Austin, Texas, October 25, 2025 – ITM Isotope Technologies Munich SE (ITM), a leading radiopharmaceutical biotech company, announced analyses data from its Phase 3 COMPETE trial in patients with Grade 1 or Grade 2 somatostatin receptor (SSTR)-positive gastroenteropancreatic neuroendocrine tumors (GEP-NETs). Results showed consistently higher objective response rates (ORR) and longer progression-free survival (PFS) across subgroups in patients treated with n.c.a. 177Lu-edotreotide (also known as ITM-11 or 177Lu-edotreotide) compared to everolimus, reinforcing its previously reported efficacy profile. Data were shared by study investigator, Jaume Capdevila, MD, PhD, in both oral and poster presentations at the 2025 North American Neuroendocrine Tumor Society (NANETS) Annual Multidisciplinary NET Medical Symposium, held October 23-25, 2025, in Austin, Texas.
As previously announced at ENETS 2025, the COMPETE trial, which included a total of 309 patients randomized to either 177Lu-edotreotide (n=207) or everolimus (n=102), met its primary endpoint of progression-free survival, or PFS, (23.9 vs. 14.1 months; p=0.022; HR 0.67, 95% CI [0.48, 0.95]). At ESMO 2025, ITM announced that the COMPETE trial also met a key secondary endpoint of objective response rate (ORR) (21.9% vs 4.2%, p<0.0001).
In this analysis of the COMPETE trial presented at NANETS 2025, the key findings showed:
- ORR was higher in patients in the 177Lu-edotreotide arm vs. everolimus across subgroups, including those with pancreatic NETs, Grade 1 tumors, Grade 2 tumors, and those who had received prior therapy (2nd line); post-hoc analysis
- Although data is still maturing, there was a preliminary trend of longer median overall survival (OS) in the 177Lu-edotreotide arm vs. everolimus in most patient subgroups
| ORR and OS Subgroup Analyses Based on Blinded Independent Central Review (BICR): Phase 3 COMPETE Trial 177Lu-edotreotide (n=207 patients) vs. everolimus (n=102 patients) | ||
| | Objective Response Rate (ORR); post-hoc analysis | Overall Survival (OS) |
| Primary Tumor Origin Gastroenteric NET Pancreatic NET | 6.0 % v. 5.0% 33.3% v. 3.6% | 63.4 months v. 58.7 months (p value = 0.799) 65.7 months v. 49.3 months (p value=0.263) |
| Tumor Grade 1 Grade 1 Grade 2 | 15.8% v. 3.3% 28.3% v. 3.1% | NR2 v. NR (p value=0.702) 56.7 months vs. 41.4 months (p value=0.082) |
| Prior Medical Therapy Treatment-naïve (1st line) Prior therapy (2nd line) | 17.9% v. 5.9% 22.5% v. 3.8% | 57.4 months v. NR (p value= 0.016) 63.4 months v. 43.4 months (p value=0.018) |
| 1Central assessment according to WHO classification, 2Not reached | ||
“We are encouraged by the positive trends we see in PFS extension and higher ORR for 177Lu-edotreotide compared to everolimus in these patient subgroups. These results strengthen the existing data set for Lu-edotreotide’s potential as a new therapeutic option for people living with inoperable GEP-NETs,” said Dr. Capdevila, senior medical oncologist at Vall d'Hebron University Hospital, Barcelona.
ITM also announced real-world clinical and meta-analysis data in patients with a range of neuroendocrine tumors at NANETS.
In early October, ITM presented dosimetry data from the COMPETE trial at the European Association of Nuclear Medicine (EANM) Annual Congress in Barcelona, Spain. The data showed that 177Lu-edotreotide delivered targeted radiation to tumors while minimizing exposure to healthy tissue, supporting its efficacy and safety profile.
“These additional subgroup data reinforce and extend evidence from the COMPETE Phase 3 trial, supporting 177Lu-edotreotide’s potential as a promising radiopharmaceutical therapy for neuroendocrine tumors if approved,” said Dr. Andrew Cavey, chief executive officer of ITM.
Oral Presentation Details
Title: Efficacy of 177Lu-edotreotide vs everolimus in patients with grade 1 or grade 2 GEP-NETs: Phase 3 COMPETE trial (post hoc subgroup analyses)
Date and Time: October 24, 2025, 3:35-4:50 pm Central Time
Session: Part II Featured Abstracts| Access to New Treatments - How can we bring innovative treatments to patients more quickly and effectively?
Presenter: Jaume Capdevila, MD, PhD, senior researcher, department of Medical Oncology, Vall d'Hebron University Hospital & Vall d'Hebron Institute of Oncology
Poster Presentation Details:
Title: Efficacy of 177Lu-edotreotide vs everolimus in patients with grade 1 or grade 2 GEP-NETs: Phase 3 COMPETE trial (post hoc subgroup analyses)
Date and Time: Friday, October 24, 5:15-6:30 pm Central Time
Session: NANETS Poster Tour
Presenter: Dr. Jaume Capdevila, Vall d'Hebron University Hospital, Barcelona.
Title: First-line Treatment with 177Lu-edotreotide ([177Lu]Lu-DOTATOC) in patients with NETs: a Swiss NET Registry Analysis
Date and Time: Friday, October 24, 5:15-6:30 pm Central Time
Session: NANETS Poster Tour
Presenter: Dr. Guillaume Nicolas, University Hospital Basel
Title: Efficacy and safety of 177Lu-edotreotide ([177Lu]Lu-DOTATOC) for the treatment of neuroendocrine tumors (NETs) – a systematic literature review (SLR) and meta-analysis
Date and Time: Friday, October 24, 5:15-6:30 pm Central Time
Session: NANETS Poster Tour
Presenter: Dr. Julia G Fricke, University Hospital Basel
About the COMPETE Trial
The COMPETE trial (NCT03049189) evaluated 177Lu-edotreotide (ITM-11), a proprietary, synthetic, targeted radiotherapeutic investigational agent compared to everolimus, a targeted molecular therapy, in patients with inoperable, progressive Grade 1 or Grade 2 gastroenteropancreatic neuroendocrine tumors (GEP-NETs). This trial met its primary endpoint, with 177Lu-edotreotide demonstrating clinically and statistically significant improvement in progression-free survival (PFS) compared to everolimus. 177Lu-edotreotide is also being evaluated in COMPOSE, a Phase 3 study in patients with well-differentiated, aggressive Grade 2 or Grade 3, SSTR-positive GEP-NET tumors.
About ITM Isotope Technologies Munich SE
ITM, a leading radiopharmaceutical biotech company, is dedicated to providing a new generation of radiopharmaceutical therapeutics and diagnostics for hard-to-treat tumors. We aim to meet the needs of cancer patients, clinicians, and our partners through excellence in development, production, and global supply of medical radioisotopes. With improved patient benefit as the driving principle for all we do, ITM advances a broad precision oncology pipeline, including multiple phase 3 studies, combining the company’s high-quality radioisotopes with a range of targeting molecules. By leveraging our two decades of pioneering radiopharma expertise, central industry position and established global network, ITM strives to provide patients with more effective targeted treatment to improve clinical outcome and quality of life. www.itm-radiopharma.com
ITM Contacts:
Corporate Communications
Kathleen Noonan/Julia Westermeir
Phone: +49 89 329 8986 1500
Email: communications@itm-radiopharma.com
Investor Relations
Ben Orzelek
Phone: +49 89 329 8986 1009
Email: investors@itm-radiopharma.com
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