NCT00931905

Brief Summary

Saturnism, or lead poisoning, is defined by clinical symptoms (affecting primarily the nervous, hematopoietic, gastrointestinal, cardiovascular, musculoskeletal, renal and reproductive systems) compatible with exposure, in the short or long term, to lead or to its compounds, and can manifest as acute or chronic symptoms, pursuant to the intensity and duration of the signs and symptoms. Measuring serum concentration is the primary method for diagnosing and accompanying exposed workers. Presently, elevated lead counts are reversed by using drugs whose effectiveness is contested on various fronts. Experimental studies shows the efficacy of homeopathic preparations in controlling blood lead levels in laboratory animals, creating the need for controlled studies that evaluate the effectiveness and safety of these preparations in humans.The objective of this study was evaluate the effectiveness of the homeopathic preparation Plumbum metallicum in reducing the blood lead level of workers exposed to this metal.

Trial Health

80
On Track

Trial Health Score

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

Enrollment
113

participants targeted

Target at P50-P75 for phase_4

Geographic Reach
1 country

1 active site

Status
completed

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

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

June 30, 2009

Completed
2 days until next milestone

First Posted

Study publicly available on registry

July 2, 2009

Completed
Last Updated

August 3, 2009

Status Verified

July 1, 2009

First QC Date

June 30, 2009

Last Update Submit

July 31, 2009

Conditions

Keywords

This study included workers exposed to lead.

Outcome Measures

Primary Outcomes (1)

  • Effectiveness of the homeopathic preparation Plumbum metallicum in treating poisoning with respect to the decrease of the blood lead level of workers exposed to lead.

Study Arms (2)

Homeopathic medication Plumbum metallicum

EXPERIMENTAL

The homeopathic medication Plumbum metallicum 15CH was used, and was diluted and dynamized using the Hahnemann centesimal scale, whose matrix was obtained from the Schraiber laboratory in 4CH in 70% ethanol. From this solution, the matrix was elevated to 14CH in 70% ethanol. The 15CH dynamization was prepared in 30% ethanol, which was the recommended solution for administration.

Drug: Homeopathic medication Plumbum metallicum

hydroalcoholic solution

PLACEBO COMPARATOR

The placebo was composed of a hydroalcoholic solution also prepared in 30% ethanol.

Other: Hydroalcoholic solution

Interventions

The homeopathic medication Plumbum metallicum 15CH was used and was diluted and dynamized using the Hahnemann centesimal scale, whose matrix was obtained from the Schraiber laboratory in 4CH in 70% ethanol. From this solution, the matrix was elevated to 14CH in 70% ethanol. The 15CH dynamization was prepared in 30% ethanol, which was the recommended solution for administration.The drugs were administered orally (ten drops) twice daily - at the beginning and the end of the shift and under supervision for 30 days. The patients were instructed not to take other medication without medical guidance during the time they were participating in the research.

Homeopathic medication Plumbum metallicum

The placebo was composed of a hydroalcoholic solution also prepared in 30% ethanol. It was administered orally (ten drops) twice daily - at the beginning and the end of the shift and under supervision for 30 days. The patients were instructed not to take other medication without medical guidance during the time they were participating in the research.

hydroalcoholic solution

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • had not taken a leave of absence for any reason for a period greater than seven days in the 60 days prior to the intervention;
  • where in good medical condition, as analyzed by their medical records and physical exam;
  • had an initial blood lead level less than the maximum biological concentration permitted, which is 60µ/dL in Brazil.

You may not qualify if:

  • workers who, in the last six months, had used medication that interferes/d with the level of lead in the blood, such as EDTA, BAL, penicillinase and DMSA;
  • workers who had the right to vacation during the study period;
  • workers who did not give their consent to participate in the study.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Universidade Federal de Sao Paulo

São Paulo, São Paulo, 04039-001, Brazil

Location

MeSH Terms

Conditions

Lead Poisoning

Condition Hierarchy (Ancestors)

Heavy Metal PoisoningPoisoningChemically-Induced Disorders

Study Officials

  • Roberto Q Padilha, MD

    Federal University of São Paulo

    PRINCIPAL INVESTIGATOR
  • Rachel Riera, MD

    Federal University of São Paulo

    STUDY CHAIR
  • Alvaro N Atallah, phD

    Federal University of São Paulo

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER

Study Record Dates

First Submitted

June 30, 2009

First Posted

July 2, 2009

Last Updated

August 3, 2009

Record last verified: 2009-07

Locations