Clinical trialNCT00004361CompletedObservational

Study of the Relationship Between Calcium Levels and Intact Parathyroid Hormone (iPTH) in Adults With Repaired or Palliated Conotruncal Cardiac Defects

SponsorNational Center for Research Resources (NCRR)Enrollment150Conotruncal Cardiac DefectsHeart Defects, CongenitalHypoparathyroidismPulmonary AtresiaPulmonary Valve StenosisTetralogy of Fallot

View the registry record on ClinicalTrials.gov

Summary

The lay summary the sponsor registered on ClinicalTrials.gov.

OBJECTIVES: I. Identify latent hypoparathyroidism in normocalcemic adult survivors with repaired conotruncal cardiac defects, by evaluating parathyroid gland secretory function after induced hypocalcemia. II. Determine the relationship of parathyroid hormone secretion to microdeletions in the same region of chromosome 22q11 as found in patients with DiGeorge anomaly.

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Investigators

The overall officials registered on this study. Names that resolve to a FindMyKOL profile link to it; the rest are shown as registered.

Craig B. Langman
Ann & Robert H Lurie Children's Hospital of Chicago
Study Chair
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A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

No facility list is in our current data snapshot for this study. The registry record on ClinicalTrials.gov ↗ carries any published locations. Why? →

Drugs studied

The drug and biological interventions registered on this study, normalized to their RxNorm ingredient where possible.

Calcium gluconate →Sodium citrate

Linked drugs open the directory filtered to KOLs working with them.clinicaltrials.gov ↗

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start: 31 Jul 1995
Primary completion: —
Completion: —
Last update posted: 24 Jun 2005
Registered enrollment: 150
Registry id: NCT00004361

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Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 24 Aug 2026. Registry facts are shown as registered by the study sponsor; FindMyKOL does not interpret them.