111In-DTPA-D-Phe1 - Ronny Allan - Living with Neuroendocrine Cancer

Tag: 111In-DTPA-D-Phe1

Also known as Octreotide scintigraphy which uses 111In-labelled octreotide which is a somatostatin analogue; it is also known as an Octreoscan, a brand name for 111In-labelled pentetreotide; pentetreotide is a DTPA-conjugated form of octreotide, originally manufactured by Mallinckrodt Nuclear Medicine LLC, which now forms part of Curium. Other synonyms include Octreoscan, Octreotide Scan.

The radiotracer is characterised by a high affinity of bond with the somatostatin receptor 2 (SST2). It penetrates inside the cell by endocytosis, first held by lysosomes and then transferred to the nucleus. It is particularly useful for assessment of neuroendocrine tumours, and the Krenning Score is used to grade these, most commonly for peptide receptor radionuclide therapy (PRRT) planning. See my article on scans – click here

30Aug 2018 by Ronny Allan 2 Comments

Detectnet™ (64Cu-DOTATATE) – an expansion of the Somatostatin Receptor PET Imaging for Neuroendocrine Cancer

Clinical Trials and Research, Living with Neuroendocrine Cancer, Treatment

Edit 21st January 2021. The imaging time window of 64Cu-DOTATATE positron emission tomography/computed tomography (PET/CT) for patients with neuroendocrine neoplasms can be expanded from one hour to three hours post-injection, according to new research published in the January 2021 issue of The Journal of Nuclear Medicine. Read more hereEdit 4th September 2020. 64Cu-dotatate now named Detectnet™ is approved for use by US FDA. Majority read revealed Detectnet had over 98% accuracy, 100% sensitivity, and over 96% specificity to confirm or exclude presence of disease. Read more here. Edit 14th July 2020. Expanded Access Program via clinical trial now recruiting - see below. The objective of this trial is to provide patients with confirmed or suspicion of NET access to Copper Cu 64 Dotatate for the detection, localization, and monitoring of SSTR expressing NETs.Edit…

05Nov 2016 by Ronny Allan 8 Comments

Neuroendocrine Cancer – If you can see it, you can detect it!

Living with Neuroendocrine Cancer, Survivorship

Content in my review queue (line). Background Scanning is a key diagnostic support and surveillance tool for any cancer. Even though you have elevated bloods or urine (....or not), a picture of your insides is really like a thousand words.... and each picture has a story behind it. Scanning can be a game changer in the hunt for tumours and although scans do not normally confirm the cancer type and grade, they certainly help with that piece of detective work and are key in the staging of the cancer. When I read stories of people in a difficult diagnosis, I always find myself saying 'a scan might resolve this' and I always suggest people should try to get one. Even in the case of a story about late diagnosis or a misdiagnosis, I…