ClinicalTrials.gg
Active, not recruitingNCT06499142ParakeetUpdated Jul 12, 2024

STP.168 Clinical Study Protocol Parakeet

An interventional study of Parakeet:The Parakeet Rapid Parathyroid Testing Kit is a rapid immunoassay designed to detect Parathormone (PTH) in a test sample. in Parathyroid; Anomaly, Parathyroid Dysfunction and Hyperparathyroidism, sponsored by Neurovision Medical Products Inc. Active, not recruiting at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-07-12.

Primary conditionHyperparathyroidismRegistry: Congenital AbnormalitiesReclassifiedWhy we changed it
Registry
Congenital Abnormalities — the first condition term the registry derived for this study.
ClinicalTrials.gg
Hyperparathyroidism
Why
  1. Congenital Abnormalities is a broad heading, used only when no more specific condition is named.
  2. The study's listed conditions name Hyperparathyroidism.
Confidence
High: the new condition is named in the study's own listed conditions. Of 351 hand-checked studies reclassified this way, 68% were exactly right and 84% in the right disease family; the registry's first term was right for 5% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by Neurovision Medical Products Inc · Not applicable, Interventional, and Other

From the registry’s dates

  • Primary completion was expected by Dec 2024, 1 year 10 months ago, but the record still lists the study as active, not recruiting.
  • Registered 6 months after the study started (first participant enrolled Dec 2023, registered Jun 2024).
Phase
Not applicable
Study type
Interventional
Enrollment
60
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 46 studies in Hyperparathyroidism with a site in United States — 4 open to participants now, 7 under way, none of them phase 3. Hyperparathyroidism · United States.

Planned enrollment
9th of 31
60 · median 30
Started
2023
with 1 other
No phase
11 of 46
none open now
Registered
43rd of 46
by date

Among the 46 studies in Hyperparathyroidism with a site in United States, this one is the 9th largest by planned enrollment of the 31 interventional ones, is one of 2 that started in 2023, is one of 11 with no phase, and was the 43rd registered.

By phase

46 studies; the count open now beside each. This study's row is marked.

Observational14 · 3 open
No phasethis study11 · 0 open
Phase 17 · 1 open
Phase 37 · 0 open
Phase 24 · 0 open
Phase 2/32 · 0 open
Phase 41 · 0 open

By the year they started

First in 1993; this study’s year is marked. 2 started in 2023.

Size and results

Median enrollment 30 across the 31 interventional studies, 80 across the 14 observational. Of the 34 that completed or were terminated, 18 (53%) have results posted.

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Watch this landscapeDownload CSVWith an account: a weekly mail of what changed among 46 studies in Hyperparathyroidism with a site in United States, or all of them as a file.
02

Study summary

STUDY PURPOSE

The purpose of this study is to demonstrate the performance of the Parakeet Rapid Parathyroid Testing Kit by comparing Parakeet results with histopathologic Diagnosis.

STUDY OBJECTIVES

To demonstrate the positive percent agreement (PPA) and negative percent agreement (NPA) of the Parakeet Rapid Parathyroid Testing kit test results in FNA from excised tissue during parathyroid surgery with Pathologic Diagnosis.

Read the detailed description

The Parakeet is a lateral flow cassette designed to aid in the detection of parathyroid gland by identifying tissue with parathyroid hormone levels > 60 pg./ml in a fine needle aspirate specimen. The FNA specimen of the target tissue is combined with running fluid and deposited into the sample well of a lateral flow cassette. Lateral flow occurs and the Test Line begins to darken within minutes if PTH is present in quantities > 60 pg./ml. At 5 minutes, a full visualization of the TL is done. A negative test (\< 60 pg./ml of PTH in the sample) shows darkening of the Control Line only. Absence of Control Line development indicates a defective test kit.

INTENDED USE

The Parakeet Rapid Parathyroid Testing Kit is an immunoassay lateral flow cassette intended to detect qualitative differences in extracellular concentration of parathyroid hormone in excised samples suspected of being parathyroid glands as an adjunct to current clinical methods, including histopathology, to locate the parathyroid glands.

INDICATIONS FOR USE

The Parakeet Rapid Parathyroid Testing Kit is indicated for use in adult patients where location of the parathyroid glands is medically necessary, such as in patients undergoing parathyroidectomy for Hyperparathyroidism.

03

Conditions studied

  • Parathyroid; Anomaly
  • Parathyroid Dysfunction
  • Hyperparathyroidism
  • Parathyroid Gland Adenoma

Keywords

  • Immunoassay Lateral Flow, Parathyroid gland, PTH, FNA
  • Parathyroid gland,
  • PTH,
  • FNA
04

In context

Hyperparathyroidism Reclassified

110 studies on the registry are indexed under Hyperparathyroidism; 12 are open to participants now.

This study's planned enrollment of 60 is above the median of 53 across 67 interventional studies indexed under Hyperparathyroidism.

Browse Hyperparathyroidism studies →

Lead sponsor

This is the only study on the registry with Neurovision Medical Products Inc as lead sponsor.

Compared within Hyperparathyroidism, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Congenital Abnormalities. The counts are of registry records indexed under each term, refreshed daily. How we classify →

05

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

Men and women

≥18 years of age Scheduled for Parathyroid surgery

Exclusion criteria

Exclusion Criteria:

Unable or unwilling to provide Subject has any condition that in the opinion of the investigator should preclude participation in the study

Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

06

Study design

Phase
Not applicable
Primary purpose
Other
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
60 participants (estimated)

Study arms

  • Experimental
    Parathyroidectomy

    Patients undergoing parathyroidectomy for Hyperparathyroidism

    Device: Parakeet:The Parakeet Rapid Parathyroid Testing Kit is a rapid immunoassay designed to detect Parathormone (PTH) in a test sample.

Interventions

  • DeviceParakeet:The Parakeet Rapid Parathyroid Testing Kit is a rapid immunoassay designed to detect Parathormone (PTH) in a test sample.

    The Parakeet Rapid Parathyroid Testing Kit is a rapid immunoassay designed to detect Parathormone (PTH) in a test sample. The Parakeet is a point of care test completely controlled by the surgeon and operating team. It uses the scientific principle of "Lateral Flow" of antibody-antigen-conjugate complexes being arrested in a "Test Line".

07

What researchers measure

Primary outcomes

  1. The participant's IVD PTH concentration is < 57 pg/ml and the pathology report will be negative for parathyroid gland. The participant's IVD PTH concentration is > 57 pg/ml and the pathology report will be positive for parathyroid gland.

    PT ID (visual): Visual Reading for FNA only; Positive (indicates a PTG), Negative (non-PTG). Qualitative variable, if the sample demonstrates a Test Line visual development, it is "Positive." If the Test Line does not demonstrate visual development this indicates less than the threshold of 60 pg./ml of PTH and it is considered negative (non-PTG) (Figure 5). The visual reading is by the tester and the surgeon is not notified. A faint or equivocal Test Line reading should be evaluated by the tester and repeated or other measures taken

    Time frame: 5 minutes

08

Study locations

1 site
  • Ventura County Medical center Santa Paula
    Ventura, California 93003, United States
09

References and documents

Publications

  • Barczynski M, Branstrom R, Dionigi G, Mihai R. Sporadic multiple parathyroid gland disease--a consensus report of the European Society of Endocrine Surgeons (ESES). Langenbecks Arch Surg. 2015 Dec;400(8):887-905. doi: 10.1007/s00423-015-1348-1. Epub 2015 Nov 5. PubMed 26542689 ↗
  • Obolonczyk L, Karwacka I, Wisniewski P, Sworczak K, Oseka T. The Current Role of Parathyroid Fine-Needle Biopsy (P-FNAB) with iPTH-Washout Concentration (iPTH-WC) in Primary Hyperparathyroidism: A Single Center Experience and Literature Review. Biomedicines. 2022 Jan 6;10(1):123. doi: 10.3390/biomedicines10010123. PubMed 35052802 ↗

Individual participant data

Plan to share: No

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Dec 2023 (actual). Primary completion is estimated for Dec 2024, 12 months after the start.

Of 18 interventional studies with no phase under Hyperparathyroidism, half reached primary completion within 31 months of starting (the median), counting those still running; a quarter within 11 and three quarters within 46. This study's planned 12 months is below that.

How these figures are worked out, and which studies are left out of them.

Registered
Jun 19, 2024
First posted
Jul 12, 2024
StartActual
Dec 18, 2023
Primary completionEst.
Dec 31, 2024
CompletionEst.
Jan 31, 2025
Last update
Jul 12, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jul 12, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT06499142
Lead sponsor
Neurovision Medical Products Inc
Responsible party
Christine Vergely (Director of Regulatory Affairs, Neurovision Medical Products Inc) — Principal investigator
First posted
Jul 12, 2024
Start date
Dec 18, 2023
Primary completion
Dec 31, 2024 (estimated)
Completion
Jan 31, 2025 (estimated)
Last update
Jul 12, 2024

Study contacts

Lee J Rea, Dr
study director · Neurovision Medical Product, Inc

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is active, not recruiting, as verified in Jul 2024. You cannot join it, but the record below documents what was studied.

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Discussion

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