High Dose Radiotherapy for Palliation (Hi-D)
A Prospective Single-blinded Randomized Study of High Dose Radiotherapy for Palliation: Hi-D
1 other identifier
interventional
20
1 country
1
Brief Summary
The goal of this clinical trial is to evaluate the feasibility of single-blind randomization between two palliative regimens - standard 24 Gray in 3 fractions vs a high-dose (Hi-D) 27 Gray in 3 fractions with dose escalation within the tumor in participants with bulky metastatic cancer. The main question
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started Jan 2026
Longer than P75 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
November 24, 2025
CompletedFirst Posted
Study publicly available on registry
December 18, 2025
CompletedStudy Start
First participant enrolled
January 1, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 1, 2029
ExpectedStudy Completion
Last participant's last visit for all outcomes
August 31, 2029
December 18, 2025
December 1, 2025
3.4 years
November 24, 2025
December 5, 2025
Conditions
Outcome Measures
Primary Outcomes (2)
Feasibility of accrual
≥20 participants enrolled within 24 months from first patient accrued
From open to accrual to close to accrual (24 months)
Feasibility of blinding
Trial Assignment Questionnaire administered post-treatment.
From enrollment to RT completion.
Secondary Outcomes (2)
Compare changes in local control
From enrollment to end of study, accessed at 6 weeks, and month 3,12,18,24
Compare changes in OS
From enrollment to end of study at 24 months or death
Study Arms (2)
High-Dose RT
EXPERIMENTAL27Gy in 3 fractions with boost
Standard Dose Palliative RT
ACTIVE COMPARATOR24Gy in 3 fractions
Interventions
Eligibility Criteria
You may qualify if:
- Subjects must meet all the following criteria to be eligible for participation in this study:
- Age 18 or older.
- Able to provide informed consent
- Patient has histologically confirmed solid tumour malignancy
- ECOG performance status 0 - 2
- Life Expectancy \> 6 months
- target lesions larger than 5cm
- A history and physical exam, including ECOG performance status, performed within 6 weeks prior to trial enrollment
- Not suitable for or declined curative-intent treatment
- Subject has had a CT neck, chest, abdomen and pelvis or PET-CT within 8 weeks prior to enrollment, and with 12 weeks of treatment
- MRI spine for patients receiving RT to vertebral or paraspinal metastases
- Patient is judged able to:
- Maintain a stable position during therapy
- Tolerate immobilization device(s) that may be required to deliver radiation safely
You may not qualify if:
- \- Hematologic malignancy.
- Disease limited to intracranial sites
- Serious medical co-morbidities precluding radiotherapy
- Bone metastases with no soft tissue component
- Prior radiation to target lesion that precludes delivery of repeat radiation. All such cases should be discussed with the local and study PIs.
- Pregnant women
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
BC Cancer - Vancouver
Vancouver, British Columbia, Canada
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Wei Liu, MD, FRCPC
BC Cancer - Vancouver
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- PARTICIPANT
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
November 24, 2025
First Posted
December 18, 2025
Study Start
January 1, 2026
Primary Completion (Estimated)
June 1, 2029
Study Completion (Estimated)
August 31, 2029
Last Updated
December 18, 2025
Record last verified: 2025-12