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COLLISION RELAPSE trial Recurrent colorectal liver metastases: repeat local treatment +/- neoadjuvant systemic therapy, a phase III prospective randomized controlled trial

Status
Not yet recruiting
Phases
Phase 3Phase 4
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2024-515341-41-01
Enrollment
360
Registered
2024-12-11
Start date
Unknown
Completion date
Unknown
Last updated
2024-12-11

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

Conditions

Colorectal liver metastases

Brief summary

Primary objective is to compare overall survival (OS) in both study arms, counting from the date of randomization to the date of death of the patient or to the last day of follow-up (censored)

Detailed description

Distant progression free survival (DPFS; per patient analysis): Overall DPFS is defined as the time from randomization to the time of disease progression (according to the RECIST 1.1 guideline (205)) or cancer related death (events), death related to other causes is considered a competing risk, Local tumor progression free survival (LTPFS; per tumor and per patient analysis): Overall LTPFS is defined as the time from randomization to the time of local disease progression, new metastases (events), censoring the date of death from any cause (competing risk), completion ablations performed within 6 weeks for residual tumor are not considered events for the local tumor progression analysis, Rate of adverse events and serious adverse events (AE and SAE; per procedure analysis), associated with both treatment arms; o Systemic therapy related toxicity is graded from 1 to 5 according to the CTCAE version 5.0, discussed in paragraph 9.4; o Procedural morbidity and mortality are graded from I to V according to the standard classification of surgical complications (206), discussed in paragraph 9.4, Length of hospital stay, Pain assessment using visual analogue scale questionnaires (VAS; per procedure analysis: Assessed prior to, directly after and every three months after local treatment, To determine quality of life in both treatment arms. Quality of life assessment using EORCT QLQ-C30, EQ-5D, and PRODISQ questionnaires (per procedure analysis): Assessed prior to, and Version 3 May 12th 2023 31 of 140 every three months after local treatment, assessed prior to, during and after neoadjuvant systemic therapy, Direct and indirect total costs of care per treatment arm, quality-adjusted life years (QALY) and incremental cost-effectiveness ratio (ICER) per treatment arm (per patient analysis)

Interventions

Sponsors

Stichting Amsterdam UMC
Lead SponsorOTHER

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
Primary objective is to compare overall survival (OS) in both study arms, counting from the date of randomization to the date of death of the patient or to the last day of follow-up (censored)

Secondary

MeasureTime frame
Distant progression free survival (DPFS; per patient analysis): Overall DPFS is defined as the time from randomization to the time of disease progression (according to the RECIST 1.1 guideline (205)) or cancer related death (events), death related to other causes is considered a competing risk, Local tumor progression free survival (LTPFS; per tumor and per patient analysis): Overall LTPFS is defined as the time from randomization to the time of local disease progression, new metastases (events), censoring the date of death from any cause (competing risk), completion ablations performed within 6 weeks for residual tumor are not considered events for the local tumor progression analysis, Rate of adverse events and serious adverse events (AE and SAE; per procedure analysis), associated with both treatment arms; o Systemic therapy related toxicity is graded from 1 to 5 according to the CTCAE version 5.0, discussed in paragraph 9.4; o Procedural morbidity and mortality are graded

Countries

Netherlands

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026