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Effect of parathyroid hormone (1-34) on fractures and bone mineral density in postmenopausal women with osteoporosis

Plain-language guide to PMID 11346808 (2001): placebo-controlled randomized controlled trial study of Teriparatide and Parathyroid Hormone (PTH 1-84) in 1637 women, osteoporosis and bone density.

Key Facts

PMID
11346808
Journal
The New England journal of medicine
Year
2001
Study type
Randomized Controlled Trial
Authors
Neer RM et al. (12 authors)
DOI
10.1056/NEJM200105103441904

What This Study Did, in Plain Language

What Was Tested

The paper reports a study of Teriparatide and Parathyroid Hormone (PTH 1-84) in the context of osteoporosis and bone density, published as a randomized controlled trial.

Who Took Part

The study group was 1637 women.

PubMed tags the participants as women only.

The researchers randomly assigned 1637 postmenopausal women with prior vertebral fractures to receive 20 or 40 microg of parathyroid hormone (1-34) or placebo, administered subcutaneously by the women daily.

The researchers obtained vertebral radiographs at base line and at the end of the study (median duration of observation, 21 months) and performed serial measurements of bone mass by dual-energy x-ray absorptiometry.

How the Study Was Run

The design is described as randomized and placebo-controlled.

Random assignment meant chance, not the researchers, decided who got Teriparatide and who got the comparison, which limits bias.

Some women received a placebo instead of Teriparatide, giving a reference point.

What Was Measured

PubMed files the paper under topics including Bone Density, Femur, Fractures, Bone, Lumbar Vertebrae, Osteoporosis, Postmenopausal, Spinal Fractures and Teriparatide.

What This Means in Plain Language

The paper is a randomized and placebo-controlled study of Teriparatide and Parathyroid Hormone (PTH 1-84) in 1637 women in people with osteoporosis and bone density.

With several hundred people or more, it is a fairly large study for this kind of research.

Its findings take up roughly 7 sentences of the abstract and are left out here on purpose; the source paper is the place to read them.

The publication is from 2001 (The New England journal of medicine), a journal based in United States.

More context: the Teriparatide compound page and the Parathyroid Hormone (PTH 1-84) compound page, Osteoporosis and bone density research.

Our Notes on the Compounds

Teriparatide: A parathyroid hormone fragment, PTH(1-34), with human trials and approved-pen labeling; the research vial is not the approved pen.

Parathyroid Hormone (PTH 1-84): The 84-amino-acid hormone that raises blood calcium; full-length PTH (Natpara) has been used in hypoparathyroidism. Teriparatide is its 1-34 fragment.

Related Pages

Source: PubMed record. This explanation is written by PeptideWhiz from the public record. For research and education only. Not medical advice; no dosing information is given.