Immune ResponsePhase 1NCT00346619
Determining the Amount of Time Needed for Nelfinavir to Boost the Immune System in Adults
A Phase 1 study testing Nelfinavir in people with Immune Response, run by Mayo Clinic at 1 site in United States.
Trial summary
Our group has shown that HAART increases the thymic production of naïve T cells in the healthy adult, thereby boosting the immune system. We propose to investigate the amount of and length of Nelfinavir therapy necessary to increase those cells in adults. Read more about this study
- Who is it for?
- Ages 20 years and olderHealthy volunteers can take part
- Conditions the study is for
- Immune Response
- What is being tested?
- Nelfinavir
- How many people
- 25 participants
- Where
- 1 siteUnited States
- Study dates
- Oct 2005to Oct 2007
- 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 20 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Healthy individuals between the ages of 20 and 100. Exclusion criteria include the following: HIV, HBV/HCV positive, known sensitivity to protease inhibitors, oral intake contraindicated, diabetes mellitus diagnosed within the last six months, and any of the following medications: cisapride, amiodarone, terfenadine, rifampin/rifabutin, phenobarbital, pinozide, St. John's wort, ergot derivatives, quinidine, astemazole, carbemazapine, phenytoin, midazolam, triazolam, and simvastatin.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Investigating the Time of Nelfinavir Treatment Necessary for an Increase in Thymic Naive T Cells in Adults.
Our group has shown that HAART increases the thymic production of naïve T cells in the healthy adult, thereby boosting the immune system. We propose to investigate the amount of and length of Nelfinavir therapy necessary to increase those cells in adults. Subjects will be treated with Nelfinavir, and blood will be sampled at variable times to determine the immune response in peripheral blood.
Read the detailed description
Blood will be collected at several time points during the study. DNA will be isolated from peripheral blood lymphocytes (PBL) and assessed for signal point (sj) TREC content relative to genomic CCR5 copies by real time PCR in a spectoflourometic thermal cycler. TREC values will be expressed as TREC copy number per copies of CCR5 or TREC/PBLs.
We anticipate that we will confirm our previous observations that nelfinavir therapy will increase TRECs, indicating naive T cell production from the thymus. The proposed study will determine the time course of the anticipated increase in TREC/PBLs.
- Conditions
- Immune Response
- Being tested
- Nelfinavir
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
NelfinavirDrug
What is being measured
The primary outcome is the main question the study is designed to answer.
Will confirm that HIV protease inhibitors increase thymic naïve T-cell production and determine the dose and time needed to increase thymic T-cell production in adults.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted30 Jun 2006 (estimated)
- Study startOct 2005
- Primary completionOct 2007
- Study completionOct 2007
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Immune ResponseStudies of the same condition, open and under way.
- More trials run by Mayo ClinicThe 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
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 25 participants (actual)
Sponsor and investigators
- Lead sponsor
- Mayo Clinic
- Sponsor type
- University, hospital or other
- Investigators
- Stacey R. Vlahakis, M.D., Principal investigator, Mayo Clinic
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00346619
- Sponsor's protocol ID
- 1298-05
- Status last verified
- Jan 2010
- First submitted
- 28 Jun 2006
- Last updated
- 20 Jan 2010
- Results posted
- No
Publications
Rizza SR, Tangalos EG, McClees MD, Strausbauch MA, Targonski PV, McKean DJ, Wettstein PJ, Badley AD. Nelfinavir monotherapy increases naive T-cell numbers in HIV-negative healthy young adults. Front Biosci. 2008 Jan 1;13:1605-9. doi: 10.2741/2784.
PubMed 17981652
Study at a glance
From the registry record, last updated by the sponsor on 20 Jan 2010. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Investigating the Time of Nelfinavir Treatment Necessary for an Increase in Thymic Naive T Cells in Adults.
- ClinicalTrials.gov ID
- NCT00346619
- Acronym / sponsor ID
- 1298-05
- Conditions
- Immune Response
- Phase
- Phase 1
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 25 participants (actual)
- Lead sponsor
- Mayo ClinicUniversity, hospital or other
- Study start
- Oct 2005
- Primary completion
- Oct 2007 (actual)
- Study completion
- Oct 2007 (actual)
- First posted
- 30 Jun 2006 (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.
Our group has shown that HAART increases the thymic production of naïve T cells in the healthy adult, thereby boosting the immune system. We propose to investigate the amount of and length of Nelfinavir therapy necessary to increase those cells in adults. Subjects will be treated with Nelfinavir, and blood will be sampled at variable times to determine the immune response in peripheral blood.
Detailed description
Blood will be collected at several time points during the study. DNA will be isolated from peripheral blood lymphocytes (PBL) and assessed for signal point (sj) TREC content relative to genomic CCR5 copies by real time PCR in a spectoflourometic thermal cycler. TREC values will be expressed as TREC copy number per copies of CCR5 or TREC/PBLs.
We anticipate that we will confirm our previous observations that nelfinavir therapy will increase TRECs, indicating naive T cell production from the thymus. The proposed study will determine the time course of the anticipated increase in TREC/PBLs.
Study design
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Single group
- Masking
- None (open label)
Who may qualify
- Ages
- 20 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
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 |
|---|---|---|
| Nelfinavir | Drug | – |
Primary outcome
Will confirm that HIV protease inhibitors increase thymic naïve T-cell production and determine the dose and time needed to increase thymic T-cell production in adults.
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 20 Jan 2010.
- Derived from this study: PubMed 17981652Rizza SR, Tangalos EG, McClees MD, Strausbauch MA, Targonski PV, McKean DJ, Wettstein PJ, Badley AD. Nelfinavir monotherapy increases naive T-cell numbers in HIV-negative healthy young adults. Front Biosci. 2008 Jan 1;13:1605-9. doi: 10.2741/2784.
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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.
Stacey R. Vlahakis, M.D. principal investigator
Mayo Clinic
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 Nelfinavir in people with Immune Response, run by Mayo Clinic 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?
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 20 Jan 2010. 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?
Will confirm that HIV protease inhibitors increase thymic naïve T-cell production and determine the dose and time needed to increase thymic T-cell production in adults.. 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 NCT00346619, 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 20 Jan 2010.