{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,8]],"date-time":"2026-10-08T10:08:52Z","timestamp":1791454132137,"version":"4.3.3"},"reference-count":32,"publisher":"Oxford University Press (OUP)","issue":"5","content-domain":{"domain":["eje.bioscientifica.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2015,5]]},"abstract":"<jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>Primary hyperparathyroidism (PHPT) is diagnosed by the presence of hypercalcemia and elevated or nonsuppressed parathyroid hormone (PTH) levels. Although surgery is usually curative, some individuals fail or are unable or unwilling to undergo parathyroidectomy. In such individuals, targeted medical therapy may be of value. Cinacalcet normalized calcium level and lowered PTH in patients with PHPT in several phase 2 and open-label studies. We compared cinacalcet and placebo in subjects with PHPT unable to undergo parathyroidectomy.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Design<\/jats:title>\n                    <jats:p>Phase 3, double-blind, multi centere, randomized, placebo-controlled study.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Sixty-seven subjects (78% women) with moderate PHPT were randomized (1:1) to cinacalcet or placebo for \u226428 weeks.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Main outcome measure<\/jats:title>\n                    <jats:p>Achievement of a normal mean corrected total serum calcium concentration of \u226410.3\u200amg\/dl (2.575\u200ammol\/l).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Baseline median (quartile 1 (Q1), Q3) serum PTH was 164.0 (131.0, 211.0) pg\/ml and mean (\n                      <jats:sc>s.d<\/jats:sc>\n                      .) serum Ca was 11.77 (0.46) mg\/dl. Serum Ca normalized (\u226410.3\u200amg\/dl) in 75.8% of cinacalcet- vs 0% of placebo-treated subjects (\n                      <jats:italic>P<\/jats:italic>\n                      &lt;0.001). Corrected serum Ca decreased by \u22651.0\u200amg\/dl from baseline in 84.8% of cinacalcet- vs 5.9% of placebo-treated subjects (\n                      <jats:italic>P<\/jats:italic>\n                      &lt;0.001). Least squares mean (\n                      <jats:sc>s.e.m<\/jats:sc>\n                      .) plasma PTH change from baseline was \u221223.80% (4.18%) (cinacalcet) vs \u22121.01% (4.05%) (placebo) (\n                      <jats:italic>P<\/jats:italic>\n                      &lt;0.001). Similar numbers of subjects in the cinacalcet and placebo groups reported adverse events (AEs) (27 vs 20) and serious AEs (three vs four). Most commonly reported AEs were nausea and muscle spasms.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>These results demonstrate that cinacalcet normalizes serum calcium in this PHPT population and appears to be well tolerated.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1530\/eje-14-0877","type":"journal-article","created":{"date-parts":[[2015,1,31]],"date-time":"2015-01-31T02:00:42Z","timestamp":1422669642000},"page":"527-535","update-policy":"https:\/\/doi.org\/10.1530\/crossmarkpolicy-1","source":"Crossref","is-referenced-by-count":79,"title":["Cinacalcet normalizes serum calcium in a double-blind randomized, placebo-controlled study in patients with primary hyperparathyroidism with contraindications to surgery"],"prefix":"10.1093","volume":"172","author":[{"given":"Aliya","family":"Khan","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"John","family":"Bilezikian","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Henry","family":"Bone","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrey","family":"Gurevich","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Peter","family":"Lakatos","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Waldemar","family":"Misiorowski","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Liudmila","family":"Rozhinskaya","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marie-Louise","family":"Trotman","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mikl\u00f3s","family":"T\u00f3th","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","reference":[{"issue":"6","key":"1_16247450","doi-asserted-by":"publisher","first-page":"2036","DOI":"10.1210\/jc.81.6.2036","volume":"81","author":"Silverberg","year":"1996","journal-title":"Journal of Clinical Endocrinology &amp; 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