17th annual worldsymposium 2021

27
Copyright © 2021 JCR Pharmaceuticals Co., Ltd. All rights reserved. Confidential 17th Annual WORLDSymposium TM 2021 における発表内容説明会 202131JCRファーマ株式会社

Upload: others

Post on 31-Dec-2021

1 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: 17th Annual WORLDSymposium 2021

Copyright © 2021 JCR Pharmaceuticals Co., Ltd. All rights reserved.

Confidential

17th Annual WORLDSymposiumTM 2021における発表内容説明会

2021年3月1日JCRファーマ株式会社

Page 2: 17th Annual WORLDSymposium 2021

Copyright © 2021 JCR Pharmaceuticals Co., Ltd. All rights reserved.

Confidential

重症型MPSII兄弟例における発達評価の比較-既存ERTと新規ERT治療-

2021年3月1日

Page 3: 17th Annual WORLDSymposium 2021

Copyright © 2021 JCR Pharmaceuticals Co., Ltd. All rights reserved.

Confidential

2

Developmental Trajectories of the siblings

Age equivalent scores (AE) of sibling 2 remained normal and exceeded 42 months

Page 4: 17th Annual WORLDSymposium 2021

Copyright © 2021 JCR Pharmaceuticals Co., Ltd. All rights reserved.

ConfidentialTime-course Changes in the CSF HS Concentrations in Sibling 2

3

Baseline CSF HS levels differentiate patients between severeand attenuated phenotype

Treatment with JR-141 reduced CSF HS levels in Sibling 2 by63.6% and to a level typical for attenuated patients

Baseline CSF HS Levels in the patients in the phase II/III study CSF HS Levels after JR-141 treatment in sibling 2

Page 5: 17th Annual WORLDSymposium 2021

Copyright © 2021 JCR Pharmaceuticals Co., Ltd. All rights reserved.

ConfidentialSummary

4

• 同一遺伝子変異(重症型)の兄弟例の発達に係る報告

• 3歳11ヵ月時点の兄の発達スコア(DQ)は54であったのに対し、JR-141の治療を受けた弟は同時期に104と、正常発達を継続している

• 発達年齢(AE)は正常であり42ヵ月を超えている (自然歴調査を上回る)

• CSF中のヘパラン硫酸は、JR-141開始52週後に63.6%減少した

• 上記のデータは早期診断とJR-141の早期治療の重要性を示すものである

Page 6: 17th Annual WORLDSymposium 2021

Copyright © 2021 JCR Pharmaceuticals Co., Ltd. All rights reserved.

Confidential

JR-141の神経発達に対する効果について-日本・ブラジル 52週・104週のデータから-

2021年3月1日

Page 7: 17th Annual WORLDSymposium 2021

Copyright © 2021 JCR Pharmaceuticals Co., Ltd. All rights reserved.

ConfidentialTrial Design and Objectives

6

Page 8: 17th Annual WORLDSymposium 2021

Copyright © 2021 JCR Pharmaceuticals Co., Ltd. All rights reserved.

ConfidentialKyoto Scale Developmental Assessment (KSPD)at week 52 or 104 week in (JR-141-301)

7

Page 9: 17th Annual WORLDSymposium 2021

Copyright © 2021 JCR Pharmaceuticals Co., Ltd. All rights reserved.

ConfidentialBayley Scales Developmental Assessment (BSID-III)at week 52 or 104 (JR-141-301 and JR-141-BR22)

8

Page 10: 17th Annual WORLDSymposium 2021

Copyright © 2021 JCR Pharmaceuticals Co., Ltd. All rights reserved.

ConfidentialComparison between KSPD vs BSID at Baseline, week 25, 52 and 104 (JR-141-301)

9

Page 11: 17th Annual WORLDSymposium 2021

Copyright © 2021 JCR Pharmaceuticals Co., Ltd. All rights reserved.

ConfidentialKaufman (KABC II) Assessment in Attenuated Patients at Week 52 and 104 (JR-141-BR22)

10

Page 12: 17th Annual WORLDSymposium 2021

Copyright © 2021 JCR Pharmaceuticals Co., Ltd. All rights reserved.

ConfidentialVineland-II Adaptive Behavior Scale analysis at Week 52 (JR-141-301 and JR-141-BR22)

11

Page 13: 17th Annual WORLDSymposium 2021

Copyright © 2021 JCR Pharmaceuticals Co., Ltd. All rights reserved.

ConfidentialNarrative Reports (JR-141-301 and JR-141-BR22)

12

Page 14: 17th Annual WORLDSymposium 2021

Copyright © 2021 JCR Pharmaceuticals Co., Ltd. All rights reserved.

ConfidentialSummary

13

• 新版K式:JR-141-301/302試験において、52週または104週時点で大部分の被験者で発達年齢の改善または安定化が認められた。1名(JP-08-03)は104週時点で正常発達を継続している

• Bayley: 日本・ブラジルの試験において、 52週または104週時点で大部分の被験者で発達年齢の改善または安定化が認められた

• 新版K式とBayleyのAEは良好に相関した

• 日本・ブラジルでは承認申請を完了

• グローバル第III相試験は2021年に開始予定(Brazil, Germany, France, UK and US)

Page 15: 17th Annual WORLDSymposium 2021

Copyright © 2021 JCR Pharmaceuticals Co., Ltd. All rights reserved.

Confidential

JR-141治療後の脳脊髄液中ヘパラン硫酸の減少-日本・ブラジルのデータから-

2021年3月1日

Page 16: 17th Annual WORLDSymposium 2021

Copyright © 2021 JCR Pharmaceuticals Co., Ltd. All rights reserved.

ConfidentialDisease Severity and CSF HS Levels at Baseline in JR-141-101 (Ph I/II) and JR-141-301 Studies

15

Page 17: 17th Annual WORLDSymposium 2021

Copyright © 2021 JCR Pharmaceuticals Co., Ltd. All rights reserved.

ConfidentialCSF HS Concentrations in JR-141-301/302 and JR-141-BR21/22 Studies *

16

Conclusions• CSF HS concentrations decreased in all subjects in the 2.0 and 4.0 mg/kg groups• CSF HS concentrations decreased in most subjects to < 4,000 ng / mL, a level

typical for attenuated subjects

* Patients received JR-141 at a dose of 2 or 4 mg/kg/week for one year or longer

Page 18: 17th Annual WORLDSymposium 2021

Copyright © 2021 JCR Pharmaceuticals Co., Ltd. All rights reserved.

ConfidentialChanges in CSF HS Levels through JR-141-101 and JR-141-301 Studies

17

Page 19: 17th Annual WORLDSymposium 2021

Copyright © 2021 JCR Pharmaceuticals Co., Ltd. All rights reserved.

ConfidentialChanges in Age-equivalent Scores of Severe Subjects in JR-141-301 and JR-141-BR21 Studies

18

Page 20: 17th Annual WORLDSymposium 2021

Copyright © 2021 JCR Pharmaceuticals Co., Ltd. All rights reserved.

ConfidentialReduction of Liver Volume from Baseline to 52 weeks in Subjects in JR-141-301 and JR-141-BR21 Studies

19

Page 21: 17th Annual WORLDSymposium 2021

Copyright © 2021 JCR Pharmaceuticals Co., Ltd. All rights reserved.

ConfidentialEffect of Anti-JR-141 Antibody Development on CSF HS Concentration Upon Treatment with JR-141

20

Page 22: 17th Annual WORLDSymposium 2021

Copyright © 2021 JCR Pharmaceuticals Co., Ltd. All rights reserved.

ConfidentialSummary

21

安全性・有効性• JR-141の安全性は複数試験の長期データより示された• CSF中のヘパラン硫酸は 2.0 または 4.0 mg/kgの全例で減少した• 抗薬物抗体のCSFヘパラン硫酸の減少に対する明確な影響は認められなかった• 87%の被験者で発達年齢の改善または安定化が認められ、CSF中のヘパラン硫酸減少

との相関が認められた

バイオマーカーとしてのヘパラン硫酸• CSF中ヘパラン硫酸は重症度を反映するバイオマーカーである• CSF中のヘパラン硫酸のレベルを4,000 ng/ml未満に維持することが中枢神経症状を

抑える指標となりうる

Page 23: 17th Annual WORLDSymposium 2021

Copyright © 2021 JCR Pharmaceuticals Co., Ltd. All rights reserved.

Confidential

Page 24: 17th Annual WORLDSymposium 2021

Copyright © 2021 JCR Pharmaceuticals Co., Ltd. All rights reserved.

ConfidentialStudy Design, Objectives & Methods

23

Page 25: 17th Annual WORLDSymposium 2021

Copyright © 2021 JCR Pharmaceuticals Co., Ltd. All rights reserved.

ConfidentialStudy Design, Objectives & Methods

24

Page 26: 17th Annual WORLDSymposium 2021

Copyright © 2021 JCR Pharmaceuticals Co., Ltd. All rights reserved.

ConfidentialTime-course Changes MPS II Symptoms of the Siblings

25

Age Sibling 1 Sibling 210m • Walks alone1yr • Utterance of one-word sentence1yr 8m • Walks alone

2yr • Utterance of one-wordsentence

2yr 4m• Delays in language• Mild Ventriculomegaly and

brain atrophy

2yr 8m• Difficulty in concentration• Deterioration of the motor and

cognitive function

2yr 11m • Utterance of two-word sentence

3yr 11m • Utterance of two word sentence

5yr• Mild Ventriculomegaly and

Brain atrophy (no exacerbation)

There were no obvious somatic symptoms in sibling 2

Page 27: 17th Annual WORLDSymposium 2021

Copyright © 2021 JCR Pharmaceuticals Co., Ltd. All rights reserved.

ConfidentialPatients’ Background

26

Sibling 1 Sibling 2

Genetic mutation IDS c.419 G>T, p.G140VGGG(Gly)→GTV(Val)

Diagnosis of MPS-II Made at the age of 2yr 4m Made prenatally

Conventional ERT with Elaprase

Initiated from 2yr 4m of age until now (9 yr)

Initiated from 1m of age, continued until 1yr 11m , then switched to JR-141

Treatment with JR-141 N/A Initiated from 1yr 11m until

now (4yr)

Past history

Inguinal herniaHydrocele testisMixed hearing lossAdenoid vegetationChronic sinusitisSleep apnea

Inguinal herniaExudative otitis mediaAdenoid vegetation