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ctDNA og organbevaring/patologisk CR ved rektalkreft

2. november 2026 oppdatert av: Hannah Roberts, Massachusetts General Hospital

En studie av rollen til sirkulerende tumor-DNA i å forutsi sannsynligheten for organbevaring eller patologisk fullstendig respons etter neoadjuvant terapi for rektalkreft

This prospective observational, non-therapeutic study for patients with T3, T4, or node positive rectal cancer eligible to undergo total neoadjuvant therapy.

This research study involves the collection of data and biospecimens (blood and tissue) to see if the presence of circulating tumor DNA (genetic material) ctDNA will help monitor rectal cancer more closely and potentially detect a recurrence before routine scans, performed per standard of care

C2i Genomics, a biotechnology company, and the Spier Foundation are supporting this research study by providing funding for the study.

Studieoversikt

Status

Tilbaketrukket

Intervensjon / Behandling

Detaljert beskrivelse

The research study procedures include screening for eligibility and the collection of data and biospecimens. Non-operative management is offered as part of routine clinical care.

It is expected that up to 60 participants will be enrolled, with the goal that 55 participants will take part in this research study .

Participants enrolled on the study will remain on study for up to 60 months.

Studietype

Observasjonsmessig

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

18 år og eldre (Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Alle

Prøvetakingsmetode

Ikke-sannsynlighetsprøve

Studiepopulasjon

This prospective observational, non-therapeutic study will enroll patients with T3, T4, or node positive rectal cancer eligible to undergo total neoadjuvant therapy.

Beskrivelse

Inclusion Criteria:

  • Participants with T3, T4, or node-positive non-metastatic rectal cancer.
  • Participants must have original tumor tissue (formalin-fixed, paraffin embedded specimens) available for analysis or be willing to undergo a baseline research biopsy.
  • Participants must be 18 years of age or older.
  • ECOG 0-2.
  • Participants must be eligible for at least 3 months of FOLFOX, FOLFIRINOX/FOLFOXIRI, or CAPOX
  • Participants must be eligible for long course chemoradiation to 40-54 Gy.
  • Participants must be able to understand and willing to sign a written informed consent document.

Exclusion Criteria:

  • Participants must not have any other organ cancer evident at the time of enrollment.
  • Participants may not have any other concurrent serious illness that makes participation on this study impractical or clinically inappropriate.
  • Participants must not be actively or planning to be pregnant or breastfeeding

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Observasjonsmodeller: COHORT
  • Tidsperspektiver: PROSPECTIVE

Kohorter og intervensjoner

Gruppe / Kohort
Intervensjon / Behandling
EVALUATION OF CTDNA

This prospective observational, non-therapeutic study will enroll patients with T3, T4, or node positive rectal cancer eligible to undergo total neoadjuvant therapy/ All procedures involved with this trial will be done as per standard of care

- Except for the initial research biopsy, quality of life assessments and ctDNA collection

initial research biopsy, quality of life assessments and ctDNA collection

Hva måler studien?

Primære resultatmål

Resultatmål
Tidsramme
Frekvens for vellykket ikke-operativ ledelse
Tidsramme: 1 år
1 år
Frekvens for vellykket patologisk fullstendig respons
Tidsramme: 1 år
1 år

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Rate of local recurrence
Tidsramme: 5 years

Local recurrence is defined as cancer coming back is in the same place as the original cancer or very close to it. Local recurrence will be assessed in participants who achieved a Clinical Complete Response (cCR) or Near Complete Clinical Response (nCR) after rectal cancer treatment by ctDNA status with the C2i assay.

5 years
EORTC-QLQ-CR 29 questionnaire
Tidsramme: Up to 30 months

European Organization for Research and Treatment of Cancer-Colorectal surgery (EORTC-QLQ-CR 29) is a 29-item patient-reported questionnaire to assess health-related quality of life in patients with colorectal cancer.

Each question ranges in score from 1 to 4. Higher scores indicate higher levels of symptoms or less functioning.

Up to 30 months
FACT-C questionnaire
Tidsramme: Up to 30 months

Functional Assessment of Cancer Therapy- Colorectal (FACT-C) is a 37-item patient-reported questionnaire to assess quality of life in patients with colorectal. FACT-C questions are divided into four primary quality of life domains: Physical Well-Being, Social/Family Well-Being, Emotional Well-Being, and Functional Well-Being.

Participants rate each item on the questionnaire from 0 to 4. Total score range is from 0 to 136. Higher scores generally indicate better quality of life.

Up to 30 months
IADL Scale
Tidsramme: Up to 30 months

Instrumental Activities of Daily Living (IADL) Scale is an 8-item patient-reported questionnaire with a summary score from 0 (low function) to 8 (high function).

IADLs are things you do every day to independently take care of yourself and your home.

Up to 30 months
Brief Pain Inventory (BPI) questionnaire
Tidsramme: Up to 30 months

Brief Pain Inventory (BPI) is a questionnaire to measure the severity and interference of pain on daily functions in participants with cancer.

BPI scale total score:

  • worst pain score: 1-4 = mild pain
  • worst pain score: 5-6 = moderate pain
  • worst pain score: 7-10 = severe pain
Up to 30 months
Bowel function assessment with LARS score
Tidsramme: Up to 30 months

Low Anterior Resection Syndrome (LARS) score (LARS) is a 5-item questionnaire to assess bowel dysfunction following a low anterior resection for rectal cancer.

LARS total score:

  • 0-20 = no dysfunction
  • 21-29 = minor dysfunction
  • 30-42 = major dysfunction
Up to 30 months
Bowel function assessment with FISI score
Tidsramme: Up to 30 months

Fecal Incontinence Severity Index (FISI) is a patient-reported questionnaire that helps quantify the impact of adult incontinence leakage on quality of life.

Total score range is from 0 to 61. Higher scores indicate a higher perceived severity of fecal incontinence and related impact on quality of life.

Up to 30 months
Bowel function assessment with FIQOL score
Tidsramme: Up to 30 months

Fecal Incontinence Quality of Life (FIQOL) is a 29-item patient-reported questionnaire to assess quality of life of participants with fecal incontinence. The questionnaire has 4 subscales: lifestyle, coping/behavior, depression/self-perception and embarrassment.

Subscale scores range from 1 to 5 and are the average response to all items on each scale. Total FIQOL score is the sum of all four subscales. Lower scores indicate lower functional status and related quality of life.

Up to 30 months
Disease-free survival (DFS)
Tidsramme: Up to 30 months

Disease-free survival (DFS) is defined as the length of time after completion of rectal cancer treatment that the patient survives without any signs or symptoms of that cancer.

Up to 30 months
Overall Survival (OS)
Tidsramme: Up to 30 months

Overall survival (OS) is defined as the length of time after starting rectal cancer treatment that participants are still alive.

Up to 30 months

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Samarbeidspartnere

Etterforskere

  • Hovedetterforsker: Hannah J. Roberts, MD, Massachusetts General Hospital

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Antatt)

1. oktober 2026

Primær fullføring (Antatt)

1. juni 2028

Studiet fullført (Antatt)

1. juni 2030

Datoer for studieregistrering

Først innsendt

14. september 2022

Først innsendt som oppfylte QC-kriteriene

17. november 2022

Først lagt ut (Faktiske)

29. november 2022

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

4. november 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

2. november 2026

Sist bekreftet

1. november 2026

Mer informasjon

Begreper knyttet til denne studien

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

JA

IPD-planbeskrivelse

The Dana-Farber / Harvard Cancer Center encourages and supports the responsible and ethical sharing of data from clinical trials. De-identified participant data from the final research dataset used in the published manuscript may only be shared under the terms of a Data Use Agreement. Requests may be directed to Sponsor Investigator or designee. The protocol and statistical analysis plan will be made available on Clinicaltrials.gov only as required by federal regulation or as a condition of awards and agreements supporting the research.

IPD-delingstidsramme

Data can be shared no earlier than 1 year following the date of publication

Tilgangskriterier for IPD-deling

Contact the Partners Innovations team at http://www.partners.org/innovation

IPD-deling Støtteinformasjonstype

  • STUDY_PROTOCOL
  • SEVJE

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

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