HIV Infections
Conditions
Keywords
HIV, Raltegravir, pharmacokinetics, Treatment Experienced
Brief summary
The purpose of this research study is to determine how much raltegravir gets into the male and female genital tract.
Detailed description
Although we have many medications to fight the HIV virus, very little is known about how much of these medications get into the genital tract. Raltegravir is a new HIV medication that blocks HIV growth and lowers the amount of virus in the blood in a way that is different than all other currently available HIV medications. Raltegravir was recently approved by the Food and Drug Administration (FDA) for use in HIV infected patients, but there is very little information concerning how much raltegravir will reach the genital tract of men or women. The purpose of this research study is to determine how much raltegravir gets into the male and female genital tract.
Interventions
400 mg tablets twice daily during duration of trial
Sponsors
Study design
Eligibility
Inclusion criteria
* Documentation of blood seropositive for HIV based on self report and confirmed by ELISA and Western blot or detectable HIV RNA * Stable anti-retroviral regimen for at least 3 weeks prior to enrollment * Capable of giving informed consent * Age 18 years and older
Exclusion criteria
* Neoplasms * Women who are pregnant or nursing * History or current evidence of any significant acute or chronic medical illness that in the opinion of the investigator would preclude the subject from safely participating in the study * Current use of phenobarbital, phenytoin, or rifampin * Any major surgery within 4 weeks of enrollment * Blood transfusion within 4 weeks of enrollment * Inability to tolerate oral medication * Inability to tolerate venipuncture, venous access, or genital tract sampling * History of recent (within 6 months) drug or alcohol abuse * Evidence of organ dysfunction or any clinically significant deviation from normal in the medical history, physical examination, vital signs, and or clinical laboratory determinations that in the opinion of the investigator would preclude the subject from safely participating in the study * Any other sound medical, psychiatric and or social reason for exclusion as determined by the investigator * History of allergy to study medication or related compounds
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Raltegravir Male Genital Tract Concentration | 8-10 hours after raltegravir dose | — |
| Raltegravir Female Genital Tract Concentration | 8-10 hours after raltegravir dose | — |
| Male Paired Plasma Concentration | 8-10 hours after raltegravir dose | This sample was taken as close to the time of genital tract sample as possible |
| Female Paired Plasma Concentration | 8-10 hours after raltegravir dose | This sample was taken as close to the time of genital tract sample as possible |
| Male Time Since Last Dose | 8-10 hours after raltegravir dose | This measure describes the amount of time that expired between when the dose was administered and when the sample was taken |
| Female Time Since Last Dose | 8-10 hours after raltegravir dose | This measure describes the amount of time that expired between when the dose was administered and when the sample was taken |
| Male Genital Tract:Plasma Concentration Ratio | 8-10 hours after raltegravir dose | Units of raltegravir concentration for genital tract and plasma sample are ng/mL |
| Female Genital Tract:Plasma Concentration Ratio | 8-10 hours after raltegravir dose | Units of raltegravir concentration for genital tract and plasma sample are ng/mL |
Countries
United States
Participant flow
Participants by arm
| Arm | Count |
|---|---|
| Raltegravir Raltegravir 400 mg tablets twice daily | 16 |
| Total | 16 |
Withdrawals & dropouts
| Period | Reason | FG000 |
|---|---|---|
| Overall Study | Unable to provide sample | 3 |
Baseline characteristics
| Characteristic | Raltegravir |
|---|---|
| Age, Categorical <=18 years | 0 Participants |
| Age, Categorical >=65 years | 0 Participants |
| Age, Categorical Between 18 and 65 years | 16 Participants |
| Age Continuous | 47 years STANDARD_DEVIATION 8.8 |
| Region of Enrollment United States | 16 participants |
| Sex: Female, Male Female | 8 Participants |
| Sex: Female, Male Male | 8 Participants |
Adverse events
| Event type | EG000 affected / at risk |
|---|---|
| deaths Total, all-cause mortality | — / — |
| other Total, other adverse events | 0 / 16 |
| serious Total, serious adverse events | 0 / 16 |
Outcome results
Female Genital Tract:Plasma Concentration Ratio
Units of raltegravir concentration for genital tract and plasma sample are ng/mL
Time frame: 8-10 hours after raltegravir dose
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Raltegravir | Female Genital Tract:Plasma Concentration Ratio | 2.2 ratio |
Female Paired Plasma Concentration
This sample was taken as close to the time of genital tract sample as possible
Time frame: 8-10 hours after raltegravir dose
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Raltegravir | Female Paired Plasma Concentration | 264.6 ng/mL |
Female Time Since Last Dose
This measure describes the amount of time that expired between when the dose was administered and when the sample was taken
Time frame: 8-10 hours after raltegravir dose
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Raltegravir | Female Time Since Last Dose | 8.5 hours |
Male Genital Tract:Plasma Concentration Ratio
Units of raltegravir concentration for genital tract and plasma sample are ng/mL
Time frame: 8-10 hours after raltegravir dose
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Raltegravir | Male Genital Tract:Plasma Concentration Ratio | 4.3 ratio |
Male Paired Plasma Concentration
This sample was taken as close to the time of genital tract sample as possible
Time frame: 8-10 hours after raltegravir dose
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Raltegravir | Male Paired Plasma Concentration | 172 ng/mL |
Male Time Since Last Dose
This measure describes the amount of time that expired between when the dose was administered and when the sample was taken
Time frame: 8-10 hours after raltegravir dose
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Raltegravir | Male Time Since Last Dose | 8.0 hours |
Raltegravir Female Genital Tract Concentration
Time frame: 8-10 hours after raltegravir dose
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Raltegravir | Raltegravir Female Genital Tract Concentration | 879.1 ng/mL |
Raltegravir Male Genital Tract Concentration
Time frame: 8-10 hours after raltegravir dose
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Raltegravir | Raltegravir Male Genital Tract Concentration | 485.1 ng/mL |