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Impact of Acetic Acid-Indigo Carmine Chromocolonoscopy on Proximal Sessile Serrated Lesions (ACID-SSL)

17. maj 2026 opdateret af: Zhaoshen Li, Changhai Hospital

Impact of Acetic Acid-Indigo Carmine Chromocolonoscopy on Proximal Sessile Serrated Lesions: a Multicenter Randomized Trial

Chromocolonoscopy with acetic acid and indigo carmine has shown promise for improving the detection of sessile serrated lesions (SSLs), the precursor lesions responsible for a substantial proportion of interval colorectal cancers. Previous studies have demonstrated its potential to enhance visualization of both adenomatous and non-adenomatous polyps, particularly the subtle SSLs that are frequently missed during conventional white-light colonoscopy. However, high-quality randomized controlled trials comparing chromocolonoscopy with standard white-light imaging to provide definitive evidence on its efficacy for SSL detection are lacking. We therefore conducted a multicenter, prospective, randomized controlled trial to evaluate the diagnostic yield of acetic acid-indigo carmine chromocolonoscopy versus standard colonoscopy for SSL detection.

Studieoversigt

Status

Ikke rekrutterer endnu

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

2689

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Undersøgelse Kontakt Backup

Studiesteder

  • Kina
    • Shanghai Municipality
      • Shanghai, Shanghai Municipality, Kina, 200433
        • China, Shanghai Changhai Hospital, Second Military Medical University
        • Kontakt:
        • Kontakt:

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Beskrivelse

Inclusion Criteria:

  • Patients whose age are between 45-85
  • Patients who have indications for screening
  • Patients who have signed inform consent form.

Exclusion Criteria:

  • Patients undergoing surveillance colonoscopy after polypectomy or therapeutic colonoscopy for known polyps
  • Patients with a history of colonoscopy within the past 5 years
  • Patients with highly suspected or confirmed colorectal cancer
  • Patients with alarming signs or symptoms: hematochezia, melena, unexplained anemia, weight loss, abdominal mass, positive digital rectal examination
  • Pregnant or breastfeeding women
  • Patients with gastrointestinal obstruction
  • Patients with inflammatory bowel disease, colonic polyposis, or melanosis coli
  • Patients with coagulation disorders or who have taken antiplatelets or anticoagulants (e.g., aspirin, warfarin) within 7 days before colonoscopy
  • Patients currently participating in another clinical trial or who have participated in another clinical trial within the preceding 60 days
  • Patients with failed cecal intubation for any reason (e.g., obstructing lesion, intolerance of the procedure)
  • Patients with an Aronchick bowel preparation score >3 at colonoscope insertion, indicating inadequate preparation requiring a repeat bowel preparation
  • Patients who have used bowel preparation agents not recommended by guidelines, such as oral sodium phosphate or senna
  • Patients with known allergy to acetic acid-indigo carmine, brilliant blue dye, or medications related to colonoscopy
  • Patients with missing essential information in the case report form prior to enrollment

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Diagnostisk
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Firedobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Acetic Acid-Indigo Carmine Chromocolonoscopy Group
Procedure: Acetic Acid-Indigo Carmine Chromocolonoscopy Group
Participants undergo colonoscopy with acetic acid-indigo carmine chromoendoscopy. After successful cecal intubation and randomization, the colonoscope is withdrawn and a spray catheter is used to apply an opaque acetic acid-indigo carmine solution from the cecum to the splenic flexure.
Sham-komparator: Brilliant Blue Chromocolonoscopy Sham-Control Group
Procedure: Brilliant Blue Chromocolonoscopy Sham-Control Group
Participants undergo colonoscopy with brilliant blue dye application as a sham chromoendoscopy control to maintain participant blinding. After cecal intubation and randomization, an opaque brilliant blue solution is sprayed from the cecum to the splenic flexure using a spray catheter, with suctioning of any excess dye.
Ingen indgriben: Conventional White-Light Colonoscopy Group

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Proximal SSL Detection Rate
Tidsramme: 60 minutes
The proportion of participants with at least one histologically confirmed sessile serrated lesion detected in the proximal colon (cecum, ascending colon, hepatic flexure, transverse colon, and splenic flexure) during withdrawal examination.
60 minutes

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Colorectal precancerous lesions detection rate
Tidsramme: 60 minutes
The proportion of participants with at least one histologically confirmed precancerous lesion (adenoma, or SSL) detected during withdrawal examination.
60 minutes
Adenoma Detection Rate
Tidsramme: 60 minutes
The proportion of participants with at least one histologically confirmed adenoma (tubular, villous, or tubulovillous) detected during withdrawal examination, compared across all three study groups.
60 minutes

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Changhai Hospital

Samarbejdspartnere

The First Affiliated Hospital of Nanchang University
The Second Hospital of Hebei Medical University
Ankang Central Hospital
Shanxi Provincial People's Hospital
Chongqing General Hospital
Yan'an People's Hospital
The Third People's Hospital of Chengdu
Heilongjiang Provicial Hospital
People's Hospital of Leshan, Sichuan Province
Huadong Hospital Affiliated with Fudan University, Shanghai
The Third People's Hospital of Jingdezhen
Guangzhou Medical University Affiliated Qingyuan Hospital (Qingyuan People's Hospital)
Shanghai Sixth Hospital
Ningbo Hospital of Integrated Traditional Chinese and Western Medicine
Shandong Provincial Second People's Hospital

Efterforskere

  • Ledende efterforsker: Zhaoshen Li, MD, Changhai Hospital

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Anslået)

15. juni 2026

Primær færdiggørelse (Anslået)

15. november 2028

Studieafslutning (Anslået)

15. november 2028

Datoer for studieregistrering

Først indsendt

17. maj 2026

Først indsendt, der opfyldte QC-kriterier

17. maj 2026

Først opslået (Faktiske)

22. maj 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

22. maj 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

17. maj 2026

Sidst verificeret

1. maj 2026

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Andre undersøgelses-id-numre

  • CHSSLDR202602

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