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Cystic FibrosisPhase 1NCT01768663

A Phase 1 Study to Examine the Drug-Drug Interaction of Ciprofloxacin, Itraconazole, and Rifampin on the Combination of Lumacaftor With Ivacaftor in Healthy Adult Subjects

A Phase 1 study testing Lumacaftor, Ivacaftor and Ciprofloxacin in people with Cystic Fibrosis, run by Vertex Pharmaceuticals Incorporated 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 examine the drug-drug interaction effects of ciprofloxacin, itraconazole, and rifampin on the pharmacokinetics of lumacaftor in combination with ivacaftor as well as to evaluate the potential effects of lumacaftor in combination with ivacaftor on lung function. Read more about this study

Who is it for?
Ages 18 to 55 yearsHealthy volunteers can take part
Conditions the study is for
Cystic Fibrosis
What is being tested?
Lumacaftor, Ivacaftor and Ciprofloxacin
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
80 participants
Where
1 siteUnited States
Study dates
Jan 2013to Sep 2013
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

  • Male and female subjects must be between the ages of 18 and 55 years, inclusive
  • Body mass index (BMI) of 18 to 31 kg/m2, inclusive, and a total body weight >50 kg.

Who cannot join

  • History of any illness that, in the opinion of the investigator, might confound the results of the study or pose an additional risk in administering study drug(s) to the subject. This may include, but is not limited to, a history of relevant drug or food allergies; history of cardiovascular or central nervous system disease; history or presence of clinically significant pathology; or history of mental disease.
  • History of febrile illness within 5 days before the first dose.
  • History of Gilbert's syndrome
  • Abnormal renal function as defined at screening
  • Blood donation of approximately 1 pint (500 mL) within 56 days before study drug administration
  • Treatment with an investigational drug within 30 days or 5 half-lives (or as determined by the local requirements, whichever is longer) preceding the first dose of study drug
  • Known hypersensitivity or prior adverse reaction to ciprofloxacin, or any member of the quinolone class of antimicrobial agents (Cohort 1 only); itraconazole, or to any of the other azoles (Cohort 2 only); rifampin, or to any of the rifamycins (Cohort 3 only)

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Study site

    Evansville, Indiana

Other trials in United States

About this study

Official title: A Phase 1, Open-Label Study to Examine the Effect of Ciprofloxacin, Itraconazole, and Rifampin on the Pharmacokinetics of Lumacaftor in Combination With Ivacaftor in Healthy Adult Subjects

The purpose of this study is to examine the drug-drug interaction effects of ciprofloxacin, itraconazole, and rifampin on the pharmacokinetics of lumacaftor in combination with ivacaftor as well as to evaluate the potential effects of lumacaftor in combination with ivacaftor on lung function.

Conditions
Cystic Fibrosis
Being tested
Lumacaftor, Ivacaftor, Ciprofloxacin, Itraconazole, Rifampin
Medical subject headings
Cystic Fibrosis

What participants receive

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

  • LumacaftorDrug

    Also called VX-809

    tablet, 200mg taken every 12 hours

  • IvacaftorDrug

    Also called VX-770

    tablet, 250mg taken every 12 hours

  • CiprofloxacinDrug

    750 mg taken every 12 hours

  • ItraconazoleDrug

    200mg taken once daily

  • RifampinDrug

    600mg taken once daily

Study groups in NCT01768663
Study groupRoleWhat they receive
Treatment Group (Cohort 1)ExperimentalSubjects will take lumacaftor in combination with ivacaftor for 14 days. Beginning on Day 15, subjects will take lumacaftor in combination with ivacaftor and ciprofloxacin through Day 21.
Receives: Drug: Lumacaftor; Drug: Ivacaftor; Drug: Ciprofloxacin
Treatment Group (Cohort 2)ExperimentalSubjects will take lumacaftor in combination with ivacaftor for 14 days. Beginning on Day 15, subjects will take lumacaftor in combination with ivacaftor and itraconazole through Day 21.
Receives: Drug: Lumacaftor; Drug: Ivacaftor; Drug: Itraconazole
Treatment Group (Cohort 3)ExperimentalSubjects will take lumacaftor in combination with ivacaftor for 14 days. Beginning on Day 15, subjects will take lumacaftor in combination with ivacaftor and rifampin through Day 24.
Receives: Drug: Lumacaftor; Drug: Ivacaftor; Drug: Rifampin
Treatment Group (Cohort 4)ExperimentalSubjects will take a single dose of lumacaftor in combination with ivacaftor on 3 occasions separated by 7 days.
Receives: Drug: Lumacaftor; Drug: Ivacaftor

What is being measured

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

  1. Cohorts 1-3: PK parameters including Cmax, and AUC from time of dosing to time tau of lumacaftor and ivacaftor in the absence and presence of ciprofloxacin, itraconazole, and rifampin

    Measured: up to 24 days

  2. Cohort 4: Change in lung function from before treatment with lumacaftor/ivacaftor to after treatment with lumacaftor/ivacaftor.

    Measured: up to 21 days

Secondary outcomes (2)
  1. Cohorts 1-4: Safety and tolerability as measured by adverse events (AEs) and changes in laboratory test values (serum chemistry, hematology, coagulation, and urinalysis), vital signs, standard 12 lead electrocardiograms (ECGs), and spirometry

    Measured: up to 31 days

  2. Cohort 4: PK parameters, including Cmax of lumacaftor/ivacaftor, and lung function

    Measured: 16 days

Timeline

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

  1. First posted15 Jan 2013 (estimated)
  2. Study startJan 2013
  3. Primary completionSep 2013

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
Treatment
Allocation
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
80 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01768663
Sponsor's protocol ID
VX12-809-009
Status last verified
Nov 2013
First submitted
11 Jan 2013
Last updated
15 Nov 2013
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Lumacaftor, Ivacaftor and Ciprofloxacin in people with Cystic Fibrosis, run by Vertex Pharmaceuticals Incorporated 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 7 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 15 Nov 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?

Cohorts 1-3: PK parameters including Cmax, and AUC from time of dosing to time tau of lumacaftor and ivacaftor in the absence and presence of ciprofloxacin, itraconazole, and rifampin (time frame: up to 24 days). The study lists 2 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 15 Nov 2013.

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