Use of NPSP558 in the Treatment of Hypoparathyroidism (REPLACE)
|ClinicalTrials.gov Identifier: NCT00732615|
Recruitment Status : Completed
First Posted : August 12, 2008
Results First Posted : March 6, 2015
Last Update Posted : December 8, 2015
|Condition or disease||Intervention/treatment||Phase|
|Hypoparathyroidism||Drug: Placebo Drug: NPSP558||Phase 3|
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||124 participants|
|Intervention Model:||Parallel Assignment|
|Masking:||Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)|
|Official Title:||A Randomized, Double-Blind, Placebo-Controlled, Phase 3 Study to Investigate the Use of NPSP558, a Recombinant Human Parathyroid Hormone (rhPTH[1-84]) for the Treatment of Adults With Hypoparathyroidism|
|Study Start Date :||December 2008|
|Actual Primary Completion Date :||September 2011|
|Actual Study Completion Date :||November 2011|
Placebo Comparator: Placebo
Sterile water for injection
Placebo for subcutaneous injection
Experimental: 50, 75, 100 mcg NPSP558
Initial dose of 50mcg, to be titrated up to 75mcg and then 100mcg dependent upon response
Parathyroid hormone 50, 75, or 100 mcg injectable subcutaneously daily
- The Percentage of Subjects Who Met the Triple Efficacy Endpoint Criteria at Week 24. [ Time Frame: Week 24 of dosing ]The triple efficacy endpoint criteria were defined as at least a 50% reduction from the baseline in oral calcium dose and at least a 50% reduction from the baseline in active vitamin D dose and an albumin-corrected total serum calcium concentration that was maintained or normalized compared to the baseline value (≥ 7.5 mg/dL) and did not exceed the upper limit of the laboratory normal range. The analysis of primary efficacy endpoint was based on investigator prescribed data.
- Percentage Changes From Baseline in Daily Calcium Dose at Week 24. [ Time Frame: 24 Weeks ]The analysis of this endpoint was based on investigator prescribed data.
- Proportion of Subjects Who Achieved Independence From Active Vitamin D and an Oral Calcium Dose of ≤ 500 mg/Day at Week 24. [ Time Frame: 24 Weeks ]Subjects Who Achieved Independence from Active Vitamin D Usage and with Calcium Dose of 500 mg/day or less. This analysis was based on Investigator Prescribed Data.
- Percentage of Subjects With Any Clinical Symptoms of Hypocalcemia During Weeks 16-24. [ Time Frame: 8 Weeks ]Clinical symptoms were a selected group of adverse events that occurred during study weeks 16 through 24. The group of terms were defined by key opinion leaders and documented in study protocol.
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): NCT00732615
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|Study Director:||Hjalmar Lagast, M.D.||NPS Pharma|