CA2546189C - Inhibitors of the mutant form of kit - Google Patents
Inhibitors of the mutant form of kit Download PDFInfo
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- CA2546189C CA2546189C CA2546189A CA2546189A CA2546189C CA 2546189 C CA2546189 C CA 2546189C CA 2546189 A CA2546189 A CA 2546189A CA 2546189 A CA2546189 A CA 2546189A CA 2546189 C CA2546189 C CA 2546189C
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- kit
- del
- mutant form
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- 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
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/55—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having seven-membered rings, e.g. azelastine, pentylenetetrazole
- A61K31/553—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having seven-membered rings, e.g. azelastine, pentylenetetrazole having at least one nitrogen and one oxygen as ring hetero atoms, e.g. loxapine, staurosporine
-
- 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
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
- A61K31/50—Pyridazines; Hydrogenated pyridazines
- A61K31/502—Pyridazines; Hydrogenated pyridazines ortho- or peri-condensed with carbocyclic ring systems, e.g. cinnoline, phthalazine
-
- 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
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
- A61K31/505—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
- A61K31/506—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim not condensed and containing further heterocyclic rings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P3/00—Drugs for disorders of the metabolism
- A61P3/04—Anorexiants; Antiobesity agents
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
- A61P35/02—Antineoplastic agents specific for leukemia
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2800/00—Detection or diagnosis of diseases
- G01N2800/44—Multiple drug resistance
Abstract
The present invention relates to the treatment of KIT dependent diseases that are characterized by a mutant form of KIT whereby the mutant KIT is identified and an appropriate inhibitor of the mutant KIT selected form midostaurin, vatalanib and compound A is administered.
Description
Inhibitors of the mutant form of KIT
The present invention relates to the treatment of KIT dependent diseases that are characterized by a mutant form of KIT whereby the mutant KIT is identified and an appropriate inhibitor of the mutant KIT is administered.
The c-kit gene encodes a receptor protein tyrosine kinase, which is herein referred to as KIT, but which is also known as mast/stem cell growth factor receptor. The amino acid sequence of KIT and the nucleotide sequence of the c-kit gene are known. See Swiss Prot.: P10721. Upon binding its ligand, stem cell factor, KIT forms a dimer that is autophosphorylated and activates signaling cascades that lead to cell growth.
Mutations that lead to an activated form of KIT, especially forms that are activated independently of its ligand, are known and are believed to play a role in certain proliferative diseases, such as mast cell diseases, like mastocytosis, particularly systemic mastocytosis, acute myelogenous leukemia, gastrointestinal stromal tumors, sinonasal NK/T-cell lymphoma, seminomas and dysgerminomas.
Imatinib, which is marketed as its mesylate salt under the brandname GLIVEC or GLEEVEC, is known to inhibit wild type KIT and certain KIT mutations e.g.
those in exons commonly found in gastrointestinal stromal tumors (GIST). However, it is also inactive or significantly less active against certain other mutant forms of KIT, for example the D816V
mutation commonly found in systemic mastocytosis. The present invention is based upon research that correlates the treatment of a disease characterized by a mutant form of KIT
with an appropriate alternative pharmaceutical therapy based on the alternative's ability to inhibit the mutant KIT.
Thus, the present invention relates to a method of treating a KIT dependent disease in a patient, which comprises (a) identifying the mutant form of KIT associated with the KIT dependent disease;
and (b) administering to the patient an effective mutant KIT-inhibiting amount of an inhibitor selected from the group consisting of midostaurin, vatalanib and compound A.
KIT dependent diseases are generally proliferative diseases that are characterized by excessive KIT kinase activity due to an activating mutation in KIT. Such activating mutations are known in the art and are identified by techniques known in the art.
KIT dependent diseases include diseases characterized by the following known KIT
mutations: D816F, D816H, D816N, D816Y, D816V, K642E, Y823D, Del 550-558, Del 561, N822K, V654A, N822H, Del 550-558 + V654A, Del 557-561 + V654A, In5503AY, V560G, 558NP, Del 557-558, Del W559-560, F522C, Del 579, R634W; K642E, T801 1, C809G, D820Y, N822K, N822H, Y823D, Y823C and T6701.
In an important embodiment of the present invention, the KIT dependent disease is resistant to treatment with imatinib. A KIT dependent disease that is resistant to imatinib is generally a KIT dependent disease as described above wherein imatinib, administered at a dose of 400-1000 mg/day, does not provide sufficient inhibition of the mutant KIT to effect a significant therapeutic benefit. Generally, mutant KIT that is resistant to imatinib has an in vitro IC50 of the mutant KIT greater than about 3 micromolar. Imatinib resistant KIT
mutations include D816F, D816H, D816N, D816Y, D816V, T6701 and mutant forms that include V654A.
The selection of a compound that inhibits the mutant form of KIT is based on testing the compound or a number of compounds for their ability to inhibit the mutant KIT. Such testing is carried out by standard inhibition assays that are known in the art or within the skill of the artisan.
The KIT inhibitors utilized in accordance with the present method include midostaurin, vatalanib and compound A. Midostaurin (US5;093,330) and vatalanib (WO
98/35958) are known in the art. Compound A is a compound of the formula Compound A ~
N
O ~ I
N \ N \ F
I H F
N / F
N
And may be produced according to WO 04/005281.
Appropriate dosages of midostaurin, vatanalib and compound A are determined by routine methods.
An appropriate dose of midostaurin is administered, e.g., once, twice or three times a day, for a total dose of 25 - 300 preferably 50-300 more preferably 50 -100 most preferably 100-300 mg daily, e.g., two or three times a day, for a total dose of 150-250 mg, preferably 225 mg daily.
An appropriate daily dose of vatanalib is an amount in the range from 300-4000 mg, e.g., in the range from 300-2000 mg/day or 300-1500 mg/day, in particular, 300, 500, 750, 1000, 1250, 1500 or 2000 mg/day, particularly 1250 mg/day.
The daily dose of compound A for a 70 kg/person is from approximately 0.05-5 g, preferably from approximately 0.25-1.5 g.
EXAMPLES
The human KIT gene encoding as 544-976 was cloned into the baculovirus donor plasmid pFB-GST-01. This coding sequence was excised using restriction endonucleases Bam H1 and EcoRl and ligated to a Bac-to-Bac donor vector pFB-GEX-P1 with compatible ends. Subsequently the desired mutations were brought into the KIT gene by methods know to a person skilled in the art. Due to a frame shift within the original plasmid that was used to generate the mutant coding sequences, the mutated plasmid inserts were excised and inserted into the Bac-to-Bac donor vector pFB-GST-01 using the restriction enzymes BamH1-EcoR1 for each mutant shown in Figure 1. Automated sequencing confirmed the correct sequence to be present for each mutant plasmid.
Bacrnid DNA was generated from 10 colonies each of DH1 OBac cells transformed with pFB-GOI-KIT-mutant plasmid clones as described in materials and methods and these transfected into Sf9 cells. The transfected cells were pelleted and the resultant recombinant baculovirus present in the supernatant medium amplified. Western blotting was applied to the lysed cell pellets to confirm the expression of the GST-c-KIT fusion protein by the viral clones using anti-KIT and anti-GST antibodies for immonudetection.
The present invention relates to the treatment of KIT dependent diseases that are characterized by a mutant form of KIT whereby the mutant KIT is identified and an appropriate inhibitor of the mutant KIT is administered.
The c-kit gene encodes a receptor protein tyrosine kinase, which is herein referred to as KIT, but which is also known as mast/stem cell growth factor receptor. The amino acid sequence of KIT and the nucleotide sequence of the c-kit gene are known. See Swiss Prot.: P10721. Upon binding its ligand, stem cell factor, KIT forms a dimer that is autophosphorylated and activates signaling cascades that lead to cell growth.
Mutations that lead to an activated form of KIT, especially forms that are activated independently of its ligand, are known and are believed to play a role in certain proliferative diseases, such as mast cell diseases, like mastocytosis, particularly systemic mastocytosis, acute myelogenous leukemia, gastrointestinal stromal tumors, sinonasal NK/T-cell lymphoma, seminomas and dysgerminomas.
Imatinib, which is marketed as its mesylate salt under the brandname GLIVEC or GLEEVEC, is known to inhibit wild type KIT and certain KIT mutations e.g.
those in exons commonly found in gastrointestinal stromal tumors (GIST). However, it is also inactive or significantly less active against certain other mutant forms of KIT, for example the D816V
mutation commonly found in systemic mastocytosis. The present invention is based upon research that correlates the treatment of a disease characterized by a mutant form of KIT
with an appropriate alternative pharmaceutical therapy based on the alternative's ability to inhibit the mutant KIT.
Thus, the present invention relates to a method of treating a KIT dependent disease in a patient, which comprises (a) identifying the mutant form of KIT associated with the KIT dependent disease;
and (b) administering to the patient an effective mutant KIT-inhibiting amount of an inhibitor selected from the group consisting of midostaurin, vatalanib and compound A.
KIT dependent diseases are generally proliferative diseases that are characterized by excessive KIT kinase activity due to an activating mutation in KIT. Such activating mutations are known in the art and are identified by techniques known in the art.
KIT dependent diseases include diseases characterized by the following known KIT
mutations: D816F, D816H, D816N, D816Y, D816V, K642E, Y823D, Del 550-558, Del 561, N822K, V654A, N822H, Del 550-558 + V654A, Del 557-561 + V654A, In5503AY, V560G, 558NP, Del 557-558, Del W559-560, F522C, Del 579, R634W; K642E, T801 1, C809G, D820Y, N822K, N822H, Y823D, Y823C and T6701.
In an important embodiment of the present invention, the KIT dependent disease is resistant to treatment with imatinib. A KIT dependent disease that is resistant to imatinib is generally a KIT dependent disease as described above wherein imatinib, administered at a dose of 400-1000 mg/day, does not provide sufficient inhibition of the mutant KIT to effect a significant therapeutic benefit. Generally, mutant KIT that is resistant to imatinib has an in vitro IC50 of the mutant KIT greater than about 3 micromolar. Imatinib resistant KIT
mutations include D816F, D816H, D816N, D816Y, D816V, T6701 and mutant forms that include V654A.
The selection of a compound that inhibits the mutant form of KIT is based on testing the compound or a number of compounds for their ability to inhibit the mutant KIT. Such testing is carried out by standard inhibition assays that are known in the art or within the skill of the artisan.
The KIT inhibitors utilized in accordance with the present method include midostaurin, vatalanib and compound A. Midostaurin (US5;093,330) and vatalanib (WO
98/35958) are known in the art. Compound A is a compound of the formula Compound A ~
N
O ~ I
N \ N \ F
I H F
N / F
N
And may be produced according to WO 04/005281.
Appropriate dosages of midostaurin, vatanalib and compound A are determined by routine methods.
An appropriate dose of midostaurin is administered, e.g., once, twice or three times a day, for a total dose of 25 - 300 preferably 50-300 more preferably 50 -100 most preferably 100-300 mg daily, e.g., two or three times a day, for a total dose of 150-250 mg, preferably 225 mg daily.
An appropriate daily dose of vatanalib is an amount in the range from 300-4000 mg, e.g., in the range from 300-2000 mg/day or 300-1500 mg/day, in particular, 300, 500, 750, 1000, 1250, 1500 or 2000 mg/day, particularly 1250 mg/day.
The daily dose of compound A for a 70 kg/person is from approximately 0.05-5 g, preferably from approximately 0.25-1.5 g.
EXAMPLES
The human KIT gene encoding as 544-976 was cloned into the baculovirus donor plasmid pFB-GST-01. This coding sequence was excised using restriction endonucleases Bam H1 and EcoRl and ligated to a Bac-to-Bac donor vector pFB-GEX-P1 with compatible ends. Subsequently the desired mutations were brought into the KIT gene by methods know to a person skilled in the art. Due to a frame shift within the original plasmid that was used to generate the mutant coding sequences, the mutated plasmid inserts were excised and inserted into the Bac-to-Bac donor vector pFB-GST-01 using the restriction enzymes BamH1-EcoR1 for each mutant shown in Figure 1. Automated sequencing confirmed the correct sequence to be present for each mutant plasmid.
Bacrnid DNA was generated from 10 colonies each of DH1 OBac cells transformed with pFB-GOI-KIT-mutant plasmid clones as described in materials and methods and these transfected into Sf9 cells. The transfected cells were pelleted and the resultant recombinant baculovirus present in the supernatant medium amplified. Western blotting was applied to the lysed cell pellets to confirm the expression of the GST-c-KIT fusion protein by the viral clones using anti-KIT and anti-GST antibodies for immonudetection.
Vatalanib Compound A
Kit Mutation ICso (LM) (avg) ICso ( M) (avg) D816F >10 >10 D816H >10 >10 D816N >10 <10 D816Y >10 >10 D816V >10 >10 K642E <1 <10 Y823D <1 <1 Del 550-558 <1 <2 Del 557-561 <1 <2 N822K <2 <10 V654A >10 >10 N822H <2 <10 Del 550-558 + V654A <10 <10 Del 557-561 + V654A >10 >10 Midostaurln average N of HIS preparation IC50 M SEM values HT-KIT-TA23 wt 1.7 0.15 2 HT-KIT TA23 -D820G 0.084 0.05 2 HT-KIT TA23 -T6701 0.89 0.21 2 average No of GST preparation IC50 pM SEM values GST-KIT wt 1.8 0.26 10 GST-KIT Del 557-561 0.32 0.042 3 GST-KIT Del 550-558 0.53 0.057 3 GST-KIT Del 550-558+ V654A 0.27 0.079 5 GST-KIT Del 557-561 + V654A 0.34 0.11 5 GST-KIT V654A 0.46 0.16 5 GST-KIT K642E 0.64 0.036 4 CST-KIT R634W 0.33 0.13 2 GST-KIT T6701 + Del 550-558 0.11 0.05 2 CST-KIT D816P 0.41 0.055 5 GST-KIT D816H 0.35 0.078 5 GST-KIT D816N 0.74 0.25 5 GST-KIT D816Y 0.29 0.11 9 CST-KIT D816V 0.25 0.039 3 GST-KIT D816H + R634W 0.08 0.04 2 CST-KIT N822H 0.37 0.12 5 GST-KIT N822K 0.15 0.058 5 GST-KIT Y823D 0.13 0.0075 3 Assay conditions: 1 pM ATP, 5 pg / ml Poly-EY, 10 min incubation at ambient temperature Virus containing media was collected from the transfected cell culture and used for infection to increase its titer. Virus containing media obtained after two rounds of infection was used for large-scale protein expression. For large-scale protein expression 100 cm2 round tissue culture plates were seeded with 5 x 107 cells/plate and infected with 1 mL of virus-containing media (approximately 5 MOTs). After 3 days, the cells were scraped off the plate and centrifuged at 500 rpm for 5 minutes. Cell pellets from 10-20, 100 cm2 plates, were re-suspended in 50 mL of ice-cold lysis buffer (25 mM Tris-HCI, pH 7.5, 2 mM EDTA, 1 % NP-40, 1 mM DTT, 1 mM PMSF). The cells were stirred on ice for 15 minutes and then centrifuged at 5000 rpm for 20 minutes.
The centrifuged cell lysate was loaded onto a 2 mL glutathione-sepharose column (Pharmacia) and washed 3 x with 10 mL of 25 mM Tris-HCI, pH 7.5, 2 mM EDTA, 1 mM
DTT, 200 mM NaCl. The GST-tagged proteins were then eluted by 10 applications (1 mL
each) of 25 mM Tris-HCI, pH 7.5, 10 mM reduced-glutathione, 100 mM NaCl, 1 mM
DTT, 10% glycerol and stored at -70 C.
The protein kinase activities of the various Kit mutants 200-500 ng were assayed in the presence or absence of inhibitors, 20 mM Tris-HCI, pH 7.6, 3 mM MnC12, 3 mM MgC12, 1 mM DTT, 10 pM Na3VO4, 3 pg/mL poly(Glu,Tyr) 4:1, 1% DMSO, 1.5 pM ATP (y-[33P]-ATP
0.1 pCi). The assay (30 pL) was carried out in 96-well plates at ambient temperature for 30 minutes and the reaction terminated by the addition of 20 pL of 125 mM
EDTA.
Subsequently, 30 pl of the reaction mixture were transferred onto lmmobilon-PVDF
membrane (Millipore, Bedford, MA, USA) previously soaked for 5 minutes with methanol, rinsed with water, then soaked for 5 minutes with 0.5% H3PO4 and mounted on vacuum manifold with disconnected vacuum source. After spotting all samples, vacuum was connected and each well rinsed with 200 pL 0.5% H3PO4. Membranes were removed and washed 4 x on a shaker with 1.0% H3P04, once with ethanol. Membranes were counted after drying at ambient temperature, mounting in Packard TopCount 96-well frame, and addition of 10 pUwell of Microscint (Packard). IC50 values were calculated by linear regression analysis of the percentage inhibition of each compound in duplicate, at 4 concentrations (usually 0.01, 0.1, 1 and 10 pM). One unit of protein kinase activity is defined as 1 nmole of 33P transferred from [y33P]ATP to the substrate protein/minute/mg of protein at RT.
Kit Mutation ICso (LM) (avg) ICso ( M) (avg) D816F >10 >10 D816H >10 >10 D816N >10 <10 D816Y >10 >10 D816V >10 >10 K642E <1 <10 Y823D <1 <1 Del 550-558 <1 <2 Del 557-561 <1 <2 N822K <2 <10 V654A >10 >10 N822H <2 <10 Del 550-558 + V654A <10 <10 Del 557-561 + V654A >10 >10 Midostaurln average N of HIS preparation IC50 M SEM values HT-KIT-TA23 wt 1.7 0.15 2 HT-KIT TA23 -D820G 0.084 0.05 2 HT-KIT TA23 -T6701 0.89 0.21 2 average No of GST preparation IC50 pM SEM values GST-KIT wt 1.8 0.26 10 GST-KIT Del 557-561 0.32 0.042 3 GST-KIT Del 550-558 0.53 0.057 3 GST-KIT Del 550-558+ V654A 0.27 0.079 5 GST-KIT Del 557-561 + V654A 0.34 0.11 5 GST-KIT V654A 0.46 0.16 5 GST-KIT K642E 0.64 0.036 4 CST-KIT R634W 0.33 0.13 2 GST-KIT T6701 + Del 550-558 0.11 0.05 2 CST-KIT D816P 0.41 0.055 5 GST-KIT D816H 0.35 0.078 5 GST-KIT D816N 0.74 0.25 5 GST-KIT D816Y 0.29 0.11 9 CST-KIT D816V 0.25 0.039 3 GST-KIT D816H + R634W 0.08 0.04 2 CST-KIT N822H 0.37 0.12 5 GST-KIT N822K 0.15 0.058 5 GST-KIT Y823D 0.13 0.0075 3 Assay conditions: 1 pM ATP, 5 pg / ml Poly-EY, 10 min incubation at ambient temperature Virus containing media was collected from the transfected cell culture and used for infection to increase its titer. Virus containing media obtained after two rounds of infection was used for large-scale protein expression. For large-scale protein expression 100 cm2 round tissue culture plates were seeded with 5 x 107 cells/plate and infected with 1 mL of virus-containing media (approximately 5 MOTs). After 3 days, the cells were scraped off the plate and centrifuged at 500 rpm for 5 minutes. Cell pellets from 10-20, 100 cm2 plates, were re-suspended in 50 mL of ice-cold lysis buffer (25 mM Tris-HCI, pH 7.5, 2 mM EDTA, 1 % NP-40, 1 mM DTT, 1 mM PMSF). The cells were stirred on ice for 15 minutes and then centrifuged at 5000 rpm for 20 minutes.
The centrifuged cell lysate was loaded onto a 2 mL glutathione-sepharose column (Pharmacia) and washed 3 x with 10 mL of 25 mM Tris-HCI, pH 7.5, 2 mM EDTA, 1 mM
DTT, 200 mM NaCl. The GST-tagged proteins were then eluted by 10 applications (1 mL
each) of 25 mM Tris-HCI, pH 7.5, 10 mM reduced-glutathione, 100 mM NaCl, 1 mM
DTT, 10% glycerol and stored at -70 C.
The protein kinase activities of the various Kit mutants 200-500 ng were assayed in the presence or absence of inhibitors, 20 mM Tris-HCI, pH 7.6, 3 mM MnC12, 3 mM MgC12, 1 mM DTT, 10 pM Na3VO4, 3 pg/mL poly(Glu,Tyr) 4:1, 1% DMSO, 1.5 pM ATP (y-[33P]-ATP
0.1 pCi). The assay (30 pL) was carried out in 96-well plates at ambient temperature for 30 minutes and the reaction terminated by the addition of 20 pL of 125 mM
EDTA.
Subsequently, 30 pl of the reaction mixture were transferred onto lmmobilon-PVDF
membrane (Millipore, Bedford, MA, USA) previously soaked for 5 minutes with methanol, rinsed with water, then soaked for 5 minutes with 0.5% H3PO4 and mounted on vacuum manifold with disconnected vacuum source. After spotting all samples, vacuum was connected and each well rinsed with 200 pL 0.5% H3PO4. Membranes were removed and washed 4 x on a shaker with 1.0% H3P04, once with ethanol. Membranes were counted after drying at ambient temperature, mounting in Packard TopCount 96-well frame, and addition of 10 pUwell of Microscint (Packard). IC50 values were calculated by linear regression analysis of the percentage inhibition of each compound in duplicate, at 4 concentrations (usually 0.01, 0.1, 1 and 10 pM). One unit of protein kinase activity is defined as 1 nmole of 33P transferred from [y33P]ATP to the substrate protein/minute/mg of protein at RT.
Claims (12)
1. Compound of formula A:
for use in the treatment of a KIT dependent disease in a patient, wherein a mutant form of KIT is associated with the KIT dependent disease.
for use in the treatment of a KIT dependent disease in a patient, wherein a mutant form of KIT is associated with the KIT dependent disease.
2. The compound according to claim 1, wherein the mutant form of KIT is D816F, D816H, D816N, D816Y, D816V, K642E, Y823D, Del 550-558, Del 557-561, N822K, V654A, N822H, Del 550-558 + V654A, Del 557-561 + V654A, Ins503AY, V560G, 558NP, Del 557-558, Del W559-560, F522C, Del 579, R634W, K642E, T801I, C809G, D820Y, N822K, N822H, Y823D, Y823C or T670I.
3. The compound according to claim 1, wherein the mutant form of KIT is D816F, D816H, D816N, D816Y, D816V, K642E, Y823D, Del 550-558, Del 557-561, N822K, V654A, N822H, Del 550-558 + V654A or Del 557-561 + V654A.
4. Compound of formula A
for use in the treatment of a KIT dependent disease in a patient, wherein a mutant form of KIT is associated with the KIT dependent disease and the KIT dependent disease is resistant to treatment with imatinib.
for use in the treatment of a KIT dependent disease in a patient, wherein a mutant form of KIT is associated with the KIT dependent disease and the KIT dependent disease is resistant to treatment with imatinib.
5. The compound of claim 1, wherein the mutant form of KIT is D816H, D816N, K642E, Y823D, Del 550-558, Del 557-561, N822K or N822H.
6. The compound according to any one of claims 1-5, wherein the KIT
dependent disease is a mast cell disease, acute myelogenous leukemia, a gastrointestinal stromal tumor, a seminoma or a dysgerminoma.
dependent disease is a mast cell disease, acute myelogenous leukemia, a gastrointestinal stromal tumor, a seminoma or a dysgerminoma.
7. Use of a compound of formula A:
for treating a KIT dependent disease in a patient, wherein a mutant form of KIT is associated with the KIT dependent disease.
for treating a KIT dependent disease in a patient, wherein a mutant form of KIT is associated with the KIT dependent disease.
8. The use according to claim 7, wherein the mutant form of KIT is D816F, D816H, D816N, D816Y, D816V, K642E, Y823D, Del 550-558, Del 557-561, N822K, V654A, N822H, Del 550-558 + V654A, Del 557-561 + V654A, Ins503AY, V560G, 558NP, Del 557-558, Del VV559-560, F522C, Del 579, R634W, K642E, T801I, C809G, D820Y, N822K, N822H, Y823D, Y823C or T670I.
9. The use according to claim 7, wherein the mutant form of KIT is D816F, D816H, D816N, D816Y, D816V, K642E, Y823D, Del 550-558, Del 557-561, N822K, V654A, N822H, Del 550-558 + V654A or Del 557-561 + V654A.
10. Use of a compound of formula A:
for treating a KIT dependent disease in a patient, wherein a mutant form of KIT is associated with the KIT dependent disease and the KIT dependent disease is resistant to treatment with imatinib.
for treating a KIT dependent disease in a patient, wherein a mutant form of KIT is associated with the KIT dependent disease and the KIT dependent disease is resistant to treatment with imatinib.
11. The use according to claim 7, wherein the mutant form of KIT is D816H, D816N, K642E, Y823D, Del 550-558, Del 557-561, N822K or N822H.
12. The use according to any one of claims 7 to 11, wherein the KIT
dependent disease is a mast cell disease, acute myelogenous leukemia, a gastrointestinal stromal tumor, a seminoma or a dysgerminoma.
dependent disease is a mast cell disease, acute myelogenous leukemia, a gastrointestinal stromal tumor, a seminoma or a dysgerminoma.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2807475A CA2807475A1 (en) | 2003-11-18 | 2004-11-17 | Inhibitors of the mutant form of kit |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US52071403P | 2003-11-18 | 2003-11-18 | |
| US60/520,714 | 2003-11-18 | ||
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106188028A (en) * | 2015-05-05 | 2016-12-07 | 天津国际生物医药联合研究院 | Containing oxadiazoles heterocycle compound and its preparation method and application |
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| TWI324604B (en) | 2003-06-18 | 2010-05-11 | Novartis Ag | New use of staurosporine derivatives |
| AU2004290902B2 (en) | 2003-11-18 | 2008-09-25 | Novartis Ag | Inhibitors of the mutant form of kit |
| CA2576926C (en) * | 2004-08-31 | 2012-10-02 | Novartis Ag | Use of midostaurin for treating gastrointestinal stromal tumors |
| AU2006242311B2 (en) | 2005-05-02 | 2010-03-04 | Novartis Ag | Use of pyrimidylamimobenzamide derivatives for the treatment of systematic mastocytosis |
| JP5154408B2 (en) | 2005-05-02 | 2013-02-27 | ノバルティス アーゲー | Pyrimidylaminobenzamide derivatives for eosinophilia syndrome |
| GT200600315A (en) * | 2005-07-20 | 2007-03-19 | CRYSTAL FORMS OF 4-METHYL-N- [3- (4-METHYL-IMIDAZOL-1-ILO) -5-TRIFLUOROMETILO-PHENYL] -3- (4-PYRIDINA-3-ILO-PIRIMIDINA-2-ILOAMINO) -BENZAMIDA | |
| DE602006013826D1 (en) * | 2005-07-20 | 2010-06-02 | Peter Valent | COMPOSITIONS FOR THE TREATMENT OF SYSTEMIC MASTOCYTOSIS |
| KR101498848B1 (en) | 2005-12-06 | 2015-03-05 | 노파르티스 아게 | Pyrimidylaminobenzamide derivatives for the treatment of neurofibromatosis |
| US8916552B2 (en) | 2006-10-12 | 2014-12-23 | Astex Therapeutics Limited | Pharmaceutical combinations |
| EP2073807A1 (en) | 2006-10-12 | 2009-07-01 | Astex Therapeutics Limited | Pharmaceutical combinations |
| CN101951910B (en) * | 2008-01-23 | 2013-07-17 | 诺瓦提斯公司 | Pharmaceutical use of optimizing the treatment of proliferative diseases mediated by the tyrosine kinase receptor KIT with imatinib |
| EP3076966A2 (en) * | 2013-12-02 | 2016-10-12 | BerGenBio AS | Use of kinase inhibitors |
| WO2018014520A1 (en) * | 2016-07-18 | 2018-01-25 | 嘉兴雅康博医学检验所有限公司 | Primers, probes and kit for use in detecting c-kit gene mutations |
| AU2019285066A1 (en) | 2018-06-15 | 2020-12-17 | Handa Pharmaceuticals, Inc. | Kinase inhibitor salts and compositions thereof |
| US20220010382A1 (en) * | 2018-11-12 | 2022-01-13 | Blueprint Medicines Corporation | Avapritinib resistance of kit mutants |
| US20210308133A1 (en) * | 2020-04-06 | 2021-10-07 | The Board Of Regents Of The University Of Texas System | Methods and compositions for inhibiting muscle wasting |
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| US5521184A (en) * | 1992-04-03 | 1996-05-28 | Ciba-Geigy Corporation | Pyrimidine derivatives and processes for the preparation thereof |
| US5543520A (en) | 1993-10-01 | 1996-08-06 | Ciba-Geigy Corporation | Pyrimidine derivatives |
| EP0672035A1 (en) | 1993-10-01 | 1995-09-20 | Novartis AG | Pyrimidineamine derivatives and processes for the preparation thereof |
| CZ101496A3 (en) * | 1993-10-12 | 1996-11-13 | Du Pont Merck Pharma | N-alkyl-n-aryl-pyrimidinamines and derivatives thereof |
| GB9523675D0 (en) | 1995-11-20 | 1996-01-24 | Celltech Therapeutics Ltd | Chemical compounds |
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| WO1998055152A1 (en) | 1997-06-06 | 1998-12-10 | Baylor College Of Medicine | The mast cell secretory machine as a target for anti-allergy drug development |
| US5874603A (en) | 1997-07-15 | 1999-02-23 | Gelest, Inc. | Branched higher alkylsilanes |
| CO4940418A1 (en) | 1997-07-18 | 2000-07-24 | Novartis Ag | MODIFICATION OF A CRYSTAL OF A DERIVATIVE OF N-PHENYL-2-PIRIMIDINAMINE, PROCESSES FOR ITS MANUFACTURE AND USE |
| CA2309639C (en) | 1997-11-13 | 2010-03-23 | John C. Houck | Small peptides and methods for treatment of asthma and inflammation |
| US20040157855A1 (en) * | 2001-04-05 | 2004-08-12 | Michael Heinrich | Use of n-phenyl-2-pyrimidineamine derivativea against mast cell-based diseases like allergic disorders |
| EP1401429A2 (en) | 2001-06-29 | 2004-03-31 | AB Science | Use of potent, selective and non toxic c-kit inhibitors for treating mastocytosis |
| TWI315982B (en) | 2001-07-19 | 2009-10-21 | Novartis Ag | Combinations comprising epothilones and pharmaceutical uses thereof |
| US20050095237A1 (en) | 2001-12-11 | 2005-05-05 | Emtage Peter C. | Methods of therapy and diagnosis using targeting of cells that express P2Y10 |
| US20050118600A1 (en) * | 2002-03-13 | 2005-06-02 | Yuko Aoki | Method for selecting drug sensitivity-determining factors and method for predicting drug sensitivity using the selected factors |
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| GB0223341D0 (en) * | 2002-10-08 | 2002-11-13 | Groningen Acad Ziekenhuis | Organic compounds |
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| US20080096864A1 (en) * | 2003-09-19 | 2008-04-24 | Sasa Dimitrijevic | Treatment Of Gastrointestinal Stromal Tumors With Imatinib And Midostaurin |
| AU2004290902B2 (en) | 2003-11-18 | 2008-09-25 | Novartis Ag | Inhibitors of the mutant form of kit |
| AU2006242311B2 (en) | 2005-05-02 | 2010-03-04 | Novartis Ag | Use of pyrimidylamimobenzamide derivatives for the treatment of systematic mastocytosis |
| CN200998572Y (en) * | 2007-01-29 | 2008-01-02 | 深圳市龙岗区坪山宽富高尔夫器具厂 | Golf club head cover capable of carrying repair piece |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106188028A (en) * | 2015-05-05 | 2016-12-07 | 天津国际生物医药联合研究院 | Containing oxadiazoles heterocycle compound and its preparation method and application |
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