Pilot Proof of Concept Study of NBMI Treatment of Mercury Intoxication (NBMI)

March 4, 2021 updated by: EmeraMed

A Randomized, Placebo-controlled Study to Explore Safety, Dose and Efficacy of NBMI in a Mercury Intoxicated Population

A randomized, placebo controlled, double blind proof of concept study of NBMI in treatment of mercury intoxication.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

The objectives of this study are to evaluate the efficacy and safety of two doses of NBMI compared to placebo in mercury intoxicated patients.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
36

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Ecuador
      • Zaruma, Ecuador
        • Hospital Doctor Humberto Molina

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion criteria

  1. Male or female subjects, age between 18 and 65 years, inclusive.
  2. Urine-Hg ≥ 15 μg/L.
  3. Mercury intoxication medical score sum (Doering et al. 2014) ≥ 5 or medical score sum ≥ 3 in combination with at least two of the following symptoms; social nervousness/withdrawal, irritability, memory loss, metallic taste, mental- and physical fatigue.
  4. Has signed informed consent for participation.
  5. Willingness and ability to comply with study procedures, visit schedules, and other instructions regarding the study.

Exclusion criteria

  1. History of any clinically significant disease or disorder which, in the opinion of the investigator, may either put the subjects at risk because of participation in the study, or influence the results or the subject's ability to participate in the study.
  2. Known or a medical history of renal disorder, significant renal failure, or high risk of renal failure.
  3. Any clinically significant abnormalities in clinical chemistry or haematology results at the time of screening as judged by the investigator.
  4. Known or suspected neurodegenerative disorder including but not limited to stroke, polio, Parkinson's and Alzheimer's disease.
  5. Known or suspected drug or alcohol abuse.
  6. Positive pregnancy test in women.
  7. Serious bacterial and chronic viral infection such as human immunodeficiency virus (HIV) or hepatitis virus.
  8. History of severe allergy/hypersensitivity or on-going allergy/hypersensitivity, as judged by the investigator or history of hypersensitivity to drugs with a similar chemical structure or class to NBMI.
  9. History of allergy/hypersensitivity to bisulphites (e.g. red/white wine).
  10. Participation in any other clinical study that included drug treatment within three months of the first administration of investigational product.
  11. Use of other therapies for mercury intoxication including metal chelators within three months.
  12. Investigator considers subject unlikely to comply with study procedures, restrictions and requirements.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: NBMI (Emeramide) 100mg
NBMI oral capsules 100mg administered once daily. Double dummy used for blinding i.e. 2 x 50mg NBMI + 1 x 200mg placebo capsule equals in total 3 capsules administered daily.
Drug: Emeramide
Mercury chelator NBMI ((N1,N3-bis(2-mercaptoethyl) isophthalamide)
Other Names:
  • NBMI
  • Irminix
Experimental: NBMI (Emeramide) 300mg
NBMI oral capsules 300mg administered once daily. Double dummy used for blinding i.e. 2 x 50mg NBMI + 1 x 200mg NBMI capsule equals in total 3 capsules administered daily.
Drug: Emeramide
Mercury chelator NBMI ((N1,N3-bis(2-mercaptoethyl) isophthalamide)
Other Names:
  • NBMI
  • Irminix
Placebo Comparator: Placebo
Placebo oral capsules administered once daily. Double dummy used for blinding i.e. 2 x 50mg size + 1 x 200mg size placebo capsules equal in total 3 capsules administered daily.
Drug: Placebo
NBMI Placebo

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Mercury Intoxication Medical Score Sum
Time Frame: 45 days
Changes from baseline in mercury intoxication medical score sum compared between treatment arms.
45 days

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Individual components of Mercury Intoxication Medical Score Sum
Time Frame: 45 days
Changes from baseline in individual components of the mercury intoxication medical score sum compared between treatment arms.
45 days
Fatigue score
Time Frame: 15 days
Changes from baseline in fatigues score sum compared between treatment arms.
15 days
Neuromotoric functions
Time Frame: 45 days
Changes from baseline in neuromotoric functions objectively assessed and quantified using computerized systems such as CATSYS compared between treatment arms.
45 days
Blood mercury levels
Time Frame: 45 days
Changes from baseline in blood mercury level compared between treatment arms.
45 days
Urine mercury levels
Time Frame: 45 days
Changes from baseline in urine mercury level compared between treatment arms.
45 days
NBMI blood levels
Time Frame: 14 days
NBMI blood levels 0-24 hours after the first and last dose (day 14 dose)
14 days
NBMI urine levels
Time Frame: 14 days
NBMI urine levels 0-24 hours after the first and last dose (day 14 dose)
14 days
Adverse events
Time Frame: 45 days
Adverse event frequency, type and severity compared between treatment arms.
45 days
Safety laboratory assessments
Time Frame: 45 days
Changes from baseline in clinical chemistry and haematology tests compared between treatment arms.
45 days
Vital signs
Time Frame: 45 days
Changes from baseline in vital signs compared between treatment arms.
45 days

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
EmeraMed

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
NBMI Science AB

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Augusto Focil Baquerizo, MD, Fomat Medical Research

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
August 1, 2015

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
January 1, 2016

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
April 1, 2016

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
June 24, 2015

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 26, 2015

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
July 1, 2015

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 8, 2021

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 4, 2021

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
March 1, 2021

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • CTI002

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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