Systemic Neoadjuvant and Adjuvant Control by Precision Medicine in Rectal Cancer (SYNCOPE)
Systemic Neoadjuvant and Adjuvant Control by Precision Medicine in Rectal Cancer (SYNCOPE) - Approach on High-risk Group to Reduce Metastases
Rectal cancer represents the most complex area of multidisciplinary treatment in bowel surgery. In 2017, there were 1221 new rectal cancers in Finland. The prognosis of colorectal cancer (CRC) patients these days is almost exclusively driven by the occurrence of the metastatic form of the disease.
The treatment of rectal cancer often includes a long delay between diagnosis and the initiation of systemic chemotherapy, increasing risk for systemic metastases for those at high risk. On the other hand, the waiting time during pretreatment before surgery enables comprehensive systematic characterization of the primary tumor status before the decisions on adjuvant chemotherapy, opening a window to the use of precision in decision-making.
In this randomized controlled treatment trial, outcomes of novel precision methods to select right rectal cancer patients for treatment that they need will be compared to conventional treatment. The study aims to reduce over-treatment of those that most likely do not benefit from additional treatments. With the overall aim to reduce metastatic form of the disease, patients with high-risk features will be randomized to a treatment strategy with early systemic control by chemotherapy followed by circulating tumor DNA (ctDNA) and organoid-guided adjuvant therapy, or to conventional treatment strategy. Both state-of-the-art laboratory practice and routine diagnostic clinical pipelines are introduced to bring future diagnostic models of minimal residual disease and chemoresistance closer to current practice. The outcomes will reveal the clinical benefit of such strategy by recurrence-free survival at highest level of evidence, and produce important clinical outcome data on the application of ctDNA in everyday cancer treatment practice. The translational data on the use of ctDNA organoids to inform treatment decision and regimen selection will build knowledge of the use of such biomarkers as tools for clinical practice and clinical research. The results will be scalable worldwide in the practice of rectal cancer treatment.
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Study Type
Study Type
Enrollment (Anticipated)
Enrollment
Phase
Phase
- Not Applicable
Contacts and Locations
Study Contact
Study Contact
- Name: Toni T Seppälä, MD, PhD
- Phone Number: +358444722846
- Email: toni.seppala@tuni.fi
Study Locations
-
-
-
Tampere, Finland, 33520
- Recruiting
- Tampere University Hospital
-
Contact:
- Toni Seppala, Prof
- Phone Number: +358444722846
- Email: toni.seppala@pirha.fi
-
-
Uusimaa
-
Helsinki, Uusimaa, Finland, 00029
- Recruiting
- Helsinki University Central Hospital
-
Contact:
- Toni T Seppala, MD, PhD
- Phone Number: +358444722846
- Email: toni.t.seppala@hus.fi
-
-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- rectal adenocarcinoma,
- World Health Organization (WHO) performance status 0-1, assessed by the MDT to be able to undergo capecitabine and oxaliplatin (CAPOX) treatment, 3) extramural vein invasion by magnetic resonance imaging (mrEMVI+) and
4) assessed by the multi-disciplinary team (MDT) to require either radiotherapy (RT) or long chemoradiotherapy (CRT) by the current standards.
Exclusion Criteria:
- deficient mismatch repair (MMR) status,
- non-dihydropyrimidine dehydrogenase (DPYD) genotype,
- a contraindication to capecitabine, oxaliplatin or RT, or
- failing in blood tests that describe the adequate circulatory, liver and kidney function for chemotherapy.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Experimental: TNT + precision
|
Short radiotherapy (5X5 Gy) and capecitabine/oxaliplatin
Postoperative MRD on circulating cell-free DNA
|
|
Active Comparator: Conventional
|
Long-course 50.4 Gy radiation with capecitabine
|
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Recurrence-free survival
Time Frame: 3 years from surgery
|
3 years from surgery
|
|
|
Recurrence-free survival
Time Frame: 5 years from surgery
|
5 years from surgery
|
|
|
Postoperative ctDNA
Time Frame: 3 weeks postoperatively
|
number of patients with detectable ctDNA at postoperative sample in the conventional treatment arm that are not assigned to chemotherapy
|
3 weeks postoperatively
|
Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
overall survival
Time Frame: 5 years
|
5 years
|
|
|
overall survival
Time Frame: 3 years
|
3 years
|
|
|
CRC-specific survival
Time Frame: 3 years
|
3 years
|
|
|
CRC-specific survival
Time Frame: 5 years
|
5 years
|
|
|
number of surgically resected patients resected patients
Time Frame: 1 year
|
1 year
|
|
|
R0-resection rate
Time Frame: 1 year
|
1 year
|
|
|
local recurrence rate
Time Frame: 5 years postoperatively
|
5 years postoperatively
|
|
|
complete pathological response response rate
Time Frame: 12 weeks after initiation of pretreatment
|
12 weeks after initiation of pretreatment
|
|
|
complete clinical response rate
Time Frame: 12 weeks after initiation of pretreatment
|
12 weeks after initiation of pretreatment
|
|
|
total uptake of chemotherapy
Time Frame: 1year
|
1year
|
|
|
total uptake of chemotherapy
Time Frame: 3 years
|
3 years
|
|
|
total uptake of chemotherapy
Time Frame: 5 years
|
5 years
|
|
|
adverse effects of surgery effects of surgery
Time Frame: 1 year
|
1 year
|
|
|
adverse effects of chemotherapy
Time Frame: 1 year
|
1 year
|
|
|
adverse effects of chemotherapy
Time Frame: 3 years
|
3 years
|
|
|
Treatment response by patient-derived organoid (PDO) therapy response
Time Frame: 1 year
|
population distribution of PDO treatment response is compared to their corresponding clinical response by response MRI and pathological response and compared to organoid in vitro response
|
1 year
|
Collaborators and Investigators
Sponsor
Sponsor
Investigators
Investigators
- Principal Investigator: Toni T Seppälä, MD, PhD, Tampere University Hospital
Study record dates
Study Major Dates
Study Start (Actual)
Study Start
Primary Completion (Anticipated)
Primary Completion
Study Completion (Anticipated)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Actual)
First Posted
Study Record Updates
Last Update Posted (Estimate)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- HUS/155/2021
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
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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