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Oligometastatic DiseasePROMPTNCT05903261

Prospective Observational Basket Study of Stereotactic Body Radiation Therapy for OligoMetastatic Patients From Rare Tumors

An observational study of Oligometastatic Disease, run by Istituto Clinico Humanitas 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 prospective observational study aims to investigate the effectiveness and safety of SBRT in the management of oligometastases from rare tumors. In addition, the study aims to identify potential differences in treatment efficacy and toxicity between different types of cancer and to provide valuable information on… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Oligometastatic Disease
What is being tested?
SBRT
Type of treatment
Surgery or procedure
How many people
200 participants
Where
1 siteItaly
Study dates
9 Jun 2023to Jun 2026
Phase
Observational
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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Patients who underwent stereotactic body radiation therapy (SBRT) for oligometastases from rare solid tumors including melanoma, soft tissue sarcoma, head-neck tumors, gynaecological tumors, Merkel cell carcinoma, thymic carcinoma, gastrointestinal stromal tumors (GIST) and urothelial tumors

Who may be able to join

  • ECOG PS 0 - 2
  • histologically confirmed diagnosis of rare solid tumors including melanoma, soft tissue sarcoma, head-neck tumors, gynaecological tumors, Merkel cell carcinoma, thymic carcinoma, gastrointestinal stromal tumors (GIST) and urothelial tumors
  • No limit to the number of metastases treated with SBRT but all active lesions must be treated with radical intent (primary tumor and metastases)
  • Synchronous and metachronous oligometastases, as well as oligorecurrent and oligoprogressive disease are allowed
  • Ablative dose intended as a minimum dose of 50Gy EQD2/10 in a maximum of 10 fractions
  • No restrictions to prior or on-going systemic therapies

Who cannot join

  • prior treatment with radiation to the same metastatic site
  • inability to provide informed consent
  • contraindications to SBRT

Trial locations and contacts

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

Italy1 site, 1 recruiting
  • Humanitas Research Hospital

    Rozzano, Milan, 20089

    Marta Scorsetti, MD PhD, +390282248524, marta.scorsetti@humanitas.it

    Marta Scorsetti, MD PhD

    Recruiting

Other trials in Italy

About this study

Official title: Prospective Observational Basket Study of Stereotactic Body Radiation Therapy for OligoMetastatic Patients From Rare Tumors: the PROMPT Study

This prospective observational study aims to investigate the effectiveness and safety of SBRT in the management of oligometastases from rare tumors. In addition, the study aims to identify potential differences in treatment efficacy and toxicity between different types of cancer and to provide valuable information on the use of SBRT in these contexts, potentially leading to better treatment options and outcomes for these patients.

Read the detailed description

Oligometastases, defined as limited number of metastases (commonly from one up to five), are increasingly recognized as a distinct clinical entity in cancer management. Recently, the collaboration of experts from ESTRO and EORTC societies elaborated a consensus document and recommended a classification of oligometastatic patients into specific subcategories, according to 17 disease characterization factors and 5 different questions. Emerging evidence suggests that local treatment of oligometastases with stereotactic body radiation therapy (SBRT) can achieve excellent local control with minimal toxicity.

Indeed, the majority of clinical trials investigating the use of SBRT for oligometastases have focused on common solid tumors. There is limited data on the use of SBRT for oligometastases from rare primary tumors such as melanoma, soft tissue sarcoma, head-neck tumors, gynaecological tumors, Merkel cell carcinoma, thymic carcinoma, gastrointestinal stromal tumors (GIST) and urothelial tumors. Additionally, patients with rare tumors often have limited treatment options, and thus, the use of metastases-directed SBRT may provide a potential curative treatment option for these patients.

The use of SBRT for oligometastases from rare tumors is promising, as local control rates have been reported to be high, and the toxicity profile favorable. Additionally, patients with rare tumors often have limited treatment options, and thus, the use of metastases-directed SBRT may provide a potential curative treatment option for these patients. By investigating multiple rare tumor types within one trial, this study aims to identify potential differences in treatment efficacy and toxicity among the different tumor types, and to provide valuable insights into the use of SBRT in this setting, potentially leading to improved treatment options and outcomes for these patients.

Being tested
SBRT

What participants receive

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

  • SBRTRadiation

    stereotactic body radiation therapy (SBRT)

What is being measured

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

  1. local control of treated metastases at 2 years after SBRT

    local control of treated metastases at 2 years after SBRT

    Measured: 2 years

Secondary outcomes (5)
  1. overall survival

    overall survival

    Measured: 2 years

  2. progression-free survival

    time for which the patient has no trace oligometastatic progression

    Measured: 2 years

  3. distant control

    analyze the formation of new metastases distant from the oligometastatic site

    Measured: 2 years

  4. toxicity rates

    toxicity values caused by SBRT

    Measured: 2 years

  5. quality of life of patients

    will also be assessed using validated patient-reported outcome measures

    Measured: 2 years

Timeline

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

  1. First posted15 Jun 2023
  2. Study start9 Jun 2023
  3. Primary completionJun 2026 (estimated)
  4. Study completionJun 2026 (estimated)

Resources

More details

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

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
200 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05903261
Sponsor's protocol ID
3497
Acronym
PROMPT
Status last verified
Apr 2025
First submitted
5 Jun 2023
Last updated
25 Apr 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of Oligometastatic Disease, run by Istituto Clinico Humanitas 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 3 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 25 Apr 2025. 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 Marta MD Scorsetti (+ 39 02 8224 7454, marta.scorsetti@hunimed.eu), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

local control of treated metastases at 2 years after SBRT (time frame: 2 years). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 25 Apr 2025.

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