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Study of the Influence of Dosages of 1-84 and 7-84 Fragments of Parathyroid Hormone Compared to Conventional Dosage on the Balance of Calcium and Phosphate in Hemodialysis (PTH)

Study of the Influence of Dosages of 1-84 and 7-84 Fragments of PTH Compared to Conventional Dosage on the Balance of Calcium and Phosphate in Hemodialysis

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02859220
Acronym
PTH
Enrollment
85
Registered
2016-08-09
Start date
2006-01-01
Completion date
2011-01-01
Last updated
2026-06-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hemodialysis Patients

Keywords

hemodialysis, PTH

Brief summary

This study included 80 patients with end stage renal disease requiring dialysis treatment to evaluate two techniques for the determination of parathyroid hormone (PTH) Objective: To evaluate whether the monitoring of hemodialysis patients by measurement of PTH 1-84 Complete (CAP =cyclase activating PTH) and the ratio (1-84 PTH (CAP)/7-84 PTH (CIP = cyclase inactivating PTH) with kit "Duo PTH Immunoradiometric Scantibodies" allows an improvement in the therapeutic management of abnormal calcium and phosphate, with a better match to the targets of current international recommendations, followed by the conventional intact PTH assay. Primary endpoint: For each patient, a score will be awarded based on the number of criteria (including calcium, phosphorus and calcium phosphate product) in the target international guidelines :0-1-2 or 3. The primary endpoint will be the average scores in both groups at the beginning and the end of the study, Main secondary endpoints: * Changes in the number of patients responding to international guidelines for each of the three parameters studied (serum phosphate, corrected calcium, phosphorus product) in the 2 groups, * Evolution of Elecsys intact PTH Roche in the 2 groups, * Salaries and changes in the number of drugs to normalize the phospho-calcium balance in each group received, * cardiovascular events (morbidity and cardiovascular mortality), * Total mortality. Statistical analysis: This is a randomized, two parallel arms. The investigators will compare the average number of criteria on calcium and phosphate in the target according to a Mann-Whitney. The analysis will be performed with the software Splus.

Interventions

OTHERDetermination of PTH following

Determination of PTH following: in group 1: intact PTH Elecsys Roche

OTHERDetermination of PTH following:

PTH 1-84 complete (PAC) report and CAP / CIP, the package "Duo PTH IRMA Scantibodies." The CIP is obtained by calculating the difference between total intact PTH and PTH 1-84 in the kit used.

Sponsors

Nantes University Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* replacement therapy by hemodialysis for at least three months in the hemodialysis center of Nantes University Hospital, * intact PTH ≥ 100 pg / mL during the visit of inclusion.

Exclusion criteria

* intact PTH \<100 pg / mL during the visit of inclusion * Life expectancy estimated at less than one year at the time of inclusion, because of a disease diagnosed prior to the initiation of the study, * bone pathology diagnosed prior to the initiation of the study that interfere with calcium and phosphate metabolism (myeloma, Paget ...).

Design outcomes

Primary

MeasureTime frameDescription
improving the therapeutic management of calcium and phosphate abnormalities by conventional PTHone yearShow that patients receiving a dose of complete PTH 1-84 (CAP) and the ratio PTH 1-84/7-84 more easily reach the objectives international guidelines on the three following parameters calcium and phosphate: phosphorus, corrected calcium and phosphorus product. For each patient, a score will be awarded based on the number of criteria (including calcium, phosphorus and calcium phosphate product) in the target international guidelines:0-1-2 or 3.

Countries

France

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 24, 2026