Clinical trial · Interventional
Single vs Multiple-Fraction Therapy in Treating Patients With Previously Irradiated Painful Bone Metastases
A Phase III International Randomized Trial Of Single Versus Multiple Fractions For Re-Irradiation Of Painful Bone Metastases
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
RATIONALE: Radiation therapy uses high-energy x-rays to damage tumor cells. It is not yet known whether single-fraction (single-dose) re-irradiation therapy is as effective as multiple-fraction (many small doses of radiation therapy) re-irradiation therapy in relieving bone pain caused by bone metastases. PURPOSE: This randomized phase III trial is studying single-dose radiation therapy to see if it works as well as multiple-dose radiation therapy in treating patients previously irradiated with painful bone metastases.
Conditions
Conditions (2)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Metastatic Cancer | Malignant Neoplasm | CURATED_BROADER | 0.78 |
| Pain | — | UNRESOLVED | — |
Interventions
Interventions (1)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| radiation therapy | Radiation | — | UNRESOLVED |
Design
Arms and outcomes
Arms (2)
- type
- EXPERIMENTAL
- label
- Arm I
- description
- Patients receive single-fraction radiotherapy (8 Gy) on day 1.
- interventionNames
- Radiation: radiation therapy
- type
- ACTIVE_COMPARATOR
- label
- Arm II
- description
- Patients receive multiple-fraction radiotherapy (to a total of 20 Gy) over 5 days or over 8 days if re-irradiation of the spine and/or whole pelvis is involved AND prior initial radiotherapy was given in multiple fractions.
- interventionNames
- Radiation: radiation therapy
Primary outcomes (1)
- measure
- Pain Relief Measured by the Brief Pain Inventory at 2 Months After Treatment
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 18 Years
Show eligibility criteria text
DISEASE CHARACTERISTICS: * Histologically or cytologically confirmed malignancy * Diagnosis by needle biopsy, bone marrow biopsy, cytology, or surgical biopsy or resection * Bone metastases at clinically painful areas confirmed by any of the following: * Plain radiographs * Radionuclide bone scans * CT scans * Magnetic resonance imaging * Worst pain score of ≥ 2/10 using the baseline Brief Pain Inventory * Pain arising from previously irradiated metastases and not from progressive disease in adjoining or remote areas * Initial radiotherapy field is reproducible for re-irradiation * Current treatment field for palliative radiotherapy must be the same size or smaller than the initial treatment field * No clinical or radiological evidence of pathological fractures in the target site extremities. * No radiological evidence of high-risk lesions for pathological fractures in the extremities (lytic lesions \> 3cm or \> 50% cortical erosion of bone diameter) if target site AND patient is a candidate for surgical intervention. * No clinical or radiological evidence of spinal cord compression at target site. PATIENT CHARACTERISTICS: Age * 18 and over Performance status * Karnofsky 50-100% Life expectancy * Not specified Hematopoietic * Not specified Hepatic * Not specified Renal * Not specified Other * Not pregnant or nursing * Fertile patients must use effective barrier contraception * Able and willing to complete quality of life questionnaire in English, French, Dutch, or Spanish (if randomized by Canadian, Dutch, French or RTOG centre) * Must be accessible for treatment follow-up * Informed consent PRIOR CONCURRENT THERAPY: Biologic therapy * Not specified Chemotherapy * Not specified Endocrine therapy * Not specified Radiotherapy * See Disease Characteristics * No more than 1 prior course of radiotherapy to the target site * No prior radiotherapy dose ≥ 24 Gy in 6 fractions, 27 Gy in 8 fractions, or 30 Gy in 10 fractions to the spine or any part of the pelvis encompassing small or large bowel and/or the rectum, if these sites are being treated on study * Initial doses of 24 Gy in 6 fractions, 27 Gy in 8 fractions or 30 Gy in 10 fractions to the acetabulum or hip and proximal femur allowed as long as the medial field border of the initial treatment did not cross midline * No prior radiotherapy dose \> 30Gy in 10 fractions to the ribs or extremities if these sites are being treated on study * More than 30 days since prior strontium chloride Sr 89 * More than 30 days since prior half-body radiotherapy, including the current re-irradiation field * At least 4 weeks since initial radiotherapy Surgery * No prior palliative surgery in treatment area * No concurrent surgical intervention on treatment area Other * No prior participation on this protocol * No plan to make an immediate change in analgesic regimen
References
Publications (4)
- BACKGROUNDChow E, Hoskin PJ, Wu J, Roos D, van der Linden Y, Hartsell W, Vieth R, Wilson C, Pater J. A phase III international randomised trial comparing single with multiple fractions for re-irradiation of painful bone metastases: National Cancer Institute of Canada Clinical Trials Group (NCIC CTG) SC 20. Clin Oncol (R Coll Radiol). 2006 Mar;18(2):125-8. doi: 10.1016/j.clon.2005.11.014. No abstract available. PMID 16523812
- RESULTChow E, van der Linden YM, Roos D, Hartsell WF, Hoskin P, Wu JS, Brundage MD, Nabid A, Tissing-Tan CJ, Oei B, Babington S, Demas WF, Wilson CF, Meyer RM, Chen BE, Wong RK. Single versus multiple fractions of repeat radiation for painful bone metastases: a randomised, controlled, non-inferiority trial. Lancet Oncol. 2014 Feb;15(2):164-71. doi: 10.1016/S1470-2045(13)70556-4. Epub 2013 Dec 23. PMID 24369114
- DERIVEDChow R, Ding K, Ganesh V, Meyer RM, van der Linden YM, Roos D, Hartsell WF, Hoskin P, Wu JSY, Nabid A, van Acht M, Wanders R, Babington S, Demas WF, Wilson CF, Wong RKS, Brundage M, Zhu L, Chow E. Gender and age make no difference in the re-irradiation of painful bone metastases: A secondary analysis of the NCIC CTG SC.20 randomized trial. Radiother Oncol. 2018 Mar;126(3):541-546. doi: 10.1016/j.radonc.2017.10.006. Epub 2017 Nov 5. PMID 29102263
- DERIVEDChow E, Meyer RM, Chen BE, van der Linden YM, Roos D, Hartsell WF, Hoskin P, Wu JS, Nabid A, Tissing-Tan CJ, Oei B, Babington S, Demas WF, Wilson CF, Wong RK, Brundage M. Impact of reirradiation of painful osseous metastases on quality of life and function: a secondary analysis of the NCIC CTG SC.20 randomized trial. J Clin Oncol. 2014 Dec 1;32(34):3867-73. doi: 10.1200/JCO.2014.57.6264. Epub 2014 Oct 27. PMID 25349296