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Oligometastatic DiseaseONESNCT05679427

Ablative Radiosurgery vs Stereotactic RT in 5 Fractions With SIB for Oligometastatic Bone Lesions

A study testing radiosurgery and stereotactic ablative radiotherapy with simultaneous integrated boost, respectively in people with Oligometastatic Disease, run by IRCCS San Raffaele at 1 site in Italy.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

This is a randomised prospective monoinstitutional study comparing radiosurgery at a total dose up to 24 Gy to five fraction stereotactic radiotherapy with simultaneous integrated boost (SIB) up to 50 Gy for the treatment of bone metastases in oligometastatic cancer treated with radical intent. Read more about this study

Who is it for?
Ages 18 to 85 years
Conditions the study is for
Oligometastatic Disease
What is being tested?
radiosurgery and stereotactic ablative radiotherapy with simultaneous integrated boost, respectively
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
307 participants
Where
1 siteItaly
Study dates
7 Nov 2022to 7 Dec 2027
Phase
Interventional
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 85 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Performance status ECOG ≤2
  • Life expectancy > 6 months according to Mizumoto criteria*
  • Oligometastatic disease (Total number of metastases from 1 to 5: both synchronous and metachronous with maximum involvement of three organs in total - lymph nodes, bones, lungs, liver, adrenal gland, brain- with known histology
  • At least one bone metastasis treatable with SABR or SRS
  • Each secondary localization (synchronous, metachronous or oligoprogressive) must be treated with radical intent.
  • Patients may have received other anticancer treatments (surgery for initial site of disease or other metastases, chemotherapy, radiotherapy for other metastatic sites)

Who cannot join

  • Sites of disease not eligible for stereotactic radiotherapy
  • Serious medical comorbidities that preclude RT
  • Overlap with a previously treated volume of radiotherapy
  • Dimension greater than 5 cm for extra-cranial lesions.
  • Size greater than 3 cm for brain lesions
  • More than 1 brain metastases
Show all 10Show fewer
  • Clinical or radiological evidence of spinal cord compression or epidural tumor within 2mm of the spinal cord
  • Radiological evidence of vertebral body fracture or involvement of more than 40% of the vertebral body
  • Radiological evidence of cortical involvement in long bones
  • Pregnant or breastfeeding women

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Nadia G Di Muzio, Prof. contact

+390226437643

dimuzio.nadia@hsr.it

Andrei Fodor, MD contact

+390226437634

fodor.andrei@hsr.it

Italy1 site, 1 recruiting
  • San Raffaele Scientific Institute

    Milan, MI, 20132

    Nadia G Di Muzio, Prof, +390226437643, dimuzio.nadia@hsr.it

    Fodor Andrei, M.D., +390226437634, fodor.andrei@hsr.it

    Recruiting

Other trials in Italy

About this study

Official title: A Randomised, Prospective, Monoinstitutional Study of Ablative Radiosurgery vs Stereotactic Radiotherapy in 5 Fractions, With Simultaneous Integrated Boost, for the Treatment of Bone Lesions in Oligometastatic Disease

This is a randomised prospective monoinstitutional study comparing radiosurgery at a total dose up to 24 Gy to five fraction stereotactic radiotherapy with simultaneous integrated boost (SIB) up to 50 Gy for the treatment of bone metastases in oligometastatic cancer treated with radical intent. At the end of the first 12 months from the start of the study an interim analysis will be performed taking into account all major endpoints for an initial evaluation of the study , with only an observational purpose, without subsequent protocol changes.

Read the detailed description

The study is interventional, homogeneous (performed in a single institution). Patient recruitment Patients who meet the inclusion criteria will be enrolled during the initial Radiation Oncology examination in our institution or during the multidisciplinary meeting.

Recruitment and selection The patients will be informed of the possibility to participate in the study. I pazienti verranno informati ella possibilità di accedere allo studio. After a careful verification of the inclusion and exclusion criteria, and precise description of the benefits, risks and procedure of the current study, the patient will be asked to sign the informed consent and subsequently randomised.

The following information will be collected for each patient, as is standard practice in our department: demographic data, clinical history, concomitant medical treatments, physical exam, blood exam, tumoral markers, diagnoses CT / Bone scintigraphy/ MRI/ PET and any other staging exam or post tumoral treatment re-evaluation performed.

Randomisation A centralized randomization, with closed envelopes, will be performed by a secretary not involved in the study.

Pre-treatment phase Each patient will undergo the simulation CT, in line with routine clinical practice, with immobilisation devices within 15 (+/- 5) days from the randomisation. The simulation CT will be performed in the Radiotherapy department, the MRI in the Radiology department.

Treatment phase The protocol treatment uses two radiotherapy regimens with ablative doses, which are already included in the daily clinical practice at San Raffaele Scientific Institute and many other national centers equipped with High Technology. The treatment machine will be randomly assigned, depending on the availability of slots for the timing required by the protocol.

The patients will be randomized at a 1:1 ratio between:

  • Arm A: radiosurgery ( in one fraction) to the bone metastases ( 21-24 Gy in 1 fraction)
  • Arm B: Multifractionated ablative stereotactic radiotherapy (5 fractions, one fraction per day, 5 consecutive weekdays) with SIB to the bone metastases (up to 40-50 Gy).

The treatment should be completed within 1 month from the CT simulation and within 45 (+/- 5) days from randomization (first visit).

Post-treatment phase:

Patients will be evaluated according to departmental clinical practice: at the first visit, at the end of the treatment and at follow-up visits at 3, 6, 12, 18, 24, 36 months from the end of radiotherapy with CT and/or Bone Scan and/or MRI and/or PET/CT based on the treated sites, on the histology of primary tumor, and by means of laboratory exams. Subsequent radiological images of laboratory analyses will be performed at the discretion of the radiation oncologist, based on symptoms or clinical findings. At every visit the anamnesis, physical examination, the CTCAE(Common Terminology Criteria for Adverse Events) toxicity evaluation will be performed and registered, together with any skeletal events, re-irradiation, other systemic therapy lines, or palliative treatment. The patient will fill in the Pain Diary and the quality of life questionnaires (EORTC QLQ-C30, QLQBM22, and EQ-5D-3L). The follow-up visits will be performed in the dedicated rooms of the Radiation Oncology department.

Being tested
radiosurgery and stereotactic ablative radiotherapy with simultaneous integrated boost, respectively
Keywords
SBRT, Simultaneous Integrated Boost, Oligometastatic Disease, Bone Metastases

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • radiosurgery and stereotactic ablative radiotherapy with simultaneous integrated boost, respectivelyRadiation

    Two protocols of stereotactic ablative radiotherapy, in one vs five fractions ( the later with SIB) are compared

Study groups in NCT05679427
Study groupRoleWhat they receive
Arm AActive comparatorSingle fraction radiosurgery on bone metastases (21-24Gy x 1 fraction)
Receives: Radiation: radiosurgery and stereotactic ablative radiotherapy with simultaneous integrated boost, respectively
Arm BActive comparatorMulti-fractioned stereotactic ablative radiotherapy (5 fractions delivered in 5 consecutive working days) with SIB on bone metastases (5Gy x 5 fractions + SIB up to 40-50Gy)
Receives: Radiation: radiosurgery and stereotactic ablative radiotherapy with simultaneous integrated boost, respectively

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Local recurrence-free surival

    evaluation of the impact of stereotactic radiotherapy (one fraction versus fractionated) on local control of disease in terms of local recurrence free survival (LRFS) in patients with oligometastastic disease and at least one bone metastasis.

    Measured: 3 years from the end of treatment

Secondary outcomes (9)
  1. Acute and late local toxicity

    Impact of the two treatments on the local radioinduced toxicity in terms of incidence in skeletal events and acute and late toxicity measured with the Common Terminology Criteria for Adverse Events v5.0 scale

    Measured: Changes form baseline at 3 years from the end of treatment

  2. Pain control

    Pain control of symptomatic bone lesions measured through the variation of pain diary

    Measured: Changes form baseline at 3 years from the end of treatment

  3. Overall survival

    Overall-surival

    Measured: 3 years from the end of treatment

  4. Cancer Specific Survival

    Cancer Specific Survival

    Measured: 3 years from the end of treatment

  5. Progression to polymetastatic disease

    Impact of the two treatments on the rate of progression to polymethastatic disease

    Measured: 3 years from the end of treatment

  6. Adjusted disease-free survival

    defined as the time between the end of radiotherapy and the date of disease progression (local or distant) or the start of therapy (systemic or palliative)

    Measured: 3 years from the end of treatment

  7. Incidence of Treatment-Emergent Adverse Events as assessed by EORTC-QLQ-C30

    Quality-of-life assessed by EORTC-QLQ-C30 questionnaire

    Measured: Changes from baseline at 3 years after the treatment

  8. Incidence of Treatment-Emergent Adverse Events as assessed by EORTC-QLQ-BM22

    Quality-of-life assessed by EORTC-QLQ-BM22 questionnaire

    Measured: Changes from baseline at 3 years after the treatment

  9. Satisfaction assessed by EQ-5D-3L

    Quality-of-life assessed by EQ-5D-3L questionnaire

    Measured: Changes from baseline at 3 years after the treatment

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted11 Jan 2023
  2. Study start7 Nov 2022
  3. Primary completion7 Nov 2027 (estimated)
  4. Study completion7 Dec 2027 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
The sample size calculation is based on the Kaplan-Meier estimator and uses a log-rank test (Freedman, 1982; Machin et al., 2018). Assuming for the two groups a two-year LRFS of 95% and 85%, respectively, with alpha=0.05 and power of 80%, the total number needed to identify a significant difference between the two curves is 292 (test at 2 queues, 146 patients per group). Calculations were performed with software (PASS 2021, v21.0.3). Assuming a 5% dropout, we expect to enroll 15 more patients in total, thus reaching a final number of 307.
Masking
None (open label)
Enrolment
307 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05679427
Sponsor's protocol ID
ONES Trial
Acronym
ONES
Status last verified
Oct 2026
First submitted
1 Dec 2022
Last updated
27 Oct 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: The data that support the findings of this study (anonymized individual participant data) are available on request from the corresponding author to researchers who provide a methodologically sound proposal. Requests made to the corresponding author will be evaluated by the IRCCS San Raffaele Scientific Institute Ethics Committee.

Publications

  • Hellman S, Weichselbaum RR. Oligometastases. J Clin Oncol. 1995 Jan;13(1):8-10. doi: 10.1200/JCO.1995.13.1.8. No abstract available.

    PubMed 7799047
  • Pastorino U, Buyse M, Friedel G, Ginsberg RJ, Girard P, Goldstraw P, Johnston M, McCormack P, Pass H, Putnam JB Jr; International Registry of Lung Metastases. Long-term results of lung metastasectomy: prognostic analyses based on 5206 cases. J Thorac Cardiovasc Surg. 1997 Jan;113(1):37-49. doi: 10.1016/s0022-5223(97)70397-0.

    PubMed 9011700
  • Lievens Y, Guckenberger M, Gomez D, Hoyer M, Iyengar P, Kindts I, Mendez Romero A, Nevens D, Palma D, Park C, Ricardi U, Scorsetti M, Yu J, Woodward WA. Defining oligometastatic disease from a radiation oncology perspective: An ESTRO-ASTRO consensus document. Radiother Oncol. 2020 Jul;148:157-166. doi: 10.1016/j.radonc.2020.04.003. Epub 2020 Apr 22.

    PubMed 32388150
  • Lehrer EJ, Singh R, Wang M, Chinchilli VM, Trifiletti DM, Ost P, Siva S, Meng MB, Tchelebi L, Zaorsky NG. Safety and Survival Rates Associated With Ablative Stereotactic Radiotherapy for Patients With Oligometastatic Cancer: A Systematic Review and Meta-analysis. JAMA Oncol. 2021 Jan 1;7(1):92-106. doi: 10.1001/jamaoncol.2020.6146.

    PubMed 33237270
  • Zelefsky MJ, Yamada Y, Greco C, Lis E, Schoder H, Lobaugh S, Zhang Z, Braunstein S, Bilsky MH, Powell SN, Kolesnick R, Fuks Z. Phase 3 Multi-Center, Prospective, Randomized Trial Comparing Single-Dose 24 Gy Radiation Therapy to a 3-Fraction SBRT Regimen in the Treatment of Oligometastatic Cancer. Int J Radiat Oncol Biol Phys. 2021 Jul 1;110(3):672-679. doi: 10.1016/j.ijrobp.2021.01.004. Epub 2021 Jan 8.

    PubMed 33422612
  • Ryu S, Jin R, Jin JY, Chen Q, Rock J, Anderson J, Movsas B. Pain control by image-guided radiosurgery for solitary spinal metastasis. J Pain Symptom Manage. 2008 Mar;35(3):292-8. doi: 10.1016/j.jpainsymman.2007.04.020. Epub 2008 Jan 22.

    PubMed 18215498
  • Ryu S, Jin JY, Jin R, Rock J, Ajlouni M, Movsas B, Rosenblum M, Kim JH. Partial volume tolerance of the spinal cord and complications of single-dose radiosurgery. Cancer. 2007 Feb 1;109(3):628-36. doi: 10.1002/cncr.22442.

    PubMed 17167762
  • Zeng KL, Tseng CL, Soliman H, Weiss Y, Sahgal A, Myrehaug S. Stereotactic Body Radiotherapy (SBRT) for Oligometastatic Spine Metastases: An Overview. Front Oncol. 2019 May 1;9:337. doi: 10.3389/fonc.2019.00337. eCollection 2019.

    PubMed 31119099
  • Rusthoven KE, Kavanagh BD, Burri SH, Chen C, Cardenes H, Chidel MA, Pugh TJ, Kane M, Gaspar LE, Schefter TE. Multi-institutional phase I/II trial of stereotactic body radiation therapy for lung metastases. J Clin Oncol. 2009 Apr 1;27(10):1579-84. doi: 10.1200/JCO.2008.19.6386. Epub 2009 Mar 2.

    PubMed 19255320
  • Guckenberger M, Lievens Y, Bouma AB, Collette L, Dekker A, deSouza NM, Dingemans AC, Fournier B, Hurkmans C, Lecouvet FE, Meattini I, Mendez Romero A, Ricardi U, Russell NS, Schanne DH, Scorsetti M, Tombal B, Verellen D, Verfaillie C, Ost P. Characterisation and classification of oligometastatic disease: a European Society for Radiotherapy and Oncology and European Organisation for Research and Treatment of Cancer consensus recommendation. Lancet Oncol. 2020 Jan;21(1):e18-e28. doi: 10.1016/S1470-2045(19)30718-1.

    PubMed 31908301
  • Loi M, Alifano M, Scorsetti M, Nuyttens JJ, Livi L. Judging a Fish by Its Ability to Climb a Tree? A Call for Novel Endpoints in the Appraisal of Ablative Local Treatments of Oligometastatic Cancer. Oncologist. 2021 Jun;26(6):e1085-e1086. doi: 10.1002/onco.13747. Epub 2021 Apr 9.

    PubMed 33686724
  • Poon I, Erler D, Dagan R, Redmond KJ, Foote M, Badellino S, Biswas T, Louie AV, Lee Y, Atenafu EG, Ricardi U, Sahgal A. Evaluation of Definitive Stereotactic Body Radiotherapy and Outcomes in Adults With Extracranial Oligometastasis. JAMA Netw Open. 2020 Nov 2;3(11):e2026312. doi: 10.1001/jamanetworkopen.2020.26312.

    PubMed 33196810
  • Buglione M, Jereczek-Fossa BA, Bonu ML, Franceschini D, Fodor A, Zanetti IB, Gerardi MA, Borghetti P, Tomasini D, Di Muzio NG, Oneta O, Scorsetti M, Franzese C, Romanelli P, Catalano G, Dell'Oca I, Beltramo G, Ivaldi GB, Laudati A, Magrini SM, Antognoni P; Italian Society of Radiotherapy and Clinical Oncology - Regional Group Lombardy (AIROL). Radiosurgery and fractionated stereotactic radiotherapy in oligometastatic/oligoprogressive non-small cell lung cancer patients: Results of a multi-institutional series of 198 patients treated with "curative" intent. Lung Cancer. 2020 Mar;141:1-8. doi: 10.1016/j.lungcan.2019.12.019. Epub 2020 Jan 3.

    PubMed 31926440
  • Sindhu KK, Leiter A, Moshier E, Lin JY, Carroll E, Brooks D, Shimol JB, Eisenberg E, Gallagher EJ, Stock RG, Galsky MD, Buckstein M. Durable disease control with local treatment for oligoprogression of metastatic solid tumors treated with immune checkpoint blockade. Cancer Treat Res Commun. 2020;25:100216. doi: 10.1016/j.ctarc.2020.100216. Epub 2020 Oct 8.

    PubMed 33049542
  • Gaertner J, Elsner F, Pollmann-Dahmen K, Radbruch L, Sabatowski R. Electronic pain diary: a randomized crossover study. J Pain Symptom Manage. 2004 Sep;28(3):259-67. doi: 10.1016/j.jpainsymman.2003.12.017.

    PubMed 15336338

Questions about this trial

What is this clinical trial studying?

A study testing radiosurgery and stereotactic ablative radiotherapy with simultaneous integrated boost, respectively in people with Oligometastatic Disease, run by IRCCS San Raffaele at 1 site in Italy.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 10 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 27 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Italy. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Nadia G Di Muzio, Prof. (+390226437643, dimuzio.nadia@hsr.it), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Local recurrence-free surival (time frame: 3 years from the end of treatment). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05679427, which also lists 20 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Oct 2026.

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