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RecruitingLast updated: 2 February 2026

HYBRID: Testing new ways to deliver radiation therapy for people with cancer that has spread to their bones to improve pain relief and tumour controlThe feasibility and safety of conventional EBRT and integrated stereotactic-lite GTV boost in bone metastases in participants with solid tumour

Trial purpose

Medical clipboardCancer treatment

Tumor type

Multi-Cancer Multi-Cancer

Age

People18+

Trial acronym

HYBRID

Clinical summary

Summary

This study aims to test a new way to deliver radiation therapy to people with cancer that has spread to their bones to enhance local control of metastatic lesions while maintaining acceptable toxicity profiles.

Who is it for?
You may be eligible to join this study if you are aged 18 years and older, are with Pathological diagnosis of a solid tumour, no planned change to main medication on the first day of protocol radiation therapy. You must have an imaging confirmed bone metastases and an estimated life expectancy greater than 3 months. Germ cell tumours and small-cell cancers are excluded.

Study details
All participants who meet the eligibility criteria in this study will be given treatment either:

  • once a day for 5 days over 1 week, or
  • once a day for 10 days over 2 weeks (Monday to Friday, with weekends off unless needed).

The treatment includes a standard radiation dose to the affected bone area, along with a more focused, higher-density boost to the main tumour area using advanced imaging. This boost is designed to better target the cancer while protecting healthy tissue.

During and after completion of the treatment, participants will be assessed for pain response and patient outcomes using questionnaires, fractures using imaging, and need for re-irradiation and salvage surgery to treatment sites through clinical follow-up and medical review.

It is hoped that this research project will help determine if this combined approach is safe, effective, and practical to deliver in routine care to improve pain relief and tumour control while keeping side effects low.

Conditions

This trial is treating people with pathalogical diagnosis of a solid tumour that has spread to the bones and is suffering from pain

Eligibility

Inclusion

1. Aged 18 years or older (21 years or older in Singapore).
2. Pathological diagnosis of a solid tumour (excluding germ cell tumours and small-cell cancers).
3. No planned change to pain medication on the first day of protocol radiotherapy.
4. Imaging-confirmed bone metastases on standard imaging (X-ray, WBBS, CT, MRI, or PET).
5. Pain score greater than or equal to 2 on the modified Brief Pain Inventory.
6. Estimated life expectancy greater than 3 months.
7. ECOG performance status of 0 to 2.
8. Ability to complete pain and quality of life assessments.
9. If treating the axial spine: at least 3 contiguous vertebral body segments involved.
10. Gross tumour volume (GTV) boost size must be greater than 1 cm.
11. A maximum of 3 GTV boost sites permitted.

Exclusion

 

1. Prior radiotherapy or surgery to the intended treatment site.
2. Symptomatic spinal cord compression or cauda equina syndrome.
3. Spinal Instability Neoplastic Score (SINS) greater than 12.
4. Vertebral compression fracture with greater than 50% height loss or bony retropulsion (if spine is treated).
5. Mirels’ score greater than 9 for long bone metastases (if non-spinal bone is treated).
6. Systemic chemotherapy within 1 week before or after protocol radiotherapy.
7. Inability to provide informed consent.
8. Pregnant or breastfeeding.

Inclusion

  • Your cancer has spread to other parts of the body (metastatic) or has grown into nearby parts of the body (locally advanced).

Exclusion

  • You have had certain treatments, surgical procedures or drugs.
Message

Clinical trials have complex eligibility criteria, and other criteria may apply for this trial. Ask your doctor about whether this trial could be right for you.

Participating hospitals

Recruiting hospitals

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More information

Trial Identifiers

Information on this page is partially produced from ANZCTR *. View further details about this trial on the registry via the links below:

Trial sponsor

GenesisCare

Scientific Title

The feasibility and safety of conventional EBRT and integrated stereotactic-lite GTV boost in bone metastases in participants with solid tumour

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