E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Familial Chylomicronemia
Syndrome |
|
E.1.1.1 | Medical condition in easily understood language |
An inherited disease that prevents the body from breaking down fats |
|
E.1.1.2 | Therapeutic area | Diseases [C] - Nutritional and Metabolic Diseases [C18] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10020606 |
E.1.2 | Term | Hyperchylomicronaemia |
E.1.2 | System Organ Class | 10027433 - Metabolism and nutrition disorders |
|
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 |
To evaluate the efficacy of volanesorsen sodium (ISIS 304801) administered by subcutaneous (SC)
injection to adolescent and pediatric patients with FCS. |
|
E.2.2 | Secondary objectives of the trial |
To evaluate the safety, pharmacodynamic profile, and pharmacokinetic profile of volanesorsen sodium
(ISIS 304801) administered by subcutaneous (SC) injection to adolescent and pediatric patients with
FCS. |
|
E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
Cohort 1 Inclusion Criteria:
1. Age ≥ 12 years and < 18 years at time of informed consent and assent, as required by regional laws or regulations
Cohort 2 Inclusion Criteria:
1. Age ≥ 2 years to < 12 years at time of informed consent and assent, as required by regional laws or regulations
Cohort 1 and 2 Inclusion Criteria:
2. Written informed consent/assent and any authorizations required by law must be obtained from the patient and parent(s) (or legally authorized representative) after the nature of the study has been explained and before any assessment is performed
3. Confirmed homozygote, compound heterozygote or double heterozygote for known loss-of-function mutations in FCS-causing genes (such as LPL, APOC2, APOA5, LMF1 or GP1HBP1)
4. Fasting TG ≥ 880 mg/dL (~10 mmol/L) at screening. If the fasting TG is < 880 mg/dL, up to two additional tests may be performed in order to qualify
5. Willing to follow a diet for optimal control of TGs and disease management during the study
For patients of reproductive age, an additional inclusion criterion:
6. Satisfy one of the following:
a. Females: Non-pregnant and non-lactating; abstinent*, or if engaged in sexual relations of childbearing potential, patient agrees to use an acceptable contraceptive method (refer to Section 6.3.1) from time of signing the informed consent/assent form until 13 weeks after the last visit in the Treatment Period
b. Males: Abstinent* or if engaged in sexual relations with a female of childbearing potential, patient is utilizing an acceptable contraceptive method (refer to Section 6.3.1) from the time of signing the informed consent/assent form until 13 weeks after the last visit in the Treatment Period
* Abstinence (i.e. refraining from heterosexual intercourse) is only acceptable to meet the contraception requirements of the study if it is true abstinence. This means that abstinence must be the preferred and usual lifestyle of the patient. Periodic abstinence (i.e. calendar, ovulation, symptothermal, post-ovulation methods), declaration of abstinence for the duration of a trial, and/or withdrawal are not acceptable methods of
contraception |
|
E.4 | Principal exclusion criteria |
1. Body weight < 10 kg
2. Type 1 or Type 2 diabetes mellitus
3. Any of the following laboratory values at screening
a. Hepatic:
• Total bilirubin > upper limit of normal (ULN), unless prior diagnosis and documentation of
Gilbert’s syndrome in which case total bilirubin must be ≤ 3 mg/dL
• Alanine Aminotransferase (ALT) > 2.0 x ULN
• Aspartate Aminotransferase (AST) > 2.0 x ULN
b. Renal:
• Persistently positive proteinuria: urine protein/creatinine ratio (UPCR) > 0.2 mg/mg on 2 tests
separated by at least 7 days
• Persistently positive hematuria: urine microscopy showing > 5 red blood cells per high power field
on 2 tests separated by at least 7 days
• Estimated GFR (eGFR) < 75 mL/min/1.73m2 using the Bedside Schwartz formula (Selistre 2016)
c. Low density lipoprotein-cholesterol (LDL-C) > 130 mg/dL at screening
d. Platelet count < 140,000/mm3
e. Any other laboratory abnormalities which, in the opinion of the Investigator or the Sponsor, would
make the patient unsuitable for inclusion
4. History of chronic kidney disease
5. Uncontrolled thyroid disease
6. Has uncontrolled hypertension (average clinic measured SBP and/or DBP ≥95th percentile on the basis of
age, sex, and height percentiles)**
**See Appendix E Blood Pressure Tables for Boys and Girls by Age and Height Percentile
7. History of bleeding diathesis or coagulopathy or clinically-significant abnormality in coagulation parameters
at screening
8. Active infection requiring systemic antiviral or antimicrobial therapy that will not be completed prior to
Study Day 1
9. Known history of or positive test for human immunodeficiency virus (HIV), hepatitis C or chronic hepatitis
B
10. History of malignancy
11. History of alcoholism or drug/chemical abuse within 1 year of screening
12. Treatment with another investigational drug, biological agent, or device within one month of screening, or 5 half-lives of investigational agent, whichever is longer
13. Unwilling or unable to comply with lifestyle requirements
14. History of major psychosis or major depressive disorder
15. Use of any of the following:
a. Statins, omega-3 fatty acids (prescription and over-the-counter [OTC]), or fibrates unless on a stable dose for at least 3 months prior to screening and dose and regimen expected to remain constant during the Treatment Period. Patients taking OTC omega-3 fatty acids should make every effort to remain on the same brand throughout the study
b. Nicotinic acid or derivatives of nicotinic acid within 4 weeks prior to screening
c. Systemic corticosteroids or anabolic steroids within 6 weeks prior to screening
d. Treatment with oral anticoagulant medications
e. Estrogens or progestins (including birth control pills) unless on a stable dose for at least 6 weeks prior to screening and dose and regimen expected to remain constant during the Treatment Period
f. Plasma apheresis within 4 weeks prior to screening or planned during the study
g. Prior exposure to volanesorsen within the last 6 months
h. Any other medication unless stable at least 4 weeks prior to screening. Occasional or intermittent use of over-the-counter medications will be allowed at Investigator’s discretion
16. Known hypersensitivity to any of the excipients of volanesorsen
17. In the opinion of the Investigator, inability to comply with the protocol
18. Have any other conditions, including history of significant cardiac disease which, in the opinion of the Investigator or the Sponsor would make the patient unsuitable for inclusion, or could interfere with the patient participating in or completing the study |
|
E.5 End points |
E.5.1 | Primary end point(s) |
To evaluate the efficacy of volanesorsen administered SC to adolescent and pediatric patients with Familial Chylomicronemia Syndrome (FCS) by assessing the following:
• Percent change in fasting triglycerides from Baseline to the primary analysis time point at Week 13. |
|
E.5.1.1 | Timepoint(s) of evaluation of this end point |
|
E.5.2 | Secondary end point(s) |
To further evaluate the efficacy, safety and PK/PD profile of volanesorsen administered SC to adolescent and pediatric patients with Familial Chylomicronemia Syndrome (FCS) by assessing the following:
• Percent change from baseline in fasting TG at Weeks 25, 53, 77, and 105
• Change from baseline in fasting TG at Weeks 13, 25, 53, 77, and 105
• Proportion of patients who achieve fasting TG < 750 mg/dL overall and at Weeks 13, 25, 53, 77, and 105
• Proportion of patients who achieve fasting TG < 500 mg/dL overall and at Weeks 13, 25, 53, 77, and 105
• Proportion of patients who achieve ≥ 40% fasting TG reduction from baseline overall and at Weeks 13, 25, 53, 77, and 105
• Change and percent change from baseline in other fasting lipid measurements at Weeks 13, 25, 53, 77, and 105 including: total apolipoprotein C-III (apoC-III), total cholesterol, non-high-density lipoprotein cholesterol (non-HDL-C), high-density lipoprotein-cholesterol (HDL-C), apoB, apoA-1,
very-low-density lipoprotein-cholesterol (VLDL-C), and low-density lipoprotein-cholesterol (LDLC)
• Comparison of adjudicated acute pancreatitis event rate and patient reported abdominal pain prior to first dose of Study Drug (including events based on medical chart review) vs. adjudicated pancreatitis events and patient reported abdominal pain on treatment at Week 25 and Week 53
• Change from baseline in hepatosplenomegaly as assessed by MRI at Week 53 and optional Week 105
• Change in Quality of Life from baseline at Weeks 13, 25, 53, 77, and 105 |
|
E.5.2.1 | Timepoint(s) of evaluation of this end point |
Baseline, 13, 25, 53, 77, and 105 |
|
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 | Yes |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | Yes |
E.6.7 | Pharmacodynamic | Yes |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
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) | No |
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 | No |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | Yes |
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 | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 1 |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 2 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 14 |
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 |
Australia |
Serbia |
South Africa |
Austria |
France |
Germany |
Italy |
Netherlands |
Poland |
Spain |
Switzerland |
United Kingdom |
|
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
|
last patient, last visit. |
|
E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 5 |
E.8.9.1 | In the Member State concerned months | |
E.8.9.1 | In the Member State concerned days | |
E.8.9.2 | In all countries concerned by the trial years | 5 |