| Candidate ID: | R1084 |
| Source ID: | DB06703 |
| Source Type: | approved |
| Compound Type: |
small molecule
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| Compound Name: |
Gadobutrol
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| Synonyms: |
gadolinium(III) 2,2',2''-(10-((2R,3S )-1,3,4-trihydroxybutan-2-yl)-1,4,7,10-tetraazacyclododecane-1,4,7-triyl)triacetate
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| Molecular Formula: |
C18H31GdN4O9
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| SMILES: |
OC[C@H](O)[C@H](CO)[N+]12CC[N+]3(CC([O-])=O)CC[N+]4(CC([O-])=O)CC[N+](CC([O-])=O)(CC1)[Gd-]234
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| Structure: |
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| DrugBank Description: |
Intravenous gadobutrol is a second-generation extracellular non-ionic macrocyclic GBCA (gadolinium-based contrast agent) used in magnetic resonance imaging (MRI) in adults and children older than 2 years of age. It may help visualize and detect vascular abnormalities in the blood brain barrier (BBB) and central nervous system (CNS).
In patients with impaired renal function, gadolinium based contrast agents increase the risk of nephrogenic systemic fibrosis (NSF). A physician should be contacted if symptoms of NSF are encountered, such as dark or red patches on the skin; stiffness in joints; trouble moving, bending or straightening arms, hands, legs or feet; burning, itching, swelling, scaling, hardening and tightening of skin; pain in hip bones or ribs; or muscle weakness.
Common adverse reactions that may be experienced include headache, nausea, feeling hot, abnormal taste, and warmth, burning or pain local to the injection site.
General precautions should be taken in patients who are pregnant or breastfeeding, or who have a history of allergic reaction to contrast media, bronchial asthma or an allergic respiratory disorder.
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| CAS Number: |
770691-21-9
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| Molecular Weight: |
604.72
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| DrugBank Indication: |
For diagnostic use only. Indicated for adults and children age 2 and over for contrast enhancement during cranial and spinal MRI, and for contrast-enhanced magnetic resonance angiography (CE-MRA). Gadobutrol is particularly suited for the detection of very small lesions and for the visualization of tumors that do not readily take up contrast media. It may be a desired agent when the exclusion or demonstration of an additional pathology may influence the choice of therapy or patient management. It may also be suitable for perfusion studies in the diagnosis of stroke, detection of focal cerebral ischemia, and in studies of tumor perfusion.
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| DrugBank Pharmacology: |
Even at low concentrations Gadobutrol can lead to distinct shortening of relaxation times of protons in plasma. At physiological conditions (pH=7, temperature=37°C), and 1.5T, the relaxivity (r1) is 5.2L/(mmol·sec) based on the relaxation times (T1), while the relativity (r2) is 6.1L/(mmol·sec) based on relaxation times (T2).
Magnetic field strength has only slight influence on relaxivities.
Drug concentration and r1 relaxivity may contribute to a T1 shortening effect, which may improve tissue visualization.
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| DrugBank MoA: |
MRI tissue visualization is dependent, in part, on variations in intensity of radiofrequency signals which occur due to differences in proton density, differences of the spin-lattice or longitudinal relaxation times (T1), and differences in the spin-spin or transverse relaxation times (T2).
Gadolinium shortens T1 and T2 relaxation times. Greater signal enhancement is achieved with increased shortening of T1 and T2. The extent to which Gadolinium can shorten T1 and T2 is influenced by concentration in tissue, MRI field strength, and the relative ratio of transverse and longitudinal relaxation times.
The recommended dose produced the greatest sensitivity of T1 shortening effect in T1-weighted magnetic resonance sequences.
In T2-weighted sequences, the large magnetic moment of gadolinium induced local magnetic field inhomogenenities.
At high concentrations used during bolus injections, T2-weighted sequences show a signal decrease.
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| Targets: |
--
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| Inclusion Criteria: |
Indication associated
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