Comparing Pump With Subcutaneous Injection Delivery of PTH 1-34 in the Management of Chronic Hypoparathyroidism

This study has been completed.
Sponsor:
Information provided by:
National Institutes of Health Clinical Center (CC)
ClinicalTrials.gov Identifier:
NCT00743782
First received: August 28, 2008
Last updated: April 8, 2014
Last verified: April 2014
  Purpose

This study will evaluate the safety, biological activity, and pharmacokinetics of PTH delivered by subcutaneous injection compared with an infusion pump. We anticipate pump delivery of PTH will be more physiologic because it mimics normal parathyroid gland secretion of PTH. We expect that pump delivery will simultaneously normalize blood and urine calcium, phosphorus and magnesium levels with minimal or no fluctuations throughout the day. Pump therapy will require lower PTH doses and should normalize markers of bone turnover. We expect the improved metabolic control during pump therapy will be especially evident in patients with more severe forms of hypoparathyrodism where there is an unmet need for improved therapy.


Condition Intervention Phase
Hypoparathyroidism
Hypocalcemia
Drug: Synthetic Human Parathyroid Hormone 1-34
Phase 0

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Crossover Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: Comparing Pump vs. Subcutaneous Injection Delivery of PTH 1-34 in the Management of Chronic Hypoparathyroidism

Resource links provided by NLM:


Further study details as provided by National Institutes of Health Clinical Center (CC):

Primary Outcome Measures:
  • Assess the feasability of PTH 1-34 therapy via pump.

Secondary Outcome Measures:
  • This pilot study is being conducted to compare PTH therapy via pump vs. twice daily subcutaneous injections.

Enrollment: 24
Study Start Date: August 2008
Study Completion Date: April 2014
Intervention Details:
    Drug: Synthetic Human Parathyroid Hormone 1-34
    N/A
Detailed Description:

Prior studies (92-CH-0011) have been important in establishing synthetic human parathyroid hormone 1-34 (PTH) as a beneficial treatment for hypoparathyroidism, superior to conventional therapy with calcium and calcitriol. We are conducting a randomized crossover study comparing twice-daily subcutaneous injections vs. PTH pump therapy. We hypothesize that pump delivery of PTH 1-34, compared to twice-daily administration, will provide smoother metabolic control of serum mineral levels and normalization of urine mineral excretion. The two arms will be divided into an inpatient and an outpatient phase. There will be three inpatient admissions, baseline, 3 months, and 6 months. Subjects will be randomized to either pump therapy or to twice daily injections at the beginning of the study and will cross over to the alternate PTH delivery system (injections vs. pump) at the conclusion of the initial 3-month treatment period.

Patients between 10 and 70 years of age who have had chronic hypoparathyroidism for at least 1 year may be eligible for this study. Participants have two 10- 12-day hospital admissions and one 5-day admission. The first two inpatient admissions are separated by 3-month outpatient periods. Outpatient monitoring will require weekly blood tests and monthly urine tests to monitor mineral levels. After third hospital admission, patients will be placed on conventional therapy.

  Eligibility

Ages Eligible for Study:   7 Years to 70 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria
  • INCLUSION CRITERIA:

This study will include patients of both genders (ages 7-70) with biochemically confirmed chronic hypoparathyroidism of at least one year duration. Twenty-four subjects will be enrolled.

EXCLUSION CRITERIA:

Subjects who meet any of the following criteria are not eligible for the study:

  • Pregnancy
  • Patients who are calcium infusion dependent and/or do not respond to calcitriol therapy to maintain normal levels of serum calcium will be excluded.
  • Seizure disorder requiring antiepileptic medications.
  Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT00743782

Locations
United States, Maryland
National Institutes of Health Clinical Center, 9000 Rockville Pike
Bethesda, Maryland, United States, 20892
Sponsors and Collaborators
Investigators
Principal Investigator: Karen K Winer, M.D. Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
  More Information

Publications:
ClinicalTrials.gov Identifier: NCT00743782     History of Changes
Other Study ID Numbers: 080203, 08-CH-0203
Study First Received: August 28, 2008
Last Updated: April 8, 2014
Health Authority: United States: Federal Government

Keywords provided by National Institutes of Health Clinical Center (CC):
Hypoparathyroidism
Parathyroid Hormone 1-34

Additional relevant MeSH terms:
Hypocalcemia
Hypoparathyroidism
Calcium Metabolism Disorders
Metabolic Diseases
Water-Electrolyte Imbalance
Parathyroid Diseases
Endocrine System Diseases
Hormones
Hormones, Hormone Substitutes, and Hormone Antagonists
Physiological Effects of Drugs
Pharmacologic Actions

ClinicalTrials.gov processed this record on April 15, 2014