アラジール症候群患者におけるオデビキシバットの長期的な安全性と有効性 (ASSERT-EXT)
アラジール症候群患者におけるオデビキシバット(A4250)の長期的な安全性と有効性を評価する非盲検試験(ASSERT-EXT)
The purpose of this study is to assess the long-term safety and effectiveness of odevixibat in participants with Alagille syndrome (ALGS).
The participants of this study will have ALGS a rare genetic disorder that can affect multiple organ systems of the body including the liver, heart, skeleton, eyes and kidneys. Common symptoms, which often develop during the first three months of life, include blockage of the flow of bile from the liver (cholestasis), yellowing of the skin and mucous membranes (jaundice), poor weight gain and growth and severe itching (pruritis).
The drug used for the study is odevixibat and was authorized for the treatment of cholestatic pruritus in infants with ALGS over 12 months of age by the United States Food and Drug Administration on 13 June 2023.
調査の概要
詳細な説明
This Phase 3, open-label, multi-center extension study will have two groups of participants: Cohort 1 (participants who participated in Study A4250-012 [NCT04674761; ASSERT] and meet the entry criteria for this study) and Cohort 2 (infants under 12 months of age) with ALGS.
The study will consist of 2 or 3 periods:
- A 'Treatment period' of 72 weeks (cohort 1) or 12 weeks (cohort 2). Participants will visit the clinic every 4 to 12 weeks and will receive a dose of 120 μg/kg odevixibat daily.
- An 'Optional extension period' where participants who wish to continue receiving odevixibat after the 'treatment period' will have the opportunity to remain on treatment with visits every 16 weeks until the drug is commercially available. The optional extension is available provided continued use is supported by the risk-benefit profile, the participant has not been previously withdrawn or discontinued from the study, and the study is not terminated by the Sponsor.
- A 'Safety follow-up period' of 4 weeks (cohort 1) or 2 weeks (cohort 2). The Safety Follow-up Period will not occur for those who remain on treatment in the optional extension period.
Participants will need to complete an e-diary and questionnaires throughout the study (cohort 1 only). Participants will undergo blood samplings, urine collections (cohort 1 only), physical examinations, and clinical evaluations. They may continue some other medications, but the details need to be recorded.
研究の種類
入学 (実際)
段階
- フェーズ 3
連絡先と場所
研究場所
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California
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San Diego、California、アメリカ、92123
- Rady Children's Hospital
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San Francisco、California、アメリカ、94158
- UCSF
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Georgia
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Atlanta、Georgia、アメリカ、30329
- Children's Healthcare of Atlanta
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Indiana
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Indianapolis、Indiana、アメリカ、46202
- Riley Hospital for Children at IU Health
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Maryland
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Baltimore、Maryland、アメリカ、21287
- Johns Hopkins Hospital
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Massachusetts
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Boston、Massachusetts、アメリカ、02115
- Boston Children's Hospital
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Missouri
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Kansas City、Missouri、アメリカ、64018
- Children's Mercy Hospital and Clinics
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New York
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New Hyde Park、New York、アメリカ、11042
- Northwell Health System
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New York、New York、アメリカ、10016
- Hassenfeld Children's Hospital at NYU Langone
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New York、New York、アメリカ、10032
- New York-Presbyterian / Columbia University Irving Medical Center
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The Bronx、New York、アメリカ、10467
- The Childrens Hospital at Montefiore Albert Einstein School of Medicine
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North Carolina
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Durham、North Carolina、アメリカ、27710
- Atrium Health Carolinas Medical
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Ohio
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Cincinnati、Ohio、アメリカ、45229
- Cincinnati Children's Hospital
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Oregon
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Portland、Oregon、アメリカ、97239
- Oregon Health Science University School of Medicine
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Tennessee
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Nashville、Tennessee、アメリカ、37232
- Monroe Carell Jr. Childrens Hospital at Vanderbilt
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Texas
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Dallas、Texas、アメリカ、75207
- Childrens Medical Center of Dallas University of Texas Southwestern
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Houston、Texas、アメリカ、77030
- Texas Children's Hospital
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San Antonio、Texas、アメリカ、78215
- Texas Liver Institute
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Birmingham、イギリス
- Birmingham Women's and Children's NHS Foundation Trust
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London、イギリス、SE5 9RS
- King's College Hospital NHS Foundation Trust King's College Hospital Paediatric Research
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Florence、イタリア
- AOU Meyer
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Padova、イタリア、35128
- Azienda Ospedale University
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Rome、イタリア、00165
- Ospedale Pediatrico Bambino Gesu
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Groningen、オランダ、9713 GZ
- Universitair Medisch Centrum Groningen
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Utrecht、オランダ
- Wilhelmina Children's Hospital UMCU Utrecht
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Istanbul、トルコ(Türkiye)
- Istanbul University Istanbul Medical Faculty Hospital
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Berlin、ドイツ、13353
- Charité - Universitätsmedizin Berlin
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Hanover、ドイツ、30625
- Medizinische Hochschul
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Tübingen、ドイツ、72076
- Universitatsklinik fur Kinder-und Jugendmedizin Tubingen
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Bron、フランス、69677
- Hôpital Femme Mère Enfant de Lyon
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Lille、フランス
- Antenne pediatrique du CIC-Hopital Jeanne De Flandre
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Paris、フランス、75015
- Hopital Necker Enfants Malades
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Brussels、ベルギー、1200
- Cliniques Universitaires Saint-Luc Bruxelles
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Warsaw、ポーランド、04-730
- Instytut Pomnik-Centrum Zdrowia Dzieck
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Kuala Lumpur、マレーシア、59100
- University of Malaya Medical Center
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参加基準
適格基準
就学可能な年齢
- 子
- 大人
- 高齢者
健康ボランティアの受け入れ
受講資格のある性別
説明
Inclusion Criteria:
Cohort 1 :
- Completion of the 24-week Treatment Period of Study A4250-012
- Signed informed consent and assent as appropriate. Patients who turn 18 years of age (or legal age per country) during the study will be required to re-consent to remain on the study
- Caregivers (and age-appropriate patients) must be willing and able to use an electronic diary (eDiary) device as required by the study
- Sexually active males and females must agree to use a reliable contraceptive method with ≤1% failure rate (such as hormonal contraception, intra-uterine device, or complete abstinence) from signed informed consent through 90 days after last dose of study drug.
Cohort 2 :
- Infant with clinically confirmed ALGS , ≤11 months of age at Study Day 1
- Body weight ≥2 kg at Study Day 1
- Gestational age ≥36 weeks. For children born with gestational age between 32 and 36 weeks, a postmenstrual age of ≥36 weeks is required .
- Signed parent/legal guardian informed consent.
Exclusion Criteria:
Cohort 1 :
- Decompensated liver disease, history or presence of clinically significant ascites, variceal hemorrhage, and/or encephalopathy
- Patients who were not compliant with study drug treatment or procedures in Study A4250-012
- Any other conditions or abnormalities which, in the opinion of the investigator, may compromise the safety of the patient, or interfere with the patient participating in or completing the study
- Known hypersensitivity to any components of odevixibat
Cohort 2 :
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Patient with past medical history or ongoing presence of other types of liver disease including, but not limited to, the following:
- Biliary atresia of any kind
- Progressive familial intrahepatic cholestasis (PFIC)
- Benign recurrent intrahepatic cholestasis
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Patient with a past medical history or ongoing presence of any other disease or condition known to interfere with the absorption, distribution, metabolism (specifically bile acid metabolism), or excretion of drugs in the intestine, including but not limited to, inflammatory bowel disease
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Patient with past medical history or ongoing chronic diarrhea requiring intravenous fluid or nutritional intervention for treatment of the diarrhea and/or its sequelae
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Patient has a confirmed past diagnosis of infection with human immunodeficiency virus or other present and active, clinically significant chronic infection
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Recent infection requiring hospitalization or treatment with parenteral anti-infective within 4 weeks of Study Day 1 or completion of oral anti-infective treatment within 2 weeks prior to the Screening Visit
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Cancer diagnosis (except for basal cell carcinoma)
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Chronic kidney disease with an impaired renal function and a glomerular filtration rate <70 mL/min/1.73 m2
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Patient with surgical history of disruption of the enterohepatic circulation (biliary diversion surgery) within 6 months prior to the Screening Visit
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Patient has had a liver transplant, or a liver transplant is planned within 6 months of Study Day 1
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Decompensated liver disease, history or presence of clinically significant ascites, variceal hemorrhage, and/or encephalopathy
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International normalized ratio (INR) >1.4 (the patient may be treated with Vitamin K, and if INR is ≤1.4 at resampling the patient may be enrolled)
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Serum alanine aminotransferase (ALT) >10 × upper limit of normal (ULN) at Screening
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Serum ALT >15 × ULN at any time point during the last 6 months unless an alternate etiology was confirmed for the elevation
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Total bilirubin >15 × ULN at Screening
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Patient suffers from uncontrolled, recalcitrant pruritic condition other than ALGS. Examples include, but not limited to, refractory atopic dermatitis or other primary pruritic skin diseases.
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Patient exposed to alcohol or substance abuse in utero
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Bile acid or lipid binding resins and medications that slow gastrointestinal motility
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Patient has had investigational exposure to a drug, biologic agent, or medical device within 30 days prior to the Screening Visit, or 5 half-lives of the study agent, whichever is longer
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Any other conditions or abnormalities which, in the opinion of the investigator may compromise the safety of the patient, or interfere with the patient participating in or completing the study
研究計画
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:処理
- 割り当て:なし
- 介入モデル:単一グループの割り当て
- マスキング:なし(オープンラベル)
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
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実験的:Odevixibat (A4250)
Capsules for oral administration once daily for 72 weeks. |
Odevixibat is a small molecule and selective inhibitor of IBAT.
他の名前:
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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 |
|---|---|---|
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併用薬のベースラインからの変化。
時間枠:ベースラインから 12 週目 (コホート 2)。
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ベースラインから 12 週目 (コホート 2)。
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脂溶性ビタミンレベルのベースラインからの変化。
時間枠:ベースラインから 12 週目 (コホート 2)。
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ベースラインから 12 週目 (コホート 2)。
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Change from baseline in pruritus
時間枠:Baseline to week 72 (cohort 1).
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Assessed as change in scratching score as measured by measured by the Albireo Observer-Reported Outcome Caregiver Instrument. |
Baseline to week 72 (cohort 1).
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Percentage of participants with Treatment Emergent Adverse Event (TEAEs) and Serious Adverse Events (SAEs)
時間枠:Baseline to week 12 (cohort 2).
|
An Adverse event (AE) is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. A serious adverse event (SAE) is an AE that results in any of following outcomes: death; life threatening; persistent/significant disability/incapacity; initial or prolonged inpatient hospitalization; congenital anomaly/birth defect or was otherwise considered medically important. Treatment-emergent adverse events. TEAEs included both Serious TEAEs and non-serious TEAEs. |
Baseline to week 12 (cohort 2).
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Percentage of participants with clinically significant changes from baseline in Physical Examination
時間枠:Baseline to week 12 (cohort 2).
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The clinical significance will be graded by the investigator. |
Baseline to week 12 (cohort 2).
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Percentage of participants with clinically significant changes in Laboratory Parameters
時間枠:Baseline to week 12 (cohort 2).
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The following laboratory parameters will be reported: blood chemistry, hematology and coagulation. The clinical significance will be graded by the investigator. |
Baseline to week 12 (cohort 2).
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Percentage of participants with clinically significant changes from baseline in Vital Signs.
時間枠:Baseline to week 12 (cohort 2).
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The clinical significance will be graded by the investigator. |
Baseline to week 12 (cohort 2).
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二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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血清胆汁酸レベルのベースラインからの変化
時間枠:ベースラインから 72 週目 (コホート 1)。
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ベースラインから 72 週目 (コホート 1)。
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血清胆汁酸レベルのベースラインからの変化。
時間枠:72週目までのベースライン(コホート1)。
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72週目までのベースライン(コホート1)。
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健康診断のベースラインからの変化があった参加者数
時間枠:ベースラインから 72 週目 (コホート 1)。
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ベースラインから 72 週目 (コホート 1)。
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バイタルサインがベースラインから変化した参加者の数
時間枠:ベースラインから 72 週目 (コホート 1)。
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ベースラインから 72 週目 (コホート 1)。
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併用薬のベースラインからの変化
時間枠:ベースラインから 72 週目 (コホート 1)。
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ベースラインから 72 週目 (コホート 1)。
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臨床検査結果のベースラインからの変化薬物動態 (PK) Cmax [期間: 1 日目、4 週目、8 週目、および 12 週目]
時間枠:ベースラインから 72 週目 (コホート 1)。
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ベースラインから 72 週目 (コホート 1)。
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治験薬の血漿濃度のベースラインからの変化
時間枠:1日目、4週目、8週目、および12週目(コホート1)。
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1日目、4週目、8週目、および12週目(コホート1)。
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薬力学的パラメーター: 血清胆汁酸レベルの変化
時間枠:12週目までのベースライン(コホート2)。
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12週目までのベースライン(コホート2)。
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Change from baseline in patient reported and observer reported itching and scratching severity scores
時間枠:Baseline to week 72 (cohort 1).
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Assessed by the the Albireo ObsRO/ Patient Reported Outcomes (PRO) instruments. The Albireo ObsRO/PRO scratching and itch severity items use 0 to 4 response scales, where each response is distinguished by a unique facial expression, verbal anchor, number, and color code. |
Baseline to week 72 (cohort 1).
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Percentage of participants achieving a clinically meaningful decrease in pruritus (pruritus responders)
時間枠:Baseline to week 72 (cohort 1).
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Assessed by the Albireo ObsRO/patient reported outcomes (PRO) instruments |
Baseline to week 72 (cohort 1).
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Change from baseline in sleep parameters.
時間枠:Baseline to week 72 (cohort 1).
|
Assessed with the Albireo ObsRO/PRO instruments (e.g: tiredness and number of awakenings). |
Baseline to week 72 (cohort 1).
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Change from baseline in Pediatric Quality of Life Inventory (PedsQL) scores.
時間枠:Baseline to week 72 (cohort 1).
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The PedsQL instrument consists of 36 questions and uses a 5-point response scales, where higher scores indicates worst symptoms. |
Baseline to week 72 (cohort 1).
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Change from baseline in in Global Symptom Relief: Patient Global Impression of Improvement (PGIC) score.
時間枠:Baseline to Weeks 4, 12, 24, 48 and 72 (cohort 1).
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The Patient Global Impression of Change (PGIC) is a patient-reported instrument that measures change in overall status on a scale ranging from one ("very much improved") to seven ("very much worse"). |
Baseline to Weeks 4, 12, 24, 48 and 72 (cohort 1).
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Change from baseline in in Global Symptom Relief: Clinical Global Impression of Improvement (CGIC) score.
時間枠:Baseline to Weeks 4, 12, 24, 48 and 72 (cohort 1).
|
The Clinical Global Impression of Change (CGIC) is a clinician-reported instrument that measures change in overall status on a scale ranging from one ("very much improved") to seven ("very much worse"). |
Baseline to Weeks 4, 12, 24, 48 and 72 (cohort 1).
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Change from baseline in in Global Symptom Relief: Caregiver Global Impression of Change (CaGIC) score
時間枠:Baseline to Weeks 4, 12, 24, 48 and 72 (cohort 1).
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The caregiver Global Impression of Change is a caregiver-reported instrument that measures change in overall status on a scale ranging from one ("very much improved") to seven ("very much worse"). |
Baseline to Weeks 4, 12, 24, 48 and 72 (cohort 1).
|
|
Percentage of participants with Treatment Emergent Adverse Event (TEAEs) and Serious Adverse Events (SAEs)
時間枠:Baseline to week 72 (cohort 1).
|
An Adverse event (AE) is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. A serious adverse event (SAE) is an AE that resultes in any of following outcomes: death; life threatening; persistent/significant disability/incapacity; initial or prolonged inpatient hospitalization; congenital anomaly/birth defect or was otherwise considered medically important. Treatment-emergent adverse events. TEAEs included both Serious TEAEs and non-serious TEAEs. |
Baseline to week 72 (cohort 1).
|
協力者と研究者
捜査官
- スタディディレクター:Ipsen Medical Director、Ipsen
研究記録日
主要日程の研究
研究開始 (実際)
一次修了 (推定)
研究の完了 (推定)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (実際)
学習記録の更新
投稿された最後の更新 (実際)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
本研究に関する用語
追加の関連 MeSH 用語
その他の研究ID番号
- A4250-015
- 2023-509028-17-00 (Ctis)
- 2021-000996-36 (EudraCT番号)
- 2023 (米国 NIH グラント/契約)
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?
IPD プランの説明
Qualified researchers may request access to patient level data and related study documents including the clinical study report, study protocol with any amendments, annotated case report form, statistical analysis plan, and dataset specifications.
Patient level data will be anonymized and study documents will be redacted to protect the privacy of study participants.
IPD 共有時間枠
Where applicable, data from eligible studies are available 6 months after the studied medicine and indication have been approved in the US and/or EU.
IPD 共有アクセス基準
Further details on Ipsen's sharing criteria and process for sharing are available here (https://www.ipsen.com/science/clinical-trials/clinical-data-transparency/).
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
米国FDA規制機器製品の研究
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。