WO2011078312A1 - 肝細胞癌患者に対する化学療法の治療効果予測方法 - Google Patents
肝細胞癌患者に対する化学療法の治療効果予測方法 Download PDFInfo
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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
- A61K31/40—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil
- A61K31/403—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil condensed with carbocyclic rings, e.g. carbazole
- A61K31/404—Indoles, e.g. pindolol
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
- A61P1/16—Drugs for disorders of the alimentary tract or the digestive system for liver or gallbladder disorders, e.g. hepatoprotective agents, cholagogues, litholytics
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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
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D403/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
- C07D403/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings
- C07D403/06—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2800/00—Detection or diagnosis of diseases
- G01N2800/52—Predicting or monitoring the response to treatment, e.g. for selection of therapy based on assay results in personalised medicine; Prognosis
Definitions
- the present invention relates to (Z) -5-[(1,2-dihydro-2-oxo-3H-indole-3-ylidene) methyl] 2,4-dimethyl in hepatocellular carcinoma patients undergoing hepatic artery embolization
- TSU-68 an antitumor agent for treating a cancer patient predicted to be highly likely to be shown.
- Treatment methods for hepatocellular carcinoma include surgical excision, hepatic artery embolization (hereinafter referred to as “TAE”), percutaneous local therapy (percutaneous ethanol injection therapy, percutaneous radiofrequency ablation, etc.), chemical They range from therapy, radiation therapy, and liver transplantation.
- TAE is a surgical treatment method that selectively induces hepatocellular carcinoma to necrosis by injecting an embolic substance such as gelatin sponge into the hepatic artery of a patient with hepatocellular carcinoma to occlude the feeding artery.
- TAE is also subjected to hepatic artery chemoembolization therapy (hereinafter referred to as “TACE”) in which an antitumor agent is administered to the affected area during a surgical procedure.
- TACE hepatic artery chemoembolization therapy
- TAE is the most frequently used treatment method for initial treatment cases and relapse cases, and it is recommended to perform it especially in non-indication cases or relapse cases of surgical resection or percutaneous local therapy.
- Large Non-Patent Document 1.
- the problem with TAE is that the tumor is rarely completely necrotic after treatment, and in many cases, the tumor remains in the marginal area, which causes recurrence or metastasis several months later. It is done. Therefore, if this recurrence and metastasis can be suppressed, it is thought that it can contribute to the prolongation of life prognosis further.
- Non-patent Documents 1 and 2 various antitumor agents have been tried for hepatocellular carcinoma.
- anthracycline antitumor agents platinum-type antitumor agents, alkaloid antitumor agents, nucleic acid metabolism antagonists and the like.
- administration of these antitumor agents is not recommended in terms of treatment guidelines (Non-patent Documents 1 and 2).
- TSU-68 one of the molecularly targeted antitumor agents, inhibits tyrosine phosphorylation of Flk-1 (also referred to as “KDR”), a vascular endothelial growth factor (hereinafter referred to as “VEGF”) receptor, It is a low molecular weight compound that suppresses the supply of oxygen and nutrients by inhibiting the formation of blood vessels in tumor tissue, and suppresses tumor growth and metastasis. In addition to VEGF receptor, it has been confirmed in vitro to inhibit tyrosine phosphorylation of platelet-derived growth factor (hereinafter referred to as “PDGF”) receptor, FGF receptor, etc. involved in intracellular signal transduction. ing.
- PDGF platelet-derived growth factor
- Non-patent Document 3 TSU-68 has been reported to have therapeutic effects on cancer types such as hepatocellular carcinoma in clinical trials.
- Non-patent Document 5 Similar to TSU-68, sunitinib, sorafenib, etc. are known as VEGF receptor inhibitors, and clinical trials using these for adjuvant therapy after TAE treatment have been attempted, but the therapeutic effect has been confirmed to date There is no report to say, and an antitumor agent showing a certain therapeutic effect on recurrence after TAE treatment is desired (Non-patent Document 5).
- the treatment system for hepatocellular carcinoma has not been established as a standard therapy, and there is currently no effective treatment especially after TAE treatment.
- the present invention is a method for predicting a therapeutic effect on chemotherapy using an antitumor agent containing TSU-68 or a salt thereof in hepatocellular carcinoma patients treated with TAE, and the possibility that the chemotherapy shows a sufficient therapeutic effect
- An object of the present invention is to provide an antitumor agent for treating a cancer patient predicted to have high potential.
- PDGF-BB PDGF BB isoform
- interleukin-8 interleukin-8
- IL-8 interleukin-8
- the present invention is as follows.
- [5] A method for treating hepatocellular carcinoma in a patient with hepatocellular carcinoma who has undergone hepatic artery embolization, wherein (Z) -5-[(1,2-dihydro -2-Oxo-3H-indole-3-ylidene) methyl] 2,4-dimethyl-1H-pyrrole-3-propanoic acid or a salt thereof, chemotherapy using an antitumor agent shows a sufficient therapeutic effect For cancer patients predicted to be highly likely, (Z) -5-[(1,2-dihydro-2-oxo-3H-indole-3-ylidene) methyl] 2,4-dimethyl-1H-
- the above method comprising administering an antitumor agent containing pyrrole-3-propanoic acid or a salt thereof.
- [6] In the treatment of hepatocellular carcinoma in hepatocellular carcinoma patients who have undergone hepatic artery embolization, the method of [1] or [2] is used to perform (Z) -5-[(1,2-dihydro-2-oxo 3H-indole-3-ylidene) methyl] 2,4-dimethyl-1H-pyrrole-3-propanoic acid or a salt thereof is highly likely to have sufficient therapeutic effect (Z) -5-[(1,2-dihydro-2-oxo-3H-indole-3-ylidene) methyl] 2,4-dimethyl-1H- for use against cancer patients predicted as Pyrrole-3-propanoic acid or a salt thereof.
- the prediction method of the present invention is an effective chemotherapy that has a markedly superior therapeutic effect (particularly a life-prolonging effect (prolongation of progression-free survival, suppression of recurrence / metastasis, etc.) in patients with hepatocellular carcinoma treated with TAE, That is, it is possible to select a chemotherapy using an antitumor agent containing TSU-68 or a salt thereof. In other words, it is possible to accurately provide chemotherapy that shows superior therapeutic effects only to those patients who are expected to have therapeutic effects, and unnecessary chemotherapy can be omitted, thereby reducing the burden on patients. It is also preferable in terms of medical economy.
- the prediction method of the present invention is based on the expression level of PDGF-BB or IL-8 in a patient, and includes chemotherapy of an antitumor agent containing TSU-68 or a salt thereof in a TAE-treated hepatocellular carcinoma patient. It predicts the therapeutic effect. Specifically, when the expression level of a patient's PDGF-BB or IL-8 is compared with a corresponding preset cutoff point, and the expression level is higher than the cutoff point, TSU-68 or It is predicted that there is a high possibility that chemotherapy using an antitumor agent containing the salt has a sufficient therapeutic effect.
- “Chemotherapy has a sufficient therapeutic effect” means that in patients with hepatocellular carcinoma treated with TAE, the therapeutic effect (especially life-prolonging effect) is markedly superior to when no drug is administered. To do.
- “therapeutic effect” is to comprehensively determine a tumor reduction effect, a life prolonging effect, and the like. The life-prolonging effect can be comprehensively evaluated by prolonging progression-free survival, suppressing recurrence and metastasis.
- TSU-68 is (Z) -5-[(1,2-dihydro-2-oxo-3H-indole-3-ylidene) methyl] 2,4-dimethyl-1H-pyrrole-3-propanoic acid It is known that it has an inhibitory effect on tumor growth in solid cancers such as liver cancer, lung cancer, colon cancer and uterine cancer.
- TSU-68 or a salt thereof can be produced by a known method, for example, the method described in JP-T-2002-516310.
- the salt of TSU-68 is not particularly limited as long as it is a pharmaceutically acceptable salt.
- inorganic acid such as hydrochloric acid, hydrobromic acid, sulfuric acid, nitric acid, phosphoric acid, methanesulfonic acid, ethanesulfonic acid, etc.
- salts obtained by reaction with organic acids such as p-toluenesulfonic acid and salicylic acid.
- the dosage form of the antitumor agent containing TSU-68 or a salt thereof is not particularly limited and can be appropriately selected depending on the purpose of treatment. Specifically, oral agents (tablets, coated tablets, powders, granules, capsules) Agents, liquids, etc.), injections, suppositories, patches, ointments and the like, and oral agents are preferred.
- the antitumor agent containing TSU-68 or a salt thereof can be prepared by a generally known method using a pharmacologically acceptable carrier.
- a pharmacologically acceptable carrier include various types commonly used for ordinary drugs, such as excipients, binders, disintegrants, lubricants, diluents, solubilizers, suspending agents, isotonic agents, pH. Examples include regulators, buffers, stabilizers, colorants, flavoring agents, and flavoring agents.
- excipients include lactose, sucrose, sodium chloride, glucose, maltose, mannitol, erythritol, xylitol, maltitol, inositol, dextran, sorbitol, albumin, urea, starch, calcium carbonate, kaolin, crystalline cellulose, silica
- examples include acids, methylcellulose, glycerin, sodium alginate, gum arabic, and mixtures thereof.
- the lubricant include purified talc, stearate, borax, polyethylene glycol, and a mixture thereof.
- binder examples include simple syrup, glucose solution, starch solution, gelatin solution, polyvinyl alcohol, polyvinyl ether, polyvinyl pyrrolidone, carboxymethyl cellulose, shellac, methyl cellulose, ethyl cellulose, water, ethanol, potassium phosphate, and a mixture thereof.
- disintegrant examples include dry starch, sodium alginate, agar powder, laminaran powder, sodium bicarbonate, calcium carbonate, polyoxyethylene sorbitan fatty acid esters, sodium lauryl sulfate, stearic acid monoglyceride, starch, lactose and mixtures thereof. Is mentioned.
- Examples of the diluent include water, ethyl alcohol, macrogol, propylene glycol, ethoxylated isostearyl alcohol, polyoxylated isostearyl alcohol, polyoxyethylene sorbitan fatty acid esters, and mixtures thereof.
- Examples of the stabilizer include sodium pyrosulfite, ethylenediaminetetraacetic acid, thioglycolic acid, thiolactic acid, and a mixture thereof.
- Examples of the isotonic agent include sodium chloride, boric acid, glucose, glycerin and a mixture thereof.
- Examples of the pH adjuster and buffer include sodium citrate, citric acid, sodium acetate, sodium phosphate, and mixtures thereof.
- Examples of soothing agents include procaine hydrochloride, lidocaine hydrochloride, and mixtures thereof.
- the dose of the antitumor agent is the age, weight, sex, stage, presence / absence of metastasis, treatment calendar, presence / absence of other antitumor agents, etc. It can be appropriately selected depending on the conditions. For example, 100 to 3000 mg / day is preferable, 200 to 1600 mg / day is more preferable, and 400 to 800 mg / day is particularly preferable.
- the administration schedule of the antitumor agent can be appropriately selected according to conditions such as the age, weight, sex, stage, presence / absence of metastasis, treatment calendar, etc. of the patient. For example, once a day or 2-4 times It is preferable to divide and administer every day.
- the subject patient of the present invention is a hepatocellular carcinoma patient who has undergone TAE.
- TAE is a surgical treatment that selectively induces hepatocellular carcinoma to necrosis by injecting an embolic material such as gelatin sponge into the hepatic artery that supplies nutrients to the tumor cells, thereby occluding the feeding artery (National). Comprehensive Cancer Network Clinical Practice Huidelines in Oncology Hepatobiliary Cancers v.2, 2009.).
- the TAE in the present invention includes TACE for administering an antitumor agent together.
- the TACE includes a mixture of an oily contrast agent such as lipiodol and an antitumor agent before injection of an embolic material.
- Examples include a method of injecting into a feeding artery and a method using an anti-tumor agent-eluting bead instead of an anti-tumor agent (ie, DEB-TACE) (J Hepatol. 2007 Mar; 46 (3): 474-81.) It is done.
- the antitumor agent used in TACE is not particularly limited as long as it is used for hepatocellular carcinoma, and examples include doxorubicin, epirubicin, cisplatin and the like.
- IL-8 is 1261724324562_0 to 1261724324562_1 and is a kind of cytokine that fulfills the function of transmitting information between cells, and is known to induce neutrophil chemotaxis.
- the base sequence and amino acid sequence of human IL-8 are known.
- the base sequence is registered with GenBank as accession number BC013615, and the amino acid sequence is registered with accession number AAH13615 (SEQ ID NOs: 3 and 4).
- the human PDGFB and human IL-8 nucleotide sequences have one to several nucleotide deletions, substitutions, additions or insertions in the above known nucleotide sequences, and the activity of the protein.
- a base sequence encoding a protein having the same is also included.
- the range of “1 to several” is not particularly limited, but for example, 1 to 20, preferably 1 to 10, more preferably 1 to 7, more preferably 1 to 5, and particularly preferably 1 to 1. Three, or one or two.
- the base sequences of human PDGFB and human IL-8 hybridize under stringent conditions with a base sequence consisting of a sequence complementary to the above known base sequence and encode a protein having the activity of the protein.
- a base sequence is also included.
- the stringent condition refers to a condition in which a so-called specific hybrid is formed and a non-specific hybrid is not formed.
- the sodium concentration is 10 mM to 300 mM, preferably 20 to 100 mM, and the temperature Means conditions at 25 ° C. to 70 ° C., preferably 42 ° C. to 55 ° C.
- the base sequences of human PDGFB and human IL-8 include the above-mentioned known base sequences and BLAST (Basic Local Alignment Search, Tool Basic, National Center, Biologic Information, etc.) (E.g., default or default parameters) and the activity of the protein consisting of a base sequence having a homology of 80% or higher, more preferably 90% or higher, most preferably 95% or higher. Also included is a base sequence encoding a protein having a homology of 80% or higher, more preferably 90% or higher, most preferably 95% or higher. Also included is a base sequence encoding a protein having
- the expression levels of PDGF-BB and IL-8 can be performed using a patient-derived biological sample, which includes body fluids (blood, urine, etc.), tissues, extracts thereof, Examples include collected tissue cultures, and body fluids, particularly blood such as peripheral blood, are preferred because of the ease of collection.
- a method for collecting a biological sample a method according to the type of the biological sample can be selected as appropriate. Preparation of DNA, RNA, and protein from a biological sample can be performed by a generally known method.
- the prediction method of the present invention uses the expression level of PDGF-BB or IL-8 as an index, and the expression level may be the expression level of mRNA or the expression level of protein.
- the expression level of PDGF-BB or IL-8 mRNA is determined by Northern blotting, quantitative or semi-quantitative PCR (for example, RT) using a probe or primer that specifically hybridizes with PDGFB or IL-8 mRNA.
- -PCR method real-time PCR method
- in situ hybridization method and other known gene expression level measurement methods can be used.
- the expression level can be evaluated by a ratio based on a protein / gene (eg, a housekeeping gene such as ⁇ -actin or its expressed protein) that always expresses a certain range of quantity.
- the protein expression level of PDGF-BB or IL-8 is measured using an enzyme immunoassay method, a radioimmunoassay method, a fluorescent immunoassay method, an ELISA method using an antibody that specifically recognizes PDGF-BB or IL-8. It can be measured by performing a known immunological assay such as Western blotting or immunohistochemical staining.
- kits for measuring the expression level of PDGF-BB or IL-8 such as “Human PDGF-BB Immunoassay” (R & D ⁇ systems) and “Human IL8 EASIA kit” (BIOSOURCE EUROPE SA) can also be used. .
- the prediction method of the present invention can be used for TSU-68 or its It is predicted that there is a high possibility that chemotherapy using an antitumor agent containing a salt will show a remarkably superior therapeutic effect.
- the cut-off point can be determined by various statistical analysis methods from the PDGF-BB or IL-8 expression level measured in advance.
- the cut-off point of PDGF-BB can be specified as one of the following values.
- the progression-free survival rate and the hazard ratio can be determined by known methods.
- the value of PDGF-BB expression level for dividing hepatocellular carcinoma patients treated with TAE or TACE into a high expression group and a low expression group of PDGF-BB, the TSU-68 administration group in the high expression group of PDGF-BB A value in which the hazard ratio in the high expression group of PDGF-BB relative to the TSU-68 non-administered group is a minimum or a predetermined value or less (the predetermined value or less means that the hazard ratio is 0.65 or less, 0.6 or less 0.55 or less, 0.5 or less (for example, 0.6 or less)); 5.
- the hazard ratio in the low expression group of PDGF-BB relative to the TSU-68 administration group is a minimum or a predetermined value or less (the predetermined value or less means that the hazard ratio is 0.65 or less, 0.6 or less, 0.55 or less, 0.5 or less (for example, 0.6 or less)); 7).
- the value obtained by subtracting the difference in 6-month progression-free survival in the TSU-68 non-administered group at the maximum is greater than or equal to a predetermined value (the predetermined value or more is the difference in the 6-month progression-free survival rate)
- a predetermined value is the difference in the 6-month progression-free survival rate
- the hazard ratio of the PDGF-BB in the high expression group to the TSU-68 non-administration group was compared to the TSU-68 non-administration group in the PDGF-BB low-expression group.
- the cut-off point in IL-8 can be obtained in the same manner as the cut-off point of PDGF-BB.
- the cut-off point is preferably 1480 to 2030 pg / ml, particularly preferably 1740 to 1960 pg / ml.
- the cut-off point of IL-8 is preferably 2.1 to 10.5 pg / ml, and 2.1 to 6.6 pg. / Ml is particularly preferred.
- each cut-off point varies depending on various conditions such as the object to be measured and the type of measurement method, so it is necessary to set in advance according to the conditions. Cut-off points are the measurement target (number of patients, age, gender, weight, health condition, disease state, biological sample type) and measurement method (whether the expression product of a gene or protein is to be measured), It may vary depending on measurement conditions (for example, primer, probe sequence, label type, antibody type and sensitivity when the expression product is a protein), statistical techniques, and the like in the measurement of gene expression product (mRNA).
- measurement target number of patients, age, gender, weight, health condition, disease state, biological sample type
- measurement method whether the expression product of a gene or protein is to be measured
- It may vary depending on measurement conditions (for example, primer, probe sequence, label type, antibody type and sensitivity when the expression product is a protein), statistical techniques, and the like in the measurement of gene expression product (mRNA).
- the present invention also provides a TSU for treating a cancer patient predicted to have a sufficient therapeutic effect by a chemotherapy using an antitumor agent containing TSU-68 or a salt thereof by the above prediction method.
- the present invention relates to an antitumor agent containing 68 or a salt thereof.
- the antitumor agent has the above form.
- the present invention also relates to a cancer that is predicted to be highly likely that chemotherapy using TSU-68 or a salt thereof and an antitumor agent containing TSU-68 or a salt thereof has a sufficient therapeutic effect by the above prediction method.
- the present invention relates to an antitumor agent kit including instructions for administering TSU-68 or a salt thereof to a patient.
- the “instructions for use” are described in the attached document, pamphlet, etc., regardless of whether or not they are legally binding as long as they describe the administration method and administration standard of TSU-68. Is done.
- the instruction manual may be printed and attached to the package of the antitumor agent kit, or may be enclosed with the antitumor agent in the package of the antitumor agent kit.
- the present invention is also expected to be more likely to show a sufficient therapeutic effect on chemotherapy using an antitumor agent containing TSU-68 or a salt thereof than a hepatocellular carcinoma patient treated with TAE
- the present invention relates to a method for selecting patients.
- the method includes the following steps (1) to (3): (1) measuring the expression level of PDGF-BB or IL-8 contained in a biological sample collected from the patient; (2) a step of comparing the expression level of PDGF-BB or IL-8 obtained in the step (1) with a corresponding cut-off point set in advance; and (3) a result of the comparison in the step (2).
- Patients with higher expression levels of PDGF-BB or IL-8 than the cut-off point may have a sufficient therapeutic effect on chemotherapy using an antitumor agent containing TSU-68 or a salt thereof
- the present invention further relates to a method of treating hepatocellular carcinoma patients treated with TAE by chemotherapy using an antitumor agent containing TSU-68 or a salt thereof.
- the method includes the following steps (1) to (4): (1) measuring the expression level of PDGF-BB or IL-8 contained in a biological sample collected from the patient; (2) a step of comparing the expression level of PDGF-BB or IL-8 obtained in the above step (1) with a corresponding cut-off point set in advance; (3) As a result of the comparison in the above step (2), a patient whose PDGF-BB or IL-8 expression level is higher than the cut-off point is treated with an antitumor agent containing TSU-68 or a salt thereof.
- the cut-off point described above can be used as the cut-off point of PDGF-BB and IL-8 used in the selection and treatment method.
- the steps (1) to (3) used in the selection and treatment methods can be performed in the same manner as the prediction method.
- Example 1 Calculation of cut-off point TSU-68 administration group and non-administration group in cases where hepatocellular carcinoma was diagnosed and hepatectomy and percutaneous local therapy could not be applied and TACE was performed A comparative clinical trial was conducted.
- the antitumor agent used in TACE is epirubicin.
- Target cases were randomly assigned to TSU-68 administration group and non-administration group. Cases assigned to the TSU-68 administration group started administration of TSU-68 within 2 weeks after the TACE operation. TSU-68 was orally administered 200 mg once a day after breakfast and dinner twice daily. The non-administration group was followed up without any further treatment for cancer after TACE.
- the progression-free survival period is the period from the TACE operation date to the earliest date among the days when the following events were confirmed.
- ⁇ RECIST '' The marker (AFP, PIVKA-II and AFP-L3 fractions) was measured for evaluation.
- Table 1 shows the treatment results of the TSU-68 administration group and the non-administration group after TACE in this test.
- the expression levels of PDGF-BB and IL-8 in the blood obtained after TACE treatment and before TSU-68 administration were measured by the ELISA Kit shown below.
- the cut-off point was determined by the following statistical analysis method.
- a cut-off point for dividing a patient into a PDGF-BB high expression group and a low expression group, and in the case of the high expression group of PDGF-BB, 6 months between the TSU-68 administration group and the non-administration group The cut-off point at which the difference in exacerbation survival rate was 20% or more was calculated and found to be 1480-2030 pg / ml.
- a cut-off point for dividing a patient into a high expression group and a low expression group of PDGF-BB, and in the case of the high expression group of PDGF-BB, the hazard ratio of the TSU-68 administration group to the non-administration group is The cut-off point that was 0.6 or less was calculated to be 1740-1960 pg / ml.
- a cut-off point that divides patients into a high expression group and a low expression group of IL-8 In the case of the high expression group of IL-8, there is no 6-month treatment between the TSU-68 administration group and the non-administration group.
- the cut-off point at which the difference in exacerbation survival rate was 20% or more was calculated to be 2.1 to 6.6 pg / ml.
- a cut-off point for dividing patients into a high expression group and a low expression group of IL-8, and in the case of the high expression group of IL-8, the hazard ratio of the TSU-68 administration group to the non-administration group is The cut-off point that was 0.6 or less was calculated to be 2.1 to 10.5 pg / ml.
- Example 2 Therapeutic effect in patients selected using PDGF-BB or IL-8 as an index Using the cut-off point calculated in Example 1, PDGF-BB or IL-8 high expression group and low expression Survival analysis of the TSU-68 administration group and the non-administration group in the group was performed. The results are shown in Tables 3 to 9.
- the lower limit of 1480 pg / ml of the cut-off point at which the difference in 6-month progression-free survival between the TSU-68 administration group and the non-administration group of the PDGF-BB high expression group is 20% or more is When used as a cut-off point, in the PDGF-BB low expression group, the TSU-68 administration group showed almost the same therapeutic effect as the non-administration group, whereas in the PDGF-BB high expression group, TSU-68 administration The group showed a markedly superior therapeutic effect than the non-administered group.
- the lower limit of 1740 pg / ml is used as the cut-off point among the cut-off points at which the hazard ratio of the TSU-68 administration group to the non-administration group is 0.6 or less.
- the TSU-68 administration group showed almost the same therapeutic effect as the non-administration group, whereas in the PDGF-BB high expression group, the TSU-68 administration group was not administered. The treatment effect was significantly better than the group.
- the upper limit of 1960 pg / ml is used as the cutoff point among the cutoff points at which the hazard ratio of the TSU-68 administration group to the non-administration group is 0.6 or less.
- the TSU-68 administration group showed almost the same therapeutic effect as the non-administration group, whereas in the PDGF-BB high expression group, the TSU-68 administration group was not administered. The treatment effect was significantly better than the group.
- the upper limit of 2030 pg / ml is the cut-off point at which the difference in 6-month progression-free survival between the TSU-68 administration group and the non-administration group in the PDGF-BB high expression group is 20% or more.
- the TSU-68 administration group showed almost the same therapeutic effect as the non-administration group, whereas in the PDGF-BB high expression group, TSU-68 administration The group showed a markedly superior therapeutic effect than the non-administered group.
- the cut-off point at which the difference in 6-month progression-free survival between the TSU-68 administration group and the non-administration group of the IL-8 high expression group is 20% or more is the lower limit
- IL-8 When the lower limit of 2.1 pg / ml is adopted as the cut-off point among the cut-off points at which the hazard ratio of the high-expression group to the TSU-68 administration group to the non-administration group is 0.6 or less, IL-8 is low
- the TSU-68 administration group showed almost the same therapeutic effect as the non-administration group, whereas in the IL-8 high expression group, the TSU-68 administration group was significantly better than the non-administration group. Showed the effect.
- the cut-off point at which the difference in 6-month progression-free survival between the TSU-68 administration group and the non-administration group in the IL-8 high expression group is 20% or more is the upper limit value.
- the median IL-8 expression level of 6.6 pg / ml was adopted as the cut-off point, the TSU-68 administration group showed almost the same therapeutic effect as the non-administration group in the IL-8 low expression group.
- the TSU-68 administration group showed a markedly superior therapeutic effect than the non-administration group.
- the upper limit of 10.5 pg / ml is set as the cut-off point among the cut-off points at which the hazard ratio of the IL-8 high expression group to the non-administration group in the TSU-68 administration group is 0.6 or less.
- the TSU-68 administration group showed almost the same therapeutic effect as the non-administration group, whereas in the IL-8 high expression group, the TSU-68 administration group did not. The therapeutic effect was remarkably superior to that of the administration group.
- the treatment effect was comparable between the TSU-68 administration group and the non-administration group, whereas PDGF-BB or IL-8.
- the difference in 6-month progression-free survival between the TSU-68 administration group and the non-administration group is 22 to 27%, and the hazard ratio is 0.51 to 0.68. was gotten.
- TSU-68 can be expected to have a remarkably excellent therapeutic effect by selecting hepatocellular carcinoma patients treated with TACE using PDGF-BB or IL-8 as an index. .
- the prediction method of the present invention makes it possible to accurately provide chemotherapy using TSU-68 only to patients with hepatocellular carcinoma after TAE who can expect a therapeutic effect. Thereby, unnecessary chemotherapy can be omitted, the burden on the patient can be reduced, and it is also beneficial in terms of medical economy.
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Abstract
Description
(1)該患者から採取された生体試料に含まれるPDGF-BB又はIL-8の発現量を測定する工程、
(2)上記工程(1)で得られたPDGF-BB又はIL-8の発現量を、予め設定した対応するカットオフポイントと比較する工程、及び
(3)上記工程(2)における比較の結果、PDGF-BB又はIL-8の発現量が該カットオフポイントよりも高い場合、該患者に対する(Z)-5-[(1,2-ジヒドロ-2-オキソ-3H-インドール-3-イリデン)メチル]2,4-ジメチル-1H-ピロール-3-プロパン酸又はその塩を含有する抗腫瘍剤を用いた化学療法が十分な治療効果を示す可能性が高いと予測する工程。
2.TAE又はTACEを施術された肝細胞癌患者のTSU-68投与群におけるPDGF-BB発現量の中央値又は平均値;
3.TAE又はTACEを施術された肝細胞癌患者をPDGF-BBの高発現群と低発現群に分けるPDGF-BB発現量の値であって、該PDGF-BBの高発現群におけるTSU-68投与群と該PDGF-BBの高発現群におけるTSU-68非投与群の6ヶ月無増悪生存率の差が最大又は所定の値以上となる値(所定の値以上とは、当該6ヶ月無増悪生存率の差が20%以上、25%以上、30%以上、40%以上または50%以上を指す。例えば、20%以上が挙げられる);
4.TAE又はTACEを施術された肝細胞癌患者をPDGF-BBの高発現群と低発現群に分けるPDGF-BB発現量の値であって、該PDGF-BBの高発現群におけるTSU-68投与群の該PDGF-BBの高発現群におけるTSU-68非投与群に対するハザード比が最小又は所定の値以下となる値(所定の値以下とは、当該ハザード比が0.65以下、0.6以下、0.55以下、0.5以下を指す。例えば、0.6以下が挙げられる);
5.TAE又はTACEを施術された肝細胞癌患者をPDGF-BBの高発現群と低発現群に分けるPDGF-BB発現量の値であって、該PDGF-BBの高発現群におけるTSU-68投与群と該PDGF-BBの低発現群におけるTSU-68投与群の6ヶ月無増悪生存率の差が最大又は所定の値以上となる値(所定の値以上とは、当該6ヶ月無増悪生存率の差が20%以上、25%以上、30%以上、40%以上または50%以上を指す。例えば、20%以上が挙げられる);
6.TAE又はTACEを施術された肝細胞癌患者をPDGF-BBの高発現群と低発現群に分けるPDGF-BB発現量の値であって、該PDGF-BBの高発現群におけるTSU-68投与群の該PDGF-BBの低発現群におけるTSU-68投与群に対するハザード比が最小又は所定の値以下となる値(所定の値以下とは、当該ハザード比が0.65以下、0.6以下、0.55以下、0.5以下を指す。例えば、0.6以下が挙げられる);
7.TAE又はTACEを施術された肝細胞癌患者をPDGF-BBの高発現群と低発現群に分けるPDGF-BB発現量の値であって、該PDGF-BBの高発現群におけるTSU-68投与群と該PDGF-BBの高発現群におけるTSU-68非投与群の6ヶ月無増悪生存率の差から、該PDGF-BBの低発現群におけるTSU-68投与群と該PDGF-BBの低発現群におけるTSU-68非投与群の6ヶ月無増悪生存率の差を減じた値が最大又は所定の値以上になる値(所定の値以上とは、当該6ヶ月無増悪生存率の差を減じた値が10%以上、20%以上、30%以上、40%以上または50%以上を指す。例えば、10%以上が挙げられる);
8.TAE又はTACEを施術された肝細胞癌患者をPDGF-BBの高発現群と低発現群に分けるPDGF-BB発現量の値であって、該PDGF-BBの高発現群におけるTSU-68投与群の該PDGF-BBの高発現群におけるTSU-68非投与群に対するハザード比を、該PDGF-BBの低発現群におけるTSU-68投与群における該PDGF-BBの低発現群におけるTSU-68非投与群に対するハザード比で除した値が最小又は所定の値以下となる値(所定の値以下とは、当該ハザード比で除した値が0.8以下、0.7以下、0.6以下、0.5以下、0.4以下を指す。例えば、0.8以下が挙げられる)。
(1)該患者から採取された生体試料に含まれるPDGF-BB又はIL-8の発現量を測定する工程、
(2)上記工程(1)で得られたPDGF-BB又はIL-8の発現量を、予め設定した対応するカットオフポイントと比較する工程、及び
(3)上記工程(2)における比較の結果、PDGF-BB又はIL-8の発現量が該カットオフポイントよりも高い患者を、TSU-68又はその塩を含有する抗腫瘍剤を用いた化学療法に対して十分な治療効果を示す可能性が高い患者として予測し認定する工程。
(1)該患者から採取された生体試料に含まれるPDGF-BB又はIL-8の発現量を測定する工程、
(2)上記工程(1)で得られたPDGF-BB又はIL-8の発現量を、予め設定した対応するカットオフポイントと比較する工程、
(3)上記工程(2)における比較の結果、PDGF-BB又はIL-8の発現量が該カットオフポイントよりも高い患者を、TSU-68又はその塩を含有する抗腫瘍剤を用いた化学療法に対して十分な治療効果を示す可能性が高い患者として予測し認定する工程、及び
(4)上記工程(3)にて認定された患者に対してTSU-68又はその塩を含有する抗腫瘍剤を投与する工程。
肝細胞癌と診断され、肝切除術及び経皮的局所療法が適応できず、TACEが施術された症例を対象とし、TSU-68投与群及び非投与群の比較臨床試験を実施した。ここで、TACEで用いた抗腫瘍剤は、エピルビシンである。
実施例1で算出したカットオフポイントを用いてPDGF-BB又はIL-8の高発現群及び低発現群におけるTSU-68投与群と非投与群の生存期間解析を実施した。結果を表3~表9に示す。
Claims (6)
- 下記工程(1)~(3)を含む、肝動脈塞栓術を施術された肝細胞癌患者における(Z)-5-[(1,2-ジヒドロ-2-オキソ-3H-インドール-3-イリデン)メチル]2,4-ジメチル-1H-ピロール-3-プロパン酸又はその塩を含有する抗腫瘍剤を用いた化学療法の治療効果を予測する方法:
(1)該患者から採取された生体試料に含まれるPDGF-BB又はIL-8の発現量を測定する工程、
(2)上記工程(1)で得られたPDGF-BB又はIL-8の発現量を、予め設定した対応するカットオフポイントと比較する工程、及び
(3)上記工程(2)における比較の結果、PDGF-BB又はIL-8の発現量が該カットオフポイントよりも高い場合、該患者に対する(Z)-5-[(1,2-ジヒドロ-2-オキソ-3H-インドール-3-イリデン)メチル]2,4-ジメチル-1H-ピロール-3-プロパン酸又はその塩を含有する抗腫瘍剤を用いた化学療法が十分な治療効果を示す可能性が高いと予測する工程。 - 肝動脈塞栓術が肝動脈化学塞栓療法である、請求項1記載の方法。
- 請求項1又は2の方法により(Z)-5-[(1,2-ジヒドロ-2-オキソ-3H-インドール-3-イリデン)メチル]2,4-ジメチル-1H-ピロール-3-プロパン酸又はその塩を含有する抗腫瘍剤を用いた化学療法が十分な治療効果を示す可能性が高いと予測された癌患者に投与されることを特徴とする、(Z)-5-[(1,2-ジヒドロ-2-オキソ-3H-インドール-3-イリデン)メチル]2,4-ヂメチル-1H-ピロール-3-プロパン酸又はその塩を含有する抗腫瘍剤。
- 請求項3に記載の抗腫瘍剤および請求項1又は2の方法により(Z)-5-[(1,2-ジヒドロ-2-オキソ-3H-インドール-3-イリデン)メチル]2,4-ジメチル-1H-ピロール-3-プロパン酸又はその塩を含有する抗腫瘍剤を用いた化学療法が十分な治療効果を示す可能性が高いと予測された癌患者に、(Z)-5-[(1,2-ジヒドロ-2-オキソ-3H-インドール-3-イリデン)メチル]2,4-ジメチル-1H-ピロール-3-プロパン酸又はその塩を投与することを記載した使用説明書を含む、抗腫瘍剤キット。
- 肝動脈塞栓術を施術された肝細胞癌患者における肝細胞癌を治療する方法であって、請求項1又は2の方法により(Z)-5-[(1,2-ジヒドロ-2-オキソ-3H-インドール-3-イリデン)メチル]2,4-ジメチル-1H-ピロール-3-プロパン酸又はその塩を含有する抗腫瘍剤を用いた化学療法が十分な治療効果を示す可能性が高いと予測された癌患者に対して、(Z)-5-[(1,2-ジヒドロ-2-オキソ-3H-インドール-3-イリデン)メチル]2,4-ヂメチル-1H-ピロール-3-プロパン酸又はその塩を含有する抗腫瘍剤を投与することを含む、上記方法。
- 肝動脈塞栓術を施術された肝細胞癌患者における肝細胞癌の治療において、請求項1又は2の方法により(Z)-5-[(1,2-ジヒドロ-2-オキソ-3H-インドール-3-イリデン)メチル]2,4-ジメチル-1H-ピロール-3-プロパン酸又はその塩を含有する抗腫瘍剤を用いた化学療法が十分な治療効果を示す可能性が高いと予測された癌患者に対して使用するための、(Z)-5-[(1,2-ジヒドロ-2-オキソ-3H-インドール-3-イリデン)メチル]2,4-ヂメチル-1H-ピロール-3-プロパン酸又はその塩。
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CN2010800623055A CN102724981A (zh) | 2009-12-25 | 2010-12-24 | 针对肝细胞癌症患者的化学疗法的治疗效果预测方法 |
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US13/518,921 US20120264803A1 (en) | 2009-12-25 | 2010-12-24 | Method for predicting therapeutic effects of chemotherapy on hepatocellular carcinoma patients |
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EP10839542.7A EP2517708A4 (en) | 2009-12-25 | 2010-12-24 | METHOD FOR PREDICTING THE THERAPEUTIC EFFECTIVENESS OF CHEMOTHERAPY IN A LIVER CELL CARCINOMA PATIENT |
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TW201130820A (en) | 2011-09-16 |
EP2517708A1 (en) | 2012-10-31 |
CA2785409A1 (en) | 2011-06-30 |
JPWO2011078312A1 (ja) | 2013-05-09 |
CN102724981A (zh) | 2012-10-10 |
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