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Treatment of Early Stage Renal Failure With Active Vitamin D or a Phosphate Binder.

An Open, Randomized, Crossover Phase 2 Pilot Study of Treatment of Stage 3B Renal Failure With Active Vitamin D or a Phosphate Binder to Evaluate the Effect on the FGF23 and PTH Levels.

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01231438
Enrollment
21
Registered
2010-11-01
Start date
2010-10-31
Completion date
2011-03-31
Last updated
2012-11-09

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

Conditions

Kidney Failure

Keywords

Renal failure stage 3B

Brief summary

Patients with reduced renal function normally develop hyperparathyroidism, which in turn is associated with increased cardiovascular risk and de-calcification. Hyperparathyroidism may be enhanced by an increased level of FGF23 which is often seen in the early stage of renal failure. This pilot study will investigate the FGF23-lowering effect of early initiation of treatment with a phosphate binder versus active vitamin D in an open crossover design.

Interventions

800mg t.i.d. over 2 weeks

DRUGEtalpha

0.25ug o.d. for 2 weeks

Sponsors

Rikshospitalet University Hospital
CollaboratorOTHER
Helse Stavanger HF
Lead SponsorOTHER_GOV

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Renal failure stage 3B * 25(OH)vitamin D level above 50 nmol/l * Age over 18 years * Written consent

Exclusion criteria

* Major surgery during the previous 6 months * Myocardial infarct during the previous 6 months * Unstable heart failure * Ongoing treatment for any malignancy * History of frequent infections * Pregnancy * Ongoing treatment with steroids, lithium or biphosphonates

Design outcomes

Primary

MeasureTime frame
FGF23 serum levelChange over 2 weeks of treatment

Secondary

MeasureTime frame
Phosphate serum levelChange over 2 weeks of therapy
CTX-1 serum levelChange over 2 weeks of therapy
PINP serum levelChange over 2 weeks of therapy
PTH serum levelChange over 2 weeks of therapy
Calcium serum levelChange over 2 weeks of therapy

Countries

Norway

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 26, 2026