Neuroendocrine Cancer – Liver directed therapy

Neuroendocrine Cancer – Liver directed therapy

Treatment
Neuroendocrine Neoplasms (NENs) present complex challenges to diagnosis and treatment. Even in metastatic cases spreading to the liver there are some important differences compared to the more common types of gastrointestinal tumours and pancreatic adenocarcinomas, e.g. their sometimes indolent nature and their ability to oversecrete hormones causing distinct clinical syndromes. Also, the tumours are known to be highly vascular which is a feature where growth inhibition and symptom relief may be achieved by specific 'blocking' agents - this is particularly the case with liver metastases in well differentiated Neuroendocrine Tumours (NETs). Spread to the liver may occur from NETs of the foregut, midgut as well as hindgut. NET metastases are usually multiple and of varying size. In most cases both liver lobes are affected, but widespread (miliary) seeding throughout the…
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All you need to know about Peptide Receptor Radionuclide Therapy (PRRT)

All you need to know about Peptide Receptor Radionuclide Therapy (PRRT)

Clinical Trials, Treatment
Update June 6th 2021. Novartis reports clinically relevant improvement in median overall survival data in final analysis of pivotal NETTER-1 study with targeted radioligand therapy Lutathera. New analysis of the NETTER-1 trial data has been published. For those who just need a quick summary, the quote from Dr Jonothan Strosberg is below. Short PRRT PrimerWhat is Peptide Receptor Radionuclide Therapy (PRRT)?For those who are still not sure what it's all about. This is a non-surgical treatment which is normally administered intravenously. It's based on the use of somatostatin receptors to attract a 'radiopeptide'. The radiopeptide is a combination of a somatostatin analogue and a radioactive material. As we already know, somatostatin analogues (i.e. Lanreotide/Octreotide) are a NET cell targeting drug using somatostatin receptors, so when combined with radioactivity, it binds with…
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Somatostatin Receptors

Somatostatin Receptors

Awareness, Treatment
Don't understand Somatostatin Receptors? Join the club! I got my head around the term 'Somatostatin' and 'Somatostatin Analogues' some time ago but the term 'Somatostatin Receptor' (SSTR) is still a bit of a mystery and it's come to the top of my list of things to study. SSTRs do come up in conversation quite often and I'm fed up of nodding sagely hoping it will eventually become clear! On analysis it looks like a technical subject - and therefore a challenge :-) I've taken a logical approach working from 'Somatostatin' to 'Somatostatin Analogue' before commencing on the 'receptor' bit. It is intentionally brief and (hopefully) simplistic! Somatostatin It's important to understand this hormone and then why your 'butt dart' is generically called a 'Somatostatin Analogue'. Some Neuroendocrine Tumours secrete hormones…
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PRRT and the NHS England Cancer Drugs Fund (now archived information)

Treatment
[caption id="attachment_3922" align="aligncenter" width="425"] cost cutting vs life cutting?[/caption] Please note this post is now historic information - PRRT (Lutathera) was eventually approved for use in UK.  See the following post for the very latest on PRRT worldwide - CLICK HERE I was extremely disappointed to learn of the decision to remove PRRT (Lutetium or Yttrium) from the Cancer Drugs Fund (CDF).  You can read the detail of the decision here: CDF Statement.  PRRT has regularly been described by NET specialists and patients as the "magic bullet" due to its potential to shrink or kill tumours.  This is the second Neuroendocrine Cancer treatment to be withdrawn this year, after the earlier decision on Everolimus (Afinitor) in April . In fact, the recent cuts to the CDF were described in the…
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