RAPid SimPLE Targeted Radiation Treatment for Brain Metastases

NCT ID: NCT05050929

Last Updated: 2025-04-17

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE2

Total Enrollment

100 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-07-01

Study Completion Date

2027-12-30

Brief Summary

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The aim of the study is to show that rapid, simple targeted radiotherapy to brain metastases with 8 Gy / 1 is non-inferior to 20 Gy / 5 in terms of overall survival for patients with poor prognosis.

Detailed Description

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Hypothesis For selected patients with limited life expectancy, a single targeted fraction of 8 Gy / 1 to brain metastases will provide equivalent survival as targeted radiotherapy with 20 Gy / 5 to brain metastases.

Justification The QUARTZ study randomized patients with brain metastases and poor prognosis between 20 Gy / 5 whole brain radiotherapy (WBRT) and best supportive care. The median survival in both arms of the study was 9 weeks. The quality of life in both arm was also the same. It is known that WBRT significantly diminishes quality of life. The investigators interpretation of the QUARTZ trial is that the unchecked growth of brain metastases in the best supportive care arm diminishes quality of life as much as WBRT. To control brain metastases without giving WBRT, targeted treatment with 20 Gy / 5 to the metastases alone is standard care at BC Cancer. Numerous randomized trials have compared the efficacy of 20-30 Gy / 5-10 fractions and 8 Gy / 1 for palliative treatment of pain from bone metastases. In addition, there is a randomized trial showing that 20 Gy / 5 and 8 Gy /1 are equally effective for the treatment of symptoms from spinal cord compression. This study will test the use of this shorter, one-visit treatment schedule against the standard 5-visit treatment schedule for patients with brain metastases.

Research Design Randomized Phase II Non-Inferiority Study. The estimated median survival for this cohort, based upon a prior cohort study from 2012-2016 at BC Cancer is 3 months (13 weeks). The investigators would regard a study median survival of less than the 9-week median survival observed in the QUARTZ trial as unacceptable. Hence, the hazard ratio for the experimental arm and the control arm is: 13 weeks / 9 weeks = 1.44. With one-sided Type I error set at alpha = 0.2 and power = 0.8, the investigators calculated a theoretical sample size of 86 patients. Based on prior experience with clinical trials for patients with brain metastases, a 15% risk of drop-out and loss to follow up is expected. Hence the final sample size will be 100 patients. Stratification by the diagnosis-specific graded prognostic assessment (DS-GPA) ranges of 0.0 - 1.0 and 1.5 - 2.0 and lung cancer versus other histologies will help to ensure baseline characteristics that predict for equal survival are equally distributed in both arms of the study.

Statistical Analysis The primary endpoint is overall survival. The study will be considered to be a positive phase II non-inferiority study if the median survival in the experimental arm is within 4 weeks of the median survival in the standard arm.

Conditions

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Brain Metastases, Adult

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Equal arms (1:1)
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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20 Gy in 5 Fractions Volumetric Modulated Arc Therapy to Brain Metastases

Five treatments of 4 Gy will be delivered using volumetric modulated arc therapy on a conventional linear accelerator in a conventional head shell without the use of stereotactic radiosurgery technique.

Group Type ACTIVE_COMPARATOR

Targeting All Brain Metastases

Intervention Type RADIATION

Volumetric Modulated Arc Therapy

8 Gy in 1 Fraction Volumetric Modulated Arc Therapy to Brain Metastases

A single treatment of 8 Gy will be delivered using volumetric modulated arc therapy on a conventional linear accelerator in a conventional head shell without the use of stereotactic radiosurgery technique.

Group Type EXPERIMENTAL

Targeting All Brain Metastases

Intervention Type RADIATION

Volumetric Modulated Arc Therapy

Interventions

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Targeting All Brain Metastases

Volumetric Modulated Arc Therapy

Intervention Type RADIATION

Eligibility Criteria

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Inclusion Criteria

Subjects must meet all of the following criteria to be eligible for participation in this study:

* Age ≥ 18
* Pathological diagnosis of a non-hematopoietic malignancy
* Brain metastases of any size
* Any number of untreated or progressing, previously treated brain metastases that can all be contoured and targeted
* Presence of extracranial disease
* Diagnosis-Specific Graded Prognostic Assessment ≤ 2.0. (https://brainmetgpa.com/) or Graded Prognostic Assessment ≤ 2.0 (Appendix I)
* Able to complete the EuroQOL (EQ-5D-5L) questionnaire
* Willing and able to have regular imaging follow up
* Feasible to start protocol treatment within 14 days of participant enrolment
* Karnofsky Performance Score (KPS) ≥ 50

Exclusion Criteria

Subjects are excluded from the study if any of the following criteria apply:

* Inability to have a brain MRI
* WBRT less than 3 months prior to randomization
* Disseminated leptomeningeal carcinomatosis (limited pachymeningeal disease is permitted)
* Multiple sclerosis
* Neurologically declining despite corticosteroids
* Appropriate for surgery or stereotactic radiosurgery
* Germ cell and primary brain tumours
* Systemic lupus erythematosis, scleroderma, or other connective tissue disorders not in remission
* Any other serious intercurrent illness or medical condition judged by the local investigator to compromise the participant's safety, preclude safe administration of the planned protocol treatment, or prevent the participant from being managed according to the protocol guidelines
* Pregnancy
* Potentially fertile men or women of childbearing potential who are unwilling to employ highly effective contraception
Minimum Eligible Age

18 Years

Maximum Eligible Age

100 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Varian Medical Systems

INDUSTRY

Sponsor Role collaborator

British Columbia Cancer Agency

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Alan Nichol, MD

Role: PRINCIPAL_INVESTIGATOR

BC Cancer Vancouver

Locations

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BC Cancer - Abbotsford

Abbotsford, British Columbia, Canada

Site Status RECRUITING

BC Cancer - Kelowna

Kelowna, British Columbia, Canada

Site Status RECRUITING

BC Cancer - Prince George

Prince George, British Columbia, Canada

Site Status RECRUITING

BC Cancer - Surrey

Surrey, British Columbia, Canada

Site Status RECRUITING

BC Cancer - Vancouver

Vancouver, British Columbia, Canada

Site Status RECRUITING

BC Cancer - Victoria

Victoria, British Columbia, Canada

Site Status RECRUITING

Countries

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Canada

Central Contacts

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Sandy Chang

Role: CONTACT

604-877-6000 ext. 2683

Facility Contacts

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Fred Hsu, BSc MD FRCPC

Role: primary

6048514710

Benjamin Mou, MD FRCPC DABR

Role: primary

250-712-3900

Robert Olson, MD MSc FRCPC

Role: primary

25064573000

Sarah Baker, MD

Role: primary

604.930.2098

Sandy Chang

Role: primary

604-675-4100 ext. 202199

Isabelle Vallieres, MD MSc FRCPC

Role: primary

2505195577

References

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Mulvenna P, Nankivell M, Barton R, Faivre-Finn C, Wilson P, McColl E, Moore B, Brisbane I, Ardron D, Holt T, Morgan S, Lee C, Waite K, Bayman N, Pugh C, Sydes B, Stephens R, Parmar MK, Langley RE. Dexamethasone and supportive care with or without whole brain radiotherapy in treating patients with non-small cell lung cancer with brain metastases unsuitable for resection or stereotactic radiotherapy (QUARTZ): results from a phase 3, non-inferiority, randomised trial. Lancet. 2016 Oct 22;388(10055):2004-2014. doi: 10.1016/S0140-6736(16)30825-X. Epub 2016 Sep 4.

Reference Type BACKGROUND
PMID: 27604504 (View on PubMed)

Other Identifiers

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H21-01343

Identifier Type: -

Identifier Source: org_study_id

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