Neuroendocrine Cancer Clinical Trial – Lutetium-177 OPS-201 (Satoreotide)

Neuroendocrine Cancer Clinical Trial – Lutetium-177 OPS-201 (Satoreotide)

Clinical Trials, Technical NETs
What is Lutetium-177 OPS-201? This is a 'next generation' 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).  It was once named JR11. What's the difference to the current approved therapy?  Conventional PRRT (e.g. Lutathera, Lu177 Dotatate) is based on a somatostatin receptor 'agonist' approach, whereas 177Lu Ops 201 Satoreotide is a receptor 'Antagonist'.  The differences are quite technical but in the most layman terms , the antagonist has the capability of attaching (binding) to more receptors, including those in a…
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Theranostics for Neuroendocrine Cancer –  A Find and Destroy Mission

Theranostics for Neuroendocrine Cancer – A Find and Destroy Mission

Awareness, Clinical Trials, Living with Neuroendocrine Cancer, Technical NETs, Treatment
[caption id="attachment_14426" width="1200"] Courtesy of Pashtoon Kasi MD on Twitter https://twitter.com/pashtoonkasi/status/1078675398601396224[/caption] Theranostics is a joining of the words therapeutics and diagnostics. You may also see it conveyed as 'Theragnostics' and these terms are interchangeable. The basic aim of theranotistics is to find and then destroy the 'bad guys'. With Neuroendocrine Cancer, finding the tumours (the bad guys) can often be a challenge - they can be small and/or difficult to find - they are sometimes expert at camouflage. Moreover, once found, they can then be difficult to treat (destroy), as they can often prove resistant to conventional cancer drugs and many are inoperable due to sheer quantity, spread and positioning. When they are found and identified, it's also really helpful to know from the intelligence gathered, how successful the destroy…
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Somatostatin Receptors

Somatostatin Receptors

Awareness, Technical NETs, 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 and peptides that cause distinct clinical syndromes, including amongst others, carcinoid syndrome.  Somatostatin is…
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PRRT and the NHS England Cancer Drugs Fund

Treatment
[caption id="attachment_3922" align="aligncenter" width="425"] cost cutting vs life cutting?[/caption] As of 4 Nov 15, PRRT was delisted from the NHS England Cancer Drugs Fund. Appeals were made but were rejected, despite the glowing results from the NETTER-1 trial.  Although a replacement system is now in place, PRRT remains barred from routine NHS use. Please 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) as reported by the NET Patient Foundation. 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…
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