- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02535988
Abscopal Effect for Metastatic Colorectal Cancer
A Phase II Study of Radiotherapy and ZADAXIN's® (Thymalfasin) Induced Abscopal Effect in Patients With Heavily Pretreated, Metastatic Colorectal Cancer
Patients with colorectal cancer that had metastatic lesions after been treated with definitive surgery or chemoradiotherapy are being asked to participate in this study.
- To observe immunity-mediated tumor response outside the radiation field (abscopal effect) after chemoradiotherapy of a metastatic site in metastatic colorectal cancer patients.
- To induce the efficacy (effectiveness) of a new combination of therapy, chemoradiotherapy and thymalfasin for heavily pretreated, metastatic esophageal cancer patients;
- To explore the role of PET/CT scanning to assess tumor response/abscopal effect.
This study will help find out what abscopal effects (good or bad) the combination of radiotherapy and thymalfasin has on metastatic esophageal cancer.
Study Overview
Status
Intervention / Treatment
Detailed Description
- To observe immunity-mediated tumor response outside the radiation field (abscopal effect) after chemoradiotherapy of a metastatic site in metastatic colorectal cancer patients.
- To induce the efficacy (effectiveness) of a new combination of therapy, chemoradiotherapy and thymalfasin for heavily pretreated, metastatic esophageal cancer patients
- To explore the role of PET/CT scanning to assess tumor responses/abscopal effect.
Eligible are patients with metastatic colorectal cancer who have achieved stable disease or have disease progression after systemic therapy (surgery or definitive chemoradiotherapy) and have at least three separate measurable sites of metastatic lesions. Extent of metastatic disease is recorded both at CT and PET/CT scanning. Radiation is given during combined therapy to one of the lesions, 35Gy in 10 fractions over a two week interval, conformally to maximally spare normal tissue or organ. Thymalfasin treatment is given twice a week with an interval of 3-4 days each week. At day 22 radiation is re-started and the same radiation dose is delivered to a second metastatic site, again with thymalfasin. Abscopal response is evaluated by assessing clinical and PET/CT response in the non-irradiated measurable metastatic sites. A Phase II clinical trial based on an optimum two-stage Phase II Simon design is used to conduct this pilot study. Ten patients will be treated in Stage one; if there are no abscopal responses, the trial will be terminated. If there are one or more abscopal responses in Stage One, the trial will proceed to enroll an additional 19 patients.
Study Type
Phase
- Phase 2
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Patients with histologically confirmed colorectal cancer which is persistent and metastatic or recurrent and metastatic;
- Patients must have at least 3 distinct measurable metastatic sites at least 1 cm of larger in their largest diameter;
- Age ≥18 years;
- Metastatic disease measurable on a CT/MRI scan. The primary tumor is not considered measurable disease. Metastatic lesions within a prior radiation field are acceptable as long as disease has progressed in the radiation field by RECIST criteria. The same imaging modality performed at baseline (CT or MRI) will be repeated at subsequent imaging.
- ECOG performance status: 0-1;
- Life expectancy ≥ 3 months.
- Patients have adequate baseline organ and marrow function as defined by an absolute neutrophil count greater than 1500 cells per μL, platelet concentration of greater than 50 000 per μL, total bilirubin less than 1•5 times the upper limit of normal (ULN), aspartate aminotransferase and alanine aminotransferase less than 2•5 times the ULN, and serum creatinine less than 1•5 times the ULN;
- Signed consent forms voluntarily;
Exclusion Criteria:
- Patients who have had prior allergic reaction to Apatinib;
- Patients undergoing therapy with other investigational agents.
- Women who are pregnant or breastfeeding;
- Patients with known brain metastases can be included in this clinical trial but brain lesions are not eligible as target or non target lesion;
- Anticipated patient survival under 3 months;
- Active severe infection or known chronic infection with HIV, hepatitis B virus, or hepatitis C virus;
- Cardiovascular disease problems including unstable angina, therapy for life-threatening ventricular arrhythmia, myocardial infarction, stroke or congestive heart failure within the last 6 months;
- The subject has had another active malignancy within the past five years except for cervical cancer in site, in situ carcinoma of the bladder or non-melanoma carcinoma of the skin;
- Clinically significant and uncontrolled major medical conditions including but not limited to: active uncontrolled infection, symptomatic congestive heart failure, Unstable angina pectoris or cardiac arrhythmia, psychiatric illness/ social situation that would limit compliance with study requirements; any medical condition, which in the opinion of the study investigator places the subject at an unacceptably high risk for toxicities;
- Patients with any other concurrent disease which, in the judgment of the investigator, would make the patient inappropriate for participation in the study.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Non-Randomized
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Radiotherapy and Thymalfasin arm
Patients with metastatic lesions of colorectal cancer receiving single-agent chemotherapy will receive 3.5 Gy/fraction to a total dose of 35 Gy/10 fractions over 2 weeks with concurrent systemic therapy; Systemic agents are either capecitabine (Xeloda), paclitaxel or S-1;
|
3.5Gy per fraction to a total dose of 35Gy/10 fractions over 2 weeks with concurrent thymalfasin for metastatic lesions of colorectal cancer.
Patients with metastatic lesions of colorectal cancer receiving 3.5Gy per fraction to a total dose of 35Gy/10 fractions over 2 weeks with concurrent thymalfasin ( given twice a week with an interval of 3-4 days each week).
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
The proportion of patients with an abscopal response assessed at 7-8 weeks after the initiation of treatment.
Time Frame: week 7- week 8
|
week 7- week 8
|
Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
The number of participants with adverse events from the date of enrollment until 2 years from the opening of the study.
Time Frame: year 0- year 2
|
year 0- year 2
|
The proportion of patients alive with abscopal responses from the date of enrollment until date of death from any cause, assessed up to 2 years from the opening of the study.
Time Frame: year 0- year 2
|
year 0- year 2
|
Collaborators and Investigators
Investigators
- Study Chair: Yongshi Jia, MD, Zhejiang Provincial People's Hospital
Study record dates
Study Major Dates
Study Start
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimated)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Digestive System Diseases
- Neoplasms
- Neoplasms by Site
- Gastrointestinal Neoplasms
- Digestive System Neoplasms
- Gastrointestinal Diseases
- Colonic Diseases
- Intestinal Diseases
- Intestinal Neoplasms
- Rectal Diseases
- Colorectal Neoplasms
- Physiological Effects of Drugs
- Immunologic Factors
- Adjuvants, Immunologic
- Thymalfasin
Other Study ID Numbers
- ZhejiangPPH
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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