Trial Outcomes & Findings for Trial of Maraviroc (UK-427,857) in Combination With Optimized Background Therapy Versus Optimized Background Therapy Alone for the Treatment of Antiretroviral-Experienced NonCCR5-Tropic HIV-1 Infected Subjects (NCT NCT00098748)

NCT ID: NCT00098748

Last Updated: 2010-12-07

Results Overview

Change from baseline in log 10-transformed plasma viral load (HIV-1 RNA) levels (log 10 copies per milliliter \[log10 copies/mL\]). Baseline value calculated as average of pre-dose measurements collected at screening, randomization, and baseline visits.

Recruitment status

COMPLETED

Study phase

PHASE2/PHASE3

Target enrollment

190 participants

Primary outcome timeframe

Baseline to Week 24 and Week 48

Results posted on

2010-12-07

Participant Flow

Participant milestones

Participant milestones
Measure
Maraviroc QD
Maraviroc 150 mg by mouth (PO) once daily (QD) in combination with optimized background therapy (OBT) (3 to 6 drugs based on treatment history and resistance testing). The 150 mg QD arm = placebo drug in the morning and active drug in the evening.
Maraviroc BID
Maraviroc 150 mg PO twice a day (BID) in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The 150 mg BID arm = active drug in the morning and evening.
Placebo
Placebo BID in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The placebo arm = placebo drug in the morning and evening.
Assigned to Study Treatment
STARTED
63
63
64
Assigned to Study Treatment
COMPLETED
63
61
62
Assigned to Study Treatment
NOT COMPLETED
0
2
2
Received Study Treatment
STARTED
63
61
62
Received Study Treatment
Dual-tropic Subjects by Phenotype Assay
57
52
58
Received Study Treatment
COMPLETED
15
25
18
Received Study Treatment
NOT COMPLETED
48
36
44
Continued on Open-Label Treatment
STARTED
15
25
0
Continued on Open-Label Treatment
COMPLETED
7
10
0
Continued on Open-Label Treatment
NOT COMPLETED
8
15
0

Reasons for withdrawal

Reasons for withdrawal
Measure
Maraviroc QD
Maraviroc 150 mg by mouth (PO) once daily (QD) in combination with optimized background therapy (OBT) (3 to 6 drugs based on treatment history and resistance testing). The 150 mg QD arm = placebo drug in the morning and active drug in the evening.
Maraviroc BID
Maraviroc 150 mg PO twice a day (BID) in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The 150 mg BID arm = active drug in the morning and evening.
Placebo
Placebo BID in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The placebo arm = placebo drug in the morning and evening.
Assigned to Study Treatment
Randomized, but not treated
0
2
2
Received Study Treatment
Death
2
1
2
Received Study Treatment
Adverse Event
1
2
5
Received Study Treatment
Lack of Efficacy
40
27
27
Received Study Treatment
Other
2
2
6
Received Study Treatment
Subject defaulted
3
4
4
Continued on Open-Label Treatment
Adverse Event
0
1
0
Continued on Open-Label Treatment
Lack of Efficacy
1
2
0
Continued on Open-Label Treatment
Other reason includes protocol violation
6
7
0
Continued on Open-Label Treatment
Lost to Follow-up
1
1
0
Continued on Open-Label Treatment
Withdrawal by Subject
0
4
0

Baseline Characteristics

Trial of Maraviroc (UK-427,857) in Combination With Optimized Background Therapy Versus Optimized Background Therapy Alone for the Treatment of Antiretroviral-Experienced NonCCR5-Tropic HIV-1 Infected Subjects

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Maraviroc QD
n=63 Participants
Maraviroc 150 mg by mouth (PO) once daily (QD) in combination with optimized background therapy (OBT) (3 to 6 drugs based on treatment history and resistance testing). The 150 mg QD arm = placebo drug in the morning and active drug in the evening.
Maraviroc BID
n=61 Participants
Maraviroc 150 mg PO twice a day (BID) in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The 150 mg BID arm = active drug in the morning and evening.
Placebo
n=62 Participants
Placebo BID in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The placebo arm = placebo drug in the morning and evening.
Total
n=186 Participants
Total of all reporting groups
Age, Customized
<18 years
2 participants
n=5 Participants
2 participants
n=7 Participants
0 participants
n=5 Participants
4 participants
n=4 Participants
Age, Customized
Between 18 and 24 years
1 participants
n=5 Participants
1 participants
n=7 Participants
1 participants
n=5 Participants
3 participants
n=4 Participants
Age, Customized
Between 25 and 34 years
2 participants
n=5 Participants
3 participants
n=7 Participants
2 participants
n=5 Participants
7 participants
n=4 Participants
Age, Customized
Between 35 and 44 years
30 participants
n=5 Participants
31 participants
n=7 Participants
31 participants
n=5 Participants
92 participants
n=4 Participants
Age, Customized
Between 45 and 54 years
25 participants
n=5 Participants
21 participants
n=7 Participants
20 participants
n=5 Participants
66 participants
n=4 Participants
Age, Customized
Between 55 and 64 years
3 participants
n=5 Participants
3 participants
n=7 Participants
7 participants
n=5 Participants
13 participants
n=4 Participants
Age, Customized
≥65 years
0 participants
n=5 Participants
0 participants
n=7 Participants
1 participants
n=5 Participants
1 participants
n=4 Participants
Age Continuous
42.7 years
FULL_RANGE 8.4 • n=5 Participants
42.5 years
FULL_RANGE 8.0 • n=7 Participants
44.6 years
FULL_RANGE 8.3 • n=5 Participants
43.3 years
FULL_RANGE 8.2 • n=4 Participants
Sex: Female, Male
Female
10 Participants
n=5 Participants
6 Participants
n=7 Participants
9 Participants
n=5 Participants
25 Participants
n=4 Participants
Sex: Female, Male
Male
53 Participants
n=5 Participants
55 Participants
n=7 Participants
53 Participants
n=5 Participants
161 Participants
n=4 Participants

PRIMARY outcome

Timeframe: Baseline to Week 24 and Week 48

Population: Full Analysis Set (FAS)-as treated: all randomized subjects classified as dual-tropic by phenotype assay; received at least 1 dose of study treatment. Missing values: discontinuations (DC) imputed as baseline value (change from baseline=0); missing data imputed as Last Observation Carried Forward (LOCF).

Change from baseline in log 10-transformed plasma viral load (HIV-1 RNA) levels (log 10 copies per milliliter \[log10 copies/mL\]). Baseline value calculated as average of pre-dose measurements collected at screening, randomization, and baseline visits.

Outcome measures

Outcome measures
Measure
Maraviroc QD
n=57 Participants
Maraviroc 150 mg by mouth (PO) once daily (QD) in combination with optimized background therapy (OBT) (3 to 6 drugs based on treatment history and resistance testing). The 150 mg QD arm = placebo drug in the morning and active drug in the evening.
Maraviroc BID
n=52 Participants
Maraviroc 150 mg PO twice a day (BID) in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The 150 mg BID arm = active drug in the morning and evening.
Placebo
n=58 Participants
Placebo BID in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The placebo arm = placebo drug in the morning and evening.
Change From Baseline in Human Immunodeficiency Virus (HIV-1) Viral Load (Ribonucleic Acid [RNA])
Week 48
-0.604 log10 copies/mL
Standard Error 0.1596
-1.105 log10 copies/mL
Standard Error 0.2071
0.839 log10 copies/mL
Standard Error 0.1851
Change From Baseline in Human Immunodeficiency Virus (HIV-1) Viral Load (Ribonucleic Acid [RNA])
Week 24
-0.890 log10 copies/mL
Standard Error 0.1706
-1.194 log10 copies/mL
Standard Error 0.2060
-0.953 log10 copies/mL
Standard Error 0.1795

SECONDARY outcome

Timeframe: Week 24, Week 48

Population: FAS - as treated dual-tropic subjects. Missing values counted as failures/non-responders (counted as not achieving the stated criterion).

Outcome measures

Outcome measures
Measure
Maraviroc QD
n=57 Participants
Maraviroc 150 mg by mouth (PO) once daily (QD) in combination with optimized background therapy (OBT) (3 to 6 drugs based on treatment history and resistance testing). The 150 mg QD arm = placebo drug in the morning and active drug in the evening.
Maraviroc BID
n=52 Participants
Maraviroc 150 mg PO twice a day (BID) in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The 150 mg BID arm = active drug in the morning and evening.
Placebo
n=58 Participants
Placebo BID in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The placebo arm = placebo drug in the morning and evening.
Number of Subjects With HIV-1 RNA Levels < 400 Copies/mL
Week 24
14 participants
16 participants
14 participants
Number of Subjects With HIV-1 RNA Levels < 400 Copies/mL
Week 48
13 participants
16 participants
13 participants

SECONDARY outcome

Timeframe: Baseline, Week 24, Week 48

Population: FAS-as treated dual-tropic subjects. Missing values counted as failures/non-responders (counted as not achieving the stated criterion).

Number of subjects with HIV-1 RNA levels \< 400 copies/mL or at least 0.5 log 10-transformed decrease from baseline in HIV-1 RNA levels. Baseline value calculated as average of pre-dose measurements collected at screening, randomization, and baseline visits.

Outcome measures

Outcome measures
Measure
Maraviroc QD
n=57 Participants
Maraviroc 150 mg by mouth (PO) once daily (QD) in combination with optimized background therapy (OBT) (3 to 6 drugs based on treatment history and resistance testing). The 150 mg QD arm = placebo drug in the morning and active drug in the evening.
Maraviroc BID
n=52 Participants
Maraviroc 150 mg PO twice a day (BID) in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The 150 mg BID arm = active drug in the morning and evening.
Placebo
n=58 Participants
Placebo BID in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The placebo arm = placebo drug in the morning and evening.
Number of Subjects With HIV-1 RNA Levels < 400 Copies/mL or at Least 0.5 Log 10-transformed Decrease From Baseline in HIV-1 RNA Levels
Week 48
14 participants
22 participants
18 participants
Number of Subjects With HIV-1 RNA Levels < 400 Copies/mL or at Least 0.5 Log 10-transformed Decrease From Baseline in HIV-1 RNA Levels
Week 24
24 participants
25 participants
23 participants

SECONDARY outcome

Timeframe: Baseline, Week 24, Week 48

Population: FAS-as treated dual-tropic subjects. Missing values counted as failures/non-responders (counted as not achieving the stated criterion).

Number of subjects with HIV-1 RNA levels \< 400 copies/mL or at least 1.0 log 10-transformed decrease from baseline in HIV-1 RNA levels. Baseline value calculated as average of pre-dose measurements collected at screening, randomization, and baseline visits.

Outcome measures

Outcome measures
Measure
Maraviroc QD
n=57 Participants
Maraviroc 150 mg by mouth (PO) once daily (QD) in combination with optimized background therapy (OBT) (3 to 6 drugs based on treatment history and resistance testing). The 150 mg QD arm = placebo drug in the morning and active drug in the evening.
Maraviroc BID
n=52 Participants
Maraviroc 150 mg PO twice a day (BID) in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The 150 mg BID arm = active drug in the morning and evening.
Placebo
n=58 Participants
Placebo BID in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The placebo arm = placebo drug in the morning and evening.
Number of Subjects With HIV-1 RNA Levels < 400 Copies/mL or at Least 1.0 Log 10-transformed Decrease From Baseline in HIV-1 RNA Levels
Week 24
18 participants
23 participants
21 participants
Number of Subjects With HIV-1 RNA Levels < 400 Copies/mL or at Least 1.0 Log 10-transformed Decrease From Baseline in HIV-1 RNA Levels
Week 48
13 participants
20 participants
15 participants

SECONDARY outcome

Timeframe: Baseline, Week 24, Week 48

Population: FAS - as treated dual-tropic subjects. Missing values counted as failures/non-responders (counted as not achieving the stated criterion).

Outcome measures

Outcome measures
Measure
Maraviroc QD
n=57 Participants
Maraviroc 150 mg by mouth (PO) once daily (QD) in combination with optimized background therapy (OBT) (3 to 6 drugs based on treatment history and resistance testing). The 150 mg QD arm = placebo drug in the morning and active drug in the evening.
Maraviroc BID
n=52 Participants
Maraviroc 150 mg PO twice a day (BID) in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The 150 mg BID arm = active drug in the morning and evening.
Placebo
n=58 Participants
Placebo BID in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The placebo arm = placebo drug in the morning and evening.
Number of Subjects With HIV-1 RNA Levels < 50 Copies/mL
Week 24
12 participants
14 participants
9 participants
Number of Subjects With HIV-1 RNA Levels < 50 Copies/mL
Week 48
10 participants
14 participants
13 participants

SECONDARY outcome

Timeframe: Baseline to Week 24 and Week 48

Population: FAS - as treated dual-tropic subjects. Placebo N: 4 subjects did not have on-treatment information. Missing data imputed using LOCF.

Change from baseline in CD4 cell count (measured as cells per microliter \[cells/µL\]). Baseline value calculated as the average of pre-dose measurements collected at screening, randomization, and baseline visits.

Outcome measures

Outcome measures
Measure
Maraviroc QD
n=57 Participants
Maraviroc 150 mg by mouth (PO) once daily (QD) in combination with optimized background therapy (OBT) (3 to 6 drugs based on treatment history and resistance testing). The 150 mg QD arm = placebo drug in the morning and active drug in the evening.
Maraviroc BID
n=52 Participants
Maraviroc 150 mg PO twice a day (BID) in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The 150 mg BID arm = active drug in the morning and evening.
Placebo
n=54 Participants
Placebo BID in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The placebo arm = placebo drug in the morning and evening.
Change From Baseline in CD4 Cell Count
Week 24
59.237 cells/µL
Standard Error 8.9661
62.651 cells/µL
Standard Error 10.0234
36.367 cells/µL
Standard Error 8.4477
Change From Baseline in CD4 Cell Count
Week 48
65.86 cells/µL
Standard Error 10.822
78.87 cells/µL
Standard Error 11.566
51.29 cells/µL
Standard Error 12.523

SECONDARY outcome

Timeframe: Baseline to Week 24 and Week 48

Population: FAS - as treated dual-tropic subjects. Placebo N: 4 subjects did not have on-treatment information. Missing data imputed using LOCF.

Change from baseline in CD8 cell count (measured as cells/µL). Baseline value calculated as the average of pre-dose measurements collected at screening, randomization, and baseline visits.

Outcome measures

Outcome measures
Measure
Maraviroc QD
n=57 Participants
Maraviroc 150 mg by mouth (PO) once daily (QD) in combination with optimized background therapy (OBT) (3 to 6 drugs based on treatment history and resistance testing). The 150 mg QD arm = placebo drug in the morning and active drug in the evening.
Maraviroc BID
n=52 Participants
Maraviroc 150 mg PO twice a day (BID) in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The 150 mg BID arm = active drug in the morning and evening.
Placebo
n=54 Participants
Placebo BID in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The placebo arm = placebo drug in the morning and evening.
Change From Baseline in CD8 Cell Count
Week 24
391.061 cells/µL
Standard Error 57.0135
322.683 cells/µL
Standard Error 68.3315
154.293 cells/µL
Standard Error 46.8100
Change From Baseline in CD8 Cell Count
Week 48
351.23 cells/µL
Standard Error 54.653
342.87 cells/µL
Standard Error 72.222
192.30 cells/µL
Standard Error 62.578

SECONDARY outcome

Timeframe: Day 1 through Week 24 and through Week 48

Population: FAS - as treated dual-tropic subjects; (n)=number of subjects with virologic failure at observation for maraviroc QD, maraviroc BID, and placebo, respectively; Week 48 result values (0.00)=virologic failure at Day 0.

Time to virologic failure based on observed HIV-1 RNA levels and failure events (death; permanent discontinuation of test drug \[perm DC\]; lost to follow-up \[LTFU\]; new anti-retroviral drug added (except background drug change to drug of same class); or on open label for early non-response or rebound). Failure: at Time 0 if level not \<400 copies/mL (2 consecutive visits) before event(s) or last available visit; at time of earliest event if level \<400 copies/mL (on 2 consecutive visits); failure if level ≥400 copies/mL (2 consecutive visits) or 1 visit ≥400 copies/mL followed by perm DC or LTFU.

Outcome measures

Outcome measures
Measure
Maraviroc QD
n=57 Participants
Maraviroc 150 mg by mouth (PO) once daily (QD) in combination with optimized background therapy (OBT) (3 to 6 drugs based on treatment history and resistance testing). The 150 mg QD arm = placebo drug in the morning and active drug in the evening.
Maraviroc BID
n=52 Participants
Maraviroc 150 mg PO twice a day (BID) in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The 150 mg BID arm = active drug in the morning and evening.
Placebo
n=58 Participants
Placebo BID in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The placebo arm = placebo drug in the morning and evening.
Time (50% Quartile Point Estimate) to Virologic Failure
Week 24 (n=35, 23, 29)
88.00 days
Interval 59.0 to
Parameter was not calculable.
189.00 days
Interval 113.0 to 189.0
100.00 days
Interval 60.0 to
Parameter was not calculable.
Time (50% Quartile Point Estimate) to Virologic Failure
Week 48 (n=45, 37, 44)
0.00 days
Parameters were not calculable.
0.00 days
Interval 0.0 to 142.0
0.00 days
Interval 0.0 to 29.0

SECONDARY outcome

Timeframe: Baseline to Week 24 and Week 48

Population: FAS - as treated dual-tropic subjects. Discontinuations prior to time point of analysis imputed as 0.

Change from baseline of TAD in log10 HIV-1 RNA viral load calculated as \[AUC of HIV-1 RNA viral load (log10 copies/mL) / time period\] - Baseline HIV-1 RNA viral load (log10 copies/mL). Baseline value calculated as the average of pre-dose measurements collected at screening, randomization, and baseline visits.

Outcome measures

Outcome measures
Measure
Maraviroc QD
n=57 Participants
Maraviroc 150 mg by mouth (PO) once daily (QD) in combination with optimized background therapy (OBT) (3 to 6 drugs based on treatment history and resistance testing). The 150 mg QD arm = placebo drug in the morning and active drug in the evening.
Maraviroc BID
n=52 Participants
Maraviroc 150 mg PO twice a day (BID) in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The 150 mg BID arm = active drug in the morning and evening.
Placebo
n=58 Participants
Placebo BID in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The placebo arm = placebo drug in the morning and evening.
Change From Baseline in Time Averaged Difference (TAD) in log10 HIV-1 RNA
Week 24
-0.850 log10 copies/mL
Standard Error 0.1510
-1.151 log10 copies/mL
Standard Error 0.1895
-0.926 log10 copies/mL
Standard Error 0.1679
Change From Baseline in Time Averaged Difference (TAD) in log10 HIV-1 RNA
Week 48
-0.561 log10 copies/mL
Standard Error 0.1475
-1.066 log10 copies/mL
Standard Error 0.1962
-0.776 log10 copies/mL
Standard Error 0.1700

SECONDARY outcome

Timeframe: Baseline through Week 48

Population: FAS-as treated dual-tropic subjects. Genotype and phenotype at screening and at time of failure were not summarized as planned.

Number of subjects per genotype and phenotype (tests for presence of non CCR5-tropic HIV-1 and for resistance to reverse transcriptase, protease, and fusion inhibitors) at baseline and at time of failure through Week 48 visit. Sensitivity to drug categorized as 0-1, 2-4, \>4; scores defined as 0=resistance, 1=sensitive or susceptible with higher number indicating greater sensitivity or susceptibility.

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: Screening through Week 24

Population: FAS-as treated; N=subjects with TX failure due to insufficient clinical response and who had a tropism assessment at Screening. Subjects with DC prior to timepoint not included; LOCF if no result (viral load too low for analysis).

Number of subjects per Tropism status (CCR5 \[R5\], CXCR4 \[X4\], Dual Mixed \[DM\], or Non-reportable/Non-phenotypable \[NR/NP\]) at Screening (Scr) and at time of treatment failure (Tx fail). Treatment failure defined as insufficient clinical response. HIV-1 RNA viral load \<500 copies/ml categorized as below lower limit of quantification (BLQ). Tropism may have been assessed at either the Screening or Baseline visit. The assessment for time of treatment failure is defined as the last on-treatment assessment.

Outcome measures

Outcome measures
Measure
Maraviroc QD
n=35 Participants
Maraviroc 150 mg by mouth (PO) once daily (QD) in combination with optimized background therapy (OBT) (3 to 6 drugs based on treatment history and resistance testing). The 150 mg QD arm = placebo drug in the morning and active drug in the evening.
Maraviroc BID
n=24 Participants
Maraviroc 150 mg PO twice a day (BID) in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The 150 mg BID arm = active drug in the morning and evening.
Placebo
n=24 Participants
Placebo BID in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The placebo arm = placebo drug in the morning and evening.
Number of Subjects Per Tropism Status at Screening and at the Time of Treatment Failure (Analysis at Week 24)
Scr DM, Tx fail: NR/NP
0 participants
0 participants
1 participants
Number of Subjects Per Tropism Status at Screening and at the Time of Treatment Failure (Analysis at Week 24)
Scr: DM, Tx fail: DM
19 participants
9 participants
16 participants
Number of Subjects Per Tropism Status at Screening and at the Time of Treatment Failure (Analysis at Week 24)
Scr NR/NP, Tx fail: NR/NP
0 participants
1 participants
0 participants
Number of Subjects Per Tropism Status at Screening and at the Time of Treatment Failure (Analysis at Week 24)
Scr: DM, Tx fail: X4
12 participants
12 participants
2 participants
Number of Subjects Per Tropism Status at Screening and at the Time of Treatment Failure (Analysis at Week 24)
Scr DM, Tx fail: BLQ
1 participants
0 participants
0 participants
Number of Subjects Per Tropism Status at Screening and at the Time of Treatment Failure (Analysis at Week 24)
Scr: X4, Tx fail: X4
1 participants
1 participants
1 participants
Number of Subjects Per Tropism Status at Screening and at the Time of Treatment Failure (Analysis at Week 24)
Scr: X4, Tx fail: DM
1 participants
1 participants
0 participants
Number of Subjects Per Tropism Status at Screening and at the Time of Treatment Failure (Analysis at Week 24)
Scr: DM, Tx fail: R5
1 participants
0 participants
4 participants

SECONDARY outcome

Timeframe: Screening through Week 48

Population: FAS-as treated; N=subjects with TX failure due to insufficient clinical response and who had a tropism assessment at Screening. Subjects with DC prior to timepoint not included; LOCF if no result (viral load too low for analysis).

Number of subjects per Tropism status (CCR5 \[R5\], CXCR4 \[X4\], Dual Mixed \[DM\], or Non-reportable/Non-phenotypable \[NR/NP\]) at Screening (Scr) and at time of treatment failure (Tx fail). Treatment failure defined as insufficient clinical response. HIV-1 RNA viral load \<500 copies/ml categorized as below lower limit of quantification (BLQ). Tropism may have been assessed at either the Screening or Baseline visit. The assessment for time of treatment failure is defined as the last on-treatment assessment.

Outcome measures

Outcome measures
Measure
Maraviroc QD
n=40 Participants
Maraviroc 150 mg by mouth (PO) once daily (QD) in combination with optimized background therapy (OBT) (3 to 6 drugs based on treatment history and resistance testing). The 150 mg QD arm = placebo drug in the morning and active drug in the evening.
Maraviroc BID
n=27 Participants
Maraviroc 150 mg PO twice a day (BID) in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The 150 mg BID arm = active drug in the morning and evening.
Placebo
n=27 Participants
Placebo BID in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The placebo arm = placebo drug in the morning and evening.
Number of Subjects Per Tropism Status at Screening and Time of Treatment Failure (Analysis at Week 48)
Scr: X4, Tx fail: X4
1 participants
1 participants
1 participants
Number of Subjects Per Tropism Status at Screening and Time of Treatment Failure (Analysis at Week 48)
Scr: X4, Tx fail: DM
1 participants
1 participants
0 participants
Number of Subjects Per Tropism Status at Screening and Time of Treatment Failure (Analysis at Week 48)
Scr: DM, Tx fail: R5
1 participants
1 participants
5 participants
Number of Subjects Per Tropism Status at Screening and Time of Treatment Failure (Analysis at Week 48)
Scr: DM, Tx fail: X4
12 participants
12 participants
2 participants
Number of Subjects Per Tropism Status at Screening and Time of Treatment Failure (Analysis at Week 48)
Scr: DM, Tx fail: DM
24 participants
10 participants
18 participants
Number of Subjects Per Tropism Status at Screening and Time of Treatment Failure (Analysis at Week 48)
Scr: DM, Tx fail: NR/NP
0 participants
1 participants
1 participants
Number of Subjects Per Tropism Status at Screening and Time of Treatment Failure (Analysis at Week 48)
Scr: DM, Tx fail: BLQ
1 participants
0 participants
0 participants
Number of Subjects Per Tropism Status at Screening and Time of Treatment Failure (Analysis at Week 48)
Scr: NR/NP, Tx fail: NR/NP
0 participants
1 participants
0 participants

SECONDARY outcome

Timeframe: Screening, Week 24

Population: FAS - as treated dual-tropic subjects. Missing values imputed as LOCF.

Number of subjects for association between screening resistance and virologic response as determined by treatment failure and OSS at screening. OSS categorized as 0-1, 2-4, \>4 (maximum value of 6) and calculated as the sum of the net assessment of in vitro phenotypic and genotypic susceptibility using a binary scoring system (0= reduced susceptibility, 1=susceptible) for each antiretroviral agent in OBT. Higher scores indicate greater susceptibility.

Outcome measures

Outcome measures
Measure
Maraviroc QD
n=57 Participants
Maraviroc 150 mg by mouth (PO) once daily (QD) in combination with optimized background therapy (OBT) (3 to 6 drugs based on treatment history and resistance testing). The 150 mg QD arm = placebo drug in the morning and active drug in the evening.
Maraviroc BID
n=52 Participants
Maraviroc 150 mg PO twice a day (BID) in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The 150 mg BID arm = active drug in the morning and evening.
Placebo
n=58 Participants
Placebo BID in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The placebo arm = placebo drug in the morning and evening.
Number of Subjects With Treatment Failure at Week 24 by Overall Susceptibility Score (OSS) at Screening
Scr score: 0-1
21 participants
12 participants
17 participants
Number of Subjects With Treatment Failure at Week 24 by Overall Susceptibility Score (OSS) at Screening
Scr score: 2-4
35 participants
35 participants
40 participants
Number of Subjects With Treatment Failure at Week 24 by Overall Susceptibility Score (OSS) at Screening
Scr score: missing
1 participants
1 participants
1 participants

SECONDARY outcome

Timeframe: Screening, Week48

Population: FAS - as treated dual-tropic subjects. Missing values imputed as LOCF.

Number of subjects for association between screening resistance and virologic response as determined by treatment failure and OSS at screening. OSS categorized as 0, 1, 2, or ≥3 (maximum value of 6) and calculated as the sum of the net assessment of in vitro phenotypic and genotypic susceptibility using a binary scoring system (0= reduced susceptibility, 1=susceptible) for each antiretroviral agent in OBT. Higher scores indicate greater susceptibility.

Outcome measures

Outcome measures
Measure
Maraviroc QD
n=57 Participants
Maraviroc 150 mg by mouth (PO) once daily (QD) in combination with optimized background therapy (OBT) (3 to 6 drugs based on treatment history and resistance testing). The 150 mg QD arm = placebo drug in the morning and active drug in the evening.
Maraviroc BID
n=52 Participants
Maraviroc 150 mg PO twice a day (BID) in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The 150 mg BID arm = active drug in the morning and evening.
Placebo
n=58 Participants
Placebo BID in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The placebo arm = placebo drug in the morning and evening.
Number of Subjects With Treatment Failure at Week 48 by Overall Susceptibility Score (OSS) at Screening
Scr score: 0
1 particpants
2 particpants
2 particpants
Number of Subjects With Treatment Failure at Week 48 by Overall Susceptibility Score (OSS) at Screening
Scr score: 1
19 particpants
11 particpants
15 particpants
Number of Subjects With Treatment Failure at Week 48 by Overall Susceptibility Score (OSS) at Screening
Scr score: 2
21 particpants
14 particpants
13 particpants
Number of Subjects With Treatment Failure at Week 48 by Overall Susceptibility Score (OSS) at Screening
Scr score: ≥3
15 particpants
24 particpants
27 particpants
Number of Subjects With Treatment Failure at Week 48 by Overall Susceptibility Score (OSS) at Screening
Scr score: missing
1 particpants
1 particpants
1 particpants

SECONDARY outcome

Timeframe: Baseline through Week 24

Population: FAS - as randomized; N=number of subjects with Category C Adverse Events for maraviroc QD, maraviroc BID, and placebo, respectively. Week 48 results reflect subsequent updates to data originally reported at Week 24.

Number of subjects with AIDS-defining opportunistic illnesses based on investigator classification guided by a predefined list of clinical Category C Adverse Events per Center for Disease Control (CDC) HIV Classification System. Includes events occurring up to 7 days after last dose of study drug.

Outcome measures

Outcome measures
Measure
Maraviroc QD
n=63 Participants
Maraviroc 150 mg by mouth (PO) once daily (QD) in combination with optimized background therapy (OBT) (3 to 6 drugs based on treatment history and resistance testing). The 150 mg QD arm = placebo drug in the morning and active drug in the evening.
Maraviroc BID
n=61 Participants
Maraviroc 150 mg PO twice a day (BID) in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The 150 mg BID arm = active drug in the morning and evening.
Placebo
n=62 Participants
Placebo BID in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The placebo arm = placebo drug in the morning and evening.
Number of Subjects With Acquired Immunodeficiency Syndrome (AIDS)-Defining Opportunistic Illnesses (Analysis at Week 24)
Pneumonia
0 participants
0 participants
1 participants
Number of Subjects With Acquired Immunodeficiency Syndrome (AIDS)-Defining Opportunistic Illnesses (Analysis at Week 24)
Candidiasis
0 participants
0 participants
1 participants
Number of Subjects With Acquired Immunodeficiency Syndrome (AIDS)-Defining Opportunistic Illnesses (Analysis at Week 24)
Cytomegalovirus chorioretinitis
1 participants
0 participants
0 participants
Number of Subjects With Acquired Immunodeficiency Syndrome (AIDS)-Defining Opportunistic Illnesses (Analysis at Week 24)
Herpes simplex
1 participants
0 participants
0 participants
Number of Subjects With Acquired Immunodeficiency Syndrome (AIDS)-Defining Opportunistic Illnesses (Analysis at Week 24)
Histoplasmosis
1 participants
0 participants
0 participants
Number of Subjects With Acquired Immunodeficiency Syndrome (AIDS)-Defining Opportunistic Illnesses (Analysis at Week 24)
Mycobacterium avium complex infection
1 participants
0 participants
0 participants
Number of Subjects With Acquired Immunodeficiency Syndrome (AIDS)-Defining Opportunistic Illnesses (Analysis at Week 24)
Oesophageal candidiasis
0 participants
2 participants
0 participants
Number of Subjects With Acquired Immunodeficiency Syndrome (AIDS)-Defining Opportunistic Illnesses (Analysis at Week 24)
Encephalitis
0 participants
0 participants
1 participants
Number of Subjects With Acquired Immunodeficiency Syndrome (AIDS)-Defining Opportunistic Illnesses (Analysis at Week 24)
Pneumocystis jiroveci pneumonia
3 participants
1 participants
0 participants

SECONDARY outcome

Timeframe: Baseline through Week 48

Population: FAS - as randomized; N=number of subjects with Category C Adverse Events for maraviroc QD, maraviroc BID, and placebo, respectively. Week 48 results reflect subsequent updates to data originally reported at Week 24.

Number of subjects with AIDS-defining opportunistic illnesses based on investigator classification guided by a predefined list of clinical Category C Adverse Events per CDC HIV Classification System. Includes events occurring up to 7 days after last dose of study drug.

Outcome measures

Outcome measures
Measure
Maraviroc QD
n=63 Participants
Maraviroc 150 mg by mouth (PO) once daily (QD) in combination with optimized background therapy (OBT) (3 to 6 drugs based on treatment history and resistance testing). The 150 mg QD arm = placebo drug in the morning and active drug in the evening.
Maraviroc BID
n=61 Participants
Maraviroc 150 mg PO twice a day (BID) in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The 150 mg BID arm = active drug in the morning and evening.
Placebo
n=62 Participants
Placebo BID in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The placebo arm = placebo drug in the morning and evening.
Number of Subjects With Acquired Immunodeficiency Syndrome (AIDS)-Defining Opportunistic Illnesses (Analysis at Week 48)
Candidiasis
0 participants
1 participants
1 participants
Number of Subjects With Acquired Immunodeficiency Syndrome (AIDS)-Defining Opportunistic Illnesses (Analysis at Week 48)
Cytomegalovirus chorioretinitis
1 participants
0 participants
0 participants
Number of Subjects With Acquired Immunodeficiency Syndrome (AIDS)-Defining Opportunistic Illnesses (Analysis at Week 48)
Histoplasmosis
1 participants
0 participants
0 participants
Number of Subjects With Acquired Immunodeficiency Syndrome (AIDS)-Defining Opportunistic Illnesses (Analysis at Week 48)
Oesophageal candidiasis
0 participants
2 participants
0 participants
Number of Subjects With Acquired Immunodeficiency Syndrome (AIDS)-Defining Opportunistic Illnesses (Analysis at Week 48)
Pneumococcal Sepsis
0 participants
1 participants
0 participants
Number of Subjects With Acquired Immunodeficiency Syndrome (AIDS)-Defining Opportunistic Illnesses (Analysis at Week 48)
Pneumocystis jiroveci pneumonia
3 participants
0 participants
0 participants
Number of Subjects With Acquired Immunodeficiency Syndrome (AIDS)-Defining Opportunistic Illnesses (Analysis at Week 48)
Pneumonia
0 participants
1 participants
0 participants
Number of Subjects With Acquired Immunodeficiency Syndrome (AIDS)-Defining Opportunistic Illnesses (Analysis at Week 48)
Encephalitis
0 participants
0 participants
1 participants

Adverse Events

Maraviroc QD

Serious events: 13 serious events
Other events: 46 other events
Deaths: 0 deaths

Maraviroc BID

Serious events: 14 serious events
Other events: 51 other events
Deaths: 0 deaths

Placebo

Serious events: 13 serious events
Other events: 42 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Maraviroc QD
n=63 participants at risk
Maraviroc 150 mg by mouth (PO) once daily (QD) in combination with optimized background therapy (OBT) (3 to 6 drugs based on treatment history and resistance testing). The 150 mg QD arm = placebo drug in the morning and active drug in the evening.
Maraviroc BID
n=62 participants at risk
Maraviroc 150 mg PO twice a day (BID) in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The 150 mg BID arm = active drug in the morning and evening.
Placebo
n=61 participants at risk
Placebo BID in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The placebo arm = placebo drug in the morning and evening.
Blood and lymphatic system disorders
Anaemia
1.6%
1/63
0.00%
0/62
0.00%
0/61
Blood and lymphatic system disorders
Lymphadenitis
0.00%
0/63
1.6%
1/62
0.00%
0/61
Blood and lymphatic system disorders
Neutropenia
1.6%
1/63
0.00%
0/62
1.6%
1/61
Cardiac disorders
Myocardial infarction
0.00%
0/63
1.6%
1/62
0.00%
0/61
Gastrointestinal disorders
Ascites
0.00%
0/63
0.00%
0/62
1.6%
1/61
Gastrointestinal disorders
Diarrhoea
0.00%
0/63
1.6%
1/62
1.6%
1/61
Gastrointestinal disorders
Pancreatitis acute
1.6%
1/63
0.00%
0/62
0.00%
0/61
General disorders
Asthenia
0.00%
0/63
1.6%
1/62
1.6%
1/61
General disorders
Condition aggravated
0.00%
0/63
0.00%
0/62
1.6%
1/61
General disorders
Disease progression
0.00%
0/63
1.6%
1/62
0.00%
0/61
General disorders
Fatigue
0.00%
0/63
0.00%
0/62
1.6%
1/61
General disorders
Pyrexia
4.8%
3/63
1.6%
1/62
0.00%
0/61
Hepatobiliary disorders
Hepatitis
1.6%
1/63
0.00%
0/62
0.00%
0/61
Immune system disorders
Hypersensitivity
0.00%
0/63
1.6%
1/62
1.6%
1/61
Infections and infestations
Abscess
0.00%
0/63
0.00%
0/62
1.6%
1/61
Infections and infestations
Bronchitis bacterial
0.00%
0/63
0.00%
0/62
1.6%
1/61
Infections and infestations
Candidiasis
0.00%
0/63
0.00%
0/62
1.6%
1/61
Infections and infestations
Clostridial infection
0.00%
0/63
3.2%
2/62
0.00%
0/61
Infections and infestations
Ear infection
0.00%
0/63
1.6%
1/62
0.00%
0/61
Infections and infestations
Gastroenteritis viral
0.00%
0/63
1.6%
1/62
0.00%
0/61
Infections and infestations
Histoplasmosis
1.6%
1/63
0.00%
0/62
0.00%
0/61
Infections and infestations
Lobar pneumonia
0.00%
0/63
0.00%
0/62
1.6%
1/61
Infections and infestations
Meningitis aseptic
1.6%
1/63
0.00%
0/62
0.00%
0/61
Infections and infestations
Oesophageal candidiasis
0.00%
0/63
3.2%
2/62
0.00%
0/61
Infections and infestations
Pneumococcal sepsis
0.00%
0/63
1.6%
1/62
0.00%
0/61
Infections and infestations
Pneumocystis jiroveci pneumonia
4.8%
3/63
0.00%
0/62
0.00%
0/61
Infections and infestations
Pneumonia
4.8%
3/63
3.2%
2/62
1.6%
1/61
Infections and infestations
Pneumonia bacterial
1.6%
1/63
0.00%
0/62
0.00%
0/61
Infections and infestations
Staphylococcal abscess
0.00%
0/63
1.6%
1/62
0.00%
0/61
Infections and infestations
Staphylococcal bacteraemia
1.6%
1/63
0.00%
0/62
0.00%
0/61
Infections and infestations
Staphylococcal infection
0.00%
0/63
1.6%
1/62
1.6%
1/61
Infections and infestations
Subcutaneous abscess
0.00%
0/63
0.00%
0/62
1.6%
1/61
Infections and infestations
Urinary tract infection
0.00%
0/63
1.6%
1/62
0.00%
0/61
Injury, poisoning and procedural complications
Humerus fracture
0.00%
0/63
0.00%
0/62
1.6%
1/61
Metabolism and nutrition disorders
Anorexia
0.00%
0/63
0.00%
0/62
1.6%
1/61
Metabolism and nutrition disorders
Dehydration
0.00%
0/63
1.6%
1/62
1.6%
1/61
Metabolism and nutrition disorders
Diabetes mellitus
1.6%
1/63
0.00%
0/62
0.00%
0/61
Metabolism and nutrition disorders
Hypoglycaemia
1.6%
1/63
0.00%
0/62
0.00%
0/61
Musculoskeletal and connective tissue disorders
Pain in extremity
1.6%
1/63
0.00%
0/62
0.00%
0/61
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
B-cell lymphoma
0.00%
0/63
1.6%
1/62
0.00%
0/61
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Burkitt's lymphoma
1.6%
1/63
0.00%
0/62
0.00%
0/61
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Lung adenocarcinoma
1.6%
1/63
0.00%
0/62
0.00%
0/61
Nervous system disorders
Central nervous system lesion
0.00%
0/63
0.00%
0/62
1.6%
1/61
Nervous system disorders
Encephalitis
0.00%
0/63
0.00%
0/62
1.6%
1/61
Nervous system disorders
Movement disorder
1.6%
1/63
0.00%
0/62
0.00%
0/61
Pregnancy, puerperium and perinatal conditions
Abortion spontaneous
0.00%
0/63
0.00%
0/62
1.6%
1/61
Pregnancy, puerperium and perinatal conditions
Pregnancy
0.00%
0/63
0.00%
0/62
1.6%
1/61
Psychiatric disorders
Depression
0.00%
0/63
0.00%
0/62
3.3%
2/61
Psychiatric disorders
Suicidal ideation
0.00%
0/63
0.00%
0/62
1.6%
1/61
Renal and urinary disorders
Nephrolithiasis
1.6%
1/63
0.00%
0/62
0.00%
0/61
Respiratory, thoracic and mediastinal disorders
Cough
1.6%
1/63
0.00%
0/62
0.00%
0/61
Respiratory, thoracic and mediastinal disorders
Dyspnoea
1.6%
1/63
0.00%
0/62
0.00%
0/61
Respiratory, thoracic and mediastinal disorders
Haemothorax
0.00%
0/63
0.00%
0/62
1.6%
1/61
Respiratory, thoracic and mediastinal disorders
Pleural effusion
0.00%
0/63
0.00%
0/62
1.6%
1/61
Skin and subcutaneous tissue disorders
Rash
0.00%
0/63
1.6%
1/62
0.00%
0/61

Other adverse events

Other adverse events
Measure
Maraviroc QD
n=63 participants at risk
Maraviroc 150 mg by mouth (PO) once daily (QD) in combination with optimized background therapy (OBT) (3 to 6 drugs based on treatment history and resistance testing). The 150 mg QD arm = placebo drug in the morning and active drug in the evening.
Maraviroc BID
n=62 participants at risk
Maraviroc 150 mg PO twice a day (BID) in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The 150 mg BID arm = active drug in the morning and evening.
Placebo
n=61 participants at risk
Placebo BID in combination with OBT (3 to 6 drugs based on treatment history and resistance testing). The placebo arm = placebo drug in the morning and evening.
Blood and lymphatic system disorders
Anaemia
6.3%
4/63
0.00%
0/62
1.6%
1/61
Gastrointestinal disorders
Constipation
9.5%
6/63
8.1%
5/62
1.6%
1/61
Gastrointestinal disorders
Diarrhoea
28.6%
18/63
19.4%
12/62
21.3%
13/61
Gastrointestinal disorders
Nausea
14.3%
9/63
12.9%
8/62
19.7%
12/61
Gastrointestinal disorders
Vomiting
12.7%
8/63
4.8%
3/62
13.1%
8/61
General disorders
Asthenia
0.00%
0/63
3.2%
2/62
11.5%
7/61
General disorders
Fatigue
12.7%
8/63
16.1%
10/62
18.0%
11/61
General disorders
Injection site reaction
11.1%
7/63
21.0%
13/62
14.8%
9/61
General disorders
Pyrexia
7.9%
5/63
9.7%
6/62
6.6%
4/61
Infections and infestations
Bronchitis
6.3%
4/63
9.7%
6/62
3.3%
2/61
Infections and infestations
Herpes simplex
6.3%
4/63
6.5%
4/62
3.3%
2/61
Infections and infestations
Influenza
1.6%
1/63
6.5%
4/62
1.6%
1/61
Infections and infestations
Nasopharyngitis
7.9%
5/63
4.8%
3/62
4.9%
3/61
Infections and infestations
Oral candidiasis
1.6%
1/63
8.1%
5/62
0.00%
0/61
Infections and infestations
Pharyngitis
1.6%
1/63
8.1%
5/62
0.00%
0/61
Infections and infestations
Sinusitis
4.8%
3/63
9.7%
6/62
6.6%
4/61
Infections and infestations
Upper respiratory tract infection
7.9%
5/63
16.1%
10/62
8.2%
5/61
Investigations
Weight increased
6.3%
4/63
0.00%
0/62
0.00%
0/61
Musculoskeletal and connective tissue disorders
Arthralgia
4.8%
3/63
6.5%
4/62
1.6%
1/61
Musculoskeletal and connective tissue disorders
Back pain
7.9%
5/63
12.9%
8/62
3.3%
2/61
Musculoskeletal and connective tissue disorders
Pain in extremity
0.00%
0/63
9.7%
6/62
3.3%
2/61
Nervous system disorders
Dizziness
9.5%
6/63
9.7%
6/62
4.9%
3/61
Nervous system disorders
Headache
20.6%
13/63
17.7%
11/62
8.2%
5/61
Psychiatric disorders
Insomnia
7.9%
5/63
8.1%
5/62
4.9%
3/61
Respiratory, thoracic and mediastinal disorders
Cough
11.1%
7/63
9.7%
6/62
6.6%
4/61
Respiratory, thoracic and mediastinal disorders
Oropharyngeal pain
4.8%
3/63
6.5%
4/62
1.6%
1/61
Respiratory, thoracic and mediastinal disorders
Rhinorrhoea
0.00%
0/63
6.5%
4/62
0.00%
0/61
Skin and subcutaneous tissue disorders
Night sweats
6.3%
4/63
4.8%
3/62
1.6%
1/61
Skin and subcutaneous tissue disorders
Pruritus
3.2%
2/63
4.8%
3/62
8.2%
5/61
Skin and subcutaneous tissue disorders
Rash
11.1%
7/63
9.7%
6/62
11.5%
7/61

Additional Information

Pfizer ClinicalTrials.gov Call Center

Pfizer, Inc.

Phone: 1-800-718-1021

Results disclosure agreements

  • Principal investigator is a sponsor employee Pfizer has the right to review disclosures, requesting a delay of \< 60 days. Investigator will postpone single center publications until after disclosure of pooled data (all sites), \< 12 months from study completion/termination at all participating sites. Investigator may not disclose previously undisclosed confidential information other than study results.
  • Publication restrictions are in place

Restriction type: OTHER