Page last updated: 2024-12-10

18f-faza

Description Research Excerpts Clinical Trials Roles Classes Pathways Study Profile Bioassays Related Drugs Related Conditions Protein Interactions Research Growth

Description

**18F-FAZA** (**[18F]Fluoro-ethyl-azidomethyl-azido-thymidine**) is a radioactive tracer used in **positron emission tomography (PET)** imaging.

**Importance for Research:**

**1. Alzheimer's Disease Research:**
- 18F-FAZA is a **neuroimaging biomarker** for **amyloid-beta (Aβ)** plaques, which are a hallmark of Alzheimer's disease.
- It binds specifically to Aβ plaques in the brain, allowing researchers to visualize and quantify their presence.
- This helps in:
- Early diagnosis and monitoring of Alzheimer's disease.
- Assessing the effectiveness of potential treatments that target Aβ plaques.
- Understanding the progression of the disease.

**2. Other Neurological Disorders:**
- 18F-FAZA has also shown promise in imaging other neurological disorders associated with Aβ plaques, such as:
- Lewy body dementia
- Cerebral amyloid angiopathy

**3. Advantages of 18F-FAZA:**

- **High sensitivity and specificity** for Aβ plaques.
- **Good brain penetration** and **target engagement**.
- **Long half-life** (approximately 110 minutes), allowing for sufficient imaging time.

**4. Research Applications:**

- Clinical trials to evaluate the efficacy of new Alzheimer's drugs.
- Studies to investigate the relationship between Aβ plaque burden and cognitive decline.
- Longitudinal studies to track the progression of Aβ plaques over time.
- Research on the role of Aβ plaques in other neurological disorders.

**Conclusion:**

18F-FAZA is a valuable tool in Alzheimer's disease research and other neurological disorders. Its ability to visualize and quantify Aβ plaques provides insights into disease pathogenesis, diagnosis, and treatment response.

fluoroazomycin arabinoside: used for hypoxia-specific imaging; structure in first source [Medical Subject Headings (MeSH), National Library of Medicine, extracted Dec-2023]

Cross-References

ID SourceID
PubMed CID10083297
CHEMBL ID589255
SCHEMBL ID10275236
MeSH IDM0482313

Synonyms (17)

Synonym
CHEMBL589255
(18f)fluoro-azomycinarabino-furanoside
fluoroazomycin arabinoside
unii-1qr3uu6p48
1h-imidazole, 1-(5-deoxy-5-fluoro-alpha-d-arabinofuranosyl)-2-nitro-
(18f)-1-alpha-d-(2-deoxy-2-fluoroarabinofuranosyl)-2-nitroimidazole
(18f)fluoroazomycinarabinoside
1qr3uu6p48 ,
220793-03-3
18f-fluoroazomycin arabinoside
faza
fluoroazomycinarabinoside
1h-imidazole, 1-(5-deoxy-5-fluoro-.alpha.-d-arabinofuranosyl)-2-nitro-
SCHEMBL10275236
(2s,3s,4s,5s)-2-(fluoromethyl)-5-(2-nitroimidazol-1-yl)oxolane-3,4-diol
1-(5-fluoro-5-deoxy-alpha-d-arabinofuranosyl)-2-nitroimidazole
Q27252764

Research Excerpts

Pharmacokinetics

ExcerptReferenceRelevance
" While clearance (CL) and blood half-life (t½) were similar for both [18F]FDG and [18F]FAZA for both sampling methods, volume of distribution yielded larger differences, indicative of limitations such as partial volume effects within quantitative image-derived data."( Positron Emission Tomography (PET) and Pharmacokinetics: Classical Blood Sampling Versus Image-Derived Analysis of [18F]FAZA and [18F]FDG in a Murine Tumor Bearing Model.
Brocks, DR; Jans, HS; Kumar, P; Wiebe, LI; Wuest, M; Yang, XH, 2018
)
0.48
" The motivation for using [F]FAZA pharmacokinetic imaging was to compare this profile with histologically confirmed cases of chordoma."( Pharmacokinetic Analysis of [18F]FAZA Dynamic PET Imaging Acquisitions for Highlighting Sacrum Tumor Profiles.
Belly-Poinsignon, A; Champion, L; Madar, O; Mammar, H; Provost, C, 2020
)
0.56

Dosage Studied

ExcerptRelevanceReference
" In small animals, blood sampling after dosing presents technical difficulties, particularly when short time intervals and frequent sampling are required."( Positron Emission Tomography (PET) and Pharmacokinetics: Classical Blood Sampling Versus Image-Derived Analysis of [18F]FAZA and [18F]FDG in a Murine Tumor Bearing Model.
Brocks, DR; Jans, HS; Kumar, P; Wiebe, LI; Wuest, M; Yang, XH, 2018
)
0.48
[information is derived through text-mining from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Bioassays (2)

Assay IDTitleYearJournalArticle
AID462922Partition coefficient, log P by HPLC2010Bioorganic & medicinal chemistry, Mar-15, Volume: 18, Issue:6
Synthesis, radiofluorination, and hypoxia-selective studies of FRAZ: A configurational and positional analogue of the clinical hypoxia marker, [18F]-FAZA.
AID462921Hypoxia radiosensitization activity in human HCT116 cells assessed as sensitizer enhancement ratio at 100 uM after 24 hrs by [60]Co X-ray source based clonogenic survival assay2010Bioorganic & medicinal chemistry, Mar-15, Volume: 18, Issue:6
Synthesis, radiofluorination, and hypoxia-selective studies of FRAZ: A configurational and positional analogue of the clinical hypoxia marker, [18F]-FAZA.
[information is prepared from bioassay data collected from National Library of Medicine (NLM), extracted Dec-2023]

Research

Studies (80)

TimeframeStudies, This Drug (%)All Drugs %
pre-19900 (0.00)18.7374
1990's0 (0.00)18.2507
2000's17 (21.25)29.6817
2010's56 (70.00)24.3611
2020's7 (8.75)2.80
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Study Types

Publication TypeThis drug (%)All Drugs (%)
Trials8 (10.00%)5.53%
Reviews6 (7.50%)6.00%
Case Studies4 (5.00%)4.05%
Observational0 (0.00%)0.25%
Other62 (77.50%)84.16%
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]