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Glucotrack Announces Publication of Peer-Reviewed Study In The Journal of Diabetes Research Demonstrating Long-Term Accuracy and Stability of Continuous Blood Glucose Monitoring Technology

(Positive)
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Glucotrack (Nasdaq: GCTK) published a peer-reviewed Journal of Diabetes Research study reporting long-term accuracy and stability of its fully implantable continuous blood glucose monitor in an in-vivo ovine model.

The study implanted 34 devices in 17 sheep for up to 240 days, reporting a weighted average MARD 6.8%, consistent sensing, and no device-related adverse safety events; company also cites first-in-human MARD 7.7% with 99% data capture.

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Positive

  • MARD 6.8% measured across 79 IVGTTs in ovine study
  • Devices maintained consistent sensing for up to 240 days in vivo
  • No device-related adverse safety events observed in the ovine study
  • First-in-human MARD 7.7% with 99% data capture cited

Negative

  • Findings are preclinical in an ovine model; human performance may differ
  • IDE submission with FDA is described as ongoing; IDE clearance not yet achieved

News Market Reaction – GCTK

-7.26%
16 alerts
-7.26% Session close to close
-13.0% Trough in 24 hr 22 min
$1.79M Market Cap
0.0x Rel. Volume

In the Apr 30 session, GCTK declined 7.26%, reflecting a notable negative market reaction. Argus tracked a trough of -13.0% from its starting point during tracking. Our momentum scanner triggered 16 alerts that day, indicating notable trading interest and price volatility.

Data tracked by StockTitan Argus on the day of publication.

Market Context

The stock moved -7.3% in the session following this news. A negative reaction despite favorable data...
Analysis

The stock moved -7.3% in the session following this news. A negative reaction despite favorable data, including a 6.8% MARD over 240 days and prior human MARD of 7.7% with 99% data capture, would fit the company’s pattern of selling into good news. Market participants also faced overhang from 3,224,803 registered resale shares, about 354% of earlier shares outstanding, plus prior going‑concern disclosures. Together, these capital-structure and risk considerations could outweigh clinical optimism in the short term.

Key Figures

Study duration: 240 days Devices implanted: 34 devices Animal cohort: 17 adult sheep +4 more
7 metrics
Study duration 240 days In‑vivo ovine CBGM performance evaluation period
Devices implanted 34 devices CBGM systems implanted in ovine model
Animal cohort 17 adult sheep In‑vivo ovine study sample size
Accuracy (MARD) 6.8% Weighted average MARD across study intravenous glucose tolerance tests
Glucose tolerance tests 79 tests Intravenous glucose tolerance tests conducted during ovine study
First-in-human MARD 7.7% Accuracy reported in first‑in‑human clinical study
Data capture rate 99% First‑in‑human study data capture for CBGM system

Historical Context

5 past events · Latest: Apr 21 (Positive)
Pattern 5 events
Date Event Sentiment 24h Move Catalyst
Apr 21 Peer-reviewed study Positive -4.0% Publication on long-life sensor design supporting multiyear implantable CBGM feasibility.
Mar 30 Earnings report Positive -14.1% 2025 financials, new patents, private placement, and IDE filing and trial timing plans.
Mar 27 IDE planning Positive -9.2% Plan to file IDE in Q2 2026 backed by Brazil and Australia study data.
Mar 10 Conference presentation Positive -2.4% LSI USA ’26 presentation highlighting CBGM technology and U.S. commercialization plans.
Jan 29 Patent issuance Positive -33.4% USPTO issuance of three patents covering sensor chemistry and device design.

24h Move is the share-price change in the day after each event; other market factors may also have contributed.

Pattern Detected

Recent historically positive milestones for Glucotrack have often been followed by negative 24-hour price reactions, suggesting a pattern of selling into good news.

Recent Company History

Over the past six months, Glucotrack has reported multiple milestones around its implantable CBGM platform, including USPTO patent issuances on Oct–Nov 2025, IDE planning and trial updates in Q1 2026, and prior peer‑reviewed publications on long‑life sensor design (Apr 7, 2026). Despite generally constructive clinical, regulatory, and IP progress, each of these five news events saw negative 24‑hour price reactions, indicating repeated divergence between fundamentally positive updates and short‑term trading behavior leading into today’s publication.

Key Terms

continuous blood glucose monitoring, cbgm, in-vivo, intravascular, +4 more
8 terms
continuous blood glucose monitoring medical
"continuous blood glucose monitoring (CBGM) system in an in-vivo ovine model."
A continuous blood glucose monitoring system is a wearable sensor and accompanying device or app that measures a person’s blood-sugar level frequently throughout the day and night, sending real-time readings and alerts for highs or lows. For investors, these systems matter because they can drive steady product sales, recurring data or service revenue, and influence healthcare costs and treatment choices the same way a smart thermostat changes heating habits—wider adoption can reshape the market for diabetes care.
cbgm medical
"Company’s Continuous Blood Glucose Monitoring (CBGM) Technology Over 240 Days"
Capillary blood glucose monitoring (CBGM) is the common finger‑stick method that measures blood sugar from a tiny drop of capillary blood using a portable meter and test strip. For investors, CBGM matters because it drives demand, regulation and reimbursement in the diabetes device market—accuracy, cost and convenience determine which products succeed, much like fuel efficiency and price steer car buyers.
in-vivo medical
"long-term accuracy and stability of the Company’s fully implantable ... system in an in-vivo ovine model."
In-vivo describes tests or experiments carried out inside a living organism — for example in animals or humans — rather than in a dish or tube. Investors care because in-vivo results provide stronger evidence about how a drug, device or treatment behaves in real biological systems, affecting safety, effectiveness and the likelihood of regulatory approval; think of it like road-testing a prototype instead of only bench checks.
intravascular medical
"In Vivo Evaluation of a Novel Long-Term Intravascular Implantable Continuous Blood Glucose Monitor"
Intravascular describes anything that takes place inside a blood vessel—artery, vein or capillary—such as a drug given directly into the bloodstream or a device placed within a vessel. For investors, intravascular approaches matter because they can change how quickly and precisely a treatment works, affect safety profiles and regulatory review, and often drive demand for specialized medical devices or therapies the way a new fitting changes flow in a building’s plumbing.
intravenous glucose tolerance tests medical
"Mean Absolute Relative Difference (MARD) of 6.8% across 79 intravenous glucose tolerance tests"
A test where a measured dose of sugar is injected into a vein and blood is sampled over time to see how quickly the body clears the sugar and how much insulin is produced. Think of it like pouring a set amount of water into a sink and timing how fast the drain and the plug together remove it. For investors, results indicate how well diabetes treatments or metabolic drugs are working, influencing trial success, regulatory chances and market value.
mean absolute relative difference medical
"Results demonstrated a weighted average Mean Absolute Relative Difference (MARD) of 6.8%"
Mean absolute relative difference (MARD) is the average of the absolute percent differences between predicted and actual values, calculated by taking the absolute value of each forecast error divided by the actual value and then averaging those percentages. For investors it measures how far forecasts, model outputs or quoted prices typically stray from reality, acting like an average ‘percent-off’ score that helps compare and trust different forecasts or data sources—similar to averaging how much multiple recipes’ portions differ from the intended serving size.
mard medical
"Results demonstrated a weighted average Mean Absolute Relative Difference (MARD) of 6.8%"
MARD (Mean Absolute Relative Difference) is a numerical measure of how far, on average, readings from a medical sensor or diagnostic device differ from a reference or true value, expressed as a percentage. Investors care because a lower MARD means more reliable and competitive products—similar to a scale that consistently shows weight close to the true number—affecting product adoption, regulatory acceptance and commercial success.
investigational device exemption regulatory
"As we advance towards our IDE submission with the FDA, these results support our continued progression"
An investigational device exemption (IDE) is a regulatory permission that allows a medical device maker to test an unapproved device in people so the device’s safety and effectiveness can be studied. For investors, an IDE matters because it marks a formal step toward regulatory approval—like getting a temporary test-drive permit—and influences clinical cost, timelines, and the likelihood a device will reach the market and generate revenue.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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In-Vivo Ovine Study Demonstrates Sustained Performance Of Company’s Continuous Blood Glucose Monitoring (CBGM) Technology Over 240 Days, Reinforces Path to Key IDE Submission

RUTHERFORD, N.J., April 30, 2026 (GLOBE NEWSWIRE) -- Glucotrack, Inc. (Nasdaq: GCTK) (“Glucotrack” or the “Company”), a medical technology company focused on the design, development, and commercialization of novel technologies for people with diabetes, today announced the publication of a peer reviewed scientific article in The Journal of Diabetes Research on the long-term accuracy and stability of the Company’s fully implantable continuous blood glucose monitoring (CBGM) system in an in-vivo ovine model.

The study, titled “In Vivo Evaluation of a Novel Long-Term Intravascular Implantable Continuous Blood Glucose Monitor in an Ovine Model: A Glucotrack™ Inc. Investigation,” (Tapsak, M. A. et al.), evaluated the in-vivo performance of the CBGM in an ovine model over periods of up to 240 days. The study examined 34 devices that were successfully implanted into 17 adult sheep. Results demonstrated a weighted average Mean Absolute Relative Difference (MARD) of 6.8% across 79 intravenous glucose tolerance tests conducted during the study period, demonstrating excellent accuracy. The devices maintained consistent glucose sensing performance, with no device-related adverse safety events observed, over the up to 240-day study period. The full publication is available online here.

“The publication of this peer-reviewed study in the Journal of Diabetes Research provides externally validated evidence of the long-term performance of our CBGM technology,” said Dr. Paul V. Goode, President and Chief Executive Officer of Glucotrack. “Sustained accuracy and consistent device performance over 240 days in a preclinical model reinforces our confidence in the platform’s design. As we advance towards our IDE submission with the FDA, these results support our continued progression toward further clinical development and eventual commercialization.”

These data further support the accuracy and stability of Glucotrack’s CBGM system, which demonstrated a MARD of 7.7% with a 99% data capture rate and no procedure- or device-related serious adverse events in its first-in-human clinical study. Together with the recently published in-vitro study on the long-term stability of the Glucotrack glucose sensor chemistry, these data contribute to a growing body of peer-reviewed evidence supporting the feasibility of Glucotrack's long-life CBGM platform.

For more information about Glucotrack's CBGM, visit www.glucotrack.com.

About Glucotrack, Inc.

Glucotrack, Inc. (NASDAQ: GCTK) is focused on the design, development, and commercialization of novel technologies for people with diabetes. The Company is currently developing a long-term implantable continuous blood glucose monitoring system for people living with diabetes.

Glucotrack’s Continuous Blood Glucose Monitor (CBGM) is a long-term, implantable system that continually measures blood glucose levels with a sensor longevity of 3 years, no on-body wearable component and with minimal calibration. The Glucotrack CBGM is an Investigational Device and is limited by federal (or United States) law to investigational use.

For more information, please visit http://www.glucotrack.com. Information on the Company’s website does not constitute a part of and is not incorporated by reference into this press release.

Forward-Looking Statements

This news release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Statements contained in this news release that are not statements of historical fact may be deemed to be forward-looking statements. Without limiting the generality of the foregoing, words such as “anticipate”, “believe”, “expect”, “plan” and “will” are intended to identify forward-looking statements. Such forward-looking statements are based on the beliefs of management, as well as assumptions made by, and information currently available to, management. These statements relate only to events as of the date on which the statements are made, and Glucotrack undertakes no obligation to publicly update any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law. All of the forward-looking statements made in this press release are qualified by these cautionary statements, and there can be no assurance that the actual results anticipated by Glucotrack will be realized or, even if substantially realized, that they will have the expected consequences to or effects on us or our business or operations. Readers are cautioned that certain important factors may affect Glucotrack’s actual results and could cause such results to differ materially from any forward-looking statements that may be made in this news release. Factors that may affect Glucotrack’s results include, but are not limited to, the ability of Glucotrack to raise additional capital to finance its operations (whether through public or private equity offerings, debt financings, strategic collaborations or otherwise); risks relating to the receipt (and timing) of regulatory approvals (including U.S. Food and Drug Administration approval); risks relating to enrollment of patients in, and the conduct of, clinical trials; risks relating to Glucotrack’s future distribution agreements; risks relating to its ability to hire and retain qualified personnel, including sales and distribution personnel; and the additional risk factors described in Glucotrack’s filings with the U.S. Securities and Exchange Commission (the “SEC”), including its Annual Report on Form 10-K for the year ended December 31, 2025 as filed with the SEC on March 30, 2026.

Contacts:

Investor Relations:Media:
investors@glucotrack.comGlucotrackPR@icrinc.com



FAQ

What did Glucotrack (GCTK) publish on April 30, 2026 about its CBGM technology?

They published a peer-reviewed study showing long-term in-vivo performance of their implantable CBGM. According to the company, the ovine study implanted 34 devices in 17 sheep, ran up to 240 days, and reported a weighted average MARD of 6.8% across 79 IVGTTs.

How accurate was Glucotrack's CBGM in the published ovine study (GCTK)?

The ovine study reported a weighted average MARD of 6.8% across tests. According to the company, that result came from 79 intravenous glucose tolerance tests performed during up to 240 days of implant duration.

Did Glucotrack report any safety issues in the April 30, 2026 publication (GCTK)?

No device-related adverse safety events were reported in the ovine study. According to the company, the devices showed consistent glucose sensing and no device-related safety events over the up to 240-day period.

What clinical progress does the Glucotrack (GCTK) announcement suggest for FDA IDE submission?

The company describes the results as supporting progression toward an IDE submission with FDA. According to the company, these preclinical and prior first-in-human data support further clinical development steps.

How does the published preclinical MARD compare to Glucotrack's first-in-human results (GCTK)?

The ovine study reported MARD 6.8%, while the first-in-human study reported MARD 7.7% with 99% data capture. According to the company, both data sets are cited to support platform accuracy and stability.