NCT05406063

Brief Summary

To investigate, whether multi-fraction stereotactic body radiation therapy (SBRT) within 3 treatment fractions is non-inferior to the current standard of care of 5 fraction SBRT regarding pain response at 3 months after radiotherapy.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
162

participants targeted

Target at P75+ for not_applicable

Timeline
1mo left

Started Jun 2022

Longer than P75 for not_applicable

Geographic Reach
1 country

2 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress98%
Jun 2022May 2026

First Submitted

Initial submission to the registry

May 3, 2022

Completed
29 days until next milestone

Study Start

First participant enrolled

June 1, 2022

Completed
5 days until next milestone

First Posted

Study publicly available on registry

June 6, 2022

Completed
3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 31, 2025

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

May 31, 2026

Expected
Last Updated

May 22, 2025

Status Verified

May 1, 2025

Enrollment Period

3 years

First QC Date

May 3, 2022

Last Update Submit

May 19, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Pain relief (response rate) measured with the Visual Analog Scale (VAS) from Baseline to 3 months after treatment.

    The Visual Analog Scale is a validated, subjective measure for pain. Possible scores ranges between zero (no pain) and ten (worst possible pain). The primary endpoint was defined as pain relief \> 2 points from Baseline to 3 months after treatment.

    Baseline and 3 months after treatment

Study Arms (2)

SBRT with 9 Gy x 3 fractions to the treatment site.

EXPERIMENTAL

Patients will be treated with SBRT delivering 9 Gy x 3 fractions (BED10: 51.3 Gy) to the treatment site.

Radiation: SBRT

SBRT with 7 Gy x 5 fractions to the treatment site

ACTIVE COMPARATOR

Patients will be treated with SBRT delivering 7 Gy x 5 fractions (BED10: 59.5 Gy) to the treatment site.

Radiation: SBRT

Interventions

SBRTRADIATION

Stereotactic multiple fraction radiotherapy

SBRT with 7 Gy x 5 fractions to the treatment siteSBRT with 9 Gy x 3 fractions to the treatment site.

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Personally signed and dated written informed consent,
  • Histological diagnosis of malignancy,
  • Histologically or radiologically diagnosed bone metastasis,
  • Age ≥ 18 years
  • Pain or under pain control medication

You may not qualify if:

  • Pregnant or lactating women,
  • Women of childbearing potential or sexually active males not willing to use effective contraception while on treatment and 3 months after the end of treatment,
  • Inability to follow the procedures of the study, e.g., due to language problems, psychological disorders, dementia, etc.,
  • Prior radiotherapy to the intended treatment site,
  • Lesions \> 5cm in maximum diameter,
  • Prior treatment with radioactive isotopes within 30 days of randomisation,
  • Spinal column, hands, feet, or head as intended treatment site,- Fracture at the intended treatment site,
  • Surgery required or previous surgery at the intended treatment site
  • Instability of the intended treatment site.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Kantonsspital Winterthur

Winterthur, Canton of Zurich, 8401, Switzerland

RECRUITING

University Hospital Bern

Bern, 3010, Switzerland

RECRUITING

Related Publications (1)

  • Foerster R, Zwahlen DR, Schroeder C, Windisch P, Halatsch ME, Alfieri A, Meier C, Hemmatazad H, Aebersold DM, Buchali A, Habermehl D, Batifi N. SMILE-stereotactic multiple fraction radiotherapy for non-spine bone metastases: study protocol for a multicenter, open-label phase III randomized controlled trial. Trials. 2024 Nov 13;25(1):762. doi: 10.1186/s13063-024-08608-6.

MeSH Terms

Conditions

Pain

Condition Hierarchy (Ancestors)

Neurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Robert Foerster, MD

    Kantonsspital Winterthur KSW

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Robert Foerster, MD

CONTACT

Nidar Batifi, RN

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 3, 2022

First Posted

June 6, 2022

Study Start

June 1, 2022

Primary Completion

May 31, 2025

Study Completion (Estimated)

May 31, 2026

Last Updated

May 22, 2025

Record last verified: 2025-05

Data Sharing

IPD Sharing
Will not share

Locations