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NCT07034118

Definitive Proton Radiotherapy Combined With Chemotherapy and Immunotherapy for Locally Advanced Esophageal Squamous Cell Carcinoma: A Phase I Clinical Study

Not yet recruiting Phase 1 Last updated 24 June 2025
What this trial tests

Phase 1 trial testing Proton radiotherapy in Esophageal Carcinoma in 23 participants. Not yet recruiting.

Timeline
1 August 2025
Primary endpoint
31 August 2027
31 August 2028

Quick facts

Lead sponsorAnhui Provincial Hospital
PhasePhase 1
StatusNot yet recruiting
Study typeINTERVENTIONAL
Allocationnon randomized
Designsingle group
Maskingnone
Primary purposetreatment
Enrollment23
Start date1 August 2025
Primary completion31 August 2027
Estimated completion31 August 2028
Sites1 location across China

Drugs / interventions tested

Conditions studied

Sponsor

Anhui Provincial Hospital

Who can join

Adults 18 to 75, any sex, with Esophageal Carcinoma. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

The standard treatment for locally advanced esophageal squamous cell carcinoma (ESCC) is definitive concurrent chemoradiotherapy (CCRT). However, conventional photon-based radiotherapy is associated with excessive radiation exposure to normal tissues and a high incidence of treatment-related toxicities. Proton radiotherapy, one of the major advances in radiation oncology in recent years, offers the dosimetric advantage of reduced radiation to surrounding normal tissues, thereby decreasing the rate of adverse events. Two recent clinical studies have suggested that, compared with conventional photon radiotherapy, proton radiotherapy can significantly reduce the incidence of treatment-related toxicities and potentially improve patient survival outcomes. Immune checkpoint inhibitors (ICIs) have been widely used in both locally advanced and advanced esophageal cancer and have demonstrated promising clinical efficacy. Preliminary results from several ongoing phase III clinical trials indicate that combining ICIs with concurrent chemoradiotherapy is both safe and effective. Moreover, proton radiotherapy, by minimizing the low-dose radiation exposure to circulating peripheral lymphocytes, may better preserve systemic immune function. Therefore, compared to photon therapy, proton radiotherapy may theoretically enhance the synergistic effect when combined with ICIs, offering a potential survival benefit. Based on this rationale, we propose a phase I clinical trial to investigate the safety and preliminary efficacy of definitive proton chemoradiotherapy combined with immune checkpoint inhibition in patients with locally advanced esophageal squamous cell carcinoma.

Publications & conference data

No peer-reviewed publications indexed yet for this trial.

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Other trials of Proton radiotherapy

Trials testing the same drug.

Other recruiting trials for Esophageal Carcinoma

Currently open trials in the same condition.

Other Anhui Provincial Hospital trials

Trials by the same sponsor.

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Data sources for this page

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