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Hypofractionated Radiotherapy After Complete Resection for Stage II/III Thymic Epithelial Tumors (TET-HFRT40)

A Prospective, Single-Arm Phase II Clinical Study of Hypofractionated Adjuvant Radiotherapy After Complete Resection for Stage II/III Thymic Epithelial Tumors

This is a prospective, open-label, single-arm Phase II study designed to evaluate the safety of postoperative hypofractionated radiotherapy in patients with Stage II/III thymic epithelial tumors after complete resection. After a screening period of up to 28 days, eligible patients will receive adjuvant hypofractionated radiotherapy to a total dose of 40 Gy in 15 fractions, delivered once daily at 2.67 Gy per fraction, 5 days per week over 3 weeks. The study will primarily assess treatment-related safety and tolerability, with preliminary evaluation of efficacy, economic burden, and quality of life.

Studienübersicht

Status

Rekrutierung

Bedingungen

Intervention / Behandlung

Studientyp

Interventionell

Einschreibung (Geschätzt)

49

Phase

  • Phase 2

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienkontakt

Studienorte

    • Tianjin Municipality
      • Tianjin, Tianjin Municipality, China, 300060
        • Rekrutierung
        • Tianjin Medical University Cancer Institute and Hospital
        • Kontakt:

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

  • Erwachsene
  • Älterer Erwachsener

Akzeptiert gesunde Freiwillige

Nein

Beschreibung

Inclusion Criteria:

  1. Patients who voluntarily agree to participate in this study, sign the informed consent form, demonstrate good compliance, and are willing to comply with scheduled follow-up visits.
  2. Age 18-75 years, male or female.
  3. Histopathologically confirmed thymoma or thymic carcinoma after R0 complete resection. Eligible disease stages according to the Masaoka-Koga staging system include Stage II-III thymic carcinoma, Stage IIA Type B3 thymoma, Stage IIB Type B2/B3 thymoma, and Stage III thymoma.
  4. Eastern Cooperative Oncology Group performance status of 0-1.
  5. Life expectancy of at least 3 months.
  6. Adequate major organ function to meet the requirements of study treatment, including bone marrow, hepatic, renal, and coagulation function according to protocol-specified criteria.
  7. Patients with reproductive potential must agree to use medically acceptable contraception during study treatment and for 6 months after completion of study treatment. Female patients of childbearing potential must have a negative pregnancy test before enrollment and must not be breastfeeding.

Exclusion Criteria:

  1. Patients who do not meet the protocol-specified requirements for pathological type, disease stage, or histological subtype.
  2. Patients who have not undergone surgical treatment, or who underwent R1 or R2 resection, or who have definite gross residual disease.
  3. Prior thoracic radiotherapy.
  4. Major surgery other than the tumor resection procedure or severe trauma within 4 weeks before the first radiotherapy treatment.
  5. Uncontrolled pleural effusion, pericardial effusion, or ascites requiring repeated drainage.
  6. Prior or ongoing non-protocol-specified antitumor therapy, including immunotherapy, targeted therapy, radiotherapy, or other investigational treatment.
  7. Active autoimmune disease or a history of severe autoimmune disease that, in the investigator's judgment, makes the patient unsuitable for radiotherapy.
  8. History of immunodeficiency, including HIV positivity, history of organ transplantation, or history of allogeneic bone marrow transplantation.
  9. Uncontrolled severe cardiovascular disease, such as New York Heart Association Class II or higher heart failure, unstable angina, myocardial infarction within 1 year, or severe arrhythmia requiring clinical intervention.
  10. Severe infection within 4 weeks before the first radiotherapy treatment, or active pulmonary inflammation indicated by baseline imaging.
  11. History of interstitial lung disease, history of non-infectious pneumonitis, or Grade 3 or higher pulmonary dysfunction confirmed by pulmonary function testing.
  12. Active pulmonary tuberculosis, active hepatitis B infection, or active hepatitis C infection.
  13. Diagnosis of another malignancy before the first radiotherapy treatment, except for low-risk malignancies that have been adequately treated.
  14. Any other condition that, in the investigator's judgment, may affect patient safety, compliance, or the collection of study data.

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Behandlung
  • Zuteilung: N / A
  • Interventionsmodell: Einzelgruppenzuweisung
  • Maskierung: Keine (Offenes Etikett)

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Experimental: RT
The investigational treatment consists of postoperative hypofractionated radiotherapy delivered at a total dose of 40 Gy in 15 fractions (2.67 Gy per fraction), administered 5 days per week.

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Incidence of Treatment-Related Grade 2 or Higher Acute Adverse Events
Zeitfenster: Up to 3 months
Percentage of participants who experience treatment-related Grade 2 or higher acute adverse events from the start of radiotherapy to 3 months after completion of radiotherapy, assessed according to the National Cancer Institute Common Terminology Criteria for Adverse Events version 5.0 (NCI-CTCAE v5.0).
Up to 3 months

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Disease-Free Survival
Zeitfenster: Up to 3 years
Time from the start of radiotherapy to the first documented disease recurrence, distant metastasis, or death from any cause, whichever occurs first.
Up to 3 years
Overall Survival
Zeitfenster: Up to 3 years
Time from the start of radiotherapy to death from any cause.
Up to 3 years
Locoregional Recurrence Rate
Zeitfenster: Up to 3 years
ercentage of participants who develop locoregional recurrence during follow-up. Locoregional recurrence includes recurrence in the tumor bed, mediastinum, pleura, or regional lymph nodes, as assessed by imaging, pathology, or clinical evaluation.
Up to 3 years
Distant Metastasis Rate
Zeitfenster: Up to 3 years
Percentage of participants who develop distant metastasis during follow-up, as assessed by imaging, pathology, or clinical evaluation.
Up to 3 years
All-Cause Mortality Rate
Zeitfenster: Up to 3 years
Percentage of participants who die from any cause during follow-up.
Up to 3 years
Incidence of Treatment-Related Late Adverse Events
Zeitfenster: From 6 months after completion of radiotherapy to 3 years
Percentage of participants who experience treatment-related late adverse events occurring 6 months or later after completion of radiotherapy, including pulmonary, cardiac, esophageal, or other late adverse events, assessed according to NCI-CTCAE v5.0.
From 6 months after completion of radiotherapy to 3 years
Total Economic Cost
Zeitfenster: Up to 3 years
Total economic cost per participant during the study period, including direct medical costs, non-medical costs, and indirect costs. Direct medical costs include radiotherapy costs, radiotherapy-related symptomatic treatment costs, and costs for the management of toxic and adverse reactions. Non-medical and indirect costs include transportation costs, accommodation costs, and lost work or companion time costs. Costs will be calculated in Chinese Yuan.
Up to 3 years
Quality of Life Score Assessed by EORTC QLQ-C30
Zeitfenster: Up to 3 years
Quality of life will be assessed using the European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire-Core 30 (EORTC QLQ-C30). The global health status/quality of life score will be recorded at baseline and predefined follow-up visits. Scores range from 0 to 100, with higher scores indicating better global health status/quality of life.
Up to 3 years
Swallowing Function Score Assessed by the Standardized Swallowing
Zeitfenster: Up to 3 years
Swallowing function will be assessed using the Standardized Swallowing Assessment (SSA). The total SSA score will be recorded at baseline and predefined follow-up visits, with higher scores indicating worse swallowing function.
Up to 3 years

Andere Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Odds Ratios for Cardiac-Related Disease Occurrence According to Predefined Cardiac and Coronary Artery Dose Parameters
Zeitfenster: From baseline to up to 3 years after radiotherapy
Odds ratios for cardiac-related disease occurrence per 1-Gy increase in predefined cardiac and coronary artery dose parameters will be estimated using logistic regression. Predefined dose parameters will include mean heart dose and coronary artery substructure dose parameters, measured in Gray (Gy) from the radiotherapy treatment plan. Cardiac-related disease occurrence will be defined as the occurrence of clinically diagnosed cardiac disease or cardiac adverse events during follow-up, assessed by clinical cardiac evaluation and NCI-CTCAE v5.0. Cardiac-related diseases or adverse events may include coronary artery disease, myocardial ischemia or infarction, arrhythmia, heart failure, pericardial disease, or other clinically diagnosed cardiac events.
From baseline to up to 3 years after radiotherapy

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Sponsor

Ermittler

  • Hauptermittler: Wencheng Zhang, M.D., Tianjin Medical University Cancer Institute and Hospital

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Geschätzt)

14. Juli 2026

Primärer Abschluss (Geschätzt)

30. Juni 2027

Studienabschluss (Geschätzt)

30. Juni 2029

Studienanmeldedaten

Zuerst eingereicht

1. Juli 2026

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

8. Juli 2026

Zuerst gepostet (Tatsächlich)

9. Juli 2026

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

10. Juli 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

8. Juli 2026

Zuletzt verifiziert

1. Juli 2026

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Zusätzliche relevante MeSH-Bedingungen

Andere Studien-ID-Nummern

  • E20260837

Plan für individuelle Teilnehmerdaten (IPD)

Planen Sie, individuelle Teilnehmerdaten (IPD) zu teilen?

NEIN

Arzneimittel- und Geräteinformationen, Studienunterlagen

Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt

Nein

Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Nein

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