Abstract: The present invention relates to an oil-in-water nanoemulsion composition for MRI, comprising: an aqueous phase, representing 70% to 90% by weight of the composition, advantageously 75% to 85% and more advantageously from 78% to 82% a lipid phase comprising an oil, representing 9.5% to 29.5% by weight of the composition, advantageously 14% to 25% and more advantageously 17% to 21%, a surfactant at the interface between the aqueous and lipid phases, the surfactant comprising at least one amphiphilic paramagnetic metal chelate and optionally an amphiphilic lipid; the total content of surfactant by weight relative to the oil being between 4% and 10% and advantageously between 5% and 8%; the total content of surfactant by weight relative to the composition being between 0.35% and 2.95% and advantageously between 0.

Abstract: The present invention relates to a compound of the following general formula (I): Signal-Linker-Peptide (I) in which Signal is a signal entity; Linker, is absent or is a chemical bond, and Peptide is a peptide having a VCAM-targeting peptide and pharmaceutically acceptable salts thereof. The VCAM-targeting peptide may be X10-X11-X12-X13-X14-X15-X16-X17-X18 (SEQ ID No. 4) with X10 chosen from cysteine and methionine; X11 chosen from methionine and cysteine; X12 chosen from lysine, arginine and alanine; X13 chosen from threonine and serine; X14 chosen from aspartic acid and glutamic acid; X15 chosen from threonine and serine; X16 chosen from arginine, alanine and lysine; X17 chosen from leucine, isoleucine and valine; X18 chosen from cysteine and methionine; preferably, the peptide CMKTDTRLC (SEQ ID No. 5).

Abstract: The invention relates to chelate compounds which can be used in MRI, the chelates being intended to be conveyed by lipophilic transporters, such as lipid nanoparticles or liposomes. The invention also relates to compounds comprising, in association, these chelates and these transporters, if appropriate connected via chemical bonding groups, and to their use in diagnostic imaging, it being possible for this association additionally to comprise biological targeting markers, denoted biovectors.

Abstract: The present invention relates to a method for preparing a pharmaceutical formulation of lanthanide chelate in powder form, this powder comprising a mol/mol excess of free chelate of between 0.002 and 0.4%, said method comprising the following successive steps: 1) step 1: mixing the chelate and the lanthanide so as to obtain complexation of the lanthanide by the chelate, the complexation solution obtained comprising, in addition to the chelate-lanthanide complex, an excess amount X1 of free chelate; 2) step 2: preferably measuring X1; 3) step 3: precipitating the complexation solution obtained in step 1) from an organic solvent so as to obtain a powder of chelate-lanthanide complex, the powder containing an excess amount X2 of free chelate; 4) step 4: optionally adjusting X2 so as to obtain: 4.a) X2 is between 0.002 and 0.4%, and more especially between 0.02 and 0.3% mol/mol, very advantageously between 0.025 and 0.25% mol/mol, 4.b) X2 corresponds to between 0.2 and 2 times X1, in particular between 0.

Abstract: The present invention concerns a Ga68 complex of formula FOLATE-(LINKER)i-NOTA-Ga68 in which: 1) FOLATE is a folate compound or a derivative thereof capable of targeting a folate receptor, 2) NOTA is a chelate capable of complexing Ga68 having a NOTA scaffold or derivatives thereof 3) LINKER is a chemical group linking FOLATE and NOTA 4) i is an integer chosen between 0 and 1 wherein NOTA is complexing Ga68

Abstract: The present invention relates to a compound of formula (II) chosen from (IIa) and (IIb) or of formula (VI) chosen from (VIa) and (VIb) of following general formulae: in which: X1, X2, X3, X4 and X5 represent, independently of one another, L-Y in which L represents a C1-C3 alkyl group, preferably (CH2)n with n=1 to 3, Y represents —CONH2, —CO—NR7R8 or —NR8-CO—R8, or an isomer, an enantiomer or a diastereoisomer of these or their mixtures or a pharmaceutically acceptable salt of the compounds of formulae (VIa) and (VIb). It also relates to a complex of these compounds with a paramagnetic metal or a radionuclide and their use in diagnostic methods.

Abstract: The present invention relates to a method for complexation of a chelate with a radionuclide, advantageously gallium, the complexation being carried out advantageously at ambient temperature without heating, by adding the radionuclide to the chelate in a buffer solution, the buffer of this solution comprising between two and five functions for coordination with the radionuclide, each coordination function being independently chosen from a carboxylic acid function and a hydroxyl function, on the condition that the buffer comprises at least one carboxylic acid function and at most two carboxylic acid functions. It also relates to the injectable solution obtained.

Abstract: The present invention relates to the use of a CEST contrast agent in a method of CEST imaging, wherein the contrast agent is a composition comprising an encapsulating system ES encapsulating at least one CEST agent, wherein the at least one CEST agent is constituted of a monomeric chelate of a chelate of q?2 type, or of a multimer of monomeric chelates of q?2 type, and wherein said chelate is free inside the encapsulating system.

Abstract: The present invention relates to a compound of the following general formula (I): Signal-Linker-Peptide (I) in which: -Signal represents a signal entity; -Linker, which may or may not be present, represents a chemical bond, and -Peptide represents a peptide comprising a VCAM-targeting peptide, the VCAM-targeting peptide being chosen from the peptides of formula below and the functional equivalents thereof: a) X1-X2-X3-X4-X5-X6-X7-X8-X9 (1) (SEQ ID No. 1) where X1 is absent or chosen from cysteine and methionine; X2 chosen from asparagine and glutamine; X3 chosen from asparagine and glutamine; X4 chosen from serine and threonine; X5 chosen from lysine, arginine, histidine and ornithine; X6 chosen from serine and threonine; X7 chosen from histidine, arginine and lysine; X8 chosen from threonine and serine; X9 is absent or chosen from cysteine and methionine; preferably, the peptide CNNSKSHTC (SEQ ID No. 2) and the peptide NNSKSHT (SEQ ID No. 3); b) X10-X11-X12-X13-X14-X15-X16-X17-X18 (2) (SEQ ID No.

Abstract: The invention relates to a process for preparing a liquid pharmaceutical formulation containing a complex of macrocyclic chelate with a lanthanide and a mol/mol amount of free macrocyclic chelate of between 0.002% and 0.4%, advantageously between 0.02% and 0.3% and very advantageously between 0.025% and 0.

Abstract: The invention concerns compounds comprising a biological target recognizing part, coupled to a signal part capable of complexing gallium. The invention also concerns methods for obtaining said compounds, screening methods capable of selecting such compounds for chemical synthesis thereof and their diagnostic applications, in particular in PET, PET/IRM, PET CT imaging.

Abstract: The invention relates to a composition comprising acid magnetic particles (p) based on an iron compound, the acid magnetic particles (p) being complexed by one or more gem-bisphosphonate compounds, of formula I: X-L-CH(PO3H2)2 ??(I) in which: L represents an organic group connecting the X group to the gem-bisphosphonate group —CH(PO3H2)2; X represents a chemical group capable of reacting with a biovector; all or some of the X groups of the particles optionally being coupled to a biovector. The invention relates also to a process for the preparation of the compositions and their use, in particular as contrast products for Magnetic Resonance Imaging (MRI).

Abstract: A novel method for preparing nanoparticles for medical imaging, including a metal core, an organic stabilizing layer containing gem-bisphosphonate compounds and at least one hydrophilic biodistribution ligand.

Abstract: The invention relates to a composition comprising acid magnetic particles (p) based on an iron compound, the acid magnetic particles (p) being complexed by one or more gem-bisphosphonate compounds, of formula I: X-L-CH(PO3H2)2??(I) in which: L represents an organic group connecting the X group to the gem-bisphosphonate group —CH(PO3H2)2; X represents a chemical group capable of reacting with a biovector; all or some of the X groups of the particles optionally being coupled to a biovector. The invention relates, also to a process for the preparation of the compositions and their use, in particular as contrast products for Magnetic Resonance Imaging (MRI).

Abstract: The present invention relates to a compound of general formula (I) below: Signal?Linker?Peptide (I) in which Signal represents a signal entity; Linker, which may or may not be present, represents a chemical bond and Peptide represents a peptide comprising an apoptosis-targeting peptide, the apoptosis-targeting peptide being chosen from the peptides having the formula below and the functional equivalents thereof: X1-X2-X3-X4-X5-X6 (1) (SEQ ID No 1) in which X1 and X2 represent, independently of one another, leucine or isoleucine, X3 and X4 represent lysine, X5 represents proline and X6 represents phenylalanine, advantageously the peptide L-I-K-K-P-F (SEQ ID No 11) and the functional equivalents thereof; D-A-H-S-X7-S (2) (SEQ ID No 2) in which X7 represents phenylalanine or leucine; P-G-D-L-X8-X9 (3) (SEQ ID No 3) in which X8 represents serine or valine and X9 represents threonine or arginine; H-G-X10-L-S-X11 (4) (SEQ ID No 4) in which X10 represents aspartic acid or histidine, and X11 represents thre

Abstract: The invention relates to a method of water diffusion imaging in magnetic resonance imaging in an area of diagnostic interest, characterized in that it comprises, in combination, the administration of a contrast product capable of generating a signal specifically in its specific location area, said location area being included in said area of interest, the application of a water diffusion imaging sequence to the whole area of interest, and the reading of the images in the area of interest, the specific signal due to the contrast product significantly and specifically modifying the signal in the specific location area relative to the signal of the whole area of interest.

Abstract: The invention relates to chelate compounds which can be used in MRI, the chelates being intended to be conveyed by lipophilic transporters, such as lipid nanoparticles or liposomes. The invention also relates to compounds comprising, in association, these chelates and these transporters, if appropriate connected via chemical bonding groups, and to their use in diagnostic imaging, it being possible for this association additionally to comprise biological targeting markers, denoted biovectors.

Abstract: The present invention relates to a compound comprising, firstly a component for targeting at least one chemokine receptor and, secondly, a detection component capable of being identified by a medical imaging method.

Abstract: The present invention relates to a compound of formula (II) chosen from (IIa) and (IIb) or of formula (VI) chosen from (VIa) and (VIb) of following general formulae: in which: X1, X2, X3, X4 and X5 represent, independently of one another, L-Y in which L represents a C1-C3 alkyl group, preferably (CH2), with n=1 to 3, Y represents —CONH2, —CO—NR7R8 or —NR7-CO—R8, or an isomer, an enantiomer or a diastereoisomer of these or their mixtures or a pharmaceutically acceptable salt of the compounds of formulae (VIa) and (VIb). It also relates to a complex of these compounds with a paramagnetic metal or a radionuclide and their use in diagnostic methods.

Abstract: A new use in magnetic resonance imaging employing a field greater than 1.5 Tesla, of a porphyrin compound of the following general formula I is provided: in which R0 and R?0 are such that the compound is soluble in a biological medium, and M denotes a paramagnetic metal ion, advantageously Mn3+. The present invention also relates to novel porphyrin compounds.