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健康な被験者における BAR502 の安全性、忍容性、薬物動態および薬力学を調査する

2026年9月16日 更新者:BAR Pharmaceuticals s.r.l.

健康な被験者におけるBAR502の単回および複数回の漸増用量の安全性、忍容性、薬物動態および薬力学を調査する第I相2部試験

First-in-human, single centre, two parts, dose-escalation, parallel-group, safety, tolerability, pharmacokinetic and pharmacodynamic Phase I study. Part A: randomised, double-blind, placebo-controlled, single ascending dose study.

Part B: open label, multiple ascending dose study.

調査の概要

状態

完了

条件

介入・治療

詳細な説明

First-in-human, single centre, two parts, dose-escalation, parallel-group, safety, tolerability, pharmacokinetic and pharmacodynamic Phase I study. Part A: randomised, double-blind, placebo-controlled, single ascending dose study to evaluate the safety and tolerability of BAR502 and matching placebo across 4 single ascending doses administered to 4 cohorts of 8 healthy subjects each.

Part B: open label, multiple ascending dose study to evaluate the safety and tolerability of two ascending doses of BAR502, considered as safe in study Part A, when administered as multiple doses to 2 cohorts of 10 healthy subjects each.

研究の種類

介入

入学 (実際)

43

段階

  • フェーズ 1

連絡先と場所

このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。

研究場所

      • Arzo、スイス、CH-6864
        • CROSS Research S.A. Phase I Unit

参加基準

研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。

適格基準

就学可能な年齢

18年~55年 (大人)

健康ボランティアの受け入れ

はい

受講資格のある性別

全て

説明

Inclusion Criteria:

  1. Informed consent: signed written informed consent before inclusion in the study

  2. Sex and Age: men/women, 18-55 years old inclusive

  3. Body Mass Index: 18.5-30 kg/m2 inclusive

  4. Vital signs: systolic blood pressure 100-139 mmHg, diastolic blood pressure 50-89 mmHg, heart rate 50-99 bpm, measured after 5 min at rest in the sitting position

  5. Full comprehension: ability to comprehend the full nature and purpose of the study, including possible risks and side effects; ability to co-operate with the Investigator and to comply with the requirements of the entire study

  6. Renal functionality: estimated glomerular filtration rate calculated using the Cockcroft-Gault equation and normalized to an average surface area of 1.73 m2 ≥ 90 mL/min at screening

  7. Tobacco: non-smokers, non-users of nicotine containing products and non-users of Vapo e-cigarettes for at least 3 months prior to study screening

  8. Contraception and fertility (women only): women of non-child-bearing potential or in post-menopausal status for at least 1 year, defined as such when there is either:

    1. 12 months of spontaneous amenorrhea or
    2. 6 weeks documented postsurgical bilateral oophorectomy with or without hysterectomy will be admitted. For all women, pregnancy test result must be negative at screening and on Day -1 of each study part.
  9. Contraception (men only): men will either be sterile or agree to use one of the following approved methods of contraception from the first investigational medicinal product administration until at least 90 days after the last administration, also in case their partner is currently pregnant:

    1. A male condom with spermicide
    2. A sterile sexual partner or a partner in post-menopausal status for at least 1 year
    3. Use by the female sexual partner of an IUD, a female condom with spermicide, a contraceptive sponge with spermicide, a diaphragm with spermicide, a cervical cap with spermicide, or hormonal oral, implantable, transdermal, or injectable contraceptives for at least 2 months before the screening visit or: True abstinence

Exclusion Criteria:

  1. ECG 12-leads (supine position): clinically significant abnormalities, in particular QTcF > 450 ms
  2. Physical findings: clinically significant abnormal physical findings which could interfere with the objectives of the study
  3. Laboratory analyses: clinically significant abnormal laboratory values at screening indicative of physical illness or any acute laboratory abnormality at Screening which, in the opinion of the Investigator, should preclude participation in the study of an investigational compound. INR > 1.2
  4. Diseases: significant history of renal, hepatic (in particular, liver or hepatobiliary diseases as indicated by serum alanine aminotransferase, aspartate aminotransferase or total bilirubin levels exceeding the upper limit of normality), gastrointestinal, cardiovascular, respiratory, skin, haematological, endocrine or neurological diseases that may interfere with the aim of the study
  5. Gallbladder: history of cholecystectomy, presence of gallstones or clinically significant gallbladder abnormalities that may interfere with the aim of the study
  6. Allergy: ascertained or presumptive hypersensitivity to the active principle and/or formulations' ingredients; history of anaphylaxis to drugs or allergic reactions in general, which the Investigator considers may affect the outcome of the study
  7. Medications: medications, including over the counter medications, homeopathic preparations, vitamins, food supplements and herbal remedies for 3 weeks before the start of the study
  8. Investigative drug studies: participation in the evaluation of any investigational product for 3 months before this study. The 3-month interval is calculated as the time between the first calendar day of the month that follows the last visit of the previous study and the first day of the present study
  9. Blood donation: blood donations for 3 months before this study
  10. Drug, alcohol, caffeine, tobacco: history of drug, alcohol [>1 drink/day for females and >2 drinks/day for men, defined according to the USDA Dietary Guidelines 2020-2025] or caffeine (>5 cups coffee/tea/day) abuse
  11. SARS-CoV-2 test: positive Covid-19 rapid test at Day -1
  12. Cotinine: positive cotinine test at screening
  13. Drug test: positive result at the urine drug screening test at screening or Day -1
  14. Alcohol test: positive alcohol saliva test at screening or Day -1
  15. Diet: abnormal diets (<1600 or >3500 kcal/day) or substantial changes in eating habits in the 4 weeks before this study; vegetarians and vegans
  16. Pregnancy (women only): positive or missing pregnancy test at screening or Day -1; child-bearing potential, pregnant or lactating women.

研究計画

このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。

研究はどのように設計されていますか?

デザインの詳細

  • 主な目的:他の
  • 割り当て:ランダム化
  • 介入モデル:順次割り当て
  • マスキング:トリプル

武器と介入

参加者グループ / アーム
介入・治療
実験的:BAR502 single dose

Each subject will receive an oral single-dose of BAR 502 [Study Part A]

Single oral doses of BAR 502/placebo will be administered as film-coated tablets, in the morning of Day 1, with 150 mL of water, after an overnight fasting of at least 8 hours.

BAR 502 film-coated tablets are available at dose strengths of 3, 10 and 50mg. A maximum of 4 dose levels are pre-planned (3, 10, 30 and 60mg).

プラセボコンパレーター:Placebo single dose

Each subject will receive an oral single-dose of placebo [Study Part A]

Matching BAR 502 placebo film-coated tablets will be given to 2 out of 8 subjects in each cohort using the same regimen as outlined for the active study treatment

実験的:BAR502 multiple doses

Each subject will receive a dose of BAR502 once a day for 14 days [Study Part B]

The 2 multiple ascending doses selected based on results of study part A will be administered to 2 study cohorts of 10 subjects each. The IMP will be orally administered once a day from Day 1 to Day 14, at 8:00±1 h, for a total of 14 doses.

この研究は何を測定していますか?

主要な結果の測定

結果測定
メジャーの説明
時間枠
Treatment-emergent adverse events
時間枠:PART A: Day-15/-2; Day-1 to Day4; Day 8; Day15 - PART B: Day-15/-2 to Day18; Day30

Safety will be evaluated through the assessment of adverse events

PART A: Day-15/-2; Day-1 to Day4; Day 8; Day15 - PART B: Day-15/-2 to Day18; Day30
Change in vital sign - BP
時間枠:PART A: Day-1 to Day4; Day 8; - PART B: Day-15/-2 to Day15; Day18

Tolerability will be evaluated throught the change in Blood preassure from baseline

PART A: Day-1 to Day4; Day 8; - PART B: Day-15/-2 to Day15; Day18
Change in vital sign - HR
時間枠:PART A: Day-1 to Day4; Day 8; - PART B: Day-15/-2 to Day15; Day18

Tolerability will be evaluated throught the change in Heart rate from baseline

PART A: Day-1 to Day4; Day 8; - PART B: Day-15/-2 to Day15; Day18

二次結果の測定

結果測定
メジャーの説明
時間枠
Plasma BAR502 - Study Part A
時間枠:Day1 (pre- and post- dose), Day2, Day3, Day4

Plasma BAR502 concentration-time profile after IMP single dose administration

Day1 (pre- and post- dose), Day2, Day3, Day4
Urine BAR502 - Study Part A
時間枠:Day1 (pre- and post- dose), Day2, Day3

Urine BAR502 concentration-time profile after IMP single dose administration

Day1 (pre- and post- dose), Day2, Day3
Plasma BAR505 - Study Part A
時間枠:Day1 (pre- and post- dose), Day2, Day3, Day4

Plasma BAR505 concentration-time profiles after IMP single dose administration

Day1 (pre- and post- dose), Day2, Day3, Day4
Urine BAR505 - Study Part A
時間枠:Day1 (pre- and post- dose), Day2, Day3

Urine BAR505 concentration-time profiles after IMP single dose administration

Day1 (pre- and post- dose), Day2, Day3
Plasma BAR502 PK: Cmax - Study Part A
時間枠:Day1 (pre- and post- dose), Day2, Day3, Day4

Plasma BAR502 Cmax value after IMP single dose administration

Day1 (pre- and post- dose), Day2, Day3, Day4
Plasma BAR502 PK: t_max - Study Part A
時間枠:Day1 (pre- and post- dose), Day2, Day3, Day4

Plasma BAR502 t_max value after IMP single dose administration

Day1 (pre- and post- dose), Day2, Day3, Day4
Plasma BAR502 PK: AUC0-t - Study Part A
時間枠:Day1 (pre- and post- dose), Day2, Day3, Day4

Plasma BAR502 AUC0-t value after IMP single dose administration

Day1 (pre- and post- dose), Day2, Day3, Day4
Urine BAR502 PK: Ae0-t - Study Part A
時間枠:Day1 (pre- and post- dose), Day2, Day3

Urine BAR502 Ae0-t value after IMP single dose administration

Day1 (pre- and post- dose), Day2, Day3
Urine BAR502 PK: Fe0-t - Study Part A
時間枠:Day1 (pre- and post- dose), Day2, Day3

Urine BAR502 Fe0-t value after IMP single dose administration

Day1 (pre- and post- dose), Day2, Day3
Urine BAR502 PK: Rmax - Study Part A
時間枠:Day1 (pre- and post- dose), Day2, Day3

Urine BAR502 Rmax value after IMP single dose administration

Day1 (pre- and post- dose), Day2, Day3
Urine BAR502 PK: AUR_Clast - Study Part A
時間枠:Day1 (pre- and post- dose), Day2, Day3

Urine BAR502 AUR_Clast value after IMP single dose administration

Day1 (pre- and post- dose), Day2, Day3
Urine BAR502 PK: REC% - Study Part A
時間枠:Day1 (pre- and post- dose), Day2, Day3

Urine BAR502 REC% value after IMP single dose administration

Day1 (pre- and post- dose), Day2, Day3
Urine BAR502 PK: tu_max - Study Part A
時間枠:Day1 (pre- and post- dose), Day2, Day3

Urine BAR502 tu_max value after IMP single dose administration

Day1 (pre- and post- dose), Day2, Day3
Urine BAR502 PK: Cl_r r - Study Part A
時間枠:Day1 (pre- and post- dose), Day2, Day3

Urine BAR502 Cl_r r value after IMP single dose administration

Day1 (pre- and post- dose), Day2, Day3
Serum biomarker FGF19 - Study Part A
時間枠:Day1 (pre- and post- dose), Day2, Day3

Serum FGF19 baseline-corrected concentration-time profile after IMP single dose administration

Day1 (pre- and post- dose), Day2, Day3
Serum biomarker C4 - Study Part A
時間枠:Day1 (pre- and post- dose), Day2, Day3

Serum C4 baseline-corrected concentration-time profile and PD parameters after IMP single dose administration

Day1 (pre- and post- dose), Day2, Day3
Serum biomarker GLP-1 - Study Part A
時間枠:Day1 (pre- and post- dose), Day2, Day3

Serum GLP-1 baseline-corrected concentration-time profile after IMP single dose administration

Day1 (pre- and post- dose), Day2, Day3
Serum PD: Cb_max - Study Part A
時間枠:Day1 (pre- and post- dose), Day2, Day3

Serum Cb_max value after IMP single dose administration

Day1 (pre- and post- dose), Day2, Day3
Serum PD: Cb_min - Study Part A
時間枠:Day1 (pre- and post- dose), Day2, Day3

Serum Cb_min value after IMP single dose administration

Day1 (pre- and post- dose), Day2, Day3
Serum PD: tb_max - Study Part A
時間枠:Day1 (pre- and post- dose), Day2, Day3

Serum PD tb_max value after IMP single dose administration

Day1 (pre- and post- dose), Day2, Day3
Serum PD: tb_min - Study Part A
時間枠:Day1 (pre- and post- dose), Day2, Day3

Serum tb_min value after IMP single dose administration

Day1 (pre- and post- dose), Day2, Day3
Serum PD: AUbC_0-24 - Study Part A
時間枠:Day1 (pre- and post- dose), Day2, Day3

Serum AUbC_0-24 value after IMP single dose administration

Day1 (pre- and post- dose), Day2, Day3
Serum PD: partial AUbC - Study Part A
時間枠:Day1 (pre- and post- dose), Day2, Day3

Serum partial AUbC value after IMP single dose administration

Day1 (pre- and post- dose), Day2, Day3
Serum total bile acids - Study Part A
時間枠:Day1 (pre- and post- dose), Day2, Day3

Serum total bile acids baseline-corrected concentration-time profiles after IMP single dose administration

Day1 (pre- and post- dose), Day2, Day3
Plasma BAR502 concentration - Study Part B
時間枠:daily from Day1 to Day14 (pre- and post- dose); Day15 to Day18

Plasma BAR502 concentration-time profile after IMP multiple dose

daily from Day1 to Day14 (pre- and post- dose); Day15 to Day18
Plasma BAR505 concentration - Study Part B
時間枠:daily from Day1 to Day14 (pre- and post- dose); Day15 to Day18

Plasma BAR505 concentration-time profile after IMP multiple dose

daily from Day1 to Day14 (pre- and post- dose); Day15 to Day18
Plasma BAR502 PK: Cmax - Study Part B
時間枠:daily from Day1 to Day14 (pre- and post- dose); Day15 to Day18

Plasma BAR502 Cmax value after IMP multiple dose

daily from Day1 to Day14 (pre- and post- dose); Day15 to Day18
Plasma BAR502 PK: t_max - Study Part B
時間枠:daily from Day1 to Day14 (pre- and post- dose); Day15 to Day18

Plasma BAR502 t_max value after IMP multiple dose

daily from Day1 to Day14 (pre- and post- dose); Day15 to Day18
Plasma BAR502 PK: AUC_0-24 - Study Part B
時間枠:daily from Day1 to Day14 (pre- and post- dose); Day15 to Day18

Plasma BAR502 AUC_0-24 value after IMP multiple dose

daily from Day1 to Day14 (pre- and post- dose); Day15 to Day18
Plasma BAR502 PK: AUC_0-t - Study Part B
時間枠:daily from Day1 to Day14 (pre- and post- dose); Day15 to Day18

Plasma BAR502 AUC_0-t value after IMP multiple dose

daily from Day1 to Day14 (pre- and post- dose); Day15 to Day18
Serum biomarker GLP-1 - Study Part B
時間枠:daily from Day1 to Day14 (pre- and post- dose); Day15 to Day17

Serum GLP-1 baseline-corrected concentration-time profile after IMP multiple dose

daily from Day1 to Day14 (pre- and post- dose); Day15 to Day17
Serum biomarker C4 - Study Part B
時間枠:daily from Day1 to Day14 (pre- and post- dose); Day15 to Day17

Serum C4 baseline-corrected concentration-time profile after IMP multiple dose

daily from Day1 to Day14 (pre- and post- dose); Day15 to Day17
Serum biomarker FGF19 - Study Part B
時間枠:daily from Day1 to Day14 (pre- and post- dose); Day15 to Day17

Serum FGF19 baseline-corrected concentration-time profile after IMP multiple dose

daily from Day1 to Day14 (pre- and post- dose); Day15 to Day17
Serum PD: Cb_max - Study Part B
時間枠:daily from Day1 to Day14 (pre- and post- dose); Day15 to Day17

Serum Cb_max value after IMP multiple dose

daily from Day1 to Day14 (pre- and post- dose); Day15 to Day17
Serum PD: Cb_min - Study Part B
時間枠:daily from Day1 to Day14 (pre- and post- dose); Day15 to Day17

Serum Cb_min value after IMP multiple dose

daily from Day1 to Day14 (pre- and post- dose); Day15 to Day17
Serum PD: tb_max - Study Part B
時間枠:daily from Day1 to Day14 (pre- and post- dose); Day15 to Day17

Serum tb_max value after IMP multiple dose

daily from Day1 to Day14 (pre- and post- dose); Day15 to Day17
Serum PD: tb_min - Study Part B
時間枠:daily from Day1 to Day14 (pre- and post- dose); Day15 to Day17

Serum tb_min after IMP multiple dose

daily from Day1 to Day14 (pre- and post- dose); Day15 to Day17
Serum PD: AUbC_0-24 - Study Part B
時間枠:daily from Day1 to Day14 (pre- and post- dose); Day15 to Day17

Serum AUbC_0-24 value after IMP multiple dose

daily from Day1 to Day14 (pre- and post- dose); Day15 to Day17
Serum PD: partial AUbC - Study Part B
時間枠:daily from Day1 to Day14 (pre- and post- dose); Day15 to Day17

Serum partial AUbC value after IMP multiple dose

daily from Day1 to Day14 (pre- and post- dose); Day15 to Day17
Serum total bile acids - Study Part B
時間枠:Daily from Day1 to Day17

Serum total bile acids baseline-corrected concentration-time profiles after after IMP multiple dose

Daily from Day1 to Day17
Change in body weight
時間枠:PART A: Day1; Day 8 - PART B: Day1; Day18; Day30

Change in body weight from baseline after single and multiple IMP dose

PART A: Day1; Day 8 - PART B: Day1; Day18; Day30
Check for Physical abnormalities
時間枠:PART A: Day1; Day 8 - PART B: Day1; Day18; Day30

Change in Physical examination from baseline after single and multiple IMP dose

PART A: Day1; Day 8 - PART B: Day1; Day18; Day30
hepatic parameters: AST
時間枠:PART A: Day2; Day3; Day 8; - PART B: daily from Day2 to Day13; Day15; Day18

Change from baseline in AST value after single and multiple IMP dose

PART A: Day2; Day3; Day 8; - PART B: daily from Day2 to Day13; Day15; Day18
hepatic parameters: ALT
時間枠:PART A: Day2; Day3; Day 8; - PART B: daily from Day2 to Day13; Day15; Day18

Change from baseline in ALT value after single and multiple IMP dose

PART A: Day2; Day3; Day 8; - PART B: daily from Day2 to Day13; Day15; Day18
hepatic parameters: Total bilirubin
時間枠:PART A: Day2; Day3; Day 8; - PART B: daily from Day2 to Day13; Day15; Day18

Change from baseline in Total bilirubin value after single and multiple IMP dose

PART A: Day2; Day3; Day 8; - PART B: daily from Day2 to Day13; Day15; Day18
hepatic parameters: Direct bilirubin
時間枠:PART A: Day2; Day3; Day 8; - PART B: daily from Day2 to Day13; Day15; Day18

Change from baseline in Direct bilirubin value after single and multiple IMP dose

PART A: Day2; Day3; Day 8; - PART B: daily from Day2 to Day13; Day15; Day18
hepatic parameters: Indirect bilirubin
時間枠:PART A: Day2; Day3; Day 8; - PART B: daily from Day2 to Day13; Day15; Day18

Change from baseline in Indirect bilirubin value after single and multiple IMP dose

PART A: Day2; Day3; Day 8; - PART B: daily from Day2 to Day13; Day15; Day18
hepatic parameters: Total cholesterol
時間枠:PART A: Day2; Day3; Day 8; - PART B: daily from Day2 to Day13; Day15; Day18

Change from baseline in Total cholesterol value after single and multiple IMP dose

PART A: Day2; Day3; Day 8; - PART B: daily from Day2 to Day13; Day15; Day18
hepatic parameters: HDL cholesterol
時間枠:PART A: Day2; Day3; Day 8; - PART B: daily from Day2 to Day13; Day15; Day18

Change from baseline in HDL cholesterol value after single and multiple IMP dose

PART A: Day2; Day3; Day 8; - PART B: daily from Day2 to Day13; Day15; Day18
hepatic parameters: LDL cholesterol
時間枠:PART A: Day2; Day3; Day 8; - PART B: daily from Day2 to Day13; Day15; Day18

Change from baseline in LDL cholesterol value after single and multiple IMP dose

PART A: Day2; Day3; Day 8; - PART B: daily from Day2 to Day13; Day15; Day18
Change in Gallbladder contraction - Study Part B
時間枠:daily from Day2 to Day13; Day15

Change from baseline in Gallbladder contraction after IMP multiple dose

daily from Day2 to Day13; Day15
Change in Gallbladder volume - Study Part B
時間枠:daily from Day2 to Day13; Day15

Change from baseline in Gallbladder volume after IMP multiple dose

daily from Day2 to Day13; Day15
Change in ECG trace: PR
時間枠:PART A: daily from Day1 to Day 4 - PART B: daily from Day to Day15

Change from baseline in ECG trace PR interval value after single and multiple IMP dose

PART A: daily from Day1 to Day 4 - PART B: daily from Day to Day15
Change in ECG trace: QRS
時間枠:PART A: daily from Day1 to Day 4 - PART B: daily from Day to Day15

Change from baseline in ECG trace QRS interval value after single and multiple IMP dose

PART A: daily from Day1 to Day 4 - PART B: daily from Day to Day15
Change in ECG trace: QT
時間枠:PART A: daily from Day1 to Day 4 - PART B: daily from Day to Day15

Change from baseline in ECG trace QT interval value after single and multiple IMP dose

PART A: daily from Day1 to Day 4 - PART B: daily from Day to Day15
Change in ECG trace: QTcB
時間枠:PART A: daily from Day1 to Day 4 - PART B: daily from Day to Day15

Change from baseline in ECG trace QT interval corrected with Bazett's formula after single and multiple IMP dose

PART A: daily from Day1 to Day 4 - PART B: daily from Day to Day15
Change in ECG trace: QTcF
時間枠:PART A: daily from Day1 to Day 4 - PART B: daily from Day to Day15

Change from baseline in ECG trace QT interval corrected with Fridericia's formula after single and multiple IMP dose

PART A: daily from Day1 to Day 4 - PART B: daily from Day to Day15
Change in ECG: Heart rate
時間枠:PART A: daily from Day1 to Day 4 - PART B: daily from Day to Day15

Change from baseline in ECG Heart rate after single and multiple IMP dose

PART A: daily from Day1 to Day 4 - PART B: daily from Day to Day15

協力者と研究者

ここでは、この調査に関係する人々や組織を見つけることができます。

スポンサー

捜査官

  • 主任研究者:Milko Radicioni, MD、CROSS Research S.A., Phase I Unit

研究記録日

これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。

主要日程の研究

研究開始 (実際)

2024年12月4日

一次修了 (実際)

2026年6月3日

研究の完了 (実際)

2026年6月3日

試験登録日

最初に提出

2024年8月23日

QC基準を満たした最初の提出物

2024年11月22日

最初の投稿 (実際)

2024年11月26日

学習記録の更新

投稿された最後の更新 (実際)

2026年9月21日

QC基準を満たした最後の更新が送信されました

2026年9月16日

最終確認日

2026年9月1日

詳しくは

本研究に関する用語

その他の研究ID番号

  • BAR-502-001

個々の参加者データ (IPD) の計画

個々の参加者データ (IPD) を共有する予定はありますか?

いいえ

医薬品およびデバイス情報、研究文書

米国FDA規制医薬品の研究

いいえ

米国FDA規制機器製品の研究

いいえ

この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。