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A Randomized Controlled Trial Evaluating of Prophylactic Irradiation in CRT for cT1bN0M0 ESCC

A Randomized Controlled Phase III Trial of Comparing Local Field With Additional Prophylactic Irradiation in Chemoradiotherapy for Clinical-T1bN0M0 Esophageal Cancer

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04328948
Acronym
ARMADILLO
Enrollment
280
Registered
2020-04-01
Start date
2020-07-01
Completion date
2030-03-31
Last updated
2025-05-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Esophageal Squamous Cell Carcinoma

Keywords

Esophageal squamous cell carcinoma, chemoradiotherapy, Radiation Field

Brief summary

This study is conducted to investigate whether modified chemoradiotherapy with elective nodal irradiation reduces the locoregional recurrence that cannot be completely resected by salvage endoscopic resection and preserve esophagus without compromising overall survival.

Interventions

RADIATIONChemoradiotherapy

Chemoradiotherapy

Sponsors

National Cancer Center, Japan
Lead SponsorOTHER_GOV

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
20 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Histologically proven squamous cell carcinoma, adenosquamous carcinoma, or basaloid cell carcinoma. 2. All lesions located in the thoracic esophagus. Secondary lesions with an absolute indication for endoscopic resection (EMR/ESD) may not be confined to the thoracic esophagus. 3. Clinical N0M0 with cervical to abdominal contrast-enhanced CT. 4. The deepest lesion is diagnosed as cT1b (SM1 / SM2 / SM3) with upper gastrointestinal endoscopy. If it is difficult to differentiate cT1a-MM and cT1b-SM1 clinically, the wall depth is diagnosed as cT1b-SM1. 5. Aged 20 years and older. 6. ECOG Performance status 0 or 1. 7. No previous therapy against esophageal cancer except for complete resection by EMR/ESD with either pT1a-LPM (pM2) / pT1a-MM (M3) disease or pT1a-MM (M3) disease without vascular infiltration. 8. No history of radiotherapy for the neck, chest, and upper abdomen for any cancers. No chemotherapy or hormone therapy with less than 3 years of disease-free interval for any cancers. 9. Major organ function is preserved. 1) WBC\<=12,000/mm3 2) ANC\>=1,500/mm3 3) Hb\>=10.0 g /dL 4) PLT\>=10,000/mm3 5) T-bil\<=1.5 mg /dL 6) AST\<=100 IU/L 7) ALT\<=100 IU/L 8) SpO2\>=95% 9) Ccr\>=60 mL/min 10. Patients do not have a preference to receive a surgical resection as an initial therapy after receiving explanations. 11. Written informed consent is obtained.

Exclusion criteria

1. Simultaneous or metachronous (within 5 years) double cancers, except for intramucosal tumor curable with local therapy. 2. Active infection requiring systemic therapy. 3. Fever over 38 degrees Celsius 4. Female during pregnancy, within 28 days of post parturition, or during lactation. Male who wants a partner's pregnancy. 5. Psychological disorder, which is difficult to participate in this clinical study. 6. Receiving continuous systemic corticosteroid or immunosuppressant treatment. 7. Positive for HBs antigen or HIV antigen. 8. Diabetes mellitus, which is uncontrollable with continuous use of insulin or hypoglycemic agents. 9. Uncontrolled arterial hypertension. 10. History of unstable angina pectoris within three weeks or myocardial infarction within six months before registration. 11. Uncontrolled valvular disease, dilated cardiomyopathy, and hypertrophic cardiomyopathy. 12. Severe emphysema, interstitial pneumonia or pulmonary fibrosis based on chest CT. 13. With a history of cerebrovascular disorder within 6 months. 14. Drug allergy for iodic drugs.

Design outcomes

Primary

MeasureTime frameDescription
Major progression-free survivalThe primary analysis will be held 5-years after the last patient was enrolled.If the remnant lesion in the esophagus or a recurrent lesion after complete response (CR) can be curatively removed by salvage EMR/ESD, it is not an event, and other progressions and deaths are events.

Secondary

MeasureTime frameDescription
Progression-free survivalThe primary analysis will be held 5-years after the last patient was enrolled.From date of randomization to date of progression or death, whichever occurs first, approximately 5 years.
Complete response rateThe primary analysis will be held 5-years after the last patient was enrolled.CR was defined as disappeared primary tumors without the presence of ulceration or malignant cells in biopsy specimens under endoscopy.
Overall survivalThe primary analysis will be held 5-years after the last patient was enrolled.From date of randomization to date of death, approximately 5 years.
Adverse eventsThe primary analysis will be held 5-years after the last patient was enrolled.Number of participants with treatment-related adverse events during CRT as assessed by CTCAE v4.0
Long term toxicityThe primary analysis will be held 5-years after the last patient was enrolled.Number of participants with treatment-related adverse events after termination of CRT as assessed by CTCAE v4.0
Esophagectomy-free survivalThe primary analysis will be held 5-years after the last patient was enrolled.From date of randomization to date of esophagectomy or death, whichever occurs first, approximately 5 years.

Countries

Japan

Contacts

Primary ContactMotoo Nomura, MD/PhD
mnomura@kuhp.kyoto-u.ac.jp81335422511

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026