Biological AvailabilityPhase 1NCT00714558
Pharmacokinetics of Fentanyl Following Intravenous and Oral Routes of Administration in Healthy Volunteers
A Phase 1 study testing Fentanyl citrate; Naltrexone; Naloxone in people with Biological Availability, run by Alza Corporation, DE, USA.
Trial summary
The purpose of the study is to compare the pharmacokinetics of fentanyl following i.v. and oral administration in healthy volunteers, and to assess the bioavailability of fentanyl following oral administration. Moreover, safety is assessed. Read more about this study
- Who is it for?
- Ages 18 to 45 yearsHealthy volunteers can take part
- Conditions the study is for
- Biological Availability
- What is being tested?
- Fentanyl citrate; Naltrexone; Naloxone
- How many people
- 18 participants
- Where
- No sites listed yet
- Study dates
- Apr 2003to May 2003
- 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 45 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- Healthy, non smoker, men and nonpregnant nonlactating women
- Weighing a minimum of 60 kg and were within 15% of ideal weight for height as described in the Metropolitan Life Insurance Height and Weight Standards
- Who did not have a history or show presence of drug or alcohol dependence or abuse
- And who had, after sitting for 5 minutes, blood pressure between the ranges of 100 to 150 mm Hg systolic and 50 to 90 mm Hg diastolic. Any decrease in systolic blood pressure after standing for 2 minutes had to be less than or equal to 20 mm Hg
Who cannot join
- History of chronic obstructive pulmonary disease or any other lung disease, such as asthma, that would cause carbon dioxide retention
- Known allergy or hypersensitivity to fentanyl or other opioids, naltrexone or naloxone
- Usage of prescription medication (except for birth control medications, sex-hormone replacement or vitamins) within 14 days before Day 1, monoamine oxide inhibitors within 21 days prior to Day 1, over-the-counter medication (except for vitamin supplements or acetaminophen less than 2 gm/day) or herbal medication within 3 days prior to Day 1, alcohol, grapefruit juice, or caffeine within 48 hours before dosing
- Consumption of more than 450 mg of caffeine per day (eg, approximately 5 cups of tea, 3 cups of regular coffee, or 8 cans of cola)
About this study
Official title: Pharmacokinetics of Fentanyl Citrate Following Intravenous (i.v.) and Oral Routes of Administration in Healthy Subjects
The purpose of the study is to compare the pharmacokinetics of fentanyl following i.v. and oral administration in healthy volunteers, and to assess the bioavailability of fentanyl following oral administration. Moreover, safety is assessed.
Read the detailed description
Fentanyl, is an opioid (morphine-like) drug, that has been demonstrated to be an effective pain-killer medication by the i.v. and transdermal (through skin) routes. Fentanyl is used just before, during, and after surgery for its sedative and pain-relieving actions. In addition, fentanyl is currently marketed for transdermal use (Duragesic fentanyl transdermal patch) for the management of chronic pain. The information on the bioavailability of fentanyl solution, following the oral route of administration, is sparse. This is a single-center, randomized (study drug assigned by chance), open-label, 2-treatment, 2-period, crossover study. Healthy volunteers were randomly assigned to 1 of the 2 treatment sequences (AB or BA) with a washout period of 6 to 14 days between treatments. The washout period commenced the day of dosing, after drug administration. Prior to the first treatment period, each healthy volunteer was challenged with naloxone to ensure that he/she was not dependent on morphine-like drugs. A negative naloxone challenge test was required for the healthy volunteer to be eligible for participation in the study. Each healthy volunteer received a 50 mg naltrexone tablet starting 14 hours before dosing and then twice daily ending 24 hours after dosing to block the fentanyl effects. Blood samples were collected, from the arm opposite to the 1 selected for fentanyl i.v administration, for determination of blood fentanyl levels at the scheduled time points. Pulse, blood pressure, breathing rate, body temperature were recorded to monitor the safety. The healthy volunteers were monitored for respiratory depression every 30 minutes during sleep periods. The healthy volunteers remained in the clinic throughout the blood sample collection periods, and were monitored for adverse events throughout the study.
Treatment A: 300 mcg fentanyl citrate administered i.v. over 15 minutes. The 300 mcg (6 mL) i.v. solution was diluted and infused at a rate of 1 mL/minute. Treatment B: 1 mg fentanyl citrate solution administered orally. One mg fentanyl citrate was ingested in 20 mL solution; Naltrexone (50 mg) was administered orally to each healthy volunteer in both periods starting 14 hours before dosing, and twice daily through 24 hours post-dose.
- Conditions
- Biological Availability
- Being tested
- Fentanyl citrate; Naltrexone; Naloxone
- Keywords
- Pharmacokinetics, Administration, Oral, Naltrexone, Biological Availability, Infusions, Intravenous, Fentanyl, Safety, Naloxone
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Fentanyl citrate; Naltrexone; NaloxoneDrug
What is being measured
The primary outcome is the main question the study is designed to answer.
Evaluate the pharmacokinetics of fentanyl citrate following i.v. and oral routes of administration in healthy volunteers, and to assess the absolute bioavailability of fentanyl citrate following oral administration.
Secondary outcomes (1)
Assessment of safety. Vital signs, Physical examination, clinical laboratory tests, and electrocardiogram were performed at screening and study termination. Additionally, vital signs were recorded on Days 1 and 2 of both treatment periods.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted14 Jul 2008 (estimated)
- Study startApr 2003
- Study completionMay 2003
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Biological AvailabilityStudies of the same condition, open and under way.
- 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
- Treatment
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- None (open label)
- Enrolment
- 18 participants (actual)
Sponsor and investigators
- Lead sponsor
- Alza Corporation, DE, USA
- Sponsor type
- Industry (pharma, biotech, devices)
- Investigators
- Alza Corporation Clinical Trial, Study director, Alza Corporation, DE, USA
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00714558
- Sponsor's protocol ID
- CR003253
- Status last verified
- Apr 2010
- First submitted
- 10 Jul 2008
- Last updated
- 19 May 2011
- Results posted
- No
Study at a glance
From the registry record, last updated by the sponsor on 19 May 2011. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Pharmacokinetics of Fentanyl Citrate Following Intravenous (i.v.) and Oral Routes of Administration in Healthy Subjects
- ClinicalTrials.gov ID
- NCT00714558
- Acronym / sponsor ID
- CR003253
- Conditions
- Biological Availability
- Keywords
- Pharmacokinetics, Administration, Oral, Naltrexone, Biological Availability, Infusions, Intravenous, Fentanyl, Safety, Naloxone
- Phase
- Phase 1
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 18 participants (actual)
- Lead sponsor
- Alza Corporation, DE, USAIndustry (pharma, biotech, devices)
- Study start
- Apr 2003
- Study completion
- May 2003 (actual)
- First posted
- 14 Jul 2008 (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.
The purpose of the study is to compare the pharmacokinetics of fentanyl following i.v. and oral administration in healthy volunteers, and to assess the bioavailability of fentanyl following oral administration. Moreover, safety is assessed.
Detailed description
Fentanyl, is an opioid (morphine-like) drug, that has been demonstrated to be an effective pain-killer medication by the i.v. and transdermal (through skin) routes. Fentanyl is used just before, during, and after surgery for its sedative and pain-relieving actions. In addition, fentanyl is currently marketed for transdermal use (Duragesic fentanyl transdermal patch) for the management of chronic pain. The information on the bioavailability of fentanyl solution, following the oral route of administration, is sparse. This is a single-center, randomized (study drug assigned by chance), open-label, 2-treatment, 2-period, crossover study. Healthy volunteers were randomly assigned to 1 of the 2 treatment sequences (AB or BA) with a washout period of 6 to 14 days between treatments. The washout period commenced the day of dosing, after drug administration. Prior to the first treatment period, each healthy volunteer was challenged with naloxone to ensure that he/she was not dependent on morphine-like drugs. A negative naloxone challenge test was required for the healthy volunteer to be eligible for participation in the study. Each healthy volunteer received a 50 mg naltrexone tablet starting 14 hours before dosing and then twice daily ending 24 hours after dosing to block the fentanyl effects. Blood samples were collected, from the arm opposite to the 1 selected for fentanyl i.v administration, for determination of blood fentanyl levels at the scheduled time points. Pulse, blood pressure, breathing rate, body temperature were recorded to monitor the safety. The healthy volunteers were monitored for respiratory depression every 30 minutes during sleep periods. The healthy volunteers remained in the clinic throughout the blood sample collection periods, and were monitored for adverse events throughout the study.
Treatment A: 300 mcg fentanyl citrate administered i.v. over 15 minutes. The 300 mcg (6 mL) i.v. solution was diluted and infused at a rate of 1 mL/minute. Treatment B: 1 mg fentanyl citrate solution administered orally. One mg fentanyl citrate was ingested in 20 mL solution; Naltrexone (50 mg) was administered orally to each healthy volunteer in both periods starting 14 hours before dosing, and twice daily through 24 hours post-dose.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- None (open label)
Who may qualify
- Ages
- 18 to 45 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (4 listed)
- Healthy, non smoker, men and nonpregnant nonlactating women
- Weighing a minimum of 60 kg and were within 15% of ideal weight for height as described in the Metropolitan Life Insurance Height and Weight Standards
- Who did not have a history or show presence of drug or alcohol dependence or abuse
- And who had, after sitting for 5 minutes, blood pressure between the ranges of 100 to 150 mm Hg systolic and 50 to 90 mm Hg diastolic. Any decrease in systolic blood pressure after standing for 2 minutes had to be less than or equal to 20 mm Hg
Key exclusion criteria (4 listed)
- History of chronic obstructive pulmonary disease or any other lung disease, such as asthma, that would cause carbon dioxide retention
- Known allergy or hypersensitivity to fentanyl or other opioids, naltrexone or naloxone
- Usage of prescription medication (except for birth control medications, sex-hormone replacement or vitamins) within 14 days before Day 1, monoamine oxide inhibitors within 21 days prior to Day 1, over-the-counter medication (except for vitamin supplements or acetaminophen less than 2 gm/day) or herbal medication within 3 days prior to Day 1, alcohol, grapefruit juice, or caffeine within 48 hours before dosing
- Consumption of more than 450 mg of caffeine per day (eg, approximately 5 cups of tea, 3 cups of regular coffee, or 8 cans of cola)
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 |
|---|---|---|
| Fentanyl citrate; Naltrexone; Naloxone | Drug | – |
Primary outcome
Evaluate the pharmacokinetics of fentanyl citrate following i.v. and oral routes of administration in healthy volunteers, and to assess the absolute bioavailability of fentanyl citrate following oral administration.
1 secondary outcome
Assessment of safety. Vital signs, Physical examination, clinical laboratory tests, and electrocardiogram were performed at screening and study termination. Additionally, vital signs were recorded on Days 1 and 2 of both treatment periods.
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 19 May 2011.
- Pharmacokinetics of fentanyl following intravenous and oral routes of administration in healthy subjectsLink 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.
Alza Corporation Clinical Trial study director
Alza Corporation, DE, USA
Questions about this trial
What is this clinical trial studying?
A Phase 1 study testing Fentanyl citrate; Naltrexone; Naloxone in people with Biological Availability, run by Alza Corporation, DE, USA.
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 4 inclusion and 4 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 19 May 2011. Status can change between updates, so confirm with the study contact before making plans.
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?
Evaluate the pharmacokinetics of fentanyl citrate following i.v. and oral routes of administration in healthy volunteers, and to assess the absolute bioavailability of fentanyl citrate following oral administration.. 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 19 May 2011.