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Hypofractionated Radiotherapy Followed by Chemo-immunotherapy Induction Therapy

NCT06914050 · Status: NOT_YET_RECRUITING · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 30

Last updated 2025-04-25

No results posted yet for this study

Summary

Radiotherapy can activate local and systemic immune responses through a variety of mechanisms, which can enhance anti-tumor immune effects. The dose fractionation pattern of radiotherapy has an important influence on the occurrence of immune-induced effects. Stereotactic body radiation therapy (SBRT) has obvious advantages in activating interferon effects and inducing abscopal effects. SBRT combined with immunity can enhance the abscopal effect induced by radiotherapy and play a synergistic role. The 8Gy×3 fractionation scheme is currently the most widely used stereotactic radiotherapy scheme. Because we conducted this study, the primary lesion received large-fraction partial tumor irradiation and then received adebrelimab combined with chemotherapy induction treatment for 2 cycles, followed by sequential chest radiotherapy for the treatment of limited-stage small cell lung cancer, to explore the effectiveness and safety.

Conditions

  • Lung Cancer, Small Cell
  • Limited-stage Small Cell Lung Cancer (LS-SCLC)

Interventions

DRUG

Adebrelimab

Induction therapy：Adebrelimab, 1200mg, d1, q3w, 2 cycles; Maintenance therapy：Adebrelimab, 1200mg, d1, q3w, until disease progression or unbearable toxicity.

DRUG

EC/EP

Chemotherapy: standard chemotherapy EC/EP

RADIATION

SBRT

8Gy\*3

RADIATION

Chest radiotherapy

Chest radiotherapy: conventional fractionation mode 2Gy QD total dose 60Gy or 1.5Gy BID total dose 45Gy, according to the patient's physical condition, concurrent EP or EC chemotherapy can be considered

Sponsors & Collaborators

  • Tianjin Medical University Cancer Institute and Hospital

    lead OTHER

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
70 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2025-04-30
Primary Completion
2026-04-30
Completion
2028-04-30

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06914050 on ClinicalTrials.gov