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Evaluation of Circulating Tumor DNA Guided Surveillance Strategy of Stage III Colorectal Cancer: an Open, Prospective, Randomized Controlled Cohort Study

3 dicembre 2021 aggiornato da: Junjie Peng, Fudan University
For patients with stage III colon cancers, radical resection of primary tumor followed by adjuvant chemotherapy is currently the standard treatment. Adjuvant chemotherapy with 5-fluorouracil and oxaliplatin based regimen has been proved effective to improve recurrence-free survival and overall survival. Approximately half of patients with stage III colon cancers can be cured by surgery alone, while a substantial number of patients still experience recurrence, even with standard adjuvant chemotherapy. In recent years, circulating tumor DNA (ctDNA) has been detected in the cell-free component of peripheral blood samples in advanced colorectal cancers and many other solid tumors. Several previous studies have suggested that in patients with stage I-III colorectal cancer, postoperative ctDNA was an valuable biomarker to predict minimal residual disease (MRD) after radical resection, thus redefining patients risk outcome groups and guiding postoperative treatment. In addition, recent studies based on serial postoperative ctDNA detection showed that serial ctDNA analyses revealed disease recurrence up to 5-16.5 months ahead of radiological imaging. Here, based on the role of ctDNA in predicting MRD, we conducted an open, prospective, randomized controlled phase II cohort study to explore if ctDNA can as a biomarker to guide personalized surveillance strategy after surgery.

Panoramica dello studio

Tipo di studio

Interventistico

Iscrizione (Anticipato)

316

Fase

  • Non applicabile

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Contatto studio

Backup dei contatti dello studio

Luoghi di studio

    • Shanghai
      • Shanghai, Shanghai, Cina, 200032
        • Reclutamento
        • Fudan University Shanghai Cancer Center
        • Contatto:
        • Contatto:

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

Da 18 anni a 80 anni (Adulto, Adulto più anziano)

Accetta volontari sani

No

Sessi ammissibili allo studio

Tutto

Descrizione

Inclusion Criteria:

  • Age ≥ 18 and ≤80 years old, regardless of gender;
  • Personal status (PS) score as over 80 or Eastern Cooperative Oncology Group (ECOG) score as 0 ~ 2;
  • Pathologically confirmed as stage III colorectal cancer;
  • Radical operation performed ;
  • With expected survival of more than 12 months;
  • The subjects (or their legal representative / Guardian) must sign the informed consent form, indicating that they understand the purpose of the study, understand the necessary procedures of the study, and are willing to participate in the study.

Exclusion Criteria:

  • Neoadjuvant therapy performed before operation;
  • Blood transfusion performed during operation or within 2 weeks before operation;
  • Incomplete baseline samples, including preoperative plasma samples, surgical tumor tissue samples and plasma samples 3-7 days after operation;
  • Two consecutive test points missing or three plasma samples missing in total before a positive ctDNA time point
  • Pregnant or lactating women who have fertility and do not take adequate contraceptive measures;
  • Have a history of other malignant tumors within 5 years, except cured cervical carcinoma in situ or non melanoma skin cancer;
  • Primary brain tumor or central nerve metastasis is not under control, with obvious intracranial hypertension or neuropsychiatric symptoms;
  • Patients with the following serious or uncontrollable diseases: severe heart disease, the condition is still unstable after treatment, including myocardial infarction, congestive heart failure, unstable angina pectoris, pericardial effusion with obvious symptoms or unstable arrhythmia within 6 months before enrollment; definite neuropathy or psychosis, including dementia or seizures; severe or uncontrolled infection; active disseminated intravascular coagulation and obvious bleeding tendency;
  • Significant impairment of important organ function;
  • Other conditions in which the investigator believes that the patient should not participate in this trial.

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Diagnostico
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione parallela
  • Mascheramento: Nessuno (etichetta aperta)

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Sperimentale: ctDNA dynamic monitoring + routine postoperative follow-up

ctDNA is detected before operation, before chemotherapy, and then every three months for 2 years, 10 times in total. At the same time, routine postoperative follow-up is given.

To be pointed out, after the completion of the adjuvant chemotherapy, if the ctDNA test indicates positive, patients will immediately perform chest, abdominal and pelvic CT and other imaging tests to determine whether there is recurrence /metastasis. If it is not confirmed, repeat the imaging review every two months, and continue to perform ctDNA test every three months. If the following ctDNA test is negative for two consecutive times, the above imaging reexamination will return to the routine follow-up frequency. In addition, during the follow-up, the following situations may occur: the imaging examination has found recurrence/metastasis, but the ctDNA test is still negative. At this time, the patient will be informed and treated in time of the recurrence/metastasis.

ctDNA is detected before operation, before chemotherapy, and then every three months for 2 years, 10 times in total.
Nessun intervento: routine postoperative follow-up
Only routine postoperative follow-up is given as follows: Physical examination and CEA were performed every 3-6 months for the first 2 years, every 6 months within the third to fifth year, and then annually. Chest/abdominal/pelvis computed tomography was performed annually for up to 5 years, and colonoscopy was performed for proper patients the first year after treatment and repeated in the third year if no advanced adenoma was found and then every 5 years.

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Sensitivity of postoperative ctDNA in monitoring recurrence and metastasis
Lasso di tempo: Up to 60 months.
Number of patients with ctDNA positive and imaging confirmed recurrence or metastasis / number of all imaging confirmed recurrence or metastasis
Up to 60 months.
Specificity of postoperative ctDNA in monitoring recurrence and metastasis
Lasso di tempo: Up to 60 months.
Number of patients with ctDNA negative and no recurrence and metastasis confirmed by imaging / number of patients with no recurrence and metastasis confirmed by imaging
Up to 60 months.
Accuracy of postoperative ctDNA in monitoring recurrence and metastasis
Lasso di tempo: Up to 60 months.
True positive+True negative/sample size
Up to 60 months.
Secondary resection rate
Lasso di tempo: Up to 60 months.
The rate of R0 resection for recurrence or metastasis after surgery of the primary
Up to 60 months.

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
ctDNA-disease free survival (DFS)
Lasso di tempo: Under ctDNA monitoring, from date of randomization until the date of first documented recurrence or date of death from any cause, whichever came first, assessed up to 60 months.
Disease free survival time under ctDNA monitoring
Under ctDNA monitoring, from date of randomization until the date of first documented recurrence or date of death from any cause, whichever came first, assessed up to 60 months.
CT-DFS
Lasso di tempo: Under imaging monitoring, from date of randomization until the date of first documented recurrence or date of death from any cause, whichever came first, assessed up to 60 months.
Disease free survival time under imaging monitoring
Under imaging monitoring, from date of randomization until the date of first documented recurrence or date of death from any cause, whichever came first, assessed up to 60 months.
△DFS
Lasso di tempo: Up to 60 months.
The difference between ctDNA-DFS and CT-DFS
Up to 60 months.
sopravvivenza globale (OS)
Lasso di tempo: Dalla data di randomizzazione fino alla data della prima data documentata di morte per qualsiasi causa, valutata fino a 60 mesi.
Sopravvivenza globale dei pazienti inclusi
Dalla data di randomizzazione fino alla data della prima data documentata di morte per qualsiasi causa, valutata fino a 60 mesi.
ctDNA clearance rate
Lasso di tempo: Up to 60 months.
The rate of ctDNA positive before chemotherapy that turns negative after adjuvant chemotherapy
Up to 60 months.

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Effettivo)

1 novembre 2021

Completamento primario (Anticipato)

1 settembre 2022

Completamento dello studio (Anticipato)

1 settembre 2024

Date di iscrizione allo studio

Primo inviato

21 novembre 2021

Primo inviato che soddisfa i criteri di controllo qualità

3 dicembre 2021

Primo Inserito (Effettivo)

17 dicembre 2021

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

17 dicembre 2021

Ultimo aggiornamento inviato che soddisfa i criteri QC

3 dicembre 2021

Ultimo verificato

1 dicembre 2021

Maggiori informazioni

Termini relativi a questo studio

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

No

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 .

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