Radionuclide generators and cold kits
Bench-top devices that 'milk' a short-lived isotope from a long-lived parent, plus vials of ready-to-label ligand. How most hospitals make PSMA and somatostatin PET tracers without a cyclotron.
Overview
Ge-68/Ga-68 generators (Eckert & Ziegler GalliaPharm, IRE ELiT Galli Eo, ITG) elute Ga-68 for 6-12 months; Mo-99/Tc-99m generators (Curium, Lantheus, GE) underpin SPECT; kits such as Illuccix and Gozellix (Telix), Locametz (Novartis) and NETSPOT (Novartis/AAA) let a radiopharmacy label PSMA-11 or DOTATATE in minutes. Generator supply shortages (Ge-68 in 2018-19) and kit versus unit-dose economics shape tracer access.
How it works
Parent isotope adsorbed on a column decays to the daughter, which is eluted on demand; cold kits contain lyophilised chelator-ligand and buffer for one-step labelling.
- Cyclotron-free access to PET tracers
- Decentralised, low-cost labelling
- Limited activity per elution (few patients per day)
- Generator supply concentrated in a few producers
- Regulatory status of kits varies by country
Dependencies
Open the dependency map →Nothing recorded yet: a foundation, or a gap to fill.
Dependencies are what this technology cannot be delivered without: manufacturing steps, instruments, software, upstream methods. See its full chain on the map.
The standard, decades-old bone scan: a radioactive tracer that sticks to areas of bone rebuilding, so a gamma-camera picture afterwards shows where cancer may have spread to bone, or where a fracture or infection is healing.
Latest papers
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