Drug Induced ConstipationPhase 1NCT01533870
Study in Healthy Volunteers to Investigate the Effects of Rifampin on the Pharmacokinetics of NKTR-118
A Phase 1 study testing NKTR-118 and Rifampin in people with Drug Induced Constipation, run by AstraZeneca at 1 site in United States.
Trial summary
Study in healthy volunteers to investigate the effects of Rifampin on the Pharmacokinetics of NKTR-118. Read more about this study
- Who is it for?
- Ages 18 to 55 yearsHealthy volunteers can take part
- Conditions the study is for
- Drug Induced Constipation
- What is being tested?
- NKTR-118 and Rifampin
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 22 participants
- Where
- 1 siteUnited States
- Study dates
- Mar 2012to May 2012
- 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
- Provision of signed and dated, written informed consent prior to any study-specific procedures.
- Male and female (nonchildbearing potential, nonlactating) healthy volunteers aged 18 to 55 years inclusive, with suitable veins for cannulation or repeated venipuncture.
- Female volunteers must have a negative pregnancy test at screening and at admission, must not be lactating, and must be of nonchildbearing potential.
- Male volunteers should be willing to use barrier contraception ie, condoms, from the first day of dosing until 3 months after dosing with the IP. The female partner should use contraception during this period.
- Volunteers must have a BMI between 18 and 30 kg/m2, inclusive, and weigh at least 50 kg.
Who cannot join
- Any clinically significant disease or disorder (eg, cardiovascular, pulmonary, gastrointestinal, liver, renal, neurological, musculoskeletal, endocrine, metabolic, malignant, psychiatric, or major physical impairment), as judged by the Investigator.
- Any clinically significant illness, medical/surgical procedure or trauma, in the opinion of the Investigator, within 4 weeks of the first administration of IP.
- Any clinically significant abnormalities in clinical chemistry, hematology, or urinalysis results as judged by the Investigator.
- Significant orthostatic reaction at enrollment as judged by the Investigator.
- Abnormal vital signs, after 10 minutes supine rest as defined in protocol.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: An Open-label, Fixed-sequence, 3-period, 3-treatment, Crossover Study to Assess the Effects of Rifampin on Pharmacokinetics of NKTR-118 in Healthy Subjects
Study in healthy volunteers to investigate the effects of Rifampin on the Pharmacokinetics of NKTR-118.
Read the detailed description
An Open-label, fixed-sequence, 3-period, 3-treatment, Crossover Study to Assess the Effects of Rifampin on Pharmacokinetics of NKTR-118 in Healthy Subjects.
- Conditions
- Drug Induced Constipation
- Being tested
- NKTR-118, Rifampin
- Keywords
- Phase 1, Healthy male and female volunteers, Drug-drug interaction, Pharmacokinetics, NKTR-118, Bioavailability, Plasma AUC and Cmax, Plasma AUC0-t and t1/2λz and tmax
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
NKTR-118Drug
Oral 25 mg
RifampinDrug
Oral 600 mg
| Study group | Role | What they receive |
|---|---|---|
| NKTR-118 | Experimental | Single dose NKTR-118 25 mg on Day 1 only Receives: Drug: NKTR-118 |
| Rifampin | Active comparator | Rifampin 600 mg once daily on Days 4 to 12 Receives: Drug: Rifampin |
| Rifampin/ NKTR-118 | Active comparator | Rifampin 600 mg plus NKTR-118 25 mg on Day 13 Receives: Drug: NKTR-118; Drug: Rifampin |
What is being measured
The primary outcome is the main question the study is designed to answer.
Description of the pharmacokinetic(PK) profile for NKTR 118 after co administration of Rifampin in terms of area under the concentration-time curve from time zero (predose) extrapolated to infinity (AUC).
Measured: Predose and at 0:15, 0:30, 1, 1:30, 2, 3, 4, 5, 6, 8, 10, 12, 16, 24, 36, 48, and 72 hours Day 1 and 13
Description of the PK profile for NKTR 118 in terms of maximum plasma concentration (Cmax), time to Cmax (tmax), half-life (t1/2λz), apparent terminal rate constant (λz).
Measured: Predose and at 0:15, 0:30, 1, 1:30, 2, 3, 4, 5, 6, 8, 10, 12, 16, 24, 36, 48, and 72 hours Day 1 and 13
Description of the PK profile for NKTR 118 in terms of area under the plasma concentration-time curve from time zero to the time of the last measurable concentration [AUC(0-t)].
Measured: Predose and at 0:15, 0:30, 1, 1:30, 2, 3, 4, 5, 6, 8, 10, 12, 16, 24, 36, 48, and 72 hours Day 1 and 13
Description of the PK profile for NKTR 118 in terms of area under the plasma concentration-time curve from time zero to 24 hours [AUC(0-24)].
Measured: Predose and at 0:15, 0:30, 1, 1:30, 2, 3, 4, 5, 6, 8, 10, 12, 16, 24, 36, 48, and 72 hours Day 1 and 13
Description of the PK profile for NKTR 118 in terms of apparent oral clearance (CL/F), and apparent volume of distribution during the terminal phase (Vz/F).
Measured: Predose and at 0:15, 0:30, 1, 1:30, 2, 3, 4, 5, 6, 8, 10, 12, 16, 24, 36, 48, and 72 hours Day 1 and 13
Secondary outcomes (1)
Description of the safety profile in terms of adverse events, clinical laboratory assessments , vital signs (blood pressure and pulse rate), physical examinations, electrocardiograms, and Columbia-Suicide Severity Rating scale.
Measured: From baseline day -1 through to Follow-up (Maximum 27 days)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted15 Feb 2012 (estimated)
- Study startMar 2012
- Primary completionMay 2012
- Study completionMay 2012
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Drug Induced ConstipationStudies of the same condition, open and under way.
- More trials run by AstraZenecaThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Non-randomised
- Intervention model
- Crossover
- Masking
- None (open label)
- Enrolment
- 22 participants (actual)
Sponsor and investigators
- Lead sponsor
- AstraZeneca
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Bo Fransson, MD, Study chair, AstraZeneca, Sodertalje SwedenKelli Craven, MD, Principal investigator, Quintiles, Inc Kansas Overland Park US.Mark Sostek, MD, Study director, AstraZeneca, Wilmington US
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01533870
- Sponsor's protocol ID
- D3820C00015
- Status last verified
- Oct 2014
- First submitted
- 13 Feb 2012
- Last updated
- 15 Oct 2014
- Results posted
- No
Study at a glance
From the registry record, last updated by the sponsor on 15 Oct 2014. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- An Open-label, Fixed-sequence, 3-period, 3-treatment, Crossover Study to Assess the Effects of Rifampin on Pharmacokinetics of NKTR-118 in Healthy Subjects
- ClinicalTrials.gov ID
- NCT01533870
- Acronym / sponsor ID
- D3820C00015
- Conditions
- Drug Induced Constipation
- Keywords
- Phase 1, Healthy male and female volunteers, Drug-drug interaction, Pharmacokinetics, NKTR-118, Bioavailability, Plasma AUC and Cmax, Plasma AUC0-t and t1/2λz and tmax
- Phase
- Phase 1
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 22 participants (actual)
- Lead sponsor
- AstraZenecaIndustry (pharma, biotech, devices)
- Study start
- Mar 2012
- Primary completion
- May 2012 (actual)
- Study completion
- May 2012 (actual)
- First posted
- 15 Feb 2012 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Study in healthy volunteers to investigate the effects of Rifampin on the Pharmacokinetics of NKTR-118.
Detailed description
An Open-label, fixed-sequence, 3-period, 3-treatment, Crossover Study to Assess the Effects of Rifampin on Pharmacokinetics of NKTR-118 in Healthy Subjects.
Study design
- Primary purpose
- Basic science
- Allocation
- Non-randomised
- Intervention model
- Crossover
- Masking
- None (open label)
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| NKTR-118 | Experimental | Drug: NKTR-118Single dose NKTR-118 25 mg on Day 1 only |
| Rifampin | Active comparator | Drug: RifampinRifampin 600 mg once daily on Days 4 to 12 |
| Rifampin/ NKTR-118 | Active comparator | Drug: NKTR-118, Drug: RifampinRifampin 600 mg plus NKTR-118 25 mg on Day 13 |
Who may qualify
- Ages
- 18 to 55 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (5 listed)
- Provision of signed and dated, written informed consent prior to any study-specific procedures.
- Male and female (nonchildbearing potential, nonlactating) healthy volunteers aged 18 to 55 years inclusive, with suitable veins for cannulation or repeated venipuncture.
- Female volunteers must have a negative pregnancy test at screening and at admission, must not be lactating, and must be of nonchildbearing potential.
- Male volunteers should be willing to use barrier contraception ie, condoms, from the first day of dosing until 3 months after dosing with the IP. The female partner should use contraception during this period.
- Volunteers must have a BMI between 18 and 30 kg/m2, inclusive, and weigh at least 50 kg.
Key exclusion criteria (5 listed)
- Any clinically significant disease or disorder (eg, cardiovascular, pulmonary, gastrointestinal, liver, renal, neurological, musculoskeletal, endocrine, metabolic, malignant, psychiatric, or major physical impairment), as judged by the Investigator.
- Any clinically significant illness, medical/surgical procedure or trauma, in the opinion of the Investigator, within 4 weeks of the first administration of IP.
- Any clinically significant abnormalities in clinical chemistry, hematology, or urinalysis results as judged by the Investigator.
- Significant orthostatic reaction at enrollment as judged by the Investigator.
- Abnormal vital signs, after 10 minutes supine rest as defined in protocol.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| NKTR-118Oral 25 mg | Drug | NKTR-118, Rifampin/ NKTR-118 |
| RifampinOral 600 mg | Drug | Rifampin, Rifampin/ NKTR-118 |
Primary outcome
Description of the pharmacokinetic(PK) profile for NKTR 118 after co administration of Rifampin in terms of area under the concentration-time curve from time zero (predose) extrapolated to infinity (AUC).
Time frame: Predose and at 0:15, 0:30, 1, 1:30, 2, 3, 4, 5, 6, 8, 10, 12, 16, 24, 36, 48, and 72 hours Day 1 and 13
Description of the PK profile for NKTR 118 in terms of maximum plasma concentration (Cmax), time to Cmax (tmax), half-life (t1/2λz), apparent terminal rate constant (λz).
Time frame: Predose and at 0:15, 0:30, 1, 1:30, 2, 3, 4, 5, 6, 8, 10, 12, 16, 24, 36, 48, and 72 hours Day 1 and 13
Description of the PK profile for NKTR 118 in terms of area under the plasma concentration-time curve from time zero to the time of the last measurable concentration [AUC(0-t)].
Time frame: Predose and at 0:15, 0:30, 1, 1:30, 2, 3, 4, 5, 6, 8, 10, 12, 16, 24, 36, 48, and 72 hours Day 1 and 13
Description of the PK profile for NKTR 118 in terms of area under the plasma concentration-time curve from time zero to 24 hours [AUC(0-24)].
Time frame: Predose and at 0:15, 0:30, 1, 1:30, 2, 3, 4, 5, 6, 8, 10, 12, 16, 24, 36, 48, and 72 hours Day 1 and 13
Description of the PK profile for NKTR 118 in terms of apparent oral clearance (CL/F), and apparent volume of distribution during the terminal phase (Vz/F).
Time frame: Predose and at 0:15, 0:30, 1, 1:30, 2, 3, 4, 5, 6, 8, 10, 12, 16, 24, 36, 48, and 72 hours Day 1 and 13
1 secondary outcome
Description of the safety profile in terms of adverse events, clinical laboratory assessments , vital signs (blood pressure and pulse rate), physical examinations, electrocardiograms, and Columbia-Suicide Severity Rating scale.
Time frame: From baseline day -1 through to Follow-up (Maximum 27 days)
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 15 Oct 2014.
- Related InfoLink provided by the sponsor.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Bo Fransson, MD study chair
AstraZeneca, Sodertalje Sweden
Kelli Craven, MD principal investigator
Quintiles, Inc Kansas Overland Park US.
Mark Sostek, MD study director
AstraZeneca, Wilmington US
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1 study testing NKTR-118 and Rifampin in people with Drug Induced Constipation, run by AstraZeneca 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 5 inclusion and 5 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 Oct 2014. 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?
Description of the pharmacokinetic(PK) profile for NKTR 118 after co administration of Rifampin in terms of area under the concentration-time curve from time zero (predose) extrapolated to infinity (AUC). (time frame: Predose and at 0:15, 0:30, 1, 1:30, 2, 3, 4, 5, 6, 8, 10, 12, 16, 24, 36, 48, and 72 hours Day 1 and 13). The study lists 5 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 Oct 2014.