Efficacy and Safety of Etelcalcetide (AMG 416) in the Treatment of Secondary Hyperparathyroidism (SHPT) in Patients With Chronic Kidney Disease on Hemodialysis
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ClinicalTrials.gov Identifier: NCT01785849 |
Recruitment Status :
Completed
First Posted : February 7, 2013
Results First Posted : March 27, 2017
Last Update Posted : August 26, 2019
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Condition or disease | Intervention/treatment | Phase |
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Hyperparathyroidism, Secondary | Drug: Etelcalcetide Drug: Placebo | Phase 3 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 508 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Triple (Participant, Care Provider, Investigator) |
Primary Purpose: | Treatment |
Official Title: | A Randomized, Double-blind, Placebo-controlled, Phase 3 Study to Assess the Efficacy and Safety of AMG 416 in the Treatment of Secondary Hyperparathyroidism in Subjects With Chronic Kidney Disease on Hemodialysis |
Actual Study Start Date : | March 12, 2013 |
Actual Primary Completion Date : | May 22, 2014 |
Actual Study Completion Date : | June 12, 2014 |

Arm | Intervention/treatment |
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Experimental: Etelcalcetide
Participants received etelcalcetide administered by intravenous bolus injection at the end of each hemodialysis session three times a week, for 26 weeks.
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Drug: Etelcalcetide
Administered intravenously three times per week. The starting dose was 5 mg. The dose may have been increased at 4-week intervals by 2.5 mg or 5 mg on the basis of the predialysis parathyroid hormone and corrected calcium concentrations obtained in the prior week. The minimum dose was 2.5 mg and the maximum dose was 15 mg.
Other Names:
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Placebo Comparator: Placebo
Participants received placebo administered by intravenous bolus injection at the end of each hemodialysis session, three times per week (TIW) for 26 weeks.
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Drug: Placebo
Administered intravenously (IV) three times per week. |
- Percentage of Participants With a > 30% Decrease From Baseline in Mean PTH During the Efficacy Assessment Phase [ Time Frame: Baseline and the efficacy assessment phase (EAP; defined as Weeks 20 to 27, inclusive). ]Participants who did not have any scheduled assessments during the EAP were considered non-responders.
- Percentage of Participants With Mean Predialysis Parathyroid Hormone ≤ 300 pg/mL During the Efficacy Assessment Phase [ Time Frame: Baseline and the efficacy assessment phase (Week 20 to Week 27) ]Participants who had no scheduled assessments during the EAP were considered non-responders.
- Percent Change From Baseline in Predialysis PTH During the Efficacy Assessment Phase [ Time Frame: Baseline and the Efficacy Assessment Phase (Week 20 to Week 27) ]
- Percent Change From Baseline in Predialysis Corrected Calcium During the Efficacy Assessment Phase [ Time Frame: Baseline and the efficacy assessment phase (Week 20 to Week 27) ]
- Percent Change From Baseline in Predialysis Corrected Calcium Phosphorus Product During the Efficacy Assessment Phase [ Time Frame: Baseline and the efficacy assessment phase (Week 20 to Week 27) ]
- Percent Change From Baseline in Predialysis Phosphorus During the Efficacy Assessment Phase [ Time Frame: Baseline and the efficacy assessment phase (Week 20 to Week 27) ]

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Ages Eligible for Study: | 18 Years to 100 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Subject understands the study procedures and agrees to participate in the study by giving written informed consent.
- Subject is 18 years of age or older.
- Subject must be receiving hemodialysis 3 times weekly for at least 3 months
- Subject agrees to not participate in another study of an investigational agent during the study.
- Other Inclusion Criteria may apply
Exclusion Criteria:
- Currently receiving treatment in another investigational device or drug study, or ended treatment on another investigational device or drug study(s) within 8 weeks prior to screening.
- Other investigational procedures while participating in this study are excluded.
- Anticipated or scheduled parathyroidectomy during the study period.
- Subject has received a parathyroidectomy within 3 months prior to dosing.
- Anticipated or scheduled kidney transplant during the study period.
- Subject has known sensitivity to any of the products or components to be administered during dosing.
- Subject has participated in a prior clinical trial of AMG 416 (also referred to as KAI-4169).
- Subject has received cinacalcet within the 4 weeks prior to screening labs (treatment with cinacalcet is prohibited during the study).
- Subject has an unstable medical condition based on medical history, physical examination, and routine laboratory tests, or is otherwise unstable in the judgment of the Investigator.
- Other Exclusion Criteria may apply

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01785849

Study Director: | MD | Amgen |
Publications:
Responsible Party: | Amgen |
ClinicalTrials.gov Identifier: | NCT01785849 |
Other Study ID Numbers: |
20120229 KAI-4169-006 ( Other Identifier: KAI Pharmaceuticals, Inc (wholly owned subsidiary of Amgen Inc.) ) 2012-002805-23 ( EudraCT Number ) |
First Posted: | February 7, 2013 Key Record Dates |
Results First Posted: | March 27, 2017 |
Last Update Posted: | August 26, 2019 |
Last Verified: | August 2019 |
Secondary Hyperparathyroidism (SHPT), chronic kidney disease (CKD), hemodialysis, parathyroid hormone (PTH), hypocalcemia, bone and mineral metabolism |
Neoplasm Metastasis Kidney Diseases Renal Insufficiency, Chronic Hyperparathyroidism Hyperparathyroidism, Secondary Urologic Diseases |
Neoplastic Processes Neoplasms Pathologic Processes Renal Insufficiency Parathyroid Diseases Endocrine System Diseases |