Tracers / [18F]fluspidine
[18F]fluspidine
Also written as [18F]fluspidine
- Radionuclide
- F-18 t½ 109.77 min
- Modality
- PET
- Production route
- —
- Stage
- first-in-human / first clinical trial
- Syntheses indexed
- 5
What it is
- Compound class
- Spirocyclic piperidine (fluspidine, σ1 receptor ligand)
- Target / mechanism
- σ1 receptor ligand PMID 38399380
- Clinical application
- PET imaging of σ1 receptors in the brain of patients with major depressive disorder and Huntington's disease (pridopidine occupancy study) PMID 38399380
- Theranostic pair
- —
Regulatory status
- FDA
- —
- EMA (centralised)
- —
- Other approvals
- —
- Brand names
- —
Clinical use
- Typical injected activity
- —
- Uptake time
- —
Reported in the literature. Not a dosing recommendation.
Published syntheses
| Module | Cassette | Purification | Yield % | RCP % | Precursor / supplier | Source |
|---|---|---|---|---|---|---|
| TRACERlab FX FN | — | — | — | — | tosylate precursor (R)-19 | 38399380 2024 Pharmaceuticals (Basel) automated syntheses were developed using a TRACERlab FX FN synthesis module — the PET tracers [18F]2, (R)-[18F]2 and (S)-[18F]2 were obtained with high radiochemical yields, high radiochemical purity, high molar activity and short reaction times |
| TRACERlab FX FN | — | — | — | — | tosylate precursor (S)-19 | 38399380 2024 Pharmaceuticals (Basel) automated syntheses were developed using a TRACERlab FX FN synthesis module — the PET tracers [18F]2, (R)-[18F]2 and (S)-[18F]2 were obtained with high radiochemical yields, high radiochemical purity, high molar activity and short reaction times |
| — | — | — | — | — | tosylate (S)-17 | 28315263 2017 Adv Exp Med Biol |
| — | — | — | — | — | tosylate (R)-17 | 28315263 2017 Adv Exp Med Biol |
| — | — | HPLC+SPE | 37±8% | 99.3±0.5% | tosylate precursor | 24291352 2014 Appl Radiat Isot was implemented on a TRACERlab(TM) FX F-N synthesizer — produced within 59±4 min with an overall radiochemical yield of 37±8% |
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Get in touchQuality control Preliminary — inferred from compound class
- Ph. Eur. monograph
- —
- USP monograph
- —
How this set was arrived at. base set per Ph. Eur. general monograph 0125 (rule); organic-phase radiosynthesis assumed from isotope/compound class, no synthesis data confirming it -> GC residual solvents (preliminary); conventional nucleophilic 18F-fluorination assumed from isotope/compound class, no synthesis data confirming K222 use -> Kryptofix test (preliminary)
Tests listed by reference only. Monograph texts are copyrighted and are not reproduced here. How these are derived
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Get in touchNotes
Added from reverse module search (stage 6); 3 article(s) with F-18. Stage set/updated at stage 23 from PMID 38399380: 'In the first clinical trial, (S)-[18F]2 was used to visualize σ1 receptors in the brains of patients with major depressive disorder (MDD).'. | Stage 28: added indication(s) neu-huntington from consolidated missing-rubric review.