Personalized treatment for neuroendocrine tumors using targeted radiation therapy

Systemic Targeted Adaptive RadioTherapy of NeuroEndocrine Tumors. An Open-label, Multicenter, Randomized Phase III Trial Comparing Safety and Efficacy of Personalized Versus Non-personalized Radionuclide Therapy With 177Lu (Lutetium)-DOTATOC.

PHASE3 · Lund University Hospital · NCT05387603

This study is testing whether a personalized type of radiation therapy can work better than a standard version for people with advanced neuroendocrine tumors.

Quick facts

PhasePHASE3
Study typeInterventional
Enrollment300 (estimated)
Ages18 Years and up
SexAll
SponsorLund University Hospital (other)
Locations4 sites (Gothenburg and 3 other locations)
Trial IDNCT05387603 on ClinicalTrials.gov

What this trial studies

This clinical trial aims to compare personalized peptide receptor radionuclide therapy (PRRT) with non-personalized PRRT for patients with advanced neuroendocrine tumors. The study will evaluate the safety, efficacy, and resource demands of these two approaches to optimize treatment outcomes. Participants will receive 177Lu-DOTATOC and Capecitabine as part of their treatment regimen. The goal is to establish a more effective and tailored treatment strategy for patients with neuroendocrine tumors.

Who should consider this trial

Good fit: Ideal candidates include adults aged 18 and older with advanced, well-differentiated, inoperable neuroendocrine tumors that have shown radiological progression.

Not a fit: Patients with pheochromocytoma or paraganglioma, or those who have not shown tumor progression within the specified timeframe, may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to more effective and personalized treatment options for patients with neuroendocrine tumors.

How similar studies have performed: Other studies have shown promise in personalized radionuclide therapy approaches, suggesting potential for success in this trial.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age ≥18 years
* Written informed consent
* Eastern Cooperative Oncology Group (ECOG) 0-1
* Presence of histologically confirmed, advanced, well-differentiated, inoperable neuroendocrine tumors (NET) of any primary tumor origin and any grade, except for pheochromocytoma and paraganglioma.
* Somatostatine receptor (SSTR)-expression in tumor lesions \> basal liver uptake on 68Ga-DOTA-PET
* Radiologically progressive disease within the last 1-24 months according to common clinical criteria and confirmed by the institutional multidisciplinary conference for the treatment of NETs. The CT/MRI that shows tumor progression compared to screening/baseline must have been performed 1-24 months earlier.
* All previous anti-tumor treatment except SSA must be terminated at least 4 weeks before start of treatment within the trial.
* Measurable disease according to RECIST v 1.1
* Given the available, approved anti-tumor treatments and the specific characteristics of the patient and the tumor, the investigator judges peptide receptor radionuclide therapy (PRRT) to be the treatment of choice
* GFR \> 50 ml/min/1.73 m2 as determined by iohexol- or 51Cr-EDTA clearance, calculated according to a combination of LMR18 and CAPA formulas, or equally accurate method
* Hemoglobin \> 90 g/L, platelets \>100 x109/L, leukocytes \> 3.0x109/L, neutrophils \> 1.5 x109/L, aspartate transaminase (ASAT)/alanine aminotransferase (ALAT) \< 3 x ULN, bilirubin \< 2 x upper limit of normal (ULN), albumin \> 25 g/L
* For women of child-bearing potential, highly effective contraception should be used from the time of inclusion up to at least six months after the end of treatment (EOT) visit.

Exclusion Criteria:

* Pregnancy or lactation
* Previous treatment with PRRT
* Concomitant systemic anti-tumor therapy other than somatostatin analogue (SSA)
* Contraindications for treatment with capecitabine according to the approved label.
* Discordance between CT/MRI/18F-FDG-PET and 68Ga-DOTA-PET, with evidence of tumor lesions without uptake on 68Ga-DOTATOC.
* Any other serious, uncontrolled medical or psychiatric condition that, in the opinion of the investigator, precludes the patient from participation in the trial
* Unwillingness, or inability, to participate in any part of the trial procedures or treatments.

Where this trial is running

Gothenburg and 3 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.

View on ClinicalTrials.gov →

Conditions: Neuroendocrine Tumors, Neuroendocrine tumors, Radionuclide therapy, Personalized radionuclide therapy, 177Lu-DOTATOC, Capecitabine, Dosimetry-based radionuclide therapy, Somatostatin receptor

Last reviewed 2026-05-15 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.