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Healthy Male SubjectsPhase 1NCT03739541

Benznidazole Absorption, Metabolism and Excretion Study

A Phase 1 study testing [14C]-Benznidazole in people with Healthy Male Subjects, run by Exeltis France at 1 site in United Kingdom.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This Phase I ADME study will be conducted to evaluate the pharmacokinetics of benznidazole. Read more about this study

Who is it for?
Ages 35 to 65 years, men onlyHealthy volunteers can take part
Conditions the study is for
Healthy Male Subjects
What is being tested?
[14C]-Benznidazole
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
6 participants
Where
1 siteUnited Kingdom
Study dates
16 Jul 2018to 2 Sep 2018
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 35 to 65 years
  • Men only
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Males of any race, between 35 and 65 years of age, inclusive, at screening.
  • Body mass index between 18.0 and 32.0 kg/m2, inclusive, at screening.
  • In good health, determined by no clinically significant findings from medical history, physical examination, 12-lead ECG, vital signs measurements, and clinical laboratory evaluations (congenital nonhemolytic hyperbilirubinemia [eg, Gilbert's syndrome] is acceptable) at screening or check-in as assessed by the Investigator (or designee).
  • Will agree to use contraception as detailed in Section 7.6.
  • History of a minimum of 1 bowel movement per day.
  • Able to comprehend and willing to sign an Inform Consent Form and to abide by the study restrictions.

Who cannot join

  • Significant history or clinical manifestation of any metabolic, allergic, dermatological, hepatic, renal, haematological, pulmonary, cardiovascular, gastrointestinal, neurological, respiratory, endocrine, or psychiatric disorder, as determined by the Investigator (or designee).
  • History of significant hypersensitivity, intolerance, or allergy to any drug compound, food, or other substance, unless approved by the Investigator (or designee).
  • History of dermatological conditions within the 6 months prior to dosing, such as rash, pruritus, and dermatitis, as determined by the Investigator (or designee).
  • History of stomach or intestinal surgery or resection that would potentially alter absorption and/or excretion of orally administered drugs (uncomplicated appendectomy and hernia repair will be allowed). Cholecystectomy is acceptable.
  • History of alcoholism or drug/chemical abuse within 2 years prior to check-in.
  • Alcohol consumption of >28 units per week for males. One unit of alcohol equals
Show all 22Show fewer
  • ½ pint (285 mL) of beer or lager, 1 glass (125 mL) of wine, or 1/6 gill (25 mL) of spirits.
  • Positive alcohol breath test or positive urine cotinine test result, or positive urine drug screen (confirmed by repeat) at screening or check-in.
  • Positive hepatitis panel and/or positive human immunodeficiency virus test (Appendix 3).
  • Participation in a clinical study involving administration of an investigational drug (new chemical entity) in the past 3 months prior to check-in.
  • Use or intend to use any medications/products known to alter drug absorption, metabolism, or elimination processes, including St. John's wort, within 30 days prior to check-in, unless deemed acceptable per Investigator (or designee) and Sponsor decision.
  • Use or intend to use any prescription medications/products within 14 days prior to check-in, unless deemed acceptable by the Investigator (or designee).
  • Use or intend to use slow-release medications/products considered to still be active within 14 days prior to check-in, unless deemed acceptable by the Investigator (or designee).
  • Use or intend to use any nonprescription medications/products including vitamins, minerals, and phytotherapeutic/herbal/plant-derived preparations within 7 days prior to check-in, unless deemed acceptable per Investigator (or designee) and Sponsor decision.
  • Use of tobacco- or nicotine-containing products within 3 months prior to check-in.
  • Receipt of blood products within 2 months prior to check-in.
  • Donation of blood from 3 months prior to screening, plasma from 2 weeks prior to screening, or platelets from 6 weeks prior to screening.
  • Poor peripheral venous access.
  • Have previously completed or withdrawn from this study or any other study investigating BNZ, and have previously received the investigational product.
  • Subjects with exposure to significant diagnostic or therapeutic radiation (eg, serial X-ray, computed tomography scan, barium meal) or current employment in a job requiring radiation exposure monitoring within 12 months prior to check-in.
  • Subjects who have participated in any clinical trial involving a radiolabelled investigational product within 12 months prior to check-in.
  • Subjects who, in the opinion of the Investigator (or designee), should not participate in this study.

Trial locations and contacts

1 site in 1 country.

United Kingdom1 site
  • Covance

    Leeds, LS2 9LH

Other trials in United Kingdom

About this study

Official title: A Phase I, Open-label, Study of the Absorption, Metabolism and Excretion, of [14C]-Benznidazole (BNZ) Following a Single Oral Dose in Healthy Male Subjects

This Phase I ADME study will be conducted to evaluate the pharmacokinetics of benznidazole.

Read the detailed description

This will be a single-site, open-label, non-randomized, single oral dose absorption, metabolism and excretion study in healthy male subjects. Potential subjects will be screened to assess their eligibility to enter the study within 28 days prior to dosing on Day 1. Subjects will be admitted into the Clinical Research Unit (CRU) on Day -1. Subjects will be confined to the CRU until at least Day 11 (240 hours postdose), and will be discharged from the CRU on Day 11 if all the following discharge criteria are met: >90% mass balance recovery; OR plasma/blood radioactivity levels below the limit of quantitation for 2 consecutive collections; and <1% of the total radioactive dose recovered in combined excreta (urine and faeces) in 2 consecutive 24-hour periods. If these criteria are not met by Day 11, subjects will remain in the CRU until all discharge criteria are met up to a maximum of Day 15 to continue 24-hour blood, urine and faeces collections for the analysis of total radioactivity, unless otherwise agreed upon by the Sponsor and Investigator. If the discharge criteria are not met by Day 15, subjects may be asked to collect 24-hour excreta samples on up to 2 further occasions on a nonresidential basis to allow extrapolation of urinary and faecal excretion. If needed, the 2 additional 24-hour nonresidential collections will occur on Day 21 (±1 day) and Day 28 (±1 day). If on the second occasion the subject has still not met the desired criterion, then the subject will be discharged from the study, per Investigator and Sponsor decision. Pharmacokinetic samples and radioanalytical samples will be obtained through at least 240 hours postdose, and possibly up to 4 weeks postdose (radioanalytical samples only), in case of not meeting discharge criteria. Samples for metabolite profiling/identification will be obtained through 240 hours postdose.

Being tested
[14C]-Benznidazole

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • [14C]-BenznidazoleDrug

    Also called BNZ

    A single dose level of 100 mg; 200 μCi (7.4 MBq)

Study groups in NCT03739541
Study groupRoleWhat they receive
[14C]-BenznidazoleExperimentalA single dose of 100 mg [14C]-BNZ, orally administered on Day 1 following an overnight fast.
Receives: Drug: [14C]-Benznidazole

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Cmax of BNZ in plasma

    maximum observed concentration (Cmax) in plasma

    Measured: Days 1-29

  2. Mass balance of [14C]-BNZ

    Mass balance of [14C]-BNZ in urine and faeces

    Measured: Days 1-29

  3. Chemical structure of [14C]-BNZ metabolites

    Characterization of the chemical structure and identification of metabolites of [14C]-BNZ in plasma, urine, and faeces

    Measured: Days 1-29

  4. tmax of BNZ in plasma

    time to maximum concentration (tmax) in plasma

    Measured: Days 1-29

  5. AUC0-t of BNZ in plasma

    area under the concentration-time curve (AUC) from hour zero to the last measurable concentration (AUC0-t) in plasma

    Measured: Days 1-29

  6. AUC0-∞ of BNZ in plasma

    AUC from time zero to infinity (AUC0-∞) in plasma

    Measured: Days 1-29

  7. % AUC extrap of BNZ in plasma

    percentage extrapolation (% AUCextrap) in plasma

    Measured: Days 1-29

  8. t1/2 of BNZ in plasma

    apparent terminal elimination half-life (t1/2) in plasma

    Measured: Days 1-29

  9. CL/Fof BNZ in plasma

    apparent oral clearance (CL/F) in plasma

    Measured: Days 1-29

  10. Vz/F of BNZ in plasma

    volume of distribution during the elimination phase for BNZ (Vz/F) in plasma

    Measured: Days 1-29

  11. Cmax of [14C]-BNZ in plasma

    maximum observed concentration (Cmax) in plasma

    Measured: Days 1-29

  12. tmax of [14C]-BNZ in plasma

    time to maximum concentration (tmax) in plasma

    Measured: Days 1-29

  13. AUC0-t of [14C]-BNZ in plasma

    area under the concentration-time curve (AUC) from hour zero to the last measurable concentration (AUC0-t) in plasma

    Measured: Days 1-29

  14. AUC0-∞ of [14C]-BNZ in plasma

    AUC from time zero to infinity (AUC0-∞) in plasma

    Measured: Days 1-29

  15. % AUC extrap of [14C]-BNZ in plasma

    percentage extrapolation (% AUCextrap) in plasma

    Measured: Days 1-29

  16. t1/2 of [14C]-BNZ in plasma

    apparent terminal elimination half-life (t1/2) in plasma

    Measured: Days 1-29

  17. Cmax of [14C]-BNZ in whole blood

    maximum observed concentration (Cmax) in whole blood

    Measured: Days 1-29

  18. tmax of [14C]-BNZ in whole blood

    time to maximum concentration (tmax) in whole blood

    Measured: Days 1-29

  19. AUC0-t of [14C]-BNZ in whole blood

    area under the concentration-time curve (AUC) from hour zero to the last measurable concentration (AUC0-t) in whole blood

    Measured: Days 1-29

  20. AUC0-∞ of [14C]-BNZ in whole blood

    AUC from time zero to infinity (AUC0-∞) in whole blood

    Measured: Days 1-29

  21. % AUCextrap of [14C]-BNZ in whole blood

    percentage extrapolation (% AUCextrap) in whole blood

    Measured: Days 1-29

  22. t1/2 of [14C]-BNZ in whole blood

    apparent terminal elimination half-life (t1/2) in whole blood

    Measured: Days 1-29

  23. Total radioactivity AUC ratio

    Total radioactivity AUC ratio (blood/plasma)

    Measured: Days 1-29

Secondary outcomes (17)
  1. The incidence and severity of Adverse Events (AEs)

    The incidence of AEs will be presented by severity and by association with the study drug as determined by the Investigator (or designee).

    Measured: Days 1-29

  2. The incidence of laboratory abnormalities (haematology)

    The incidence of laboratory abnormalities will be measured based on haematology test result.

    Measured: Days 1-29

  3. The incidence of laboratory abnormalities (clinical chemistry)

    The incidence of laboratory abnormalities will be measured based on clinical chemistry test result.

    Measured: Days 1-29

  4. The incidence of laboratory abnormalities (urinalysis)

    The incidence of laboratory abnormalities will be measured based on urinalysis test result.

    Measured: Days 1-29

  5. Measurement of QT interval (QTcB)

    Measure of 12-lead electrocardiogram (ECG); QT interval calculated using the Bazett correction (QTcB) in millisecond

    Measured: Days 1-29

  6. Measurement of QT interval (QTcF)

    Measure of 12-lead electrocardiogram (ECG); QT interval calculated using the Fridericia correction (QTcF) in millisecond

    Measured: Days 1-29

  7. Measurement of PR intervals

    Measure of 12-lead electrocardiogram (ECG); PR intervals in millisecond.

    Measured: Days 1-29

  8. Measurement of QT intervals

    Measure of 12-lead electrocardiogram (ECG); QT intervals in millisecond

    Measured: Days 1-29

  9. Measurement of QRS duration

    Measure of 12-lead electrocardiogram (ECG); QRS duration in millisecond

    Measured: Days 1-29

  10. Measurement of RR

    Measure of 12-lead electrocardiogram (ECG); RR in millisecond

    Measured: Days 1-29

  11. Measurement of heart rate

    Measure of 12-lead electrocardiogram (ECG); heart rate in beats per minute (BPM)

    Measured: Days 1-29

  12. Measurement of blood pressure

    Measure of supine systolic and diastolic blood pressure ( both in mmHg)

    Measured: Days 1-29

  13. Measurement of Physical Examination

    Weight (in kilograms) and Height (in centimeters) will be measured

    Measured: Days 1-29

  14. Measurement of supine pulse rate

    supine pulse rate (in beats/minute)

    Measured: Days 1-29

  15. Measurement body temperature

    oral body temperature (in Degree Celsius)

    Measured: Days 1-29

  16. Measurement of Weight

    weight (in kilograms)

    Measured: Days 1-29

  17. Measurement of Height

    height (in centimeters) w

    Measured: Days 1-29

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted14 Nov 2018
  2. Study start16 Jul 2018
  3. Primary completion2 Sep 2018
  4. Study completion2 Sep 2018

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Basic science
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
6 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03739541
Sponsor's protocol ID
LPRI747-103
Status last verified
Sep 2018
First submitted
6 Jul 2018
Last updated
14 Nov 2018
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing [14C]-Benznidazole in people with Healthy Male Subjects, run by Exeltis France at 1 site in United Kingdom.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 22 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 14 Nov 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United Kingdom. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Cmax of BNZ in plasma (time frame: Days 1-29). The study lists 23 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 14 Nov 2018.

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