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Induction Chemo-Immunotherapy + Radiotherapy vs Concurrent Chemoradiotherapy for Unresectable Locally Advanced Esophageal Squamous Cell Carcinoma

Efficacy and Safety of Induction Chemo-Immunotherapy Followed by Radiotherapy vs Concurrent Chemoradiotherapy in Unresectable Locally Advanced Esophageal Squamous Cell Carcinoma: A Randomized, Two-Arm, Phase II Study

This is a prospective, randomized, phase II clinical study in patients with unresectable stage III-IVA esophageal squamous cell carcinoma (ESCC). Eligible patients will be randomly assigned in a 1:1 ratio to two treatment groups. The experimental group will receive 3 cycles of induction therapy with PD-1 antibody plus chemotherapy, followed by radiotherapy, and then maintenance therapy with PD-1 antibody monotherapy. The control group will receive concurrent chemoradiotherapy, followed by maintenance therapy with PD-1 antibody monotherapy. The primary endpoints are the complete response (CR) rate at 3 months after radiotherapy (assessed by investigators) and the 1-year progression-free survival (PFS) rate. Secondary endpoints include overall survival (OS), progression-free survival (PFS), duration of response, objective response rate (ORR), local-regional recurrence-free survival (LRFS), distant metastasis-free survival (DMFS), quality of life, and safety profile.

Studienübersicht

Detaillierte Beschreibung

This is a prospective, randomized, two-arm, phase II clinical trial investigating induction chemo-immunotherapy followed by sequential radiotherapy versus concurrent chemo-immunotherapy plus radiotherapy in patients with unresectable locally advanced esophageal squamous cell carcinoma (ESCC).

Current standard of care for unresectable locally advanced ESCC is definitive concurrent chemoradiotherapy. However, outcomes remain suboptimal, with high rates of local recurrence and distant metastasis. The addition of PD-1 inhibitors to concurrent chemoradiotherapy has shown promising activity in recent studies, but optimal sequencing and integration of immunotherapy with radiotherapy are still under investigation.

This trial is designed to evaluate whether an induction strategy with chemo-immunotherapy followed by radiotherapy can improve response rates and long-term survival compared to the standard concurrent approach. Patients will be randomized to receive either:

  • Experimental arm: Three cycles of induction chemo-immunotherapy, followed by definitive thoracic radiotherapy, then maintenance immunotherapy for up to one year.
  • Control arm: Concurrent chemo-immunotherapy plus definitive thoracic radiotherapy, followed by maintenance immunotherapy for up to one year.

The primary objective is to compare the efficacy of the two regimens in terms of complete response and progression-free survival. Safety, tolerability, and quality of life will also be assessed to support the risk-benefit profile of each strategy.

Studientyp

Interventionell

Einschreibung (Geschätzt)

92

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

  • Name: Jian-Guo Zhou, PhD
  • Telefonnummer: +86-851-18212154044
  • E-Mail: jsdxzl@126.com

Studienorte

    • Guizhou
      • Zunyi, Guizhou, China, 563000
        • Rekrutierung
        • The Second Affiliated Hospital of Zunyi Medical University, Xinpu New District, Honghuagang District, Zunyi City, Guizhou Province
        • Kontakt:
          • lei zhou, Master
          • Telefonnummer: +86-851-18212154044
          • E-Mail: jsdxzl@126.com

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:

  • Histologically or cytologically confirmed unresectable stage III-IVA esophageal squamous cell carcinoma (ESCC)
  • Eastern Cooperative Oncology Group (ECOG) performance status 0-1
  • Adequate organ function (bone marrow, liver, renal, cardiac) within 2 weeks prior to randomization
  • Measurable or evaluable disease per RECIST 1.1
  • Willing to provide written informed consent

Exclusion Criteria:

  • Previous radiotherapy to the chest or previous systemic chemotherapy for ESCC
  • History of other malignancies within the last 5 years (except cured basal cell carcinoma or cervical carcinoma in situ)
  • Severe comorbidities (uncontrolled hypertension, NYHA class III-IV heart failure, active infection, etc.)
  • Known hypersensitivity to any study drugs (paclitaxel, cisplatin/carboplatin, PD-1 antibody)
  • Pregnant or lactating women
  • Participation in another clinical trial within 30 days prior to randomization

Studienplan

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

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Behandlung
  • Zuteilung: Zufällig
  • Interventionsmodell: Parallele Zuordnung
  • Maskierung: Vervierfachen

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Experimental: Experimental Group: Chemo-Immunotherapy Induction + Radiotherapy + PD-1 Maintenance
Patients receive 3 cycles of PD-1 antibody plus chemotherapy induction therapy, followed by thoracic radiotherapy (50.4Gy in 28 fractions), then PD-1 antibody maintenance therapy (200mg IV q3w, up to 1 year).
Paclitaxel 150-175 mg/m² combined with cisplatin 75 mg/m² or carboplatin AUC 5 (maximum 600 mg), administered intravenously every 3 weeks for 3 cycles, concurrent with PD-1 antibody induction therapy for unresectable stage III-IVA esophageal squamous cell carcinoma.
Aktiver Komparator: Control Group: Concurrent Chemoradiotherapy + PD-1 Maintenance
Patients receive weekly paclitaxel + cisplatin/carboplatin concurrent with thoracic radiotherapy (50.4Gy in 28 fractions), then PD-1 antibody maintenance therapy (200mg IV q3w, up to 1 year).
Paclitaxel 50 mg/m² combined with cisplatin 25 mg/m² or carboplatin AUC 5 (maximum 600 mg), administered intravenously once weekly for 5 cycles, concurrent with thoracic radiotherapy (50.4Gy in 28 fractions) for unresectable stage III-IVA esophageal squamous cell carcinoma.

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Complete Response (CR) Rate at 3 Months After Radiotherapy (Investigator-Assessed)
Zeitfenster: 3 months after completion of radiotherapy
Proportion of patients achieving complete response (CR) per RECIST 1.1, assessed by investigators at 3 months after completion of radiotherapy
3 months after completion of radiotherapy
1-Year Progression-Free Survival (PFS) Rate
Zeitfenster: 1 year after randomization
Proportion of patients alive and without disease progression at 1 year after randomization
1 year after randomization

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Overall Survival (OS)
Zeitfenster: Up to 3 years after randomization
Time from randomization to death from any cause
Up to 3 years after randomization
Progression-Free Survival (PFS)
Zeitfenster: Up to 3 years after randomization
Time from randomization to first documented disease progression or death from any cause, whichever occurs first
Up to 3 years after randomization
Duration of Response (DOR)
Zeitfenster: Up to 3 years after randomization
Time from first documentation of objective response (CR/PR) to first documented disease progression or death
Up to 3 years after randomization
Objective Response Rate (ORR)
Zeitfenster: Up to 3 years after randomization
Proportion of patients achieving CR or partial response (PR) per RECIST 1.1
Up to 3 years after randomization
Local Regional Failure-Free Survival (LRFS)
Zeitfenster: Up to 3 years after randomization
Time from randomization to first local or regional recurrence or death
Up to 3 years after randomization
Distant Metastasis-Free Survival (DMFS)
Zeitfenster: Up to 3 years after randomization
Time from randomization to first distant metastasis or death
Up to 3 years after randomization
Incidence of Treatment-Emergent Adverse Events (TEAEs)
Zeitfenster: From first study treatment to 30 days after last treatment
Incidence and severity of TEAEs (graded per CTCAE 5.0) during treatment and follow-up
From first study treatment to 30 days after last treatment
EORTC QLQ-OES18 Symptom Score Change
Zeitfenster: Baseline, 3 months, 6 months, 12 months after radiotherapy
Change in esophageal cancer-specific symptom score as assessed by the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Oesophageal 18 (EORTC QLQ-OES18) from baseline to post-treatment follow-ups. The scale ranges from 0 to 100, with higher scores indicating more severe symptoms and worse quality of life.
Baseline, 3 months, 6 months, 12 months after radiotherapy
EORTC QLQ-C30 Quality of Life Score Change
Zeitfenster: Baseline, 3 months, 6 months, 12 months after radiotherapy.
Change in quality of life score as assessed by the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 30 (EORTC QLQ-C30) from baseline to post-treatment follow-ups. The scale ranges from 0 to 100, with higher scores indicating better quality of life.
Baseline, 3 months, 6 months, 12 months after radiotherapy.

Mitarbeiter und Ermittler

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

Ermittler

  • Hauptermittler: Lei Zhou, Master, The Second Affiliated Hospital of Zunyi Medical University

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 (Tatsächlich)

1. Januar 2026

Primärer Abschluss (Geschätzt)

1. Januar 2028

Studienabschluss (Geschätzt)

30. Juni 2028

Studienanmeldedaten

Zuerst eingereicht

28. März 2026

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

26. April 2026

Zuerst gepostet (Tatsächlich)

30. April 2026

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

30. April 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

26. April 2026

Zuletzt verifiziert

1. April 2026

Mehr Informationen

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