E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Homozygous familial hypercholesterolaemia |
Ipercolesterolemia familiare monozigote |
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E.1.1.1 | Medical condition in easily understood language |
Hypercholesterolemia (high cholesterol), familial |
Ipercolesterolemia (elevato livello di colesterolo) familiare |
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E.1.1.2 | Therapeutic area | Diseases [C] - Congenital, Hereditary, and Neonatal Diseases and Abnormalities [C16] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 14.1 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10057100 |
E.1.2 | Term | Homozygous familial hypercholesterolaemia |
E.1.2 | System Organ Class | 100000004850 |
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E.1.3 | Condition being studied is a rare disease | Yes |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
Part A: To characterize the effect of 12 weeks of subcutaneous (SC) AMG 145 on percent change from baseline in low-density lipoprotein cholesterol (LDL-C) in subjects with homozygous familial hypercholesterolemia (HoFH)
Part B: To evaluate the effect of 12 weeks of subcutaneous (SC) AMG 145 compared with placebo on percent change from baseline in LDL-C in subjects with HoFH |
Parte A: Valutare l’effetto di 12 settimane di trattamento con AMG 145 per via sottocutanea (SC) sulla variazione percentuale rispetto al basale del colesterolo LDL (lipoproteina a bassa densità, LDL-C) in soggetti con ipercolesterolemia familiare omozigote
Parte B: Valutare l’effetto di 12 settimane di trattamento con AMG 145 per via sottocutanea (SC) rispetto al placebo sulla variazione percentuale rispetto al basale dell’LDL-C in soggetti con ipercolesterolemia familiare omozigote
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E.2.2 | Secondary objectives of the trial |
Part A:
- To evaluate the safety and tolerability of AMG 145 SC in subjects with HoFH
- To assess the effects of 12 weeks of AMG 145 SC on absolute change in LDL-C, and percent change in non-high-density lipoprotein cholesterol (non-HDL-C), apolipoprotein B
(ApoB), total cholesterol/HDL-C ratio, and ApoB/Apolipoprotein A-1 (ApoA1) ratio in subjects with HoFH
Part B:
-To evaluate the safety and tolerability of AMG 145 SC compared with placebo in subjects with HoFH
- To assess the effects of 12 weeks of AMG 145 SC, compared with placebo, on absolute change in LDL-C, and percent change in non-high-density lipoprotein cholesterol (non-HDL-C), apolipoprotein B (ApoB), total cholesterol/HDL-C ratio, and ApoB/Apolipoprotein A-1 (ApoA1) ratio in subjects with HoFH
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Parte A:Valutare sicurezza e tollerabilità di AMG 145 per via SC in soggetti con ipercolesterolemia familiare omozigote
Valutare gli effetti di 12 settimane di AMG 145 per via SC sulla variazione assoluta di LDL-C e sulla variazione percentuale delle lipoproteine non ad alta densità (non-HDL-C), dell’apolipoproteina B (ApoB), del rapporto colesterolo totale/HDL-C e del rapporto ApoB/Apolipoproteina A-1 (ApoA1) in soggetti con ipercolesterolemia familiare omozigote
Parte B:Valutare sicurezza e tollerabilità di AMG 145 per via SC rispetto al placebo in soggetti con ipercolesterolemia familiare omozigote, valutare gli effetti di 12 settimane di trattamento con AMG 145 per via SC, rispetto al placebo, sulla variazione assoluta di LDL-C e sulla variazione percentuale delle lipoproteine non ad alta densità (non-HDL-C), dell’apolipoproteina B (ApoB), del rapporto colesterolo totale/HDL-C e del rapporto ApoB/Apolipoproteina A-1 (ApoA1) in soggetti con ipercolesterolemia familiare omozigote |
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E.2.3 | Trial contains a sub-study | Yes |
E.2.3.1 | Full title, date and version of each sub-study and their related objectives |
Pharmacogenetic sub-study.
This sub-study will investigate potential correlations of study data including the subject response to AMG 145 with genetic variation in markers of proprotein convertase subtilisin/kexin type 9 (PCSK9) signaling, low-density lipoprotein receptor (LDLR) turnover, cholesterol metabolism, inflammation, and plaque stability. |
Sottostudio di farmacogenetica
Questo sottostudio valuterà le potenziali correlazioni dei dati dello studio inclusa la risposta dei soggetti a AMG 145 con una variazione genetica dei markers della PCSK9, del turnover del recettore LDL, del metabolismo del colesterolo, dell’infiammazione e della stabilità della placca |
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E.3 | Principal inclusion criteria |
• Subject has provided informed consent.
• Male or female ≥ 12 to ≤ 65 years of age
• Diagnosis of homozygous familial hypercholesterolemia by genetic confirmation or a clinical diagnosis based on a history of an untreated LDL cholesterol concentration greater than 500 mg/dl (13 mmol/L) together with either xanthoma before 10 years of age or evidence of heterozygous familial hypercholesterolemia in both parents.
• On a stable on a low-fat diet and taking pre-existing lipid-lowering therapies (such as statins, cholesterol-absorption inhibitors, bile-acid sequestrants or nicotinic acid, or combinations thereof) for at least 4 weeks, with fasting central lab LDL cholesterol concentration > 130 (3.4 mmol/L)
• Fasting triglycerides ≤ 400 mg/dL (4.5 mmol/L) by central laboratory at screening
• Bodyweight of 40 kg or greater at screening
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Soggetto che abbia fornito il consenso informato
Soggetti di entrambi i sessi, di età compresa tra ≥ 12 e ≤ 65 anni con diagnosi di ipercolesterolemia familiare omozigote confermata geneticamente o diagnosticata clinicamente in base a un’anamnesi di concentrazione di colesterolo LDL non trattato superiore a 500 mg/dL (13 mmol/L) associata a xantoma prima dei 10 anni di età o evidenza di ipercolesterolemia familiare eterozigote in entrambi i genitori.
Per l’arruolamento i soggetti devono essere da almeno 4 settimane in una situazione di stabilità con una dieta ipolipidica e una terapia ipolipemizzante preesistenti (con statine, inibitori dell’assorbimento del colesterolo, sequestranti degli acidi biliari, acido nicotinico o con combinazioni dei farmaci citati). Al momento dello screening devono inoltre presentare concentrazioni determinate dal laboratorio centrale di colesterolo LDL a digiuno >130 mg/dL (3,4 mmol/L), di trigliceridi < 400 mg/dL (4,5 mmol/L), e un peso pari o superiore a 40 kg. Durante lo studio i pazienti non dovranno modificare la terapia ipolipemizzante di base. Per via della difficoltà di mantenere concentrazioni stabili di colesterolo LDL durante l’aferesi, nelle 8 settimane che precedono la visita di screening e durante lo studio, i pazienti non dovranno essere sottoposti a LDL aferesi.
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E.4 | Principal exclusion criteria |
• LDL or plasma apheresis within 8 weeks prior to enrollment
• Use of Mipomersen within 5 months of screening
• NYHA III or IV heart failure, or last known left ventricular ejection fraction < 30%
• Uncontrolled serious cardiac arrhythmia defined as recurrent and highly symptomatic ventricular tachycardia, atrial fibrillation with rapid ventricular response, or supraventricular tachycardia that are not controlled by medications, in the past 3 months prior to enrollment
• Myocardial infarction, unstable angina, percutaneous coronary intervention (PCI), coronary artery bypass graft (CABG) or stroke within 3 months prior to enrollment
• Planned cardiac surgery or revascularization within 20 weeks of screening
• Uncontrolled hypertension defined as sitting systolic blood pressure (SBP) > 180 mmHg or diastolic BP (DBP) > 110 mmHg, confirmed with repeat measurement
• Subject requires uptitration of their current statin dose within 4 weeks of screening (these subjects can be uptitrated and rescreened 1 month later)
• Moderate to severe renal dysfunction, defined as an estimated glomerular filtration rate (eGFR) < 30 ml/min/1.73m2 at screening
• Active liver disease or hepatic dysfunction, defined as aspartate aminotransferase (AST) or alanine aminotransferase (ALT) > 3 times the ULN as determined by central laboratory analysis at screening
• Unexplained CK > 5 times the ULN at screening, confirmed by a repeat measurement at least 1 week apart
• Known active infection or major hematologic, renal, metabolic, gastrointestinal or endocrine dysfunction in the judgment of the investigator
• Diagnosis of deep vein thrombosis or pulmonary embolism within 3 months prior to enrollment
• Unreliability as a study participant based on the investigator's (or designee’s) knowledge of the subject (eg, alcohol or other drug abuse, inability or unwillingness to adhere to the protocol, or psychosis)
• Currently enrolled in another investigational device or drug study, or less than 30 days since ending another investigational device or drug study(s), or receiving other investigational agent(s)
• Female subject who is not willing to use at least 1 highly effective method of birth control during treatment and for an additional 15 weeks after the end of treatment unless subject is sterilized or postmenopausal;
• Subject is pregnant or breast feeding, or planning to become pregnant during treatment and/or within 15 weeks after the end of treatment
• Malignancy (except non-melanoma skin cancers, cervical in-situ carcinoma, breast ductal carcinoma in situ, or stage 1 prostate carcinoma) within the last 5 years
• Subject has previously received AMG 145 or any other investigational therapy to inhibit inhibiting PCSK9
• Known sensitivity to any of the products to be administered during dosing
• Subject will not be available for protocol-required study visits or procedures, to the best of the subject and investigator’s knowledge.
• Subject has any kind of disorder that, in the opinion of the investigator, may compromise the ability of the subject to give written informed consent and/or to comply with all required study procedures.
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I principali criteri di esclusione sono: plasmaferesi o LDL aferesi nelle 8 settimane precedenti l’arruolamento; utilizzo di Mipomersen nei 5 mesi precedenti lo screening; classe III o IV secondo la New York Heart Failure Association (NYHA) o ultimo valore noto della frazione di eiezione ventricolare sinistra < 30%; negli ultimi 3 mesi aritmia cardiaca non controllata farmacologicamente; infarto miocardico, angina instabile, intervento coronarico percutaneo (PCI), innesto di bypass coronarico (CABG) o ictus negli ultimi 3 mesi prima dell’arruolamento; intervento programmato di cardiochirurgia o rivascolarizzazione; pressione arteriosa sistolica (SBP) > 180 mmHg o diastolica (DBP) > 110 mmHg; necessità di aumento della dose di statine nelle 4 settimane che precedono lo screening; tasso di filtrazione glomerulare stimato (eGFR) < 30 ml/min/1,73m2; valori persistenti di aspartato aminotransferasi (AST) o alanina aminotransferasi (ALT) > 3x ULN, di creatinchinasi (CK) > 5x ULN senza una causa nota; infezione maggiore attiva o disfunzioni ematologiche, renali, metaboliche, gastrointestinali o endocrine maggiori; trombosi venosa profonda o embolia polmonare nei 3 mesi precedenti l’arruolamento.
Le donne non devono essere in gravidanza o in allattamento, e le donne in età premenopausale devono essere disposte ad utilizzare almeno 1 metodo contraccettivo altamente efficace durante il trattamento e per le 15 settimane che seguono la fine del trattamento.
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E.5 End points |
E.5.1 | Primary end point(s) |
Part A & Part B: The percent change LDL-C from baseline to week 12. |
Parte A e parte B dello studio: percentuale di cambiamento dei livelli di colesterolo LDL-C dal basale alla settimana 12 |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
From baseline to week 12 |
dal basale alla settimana 12 |
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E.5.2 | Secondary end point(s) |
• Change in LDL-C at week 12 (Part A and Part B)
• Percent change in non-HDL-C at week 12 (Part A and Part B)
• Percent change in ApoB at week 12 (Part A and Part B)
• Percent change in the total cholesterol/HDL-C ratio at week 12 (Part A and Part B)
• Percent change in ApoB/ApoA1 ratio at week 12 (Part A and Part B)
• Response rate of subjects with 15% or greater reduction in LDL-C from baseline to Week 12 (Part A only)
• Change in PCSK9 at week 12 (Part A and Part B)Subject incidence of treatment emergent adverse events
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• -variazione rispetto al basale dei valori di LDL-C alla settimana 12 (Parte A e B)
• -variazione percentuale rispetto al basale dei valori di non-HDL-C alla settimana 12 (Parte A e B)
• -variazione percentuale rispetto al basale dei valori di ApoB alla settimana 12 (Parte A e B)
• -variazione percentuale rispetto al basale del rapporto colesterolo totale/HDL-C alla settimana 12 (Parte A e B)
• -variazione percentuale rispetto al basale del rapporto ApoB/ApoA1 alla settimana 12 (Parte A e B)
• -tasso di risposta dei soggetti con riduzione pari o superiore al 15% dei valori di LDL-C rispetto al basale alla settimana 12 (solo parte A)
• -variazione rispetto al basale dei valori di PCSK9 alla settimana 12 (Parte A e B)
• -incidenza per soggetto di eventi avversi emersi durante il trattamento |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
- Percent change from baseline in non-HDL-C at week 12: from baseline to week 12
- Percent change from baseline in ApoB at week 12: from baseline to week 12
- Percent change from baseline in the total cholesterol/HDL-C ratio at week 12: from baseline to week 12
- Percent change from baseline in ApoB/ApoA1 ratio at week 12: from baseline to week 12
- Response rate of subjects with 15% or greater reduction in LDL-C from baseline to Week 12 (Part A only): from baseline to week 12
- Change in PCSK9 at week 12 (Part A and Part B)Subject incidence of treatment emergent adverse events: from baseline to week 12
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- variazione percentuale rispetto al basale non-HDL-C alla settimana 12: dal basale alla settimana 12,
- variazione percentuale rispetto al basale alla settimana 12 dell’ApoB: dal basale alla
settimana 12 - variazione percentuale rispetto al basale del colesterolo totale / HDL-C alla
settimana 12: dal basale alla settimana 12 - variazione percentuale rispetto al basale ApoB/ApoA1 alla settimana 12: dal
basale alla settimana 12, percentuale di risposta dei soggetti con il 15% o maggiore riduzione di LDL-C dal
basale alla settimana 12 (Parte A solo : dal basale alla settimana 12)
- variazione della PCSK9 alla settimana 12 (Parte A e Parte B incidenza di eventi avversi emergenti dal trattamento, per soggetto: dal basale alla settimana 12
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | No |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | Yes |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | Yes |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | Yes |
E.6.13.1 | Other scope of the trial description |
Tolerability |
Tollerabilità |
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E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | Yes |
E.7.3 | Therapeutic confirmatory (Phase III) | Yes |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | Yes |
E.8.1.7.1 | Other trial design description |
Parte A in aperto, singolo cieco; Parte B dello studio - doppio cieco, gruppi paralleli |
Part A - Open label, single blind; Part B - double blind, parallel group |
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E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | Yes |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 2 |
E.8.3 |
The trial involves single site in the Member State concerned
| Yes |
E.8.4 | The trial involves multiple sites in the Member State concerned | No |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 9 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
Austria |
Belgium |
Brazil |
Canada |
Czech Republic |
France |
Hong Kong |
Malaysia |
New Zealand |
South Africa |
Spain |
Turkey |
United States |
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E.8.7 | Trial has a data monitoring committee | Yes |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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LVLS |
ultima visita dell'ultimo paziente |
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 2 |
E.8.9.1 | In the Member State concerned months | 8 |
E.8.9.1 | In the Member State concerned days | 0 |
E.8.9.2 | In all countries concerned by the trial years | 2 |
E.8.9.2 | In all countries concerned by the trial months | 8 |
E.8.9.2 | In all countries concerned by the trial days | 0 |