RekrutteringAkut myeloid leukæmi, voksen
-
NCT04946890Ikke rekrutterer endnuAkut myeloid leukæmi leukæmi
-
NCT04716114Rekruttering
-
NCT04908852AfsluttetAkut myeloid leukæmi (AML)