Effect of Stereotactic Body Radiotherapy on Metastatic Cancer Treatment

PROMISE-005: A Phase II Randomized Study Assessing the Efficacy of Stereotactic Body Radiotherapy (SBRT) in Patients With Oligometastatic Breast or Lung Cancer

Phase 2 Interventional Memorial Sloan Kettering Cancer Center · NCT03808337

This study tests if combining a targeted type of radiation therapy with regular treatment can help people with metastatic cancer, like triple negative breast cancer and non-small cell lung cancer, live longer before their disease gets worse.

Quick facts

PhasePhase 2
Study typeInterventional
Enrollment145 (estimated)
Ages18 Years and up
SexAll
SponsorMemorial Sloan Kettering Cancer Center Academic / other
Drugs / interventionsradiation
Locations12 sites (San Carlos, California and 11 other locations)
Trial IDNCT03808337 on ClinicalTrials.gov

What this trial studies

This clinical trial investigates the effectiveness of stereotactic body radiotherapy (SBRT) combined with standard care for patients with metastatic cancer, specifically targeting those with 1-5 metastases. The goal is to determine if this approach can prolong the time before the disease worsens. Participants will receive SBRT to all sites of disease, alongside their standard systemic therapy. The study focuses on patients with triple negative breast cancer and non-small cell lung cancer, among others.

Who should consider this trial

Good fit: Ideal candidates include individuals with metastatic breast cancer or non-small cell lung cancer who have 1-5 metastases and meet specific eligibility criteria.

Not a fit: Patients with extensive metastatic disease beyond 5 sites or those with certain targetable molecular alterations who have not progressed on first-line therapy may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could significantly extend the time patients live without disease progression.

How similar studies have performed: Other studies have shown promising results with SBRT in similar patient populations, indicating potential for success in this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Metastatic disease detected on imaging and histologically confirmed

  * Metastatic breast cancer (all subtypes)
  * Non-small cell lung cancer (NSCLC) without known targetable molecular alterations in EGFR, ALK, or ROS1
  * NSCLC with EGFR, ALK, or ROS1 targetable molecular alterations who had a history of disease progression on first-line tyrosine kinase inhibitor
* Patient can either have newly diagnosed metastatic disease, or have non-progressive disease on systemic therapy (for at least 3 months on systemic imaging)
* Patients must have measurable disease at baseline (RECIST or PERCIST 2.0) and with 5 or fewer discrete disease sites that are technically amendable to SBRT (with the exception that if the primary disease is not amendable to SBRT it is allowed to be treated with conventionally fractionated or hypfractionated radiotherapy).

  * Two lesions in such close proximity to one another that treatment with one isocenter is more accurate and safer in the liver, lungs, or other similar anatomic locations should be viewed as one site of metastatic disease treatment
  * Disease in 2 contiguous vertebral bodies (with up to 6 cm of paraspinal extension) can represent one site of disease in the spine; non-contiguous lesions in vertebral bodies separated by one vertebral body free of disease should be viewed as 2 sites of treatment
  * If the clinical scenario deem that other forms of local therapy may be more suitable for the metastatic disease, such as surgical resection and interventional radiology-guided ablation, patients would be able to undergo other forms of local therapy with discussion with the PI.
* For de novo stage IV patients (patients with metastatic disease at first presentation), primary disease must be treatable with local therapy. If the primary tumor or other locoregional disease has not been definitively treated and is not amendable to SBRT, it must be treated with conventionally fractionated or hypofractionated radiotherapy using a regimen that delivers a minimum BED of 48 Gy10. If the clinical scenario deem that other forms of local therapy may be more suitable for the primary and locoregional disease, such as surgical resection and interventional radiology-guided ablation, patients would be able to undergo other forms of local therapy with discussion with the PI.
* If primary disease was previously treated with local therapy in the form of surgery or radiation, any new local/regional disease recurrence should be technically treatable with SBRT or hypofractionated radiation. If the clinical scenario deem that other forms of local therapy may be more suitable for the local/regional recurrent disease, such as surgical resection and interventional radiology-guided ablation, patients would be able to undergo other forms of local therapy with discussion with the PI.
* Patients may receive palliative radiotherapy for symptomatic metastases or primary disease prior to enrollment provided that there is at least one other non-irradiated lesion amenable to SBRT at the time of enrollment.
* Patients with brain metastases are eligible if these lesions have been treated prior to enrollment.
* ECOG Performance status 0 - 2.
* Age \>/= 18 years.
* Able to provide informed consent.
* Female subjects must either be of non-reproductive potential (i.e. post-menopausal by history: \>/= 60 years old or no menses for 1\> year without an alternative medical cause; OR history of hysterectomy, OR history of bilateral tubal ligation, OR history of bilateral oophorectomy) or must have a negative serum pregnancy test within 2 weeks prior to starting treatment.
* Adequate baseline organ function to allow SBRT to all relevant targets, as determined by the treating radiation oncologist based on lesion location, lesion size, and proximity to relevant organs at risk.

Exclusion Criteria:

* Serious medical co-morbidities precluding radiotherapy, determined at the discretion of the treating investigator.
* Pregnant or lactating women.
* Other active malignancy within the last year, even if without evidence of disease.
* Clinical or radiological evidence of spinal cord compression
* Malignant pleural effusion or ascites.
* Patients whose entry to the trial will cause unacceptable clinical delays in their planned management.

Where this trial is running

San Carlos, California and 11 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Triple Negative Breast CancerNon Small Cell Lung CancerMetastatic Breast CancerMetastatic Non-Small Cell Lung CarcinomaStereotactic body radiotherapySBRT18-486Memorial Sloan Kettering Cancer Center
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.