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A Study on Non-invasive Early Diagnosis of Gastrointestinal Stromal Tumors and Differentiation of Benign and Malignant Nodules

8 mei 2020 bijgewerkt door: The First Affiliated Hospital with Nanjing Medical University
Gastrointestinal Stromal Tumors (GIST) is the most common mesenchymal tumor of the gastrointestinal tract, and the incidence rate in China has increased year by year in recent years.Gastrointestinal stromal tumors are not sensitive to radiotherapy and traditional infusion chemotherapy. Currently, they are generally treated with surgery, but they are prone to recurrence and metastasis.For nodules with a particle size between 2 and 5 cm, there may be both benign and malignant, and there is still a lack of fast and accurate methods for distinguishing benign and malignant.Many benign nodules were removed (in the pathological examination of postoperative resected tissue). In addition, if it is found to be late, there is a possibility of invading surrounding tissues and metastasis, so that it is impossible to cure. Therefore, early diagnosis and early surgery and benign and malignant differentiation of small nodules are the key to the clinical diagnosis and treatment of gastrointestinal stromal tumors.At present, second-generation gene sequencing (NGS) and liquid biopsy are rarely reported in the field of GIST. A few domestic and foreign studies have found that it can detect rare mutation types, and may find secondary gene mutations early, which has potential applicability, but Overall, the clinical guidance of these NGS-based studies focuses on prognosis and drug resistance , as well as some studies based on low-throughput platforms. Therefore, early diagnosis and benign and malignant discrimination based on high-throughput sequencing and liquid biopsy have significant clinical significance for the diagnosis and treatment of gastrointestinal stromal tumors.

Studie Overzicht

Toestand

Onbekend

Conditie

Interventie / Behandeling

Studietype

Observationeel

Inschrijving (Verwacht)

300

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studie Locaties

  • China
    • Jiangsu
      • Nanjing, Jiangsu, China, 210029
        • Werving
        • First Affiliated Hospital of Nanjing Medical University
        • Contact:

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

  • Kind
  • Volwassen
  • Oudere volwassene

Accepteert gezonde vrijwilligers

Nee

Geslachten die in aanmerking komen voor studie

Allemaal

Bemonsteringsmethode

Kanssteekproef

Studie Bevolking

Gastrointestinal stromal tumor patients in Jiangsu Provincial People's Hospital

Beschrijving

Inclusion Criteria:

  • Patients who are scheduled for stromal tumor resection
  • Signed informed consent

Exclusion Criteria:

  • the vital signs are not stable
  • unconscious
  • unwilling to cooperate

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

Cohorten en interventies

Groep / Cohort
Interventie / Behandeling
The construction of Gene detection technology flow
At this stage, a small panel targeted high-throughput sequencing process for gastrointestinal stromal tumors was established, and the association of tumor-associated mutation profiles in different patients with clinical stage was initially explored. It is planned to collect about 100 cases of gastrointestinal stromal tumors after surgery (freezing tissue or FFPE sections), DNA extraction and high-throughput sequencing of small panels, and analysis of the relationship between the mutation spectrum of each sample and the corresponding patient clinical data (staging).
Ander: DNA extraction of tumer tissue samples and high-throughput sequencing of small panels
DNA extraction of stromal tumor tissues and high-throughput sequencing of small panels were performed, and the relationship between the mutation spectrum of each sample and the corresponding patient clinical data (staging) was analyzed
Establishment of non-invasive gene testing technology process
In this stage, we plan to establish a small panel of peripheral blood cfDNA targeting high-throughput sequencing process, and verify the consistency of peripheral blood cfDNA and tissue gDNA in gene detection of gastrointestinal stromal tumors. About 50 patients were planned to be enrolled. Peripheral blood was collected once for each patient and the blood volume was 10mL. Meanwhile, the tumor tissue samples were collected within 5mm in diameter, depending on the size of the lesion . DNA extraction and small panel sequencing were performed for the two types of samples of the patients respectively, and the DNA sequencing results of the two types of samples were compared, and the clinical data of the corresponding patients were referenced to evaluate the consistency of the results of peripheral blood cfDNA and tissue gDNA for the gene detection of gastrointestinal stromal tumor.
Ander: DNA extraction of tumer tissue samples and blood sample and high-throughput sequencing of small panels
DNA extraction and small panel sequencing were performed for the two types of samples of the patients respectively, and the DNA sequencing results of the two types of samples were compared, and the clinical data of the corresponding patients were referenced to evaluate the consistency of the results of peripheral blood cfDNA and tissue gDNA for the gene detection of gastrointestinal stromal tumor
Ander: DNA extraction of tumer tissue samples and blood sample and high-throughput sequencing of small panels
DNA extraction and small panel sequencing were conducted for each patient sample. Based on the indicator results of the previous mutant spectrum for each stage of gastrointestinal stromal tumor, the clinical stage classification of patients and the benign and malignant nodules were determined by the mutant spectrum, and compared with the real clinical data of patients
Prospective cohort (double-blind recommended)
Peripheral blood of about 150 patients was collected once and the blood volume was 10mL . Meanwhile, the tumor tissue samples were collected within 5mm in diameter, depending on the size of the lesion. Patients focus on the early stage of stromal tumors or those whose size under gastroenteroscopy is between 2 and 5 cm. DNA extraction and small panel sequencing were conducted for each patient sample. Based on the indicator results of the previous mutation spectrum for each stage of gastrointestinal stromal tumor, the clinical stage classification of patients and the benign and malignant nodules were determined by the mutation spectrum, and compared with the real clinical data of patients.
Ander: DNA extraction of tumer tissue samples and blood sample and high-throughput sequencing of small panels
DNA extraction and small panel sequencing were performed for the two types of samples of the patients respectively, and the DNA sequencing results of the two types of samples were compared, and the clinical data of the corresponding patients were referenced to evaluate the consistency of the results of peripheral blood cfDNA and tissue gDNA for the gene detection of gastrointestinal stromal tumor
Ander: DNA extraction of tumer tissue samples and blood sample and high-throughput sequencing of small panels
DNA extraction and small panel sequencing were conducted for each patient sample. Based on the indicator results of the previous mutant spectrum for each stage of gastrointestinal stromal tumor, the clinical stage classification of patients and the benign and malignant nodules were determined by the mutant spectrum, and compared with the real clinical data of patients

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Genetic mutations of patients with stromal tumor assessed by next-generation sequencing
Tijdsspanne: 2019.8-2019.10
DNA extraction of tumer tissue samples ,Preliminary exploration of tumor related mutation spectrum in different patients by gene sequencing
2019.8-2019.10

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Genetic mutations of patients with stromal tumor assessed by next-generation sequencing
Tijdsspanne: 2019.11-2020.5
DNA extraction of tumer tissue samples and blood tissue .To evaluate the consistency of peripheral blood cfDNA and tissue gDNA in gene detection of gastrointestinal stromal tumors,Using mutational spectra to determine the clinical stage of the patient and the benign and malignant small nodules
2019.11-2020.5

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Sponsor

The First Affiliated Hospital with Nanjing Medical University

Medewerkers

Fudan University

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start (Werkelijk)

1 september 2019

Primaire voltooiing (Verwacht)

31 mei 2020

Studie voltooiing (Verwacht)

31 mei 2020

Studieregistratiedata

Eerst ingediend

18 oktober 2019

Eerst ingediend dat voldeed aan de QC-criteria

27 oktober 2019

Eerst geplaatst (Werkelijk)

29 oktober 2019

Updates van studierecords

Laatste update geplaatst (Werkelijk)

11 mei 2020

Laatste update ingediend die voldeed aan QC-criteria

8 mei 2020

Laatst geverifieerd

1 mei 2020

Meer informatie

Termen gerelateerd aan deze studie

Aanvullende relevante MeSH-voorwaarden

Andere studie-ID-nummers

  • 2019-SR-358

Informatie over medicijnen en apparaten, studiedocumenten

Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel

Nee

Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct

Nee

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