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Clinical Trials/NCT04138693
NCT04138693
Completed
N/A

A Randomized, Placebo-controlled, Double-blind Study to Evaluate the Effect of G-PUR® on Enteral Lead Isotope 204Pb-absorption

Glock Health, Science and Research GmbH1 site in 1 country42 target enrollmentSeptember 24, 2019
ConditionsLead Exposure

Overview

Phase
N/A
Intervention
Not specified
Conditions
Lead Exposure
Sponsor
Glock Health, Science and Research GmbH
Enrollment
42
Locations
1
Primary Endpoint
204PbB Cmax normalized for total PbB
Status
Completed
Last Updated
5 years ago

Overview

Brief Summary

This is a prospective, randomized, placebo-controlled, double blind, parallel-arm study in a two-staged approach that will assess the effect of two different doses of G-PUR® on enteral lead absorption in healthy adults using a stable lead isotopic tracer (204Pb).

Registry
clinicaltrials.gov
Start Date
September 24, 2019
End Date
February 12, 2020
Last Updated
5 years ago
Study Type
Interventional
Study Design
Parallel
Sex
All

Investigators

Responsible Party
Sponsor

Eligibility Criteria

Inclusion Criteria

  • Healthy male and female subjects
  • Age 18-45 years
  • BMI 19-27 for males and BMI 17-25 for female
  • Blood lead (PbB) concentration \< 40 μg/l
  • Serum ferritin concentration within the sex-specific normal range, i.e. ≥ 15 - 150 ng/ml for women and 30 - 400 ng/ml for men
  • Presence of scalp hair with a minimum length of 5 mm and willingness to remove 5 single hairs with hair roots at end of study visit
  • Subject is in good clinical and mental health as established by medical history and physical examination
  • Stable eating habits, within one month before the start of the study
  • Subject agrees to be compliant for study related diet schedule
  • Women of childbearing potential agree to use adequate birth control methods during the study (for all females, negative pregnancy test at screening and at Visit 3 before dosing of IMD is required. Females of childbearing potential must use adequate contraception during the entire study period. Acceptable methods of contraception include: oral contraceptives, intrauterine device, female or male condoms with spermicide, diaphragm with spermicide, contraceptive medication patch, contraceptive medication implant, contraceptive medication injection, abstinence, or surgical sterilization more than 3 months before randomization.

Exclusion Criteria

  • Pregnancy and breastfeeding
  • Lack of willingness or capacity to co-operate appropriately
  • Regular use of medications or iron supplements in the previous 2 months except intake of contraceptives
  • Planning to shave head during study
  • History of malignancies within the past two years or on current anticancer treatment
  • History of gastrointestinal pathology such as gastritis, gastric ulcers, irritable bowel disease, inflammatory bowel disease, chronic constipation
  • History of diarrhoea within the past 14 days of screening
  • History of gastrointestinal surgery with exception of appendectomy
  • History of chronic autoimmune disease requiring treatment within the past two months of screening
  • Known diabetes mellitus I or II or Hba1c \>6.5%

Outcomes

Primary Outcomes

204PbB Cmax normalized for total PbB

Time Frame: 216 hours

Cmax of 204PbB normalized for total natural PbB levels after intake of 204Pb-enriched water

Secondary Outcomes

  • Incidence of (S)ADE(216 hours)
  • Plasma PK parameters - AUC0-t of 204PbB(216 hours)
  • Plasma PK parameters - tmax of 204PbB(216 hours)
  • 204Pb concentrations in 24-hour urine(24 hours)
  • 204Pb in single hairs(9 days)

Study Sites (1)

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