Study on Neuropsychiatric Behavior in Cadmium-exposed People

NCT ID: NCT06572566

Last Updated: 2025-02-20

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Total Enrollment

84 participants

Study Classification

OBSERVATIONAL

Study Start Date

2024-01-08

Study Completion Date

2025-12-30

Brief Summary

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This study hypothesized that excessive cadmium is related to clinical pain, depression, and cognitive impairment, and that related indicators will improve after cadmium is eliminated.

Detailed Description

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This study will combine the research progress of the innovative drug GMDTC, the mechanism of nerve damage caused by Cd2+ disrupting Ca2+ homeostasis, imaging technology and analysis methods, and the basis of our previous research work to explore the effect of the chemical Class 1 innovative drug GMDTC on the neuropsychiatric behavior of people with excessive cadmium. mechanism of action. This study is not limited to the study of the mechanism of neurotoxicity after Cd2+ deposition. It will also clarify the clinical efficacy of the innovative drug GMDTC in removing Cd2+ deposition in the brain and reducing damage, which is expected to open up new avenues for the treatment of cadmium neurotoxicity. This study hypothesized that excessive cadmium is related to clinical pain, depression, and cognitive impairment, and that related indicators will improve after cadmium is eliminated.

Conditions

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Cadmium Exceeds the Standard

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

PROSPECTIVE

Study Groups

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Cadmium exceeding standard group

The urine cadmium level exceeding 5 μg/g creatinine for two consecutive times.

Non-invasive examination and assessment.

Intervention Type OTHER

1\) Test the blood and urine components of all subjects to evaluate the damage to kidney function caused by excessive cadmium. 2) Conduct MRI examinations on all subjects to evaluate changes in brain functional connectivity, metabolism, and structure after excessive cadmium exposure. 3) Conduct bone density examinations on all subjects to evaluate changes in bone density after excessive cadmium exposure. (3) Clinical psychiatric assessment: All subjects will be assessed on their mental and psychological conditions such as pain, cognitive function, depression, anxiety, mania, sleep quality, and suicide risk.

healthy control group

Urine cadmium ≤ 5 μg/g creatinine.

Non-invasive examination and assessment.

Intervention Type OTHER

1\) Test the blood and urine components of all subjects to evaluate the damage to kidney function caused by excessive cadmium. 2) Conduct MRI examinations on all subjects to evaluate changes in brain functional connectivity, metabolism, and structure after excessive cadmium exposure. 3) Conduct bone density examinations on all subjects to evaluate changes in bone density after excessive cadmium exposure. (3) Clinical psychiatric assessment: All subjects will be assessed on their mental and psychological conditions such as pain, cognitive function, depression, anxiety, mania, sleep quality, and suicide risk.

Interventions

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Non-invasive examination and assessment.

1\) Test the blood and urine components of all subjects to evaluate the damage to kidney function caused by excessive cadmium. 2) Conduct MRI examinations on all subjects to evaluate changes in brain functional connectivity, metabolism, and structure after excessive cadmium exposure. 3) Conduct bone density examinations on all subjects to evaluate changes in bone density after excessive cadmium exposure. (3) Clinical psychiatric assessment: All subjects will be assessed on their mental and psychological conditions such as pain, cognitive function, depression, anxiety, mania, sleep quality, and suicide risk.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Age ≥18 years old, both men and women are welcome
* The weight of male subjects is ≥50.0 kg, the weight of female subjects is ≥45.0 kg, and the body mass index (BMI) is between 19 \~ 26 kg/m2, including the critical value
* Urinary cadmium \>5 μmol/mol creatinine for 2 consecutive days (creatinine content is ≥0.3 μg/L and ≤3 μg/L)
* Right-handed
* Voluntarily participate in this study and sign informed consent.

Exclusion Criteria

* Combined with other neurodevelopmental problems (such as autism), organic brain mental disorders (such as Alzheimer\'s disease, Parkinson\'s disease, etc.) and organic brain diseases (such as cerebral hemorrhage, infarction, etc.) that meet the DSM-5 diagnostic criteria )
* Those who have suffered from or are currently suffering from any serious clinical diseases that pose safety risks such as circulatory system, endocrine system, nervous system, digestive system, respiratory system, hematology, immunology, psychiatry and metabolic abnormalities
* Continuous use of high-dose neuroleptics in the past 3 months (high-dose: daily dosage of benzodiazepines ≥ 4 mg lorazepam equivalent; long-term: the total duration of use is at least 60 days)
* Have contraindications for MRI or bone density examination (pacemaker or defibrillator, artificial heart valve, clothing containing fluorescein, iron, etc.)
* Pregnant and lactating women
* Those who cannot tolerate venipuncture and/or have a history of fainting from blood or needles
* Those with eGFR \<30 mL/min/1.73 m2 during screening (eGFR is calculated using the Cockcroft-Gault formula: eGFR(mL/min/1.73m2) = (140-age)\*weight (kg)/\[0.818\*Cr(μmol/L )\]\*0.85(female))
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Jianersheng (Zhuhai) Pharmaceutical Technology Co., Ltd.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Fang Pei

Role: PRINCIPAL_INVESTIGATOR

Hunan Occupational Disease Prevention and Control Institute

Locations

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Hunan Occupational Disease Prevention and Control Institute

Changsha, Hunan, China

Site Status RECRUITING

Countries

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China

Central Contacts

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Xiaojiang Tang, PhD

Role: CONTACT

13719282259

Rong Ma

Role: CONTACT

17685224168

Facility Contacts

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Fang Pei, PhD-c

Role: primary

86+15377490030

Xiaobi Deng

Role: backup

86+13787242979

References

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Clemens S, Aarts MG, Thomine S, Verbruggen N. Plant science: the key to preventing slow cadmium poisoning. Trends Plant Sci. 2013 Feb;18(2):92-9. doi: 10.1016/j.tplants.2012.08.003. Epub 2012 Sep 12.

Reference Type BACKGROUND
PMID: 22981394 (View on PubMed)

Deng D, Xu C, Sun P, Wu J, Yan C, Hu M, Yan N. Crystal structure of the human glucose transporter GLUT1. Nature. 2014 Jun 5;510(7503):121-5. doi: 10.1038/nature13306. Epub 2014 May 18.

Reference Type BACKGROUND
PMID: 24847886 (View on PubMed)

Mergenthaler P, Lindauer U, Dienel GA, Meisel A. Sugar for the brain: the role of glucose in physiological and pathological brain function. Trends Neurosci. 2013 Oct;36(10):587-97. doi: 10.1016/j.tins.2013.07.001. Epub 2013 Aug 20.

Reference Type BACKGROUND
PMID: 23968694 (View on PubMed)

Other Identifiers

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JianerShengPharmaNI

Identifier Type: -

Identifier Source: org_study_id

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