DLL3 Expression in Neuroendocrine Neoplasms – an overview
Updated 20th August 2025 - Background - Conventional therapeutic targets for neuroendocrine tumours (NETs) include somatostatin receptors (SSTRs), mammalian Target of Rapamycin (mTOR), Vascular Endothelial Growth Factor (VEGF), and tyrosine kinases. These pathways are crucial for tumour growth, survival, and angiogenesis. The most well known is SSTRs given that most NETs express these and allows targeted therapies such as somatostatin analogues (SSA) and peptide receptor radionuclide therapy (PRRT) to be used. Other targeted therapies like everolimus and sunitinib, which inhibit mTOR and tyrosine kinases respectively. Sunitinib also targets VEGF as does cabozantinib. For neuroendocrine carcinomas (Grade 3 poorly differentiated), targeting…
A spotlight on Grade 3 (High grade) Neuroendocrine Neoplasms
Reviewed and updated 3rd Jan 2025 High Grade Neuroendocrine Neoplasms - the forgotten patient group? When reading articles in the mainstream media, found in medical publications; and even listening to doctors speak about my disease, it's clear that the focus is on the term "Neuroendocrine Tumours" or NET for short. Many websites of advocate foundation organisations and specialist scientific organisations, all still use the term "NET" in their naming. I too am guilty of having a large Facebook site falling into this category. It's little wonder that those with high grade disease can often feel like the forgotten patient group. …
Neuroendocrine Neoplasms – not as rare as you think
UPDATE AS AT 5th OCTOBER 2025 - USA - Prevalence of Neuroendocrine Neoplasms breaches the Orphan Disease threshold for the first time (officially)In this cross-sectional study evaluating 145,477 NEN cases in the US, age-adjusted incidence rates increased 5.2-fold between 1975 and 2021, with an annual percentage change of 3% between 2000 and 2020, and the 20-year limited duration prevalence projected in the US population on January 1, 2021, was 243 896. Survival for all NENs improved, including for patients with distant-stage gastrointestinal and pancreatic NENs. And even this figure is understated as they have excluded some Neuroendocrine Carcinomas from the list…
Neuroendocrine Cancer Clinical Trial – Lutetium-177Lu (Satoreotide)
What is Satoreotide?It's an agonist treatment. i.e. a 'next generation' radiologand for Peptide receptor radionuclide therapy (PRRT) or more specifically the radiopharmaceutical that binds to both activated and unactivated somatostatin receptors which are upregulated on these tumours. There is far higher binding via this mechanism than standard octreotate. The technical name of the radiopharmaceutical is Satoreotide tetraxetan lutetium-177 (author's note, I'm guessing but it could be a variant of Lanreotide).Somatostatin type 2 (SST2) receptor is overexpressed in many around 80% of NETs, some NEC and in certain hard-to-treat cancers such as small cell lung cancer (SCLC) and neuroblastoma, an aggressive,…
Lung cancer diagnosed early because of new tool
I'm a believer in science overtaking mortality figures and there is evidence of that already happening when you read the latest survival figures. But too many are still succumbing to this killer disease. I also believe that artificial intelligence (AI) has the potential to help. Even with cancers of the lung, where known causes are heavily linked to death rates, are decreasing but that is mainly due to preventative measures such as stopping smoking. However, not all cancers of the lung are caused by smoking. Most low-grade Lung NETs is a good example, there are others. I've had a flurry…
A Phase II Clinical Trial of Nivolumab and Temozolomide for Neuroendocrine Neoplasms
What is Nivolumab (Opdivo) Nivolumab is a type of cancer treatment drug called an immunotherapy. It is a treatment for a number of different types of cancer. You might have it as part of a clinical trial for other types of cancer. What is Temozolomide (Temodal) Temozolomide is a type of chemotherapy. It is well known in Neuroendocrine Cancer as the TEM in CAPTEM Trial Summary The purpose of the trial. Treatment options are sometimes limited in patients with metastatic neuroendocrine neoplasms (NEN). The primary endpoint was response rate (using RECIST 1.1). Secondary endpoints included progression-free survival (PFS), overall survival…
RonnyAllan.NET – Summary of January 2023 – Ronny Allan – Living with Neuroendocrine Cancer
SummaryGreat start to 2023 and I thank those who continue to support my social media and this blog. I'm keen to hear any suggestions of the sort of thing you would like me to research and publish.The top 10 most-read posts in January are listed below:Paul Hunter Tribute – Snooker champion and Neuroendocrine Cancer patientThe Masters Snooker competition was held in January 2023 and there was a tremendous spike in views at the time of the final. The Masters Trophy was named the Paul Hunter trophy, and this incidentally generates a vast amount of awareness for Neuroendocrine Cancer as most…
Dustin Diamond
I'm behind the curve on this one after being ahead on celebrities such as Steve Jobs, Aretha Franklin, Wilko Johnson and Olivia Williams. But in my defence, Dustin Diamond was not that well known in UK. I noticed his name mentioned in relation to "Neuroendocrine" in early 2023. I set about searching and it didn't take me long to make a connection. BUT .... this is much more complex than the cases above despite the misinformation which followed in all of these cases due to the use of anatomy to name cancers. This appears to be a common issue, particularly…
Clinical Trial: Phase 1b/3 Targeted Alpha-Emitter PRRT RYZ101 (Ac225)
Update 27th Dec 2023. Bristol Myers Squibb Adds Premier Radiopharmaceutical Platform with Acquisition of RayzeBio This is a significant acquisition and shows the importance and percevied potential of radioligand therapy (RLT) in the commercial pharma world. BMS is a huge company and they paid a huge price for this alpha-emmitter therapy, probably looking forward to exploiting the vast potential in NET, Prostate and other cancer types being considered for treatment using RLTs. Click on the link below to read more Bristol Myers Squibb - Bristol Myers Squibb Adds Premier Radiopharmaceutical Platform with Acquisition of RayzeBio (bms.com) [glossary_dictionary term=""][glossary_thesaurus term=""][glossary_translate term=""]Update…
Clinical Trial: Dostarlimab, anti–PD-1 monoclonal antibody in Neuroendocrine Carcinoma
BackgroundFollowing the Americal Society of Clinical Oncology (ASCO) conference in June 2022 (ASCO is the biggest Oncology event in the world), the media widely featured the results of the Phase 2 clinical trial of the drug Dostarlimab, an anti–PD-1 monoclonal antibody. The media often looks for headline-grabbing stories and this was one of them. One UK TV outlet said they may have found the cure for cancer, which is a reckless statement when you look at the size and boundary of the clinical trial referenced. The detail is, that this was a phase 2 trial for "rectal adenocarcinoma", but specifically…
A Spotlight on Lung Neuroendocrine Neoplasms
WHO Classification of Tumours, 5th Edition, Volume 5: Thoracic Tumours The aim of this spotlight is to provide a summary of the latest information on Lung Neuroendocrine Neoplasms (NEN) including the latest terminology, epidemiology data, and guidelines. This follows the publication of the Thoracic WHO classification 5th edition (2021): terminology and criteria for neuroendocrine neoplasms (Blue Book). This book has been anticipated to see if the panel compiling this follows the lead of the Gastroenteropancreatic Neuroendocrine Neoplasms (GEPNEN) editions issued in 2017 (Endocrine) and 2019 (Digestive systems) by removing the antiquated misnomer term ''Carcinoid" in line with the recommendations made…
Clinical Trial of Tidutamab in Neuroendocrine Cancer (DUET-1)
UPDATE: 13th July 2022Xencor halted this clinical trial due to disappointing results. Click here to read moreXencor, a clinical-stage biopharmaceutical company developing engineered monoclonal antibodies for the treatment of cancer and autoimmune diseases, today announced that initial data from its ongoing Phase 1 dose-escalation study of tidutamab (XmAb®18087), an SSTR2 x CD3 bispecific antibody, in patients with neuroendocrine tumors (NETs) will be presented during the upcoming North American Neuroendocrine Tumor Society’s 2021 Multidisciplinary NET Medical Virtual Symposium (note - it was also presented at NANETS 2020). What are monocloncal antibodies? See here About Tidutamab Monoclonal antibodies are laboratory-produced molecules engineered to…
Clinical Trials – PEN-221 for Neuroendocrine Cancer
What is PEN-221?Tarveda Therapeutics is discovering and developing a new class of potent and selective precision oncology medicines for the treatment of patients with various solid tumor malignancies. Their strategy includes developing their own proprietary Pentarin miniature conjugates to enhance the effectiveness of promising anti-cancer payloads that have struggled without their selective targeting to solid tumors. These medicines are known as 'Pentarins'. PEN-221 is the lead candidate 'Pentarin' aimed at Neuroendocrine Cancer - PEN-221.Somatostatin receptor 2 (SSTR2) is frequently overexpressed on several types of solid tumors, including neuroendocrine tumors and small-cell lung cancer. Peptide agonists of SSTR2 are rapidly internalized…
Ever wonder what caused your Neuroendocrine Cancer?
OPINION. When you're diagnosed, you go through a whole host of emotions. It's not just the initial shock, the disbelief, the anxiety and morbid worry produced by the words "you have cancer", it's other stuff such as anger and denial. With the latter, the denial normally wears off as you finally accept the predicament.In hindsight, the anger is interesting because there can be a mixture of thoughts including "why me", "what could I have done to head this off"; and would you believe I was even angry that my diagnosis was going to affect my performance at work and even…