Impact of Parathyroidectomy Versus Oral Cinacalcet on Bone Mineral Density in Patients on Peritoneal Dialysis With Advanced Secondary Hyperparathyroidism: The PROCEED Pilot Randomized Trial
Abstract
RATIONALE & OBJECTIVE: Parathyroidectomy and calcimimetics have been used to reduce fracture risk in patients with kidney failure and advanced secondary hyperparathyroidism (SHPT), but direct comparisons of these treatment approaches have not been implemented. This pilot study compared their effects on bone mineral density (BMD) in this patient population.
STUDY DESIGN: A prospective pilot open-label randomized trial.
SETTING & PARTICIPANTS: 65 patients receiving maintenance peritoneal dialysis with advanced SHPT recruited from 2 university-affiliated hospitals in Hong Kong.
INTERVENTIONS: Total parathyroidectomy with forearm autografting versus oral cinacalcet treatment for 12 months.
OUTCOME: Prespecified secondary end points including changes in BMD z and T scores of femoral neck, lumbar spine, and distal radius 12 months after treatment initiation and also categorized as osteopenia or osteoporosis according to the World Health Organization.
RESULTS: Both total parathyroidectomy and cinacalcet significantly improved BMD of the lumbar spine and femoral neck over 12 months, but the total parathyroidectomy group had a greater increase than the cinacalcet-treated group (P<0.001). The proportion of study participants classified as having osteopenia/osteoporosis by femoral neck T-score fell from 78.2% to 51.7% in the total parathyroidectomy group (P<0.001) and from 65.7% to 52.0% in cinacalcet-treated group after 12 months (P=0.7). The proportion of participants with a T-score…
How strong is the evidence?
Evidence Hub reads this as a randomized trial, done in people. Its evidence level is 2 of 5 (High · randomized trial). Randomized trials of a reasonable size are the strongest single-study design. Reported size: 65 participants or records.
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