Tracers / [18F]FAPI-74

[18F]FAPI-74

Also written as [18F]FAPI-74; [F-18]FAPI-74; F-18 FAPI-74; FAPI-74
Radionuclide
F-18 t½ 109.77 min
Modality
PET
Production route
Stage
Syntheses indexed
11

What it is

Compound class
Radiolabelled quinoline-based FAP-inhibitor (small molecule; Al-F-18 or cold-kit Ga-68 labelled member of the FAPI-46 family)
Target / mechanism
Fibroblast activation protein (FAP) PMID 32591493
Clinical application
Tumour-stroma imaging (FAP-family applications) PMID 32591493
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

ModuleCassettePurificationYield %RCP %Precursor / supplierSource
AllinOne (AiO)
Trasis
vendor cassetteSPE63.0 ± 9.2%99.8 ± 0.1%FAPI- 74
SOFIE
40272498
2025 Eur J Nucl Med Mol Imaging
The radiosynthesis of [18F]F-FAPI- 74 was performed on an AllinOne module (Trasis, Liège, Belgium) using a FAPI- 74 cassette and reagent kit (Trasis, Liège, Belgium). — The short sequence yielded radioactivity yields (RAY) of 63.0 ± 9.2% (n = 36)
42318157
2026 Oncol Rev
42228299
2026 Int J Clin Oncol
Manual synthesisHPLC+SPE12.3 ± 6.6%
no
>99%FAPI-74 precursor41779297
2026 EJNMMI Res
[18F]F-FAPI-74 radiolabeling was performed according to Naka et al. [25] with minor procedural modifications — [18F]F-FAPI-74 radiolabeling achieved an activity yield of 12.3 ± 6.6% (non-decay corrected, n = 8)
41599688
2026 Pharmaceuticals (Basel)
SPENOTA-FAPI-7441025439
2025 J Am Heart Assoc
AllinOne (AiO)
Trasis
vendor cassetteSPE63.0 ± 9.2%99.8 ± 0.1%FAPI- 74
SOFIE
40272498
2025 Eur J Nucl Med Mol Imaging
The radiosynthesis of [18F]F-FAPI- 74 was performed on an AllinOne module (Trasis, Liège, Belgium) using a FAPI- 74 cassette and reagent kit (Trasis, Liège, Belgium). — The short sequence yielded radioactivity yields (RAY) of 63.0 ± 9.2% (n = 36)
40148277
2025 Nat Commun
39956945
2025 J Cachexia Sarcopenia Muscle
42148857
2026 Clin Nucl Med
41544886
2026 Vet J

Precursor

Common precursor
FAPI-74 PMID 40272498 (DOI 10.1007/s00259-025-07239-6)
Suppliers seen in the literature
SOFIE (Dulles, VA, USA)
Cited suppliers in indexed syntheses
SOFIE
Typical final purification
SPE

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Quality control Preliminary — inferred from compound class

Ph. Eur. monograph
USP monograph
AppearancepHRCP HPLCRCP TLCHPLC UVRadionuclidic (HPGe)Half-lifeActivityEndotoxins (LAL)SterilityFilter integrityMolar activity
How this set was arrived at. base set per Ph. Eur. general monograph 0125 (rule); receptor ligand with a saturable target -> molar activity (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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Notes

Added from reverse module search (stage 6); 9 article(s) with F-18.