Pre-Surgery If Needed for Oesophageal Cancer
- Conditions
- Esophageal Cancer
- Interventions
- Diagnostic Test: First clinical response evaluation (CRE-1)Diagnostic Test: Second clinical response evaluation (CRE-2)
- Registration Number
- NCT03937362
- Lead Sponsor
- Shanghai Chest Hospital
- Brief Summary
Prospective, multi-centre, diagnostic cohort study investigating the accuracy of positron emission tomography with computed tomography (PET-CT), endoscopic bite-on-bite biopsies and endoscopic ultrasonography (EUS) with fine-needle aspiration (FNA) for detecting residual disease after neoadjuvant chemoradiotherapy in patients with potentially curable esophageal squamous cell carcinoma (SCC).
- Detailed Description
After neoadjuvant chemoradiotherapy (nCRT) for esophageal cancer, high pathologically complete response (pCR) rates are being achieved in patients with squamous cell carcinoma (SCC). An active surveillance strategy has been proposed for SCC patients with clinically complete response (cCR) after nCRT. To justify omitting surgical resection, patients with residual disease should be accurately identified.
The objective of this study is to assess the accuracy of response evaluations after nCRT based on the preSANO trial, including positron emission tomography with computed tomography (PET-CT), endoscopic bite-on-bite biopsies and endoscopic ultrasonography (EUS) with fine-needle aspiration (FNA) in patients with potentially curable esophageal SCC.
Operable esophageal SCC patients who are planned to undergo nCRT according to the CROSS regimen and are planned to undergo surgery will be recruited from four Asian centers. Four to six weeks after completion of nCRT, patients will undergo a first clinical response evaluation (CRE-1) consisting of endoscopic bite-on-bite biopsies. In patients without histological evidence of residual tumor (i.e. without positive biopsies), surgery will be postponed another six weeks. A second clinical response evaluation (CRE-2) will be performed 10-12 weeks after completion of nCRT, consisting of PET-CT, endoscopic bite-on-bite biopsies and EUS with FNA. Immediately after CRE-2 all patients without evidence of distant metastases will undergo esophagectomy. Results of CRE-1 and CRE-2 as well as results of single diagnostic modalities will be correlated to pathological response in the resection specimen for calculation of sensitivity, specificity, negative predictive value and positive predictive value.
If the current study shows that major residual disease (\>10% residual carcinoma at the primary tumor site and any residual nodal disease) can be accurately (i.e. with sensitivity of 80.5%) detected in patients with esophageal SCC, a prospective trial will be conducted comparing active surveillance with standard esophagectomy in patients with a clinically complete response after nCRT (SINO trial).
Recruitment & Eligibility
- Status
- UNKNOWN
- Sex
- All
- Target Recruitment
- 400
Not provided
Not provided
Study & Design
- Study Type
- OBSERVATIONAL
- Study Design
- Not specified
- Arm && Interventions
Group Intervention Description Clinical Response Evaluation First clinical response evaluation (CRE-1) Patients with operable esophageal squamous cell carcinoma who are planned to undergo neoadjuvant chemoradiotherapy according to the CROSS regimen (intravenous carboplatin AUC 2 mg/mL/min and intravenous paclitaxel 50 mg/m2 on days 1, 8, 15, 22 and 29 with concurrent 41.4 Gy radiotherapy given in 23 fractions of 1.8 Gy on 5 days per week) followed by surgery. Patients will undergo a first clinical response evaluation (CRE-1) 4-6 week after completion of nCRT. In patients without histological evidence of residual tumor surgery will be postponed another 6 weeks. A second clinical response evaluation (CRE-2) will be performed 10-12 weeks after completion of nCRT. Immediately after CRE-2 all patients without evidence of distant metastases will undergo esophagectomy. Clinical Response Evaluation Second clinical response evaluation (CRE-2) Patients with operable esophageal squamous cell carcinoma who are planned to undergo neoadjuvant chemoradiotherapy according to the CROSS regimen (intravenous carboplatin AUC 2 mg/mL/min and intravenous paclitaxel 50 mg/m2 on days 1, 8, 15, 22 and 29 with concurrent 41.4 Gy radiotherapy given in 23 fractions of 1.8 Gy on 5 days per week) followed by surgery. Patients will undergo a first clinical response evaluation (CRE-1) 4-6 week after completion of nCRT. In patients without histological evidence of residual tumor surgery will be postponed another 6 weeks. A second clinical response evaluation (CRE-2) will be performed 10-12 weeks after completion of nCRT. Immediately after CRE-2 all patients without evidence of distant metastases will undergo esophagectomy.
- Primary Outcome Measures
Name Time Method Accuracy of clinical response evaluations for detecting substantial residual locoregional disease 10-12 weeks after completion of neoadjuvant chemoradiotherapy The diagnostic performance in terms of sensitivity and specificity of both CRE-1 and CRE-2 for detecting TRG 3-4 residual tumor (more than 10% residual carcinoma) or TRG 1-2 residual tumor (less than 10% residual carcinoma) with residual nodal disease (ypN+) in the surgical resection specimen.
- Secondary Outcome Measures
Name Time Method Accuracy of clinical response evaluations for detecting any residual locoregional disease 10-12 weeks after completion of neoadjuvant chemoradiotherapy The diagnostic performance in terms of sensitivity and specificity of both CRE-1 and CRE-2 for detecting pathologically non-complete response in both the primary tumor and the regional lymph nodes (TRG2-4 or ypN+).
Trial Locations
- Locations (4)
Chang Gung Memorial Hospital
🇨🇳Linkou, Taiwan
Tianjin Medical University Cancer Institute and Hospital
🇨🇳Tianjin, China
Shanghai Chest Hospital
🇨🇳Shanghai, China
Queen Mary Hospital
ðŸ‡ðŸ‡°Hong Kong, Hong Kong