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TuberculosisPhase 1NCT00990990

Safety, Tolerability, Pharmacokinetics And Measurement Of Whole Blood Activity (WBA) Of PNU-100480 After Multiple Oral Doses In Healthy Adult Volunteers

A Phase 1 study testing PNU-100480 and Linezolid in people with Tuberculosis, run by Sequella, Inc. at 1 site in United States.

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

The purpose of this study is to assess the safety, tolerability and pharmacokinetics of multiple doses of PNU-100480 given for 14 or 28 days. Killing activity against the bacterium that causes tuberculosis (TB) will also be measured. Read more about this study

Who is it for?
Ages 18 to 55 yearsHealthy volunteers can take part
Conditions the study is for
Tuberculosis
What is being tested?
PNU-100480 and Linezolid
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
59 participants
Where
1 siteUnited States
Study dates
Oct 2009to May 2010
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 18 to 55 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Healthy adult volunteers willing and able to be confined to the Clinical Research Unit and comply with study schedule.
  • Women of non-childbearing potential only.

Who cannot join

  • History of hypersensitivity to, or intolerance of, linezolid.
  • Antibiotic treatment within 14 days prior to dosing, or any previous antibiotic use at the discretion of the investigator.
  • Previous history of irritable bowel syndrome (IBS) or inflammatory bowel disease (IBD).

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Pfizer Investigational Site

    New Haven, Connecticut, 06511

Other trials in United States

About this study

Official title: A Phase 1, Double-Blind, Randomized, Placebo-Controlled Study To Evaluate The Safety, Tolerability, Pharmacokinetics And Pharmacodynamics Of PNU-100480 (PF-02341272) After Administration Of Multiple Escalating Oral Doses To Healthy Adult Subjects

The purpose of this study is to assess the safety, tolerability and pharmacokinetics of multiple doses of PNU-100480 given for 14 or 28 days. Killing activity against the bacterium that causes tuberculosis (TB) will also be measured. The effect of adding an additional tuberculosis (TB) agent (given for 2 days) in addition to PNU-100480 will be evaluated. Linezolid open label to determine activity in whole blood assay (WBA).

Read the detailed description

Evaluate safety, tolerability, pharmacokinetics and whole blood activity (WBA) of PNU-100480 given for 14 or 28 days; evaluate WBA of PNU with pyrazinamide; evaluate WBA of linezolid

Conditions
Tuberculosis
Being tested
PNU-100480, Placebo, Linezolid
Keywords
Safety tolerability pharmacokinetics (PK) pharmacodynamics whole blood activity (WBA) PNU-100480 linezolid pyrazinamide multiple dose
Medical subject headings
Tuberculosis

What participants receive

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

  • PNU-100480Drug

    100 mg BID for 14 days

  • PlaceboDrug

    to match 100 mg BID for 14 days

  • PNU-100480Drug

    300 mg BID for 14 days

  • PlaceboDrug

    to match 300 mg BID for 14 days

  • PNU-100480Drug

    600 mg BID for 14 days

  • PlaceboDrug

    to match 600 mg BID for 14 days

  • PNU-100480Drug

    1200 mg QD for 14 days

  • PlaceboDrug

    to match 1200 mg QD for 14 days

  • PNU-100480Drug

    600 mg BID for 28 days with pyrazinamide (25 mg/kg up to 2 g) QD on Days 27-28

  • PlaceboDrug

    placebo to match 600 mg BID for 28 days with pyrazinamide (25 mg/kg up to 2 g) QD on Days 27-28

  • PNU-100480Drug

    PNU-100480 dose up to total of 1200 mg daily for 28 days with pyrazinamide (25 mg/kg up to 2 g) QD on Days 27-28

  • PlaceboDrug

    placebo to match dose up to total of 1200 mg daily for 28 days with pyrazinamide (25 mg/kg up to 2 g) QD on Days 27-28

  • LinezolidDrug

    300 mg QD for 4 days (open label)

Study groups in NCT00990990
Study groupRoleWhat they receive
Cohort 1ExperimentalNot described
Receives: Drug: PNU-100480; Drug: Placebo
Cohort 2ExperimentalNot described
Receives: Drug: PNU-100480; Drug: Placebo
Cohort 3ExperimentalNot described
Receives: Drug: PNU-100480; Drug: Placebo
Cohort 4ExperimentalNot described
Receives: Drug: PNU-100480; Drug: Placebo
Cohort 5ExperimentalNot described
Receives: Drug: PNU-100480; Drug: Placebo
Cohort 6 (optional)ExperimentalNot described
Receives: Drug: PNU-100480; Drug: Placebo
Linezolid CohortExperimentalNot described
Receives: Drug: Linezolid

What is being measured

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

  1. To evaluate the safety and tolerability of ascending oral doses of PNU-100480 administered as extemporaneously prepared suspension (EPS) over 14 and 28 days in healthy adult volunteers.

    Measured: Monitor adverse events daily; safety eval pre-dose, specified times , discharge, follow-up/as needed

Secondary outcomes (4)
  1. To characterize the single dose and steady state pharmacokinetics of ascending oral doses of PNU-100480 administered over 14 and 28 days in healthy adult volunteers with regard to the parent drug and its metabolites.

    Measured: Full and sparse PK sampling from Day 1 through final day of dosing

  2. To characterize the bactericidal activity in blood of orally administered PNU-100480 against intracellular M. tuberculosis in relation to blood concentrations ofPNU-100480 and its metabolites.

    Measured: Full and sparse sampling from Day 1 through final day of dosing

  3. To characterize the effect of once a day administration of pyrazinamide for 2 days on the pharmacokinetics and bactericidal activity in blood of orally administered PNU-100480 against intracellular M. tuberculosis (Cohorts 5 and 6, Days 27-28 only).

    Measured: Days 27-28 as applicable

  4. To characterize pharmacokinetics and bactericidal activity in blood of orally administered linezolid against intracellular M. tuberculosis following 4 days of QD dosing.

    Measured: As applicable up to Day 4

Timeline

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

  1. First posted7 Oct 2009 (estimated)
  2. Study startOct 2009
  3. Primary completionMay 2010
  4. Study completionMay 2010

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
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
59 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00990990
Sponsor's protocol ID
B1171002
Status last verified
Aug 2013
First submitted
6 Oct 2009
Last updated
28 Aug 2013
Results posted
No
Data monitoring committee
No

Publications

  • Wallis RS, Jakubiec WM, Kumar V, Silvia AM, Paige D, Dimitrova D, Li X, Ladutko L, Campbell S, Friedland G, Mitton-Fry M, Miller PF. Pharmacokinetics and whole-blood bactericidal activity against Mycobacterium tuberculosis of single doses of PNU-100480 in healthy volunteers. J Infect Dis. 2010 Sep 1;202(5):745-51. doi: 10.1086/655471.

    PubMed 20629533

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing PNU-100480 and Linezolid in people with Tuberculosis, run by Sequella, Inc. at 1 site in United States.

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 2 inclusion and 3 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 28 Aug 2013. 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 States. 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?

To evaluate the safety and tolerability of ascending oral doses of PNU-100480 administered as extemporaneously prepared suspension (EPS) over 14 and 28 days in healthy adult volunteers. (time frame: Monitor adverse events daily; safety eval pre-dose, specified times , discharge, follow-up/as needed). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00990990, which also lists 1 linked publication.

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 28 Aug 2013.

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