NCT05217576

Brief Summary

The NBM-200 is a portable Hemoglobin and oximetry monitor, based on occlusion spectroscopy technology, for non-invasive spot checking of hemoglobin (Hb), estimated Hematocrit (Hct), SpO2 and pulse rate. The NBM-200 includes a reusable ring-shaped sensor probe that fits on the patient's finger, and a portable desktop monitor that calculates and displays the measurement result. The sensor probe consists of a multi-wavelength optical measuring system and inflatable cuff employing pneumatic tissue manipulation. Blood flow in the finger can be briefly occluded and the resulting changes in its optical behavior are analyzed to provide accurate measurements of Hb.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
387

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Sep 2018

Shorter than P25 for not_applicable

Geographic Reach
1 country

3 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 21, 2018

Completed
1 month until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 2, 2018

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 2, 2018

Completed
2.9 years until next milestone

First Submitted

Initial submission to the registry

September 9, 2021

Completed
5 months until next milestone

First Posted

Study publicly available on registry

February 1, 2022

Completed
Last Updated

February 1, 2022

Status Verified

January 1, 2022

Enrollment Period

1 month

First QC Date

September 9, 2021

Last Update Submit

January 20, 2022

Conditions

Outcome Measures

Primary Outcomes (1)

  • Bias

    The mean bias between the NBM-200 and HemoCue readings and the laboratory reference

    24 hours

Study Arms (2)

Comparison

OTHER

Comparison study: The participants (at least 300) will be tested once with each of the 3 devices. First, a measurement with the NBM-200 will be performed according to the user manual. The best finger to use, in order of preference: 1) right thumb 2) left thumb 3) right index 4) left index. The POC capillary test will follow the NBM-200 test, and the venous test will be performed last. A venous blood sample will be obtained from all participants in the comparison study, even if a subject is designated to donate and is deferred from donation because of low hemoglobin.

Device: NBM-200

Precision A & B

OTHER

Precision study: 1. At least 12 subjects will be tested 6 consecutive times with the NBM-200, on either the right or left thumb, and then 6 times with the capillary device (with a separate finger-prick for each test). 2. At least 3 males and 3 females at 2 study sites (total of 12), preferably with hemoglobin levels close to the cutoff levels of 12.5 g/dL for females and 13 g/dL for males. Each subject will be tested on each of their right and left thumbs and indices (4 fingers) using at least two operators and two NBM-200 instruments on each finger. A laboratory test with venous blood is not required for participants in the precision study.

Device: NBM-200

Interventions

NBM-200DEVICE

Finger Prick and Venipuncture

Also known as: HemoCue-301-Hb
ComparisonPrecision A & B

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Regular donors and volunteers

You may not qualify if:

  • Pregnancy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

Palm Harbor Donor Center

Palm Harbor, Florida, 34684, United States

Location

OneBlood St. Pete Main Donor Center

St. Petersburg, Florida, 33716, United States

Location

Tampa- Dale Mabry OneBlood Donor Center

Tampa, Florida, 33624, United States

Location

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 9, 2021

First Posted

February 1, 2022

Study Start

September 21, 2018

Primary Completion

November 2, 2018

Study Completion

November 2, 2018

Last Updated

February 1, 2022

Record last verified: 2022-01

Data Sharing

IPD Sharing
Will not share

At the conclusion of the study, the data will be published in reputable clinical journals.

Locations