E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Treatment of Hyperphosphataemia. |
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E.1.1.1 | Medical condition in easily understood language |
Hyperphosphataemia in chronic kidney disease is caused by decreased excretion of phosphorus by kidneys. |
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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 | LLT |
E.1.2 | Classification code | 10020712 |
E.1.2 | Term | Hyperphosphatemia |
E.1.2 | System Organ Class | 100000004861 |
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E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To summarize the percentage of subjects achieving age-specific Kidney Disease Outcomes Quality Initiative (KDOQI) targets for serum phosphorus in hyperphosphatemic children and adolescents with chronic kidney disease (CKD) who are on dialysis, following 8 weeks of treatment with lanthanum carbonate. |
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E.2.2 | Secondary objectives of the trial |
1. To investigate the safety profile in hyperphosphatemic children and adolescents with CKD on dialysis treated with calcium carbonate and/or lanthanum carbonate. 2. To summarize the percentage of subjects achieving KDOQI targets for serum phosphorus in hyperphosphatemic children and adolescents with CKD who are on dialysis following treatment with calcium carbonate for 8 weeks and lanthanum carbonate for 8 weeks. 3. To assess mean changes from baseline in serum phosphorus, calcium and calcium-phosphorus product in hyperphosphatemic children and adolescents with CKD who are on dialysis, following treatment with lanthanum carbonate for 8 weeks. 4. To summarize mean changes from baseline in serum phosphorus, calcium and calcium-phosphorus product in hyperphosphatemic children and adolescents with CKD who are on dialysis, following treatment with calcium carbonate for 8 weeks and lanthanum carbonate for 8 weeks. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. Aged 10 yesrs to < 18 years of age at the time of consent.
2. Subject and parent or legally authorized representative (LAR) understand and are able, willing, and likely to fully comply with the study procedures and restrictions defined in this protocol.
3. Male, or non pregnant, non lactating female who agrees to comply with any applicable contraceptive requirements of the protocol.
4. Established CKD, on dialysis and requires treatment for hyperphosphataemia with a phosphate binder.
5. Serum phosphorus levels after a washout period of up to 3 weeks as follows:
• Age <12 years: Serum phosphorus > 6.0mg/dL (1.94mmol/L).
• Age 12 years and older: Serum phosphorus >5.5mg/dL (1.78mmol/L).
6. Ability to provide written, signed, and dated (personally or via a legally acceptable representative) informed consent/and assent, as applicable, to participate in the study.
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E.4 | Principal exclusion criteria |
Subjects are excluded from the study if any of the following criteria are met: 1. Current or recurrent disease (e.g., cardiovascular, liver, unstable and uncontrolled gastrointestinal, malignancy, or other conditions) other than CKD or end-stage renal disease that could affect the action, absorption or disposition of the investigational product, or clinical or laboratory assessments. 2. Current or relevant history of physical or psychiatric illness, any medical disorder (except for CKD or end-stage renal disease and related co-morbidities) that may require treatment or make the subject unlikely to fully complete the study, or any condition that presents undue risk from the investigational product or procedures. 3. Unable to eat semi-solid foods or on Total Enteral Alimentation. 4. Known or suspected intolerance or hypersensitivity to the investigational product(s), closely related compounds, or any of the stated ingredients. 5. History of alcohol or other substance abuse within the last year. 6. Current use of any medication (including over-the-counter, herbal, or homeopathic preparations) that could affect (improve or worsen) the condition being studied, or could affect the action, absorption, or disposition of the investigational product(s), or clinical or laboratory assessment.( Current use is defined as use within 1 day) See Section 5 ( Prior and Concomitant Treatment) for a list of prohibited and restricted medications. 7. Weight and age of subject are outside local applicable criteria for blood sample volume limits. 8. Use of another investigational product within 30 days prior to receiving the first dose of investigational product. |
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E.5 End points |
E.5.1 | Primary end point(s) |
The percentage of subjects with serum phosphorus levels below the age-specific KDOQI targets following 8-weeks of treatment with calcium carbonate and lanthanum carbonate (Part 2 of the study).
The KDOQI serum phosphorus targets are defined as:
‒ Adolescents aged ≥12-<18 years: ≤5.5mg/dL (1.78mmol/L).
‒ Children aged 6 months -<12 years: ≤6.0mg/dL (1.94mmol/L).
For the primary endpoint, the percentage of subjects achieving age-specific KDOQI targets for serum phosphate levels after 8 weeks of lanthanum carbonate treatment will be descriptively summarized and calculated along with a 95% confidence interval. The FAS and PP2 Sets will be used for this descriptive summarization. Serum phosphate levels tested at a central laboratory will be used for the analysis. In the case of missing central laboratory data, local laboratory data will be used. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
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E.5.2 | Secondary end point(s) |
• The percentage of subjects with serum phosphorus levels below the age-specific KDOQI targets following 8 weeks of treatment with calcium carbonate followed by 8 weeks of treatment with lanthanum carbonate will be descriptively summarized and will be calculated along with a 95% confidence interval, separately, for each treatment arm. The FAS and PP1 Sets will be used for this summarization. The KDOQI serum phosphorus targets are defined as: - Adolescents aged ≥12-<18 years: ≤5.5 mg/dL (1.78 mmol/L) - Children aged 10 years -<12 years: ≤6.0 mg/dL (1.94 mmol/L) • Changes from baseline in serum phosphorus, calcium and calciumphosphorus product in hyperphosphatemic children and adolescents with CKD who are on dialysis, following treatment with lanthanum carbonate for 8 weeks. • Change from baseline in serum phosphorus, calcium and calciumphosphorus product levels at the last visit of each 8 week treatment period during Part 2 and monthly during the 6-month extension phase (Part 3). • Biochemical bone markers: bone ALP, osteocalcin, TRAP, FGF-23, PTH, sclerostin and fetuin-A before and after each treatment period in Part 2, and at the end of Part 3. • Height and weight at: o Visits 2.0, 2.4, 2.8, and 3.5 (Parts 2a and 3) o Visits 1.0, 2.4, and 3.5 (Parts 2b and 3).
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
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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 | No |
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 |
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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) | No |
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 | 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 | Yes |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | Yes |
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 | 6 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 12 |
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 |
Argentina |
Chile |
Czech Republic |
Germany |
Hungary |
India |
Poland |
Romania |
Russian Federation |
South Africa |
Turkey |
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E.8.7 | Trial has a data monitoring committee | No |
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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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 6 |
E.8.9.1 | In the Member State concerned months | 4 |
E.8.9.1 | In the Member State concerned days | 0 |
E.8.9.2 | In all countries concerned by the trial years | 6 |
E.8.9.2 | In all countries concerned by the trial months | 4 |
E.8.9.2 | In all countries concerned by the trial days | 0 |