HIV InfectionNCT00200369
Characterization of the Adherence Threshold for HIV Suppression of a Kaletra-based Regimen
An observational study of HIV Infection, run by Montefiore Medical Center at 1 site in United States.
Trial summary
The hypothesis of this study is that the level of adherence necessary to achieve HIV virologic suppression with a ritonavir boosted protease inhibitor regimen (i.e. lopinavir/ritonavir) is less than the 95% rate observed in the published literature with unboosted regimens. Read more about this study
- Who is it for?
- Ages 19 years and older
- Conditions the study is for
- HIV Infection
- What is being tested?
- MEMS cap
- Type of treatment
- Medical device
- How many people
- 90 participants
- Where
- 1 siteUnited States
- Study dates
- May 2004to Mar 2006
- Phase
- Observational
- 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 19 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: Subjects will be recruited from the Montefiore Medical Center Infectious Diseases Clinic with eligibility criteria as listed below.
Who may be able to join
- HIV infection
- Receiving twice daily Kaletra at an FDA approved dosage
- Age>18 years
- CD4 and viral load available within seven day of enrollment
- Patient willingness to accept MEMS cap monitoring
- HIV genotype within 60 days of enrollment for patients with viral load>1000
- Patient willingness to grant informed consent and complete five study visits
Who cannot join
- Provider or patient deem it unlikely that Kaletra therapy will continue for the ensuing 24 weeks
- Prescription of any medication that is contraindicated for Kaletra recipients
Trial locations and contacts
1 site in 1 country.
United States1 site
Montefiore Medical Center I.D. Clinic
The Bronx, New York, 10467
About this study
The hypothesis of this study is that the level of adherence necessary to achieve HIV virologic suppression with a ritonavir boosted protease inhibitor regimen (i.e. lopinavir/ritonavir) is less than the 95% rate observed in the published literature with unboosted regimens.
Read the detailed description
The existing dogma is that patients receiving highly active antiretroviral therapy (HAART) to treat their HIV infection must take at least 95% of prescribed doses in order to maintain full suppression of viral replication. This belief is largely based on a single study that was performed between 1997 and 1999 (Ann Int Med 2000;133:21-30). The vast majority of patients in this study were receiving regimens based on either indinavir, nelfinavir, ritonavir, or saquinavir. All of these agents have relatively short half-lives, and therefore must be taken on time two or three times per day. Newer medications such as lopinavir/ritonavir (Kaletra) feature much more favorable pharmacokinetic profiles. On the basis of improved pharmacokinetics, there is reason to believe that regimens built around such agents may be more forgiving of missed medication doses.
This study aims to enroll 90 patients from the MMC I.D. Clinic who are either receiving or are about to receive Kaletra. Patients who agree to participate will be furnished with a MEMS cap, a bottle cap that electronically records each time that the bottle is opened and stores the data for computer download, and will undergo electronic monitoring of their Kaletra adherence for a period of siz months. Adherence data will not be reviewed during the study, but at study end (and at interim time points), the investigators will analyze the MEMS cap data from patients who have completed the study in order to determine the threshold value of adherence necessary to achieve satisfactory rates (i.e. 70-80%) of complete virologic suppression.
An additional aim of the study is to collect specimens from patients receiving Kaletra based regimens who experience virologic failure and to archive them for possible studies of genotypic and phenotypic resistance in the future.
- Conditions
- HIV Infection
- Being tested
- MEMS cap
- Keywords
- HIV, Adherence, Antiretroviral therapy, Protease inhibitor, Lopinavir
- Medical subject headings
- HIV Infections
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
MEMS capDevice
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted20 Sep 2005 (estimated)
- Study startMay 2004
- Study completionMar 2006
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 HIV InfectionStudies of the same condition, open and under way.
- More trials run by Montefiore Medical CenterThe 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
- Observational
- Observational model
- Cohort
- Time perspective
- Prospective
- Enrolment
- 90 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Montefiore Medical Center
- Sponsor type
- University, hospital or other
- Collaborators
- Abbott
- Investigators
- Jonathan Shuter, MD, Principal investigator, Montefiore Medical Center
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00200369
- Sponsor's protocol ID
- 03-10-268
- Other IDs
- Abbott Laboratories #378-03-71
- Status last verified
- Nov 2009
- First submitted
- 12 Sep 2005
- Last updated
- 5 Nov 2009
- Results posted
- No
Publications
Shuter J, Sarlo JA, Kanmaz TJ, Rode RA, Zingman BS. HIV-infected patients receiving lopinavir/ritonavir-based antiretroviral therapy achieve high rates of virologic suppression despite adherence rates less than 95%. J Acquir Immune Defic Syndr. 2007 May 1;45(1):4-8. doi: 10.1097/QAI.0b013e318050d8c2.
PubMed 17460469
Study at a glance
From the registry record, last updated by the sponsor on 5 Nov 2009. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Characterization of the Adherence Threshold for HIV Suppression of a Kaletra-based Regimen
- ClinicalTrials.gov ID
- NCT00200369
- Acronym / sponsor ID
- 03-10-268
- Conditions
- HIV Infection
- Keywords
- HIV, Adherence, Antiretroviral therapy, Protease inhibitor, Lopinavir
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 90 participants (estimated)
- Lead sponsor
- Montefiore Medical CenterUniversity, hospital or other
- Collaborators
- Abbott
- Study start
- May 2004
- Study completion
- Mar 2006 (actual)
- First posted
- 20 Sep 2005 (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 hypothesis of this study is that the level of adherence necessary to achieve HIV virologic suppression with a ritonavir boosted protease inhibitor regimen (i.e. lopinavir/ritonavir) is less than the 95% rate observed in the published literature with unboosted regimens.
Detailed description
The existing dogma is that patients receiving highly active antiretroviral therapy (HAART) to treat their HIV infection must take at least 95% of prescribed doses in order to maintain full suppression of viral replication. This belief is largely based on a single study that was performed between 1997 and 1999 (Ann Int Med 2000;133:21-30). The vast majority of patients in this study were receiving regimens based on either indinavir, nelfinavir, ritonavir, or saquinavir. All of these agents have relatively short half-lives, and therefore must be taken on time two or three times per day. Newer medications such as lopinavir/ritonavir (Kaletra) feature much more favorable pharmacokinetic profiles. On the basis of improved pharmacokinetics, there is reason to believe that regimens built around such agents may be more forgiving of missed medication doses.
This study aims to enroll 90 patients from the MMC I.D. Clinic who are either receiving or are about to receive Kaletra. Patients who agree to participate will be furnished with a MEMS cap, a bottle cap that electronically records each time that the bottle is opened and stores the data for computer download, and will undergo electronic monitoring of their Kaletra adherence for a period of siz months. Adherence data will not be reviewed during the study, but at study end (and at interim time points), the investigators will analyze the MEMS cap data from patients who have completed the study in order to determine the threshold value of adherence necessary to achieve satisfactory rates (i.e. 70-80%) of complete virologic suppression.
An additional aim of the study is to collect specimens from patients receiving Kaletra based regimens who experience virologic failure and to archive them for possible studies of genotypic and phenotypic resistance in the future.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
Who may qualify
- Ages
- 19 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- Subjects will be recruited from the Montefiore Medical Center Infectious Diseases Clinic with eligibility criteria as listed below.
Key inclusion criteria (7 listed)
- HIV infection
- Receiving twice daily Kaletra at an FDA approved dosage
- Age>18 years
- CD4 and viral load available within seven day of enrollment
- Patient willingness to accept MEMS cap monitoring
Key exclusion criteria (2 listed)
- Provider or patient deem it unlikely that Kaletra therapy will continue for the ensuing 24 weeks
- Prescription of any medication that is contraindicated for Kaletra recipients
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 |
|---|---|---|
| MEMS cap | Device | – |
Primary outcome
Not reported in the source record.
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 5 Nov 2009.
- Derived from this study: PubMed 17460469Shuter J, Sarlo JA, Kanmaz TJ, Rode RA, Zingman BS. HIV-infected patients receiving lopinavir/ritonavir-based antiretroviral therapy achieve high rates of virologic suppression despite adherence rates less than 95%. J Acquir Immune Defic Syndr. 2007 May 1;45(1):4-8. doi: 10.1097/QAI.0b013e318050d8c2.
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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.
Jonathan Shuter, MD principal investigator
Montefiore Medical Center
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of HIV Infection, run by Montefiore Medical Center 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 7 inclusion and 2 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 5 Nov 2009. 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.
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.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00200369, 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 5 Nov 2009.