Oral, Fecal and Intratumoral Microbiome Atlas in Colombian Patients With Advanced Solid Tumors Receiving First-Line Immunotherapy (ATLAS)
Atlas of the Oral, Fecal and Intratumoral Microbiome of Colombian Patients With Advanced Solid Tumors Candidates for First-Line Immunotherapy - Initial Phase of a Project With Latin American Projection
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljeret beskrivelse
Undersøgelsestype
Undersøgelsestype
Tilmelding (Anslået)
Tilmelding
Kontakter og lokationer
Studiekontakt
Studiekontakt
- Navn: Liliana Gutiérrez, RN, MSc
- Telefonnummer: +573003768158
- E-mail: lgutierrez@fctic.org
Undersøgelse Kontakt Backup
- Navn: Andrés F Cardona, MD, MSc, PhD, MBA
- Telefonnummer: +573016348173
- E-mail: acardona@fctic.org
Studiesteder
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Bogota D.C.
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Bogotá, Bogota D.C., Colombia, 110131
- Rekruttering
- Fundación CTIC - Centro de Tratamiento e Investigación sobre Cáncer Luis Carlos Sarmiento Angulo
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Kontakt:
- Liliana Gutiérrez, RN, MSc
- Telefonnummer: +573003768158
- E-mail: lgutierrez@fctic.org
-
Ledende efterforsker:
- Andrés F Cardona, MD, MSc, PhD, MBA
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Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
- Voksen
- Ældre voksen
Tager imod sunde frivillige
Prøveudtagningsmetode
Studiebefolkning
Beskrivelse
Inclusion Criteria:
- Age 18 years or older.
- Histologically confirmed advanced (stage III unresectable or IV) gastric, colorectal, breast, cervical or head-and-neck cancer.
- Candidate for first-line immunotherapy per current clinical guidelines.
- Available FFPE tumor block in institutional or reference pathology archive.
- Able to provide saliva and stool samples at V0 and follow-up.
- ECOG performance status within protocol limits; life expectancy over 3 months.
- Cognitive capacity to give informed consent; signed EVA-BIOBANCO and Atlas consents.
Inclusion Criteria (healthy controls)
- No prior cancer diagnosis.
- No active autoimmune disease; no inflammatory bowel disease.
- No antibiotics, invasive dental treatment, immunosuppressants or corticosteroids in the prior 3 months; no severe active periodontal disease.
Exclusion Criteria:
- Systemic antibiotics within 3 months (except short course under 5 days for uncomplicated infection).
- Probiotics or prebiotics within 30 days.
- Chronic proton-pump inhibitors for more than 3 continuous months.
- Inflammatory bowel disease (Crohn, ulcerative colitis) or extensive bowel resection.
- Pregnancy or lactation.
- BMI under 18.5 or over 40 kg/m².
- Uncontrolled diabetes (HbA1c at or above 9% in prior 3 months).
- Invasive dental treatment within 3 months.
- Patients: simultaneous randomized trial of a non-INVIMA-approved experimental immunotherapy; or no evaluable FFPE block meeting quality thresholds.
- Inability to ensure 12-month clinical follow-up.
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Antal grupper/kohorter
Kohorter og interventioner
Gruppe / kohorteGruppe / kohorte |
Intervention / BehandlingIntervention / Behandling |
|---|---|
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Patients with advanced solid tumors
120 Colombian adults with advanced (stage III unresectable or IV) gastric, colorectal, breast, cervical or head-and-neck cancer, candidates for first-line immunotherapy (standard of care).
Saliva, stool and tongue scraping collected at V0, V1 (6 mo) and V2 (12 mo); archival FFPE tumor block retrieved at V0.
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Exposure observed: first-line immunotherapy with immune checkpoint inhibitors administered as standard of care (INVIMA-approved); no experimental intervention is assigned by the study.
Healthy controls receive no immunotherapy.
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Healthy controls
30 healthy adult volunteers without prior cancer, active autoimmune disease or inflammatory bowel disease, and without antibiotics or invasive dental treatment in the prior 3 months.
Saliva and stool collected at V0 only; no longitudinal follow-up.
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Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Oral, fecal and intratumoral microbiome signatures associated with objective tumor response (RECIST 1.1) to first-line immunotherapy
Tidsramme: Baseline (V0) and through 12 months
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Characterization of oral, fecal and intratumoral microbiomes and identification of taxa and diversity metrics differentiating responders (CR+PR) from non-responders (SD+PD) by RECIST 1.1.
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Baseline (V0) and through 12 months
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Differences in microbiome composition and diversity between cancer patients and healthy controls
Tidsramme: Baseline (V0)
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Comparison of alpha and beta diversity and differential taxonomic and functional abundance between cancer patients and healthy controls.
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Baseline (V0)
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Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Microbial, transcriptomic and metabolomic biomarkers associated with progression-free survival (PFS)
Tidsramme: Association of microbial diversity, key taxa, MAGs and functional pathways with progression-free survival, estimated by Kaplan-Meier and adjusted Cox models.
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Up to 36 months
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Association of microbial diversity, key taxa, MAGs and functional pathways with progression-free survival, estimated by Kaplan-Meier and adjusted Cox models.
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Microbial biomarkers associated with overall survival (OS)
Tidsramme: Up to 36 months
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Association of microbiome features with overall survival, estimated by Kaplan-Meier and adjusted Cox models.
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Up to 36 months
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Andre resultatmål
Andre resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Tumor transcriptomic profile and gene-expression pathways modulated by the intratumoral microbiome
Tidsramme: Baseline (V0)
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RNA-Seq characterization of tumor gene-expression and identification of pathways correlated with intratumoral microbiome composition.
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Baseline (V0)
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Untargeted salivary and fecal metabolomic profile (subcohort, n=60)
Tidsramme: Baseline through 12 months
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GC-MS untargeted metabolomics of saliva and stool in a stratified subcohort (50 patients, 10 controls) to identify metabolites associated with microbiome composition and immunotherapy response.
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Baseline through 12 months
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Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Samarbejdspartnere
Samarbejdspartnere
Efterforskere
Efterforskere
- Ledende efterforsker: Andrés F Cardona, MD, MSc, PhD, MBA, Fundación CTIC - Centro de Tratamiento e Investigación sobre Cáncer Luis Carlos Sarmiento Angulo
Publikationer og nyttige links
Generelle publikationer
- Cullin N, Azevedo Antunes C, Straussman R, Stein-Thoeringer CK, Elinav E. Microbiome and cancer. Cancer Cell. 2021 Oct 11;39(10):1317-1341. doi: 10.1016/j.ccell.2021.08.006. Epub 2021 Sep 9.
- Mancini N, Peri F, Rescigno M, Zanoni I. Microbiome studies in the medical sciences and the need for closer multidisciplinary interplay. Sci Signal. 2020 Feb 4;13(617):eaba9911. doi: 10.1126/scisignal.aba9911.
- Zhernakova A, Kurilshikov A, Bonder MJ, Tigchelaar EF, Schirmer M, Vatanen T, Mujagic Z, Vila AV, Falony G, Vieira-Silva S, Wang J, Imhann F, Brandsma E, Jankipersadsing SA, Joossens M, Cenit MC, Deelen P, Swertz MA; LifeLines cohort study; Weersma RK, Feskens EJ, Netea MG, Gevers D, Jonkers D, Franke L, Aulchenko YS, Huttenhower C, Raes J, Hofker MH, Xavier RJ, Wijmenga C, Fu J. Population-based metagenomics analysis reveals markers for gut microbiome composition and diversity. Science. 2016 Apr 29;352(6285):565-9. doi: 10.1126/science.aad3369. Epub 2016 Apr 28.
- Dohlman AB, Arguijo Mendoza D, Ding S, Gao M, Dressman H, Iliev ID, Lipkin SM, Shen X. The cancer microbiome atlas: a pan-cancer comparative analysis to distinguish tissue-resident microbiota from contaminants. Cell Host Microbe. 2021 Feb 10;29(2):281-298.e5. doi: 10.1016/j.chom.2020.12.001. Epub 2021 Jan 6.
- Parida S, Sharma D. The Microbiome and Cancer: Creating Friendly Neighborhoods and Removing the Foes Within. Cancer Res. 2021 Feb 15;81(4):790-800. doi: 10.1158/0008-5472.CAN-20-2629. Epub 2020 Nov 4.
- Park EM, Chelvanambi M, Bhutiani N, Kroemer G, Zitvogel L, Wargo JA. Targeting the gut and tumor microbiota in cancer. Nat Med. 2022 Apr;28(4):690-703. doi: 10.1038/s41591-022-01779-2. Epub 2022 Apr 19.
- El Tekle G, Garrett WS. Bacteria in cancer initiation, promotion and progression. Nat Rev Cancer. 2023 Sep;23(9):600-618. doi: 10.1038/s41568-023-00594-2. Epub 2023 Jul 3.
- Parizadeh M, Arrieta MC. The global human gut microbiome: genes, lifestyles, and diet. Trends Mol Med. 2023 Oct;29(10):789-801. doi: 10.1016/j.molmed.2023.07.002. Epub 2023 Jul 27.
- Govender P, Ghai M. Population-specific differences in the human microbiome: Factors defining the diversity. Gene. 2025 Jan 15;933:148923. doi: 10.1016/j.gene.2024.148923. Epub 2024 Sep 6.
- Trakman GL, Fehily S, Basnayake C, Hamilton AL, Russell E, Wilson-O'Brien A, Kamm MA. Diet and gut microbiome in gastrointestinal disease. J Gastroenterol Hepatol. 2022 Feb;37(2):237-245. doi: 10.1111/jgh.15728. Epub 2021 Nov 16.
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Studiestart
Primær færdiggørelse (Anslået)
Primær færdiggørelse
Studieafslutning (Anslået)
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
- Urogenitale sygdomme
- Genitale sygdomme
- Urogenitale neoplasmer
- Neoplasmer efter sted
- Urogenitale sygdomme hos kvinder
- Kvinders urogenitale sygdomme og graviditetskomplikationer
- Tarmsygdomme
- Gastrointestinale neoplasmer
- Neoplasmer i fordøjelsessystemet
- Sygdomme i fordøjelsessystemet
- Gastrointestinale sygdomme
- Mavesygdomme
- Intestinale neoplasmer
- Endetarmssygdomme
- Livmodersygdomme
- Kønssygdomme, kvindelige
- Tyktarmssygdomme
- Genitale neoplasmer, kvindelige
- Hudsygdomme
- Brystsygdomme
- Livmoderhalssygdomme
- Uterine neoplasmer
- Hud- og bindevævssygdomme
- Neoplasmer
- Neoplasmer i maven
- Kolorektale neoplasmer
- Brystneoplasmer
- Uterine cervikale neoplasmer
- Neoplasmer i hoved og hals
- Antineoplastiske midler, immunologiske
- Antineoplastiske midler
- Molekylære mekanismer for farmakologisk virkning
- Sundhedstjenester Administration
- Sundhedsvæsenets kvalitet, adgang og evaluering
- Farmakologiske handlinger
- Kemiske handlinger og anvendelser
- Terapeutiske anvendelser
- Sundhedskvalitet
- Kvalitetsindikatorer, sundhedsvæsenet
- Immune Checkpoint-hæmmere
- Standard for pleje
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- ATLAS
- CEI-232 (Anden identifikator: Comité de Ética de la Investigación Riesgo de Fractura S.A)
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
IPD-planbeskrivelse
IPD-delingstidsramme
IPD-delingsadgangskriterier
IPD-deling Understøttende informationstype
- STUDY_PROTOCOL
- SAP
- ANALYTIC_CODE
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
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