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Randomized, Double-Blind, Placebo-Controlled Trial, Followed by Single-Arm Treatment of PRO 140

A Multi-center, Randomized, Double-blind, Placebo-controlled Trial, Followed by Single-arm Treatment of PRO 140 in Combination With Optimized Background Therapy in Treatment-Experienced HIV-1 Subjects

Status
Completed
Phases
Phase 2Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02483078
Acronym
PRO140
Enrollment
52
Registered
2015-06-26
Start date
2015-10-31
Completion date
2018-07-31
Last updated
2022-11-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

HIV

Brief summary

This is a Phase 2b/3, multi-center, two part study, designed to evaluate the efficacy, safety, and tolerability of PRO 140 in conjunction with existing ART (failing regimen) for one week and Optimized Background Therapy (OBT) for 24 weeks respectively. Study population includes treatment-experienced HIV-infected patients with CCR5-tropic virus who demonstrates evidence of HIV-1 replication despite ongoing antiretroviral therapy with documented genotypic or phenotypic resistance to ART drugs within three drug classes (or within two or more drug classes with limited treatment options).The options may be limited as a result of drug antiviral class cross-resistance or documented treatment intolerance.

Detailed description

PRO 140, in combination with other antiretroviral agents, is indicated for treatment experienced adult HIV-1 patients infected with CCR5-tropic virus. These patients must demonstrate evidence of HIV-1 replication despite ongoing antiretroviral therapy and have documented genotypic or phenotypic resistance to at least one ART drug within three drug classes (or within two or more drug classes with limited treatment option). The options may be limited as a result of drug antiviral class cross-resistance, documented treatment intolerance, documented objective assessments such as renal or hepatic insufficiency (e.g. high creatinine at baseline, limiting treatment options due to potential for toxicity), past adverse reactions such as hypersensitivity reactions or neuropsychiatric issues that could limit use of currently approved drugs. Study population includes treatment-experienced HIV-infected patients with CCR5-tropic virus who demonstrates evidence of HIV-1 replication despite ongoing antiretroviral therapy with documented genotypic or phenotypic resistance to ART drugs within three drug classes (or within two drug classes with limited treatment option). Enrollment will be stratified to have HIV-1 virus resistant to ART drugs within three drug classes or within two drug classes with limited treatment option. The primary objective is to assess the efficacy, clinical safety and tolerability parameters of PRO 140 compared to placebo in reducing HIV-1 viral load during the 1-week double-blind treatment period. The secondary objectives of the trial are to assess the efficacy, clinical safety and tolerability parameters of PRO 140 in combination with Optimized Background Therapy during the 24-week single-arm, open-label treatment period.

Interventions

PRO 140 is a humanized IgG4,κ monoclonal antibody (mAb) to the chemokine receptor CCR5.

DRUGPlacebo

Optimized background therapy (OBT) is chosen on the basis of a subject's resistance test results and treatment history.

Sponsors

CytoDyn, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Males and females, age ≥ 18 years 2. Exclusive CCR5-tropic virus at Screening Visit 3. Have a history of at least 3 months on current antiretroviral regimen 4. Treatment-experienced HIV-infected patients with documented genotypic or phenotypic resistance to at least one ART drug within three drug classes OR Treatment-experienced HIV-infected patients with documented genotypic or phenotypic resistance to at least one ART drug within two drug classes and have limited treatment options. The options may be limited as a result of drug antiretroviral class cross-resistance or documented treatment intolerance. 5. Be willing to remain on treatment without any changes or additions to the OBT regimen, except for toxicity management or upon meeting criteria for treatment failure. 6. Plasma HIV-1 RNA ≥ 400 copies/mL at Screening Visit and documented detectable viral load (HIV-1 RNA \>50 copies/ml) within the last 3 months prior to Screening Visit. 7. Laboratory values at Screening of: * Absolute neutrophil count (ANC) ≥ 750/mm3 * Hemoglobin (Hb) ≥ 10.5 gm/dL (male) or ≥ 9.5 gm/dL (female) * Platelets ≥ 75,000 /mm3 * Serum alanine transaminase (SGPT/ALT) \< 5 x upper limit of normal (ULN) * Serum aspartate transaminase (SGOT/AST) \< 5 x ULN * Bilirubin (total) \< 2.5 x ULN unless Gilbert's disease is present or subject is receiving atazanavir in the absence of other evidence of significant liver disease * Creatinine ≤ 1.5 x ULN 8. Clinically normal resting 12-lead ECG at Screening Visit or, if abnormal, considered not clinically significant by the Principal Investigator 9. Both male and female patients and their partners of childbearing potential must agree to use 2 medically accepted methods of contraception (e.g., barrier contraceptives \[male condom, female condom, or diaphragm with a spermicidal gel\], hormonal contraceptives \[implants, injectables, combination oral contraceptives, transdermal patches, or contraceptive rings\], and intrauterine devices) during the course of the study (excluding women who are not of childbearing potential and men who have been sterilized). Females of childbearing potential must have a negative serum pregnancy test at Screening visit and negative urine pregnancy test prior to receiving the first dose of study drug. 10. Willing and able to participate in all aspects of the study, including use of SC medication, completion of subjective evaluations, attendance at scheduled clinic visits, and compliance with all protocol requirements as evidenced by providing written informed consent. Note: Subjects diagnosed with either substance dependence or substance abuse or any history of a concomitant condition (e.g., medical, psychologic, or psychiatric) may be enrolled if in the opinion of site investigator these circumstances would not interfere with the subject's successful completion of the study requirements.

Exclusion criteria

1. Documented CXCR4-tropic virus or Dual/Mixed tropic (R5X4) virus 2. Patients with no viable treatment options (≤ 1 fully active drug) 3. Any active infection or malignancy requiring acute therapy (with the exception of local cutaneous Kaposi's sarcoma) Note: Subjects infected by the hepatitis B virus or early stage hepatitis C virus will be eligible for the study. 4. Laboratory test values of ≥ grade 3 DAIDS laboratory abnormality with the exception of the absolute CD4+ count criterion of \< 200/mm3 5. Females who are pregnant, lactating, or breastfeeding, or who plan to become pregnant during the study 6. Unexplained fever or clinically significant illness within 1 week prior to the first study dose 7. Any vaccination within 2 weeks prior to the first study dose. 8. Subjects weighing \< 35kg 9. History of anaphylaxis 10. History of Bleeding Disorder or patients on anti-coagulant therapy 11. Participation in an experimental drug trial(s) within 30 days of the Screening Visit or during the study 12. Any known allergy or antibodies to the study drug or excipients 13. Treatment with any of the following: * Radiation or cytotoxic chemotherapy with 30 days prior to the Screening Visit or during the study * Immunosuppressants within 60 days prior to the Screening Visit or during the study * Immunomodulating agents (e.g., interleukins, interferons), hydroxyurea, or foscarnet within 60 days prior to the Screening Visit or during the study * Oral or parenteral corticosteroids within 30 days prior to the Screening Visit or during the study. Subjects on chronic steroid therapy \> 5 mg/day will be excluded with the following exception: * Subjects on inhaled, nasal, or topical steroids will not be excluded. 14. Any other clinical condition that, in the Investigator's judgment, would potentially compromise study compliance or the ability to evaluate safety/efficacy

Design outcomes

Primary

MeasureTime frameDescription
Proportion of Participants With ≥ 0.5 log10 Reduction in HIV-1 RNA Viral Load From Baseline at the End of the 1-week Double-blind Treatment PeriodFrom baseline visit to week 1 visitThe primary efficacy endpoint will be proportion of participants with a 0.5 log10 or greater reduction in HIV-1 RNA viral load from baseline at the end of the one week double-blind treatment period (Part 1).

Secondary

MeasureTime frameDescription
Percentage of Participants Achieving HIV-1 RNA < 400 Copies/mL at Week 25 for All Patients and Within Each Stratum25 weeksThe number and percentages of subjects achieving HIV-1 RNA \< 400 copies/mL at Week 25, from the open label portion of the study, are presented
Mean Change From Baseline in HIV-1 RNA Levels (log10 Copies/mL) at Week 25 for All Patients and Within Each Stratum25 weeksThe raw and change from baseline in HIV-1 RNA levels (log10 copies/mL) at Week 25 was to be summarized for each week during the treatment phase. For change from baseline summaries, subjects with an undefined change from baseline, because of missing data, were to be excluded.
Mean Change From Baseline in CD4 Cell Count at the End of the 1-week Double-blind Treatment Period for All Patients and Within Each StratumFrom baseline visit to week 1 visitThe raw and change from baseline in CD4 cell count at the end of the 1-week double blind treatment period was to be summarized by treatment group for the first week during the double-blind treatment phase. For change from baseline summaries, subjects with an undefined change from baseline, because of missing data, were to be excluded.
Mean Change From Baseline in CD4 Cell Count at Week 25 for All Patients and Within Each Stratum25 weeksThe raw and change from baseline in CD4 cell count at Week 25 was to be summarized for each week during the treatment phase. For change from baseline summaries, subjects with an undefined change from baseline, because of missing data, were to be excluded.
Proportion of Participants With ≥ 1 log10 Reduction in HIV-1 RNA Viral Load From Baseline at the End of the 1-week Double-blind Treatment Period for All Patients and Within Each StratumFrom baseline visit to week 1 visitThe number and percentage of subjects with a ≥ 1log10 or greater reduction in HIV-1 RNA viral load from baseline was to be presented for the two (2) treatment groups. The analysis of change in viral load was done for subjects with ≥ 1.0 log10 reduction in HIV-1 RNA after the first week of treatment. The analysis is presented for the ITT population
Proportion of Participants With ≥ 0.5 log10 Reduction in HIV-1 RNA Viral Load From Baseline at the End of the 1-week Double-blind Treatment Period, Stratified to Each Group: Resistance to ART Drugs Within Two Drug Class With Limited Treatment Option.From baseline visit to week 1 visitProportion of participants with ≥ 0.5 log10 reduction in HIV-1 RNA viral load from baseline at the end of the 1-week double-blind treatment period, stratified to each group: a. resistance to ART drugs within two drug class with limited treatment option (N = 24). This outcome measures the proportion of participants that are classified as having a resistance to ART drugs within two drug classes and with limited treatment options with ≥ 0.5 log10 reduction in HIV-1 RNA viral load from baseline at the end of the 1-week double-blind treatment period . The total number of participants in the study ITT population, 52, is further stratified into two subgroups: 1. Participants with resistance to ART Drugs Within Two Drug Class With Limited Treatment Option (N = 24) 2. Participants with resistance to ART Drugs Within Three Drug Classes (N = 28) This measure includes only the 24 participants with Resistance to ART Drugs Within Two Drug Class With Limited Treatment Options
Proportion of Participants With ≥ 0.5 log10 Reduction in HIV-1 RNA Viral Load From Baseline at the End of the 1-week Double-blind Treatment Period, Stratified to Each Group: Resistance to ART Drugs Within Three Drug ClassesFrom baseline visit to week 1 visitProportion of participants with ≥ 0.5 log10 reduction in HIV-1 RNA viral load from baseline at the end of the 1-week double-blind treatment period, stratified to each group: a. Resistance to ART drugs within three drug classes (N = 28) This outcome measures the proportion of participants that are classified as having a resistance to ART drugs within two drug classes and with limited treatment options with ≥ 0.5 log10 reduction in HIV-1 RNA viral load from baseline at the end of the 1-week double-blind treatment period . The total number of participants in the study ITT population, 52, is further stratified into two subgroups as follows: 1. Participants with Resistance to ART Drugs Within Two Drug Class With Limited Treatment Option (N = 24) 2. Participants with resistance to ART Drugs Within Three Drug Classes (N = 28) This measure includes only the 28 participants with resistance to ART drugs within three drug classes
Mean Change From Baseline in HIV-1 RNA Levels (log10 Copies/mL) at the End of the 1-week Double-blind Treatment Period for All Patients and Within Each StratumFrom baseline visit to week 1 visitThe raw and change from baseline in HIV-1 RNA levels (log10 copies/mL) at the end of the 1-week double-blind treatment period was to be summarized by treatment group for the first week during the double-blind treatment phase. For change from baseline summaries, subjects with an undefined change from baseline, because of missing data, were to be excluded. The change from baseline in HIV-1 RNA levels was to be compared between the two (2) groups using Analysis of covariance (ANCOVA) with the stratification factor (i.e., Resistance to ART drugs at the time of randomization) included in the model.
Percentage and Number of Participants Achieving HIV-1 RNA < 50 Copies/mL at Week 25 for All Patients and Within Each Stratum25 weeksThe number and percentages of subjects achieving HIV-1 RNA \< 50 copies/mL at Week 25 are presented. This is from the 24 week open label portion of the of the trial.

Other

MeasureTime frameDescription
Frequency of Treatment-Emergent Serious Adverse Events25 weeksThe incidence of serious adverse events (SAEs) by relationship to the study treatment. In total, there were 16 SAEs reported for eight (8) subjects (15.4%, 8/52). Thirteen of the SAEs were determined to be Unrelated, three were determined to be Unlikely Related to study treatment.
Emergence of Dual/Mixed (D/M)- and CXCR4-tropic Virus in Patients Who Had Exclusive CCR5-tropic Virus at Study Entry.25 weeksThe number of study participants who had exclusive CCR5-tropic virus at study entry and subsequently developed Dual/Mixed (D/M)- and CXCR4-tropic virus at any time during study treatment while receiving PRO 140.
Frequency of Grade 3 or 4 Adverse Events as Defined by the DAIDS Adverse Event Scale25 weeksThe investigator was to carefully evaluate the comments of each subject and the response to treatment in order to judge the true nature and severity of the AE. The question of the relationship of AEs to study drug should have been determined by the investigator after thorough consideration of all available facts. To assess severity, the investigator was to use the DAIDS AE grading table for adverse events as well as any injection site reactions.
Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site Reactions25 weeksAssessments of subject-perceived injection site pain using the Pain Visual Analog Scale (VAS) were performed during each visit to the clinic for a study visit. Beginning at Treatment Visit 2 (T2), subjects were asked to mark the point that best represents the average pain intensity over the past week at the injection site on a horizontal line (100 mm in length) anchored by the following word descriptors at each end, no pain on the left side and pain as bad as it could possibly be on the right side of the line. The subject marks on the line or by pointing to a position on the line the point that they feel represents their perception of their pain state. The VAS score is determined by measuring in millimeters from the left-hand end of the line to the point that the patient marks The scale range is 0mm to 100 mm, with 0 mm = No Pain and 100 mm = Pain as bad as it could possibly be. In this measurement, a lower number corresponds to less perceived pain. T# = Visit Week#

Countries

Puerto Rico, United States

Participant flow

Recruitment details

Participants were enrolled from U.S. sites only. The first participant was enrolled on 21 October 2015 and the last subject completed the study on 25 July 2018.

Pre-assignment details

365 participants were screened.

Participants by arm

ArmCount
PRO 140
PRO140 350mg weekly SC Inj. + existing ART for one week. After one week, all subjects will enter the 24-week single-arm, open-label treatment period. During this period, all subjects will receive PRO 140 SC injection and Optimized Background Therapy. PRO 140: PRO 140 is a humanized IgG4,κ monoclonal antibody (mAb) to the chemokine receptor CCR5. Optimized Background Regimen: Optimized background therapy (OBT) is chosen on the basis of a subject's resistance test results and treatment history.
25
Placebo
Placebo weekly SC Inj. + existing ART for one week. After one week, all subjects will enter the 24-week single-arm, open-label treatment period. During this period, all subjects will receive PRO 140 SC injection and Optimized Background Therapy. Placebo Optimized Background Regimen: Optimized background therapy (OBT) is chosen on the basis of a subject's resistance test results and treatment history.
27
Total52

Withdrawals & dropouts

PeriodReasonFG000FG001
Part 1 One-week RandomizedLost to Follow-up01
Part 2 Open Label Treatment PeriodAdverse Event01
Part 2 Open Label Treatment PeriodLost to Follow-up01
Part 2 Open Label Treatment PeriodNon-medical01
Part 2 Open Label Treatment PeriodSubject non compliant01
Part 2 Open Label Treatment PeriodWithdrawal by Subject01

Baseline characteristics

CharacteristicTotalPlaceboPRO 140
Age, Continuous52.4 years
STANDARD_DEVIATION 7.6
52.4 years
STANDARD_DEVIATION 6.7
52.4 years
STANDARD_DEVIATION 8.6
Lowest CD4+ Cell Count
200-500 cells/mm^3
27 Participants14 Participants13 Participants
Lowest CD4+ Cell Count
<200 cells/mm^3
22 Participants12 Participants10 Participants
Lowest CD4+ Cell Count
>500 cells/mm^3
3 Participants1 Participants2 Participants
Number of ART Drug Exposure Prior to Enrollment10.7 Number of ART Drugs prior to enrolment
STANDARD_DEVIATION 4.6
9.6 Number of ART Drugs prior to enrolment
STANDARD_DEVIATION 4.2
11.8 Number of ART Drugs prior to enrolment
STANDARD_DEVIATION 4.8
Number of ART Drug with Documented Resistance9.1 Number of ART drugs with resistance
STANDARD_DEVIATION 4.6
8.8 Number of ART drugs with resistance
STANDARD_DEVIATION 3.3
9.4 Number of ART drugs with resistance
STANDARD_DEVIATION 5.8
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
1 Participants1 Participants0 Participants
Race (NIH/OMB)
Black or African American
24 Participants13 Participants11 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
27 Participants13 Participants14 Participants
Region of Enrollment
United States
52 participants27 participants25 participants
Sex: Female, Male
Female
14 Participants6 Participants8 Participants
Sex: Female, Male
Male
38 Participants21 Participants17 Participants
Time since HIV Diagnosis20.4 years
STANDARD_DEVIATION 9.4
20.8 years
STANDARD_DEVIATION 9.4
20.0 years
STANDARD_DEVIATION 9.5

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 250 / 270 / 52
other
Total, other adverse events
2 / 252 / 2734 / 52
serious
Total, serious adverse events
0 / 250 / 278 / 52

Outcome results

Primary

Proportion of Participants With ≥ 0.5 log10 Reduction in HIV-1 RNA Viral Load From Baseline at the End of the 1-week Double-blind Treatment Period

The primary efficacy endpoint will be proportion of participants with a 0.5 log10 or greater reduction in HIV-1 RNA viral load from baseline at the end of the one week double-blind treatment period (Part 1).

Time frame: From baseline visit to week 1 visit

Population: The primary population used for this analysis was the ITT population, defined as subjects who were randomized and had received at least one (1) dose of leronlimab (PRO 140) or placebo

ArmMeasureGroupValue (NUMBER)
PRO 140Proportion of Participants With ≥ 0.5 log10 Reduction in HIV-1 RNA Viral Load From Baseline at the End of the 1-week Double-blind Treatment PeriodWith >= 0.5 LOG10 IN HIV-1 RNA VIRAL Load Change from Baseline.64 Proportion of subjects
PRO 140Proportion of Participants With ≥ 0.5 log10 Reduction in HIV-1 RNA Viral Load From Baseline at the End of the 1-week Double-blind Treatment PeriodWithout >= 0.5 LOG10 IN HIV-1 RNA VIRAL Load Change from Baseline.36 Proportion of subjects
PlaceboProportion of Participants With ≥ 0.5 log10 Reduction in HIV-1 RNA Viral Load From Baseline at the End of the 1-week Double-blind Treatment PeriodWith >= 0.5 LOG10 IN HIV-1 RNA VIRAL Load Change from Baseline.23 Proportion of subjects
PlaceboProportion of Participants With ≥ 0.5 log10 Reduction in HIV-1 RNA Viral Load From Baseline at the End of the 1-week Double-blind Treatment PeriodWithout >= 0.5 LOG10 IN HIV-1 RNA VIRAL Load Change from Baseline.77 Proportion of subjects
p-value: 0.0032Fisher Exact
Secondary

Mean Change From Baseline in CD4 Cell Count at the End of the 1-week Double-blind Treatment Period for All Patients and Within Each Stratum

The raw and change from baseline in CD4 cell count at the end of the 1-week double blind treatment period was to be summarized by treatment group for the first week during the double-blind treatment phase. For change from baseline summaries, subjects with an undefined change from baseline, because of missing data, were to be excluded.

Time frame: From baseline visit to week 1 visit

Population: The Intent-to-Treat (ITT) population was defined as the set of subjects who were randomized and received at least one (1) dose of leronlimab (PRO 140) or placebo

ArmMeasureValue (MEAN)Dispersion
PRO 140Mean Change From Baseline in CD4 Cell Count at the End of the 1-week Double-blind Treatment Period for All Patients and Within Each Stratum41.1 CD4 Cell CountStandard Deviation 154
PlaceboMean Change From Baseline in CD4 Cell Count at the End of the 1-week Double-blind Treatment Period for All Patients and Within Each Stratum25 CD4 Cell CountStandard Deviation 131
Comparison: The raw and change from baseline in CD4 cell count at the end of the 1-week double blind treatment period was to be summarized by treatment group for the first week during the double-blind treatment phase. For change from baseline summaries, subjects with an undefined change from baseline, because of missing data, were to be excluded.p-value: 0.7123ANCOVA
Secondary

Mean Change From Baseline in CD4 Cell Count at Week 25 for All Patients and Within Each Stratum

The raw and change from baseline in CD4 cell count at Week 25 was to be summarized for each week during the treatment phase. For change from baseline summaries, subjects with an undefined change from baseline, because of missing data, were to be excluded.

Time frame: 25 weeks

Population: The Intent-to-Treat (ITT) population was defined as the set of subjects who were randomized and received at least one (1) dose of leronlimab (PRO 140) or placebo.

ArmMeasureValue (MEAN)Dispersion
PRO 140Mean Change From Baseline in CD4 Cell Count at Week 25 for All Patients and Within Each Stratum85.9 CD4 Cell CountStandard Deviation 175.2
Secondary

Mean Change From Baseline in HIV-1 RNA Levels (log10 Copies/mL) at the End of the 1-week Double-blind Treatment Period for All Patients and Within Each Stratum

The raw and change from baseline in HIV-1 RNA levels (log10 copies/mL) at the end of the 1-week double-blind treatment period was to be summarized by treatment group for the first week during the double-blind treatment phase. For change from baseline summaries, subjects with an undefined change from baseline, because of missing data, were to be excluded. The change from baseline in HIV-1 RNA levels was to be compared between the two (2) groups using Analysis of covariance (ANCOVA) with the stratification factor (i.e., Resistance to ART drugs at the time of randomization) included in the model.

Time frame: From baseline visit to week 1 visit

Population: Intent-to-Treat: The Intent-to-Treat (ITT) population was defined as the set of subjects who were randomized and had received at least one (1) dose of leronlimab (PRO 140) or placebo. This population was to be used as the primary analysis population for the primary and secondary endpoints.

ArmMeasureValue (MEAN)Dispersion
PRO 140Mean Change From Baseline in HIV-1 RNA Levels (log10 Copies/mL) at the End of the 1-week Double-blind Treatment Period for All Patients and Within Each Stratum0.6 Log10 Copies/mLStandard Deviation 0.45
PlaceboMean Change From Baseline in HIV-1 RNA Levels (log10 Copies/mL) at the End of the 1-week Double-blind Treatment Period for All Patients and Within Each Stratum0.1 Log10 Copies/mLStandard Deviation 0.51
p-value: 0.0013ANCOVA
Secondary

Mean Change From Baseline in HIV-1 RNA Levels (log10 Copies/mL) at Week 25 for All Patients and Within Each Stratum

The raw and change from baseline in HIV-1 RNA levels (log10 copies/mL) at Week 25 was to be summarized for each week during the treatment phase. For change from baseline summaries, subjects with an undefined change from baseline, because of missing data, were to be excluded.

Time frame: 25 weeks

Population: The Intent-to-Treat (ITT) population was defined as the set of subjects who were randomized and received at least one (1) dose of leronlimab (PRO 140) or placebo

ArmMeasureValue (MEAN)Dispersion
PRO 140Mean Change From Baseline in HIV-1 RNA Levels (log10 Copies/mL) at Week 25 for All Patients and Within Each Stratum2.4 Log10 copies/mLStandard Deviation 1.42
Secondary

Percentage and Number of Participants Achieving HIV-1 RNA < 50 Copies/mL at Week 25 for All Patients and Within Each Stratum

The number and percentages of subjects achieving HIV-1 RNA \< 50 copies/mL at Week 25 are presented. This is from the 24 week open label portion of the of the trial.

Time frame: 25 weeks

Population: The Intent-to-Treat (ITT) population was defined as the set of subjects who were randomized and received at least one (1) dose of leronlimab (PRO 140) or placebo

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
PRO 140Percentage and Number of Participants Achieving HIV-1 RNA < 50 Copies/mL at Week 25 for All Patients and Within Each StratumWith HIV-1 RNA < 50 Copies/mL at Week 2532 Participants
PRO 140Percentage and Number of Participants Achieving HIV-1 RNA < 50 Copies/mL at Week 25 for All Patients and Within Each StratumWithout HIV-1 RNA < 50 Copies/mL at Week 258 Participants
PRO 140Percentage and Number of Participants Achieving HIV-1 RNA < 50 Copies/mL at Week 25 for All Patients and Within Each StratumMissing12 Participants
Secondary

Percentage of Participants Achieving HIV-1 RNA < 400 Copies/mL at Week 25 for All Patients and Within Each Stratum

The number and percentages of subjects achieving HIV-1 RNA \< 400 copies/mL at Week 25, from the open label portion of the study, are presented

Time frame: 25 weeks

Population: The Intent-to-Treat (ITT) population was defined as the set of subjects who were randomized and received at least one (1) dose of leronlimab (PRO 140) or placebo

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
PRO 140Percentage of Participants Achieving HIV-1 RNA < 400 Copies/mL at Week 25 for All Patients and Within Each StratumWith HIV-1 RNA < 400 Copies/mL at Week 2537 Participants
PRO 140Percentage of Participants Achieving HIV-1 RNA < 400 Copies/mL at Week 25 for All Patients and Within Each StratumWithout HIV-1 RNA < 400 Copies/mL at Week 253 Participants
PRO 140Percentage of Participants Achieving HIV-1 RNA < 400 Copies/mL at Week 25 for All Patients and Within Each StratumMissing12 Participants
Secondary

Proportion of Participants With ≥ 0.5 log10 Reduction in HIV-1 RNA Viral Load From Baseline at the End of the 1-week Double-blind Treatment Period, Stratified to Each Group: Resistance to ART Drugs Within Three Drug Classes

Proportion of participants with ≥ 0.5 log10 reduction in HIV-1 RNA viral load from baseline at the end of the 1-week double-blind treatment period, stratified to each group: a. Resistance to ART drugs within three drug classes (N = 28) This outcome measures the proportion of participants that are classified as having a resistance to ART drugs within two drug classes and with limited treatment options with ≥ 0.5 log10 reduction in HIV-1 RNA viral load from baseline at the end of the 1-week double-blind treatment period . The total number of participants in the study ITT population, 52, is further stratified into two subgroups as follows: 1. Participants with Resistance to ART Drugs Within Two Drug Class With Limited Treatment Option (N = 24) 2. Participants with resistance to ART Drugs Within Three Drug Classes (N = 28) This measure includes only the 28 participants with resistance to ART drugs within three drug classes

Time frame: From baseline visit to week 1 visit

Population: The total number of participants in the study ITT population, 52, is further stratified into two subgroups as follows:~1. Participants with resistance to ART Drugs Within Two Drug Class With Limited Treatment Options (N = 24)~2. Participants with resistance to ART Drugs Within Three Drug Classes (N = 28)~This measure includes only the 28 participants with resistance to ART drugs within three drug classes

ArmMeasureValue (NUMBER)
PRO 140Proportion of Participants With ≥ 0.5 log10 Reduction in HIV-1 RNA Viral Load From Baseline at the End of the 1-week Double-blind Treatment Period, Stratified to Each Group: Resistance to ART Drugs Within Three Drug Classes.5714 Proportion of participants
PlaceboProportion of Participants With ≥ 0.5 log10 Reduction in HIV-1 RNA Viral Load From Baseline at the End of the 1-week Double-blind Treatment Period, Stratified to Each Group: Resistance to ART Drugs Within Three Drug Classes.2308 Proportion of participants
p-value: 0.1201Fisher Exact
Secondary

Proportion of Participants With ≥ 0.5 log10 Reduction in HIV-1 RNA Viral Load From Baseline at the End of the 1-week Double-blind Treatment Period, Stratified to Each Group: Resistance to ART Drugs Within Two Drug Class With Limited Treatment Option.

Proportion of participants with ≥ 0.5 log10 reduction in HIV-1 RNA viral load from baseline at the end of the 1-week double-blind treatment period, stratified to each group: a. resistance to ART drugs within two drug class with limited treatment option (N = 24). This outcome measures the proportion of participants that are classified as having a resistance to ART drugs within two drug classes and with limited treatment options with ≥ 0.5 log10 reduction in HIV-1 RNA viral load from baseline at the end of the 1-week double-blind treatment period . The total number of participants in the study ITT population, 52, is further stratified into two subgroups: 1. Participants with resistance to ART Drugs Within Two Drug Class With Limited Treatment Option (N = 24) 2. Participants with resistance to ART Drugs Within Three Drug Classes (N = 28) This measure includes only the 24 participants with Resistance to ART Drugs Within Two Drug Class With Limited Treatment Options

Time frame: From baseline visit to week 1 visit

Population: The total number of participants in the study ITT population, 52, is further stratified into two subgroups as follows:~1. Participants with Resistance to ART Drugs Within Two Drug Class With Limited Treatment Option (N = 24)~2. Participants with resistance to ART Drugs Within Three Drug Classes (N = 28)~This measure includes only the 24 participants with Resistance to ART Drugs Within Two Drug Class With Limited Treatment Option

ArmMeasureValue (NUMBER)
PRO 140Proportion of Participants With ≥ 0.5 log10 Reduction in HIV-1 RNA Viral Load From Baseline at the End of the 1-week Double-blind Treatment Period, Stratified to Each Group: Resistance to ART Drugs Within Two Drug Class With Limited Treatment Option..7273 Proportion of participants
PlaceboProportion of Participants With ≥ 0.5 log10 Reduction in HIV-1 RNA Viral Load From Baseline at the End of the 1-week Double-blind Treatment Period, Stratified to Each Group: Resistance to ART Drugs Within Two Drug Class With Limited Treatment Option..2308 Proportion of participants
p-value: 0.0377Fisher Exact
Secondary

Proportion of Participants With ≥ 1 log10 Reduction in HIV-1 RNA Viral Load From Baseline at the End of the 1-week Double-blind Treatment Period for All Patients and Within Each Stratum

The number and percentage of subjects with a ≥ 1log10 or greater reduction in HIV-1 RNA viral load from baseline was to be presented for the two (2) treatment groups. The analysis of change in viral load was done for subjects with ≥ 1.0 log10 reduction in HIV-1 RNA after the first week of treatment. The analysis is presented for the ITT population

Time frame: From baseline visit to week 1 visit

Population: The Intent-to-Treat (ITT) population was defined as the set of subjects who were randomized and received at least one (1) dose of leronlimab (PRO 140) or placebo

ArmMeasureValue (NUMBER)
PRO 140Proportion of Participants With ≥ 1 log10 Reduction in HIV-1 RNA Viral Load From Baseline at the End of the 1-week Double-blind Treatment Period for All Patients and Within Each Stratum.2 Proportion of participants
PlaceboProportion of Participants With ≥ 1 log10 Reduction in HIV-1 RNA Viral Load From Baseline at the End of the 1-week Double-blind Treatment Period for All Patients and Within Each Stratum.0385 Proportion of participants
p-value: 0.0993Fisher Exact
Other Pre-specified

Emergence of Dual/Mixed (D/M)- and CXCR4-tropic Virus in Patients Who Had Exclusive CCR5-tropic Virus at Study Entry.

The number of study participants who had exclusive CCR5-tropic virus at study entry and subsequently developed Dual/Mixed (D/M)- and CXCR4-tropic virus at any time during study treatment while receiving PRO 140.

Time frame: 25 weeks

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
PRO 140Emergence of Dual/Mixed (D/M)- and CXCR4-tropic Virus in Patients Who Had Exclusive CCR5-tropic Virus at Study Entry.2 Participants
Other Pre-specified

Frequency of Grade 3 or 4 Adverse Events as Defined by the DAIDS Adverse Event Scale

The investigator was to carefully evaluate the comments of each subject and the response to treatment in order to judge the true nature and severity of the AE. The question of the relationship of AEs to study drug should have been determined by the investigator after thorough consideration of all available facts. To assess severity, the investigator was to use the DAIDS AE grading table for adverse events as well as any injection site reactions.

Time frame: 25 weeks

Population: The Safety population was defined as all subjects who received at least one (1) dose of leronlimab (PRO 140) or placebo after randomization. This population was used for the analysis of safety parameters.

ArmMeasureGroupValue (NUMBER)
PRO 140Frequency of Grade 3 or 4 Adverse Events as Defined by the DAIDS Adverse Event ScaleModerate AEs40 Number of Adverse Events
PRO 140Frequency of Grade 3 or 4 Adverse Events as Defined by the DAIDS Adverse Event ScaleSevere AEs15 Number of Adverse Events
Other Pre-specified

Frequency of Treatment-Emergent Serious Adverse Events

The incidence of serious adverse events (SAEs) by relationship to the study treatment. In total, there were 16 SAEs reported for eight (8) subjects (15.4%, 8/52). Thirteen of the SAEs were determined to be Unrelated, three were determined to be Unlikely Related to study treatment.

Time frame: 25 weeks

ArmMeasureGroupValue (NUMBER)
PRO 140Frequency of Treatment-Emergent Serious Adverse EventsUnrelated13 Number of Serious Adverse Events
PRO 140Frequency of Treatment-Emergent Serious Adverse EventsUnlikely Related3 Number of Serious Adverse Events
Other Pre-specified

Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site Reactions

Assessments of subject-perceived injection site pain using the Pain Visual Analog Scale (VAS) were performed during each visit to the clinic for a study visit. Beginning at Treatment Visit 2 (T2), subjects were asked to mark the point that best represents the average pain intensity over the past week at the injection site on a horizontal line (100 mm in length) anchored by the following word descriptors at each end, no pain on the left side and pain as bad as it could possibly be on the right side of the line. The subject marks on the line or by pointing to a position on the line the point that they feel represents their perception of their pain state. The VAS score is determined by measuring in millimeters from the left-hand end of the line to the point that the patient marks The scale range is 0mm to 100 mm, with 0 mm = No Pain and 100 mm = Pain as bad as it could possibly be. In this measurement, a lower number corresponds to less perceived pain. T# = Visit Week#

Time frame: 25 weeks

Population: Assessments of subject-perceived injection site pain using the Pain Visual Analog Scale (VAS) was performed during each visit to the clinic for a study visit. The number of study participant visits varied each week and N = the number that visited the clinic and were assessed each week.

ArmMeasureGroupValue (MEAN)Dispersion
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT2 (Week 2) Left Side Injection Site1.3 Units on a scaleStandard Deviation 8.5
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT3 (Week 3) Left Side Injection Site0.3 Units on a scaleStandard Deviation 1.5
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT3 (Week 3) Right Side Injection Site0.2 Units on a scaleStandard Deviation 0.7
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT5 (Week 5) Left Side Injection Site.7 Units on a scaleStandard Deviation 4
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT11 (Week 11) Left Side Injection Site.3 Units on a scaleStandard Deviation 1.1
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT11 (Week 11) Right Side Injection Site.2 Units on a scaleStandard Deviation 1
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT14 (Week 14) Left Side Injection Site.4 Units on a scaleStandard Deviation 1.7
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT19 (Week 19) Left Side Injection Site.3 Units on a scaleStandard Deviation 1.3
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT19 (Week 19) Right Side Injection Site.2 Units on a scaleStandard Deviation 1.3
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT20 (Week 20) Right Side Injection Site1.1 Units on a scaleStandard Deviation 6
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT2 (Week 2) Right Side Injection Site1.0 Units on a scaleStandard Deviation 7.1
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT4 (Week 4) Left Side Injection Site0.4 Units on a scaleStandard Deviation 1.7
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT4 (Week 4) Right Side Injection Site0.3 Units on a scaleStandard Deviation 1.1
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT5 (Week 5) Right Side Injection Site.1 Units on a scaleStandard Deviation 0.6
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT6 (Week 6) Left Side Injection Site.8 Units on a scaleStandard Deviation 4.8
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT6 (Week 6) Right Side Injection Site.3 Units on a scaleStandard Deviation 1.7
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT7 (Week 7) Left Side Injection Site.2 Units on a scaleStandard Deviation 0.9
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT7 (Week 7) Right Side Injection Site.3 Units on a scaleStandard Deviation 1.7
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT8 (Week 8) Left Side Injection Site.3 Units on a scaleStandard Deviation 1.3
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT8 (Week 8) Right Side Injection Site.4 Units on a scaleStandard Deviation 1.5
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT9 (Week 9) Left Side Injection Site.2 Units on a scaleStandard Deviation 0.8
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT9 (Week 9) Right Side Injection Site.2 Units on a scaleStandard Deviation 0.9
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT10 (Week 10) Left Side Injection Site.3 Units on a scaleStandard Deviation 1.1
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT10 (Week 10) Right Side Injection Site.3 Units on a scaleStandard Deviation 1.1
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT12 (Week 12) Left Side Injection Site.9 Units on a scaleStandard Deviation 3
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT12 (Week 12) Right Side Injection Site.8 Units on a scaleStandard Deviation 2.7
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT13 (Week 13) Left Side Injection Site.1 Units on a scaleStandard Deviation 0.9
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT13 (Week 13) Right Side Injection Site.1 Units on a scaleStandard Deviation 0.9
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT14 (Week 14) Right Side Injection Site.4 Units on a scaleStandard Deviation 1.8
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT15 (Week 15) Left Side Injection Site.1 Units on a scaleStandard Deviation 0.6
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT15 (Week 15) Right Side Injection Site.2 Units on a scaleStandard Deviation 0.9
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT16 (Week 16) Left Side Injection Site.4 Units on a scaleStandard Deviation 1.6
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT16 (Week 16) Right Side Injection Site.2 Units on a scaleStandard Deviation 0.8
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT17 (Week 17) Left Side Injection Site.1 Units on a scaleStandard Deviation 0.4
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT17 (Week 17) Right Side Injection Site.1 Units on a scaleStandard Deviation 0.4
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT18 (Week 18) Left Side Injection Site.2 Units on a scaleStandard Deviation 1.2
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT18 (Week 18) Right Side Injection Site.3 Units on a scaleStandard Deviation 1.5
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT20 (Week 20) Left Side Injection Site1.5 Units on a scaleStandard Deviation 8.9
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT21 (Week 21) Left Side Injection Site.8 Units on a scaleStandard Deviation 4.5
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT21 (Week 21) Right Side Injection Site.4 Units on a scaleStandard Deviation 1.8
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT22 (Week 22) Left Side Injection Site.2 Units on a scaleStandard Deviation 0.9
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT22 (Week 22) Right Side Injection Site.2 Units on a scaleStandard Deviation 0.8
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT23 (Week 23) Left Side Injection Site.3 Units on a scaleStandard Deviation 1.7
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT23 (Week 23) Right Side Injection Site.2 Units on a scaleStandard Deviation 0.9
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT24 (Week 24) Left Side Injection Site.2 Units on a scaleStandard Deviation 1.4
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT24 (Week 24) Right Side Injection Site0 Units on a scaleStandard Deviation 0.2
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT25 (Week 25) Left Side Injection Site.1 Units on a scaleStandard Deviation 0.6
PRO 140Tolerability of Repeated Subcutaneous Administration of PRO 140 as Assessed by Study Participants (Using Visual Analogue Scale) and by Investigator-evaluation of Injection Site ReactionsT25 (Week 25) Right Side Injection Site0 Units on a scaleStandard Deviation 0.3

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026