PseudohypoparathyroidismNCT00004661
Study of the Regulation of Parathyroid Hormone Secretion in Pseudohypoparathyroidism
An observational study of Pseudohypoparathyroidism, run by National Center for Research Resources (NCRR).
Trial summary
OBJECTIVES: Determine the relationship between serum calcium concentrations and parathyroid hormone secretion in patients with pseudohypoparathyroidism. Read more about this study
- Who is it for?
- Ages 12 years and older
- Conditions the study is for
- Pseudohypoparathyroidism
- How many people
- 20 participants
- Where
- No sites listed yet
- Study dates
- May 1993to not given
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 12 years and older
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
PROTOCOL ENTRY CRITERIA:
--Disease Characteristics-- Pseudohypoparathyroidism, i.e.: Renal resistance to parathyroid hormone OR Albright hereditary osteodystrophy No other illness unless related to pseudohypoparathyroidism No pregnant women
About this study
OBJECTIVES:
Determine the relationship between serum calcium concentrations and parathyroid hormone secretion in patients with pseudohypoparathyroidism.
Read the detailed description
PROTOCOL OUTLINE:
Patients are tested for parathyroid hormone response following sequential graded intravenous infusions of sodium citrate and calcium gluconate. Assays include ionized calcium and intact parathyroid hormone.
- Conditions
- Pseudohypoparathyroidism
- Keywords
- endocrine disorders, pseudohypoparathyroidism, rare disease
- Medical subject headings
- Pseudohypoparathyroidism, Endocrine System Diseases, Rare Diseases
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted25 Feb 2000 (estimated)
- Study startMay 1993
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for PseudohypoparathyroidismStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Enrolment
- 20 participants
Sponsor and investigators
- Lead sponsor
- National Center for Research Resources (NCRR)
- Sponsor type
- US National Institutes of Health
- Collaborators
- University of California, Los Angeles
- Investigators
- Mitchell E. Geffner, Study chair, University of California, Los Angeles
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00004661
- Sponsor's protocol ID
- 199/11909
- Other IDs
- UCLA-541
- Status last verified
- Dec 2001
- First submitted
- 24 Feb 2000
- Last updated
- 24 Jun 2005
- Results posted
- No
Study at a glance
From the registry record, last updated by the sponsor on 24 Jun 2005. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Study of the Regulation of Parathyroid Hormone Secretion in Pseudohypoparathyroidism
- ClinicalTrials.gov ID
- NCT00004661
- Acronym / sponsor ID
- 199/11909
- Conditions
- Pseudohypoparathyroidism
- Keywords
- endocrine disorders, pseudohypoparathyroidism, rare disease
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 20 participants
- Lead sponsor
- National Center for Research Resources (NCRR)US National Institutes of Health
- Collaborators
- University of California, Los Angeles
- Study start
- May 1993
- First posted
- 25 Feb 2000 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
OBJECTIVES:
Determine the relationship between serum calcium concentrations and parathyroid hormone secretion in patients with pseudohypoparathyroidism.
Detailed description
PROTOCOL OUTLINE:
Patients are tested for parathyroid hormone response following sequential graded intravenous infusions of sodium citrate and calcium gluconate. Assays include ionized calcium and intact parathyroid hormone.
Study design
Who may qualify
- Ages
- 12 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Not reported in the source record.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 24 Jun 2005.
Related trials for Pseudohypoparathyroidism
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Natural History Study of Parathyroid Disorders
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German Hypoparathyroidism Registry
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Active, not recruitingPhase 2
Theophylline Treatment for Pseudohypoparathyroidism
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Enrolling by invitationPhase 2
Theophylline for Treatment of Pseudohypoparathyroidism
Pseudohypoparathyroidism, Pseudohypoparathyroidism Type 1a
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Setmelanotide to Treat Obesity in a Patient With Pseudohypoparathyroidism Type 1a (PHP1a)
Pseudohypoparathyroidism Type 1a, Obesity
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Mitchell E. Geffner study chair
University of California, Los Angeles
Questions about this trial
What is this clinical trial studying?
An observational study of Pseudohypoparathyroidism, run by National Center for Research Resources (NCRR).
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 24 Jun 2005. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 24 Jun 2005.