New PET scan tracer could sharpen view of melanoma treatment response
NCT ID NCT07215182
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This phase 2 trial is testing whether a new radioactive tracer, [68Ga]Ga-FAPI-46, can improve how doctors evaluate response to immunotherapy in patients with stage IV melanoma. Twenty participants will receive two experimental PET/CT scans—one before starting immunotherapy and one after three months—along with blood samples. The results will be compared with standard FDG PET/CT scans to see if the new tracer provides clearer information about tumor changes.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- [68Ga]Ga-FAPI-46 (an experimental imaging tracer)
- What this could lead to
- If successful, this could provide a more accurate way to measure how well immunotherapy is working in advanced melanoma patients, potentially guiding treatment decisions.
- What could go wrong
- This is a small, early-phase study (20 participants) focused on imaging, not treatment. The tracer may not prove more useful than current standard scans, and results may not apply to all patients.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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About 20 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Aug 2025
- Expected to finish
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Feb 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Male or female, \>/=18 years old 2. Histological verified metastatic or locally advanced malignant melanoma 3. Visible malignant lesions on \[18F\]FDG PET/CT or CT 4. Subjects must be considered inoperable 5. Subjects must be considered medically suitable for ICT 6. Subjects must be able to read and understand the patient information in Danish to give informed consent Exclusion Criteria: 1. Ocular or mucosal melanoma 2. Other concurrent cancer disease 3. Previous systemic oncological treatment with ICT 4. Pregnancy or lactation 5. Weight more than the maximum limit of a PET/CT-scanner bed (140 kg) 6. History of allergic reaction due to compounds similar to the chemical composition of \[68Ga\]Ga-FAPI- 46
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
2 sites. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Herlev Universityhospital
RECRUITINGHerlev, Capital Region, 2730, Denmark
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Rigshospitalet
RECRUITINGCopenhagen, Ca, 2100, Denmark
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