E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Secondary Hyperparathyroidism and Chronic Kidney Disease Receiving
Dialysis |
|
E.1.1.1 | Medical condition in easily understood language |
Secondary Hyperparathyroidism and Chronic Kidney Disease |
|
E.1.1.2 | Therapeutic area | Diseases [C] - Hormonal diseases [C19] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 17.1 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10020708 |
E.1.2 | Term | Hyperparathyroidism secondary |
E.1.2 | System Organ Class | 10014698 - Endocrine disorders |
|
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 evaluate the efficacy of cinacalcet for reducing the plasma intact
parathyroid hormone (iPTH) level by ≥ 30% |
|
E.2.2 | Secondary objectives of the trial |
• To evaluate the efficacy of cinacalcet for lowering the plasma iPTH
level to ≤ 300 pg/mL (31.8 pmol/L)
• To evaluate the impact of cinacalcet on corrected total serum calcium
level
• To evaluate the impact of cinacalcet on serum phosphorus level |
|
E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
- Subject's legally acceptable representative has provided informed
consent when the subject is legally too young to provide informed
consent and the subject has provided written assent based on local
regulations and/or guidelines prior to any study-specific
activities/procedures being initiated.
- Age 6 to < 18 years old at time of randomization
- Diagnosis of CKD, receiving either hemodialysis or peritoneal dialysis
for ≥ 30 days prior to screening
- Dry weight ≥ 12.5 kg during screening
- Diagnosis of SHPT with the mean of the 2 consecutive central
laboratory iPTH values ≥ 300 pg/mL during screening
- Corrected calcium value ≥ 8.8 mg/dL obtained from the central
laboratory during screening
- Dialysate calcium level ≥ 2.5 mEq/L during screening |
|
E.4 | Principal exclusion criteria |
- Currently receiving treatment in another investigational device or drug
XML File Identifier: 2Foe96Pf+yXcUCKoHgnZJBOfL7k=
Page 14/25
study, or less than 30 days since ending treatment on another
investigational device or drug study(s)
- Other investigational procedures while participating in this study are
excluded 203 Malignancy except non-melanoma skin cancers, cervical or
breast ductal carcinoma in situ within the last 5 years
- Subject has known sensitivity to any of the products to be administered
during dosing
- Subject likely to not be available to complete all protocol-required
study visits or procedures, and/or to comply with all required study
procedures (eg, electronic patient diary) to the best of the subject and
investigator's knowledge
- History or evidence of any other clinically significant disorder,
condition or disease (with the exception of those outlined above) that, in
the opinion of the investigator or Amgen physician, if consulted, would
pose a risk to subject safety or interfere with the study evaluation,
procedures, or completion
- Subject previously has entered this study
- If sexually active, subject is not willing to use highly effective
contraception during treatment and for at least 9 days after the end of
treatment
- Subject is pregnant or breast feeding, or planning to become pregnant
during the study or within 9 days after the end of treatment
- History of congenital long QT syndrome, second or third degree heart
block, ventricular tachyarrythmias or other conditions associated with
prolonged QT interval
- Receipt of cinacalcet (within 30 days of screening)
During screening:
- Corrected QT Interval (QTc) > 500 ms, using Bazett's formula
- QTc ≥ 450 to ≤ 500 ms, using Bazett's formula, unless written
permission to enroll is provided by the investigator after consultation
with a pediatric cardiologist
- Use of grapefruit juice, herbal medications or potent CYP3A4 inhibitors
(eg, erythromycin, clarithromycin, ketoconazole, itraconazole)
-Use of concomitant medications that may prolong the corrected QT
interval (eg, ondansetron, albuterol)
- Receipt of cinacalcet
At time of randomization, scheduled for or expect:
- Renal transplant within 90 days |
|
E.5 End points |
E.5.1 | Primary end point(s) |
Achievement of a ≥ 30% reduction from baseline in mean plasma iPTH
during the efficacy assessment period (EAP), defined as Week 17 – 20. |
|
E.5.1.1 | Timepoint(s) of evaluation of this end point |
|
E.5.2 | Secondary end point(s) |
• Achievement of a mean iPTH ≤ 300 pg/mL (31.8 pmol/L) during the
EAP
• Percent change in iPTH from baseline to the mean value during the EAP
• Change in corrected total serum calcium from baseline to the mean
value during the EAP
• Change in serum phosphorus from baseline to the mean value during
the EAP |
|
E.5.2.1 | Timepoint(s) of evaluation of this end point |
|
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 | No |
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 | 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 | Yes |
E.8.1.1 | Randomised | Yes |
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 | Yes |
E.8.2.3.1 | Comparator description |
|
E.8.2.4 | Number of treatment arms in the trial | 2 |
E.8.3 |
Will this trial be conducted at a single site globally?
| No |
E.8.4 | Will this trial be conducted at multiple sites globally? | Yes |
E.8.6 Trial involving sites outside the EEA |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | Specify the countries outside of the EEA in which trial sites are planned |
Mexico |
New Zealand |
Russian Federation |
Ukraine |
United States |
|
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
|
The end of study is the primary completion date. This is defined as the time when the last subject is assessed or receives an intervention for the purposes of final collection of data for the primary analysis. |
|
E.8.9 Initial estimate of the duration of the trial |
E.8.9.2 | In all countries concerned by the trial years | 1 |
E.8.9.2 | In all countries concerned by the trial months | 6 |