EP4429668A1 - Phytoecdysones et/ou dérivés de 20-hydroxyecdysone en combinaison avec un principe actif visant à restaurer l'expression smn pour leur utilisation dans le traitement de l'amyotrophie spinale - Google Patents
Phytoecdysones et/ou dérivés de 20-hydroxyecdysone en combinaison avec un principe actif visant à restaurer l'expression smn pour leur utilisation dans le traitement de l'amyotrophie spinaleInfo
- Publication number
- EP4429668A1 EP4429668A1 EP22813970.5A EP22813970A EP4429668A1 EP 4429668 A1 EP4429668 A1 EP 4429668A1 EP 22813970 A EP22813970 A EP 22813970A EP 4429668 A1 EP4429668 A1 EP 4429668A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- seq
- hydroxyecdysone
- increase
- production
- phytoecdysone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/11—DNA or RNA fragments; Modified forms thereof; Non-coding nucleic acids having a biological activity
- C12N15/113—Non-coding nucleic acids modulating the expression of genes, e.g. antisense oligonucleotides; Antisense DNA or RNA; Triplex- forming oligonucleotides; Catalytic nucleic acids, e.g. ribozymes; Nucleic acids used in co-suppression or gene silencing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/56—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
- A61K31/575—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids substituted in position 17 beta by a chain of three or more carbon atoms, e.g. cholane, cholestane, ergosterol, sitosterol
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/70—Carbohydrates; Sugars; Derivatives thereof
- A61K31/7088—Compounds having three or more nucleosides or nucleotides
- A61K31/7125—Nucleic acids or oligonucleotides having modified internucleoside linkage, i.e. other than 3'-5' phosphodiesters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K36/00—Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
- A61K36/18—Magnoliophyta (angiosperms)
- A61K36/185—Magnoliopsida (dicotyledons)
- A61K36/28—Asteraceae or Compositae (Aster or Sunflower family), e.g. chamomile, feverfew, yarrow or echinacea
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
- A61K38/16—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- A61K38/17—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- A61K38/1703—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates
- A61K38/1709—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates from mammals
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K45/00—Medicinal preparations containing active ingredients not provided for in groups A61K31/00 - A61K41/00
- A61K45/06—Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P21/00—Drugs for disorders of the muscular or neuromuscular system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
- A61P25/28—Drugs for disorders of the nervous system for treating neurodegenerative disorders of the central nervous system, e.g. nootropic agents, cognition enhancers, drugs for treating Alzheimer's disease or other forms of dementia
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N2310/00—Structure or type of the nucleic acid
- C12N2310/10—Type of nucleic acid
- C12N2310/11—Antisense
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N2310/00—Structure or type of the nucleic acid
- C12N2310/30—Chemical structure
- C12N2310/31—Chemical structure of the backbone
- C12N2310/315—Phosphorothioates
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N2310/00—Structure or type of the nucleic acid
- C12N2310/30—Chemical structure
- C12N2310/33—Chemical structure of the base
- C12N2310/334—Modified C
- C12N2310/3341—5-Methylcytosine
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N2310/00—Structure or type of the nucleic acid
- C12N2310/30—Chemical structure
- C12N2310/34—Spatial arrangement of the modifications
- C12N2310/341—Gapmers, i.e. of the type ===---===
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N2320/00—Applications; Uses
- C12N2320/30—Special therapeutic applications
- C12N2320/31—Combination therapy
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N2320/00—Applications; Uses
- C12N2320/30—Special therapeutic applications
- C12N2320/33—Alteration of splicing
Definitions
- the invention relates to the use of phytoecdysones and/or hemisynthetic derivatives of 20-hydroxyecdysone, in combination with an active ingredient aimed at restoring the expression of the SMN protein, for the treatment of spinal muscular atrophy .
- Neuromuscular diseases are characterized by an alteration in the functioning of motor units, made up of motoneurons, neuromuscular junctions and skeletal muscles. Whatever the origin of the disease, nervous as in spinal muscular atrophy or amyotrophic lateral sclerosis, or muscular, all cause an impairment of motor function in patients, ranging from disability to premature death when vital muscles are reached.
- the motor deficit first spreads to the muscles of the lower limbs, then later to the muscles of the upper limbs, preferentially affecting the extensor muscles.
- the gene responsible for SMA was identified in 1995 on chromosome 5 and named SMN for “survival of motor neurons” in Anglo-Saxon terminology (Lefebvre et al., 1995).
- SMN2 presents 5 nucleotide differences with SMN1, including one at the level of exon 7, favoring its excision by splicing in 90% of the mRNAs produced by the SMN2 gene.
- This alternative splicing leads to the production of a truncated and unstable SMNA7 protein.
- SMN2 gene only 10% of the proteins produced by the SMN2 gene are complete and functional (Lefebvre et al., 1997; Vitte et al., 2007).
- a link has been demonstrated between the number of copies of the SMN2 gene, their level of expression and the severity of the disease.
- the first treatment to be authorized in SMA is Spinraza® (nusinersen).
- This treatment received marketing authorization (AMM) in December 2016 in the United States and in June 2017 in Europe.
- AAM marketing authorization
- ASO antisense oligonucleotide
- ASO antisense oligonucleotide
- Sequences of antisense oligonucleotides having the capacity to modify the splicing of the SMN2 gene are given in applications W02007/002390 and WO2018/014041.
- Zolgensma® Onascripogene abeparvovec or AVXS-101
- AAV viral vector
- Evrysdi® (Risdiplam or R07034067) was authorized even more recently (MA in August 2020 in the United States and in March 2021 in Europe). It is a small molecule that acts on the maturation of the SMN2 gene. It is administered daily by mouth or by feeding tube.
- nusinersen must be administered by highly invasive intrathecal injection several times a year. This mode of administration is very difficult and sometimes impossible for patients who have undergone surgery for scoliosis, which excludes nusinersen as a therapeutic option for these patients.
- intrathecal administration allows specific distribution to the central nervous system, which means that not all symptoms can be fully covered.
- onakopogen has an advantage, because it is administered intravenously, and allows systemic distribution.
- Risdiplam for its part, is a less invasive systemic therapy, by daily oral administration. However, because risdiplam targets the splicing machinery, it may also affect other transcriptions, leading to unknown and uncontrollable off-target side effects. Indeed, risdiplam has been described as appearing to have an effect on a regulator of cell division at high concentrations, raising concerns about oncogenic side effects (Ratni et al., 2018).
- Phytoecdysones represent an important family of polyhydroxylated sterols. These molecules are produced by various species of plants (ferns, gymnosperms, angiosperms) and participate in their defense against insect pests. The major phytoecdysone in the plant kingdom is 20-hydroxyecdysone.
- Patent FR 3 021 318 discloses that phytoecdysones, and more particularly 20-hydroxyecdysone (20E), have been the subject of numerous pharmacological studies. These studies have highlighted the antidiabetic and anabolic properties of this molecule. Its stimulating effects on protein synthesis in the muscles are observed in rats in vivo (Syrov et al., 2000; Tôth et al., 2008; Lawrence et al., 2012) and on murine C2C12 myotubes in vitro (Gorelick- Feldman et al., 2008). Some of the effects described above in animal models have been found in clinical studies, which are still few in number. Thus, 20E promotes an increase in muscle mass in young athletes (Simakin et al., 1988).
- the present invention aims to provide a treatment for spinal muscular atrophy, said treatment being improved compared to existing treatments.
- phytoecdysones in particular 20E and semi-synthetic derivatives thereof
- an active ingredient having the ability to to increase the production of functional SMN protein, in mammals suffering from spinal muscular atrophy.
- the use of phytoecdysones and/or of at least one hemi-synthetic derivative of 20-hydroxyecdysone, in combination with a treatment using an active principle having the capacity to increase the production of functional SMN protein improves by synergy of these elements motor and functional performance as well as survival and weight of animals with spinal muscular atrophy (SMA).
- SMA spinal muscular atrophy
- the present invention relates to at least one phytoecdysone and / or at least one semi-synthetic derivative of 20-hydroxyecdysone, and at least one active principle having the ability to increase the production of functional SMN protein, for their use in combination therapy in the treatment of spinal muscular atrophy.
- the invention relates to at least one phytoecdysone and/or at least one hemisynthetic derivative of 20-hydroxyecdysone, and at least one active ingredient having the ability to increase the production of functional SMN protein, for use in combination therapy in the treatment of motor neuron disease, said disease participating in SMA.
- a first active agent is chosen from phytoecdysones or semi-synthetic derivatives of 20- hydroxyecdysone or is a composition comprising at least one phytoecdysones and/or at least one semi-synthetic derivative of 20-hydroxyecdysone, a second active agent being the active principle having the capacity to increase the production of functional SMN protein.
- Combination therapy may comprise a single formulation or multiple formulations.
- the co-administration can be carried out simultaneously or sequentially.
- the co-administration can be effected by the same route of administration or by different routes of administration. It is considered a combination therapy as long as the effects of the two (or more) agents overlap in the subject to achieve additional, additive or synergistic clinical effects.
- the invention also responds to the following characteristics, implemented separately or in each of their technically effective combinations.
- said at least one phytoecdysone and/or said at least one semi-synthetic derivative of 20-hydroxyecdysone, and said at least one active principle having the capacity to increase the production of functional SMN protein are co-administered.
- said at least one phytoecdysone and/or said at least one hemi-synthetic derivative of 20-hydroxyecdysone, and said at least one active principle having the capacity to increase the production of functional SMN protein are co-administered within the same composition.
- said at least one phytoecdysone and/or said at least one hemi-synthetic derivative of 20-hydroxyecdysone are administered orally or systemically to the mammal, and said at least one active principle having the ability to increase production of functional SMN protein is administered to the mammal orally and/or intrathecally and/or intravenously.
- said at least one phytoecdysone and / or said at least one semi-synthetic derivative of 20-hydroxyecdysone and / or the active principle having the ability to increase the production of functional SMN protein is preferably incorporated into an acceptable pharmaceutical formulation which can be administered orally.
- the increase in the production of SMN protein can be obtained by gene therapy or by gene therapy.
- the active principle having the capacity to increase the production of protein SMN aims to provide the SMN1 gene.
- the active ingredient having the capacity to increase the production of SMN protein is either a small molecule which acts on the maturation of the SMN2 gene, or an antisense oligonucleotide (ASO) developed in the aim of increasing the production of functional SMN protein by acting on the splicing (maturation) of the SMN2 gene.
- ASO antisense oligonucleotide
- the ASO modulates the splicing of SMN2 which makes it possible to increase the inclusion of exon 7 in the mRNA of SMN2 and thus makes it possible to increase the number of generated SMN proteins having the acids amines corresponding to exon 7 and therefore corresponding to a functional SMN protein.
- the active principle has the capacity to increase the production of functional SMN protein by gene therapy or by gene therapy.
- the active ingredient has the ability to increase the production of functional SMN protein by supplying the SMN1 gene.
- the active ingredient has the ability to increase the production of functional SMN protein by acting on the maturation of the SMN2 gene.
- the active principle having the capacity to increase the production of functional SMN protein is an antisense oligonucleotide (ASO).
- ASO antisense oligonucleotide
- This ASO preferably has a sequence of 10 to 30 nucleotides, more preferably of 12 to 30 nucleotides, preferentially 12 to 25 nucleotides or even preferentially 15 to 20 nucleotides.
- ASO has a sequence of 18 nucleotides.
- ASO has the ability to induce the inclusion of exon 7 in the sequence of the SMN2 gene.
- the ASO is complementary to at least 50%, preferably at least 60%, preferably at least 70%, more preferably to at least 80%, preferably at least 90%, preferably at least 95%, preferably 98%, preferably 100%, of the sequence of the nucleic acid coding for the pre-mRNA of the human SMN2 gene.
- the ASO is complementary to at least 50%, preferably at least 60%, preferably at least 70%, more preferably to at least 80%, preferably to at least 90%, preferably at least 95%, preferably 98%, preferably 100%, of a sequence belonging to intron 6, to intron 7 or to a part of exon 7 and a part of an intron adjacent to exon 7, nucleic acid encoding the pre-mRNA of the human SMN2 gene.
- exon 7 is included in the mRNA of SMN2, which makes it possible to obtain a functional SMN protein.
- sequence of the nucleic acid coding for the pre-mRNA of the human SMN2 gene is available on Genbank under the reference NG_008728, version NG_008728.1.
- the ASO is a sequence that is at least 50% identical or similar to the sequence SEQ ID NO: 1 given in the sequence listing filed with the present application (5'-TCACTTTCATAATGCTGG-3 '), preferably identical or similar to at least 60%, preferably at least 70%, more preferably to at least 80%, preferably to at least 90% and preferably identical or similar to 100%.
- the sequence SEQ ID NO: 1 is complementary to 18 bases of intron 7 (bases 10 to 27) of the SMN2 gene.
- the ASO has a sequence chosen from the sequences SEQ ID NO: 2, SEQ ID NO: 3, SEQ ID NO: 4, SEQ ID NO: 5, SEQ ID NO: 6, SEQ ID NO: 7, SEQ ID NO: 8, SEQ ID NO: 9, SEQ ID NO: 10, SEQ ID NO: 11, SEQ ID NO: 12, SEQ ID NO: 13, SEQ ID NO: 14, SEQ ID NO: 15, SEQ ID NO: 16, SEQ ID NO: 17, SEQ ID NO: 18, SEQ ID NO: 19, SEQ ID NO: 20, SEQ ID NO: 21, SEQ ID NO : 22, SEQ ID NO: 25, SEQ ID NO: 26, SEQ ID NO: 27, SEQ ID NO: 28, SEQ ID NO: 29.
- SEQ ID NO: 2 SEQ ID NO: 3
- SEQ ID NO: 4 SEQ ID NO: 5
- SEQ ID NO: 6 SEQ ID NO: 7, SEQ ID NO: 8
- SEQ ID NO: 9 SEQ ID NO: 10
- SEQ ID NO: 11 SEQ ID NO: 12, SEQ ID NO: 13, SEQ
- the ASO sequence When the ASO sequence has a percentage identity or similarity of less than 100% with respect to one of the sequences listed above, it may have insertions, deletions and/or substitutions with respect to this sequence of reference.
- the percentage identity between two ASO sequences is determined by comparing the two optimally aligned sequences, through a comparison window.
- the part of the sequence of an ASO in the comparison window can thus include additions or deletions with respect to the reference sequence so as to obtain an optimal alignment between the two sequences.
- the percentage of identity is calculated by determining the number of positions for which a nucleic base is identical in the two compared sequences, then by dividing this number of positions by the total number of positions in the comparison window, the number obtained being multiplied by one hundred.
- the ASO is preferably composed of a phosphodiester skeleton. It may possess various modifications in its skeleton and/or its chemical structure in order to increase its stability and/or its affinity for RNA and/or to present a significant advantage in terms of pharmacokinetics.
- the ASO comprises at least one modification chosen from:
- phosphate group such as a phosphorothioate, or a methylphosphanate, or a phosphoroamidate
- a chemical modification in the 2' position of the ribose such as a 2'0-methyl (2'OMe) or a 2'0-methoxyethyl (2'MOE) or a 2' Fluoro (2'F),
- nucleobases such as pyrimidine methylation of the 5' methylcytosine, 5-methyluridine/ribothymidine or "G-clamp” type, - at least one substantial change in the structure of the sugar, leading to a variety of molecules, such as morpholinos (PMO for “phosphoroamidate morpholino oligomer” in English terminology) or peptide nucleic acids (PNA for “Peptide nucleic acid” in English terminology) Anglo-Saxon) or constrained type oligonucleotides (LNA for "locked nucleic acid” in Anglo-Saxon terminology or cEt for "2'-4'-constrained ethyl” in Anglo-Saxon terminology or tc-DNA for tricyclo-DNA).
- PMO phosphoroamidate morpholino oligomer
- PNA peptide nucleic acids
- LNA constrained type oligonucleotides
- LNA constrained type oligonucleotides
- the ASO is of sequence identical or similar to at least 50% with the sequence SEQ ID NO: 23, preferably identical or similar to at least 60%, preferentially at least 70%, more preferably at least 80%, more preferably at least 90% and preferably the same or similar to 100%.
- the sequence SEQ ID NO: 23 corresponds to the sequence SEQ ID NO: 1 with 2'-O-methoxyethyl on the 2' carbon atom of the deoxyribose for each base, with a phosphorothioate skeleton, and with 5-methyl cytosines at instead of cytosines.
- the phosphothioate skeleton advantageously improves the stability of the ASO
- the 5-methyl cytosines advantageously make it possible to make the ASO less sensitive to nucleases
- the 2'-O-methoxyethyl on the 2' carbon atom of the deoxyribose advantageously allows to reduce the immune response induced by the administration of ASO.
- ASO is administered at a dose of between 0.01 and 10 mg per kilogram in humans. Preferably this dose is administered daily or weekly.
- phytoecdysones and semi-synthetic derivatives of 20-hydroxyecdysone are advantageously purified to pharmaceutical grade.
- a phytoecdysone that can be used according to the invention is, for example, 20-hydroxyecdysone.
- said at least one phytoecdysone is 20-hydroxyecdysone.
- 20-Hydroxyecdysone and its semi-synthetic derivatives are advantageously purified to pharmaceutical grade.
- the 20-hydroxyecdysone used is preferably in the form of a plant extract rich in 20-hydroxyecdysone or of a composition comprising 20-hydroxyecdysone as active agent.
- Plant extracts rich in 20-hydroxyecdysone are, for example, extracts of Stemmacantha carthamoides (also called Leuzea carthamoides), Cyanotis arachnoidea and Cyanotis vaga.
- the extracts obtained are preferably purified to pharmaceutical grade.
- the 20-hydroxyecdysone is in the form of a plant extract or of a plant part, said extract comprising at least 95%, and preferably at least 97%, of 20-hydroxyecdysone.
- Said plant is preferably chosen from plants containing at least 0.5% of 20-hydroxyecdysone by dry weight of said plant.
- Said extract is preferably purified to pharmaceutical grade.
- Said extract is subsequently called BIO101. It remarkably contains between 0 and 0.5%, by dry weight of the extract, of impurities, such as minor compounds, likely to affect the safety, availability or effectiveness of a pharmaceutical application of said extract.
- BIO101 is produced is preferably chosen from Stemmacantha carthamoides, Cyanotis arachnoidea and Cyanotis vaga.
- the semi-synthetic derivatives of 20-hydroxyecdysone are obtained by semi-synthesis and can in particular be obtained in the manner described in European patent application No. EP 15732785.9.
- the phytoecdysones are administered at a dose of between 3 and 15 milligrams per kilogram per day in humans.
- Phytoecdysones are understood here to mean both phytoecdysones in general and 20-hydroxyecdysone (in particular in the form of an extract) and its semisynthetic derivatives.
- the phytoecdysones are administered at a dose of 200 to 1000 mg/day, in one or more doses, in an adult human, and a dose of 5 to 350 mg/day, in one or more doses, in the human child or the infant.
- Phytoecdysone is understood here to mean both phytoecdysone in general and 20-hydroxyecdysone (in particular in the form of an extract) and its semi-synthetic derivatives.
- said at least one semi-synthetic derivative of 20-hydroxyecdysone is chosen from: - a compound of general formula (I):
- R 1 is chosen from: a (Ci-C6)W(Ci-Ce) group; a (Ci-C6)W(Ci-C6)W(Ci-C6) group; a (Ci-C6)W(Ci-Ce)CO2(Ci-Ce) group; a (Ci-Ce)A group, A representing a heterocycle optionally substituted by a group of OH, OMe, (Ci-Ce), N(Ci-Ce), CO2(Ci-Ce) type; a CH2Br group;
- W being a heteroatom chosen from N, O and S, preferably O and even more preferably S;
- (Ci-Ce) means any alkyl group of 1 to 6 carbon atoms, linear or branched, in particular, methyl, ethyl, n-propyl, iso -propyl, n-butyl, iso-butyl, sec-butyl, t-butyl, n-pentyl, n-hexyl.
- it is a methyl, ethyl, iso-propyl or t-butyl group, in particular a methyl or ethyl group, more particularly a methyl group.
- heterocycle preferably means a cycle comprising 5 or 6 atoms including one or two heteroatoms (O, S or N), the remaining atoms being carbon atoms.
- R 1 is chosen from: a (Ci-C6)W(Ci-Ce) group; a (Ci-C6)W(Ci-C6)W(Ci-C6) group; a (Ci-C6)W(Ci-C6)CO2(Ci-C6) group; a (Ci-Ce)A group, A representing a heterocycle optionally substituted by a group of OH, OMe, (Ci-Ce), N(Ci-Ce), CO2(Ci-C 6 ) type;
- W being a heteroatom chosen from N, O and S, preferably O and more preferably S.
- said at least one semi-synthetic derivative of 20-hydroxyecdysone is a compound chosen from the following compounds: No. 1: (2S,3R,5R,10R,13R,14S,17S)-2,3,14-trihydroxy-10,13-dimethyl-17-(2-morpholinoacetyl)-2,3,4,5, 9,11,12,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-6-one, No.
- the present invention relates to a composition
- a composition comprising:
- At least one active principle having the capacity to increase the production of functional SMN protein, for its use in the treatment of a neuromuscular disease in mammals, in particular spinal muscular atrophy.
- composition can meet one or more of the characteristics described above with reference to the use in therapy combination of said at least one phytoecdysone and/or of at least one semi-synthetic derivative of 20-hydroxyecdysone, and of said at least one active principle having the capacity to increase the production of functional SMN protein.
- the composition is incorporated into an acceptable pharmaceutical formulation that can be administered orally or intrathecally or systemically.
- the term "pharmaceutically acceptable” means that which is useful in the preparation of a pharmaceutical composition, which is generally safe, non-toxic and which is acceptable for veterinary as well as pharmaceutical use. human.
- Figure 1 represents the curve of the weight change of SMA mice (Smn A7/A7 ; huSMN2 +/_ ) treated with BIO101 alone or with a mismatch ASO or with an ASO 10-27 alone, or with an ASO combination 10-27 + BIO101, from birth (PO) until death of mice.
- P corresponds to the number of days after birth (post natal);
- Figure 2 is a Kaplan-Meier representation of the survival curves of SMA mice (Smn A7/A7 ; huSMN2 +/_ ) treated with BIO101 alone or with a mismatch ASO or with an ASO 10-27 alone, or with an ASO 10-27 + BIO101 combination, from birth (PO);
- figure 3 represents the motor performances (movement capacities) evaluated by the open field test of the SMA mice (Smn A7/A7 ; huSMN2 +/_ ) treated with BIO101 alone or with a mismatch ASO or with an ASO 10-27 alone, or with an ASO 10-27 + BIO101 combination, from birth (PO);
- figure 4 represents the motor performance (muscle fatigability) evaluated by the grip test of SMA mice (Smn A7/A7 ; huSMN2 +/_ ) treated with BIO101 alone or with an ASO mismatch or with an ASO 10-27 alone, or with an ASO 10-27 + BIO101 combination, from birth (PO).
- the antisense oligonucleotide (ASO) of sequence SEQ ID NO: 23 (5′-TCACTTTCATAATGCTGG-3′), reference ISIS 396443, also known as ISIS-SMNRx, and called ASO in the remainder of the description 10-27, complementary to 18 bases (bases 10-27) of intron 7 of the SMN2 gene (targeting a site in intron 7, called ISS-N1, which represses inclusion of exon 7 of the Pre-messenger RNA (pre-mRNA) of the SMN2 gene) having 2'-0-methoxyethyl modified nucleotides on the 2' deoxyribose carbon atom for each base, with a phosphorothioate backbone and 5-methyl cytosines and the ASO control (noted mismatch) of sequence SEQ ID NO: 24 (5'-TTAGTTTAATCACGCTCG-3') (Singh et al.
- oligonucleotides are re-suspended at a concentration of 8 ⁇ g/ ⁇ L in 0.9% NaCl and stored at -20°C.
- Newborn SMA mice receive a single dose of ASO 10-27 or ASO mismatch of 8 pg on postnatal day 1 (PO) by unilateral intracerebroventricular injection using a Hamilton syringe and a 32G needle.
- the injection site is located 1 mm from the sagittal suture, between bregma and lambda, landmarks visible through the skin at PO.
- the needle is positioned perpendicular to the injection site on the surface of the skin and inserted approximately 3mm deep to reach the lateral ventricle.
- the complementary treatment BIO101 complexed with cyclodextrin is administered daily to young mice from the first postnatal day (PO) orally at a dose of 50 mg/kg using a pipette.
- mice resulting from these crosses having the genotype “FVB/NRj-Smn A7/A7 huSMN2 7+ 2 copies” are described as “SMA” (Hsieh et al., 2000).
- SMA mice were treated either with BIO101 alone or a mismatch ASO or ASO 10-27 alone, or with a combined ASO 10-27 + BIO101 treatment from PO. Survival ( Figure 1) and weight ( Figure 2) of the mice were analyzed daily.
- the average lifespan of the pups (FIG. 1) treated with BIO101 alone (11 days) is substantially identical to that of the pups treated with the ASO mismatch (13 days).
- treatment with ASO 10-27 alone at a dose of 8 pg significantly increases the average lifespan of SMA pups, with a median survival of 18 days (improvement of 38 % animal survival), versus a median survival of 13 days in the ASO mismatch control group.
- the BIO101 treatment is administered in combination with ASO 10-27, the median survival increases to 22.5 days, i.e. a 73% improvement in animal survival.
- the weight of the pups (FIG. 2) treated with BIO101 alone is comparable to that of the pups treated with ASO mismatch throughout their life.
- the device used for the open-field test consists of a plastic box measuring 28 x 28 x 5 cm with a grid of the field divided into 16 squares measuring 7 cm x 7 cm.
- the mice were tested individually and the evaluation device was washed after each session. Each mouse initially placed in the center of the field was allowed to move freely for 5 minutes with tail pinch stimulation every 15 seconds. Behavioral measurements are recorded by the experimenter during these 5 minutes and the total number of cross tiles is recorded.
- the BIO101 treatment whether administered alone or in combination with ASO 10-27, accelerates the acquisition of walking with a tendency to increase the movement of the mice at P15 (1 10 ⁇ 18 squares i.e. +58% with BIO101 treatment alone, and 100 ⁇ 19 squares i.e. +44% with ASO 10-27 + BIO101 treatment) compared to the mice treated with ASO 10-27 alone (70 ⁇ 20 squares).
- mice's forepaws were tested. The mice are suspended by their forepaws from a thin metal rod suspended horizontally in the air. The time spent hanging on is recorded. Each mouse was subjected to five successive attempts with a rest period of one minute between two tests. Only the best trial is kept for the evaluation of muscle functions.
- the fatigue resistance of the young mice treated with ASO 10-27 alone is not improved compared to that of the young mice treated with the ASO mismatch.
- the resistance to fatigue of young mice treated with BIO101 alone is improved by 19.3%.
- the resistance to fatigue of the pups treated with ASO 10-27 alone and with BIO 101 alone are both higher (+7.7%) than that of the pups treated with the ASO mismatch.
- a synergy operates between BIO101 and ASO 10-27 during the combined treatment so that the resistance to fatigue of the treated SMA animals increases by 26.3% at P7 and by 21.2% at P15. .
- this combined therapy shows significant beneficial effects in a mouse model of SMA, in particular at the level of the weight of the animals, and even more importantly, at the level of the physical performance of these animals, whether it is whether the animal's ability to move or its resistance to fatigue.
- Such ASOs are for example the ASOs of a sequence chosen from: SEQ ID NO: 1, SEQ ID NO: 2, SEQ ID NO: 3, SEQ ID NO: 4, SEQ ID NO: 5, SEQ ID NO: 6, SEQ ID NO: 7, SEQ ID NO: 8, SEQ ID NO: 9, SEQ ID NO: 10, SEQ ID NO: 11, SEQ ID NO: 12, SEQ ID NO: 13, SEQ ID NO: 14, SEQ ID NO: 15, SEQ ID NO: 16, SEQ ID NO: 17, SEQ ID NO: 18, SEQ ID NO: 19, SEQ ID NO: 20, SEQ ID NO: 21, SEQ ID NO: 22, SEQ ID NO: 25, SEQ ID NO: 26, SEQ ID NO: 27, SEQ ID NO: 28, SEQ ID NO: 29. [00102] These sequences are given in particular in table 1 below:
- SMN2 splicing modifiers improve motor function and longevity in mice with spinal muscular atrophy. Science, 345, 688-693.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Pharmacology & Pharmacy (AREA)
- Public Health (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Medicinal Chemistry (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Genetics & Genomics (AREA)
- Biomedical Technology (AREA)
- Organic Chemistry (AREA)
- Epidemiology (AREA)
- Zoology (AREA)
- Biotechnology (AREA)
- Molecular Biology (AREA)
- Natural Medicines & Medicinal Plants (AREA)
- Wood Science & Technology (AREA)
- General Engineering & Computer Science (AREA)
- Neurology (AREA)
- Microbiology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Physical Education & Sports Medicine (AREA)
- Plant Pathology (AREA)
- Biophysics (AREA)
- Neurosurgery (AREA)
- Immunology (AREA)
- Mycology (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Gastroenterology & Hepatology (AREA)
- Alternative & Traditional Medicine (AREA)
- Marine Sciences & Fisheries (AREA)
- Botany (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2111920A FR3128873B1 (fr) | 2021-11-10 | 2021-11-10 | Phytoecdysones et/ou dérivés de 20-hydroxyecdysone en combinaison avec un principe actif visant à restaurer l’expression SMN pour leur utilisation dans le traitement de l’amyotrophie spinale |
| PCT/EP2022/080839 WO2023083718A1 (fr) | 2021-11-10 | 2022-11-04 | Phytoecdysones et/ou dérivés de 20-hydroxyecdysone en combinaison avec un principe actif visant à restaurer l'expression smn pour leur utilisation dans le traitement de l'amyotrophie spinale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4429668A1 true EP4429668A1 (fr) | 2024-09-18 |
Family
ID=80225318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22813970.5A Pending EP4429668A1 (fr) | 2021-11-10 | 2022-11-04 | Phytoecdysones et/ou dérivés de 20-hydroxyecdysone en combinaison avec un principe actif visant à restaurer l'expression smn pour leur utilisation dans le traitement de l'amyotrophie spinale |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20250207127A1 (fr) |
| EP (1) | EP4429668A1 (fr) |
| JP (1) | JP2024542447A (fr) |
| CA (1) | CA3237013A1 (fr) |
| FR (1) | FR3128873B1 (fr) |
| WO (1) | WO2023083718A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118045206B (zh) * | 2024-04-12 | 2024-07-05 | 四川至善唯新生物科技有限公司 | 一种治疗脊髓型肌肉萎缩的药物组合物及其用途 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3470072A1 (fr) | 2005-06-23 | 2019-04-17 | Biogen MA Inc. | Compositions et procédés pour modulation de l'épissage du smn2 |
| FR3021318B1 (fr) | 2014-05-20 | 2017-04-28 | Inst Biophytis | Produits derives de la 20-hydroxyecdysone et leur utilisation dans la preparation de medicaments |
| EP3484524B1 (fr) | 2016-07-15 | 2022-11-09 | Ionis Pharmaceuticals, Inc. | Composés et procédés de modulation de smn2 |
| FR3093640B1 (fr) | 2019-03-15 | 2021-10-01 | Biophytis | Phytoecdysones et leurs dérivés pour leur utilisation dans le traitement de maladies neuromusculaires |
-
2021
- 2021-11-10 FR FR2111920A patent/FR3128873B1/fr active Active
-
2022
- 2022-11-04 WO PCT/EP2022/080839 patent/WO2023083718A1/fr not_active Ceased
- 2022-11-04 CA CA3237013A patent/CA3237013A1/fr active Pending
- 2022-11-04 JP JP2024528525A patent/JP2024542447A/ja active Pending
- 2022-11-04 EP EP22813970.5A patent/EP4429668A1/fr active Pending
- 2022-11-04 US US18/708,830 patent/US20250207127A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR3128873B1 (fr) | 2026-01-16 |
| CA3237013A1 (fr) | 2023-05-19 |
| FR3128873A1 (fr) | 2023-05-12 |
| JP2024542447A (ja) | 2024-11-15 |
| WO2023083718A1 (fr) | 2023-05-19 |
| US20250207127A1 (en) | 2025-06-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101965868B1 (ko) | 대상에게서 smn2 스플라이싱을 조정하기 위한 조성물 및 방법 | |
| ES2914775T3 (es) | Medios y métodos para contrarresta trastornos del músculo | |
| EP2892617B1 (fr) | Polynucléotides antisens destinés à induire un saut d'exon et méthodes de traitement de dystrophies | |
| WO2019067981A1 (fr) | Polythérapies pour traiter une dystrophie musculaire | |
| KR20190025821A (ko) | 인간 lmna를 표적화하는 올리고뉴클레오타이드 유사체 | |
| WO2019067975A1 (fr) | Polythérapies pour traiter une dystrophie musculaire | |
| WO2006021724A2 (fr) | Vecteur viral adeno-associe pour realiser du saut d'exons dans un gene codant une proteine a domaines dispensables | |
| US20200254002A1 (en) | Combination therapies for treating muscular dystrophy | |
| US10933081B2 (en) | Myostatin iRNA compositions and methods of use thereof | |
| US8648053B2 (en) | Antisense oligonucleotides that target a cryptic splice site in Ush1c as a therapeutic for Usher syndrome | |
| EP4429668A1 (fr) | Phytoecdysones et/ou dérivés de 20-hydroxyecdysone en combinaison avec un principe actif visant à restaurer l'expression smn pour leur utilisation dans le traitement de l'amyotrophie spinale | |
| US20210198629A1 (en) | Compositions and methods for increasing beiging of white adipose tissue | |
| JP2007530057A (ja) | Vegf転写物の安定性を調節するための治療的分子 | |
| CN107709560A (zh) | 治疗方法 | |
| US20160340680A1 (en) | Modulation of kcnh2 isoform expression by oligonucleotides as a therapeutic approach for long qt syndrome | |
| US20250144129A1 (en) | Pharmaceutical compositions for preventing or treating liver diseases with fibrosis | |
| CN121622725A (zh) | 一种环状rna用于制备核酸药物的应用 | |
| WO2016118118A1 (fr) | Modulation de l'expression de l'isoforme kcnh2 par des oligonucléotides à titre d'approche thérapeutique pour le syndrome du qt long |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20240521 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| 111Z | Information provided on other rights and legal means of execution |
Free format text: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR Effective date: 20250808 |