etravirine (INTELENCE)
DrugEtravirine 400 mg (four 100 mg or two 200 mg tablets) taken orally once a day with one pill of Truvada (200 mg of emtricitabine and 300 mg of tenofovir) taken orally once a day
Other names: TMC-125, Intelence
NCT Number: NCT00959894
The main study is a single arm, open-label, prospective study to assess antiretroviral activity and tolerability of etravirine (TMC-125) 400 mg once daily, given with fixed-dose tenofovir/emtricitabine, in treatment-naïve HIV-1-infected men and women. There are also a genital secretions pharmacokinetic (PK) sub-study and a metabolic sub-study. The purpose of the genital secretions PK sub-study is to gain information about drug levels and HIV-1 RNA in genital secretions when subjects are taking etravirine. The purpose of the metabolic sub-study is to learn about the effects of etravirine on body composition, as well as lipid and glucose levels.
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Notify Me18 year and older
All sexes
Interventional
Phase 2
The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States
Participants: There will be approximately 80 HIV-1-infected men and women aged 18 years or older who have taken less than or equal to 10 days of prior antiretroviral therapy and have never taken etravirine, dapivirine (TMC120), or rilpivirine (TMC 278) in the main study. There will be approximately 40 subjects who enroll in the main study that will be in the metabolic sub-study and approximately 20 subjects (10 pre-menopausal women and 10 men) who enroll in the main study that will be in the genital secretions PK sub-study.
Procedures (methods): For the main study subjects will take etravirine 400 mg once daily orally with fixed-dose tenofovir/emtricitabine (Truvada) one tablet once daily. For the genital secretions PK sub-study, genital secretion samples will be self-collected throughout the study except for the week 4 study visit where women will have the cervicovaginal sample at time 0 and at 24 hours collected by study staff. For the metabolic sub-study, waist measurements and dual energy x-ray absorptiometry (DEXA) scans will be performed at entry, week 24, and week 96, and 2-3 teaspoons of blood to check lipids, insulin, and glucose will be taken at entry and weeks 12, 24, 48, and 96.
Healthy volunteers accepted: No
Only the study team can determine whether someone qualifies for participation.
Inclusion criteria
NOTE: Acceptable documentation of lack of reproductive potential for a woman is self-reported history of being postmenopausal for at least 24 months, or having had surgical sterilization (hysterectomy, or bilateral oophorectomy, or bilateral tubal ligation) or of male partner's azoospermia. Acceptable documentation for a man is self-reported history of azoospermia.
Exclusion criteria
NOTE: Routine standard of care, including hepatitis B, influenza, pneumococcus, and tetanus vaccines are permitted.
Etravirine 400 mg (four 100 mg or two 200 mg tablets) taken orally once a day with one pill of Truvada (200 mg of emtricitabine and 300 mg of tenofovir) taken orally once a day
Other names: TMC-125, Intelence
Etravirine 400 mg (four 100 mg or two 200 mg tablets) taken orally once a day with one pill of Truvada (200 mg of emtricitabine and 300 mg of tenofovir) taken orally once a day
Other names: Tenofovir/emtricitabine
Time frame: 24 weeks
The primary study endpoint was the proportion of participants who achieved HIV-1 RNA <50 copies/ml at Week 24 of study participation. The per-protocol primary analysis was conducted intention-to-treat, with missing evaluations counted as failures. Achievement of HIV-1 viral load below 50 copies/ml was defined as having HIV-1 RNA <50 copies/ml during the Week 24 analysis window (>18 and <30 weeks post-entry).
Time frame: 48 weeks
This secondary outcome assessed the proportion of participants who achieved HIV-1 RNA <50 copies/ml at Week 48 of study treatment. The per-protocol analysis was conducted intention-to-treat, with missing evaluations counted as failures.
Time frame: 96 weeks
This secondary outcome assessed the proportion of participants who achieved HIV-1 RNA <50 copies/ml at Week 96 of study treatment. The per-protocol analysis was conducted intention-to-treat, with missing evaluations counted as failures.
Time frame: 24 weeks
This secondary outcome assessed the proportion of participants who achieved HIV-1 RNA <200 copies/ml at Week 24 of study treatment. The per-protocol analysis was conducted intention-to-treat, with missing evaluations counted as failures.
Time frame: 48 weeks
This secondary outcome assessed the proportion of participants who achieved HIV-1 RNA <200 copies/ml at Week 48 of study treatment. The per-protocol analysis was conducted intention-to-treat, with missing evaluations counted as failures.
Time frame: 96 weeks
This secondary outcome assessed the proportion of participants who achieved HIV-1 RNA 200 copies/ml at Week 96 of study treatment. The per-protocol analysis was conducted intention-to-treat, with missing evaluations counted as failures.
Time frame: Baseline to 24 weeks
The per-protocol analysis of change in CD4+ cell count from baseline to Week 24 was calculated using the measurement closest to schedule and within the analysis window, and quantified with an estimated median and distribution-free 95% confidence interval (CI).
Time frame: Baseline to 48 weeks
The per-protocol intention-to-treat analysis of change in CD4+ cell count from baseline to Week 48 was calculated using the measurement closest to schedule and within the analysis window, and quantified with an estimated median and distribution-free 95% CI.
Time frame: Baseline to 96 weeks
The per-protocol intention-to-treat analysis of change in CD4+ cell count from baseline to Week 96 was calculated using the measurement closest to schedule and within the analysis window, and quantified with an estimated median and distribution-free 95% CI.
Time frame: 96 weeks
Per-protocol, genotype testing was conducted at confirmation of virologic failure if the confirmatory HIV-1 RNA was above the laboratory-specified threshold of 500 copies/mL. HIV-1 genotype was determined using the TRUGENE® HIV-1 assay (Siemens Healthcare Diagnostics, Tarrytown, NY)
Time frame: 96 weeks
The safety/tolerability endpoint was defined as the first grade 3 or higher sign, symptom or laboratory abnormality that was at least one grade higher than baseline among participants ever exposed to etravirine (regardless of treatment status), or permanent discontinuation of etravirine due to any toxicity (regardless of grade). Modification of tenofovir/emtricitabine was not a safety/tolerability event.
The Kaplan-Meier method was used to estimate the proportion of participants ever exposed to etravirine who remained event-free through Week 96, with a 95% CI using Greenwood's variance estimate and a log-log transformation. Time was handled as continuous (weeks from treatment start to event or censoring).
Time frame: 96 weeks
The Kaplan-Meier method was used to estimate the proportion of participants ever exposed to etravirine who remained event-free through Week 96, with a 95% CI using Greenwood's variance estimate and a log-log transformation. Time was handled as continuous (weeks from treatment start to event or censoring).
Time frame: Baseline to 24 weeks
Metabolic data analyses were conducted as-treated. Changes in total cholesterol, high-density lipoprotein (HDL) cholesterol, low-density lipoprotein (LDL) cholesterol, triglycerides, and fasting blood glucose from baseline to follow-up were calculated using the value closest to schedule and within the analysis window, and were quantified with the median and inter-quartile range.
Time frame: Baseline to 24 weeks
Metabolic data analyses were conducted as-treated. Insulin resistance was estimated by the homeostasis model assessment of insulin resistance (HOMA-IR), and was calculated as [fasting insulin (µU/mL) × fasting glucose (mmol/L)]/22.5. Changes from baseline to follow-up were calculated using the value closest to schedule and within the analysis window, and were quantified with the median and inter-quartile range.
Time frame: Baseline to 48 weeks
Metabolic data analyses were conducted as-treated. Changes in total cholesterol, high-density lipoprotein (HDL) cholesterol, low-density lipoprotein (LDL) cholesterol, triglycerides, and fasting blood glucose from baseline to follow-up were calculated using the value closest to schedule and within the analysis window, and were quantified with the median and inter-quartile range.
Time frame: Baseline to 48 weeks
Metabolic data analyses were conducted as-treated. Insulin resistance was estimated by the homeostasis model assessment of insulin resistance (HOMA-IR), and was calculated as [fasting insulin (µU/mL) × fasting glucose (mmol/L)]/22.5. Changes from baseline to follow-up were calculated using the value closest to schedule and within the analysis window, and were quantified with the median and inter-quartile range.
Time frame: Baseline to 96 weeks
Metabolic data analyses were conducted as-treated. Changes in total cholesterol, high-density lipoprotein (HDL) cholesterol, low-density lipoprotein (LDL) cholesterol, triglycerides, and fasting blood glucose from baseline to follow-up were calculated using the value closest to schedule and within the analysis window, and were quantified with the median and inter-quartile range. Insulin resistance was estimated by the homeostasis model assessment of insulin resistance (HOMA-IR), and was calculated as [fasting insulin (µU/mL) × fasting glucose (mmol/L)]/22.5.
Time frame: Baseline to 96 weeks
Metabolic data analyses were conducted as-treated. Insulin resistance was estimated by the homeostasis model assessment of insulin resistance (HOMA-IR), and was calculated as [fasting insulin (µU/mL) × fasting glucose (mmol/L)]/22.5. Changes from baseline to follow-up were calculated using the value closest to schedule and within the analysis window, and were quantified with the median and inter-quartile range.
Time frame: Baseline to 24 weeks
Changes from baseline to follow-up in limb fat, trunk fat, total body fat, and lean mass were calculated. Whole body Dual X-ray Absorptiometry (DEXA) scans (Hologic Discovery W, Hologic Inc., Bedford, MA) were conducted at baseline, Week 24, and Week 96 to assess body fat distribution. Calculations of change from baseline to follow-up used the value closest to schedule and within the analysis window, and were quantified with the estimated median and distribution-free 95% CI.
Time frame: Baseline to 96 weeks
Changes from baseline to follow-up in limb fat, trunk fat, total body fat, and lean mass were calculated. Whole body Dual X-ray Absorptiometry (DEXA) scans (Hologic Discovery W, Hologic Inc., Bedford, MA) were conducted at baseline, Week 24, and Week 96 to assess body fat distribution. Calculations of change from baseline to follow-up used the value closest to schedule and within the analysis window, and were quantified with the estimated median and distribution-free 95% CI.
Time frame: Baseline to 24 weeks
Change from baseline to follow-up in fat mass ratio was calculated. Whole body Dual X-ray Absorptiometry (DEXA) scans (Hologic Discovery W, Hologic Inc., Bedford, MA) were conducted at baseline, Week 24, and Week 96 to assess body fat distribution. Fat mass ratio was calculated as the ratio of trunk fat percentage and lower limb fat percentage (% trunk fat mass / % lower limb fat mass). Calculations of change from baseline to follow-up used the value closest to schedule and within the analysis window, and were quantified with the estimated median and distribution-free 95% CI.
Time frame: 4 weeks
This secondary outcome measure assessed the ratio of semen:plasma concentration of etravirine in paired semen and plasma samples collected from 14 male participants at Week 4 of treatment with etravirine and fixed dose tenofovir/emtricitabine.
Time frame: Baseline to 96 weeks
Change from baseline to follow-up in fat mass ratio was calculated. Whole body Dual X-ray Absorptiometry (DEXA) scans (Hologic Discovery W, Hologic Inc., Bedford, MA) were conducted at baseline, Week 24, and Week 96 to assess body fat distribution. Fat mass ratio was calculated as the ratio of trunk fat percentage and lower limb fat percentage (% trunk fat mass / % lower limb fat mass). Calculations of change from baseline to follow-up used the value closest to schedule and within the analysis window, and were quantified with the estimated median and distribution-free 95% CI.
Time frame: At or after 4 weeks
Population pharmacokinetics were calculated using sparse sampling. Plasma concentrations of etravirine measured in samples from participants who provided blood samples at multiple study visits, with variation in sampling times relative to dosing of etravirine used to cover the spectrum of the dosing schedule. Model simulations and fitting were performed with NONMEM ® 7.3. (ICON, plc) and model exploration was performed with Berkeley Madonna (Berkeley, CA, USA)
Time frame: At or after 4 weeks
Population pharmacokinetics were calculated using sparse sampling. Plasma concentrations of etravirine measured in samples from participants who provided blood samples at multiple study visits, with variation in sampling times relative to dosing of etravirine used to cover the spectrum of the dosing schedule. Model simulations and fitting were performed with NONMEM ® 7.3. (ICON, plc) and model exploration was performed with Berkeley Madonna (Berkeley, CA, USA)
University of North Carolina, Chapel Hill
Other
Antiretroviral Activity and Tolerability of Once Daily Etravirine in Treatment-Naïve Adults With HIV-1 Infection
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