Evidence map›Paper›PMID 18349061›Full record

Trial reportThe Journal of clinical endocrinology and metabolism2008

Randomized trial of once-weekly parathyroid hormone (1-84) on bone mineral density and remodeling.

Dennis M Black, Mary L Bouxsein, Lisa Palermo, Joan A McGowan, David C Newitt, Eyal Rosen, Sharmila Majumdar, Clifford J Rosen, PTH Once-Weekly Research (POWR) Group

Registry-linked trialOpen access · bronzeAbstract readRandomized Controlled Trial
In one paragraph

Trial report in The Journal of clinical endocrinology and metabolism, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00853723 (Comparison of 3 Month PTHrP), which is not on this map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
5.1field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT00853723 phase2completednot on this mapstarted 2009, after this paper: background citation

Comparison of 3 Month PTHrP(1-36) and PTH(1-34) on Post-Menopausal Osteoporosis

TypeinterventionalSponsorUniversity of PittsburghRan2009 to 2012Enrolled105ConditionsOsteoporosisArmsParathyroid hormone related protein (1-36), Parathyroid hormone related protein(1-36), Parathyroid hormone (1-34)
3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 48 citations in OpenAlex.

  1. Markers of bone turnover for the prediction of fracture risk and monitoring of osteoporosis treatment: a need for international reference standards.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2011
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  11. MRI assessment of bone structure and microarchitecture.Journal of magnetic resonance imaging : JMRI · 2017
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  17. Parathyroid hormone stimulates circulating osteogenic cells in hypoparathyroidism.The Journal of clinical endocrinology and metabolism · 2011
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 5 institutions in 1 country.

Dennis M BlackDepartment of Epidemiology and Biostatistics, University of California-San Francisco, 185 Berry Street, San Francisco, CA 94107, USA. dblack@psg.ucsf.edu
Mary L Bouxsein
Lisa Palermo
Joan A McGowan
David C Newitt
Eyal Rosen
Sharmila Majumdar
Clifford J Rosen
PTH Once-Weekly Research (POWR) Group
University of California, San Francisco · USBeth Israel Deaconess Medical Center · USHarvard University · USNational Institute of Arthritis and Musculoskeletal and Skin Diseases · USSt. Joseph Hospital · US

Funding

PILOT STUDY IN THE USE OF PTH ONCE WEEKLY FOR TREATMENT OF OSTEOPOROSI-264032268N01AR032268 · NIAMS · UNIVERSITY OF CALIFORNIA SYS OFFICE/PRES · 2003 to 2005
–
NIAMS NIH HHS N01 AR032268NIAMS NIH HHS N01 AR 32268
6 · The paper itself

Abstract

contextDaily PTH administration increases bone mineral density (BMD) and reduces fracture risk. However, cost and compliance significantly limit clinical use.

objectiveOur objective was to determine whether less frequent PTH administration increases lumbar spine BMD. PARTICIPANTS, DESIGN, AND

settingFifty postmenopausal women ages 45-70 yr with femoral neck BMD T-score between -1.0 and -2.0 participated in a double-blind, randomized, placebo-controlled trial at St. Joseph Hospital, Bangor, ME.

interventionSubjects received sc injections of daily PTH(1-84) (100 mug) or placebo for 1 month, followed by weekly injections (PTH or placebo) for 11 months. OUTCOMES: Change in lumbar spine dual-energy x-ray absorptiometry areal BMD (primary) was assessed. Secondary outcomes included volumetric BMD at spine and hip by quantitative computed tomography, trabecular bone microarchitecture by magnetic resonance imaging of distal radius, and biochemical bone turnover markers.

resultsAt 12 months, lumbar spine areal BMD increased 2.1% in PTH-treated women compared with placebo (P = 0.03). Vertebral trabecular volumetric BMD increased 3.8% in PTH-treated women compared with placebo group (P = 0.08). PTH-treated women also had higher distal radial trabecular bone volume, number, and thickness compared with placebo-treated women (P < 0.04). After 1 month of daily PTH, N-terminal propeptide of type I collagen (P1NP) was markedly increased compared with placebo (P < 0 .0001), and a difference persisted, although lessened, throughout the study. Bone resorption indices were unchanged in PTH-treated women and were reduced in the placebo group.

conclusionOnce-weekly PTH after 1 month of daily treatment increases spine BMD, radial trabecular bone, and bone formation markers in postmenopausal women. These results suggest that less frequent alternatives to daily PTH dosing for 2 yr could be effective. Additional studies are required to define the optimal frequency of PTH administration.

Indexed as

AgedAlgorithmsBone DensityBone Density Conservation AgentsBone RemodelingCalciumDouble-Blind MethodDrug Administration ScheduleFemaleFemurHipHumansMiddle AgedOsteoporosis, PostmenopausalParathyroid HormonePlacebosBone Density Conservation AgentsCalciumParathyroid HormonePlacebos

Identifiers

PMID18349061
PMCPMC2435646
OpenAlexW2115500280

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.