Can Parathyroid Hormone Injections Reverse Glucocorticoid-induced Osteoporosis

Can PTH Reverse Glucocorticoid-induced Osteoporosis

Glucocorticoids are potent anti-inflammatory and immunosuppressive agents. However, prolonged use of these potent agents results in severe bone loss and osteoporotic fractures. Parathyroid hormone (1-34), when given as a daily injection has been found to dramatically increase bone mass in osteoporotic animals and postmenopausal women. The purpose of this study is to determine whether 2 years of daily PTH (1-34) injections will increase bone mass and reduce the development of new fractures. In addition, we will follow the study subjects for 2 more years to determine which type of anti-resorptive agent is required to maintain the newly formed bone.

We are enrolling postmenopausal women that are on chronic corticosteroid therapy (prednisone etc.) and have bone loss (osteopenia by DXA) to be a part of this four-year-long study. The patients will receive two-year therapy with either PTH (1-34) or placebo, and for the second part of the study subjects receive either estrogen and placebo or alendronate and placebo. We will measure bone gain by standard bone densitometry, special x-rays of the spine and hip, and serum and urine bone markers.

Study Overview

Status

Completed

Conditions

Study Type

Interventional

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • California
      • San Francisco, California, United States, 94110
        • San Francisco General Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Description

Inclusion Criteria:

  • Postmenopausal women on glucocorticoids (prednisone 5mg/d or greater
  • Osteopenia by T score of hip or lumbar spine of -2.0
  • All study subjects must be on a stable dose of estrogen/progesterone or raloxifene
  • Ambulatory and able to come to the clinical center 9 times over 2 years
  • Willing to sign an informed consent

Exclusion Criteria:

  • Generalized disease of the bone (other than glucocorticoid-induced osteoporosis), including hyperparathyroidism, hyperthyroidism, Paget's disease)
  • Diseases that affect bone metabolism (e.g. alcoholism, inflammatory bowel disease, malabsorption, renal disease (Cr2) or liver disease (transaminase level 2 times limit of normal)
  • Within the past 1 year, regular use of medications that are known to affect bone metabolism (e.g. anabolic steroids, anticoagulants, anticonvulsants, pharmacologic doses of vitamin D and vitamin A supplements).
  • History of drug abuse
  • Senile dementia, paraplegia and/or quadriplegia
  • Unstable rheumatic disease with clinically significant renal or central nervous system involvement.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Masking: Double

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Study Director: Qaiser Rehman, M.D., University of California at San Francisco

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

August 1, 1999

Study Completion

August 1, 2001

Study Registration Dates

First Submitted

March 17, 2000

First Submitted That Met QC Criteria

March 17, 2000

First Posted (Estimate)

March 20, 2000

Study Record Updates

Last Update Posted (Estimate)

March 2, 2010

Last Update Submitted That Met QC Criteria

March 1, 2010

Last Verified

March 1, 2010

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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