NCT07711587

Brief Summary

The goal of this 16-week double-blind, placebo-controlled pilot study is to determine whether daily Diaplex supplementation improves insulin sensitivity and glycemic control in adults with elevated blood glucose levels, while generating high-quality preliminary data on metabolic effects, glycemic patterns, and safety to inform future trials

Trial Health

65
Monitor

Trial Health Score

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

Enrollment
40

participants targeted

Target at P25-P50 for not_applicable

Timeline
16mo left

Started Sep 2026

Status
not yet recruiting

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

July 13, 2026

Completed
4 days until next milestone

First Posted

Study publicly available on registry

July 17, 2026

Completed
2 months until next milestone

Study Start

First participant enrolled

September 1, 2026

Expected
1.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 30, 2027

2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 15, 2027

Last Updated

July 17, 2026

Status Verified

July 1, 2026

Enrollment Period

1.2 years

First QC Date

July 13, 2026

Last Update Submit

July 13, 2026

Conditions

Keywords

SupplementChromiumGlycemic Index

Outcome Measures

Primary Outcomes (1)

  • Changes in HOMA-IR

    To determine whether 16 weeks of intervention with Diaplex improves insulin sensitivity versus placebo.

    Baseline to 16-weeks

Secondary Outcomes (6)

  • CGM (Weeks 15-16)

    2 weeks

  • Mean glucose

    2 weeks

  • Time-in-Range (70-180 mg/dL)

    2 weeks

  • Time Above/Below Range

    2 weeks

  • Coefficient of variation (CV)

    2 weeks

  • +1 more secondary outcomes

Other Outcomes (6)

  • Fasting glucose

    baseline to 16-weeks

  • Fasting insulin

    baseline to 16-weeks

  • HbA1c

    baseline to 16-weeks

  • +3 more other outcomes

Study Arms (2)

Placebo

PLACEBO COMPARATOR

No chromium ingredients

Dietary Supplement: Placebo

Diaplex

ACTIVE COMPARATOR

Chromium ingredients

Dietary Supplement: Diaplex

Interventions

DiaplexDIETARY_SUPPLEMENT

Standard Process Diaplex product

Diaplex
PlaceboDIETARY_SUPPLEMENT

Placebo with no chormium ingredients

Placebo

Eligibility Criteria

Age30 Years - 65 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • BMI 18.5-29.9 kg/m² (normal to overweight)
  • Generally healthy individuals with no metabolic or endocrine disorders besides elevated blood glucose levels, meaning no metabolic syndrome, insulin resistance diagnosis, dyslipidemia diagnosis requiring treatment, thyroid disorders, etc.
  • Stable weight for the past 3 months (±5%)
  • Sedentary or lightly active baseline lifestyle (Light activity ≤3 times/week (e.g., walking, yoga, casual biking)
  • Willingness to maintain usual diet, activity, and sleep patterns for 16 weeks
  • Able and willing to wear a CGM for the final 10-14 days
  • Willing to complete 3-day dietary recalls, sleep and activity logs
  • Not taking or willing to stop taking supplements containing chromium, vitamin A, vitamin B6, iodine, and niacin

You may not qualify if:

  • Any diagnosed metabolic/endocrine disorder, other than elevated blood glucose levels, such as metabolic syndrome, insulin resistance diagnosis, clinically significant dyslipidemia, thyroid dysfunction or use of thyroid medication, or obesity-related endocrine dysfunction
  • Medications and supplements use of glucose-lowering medications within the past 3 months, including use of weight-loss drugs or metabolic agents, such asGLP-1 RAs (Ozempic, Wegovy, Rybelsus, Trulicity, Victoza, Saxenda) or GIP/GLP-1 RAas (Mounjaro, Zepbound)
  • Use of supplements within the last 30 days containing chromium, vitamin A, vitamin B6, niacin, iodine
  • Unwilling to discontinue prohibited supplements
  • Health Conditions \& safety such as elevated ALT/AST more than 2× the upper limit or known chronic liver disease or diagnosed renal impairment (eGFR \<45 mL/min/1.73 m²), uncontrolled hypertension (\>160/100 mmHg)
  • Pregnant, breastfeeding, or planning pregnancy
  • Allergy or sensitivity to study ingredients or CGM adhesives
  • Lifestyle and compliance (\>30 minutes/day of intense physical activity (active adults or athletes))
  • Participation in another investigational trial in the past 30 days
  • Any condition that may interfere with participation or data quality (per investigator guidance)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (9)

  • Wan S, He J, Simoes EJ, Mechanick JI, Wu WC, An P, Liu S. Chromium Supplementation to Reduce Cardiometabolic Risk Factors: A Novel Dose-Response Meta-Analysis of Randomized Clinical Trials. JACC Adv. 2023 Nov 23;2(10):100729. doi: 10.1016/j.jacadv.2023.100729. eCollection 2023 Dec. No abstract available.

    PMID: 38938494BACKGROUND
  • Qu HQ, Li Q, Rentfro AR, Fisher-Hoch SP, McCormick JB. The definition of insulin resistance using HOMA-IR for Americans of Mexican descent using machine learning. PLoS One. 2011;6(6):e21041. doi: 10.1371/journal.pone.0021041. Epub 2011 Jun 14.

    PMID: 21695082BACKGROUND
  • Trasino SE, Benoit YD, Gudas LJ. Vitamin A deficiency causes hyperglycemia and loss of pancreatic beta-cell mass. J Biol Chem. 2015 Jan 16;290(3):1456-73. doi: 10.1074/jbc.M114.616763. Epub 2014 Dec 1.

    PMID: 25451926BACKGROUND
  • Mascolo E, Verni F. Vitamin B6 and Diabetes: Relationship and Molecular Mechanisms. Int J Mol Sci. 2020 May 23;21(10):3669. doi: 10.3390/ijms21103669.

    PMID: 32456137BACKGROUND
  • Hua Y, Clark S, Ren J, Sreejayan N. Molecular mechanisms of chromium in alleviating insulin resistance. J Nutr Biochem. 2012 Apr;23(4):313-9. doi: 10.1016/j.jnutbio.2011.11.001.

    PMID: 22423897BACKGROUND
  • Hoffman NJ, Penque BA, Habegger KM, Sealls W, Tackett L, Elmendorf JS. Chromium enhances insulin responsiveness via AMPK. J Nutr Biochem. 2014 May;25(5):565-72. doi: 10.1016/j.jnutbio.2014.01.007. Epub 2014 Feb 20.

    PMID: 24725432BACKGROUND
  • Amer, H.M., Mohamed, S.A., Elshafeey, F. et al. Health implications of prediabetes and the role of trace elements in insulin resistance. Futur J Pharm Sci 11, 59 (2025).

    BACKGROUND
  • Dubey P, Thakur V, Chattopadhyay M. Role of Minerals and Trace Elements in Diabetes and Insulin Resistance. Nutrients. 2020 Jun 23;12(6):1864. doi: 10.3390/nu12061864.

    PMID: 32585827BACKGROUND
  • Yang W, Jiang W, Guo S. Regulation of Macronutrients in Insulin Resistance and Glucose Homeostasis during Type 2 Diabetes Mellitus. Nutrients. 2023 Nov 4;15(21):4671. doi: 10.3390/nu15214671.

    PMID: 37960324BACKGROUND

MeSH Terms

Conditions

Insulin Resistance

Condition Hierarchy (Ancestors)

HyperinsulinismGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic Diseases

Study Officials

  • Shirin Pourafshar, PhD

    Clinical Study Manager

    STUDY DIRECTOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, OUTCOMES ASSESSOR
Purpose
OTHER
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 13, 2026

First Posted

July 17, 2026

Study Start (Estimated)

September 1, 2026

Primary Completion (Estimated)

October 30, 2027

Study Completion (Estimated)

December 15, 2027

Last Updated

July 17, 2026

Record last verified: 2026-07

Data Sharing

IPD Sharing
Will not share

All participant data will be de-identified and saved