About this trial
This prospective study will evaluate the safety, biodistribution, dosimetry, and imaging performance of 68Ga-NYM215 PET/CT in patients with neuroendocrine neoplasms. An head-to-head comparison with 68Ga-DOTATATE PET/CT will assess the diagnostic performance of 68Ga-NYM215 PET/CT at both the patient and lesion levels.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Aged 18 to 80 years.
Histopathologically confirmed neuroendocrine tumor.
At least one suspected lesion based on other imaging findings or clinical assessment.
Disqualifiers
Combined with other types of tumors.
Severe liver or renal dysfunction (ALT/AST≥5 ULN, GFR#30ml/min).
Active infection.
Pregnant or breastfeeding women.
Trial design
Single group
Treatments tested in this trial
68Ga-NYM215 PET/CT
Diagnostic test40 patients will be enrolled in this arm. Each patients will be injected with approximately 3mCi 68Ga-NYM215. The first 8 participants will undergo serial 68Ga-NYM215 PET imaging at 5, 15, 30, 45, 60, and 120 minutes after 68Ga-NYM215 administration. Subsequent participants will undergo whole-body 68Ga-NYM215 PET/CT at 40 to 60 minutes after administration.
68Ga-DOTATATE PET/CT
Diagnostic testEach patients will be injected with approximately 3mCi 68Ga-DOTATATE. All participants will undergo whole-body 68Ga-DOTATATE PET/CT at 40 to 60 minutes after radiotracer administration. The two PET/CT examinations will be performed within 1 week, with an interval of at least 24 hours to minimize potential cross-interference.
Treatment groups
Trial outcomes
Primary outcomes
Diagnostic efficacy
Diagnostic efficacy of 68Ga-NYM215 PET/CT compared with 68Ga-DOTATATE PET/CT in the same participant, assessed on both a per-patient and per-lesion basis. Per-patient analysis will compare lesion detection rate. Per-lesion analysis will compare lesion detection rate, lesion number, size, SUVmax, and tumor-to-background ratio (TBR).
Safety
Adverse effects after radiotracer injection.
Secondary outcomes
Biodistribution
The biodistribution of 68Ga-NYM215 will be evaluated in the following organs: pituitary gland, parotids, thyroids, lungs, blood pool, liver, spleen, pancreas (head and uncinate process), gallbladder, stomach, small intestine, kidneys, and adrenal glands.
Dosimetry
Absorbed dose for target organs, urinary bladder residence time, and whole-body effective dose were determined for 68Ga-NYM215.
Sponsors and contacts
Click on the lead sponsor to view all of their trials.
This trial is not recruiting at the moment. You can still explore other options: