NCT04511468

Brief Summary

Currently, the incidence of diabetes mellitus is increasing worldwide. People with prediabetes have higher risk to develop diabetes mellitus type 2. Several studies have proven that Zinc and Chromium are minerals that contribute to decreasing the level of blood glucose and insulin resistance. In addition, vitamin C also contributes in decreasing Fasting Blood Glucose (FBG) and Hemoglobin A1c (HbA1c). However, the eficacy of a combined zinc, chromium, vitamin C, and copper (ZCC) in decreasing blood glucose in prediabetic people has never been performed. The primary objective of this study is to investigate the effect of a combination of ZCC supplementation with standard healthy lifestyle counseling in improving glucose profile \[Fasting Blood Glucose (FBG), 2-hour Oral Glucose Tolerance Test (OGTT), Homeostatic Model Assessment for Insulin Resistance (HOMA-IR)\] from prediabetes to normal or reducing the risk of progression from prediabetes to Type 2-Diabetes Mellitus (T2DM) compared to placebo with standard healthy lifestyle intervention.

Trial Health

55
Monitor

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
670

participants targeted

Target at P75+ for phase_2

Timeline
Completed

Started Jun 2021

Typical duration for phase_2

Geographic Reach
1 country

1 active site

Status
active not 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

June 1, 2020

Completed
2 months until next milestone

First Posted

Study publicly available on registry

August 13, 2020

Completed
10 months until next milestone

Study Start

First participant enrolled

June 23, 2021

Completed
3.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2024

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

March 31, 2025

Completed
Last Updated

November 5, 2024

Status Verified

November 1, 2024

Enrollment Period

3.5 years

First QC Date

June 1, 2020

Last Update Submit

November 4, 2024

Conditions

Keywords

ZincChromiumCopperVitamin C

Outcome Measures

Primary Outcomes (6)

  • Change of Fasting Blood Glucose (FBG)

    To investigate the effect of ZCC supplementation with standard healthy lifestyle intervention in improving Fasting Blood Glucose compared to placebo with standard healthy lifestyle intervention

    Baseline (at the beginning of study), Intervention Period (3 and 6 months), and 12 months

  • Change of Hemoglobin A1c (HbA1c)

    To investigate the effect of ZCC supplementation with standard healthy lifestyle intervention in improving HbA1c compared to placebo with standard healthy lifestyle intervention

    Baseline (at the beginning of study), Intervention Period (3 and 6 months), and 12 months

  • Change of 2 hour Oral Glucose Tolerance Test (2-hour OGTT)

    To investigate the effect of ZCC supplementation with standard healthy lifestyle intervention in improving 2 hour OGTT compared to placebo with standard healthy lifestyle intervention

    Baseline (at the beginning of study), Intervention Period (3 and 6 months), and 12 months

  • Change of Homeostatic Model Assessment of Insulin Resistance (HOMA-IR)

    To investigate the effect of ZCC supplementation with standard healthy lifestyle intervention in improving HOMA-IR compared to placebo with standard healthy lifestyle intervention

    Baseline (at the beginning of study), Intervention Period (3 and 6 months), and 12 months

  • Delay Onset of Type 2 Diabetes Mellitus (T2DM) Progression

    Total participants who develop T2DM during study intervention as assessed by blood glucose

    Baseline (at the beginning of study), Intervention Period (3 and 6 months), and 12 months

  • Change the Risk of T2DM Progression

    Total participants whose blood glucose returned to normal during study intervention as assessed by blood glucose

    Baseline (at the beginning of study), Intervention Period (3 and 6 months), and 12 months

Secondary Outcomes (9)

  • Change in Lipid Profile (will be assessed by High Density Lipoprotein (HDL) in mg/dL, Low Density Lipoprotein (LDL) in mg/dL, Triglyceride (TG) in mg/dL, and total cholesterol in mg/dL))

    Baseline (at the beginning of study), Intervention Period (3 and 6 months), and 12 months

  • Change in Body Weight (kilogram)

    Baseline (at the beginning of study), Intervention Period (3 and 6 months), and 12 months

  • Change in Body Mass Index (BMI) (weight and height will be combined to report the BMI in kg/m^2)

    Baseline (at the beginning of study), Intervention Period (3 and 6 months), and 12 months

  • Change in Percentage of Fat Mass (using Body Impedance Analysis)

    Baseline (at the beginning of study), Intervention Period (3 and 6 months), and 12 months

  • Change in Dietary intake

    Baseline (at the beginning of study), Intervention Period (3 and 6 months), and 12 months

  • +4 more secondary outcomes

Other Outcomes (5)

  • Cost Effectiveness Analysis of ZCC Supplement using Incremental cost-effectiveness ratio (ICER)

    through study completion, an average of 1 year

  • Change of Quality of Life Questionnaire (assessed by SF-36 questionnaire)

    through study completion, an average of 1 year

  • Change in High-sensitivity C-Reactive Protein (hs-CRP) level (optional)

    through study completion, an average of 2 year

  • +2 more other outcomes

Study Arms (2)

Experimental Group

EXPERIMENTAL

A combination of Zinc, Chromium, Vitamin C, and Copper (ZCC supplement) with standard healthy lifestyle intervention

Dietary Supplement: Zinc, Chromium, Vitamin C, and Copper SupplementationBehavioral: Standard healthy lifestyle intervention

Control group

PLACEBO COMPARATOR

Placebo with standard healthy lifestyle intervention

Behavioral: Standard healthy lifestyle interventionOther: Placebo

Interventions

Combination of mineral and vitamin supplementation that consist of Zinc, Chromium, Vitamin C, and Copper

Experimental Group

Standard healthy lifestyle intervention will follow the Guidelines on the Management and Prevention of Prediabetes by the Indonesian Ministry of Healthy and the Indonesian Diabetes Association.

Control groupExperimental Group
PlaceboOTHER

Placebo with inactive ingredients

Control group

Eligibility Criteria

Age35 Years - 65 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Adults aged between 35-65 years old;
  • Being prediabetes as assessed by having fasting plasma glucose (FPG) level in the range of 100 mg/dL to 125 mg/dL; having 2-h values in the oral glucose tolerance (OGTT) level in the range of 140 mg/dL to 199 mg/dL;
  • The study subjects will be recruited from household communities connected to any health care facilities such as primary health center, private clinics or private GP/specialist on the national health care system;
  • The subjects are willing to sign informed consent;
  • The subjects are willing to stay commitment during the study, at least 1 year;
  • Having app-android mobile

You may not qualify if:

  • Pregnancy or lactation women;
  • Transgender on hormonal injection;
  • Bariatric surgery;
  • Consuming other pills supplementation containing zinc and/or chromium, copper, vitamin C in regular basis;
  • History of Inflammatory Bowel Disease (IBD), psychiatric disorders, chronic diseases (e.g., HIV, Cushing syndrome, CKD, acromegaly, hyperthyroidism, etc.);
  • Not healthy (current status of the severely malnourished, acute problem of any severe disease, history of impaired hepatic, renal failure, heart failure, cancer, other catastrophic diseases.
  • Currently using weight loss medication;
  • Consuming pharmacology agents that might interfere the intervention (such as metformin, methylprednisolone, methyltestosterone, diuretics, complementary medicines);
  • Subjects who are unable to read and understand the statements of consent form

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Human Nutrition Research Center, Indonesian Medical Education Research Institute (HNRC-IMERI) Faculty of Medicine, Universitas Indonesia

Jakarta Pusat, DKI Jakarta, 10430, Indonesia

Location

Related Publications (21)

  • Jayawardena R, Ranasinghe P, Byrne NM, Soares MJ, Katulanda P, Hills AP. Prevalence and trends of the diabetes epidemic in South Asia: a systematic review and meta-analysis. BMC Public Health. 2012 May 25;12:380. doi: 10.1186/1471-2458-12-380.

    PMID: 22630043BACKGROUND
  • Jayawardena R, Ranasinghe P, Galappatthy P, Malkanthi R, Constantine G, Katulanda P. Effects of zinc supplementation on diabetes mellitus: a systematic review and meta-analysis. Diabetol Metab Syndr. 2012 Apr 19;4(1):13. doi: 10.1186/1758-5996-4-13.

    PMID: 22515411BACKGROUND
  • Dall TM, Yang W, Gillespie K, Mocarski M, Byrne E, Cintina I, Beronja K, Semilla AP, Iacobucci W, Hogan PF. The Economic Burden of Elevated Blood Glucose Levels in 2017: Diagnosed and Undiagnosed Diabetes, Gestational Diabetes Mellitus, and Prediabetes. Diabetes Care. 2019 Sep;42(9):1661-1668. doi: 10.2337/dc18-1226. Epub 2019 Apr 2.

    PMID: 30940641BACKGROUND
  • Janghorbani M, Amini M. Normal fasting plasma glucose and risk of prediabetes and type 2 diabetes: the Isfahan Diabetes Prevention Study. Rev Diabet Stud. 2011 Winter;8(4):490-8. doi: 10.1900/RDS.2011.8.490. Epub 2012 Feb 10.

    PMID: 22580730BACKGROUND
  • Aroda VR, Ratner R. Approach to the patient with prediabetes. J Clin Endocrinol Metab. 2008 Sep;93(9):3259-65. doi: 10.1210/jc.2008-1091.

    PMID: 18772457BACKGROUND
  • Kelly FJ. Use of antioxidants in the prevention and treatment of disease. J Int Fed Clin Chem. 1998 Mar;10(1):21-3.

    PMID: 10181011BACKGROUND
  • Capdor J, Foster M, Petocz P, Samman S. Zinc and glycemic control: a meta-analysis of randomised placebo controlled supplementation trials in humans. J Trace Elem Med Biol. 2013 Apr;27(2):137-42. doi: 10.1016/j.jtemb.2012.08.001. Epub 2012 Nov 6.

    PMID: 23137858BACKGROUND
  • Ranasinghe P, Wathurapatha WS, Galappatthy P, Katulanda P, Jayawardena R, Constantine GR. Zinc supplementation in prediabetes: A randomized double-blind placebo-controlled clinical trial. J Diabetes. 2018 May;10(5):386-397. doi: 10.1111/1753-0407.12621. Epub 2018 Jan 3.

    PMID: 29072815BACKGROUND
  • Guo CH, Wang CL. Effects of zinc supplementation on plasma copper/zinc ratios, oxidative stress, and immunological status in hemodialysis patients. Int J Med Sci. 2013;10(1):79-89. doi: 10.7150/ijms.5291. Epub 2012 Dec 22.

    PMID: 23289009BACKGROUND
  • Kim HN, Kim SH, Eun YM, Song SW. Effects of zinc, magnesium, and chromium supplementation on cardiometabolic risk in adults with metabolic syndrome: A double-blind, placebo-controlled randomised trial. J Trace Elem Med Biol. 2018 Jul;48:166-171. doi: 10.1016/j.jtemb.2018.03.022. Epub 2018 Mar 30.

    PMID: 29773176BACKGROUND
  • Bartlett HE, Eperjesi F. Nutritional supplementation for type 2 diabetes: a systematic review. Ophthalmic Physiol Opt. 2008 Nov;28(6):503-23. doi: 10.1111/j.1475-1313.2008.00595.x.

    PMID: 19076553BACKGROUND
  • Abdollahi M, Farshchi A, Nikfar S, Seyedifar M. Effect of chromium on glucose and lipid profiles in patients with type 2 diabetes; a meta-analysis review of randomized trials. J Pharm Pharm Sci. 2013;16(1):99-114. doi: 10.18433/j3g022.

    PMID: 23683609BACKGROUND
  • Will JC, Ford ES, Bowman BA. Serum vitamin C concentrations and diabetes: findings from the Third National Health and Nutrition Examination Survey, 1988-1994. Am J Clin Nutr. 1999 Jul;70(1):49-52. doi: 10.1093/ajcn/70.1.49.

    PMID: 10393138BACKGROUND
  • Eriksson J, Kohvakka A. Magnesium and ascorbic acid supplementation in diabetes mellitus. Ann Nutr Metab. 1995;39(4):217-23. doi: 10.1159/000177865.

    PMID: 8546437BACKGROUND
  • Ashor AW, Werner AD, Lara J, Willis ND, Mathers JC, Siervo M. Effects of vitamin C supplementation on glycaemic control: a systematic review and meta-analysis of randomised controlled trials. Eur J Clin Nutr. 2017 Dec;71(12):1371-1380. doi: 10.1038/ejcn.2017.24. Epub 2017 Mar 15.

    PMID: 28294172BACKGROUND
  • Islam MR, Attia J, Ali L, McEvoy M, Selim S, Sibbritt D, Akhter A, Akter S, Peel R, Faruque O, Mona T, Lona H, Milton AH. Zinc supplementation for improving glucose handling in pre-diabetes: A double blind randomized placebo controlled pilot study. Diabetes Res Clin Pract. 2016 May;115:39-46. doi: 10.1016/j.diabres.2016.03.010. Epub 2016 Mar 19.

    PMID: 27242121BACKGROUND
  • Sharma S, Agrawal RP, Choudhary M, Jain S, Goyal S, Agarwal V. Beneficial effect of chromium supplementation on glucose, HbA1C and lipid variables in individuals with newly onset type-2 diabetes. J Trace Elem Med Biol. 2011 Jul;25(3):149-53. doi: 10.1016/j.jtemb.2011.03.003. Epub 2011 May 12.

    PMID: 21570271BACKGROUND
  • Paiva AN, Lima JG, Medeiros AC, Figueiredo HA, Andrade RL, Ururahy MA, Rezende AA, Brandao-Neto J, Almeida Md. Beneficial effects of oral chromium picolinate supplementation on glycemic control in patients with type 2 diabetes: A randomized clinical study. J Trace Elem Med Biol. 2015 Oct;32:66-72. doi: 10.1016/j.jtemb.2015.05.006. Epub 2015 May 28.

    PMID: 26302914BACKGROUND
  • Vistisen D, Kivimaki M, Perreault L, Hulman A, Witte DR, Brunner EJ, Tabak A, Jorgensen ME, Faerch K. Reversion from prediabetes to normoglycaemia and risk of cardiovascular disease and mortality: the Whitehall II cohort study. Diabetologia. 2019 Aug;62(8):1385-1390. doi: 10.1007/s00125-019-4895-0. Epub 2019 May 23.

    PMID: 31123789BACKGROUND
  • Khan MI, Siddique KU, Ashfaq F, Ali W, Reddy HD, Mishra A. Effect of high-dose zinc supplementation with oral hypoglycemic agents on glycemic control and inflammation in type-2 diabetic nephropathy patients. J Nat Sci Biol Med. 2013 Jul;4(2):336-40. doi: 10.4103/0976-9668.117002.

    PMID: 24082728BACKGROUND
  • Agustina R, Prafiantini E, Putri AR, Mufida R, Hanifa H, Afifah S, Tahapary DL, Shankar AH, Soewondo P. Protocol for a randomized controlled trial to evaluate the impact of daily supplementation with zinc, chromium, vitamin C, and copper on progression of prediabetes in Jakarta, Indonesia. Contemp Clin Trials. 2025 Sep;156:108007. doi: 10.1016/j.cct.2025.108007. Epub 2025 Jul 11.

MeSH Terms

Conditions

Prediabetic State

Interventions

ZincChromiumAscorbic Acid

Condition Hierarchy (Ancestors)

Diabetes MellitusGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System Diseases

Intervention Hierarchy (Ancestors)

Metals, HeavyElementsInorganic ChemicalsTransition ElementsMetalsSugar AcidsAcids, AcyclicCarboxylic AcidsOrganic ChemicalsHydroxy AcidsCarbohydrates

Study Officials

  • Rina Agustina, MD, MSc, PhD

    HNRC-IMERI, Faculty of Medicine Universitas Indonesia

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
Independent party will mask the product.
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: There will be two arms of intervention: Arm 1: A combination of Zinc, Chromium, Vitamin C, and Copper (ZCC supplement) with standard healthy lifestyle intervention. Arm 2: A combination of placebo with standard healthy lifestyle intervention.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
dr. Rina Agustina, M.Sc., PhD

Study Record Dates

First Submitted

June 1, 2020

First Posted

August 13, 2020

Study Start

June 23, 2021

Primary Completion

December 31, 2024

Study Completion

March 31, 2025

Last Updated

November 5, 2024

Record last verified: 2024-11

Data Sharing

IPD Sharing
Will not share

Locations