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A Phase II Trial Evaluating Radiation Boost to Painful Spinal Metastases

OPTimized Dose Escalation With Simultaneous Integrated Boost for High Risk Spinal Metastases: a Prospective Phase II TriAL (OPTIMAL)

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07478289
Acronym
OPTIMAL
Enrollment
108
Registered
2026-03-17
Start date
2026-04-01
Completion date
2031-12-01
Last updated
2026-03-17

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

Conditions

Spine Metastasis

Keywords

spinal metastases, SBRT, Simultaneous Integrated Boost

Brief summary

Spine SBRT is considered a standard of care for the treatment of spinal metastases. Compared to conventional radiation therapy, spine SBRT delivers high doses of radiation to the affected areas to the spinal metastases. This study is interested in seeing whether an additional 'boost' of radiation, delivered to the affected area in the spine, will result in better long-term control of the tumor; help reduce pain; and reduce long-term side effects of radiation therapy.

Interventions

An additional boost of radiation will be delivered to the spinal metastases. The amount of boost depends on how much radiation would have been normally prescribed (e.g., if treatment required 2 fractions of radiation treatment, an additional 2 Gy would be prescribed; if treatment required 4 fractions of radiation treatment, an additional 4 Gy would be prescribed; if treatment required 5 fractions of radiation treatment, an additional 5 Gy would be prescribed).

Sponsors

Sunnybrook Health Sciences Centre
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Histopathologically confirmed solid tumor malignancy, or strong suspicion based on clinical and radiographic examination of malignancy * Spinal metastases with paraspinal disease extension documented with MRI and recommended for treatment with SBRT * Post-operative SBRT is permitted (after stabilization and/or decompression surgery) as long as no prior radiotherapy had been delivered to the spinal level planned for trial treatment and paraspinal disease is present * ECOG performance status 0-2 * Able to tolerate protocol SBRT * Age 18 years or older * Patient is able and willing to complete the Patient Diary (pain and analgesic use) * Consent must be appropriately obtained in accordance with local requirements. Each patient must sign a consent form prior to enrollment in the trial to document their willingness to participate * Patients must be accessible for treatment and follow-up * Treatment to begin within 14 days (ideally 7 days) of radiotherapy simulation

Exclusion criteria

* Extremely radiosensitive histology (seminoma, small cell lung cancer, hematologic primaries) * Prior radiotherapy in the spine target of interest * Spinal instability as assessed by the Spinal Instability Neoplastic Score with a score of \> 12 * Symptomatic cord compression or cauda equine syndrome resulting from bony compression or epidural compression of the spinal cord and cauda equina, respectively. Symptomatic refers to neurologic deficit in the form of motor, bowel or bladder dysfunction * Pacemaker, such that MRI cannot be performed or treatment cannot be delivered safely * Cytotoxic chemotherapy within 1 week prior to radiotherapy delivery

Design outcomes

Primary

MeasureTime frame
Disease Progression within the Treated Spinal Metastasis, in accordance with SPINO (SPIne assessment in Neuro-Oncology) guidelinesUp to 12 months after completion of radiation therapy

Secondary

MeasureTime frameDescription
Pain at treated spinal metastases, per ICPRE (International Consensus on Palliative Radiotherapy Endpoints)3 and 6 months following completion of radiation therapy
Type of progressionUp to 12 months after completion of radiation therapyWhether the progression occurred at local, marginal, or distant location
Treatment-related side effects as assessed by CTCAE v5.0Up to 12 months following completion of radiation therapy
Spinal Instability, as assessed through the Spinal Instability Neoplastic Scores (SINS)Up to 12 months following completion of radiation therapy

Countries

Canada

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 18, 2026