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NCT02591160 · ClinicalTrials.gov registry record · NA

Optimal HCTZ Cessation for Diagnosis of Hyperparathyroidism

A NA study, sponsored by University of Missouri-Columbia.

Completed
Registry status
NA
Development phase
2
Enrollment target

NCT02591160: Completed NA study, sponsored by University of Missouri-Columbia.

NCT02591160 is a NA study that has completed, run by University of Missouri-Columbia. The registered enrollment target is 2 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (100% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT02591160, a NA study, has completed, sponsored by University of Missouri-Columbia.

COMPLETED
Registry status
NA
Development phase
2 participants
Enrollment target

Study Summary

Primary hyperparathyroidism (PHPT) is the most common cause of hypercalcemia in the ambulatory setting. PHPT may be cured with surgery and indications for intervention have been defined and include urinary calcium/creatinine clearance. Hydrochlorothiazide (HCTZ), the most commonly prescribed medication for hypertension, reduces urinary calcium excretion and confounds urinary testing. As a result, it is universally recommended that thiazide diuretics be stopped in advance of urinary testing. To date, no studies are available to provide evidence-based guidance as to how long HCTZ must be held for urinary calcium excretion to return to steady state in PHPT. The objective of this study is to serially calculate urinary calcium/creatinine clearance ration in patients with suspected PHPT while holding HCTZ to determine the minimum duration of medication cessation necessary for urinary calcium clearance to reach steady state.

Primary Outcome

Determination of the HCTZ cessation window

Interventions

  • PROCEDURE HCTZ cessation

Trial Details

FieldValue
Enrollment Target 2 participants
Start Date 2015-05
Est. Completion 2017-09-13
Phase NA
University of Missouri-Columbia

291 total trials

What the finished NCT02591160 record still lists

NCT02591160 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 2 participants, a relatively small participant target, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (100% lower).

The record links to 0 conditions, and to 1 intervention - of which HCTZ cessation is the first listed.

NCT02591160 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT02591160 about?

NCT02591160 is a clinical study titled "Optimal HCTZ Cessation for Diagnosis of Hyperparathyroidism". Primary hyperparathyroidism (PHPT) is the most common cause of hypercalcemia in the ambulatory setting. PHPT may be cured with surgery and indications for intervention have been defined and include urinary calcium/creatinine clearance. Hydrochlorothiazide (HCTZ), the most commonly prescribed medicat...

What is the current status of trial NCT02591160?

This trial is currently completed. It is a NA study. The enrollment target is 2 participants. The study started on 2015-05. Estimated completion is 2017-09-13.

What interventions are being tested in trial NCT02591160?

The interventions under investigation include: HCTZ cessation (PROCEDURE).

Who is sponsoring clinical trial NCT02591160?

This trial is sponsored by University of Missouri-Columbia, which has 291 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT02591160's enrollment target sits among peer trials

2 1997th of 2000 the lowest of 2,000 other NA trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other NA trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT02591160, the US trial registry maintained by the National Library of Medicine. NCT02591160 (small enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.