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Study to Evaluate Safety and Toxicity of Polyphenon E (EGCG) in HIV-1-Infected Individuals

Placebo-Controlled, Dose-Blinded, Dose Escalation Study to Evaluate Safety, Tolerability, Pharmacokinetics and Antiviral Activity of Polyphenon E (EGCG) 14 Day Monotherapy in Antiretroviral Naïve and Experienced, HIV-1-Infected Subjects

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01433289
Enrollment
23
Registered
2011-09-13
Start date
2010-12-31
Completion date
2015-07-31
Last updated
2023-05-19

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

Conditions

HIV Infection

Keywords

HIV, safety, toxicity, pharmacokinetics, Polyphenon E, EGCG, green tea, CD4, viral load

Brief summary

The purpose of this study is to determine the safety, toxicity, dosing, and antiviral effects of epigallocatechin gallate (EGCG) in capsule form (Polyphenon® E), administered orally twice daily at three different doses in HIV-1-infected clinically stable, treatment-naïve and treatment-experienced adults not on concomitant antiretroviral (ARV) therapy.

Detailed description

HIV-1 infection ultimately results in impaired specific immune function by virtue of the initial binding of the HIV-1 virion envelope glycoprotein 120 (gp120) to the CD4 receptor in complex with a chemokine receptor on the T-cell surface1. Even though gp120 elicits virus-neutralizing antibodies, HIV-1 eludes the immune system and leads to the onset of AIDS. Ever since the discovery of the virus as the causative agent, there has been an intense effort to develop therapeutic methods to inhibit or prevent infection.2-4 CD4, a cell surface glycoprotein expressed on T cells, plays an important role in the recognition of antigens by T cells and in their activation.5 It also acts as a receptor for HIV-1 as gp120 binds to it via its D1 domain and, uses this interaction to infect CD4+ T cells.5 Therefore, there has been interest in finding molecules that block the binding of gp120 to CD4 (entry inhibitors) as a way of reducing HIV-1 infectivity. Studies have demonstrated evidence of high affinity binding of EGCG to the CD4 molecule with a Kd of 10nM with subsequent inhibition of gp120 binding to human CD4+ T cells. EGCG binds in the same molecular pocket on CD4, as does HIV-1-gp120 at physiologically relevant concentrations. This is a phase I, placebo-controlled, dose-blinded, randomized study of Polyphenon® E as monotherapy in participants who are HIV-1-infected with a CD+ T lymphocyte count of at least 250 cells/mm3 and are ARV-naïve or ARV-experienced. There will be 3 dose levels and for each dose level, there will be 6 subjects who will receive the study drug and 2 subjects who will be randomized to take placebo. Dosing will be escalated sequentially contingent on the safety profile of previous doses. Safety data from all participants receiving Polyphenon® E in the preceding dose level will be evaluated and considered acceptable prior to escalation to the next higher dose. PK analyses will be also performed as each dose level is completed. If at least 4 subjects on the active drug in each dose level have evaluable PK data, subjects will not be replaced. As the inability to achieve adequate EGCG concentrations that are necessary to inhibit HIV-1 replication is a major concern in this study, it is necessary to confirm EGCG pharmacokinetics in the event that the primary outcome measure of virologic response is not observed for each dose level. For each PK visit on Study Days 1 and 14, a total of 10 blood samples will be obtained per subject. If only a few samples cannot be used (this depends on the individual subject's pharmacokinetic profile, although one or two unevaluable samples will not likely cause a subject's data to be unevaluable), PK analyses can still be performed and will not require subjects to be deemed unevaluable and replaced.

Interventions

DRUGPlacebo

There will be 3 dose levels and for each dose level, there will be 6 subjects who will receive the study drug and 2 subjects who will be randomized to take placebo. Dosing will be escalated sequentially contingent on the safety profile of previous doses. Safety data from all participants receiving Polyphenon® E in the preceding dose level will be evaluated and considered acceptable prior to escalation to the next higher dose. PK analyses will be also performed as each dose level is completed. It is necessary to confirm EGCG pharmacokinetics in the event that the primary outcome measure of virologic response is not observed for each arm. For each PK visit on Study Days 1 and 14, a total of 10 blood samples will be obtained per subject.

Sponsors

National Center for Complementary and Integrative Health (NCCIH)
CollaboratorNIH
Baylor College of Medicine
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* HIV-infected individual as having at least two of the following in any combination obtained from 2 different samples: Positive HIV rapid test or ELISA and Western Blot; HIV RNA PCR\>10,000 copies/ml; positive HIV DNA PCR; neutralizable HIV p 24 antigen * Asymptomatic HIV-1 infected individuals who are either antiretroviral-naive or treatment-experienced. Subjects must have not been on ARV treatment for at least 12 weeks prior to enrollment and not have plans to start ARV treatment within 8 weeks of study initiation. * Male or female 18 to 65 years of age. Males must use barrier methods of contraception Females must be willing to abide by protocol specified methods to avoid becoming pregnant. Women of childbearing potential must use an adequate form of birth control determined by the investigator (e.g., oral contraceptives, double-barrier methods, hormonal injectable or implanted contraceptives, tubal ligation, or vasectomy). * HIV-1 RNA \>1,000 copies/mL at Screening. * In the opinion of the investigator, subject has a stable CD4+ T lymphocyte count while off ARV and 250 cells/mm3 at Screening. * Participants should have no clinically significant findings on screening evaluations (clinical, laboratory, or EKG). * Be able to comprehend and willing to sign an ICF. * Be able to comply with the protocol requirements. * Have life expectancy \> 6 months. * Laboratory values obtained during screening must be within normal limits or meet the following requirements (Safety Labs): * ANC 1000/mm3 * Hemoglobin 9.0 g/dL * Glucose (nonfasting) \<116 mg/dL * Bilirubin 1.5 x upper limit of normal (ULN) * Liver function tests (AST & ALT) 1.25 x ULN at screening and baseline * GGT \< 5.0 x ULN * Negative hepatitis panel obtained less than or equal to 6 months prior to Study Entry * Creatinine 1.3 x ULN * Creatine phosphokinase (CPK) 5 x ULN unless further evaluation determines it to be due to exercise * Urine protein 2+ * Prothrombin time (PT)1.25 x ULN * Lipase 1.2 x ULN

Exclusion criteria

* Current or recent (\<3 months) history of opportunistic infection that, * Acute illness within 1 week of the baseline visit. * Participant is not able to comply with the dosing schedule and protocol evaluations. * Participant is anticipated to begin ARV treatment during participation in the study. * Pregnancy, breastfeeding or postpartum (less than 3 months). * Diagnosis of diabetes. * Any condition which could compromise participant safety or adherence to the protocol. * Documented positive test for hepatitis B surface antigen, hepatitis B surface antibody (with the exception of participants who received hepatitis B vaccination and have hepatitis B surface antibody), hepatitis B core antibody, and hepatitis C antibody. * Any grade 3 or 4 laboratory abnormality noted at screening according to the DAIDS grading scale (Appendix A), except for the following: * Grade 3 or 4 triglyceride elevations. * Grade 3 cholesterol elevation. * Grade 3 non-fasting glucose elevation. * Participant has a malabsorption syndrome possibly affecting drug absorption (e.g. Crohn's disease or chronic pancreatitis). * Participant has received an HIV prophylactic or therapeutic vaccination within 6 months prior to the first dose of study medication. * Investigational therapy within 30 days prior to the Baseline visit. * Radiation therapy or systemic cytotoxic chemotherapeutic agents within 12 weeks prior to the baseline visit or have not recovered from side effects from such therapy prior to the first dose of study medication. * Positive urine screen for drugs of abuse at Screening, unless the investigator deems that the result is associated with a prescribed medication or inhaled use of THC. * Inability to avoid all tea/tea products (including herbal, caffeinated, decaffeinated, iced tea), apples, chocolate, broad beans (fava beans), plums, prunes, cherries, fruit juices containing apples, cherries, or plums, dietary supplements, and herbal products for 1 week prior to the baseline visit and for the duration of the study. * Inability to limit caffeine intake to not exceed 12 oz. of caffeinated beverage per day (if espresso, no more than 1 oz. or 1 shot) beginning 2 days prior and for the duration of the study. * Prior exposure to TNX-355 (an investigational anti-HIV agent that binds to the CD4+ T lymphocyte surface). * Participant has used proton pump inhibitors starting 14 days before Study Day 1 and is unable to avoid taking proton pump inhibitors for the duration of the study. * Participant has used H2 blockers starting 24 hours before Study Day 1 and is unable to avoid taking H2 blockers for the duration of the study.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Adverse Events14 daysSafety of Polyphenon E (800mg, 1200mg, 1600mg EGCG twice daily for 14 days) in HIV-1-infected subjects.
Median Change of log10 HIV-1 RNA Copies/mlBaseline and 14 daysMedian change of log10 HIV-1 RNA copies/ml from baseline in subjects who have completed 14 days of treatment (800mg, 1200mg, 1600mg EGCG bid) or placebo.

Secondary

MeasureTime frameDescription
Number of Participants Achieving > 0.75 or 1.0 log10 Reduction in HIV-1 RNA or <400 Copies/mlBaseline to 14 daysThe number of participants achieving \>0.75 or 1.0 log10 reduction in HIV-1 RNA or \<400 copies/ml with 14 days of Polyphenon E (800mg, 1200mg, or 1600mg EGCG bid) or placebo.
The Mean Change in CD4+ T Lymphocyte CountsBaseline to 14 daysThe mean change in CD4+ T lymphocyte counts when participants have had Polyphenon E (800mg, 1200mg, 1600mg EGCG bid for 14 days).
Composite of Pharmacokinetics Time Frame: Predose, 0,0.5,1,1.5,2,3,4,6,8,12 Hours Post-dosePredose, 0,0.5,1,1.5,2,3,4,6,8,12 Hours Post-dose on Days 1 and 14Plasma PK parameters of EGCG after single dose and at steady state (after 14 day EGCG treatment).

Countries

United States

Participant flow

Participants by arm

ArmCount
Polyphenon E 1600 mg/Day
Drug: Polyphenon E Polyphenon E capsules containing 200 mg of epigallocatechin-gallate. Four capsules twice a day. Polyphenon E: There will be three treatment arms, each consisting of 6 participants. Dosing will be escalated sequentially contingent on the safety profile of previous doses. Safety data from all participants receiving Polyphenon® E in the preceding arm will be evaluated and considered acceptable prior to escalation to the next higher dose. PK analyses will be also performed as each arm is completed. It is necessary to confirm EGCG pharmacokinetics in the event that the primary outcome measure of virologic response is not observed for each arm. For each PK visit on Study Days 1 and 14, a total of 10 blood samples will be obtained per subject.
6
Polyphenon E 2400 mg/Day
Drug: Polyphenon E Polyphenon E capsules containing 200 mg of epigallocatechin-gallate. Six capsules twice a day. Polyphenon E: There will be three treatment arms, each consisting of 6 participants. Dosing will be escalated sequentially contingent on the safety profile of previous doses. Safety data from all participants receiving Polyphenon® E in the preceding arm will be evaluated and considered acceptable prior to escalation to the next higher dose. PK analyses will be also performed as each arm is completed. It is necessary to confirm EGCG pharmacokinetics in the event that the primary outcome measure of virologic response is not observed for each arm. For each PK visit on Study Days 1 and 14, a total of 10 blood samples will be obtained per subject.
6
Polyphenon E 3200 mg/Day
Drug: Polyphenon E Polyphenon E capsules containing 200 mg of epigallocatechin-gallate. Eight capsules twice a day. Polyphenon E: There will be three treatment arms, each consisting of 6 participants. Dosing will be escalated sequentially contingent on the safety profile of previous doses. Safety data from all participants receiving Polyphenon® E in the preceding arm will be evaluated and considered acceptable prior to escalation to the next higher dose. PK analyses will be also performed as each arm is completed. It is necessary to confirm EGCG pharmacokinetics in the event that the primary outcome measure of virologic response is not observed for each arm. For each PK visit on Study Days 1 and 14, a total of 10 blood samples will be obtained per subject.
5
Placebo
No active drug (Polyphenon E) is given in the Placebo group. A total of 6 participants will be in the Placebo group. 2 participants from the Placebo group will be paired with each of the active treatment groups. Safety data from all participants will be evaluated.
6
Total23

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Overall StudyPregnancy0100

Baseline characteristics

CharacteristicPolyphenon E 1600 mg/DayPolyphenon E 2400 mg/DayPolyphenon E 3200 mg/DayPlaceboTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
6 Participants6 Participants5 Participants6 Participants23 Participants
Age, Continuous34.65 years
STANDARD_DEVIATION 11.529
28.5166 years
STANDARD_DEVIATION 6.3857
27.3666 years
STANDARD_DEVIATION 4.6161
34.7666 years
STANDARD_DEVIATION 9.231
31.3249 years
STANDARD_DEVIATION 3.4079
CD4 count380 cell count (10^6 cells/L)594 cell count (10^6 cells/L)432 cell count (10^6 cells/L)558.5 cell count (10^6 cells/L)509 cell count (10^6 cells/L)
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
2 Participants5 Participants4 Participants4 Participants15 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
4 Participants1 Participants1 Participants2 Participants8 Participants
Region of Enrollment
United States
6 participants6 participants5 participants6 participants23 participants
Sex: Female, Male
Female
1 Participants5 Participants1 Participants5 Participants12 Participants
Sex: Female, Male
Male
5 Participants1 Participants4 Participants1 Participants11 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
0 / 60 / 60 / 50 / 6
other
Total, other adverse events
1 / 62 / 63 / 50 / 6
serious
Total, serious adverse events
0 / 60 / 60 / 50 / 6

Outcome results

Primary

Median Change of log10 HIV-1 RNA Copies/ml

Median change of log10 HIV-1 RNA copies/ml from baseline in subjects who have completed 14 days of treatment (800mg, 1200mg, 1600mg EGCG bid) or placebo.

Time frame: Baseline and 14 days

ArmMeasureValue (MEDIAN)
Polyphenon E 1600 mg/DayMedian Change of log10 HIV-1 RNA Copies/ml0.01 log10 HIV RNA copies/ml
Polyphenon E 2400 mg/DayMedian Change of log10 HIV-1 RNA Copies/ml-0.07 log10 HIV RNA copies/ml
Polyphenon E 3200 mg/DayMedian Change of log10 HIV-1 RNA Copies/ml0.17 log10 HIV RNA copies/ml
PlaceboMedian Change of log10 HIV-1 RNA Copies/ml0.01 log10 HIV RNA copies/ml
Comparison: The study hypothesis tested whether Polyphenon E given twice daily for 14 days at the specified doses has an effect on antiviral activity compared with placebo, measured by differences from baseline to day 14 in plasma HIV-1 RNA level (log10 copies/mL). The Wilcoxon signed-rank test was used to test the null hypothesis that there was no change at Day 14 versus baseline.p-value: >0.05Wilcoxon (Mann-Whitney)
p-value: 0.74Kruskal-Wallis
Primary

Number of Participants With Adverse Events

Safety of Polyphenon E (800mg, 1200mg, 1600mg EGCG twice daily for 14 days) in HIV-1-infected subjects.

Time frame: 14 days

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Polyphenon E 1600 mg/DayNumber of Participants With Adverse EventsGrade 2 AE- Moderate; minimal, local or noninvasive intervention indicated0 Participants
Polyphenon E 1600 mg/DayNumber of Participants With Adverse EventsGrade 1 AE Grade 1 AE- Mild; asymptomatic or mild symptoms, intervention not indicated1 Participants
Polyphenon E 1600 mg/DayNumber of Participants With Adverse EventsGrade 3 AE- Severe; but not immediately life-threatening; hospitalization indicated; disabling0 Participants
Polyphenon E 1600 mg/DayNumber of Participants With Adverse EventsGrade 5 AE- Death related to AE0 Participants
Polyphenon E 1600 mg/DayNumber of Participants With Adverse EventsGrade 4 AE- Life-threatening consequences; urgent intervention indicated.0 Participants
Polyphenon E 2400 mg/DayNumber of Participants With Adverse EventsGrade 5 AE- Death related to AE0 Participants
Polyphenon E 2400 mg/DayNumber of Participants With Adverse EventsGrade 1 AE Grade 1 AE- Mild; asymptomatic or mild symptoms, intervention not indicated2 Participants
Polyphenon E 2400 mg/DayNumber of Participants With Adverse EventsGrade 2 AE- Moderate; minimal, local or noninvasive intervention indicated0 Participants
Polyphenon E 2400 mg/DayNumber of Participants With Adverse EventsGrade 3 AE- Severe; but not immediately life-threatening; hospitalization indicated; disabling0 Participants
Polyphenon E 2400 mg/DayNumber of Participants With Adverse EventsGrade 4 AE- Life-threatening consequences; urgent intervention indicated.0 Participants
Polyphenon E 3200 mg/DayNumber of Participants With Adverse EventsGrade 2 AE- Moderate; minimal, local or noninvasive intervention indicated0 Participants
Polyphenon E 3200 mg/DayNumber of Participants With Adverse EventsGrade 3 AE- Severe; but not immediately life-threatening; hospitalization indicated; disabling0 Participants
Polyphenon E 3200 mg/DayNumber of Participants With Adverse EventsGrade 4 AE- Life-threatening consequences; urgent intervention indicated.0 Participants
Polyphenon E 3200 mg/DayNumber of Participants With Adverse EventsGrade 1 AE Grade 1 AE- Mild; asymptomatic or mild symptoms, intervention not indicated3 Participants
Polyphenon E 3200 mg/DayNumber of Participants With Adverse EventsGrade 5 AE- Death related to AE0 Participants
PlaceboNumber of Participants With Adverse EventsGrade 2 AE- Moderate; minimal, local or noninvasive intervention indicated0 Participants
PlaceboNumber of Participants With Adverse EventsGrade 4 AE- Life-threatening consequences; urgent intervention indicated.0 Participants
PlaceboNumber of Participants With Adverse EventsGrade 3 AE- Severe; but not immediately life-threatening; hospitalization indicated; disabling0 Participants
PlaceboNumber of Participants With Adverse EventsGrade 1 AE Grade 1 AE- Mild; asymptomatic or mild symptoms, intervention not indicated0 Participants
PlaceboNumber of Participants With Adverse EventsGrade 5 AE- Death related to AE0 Participants
Secondary

Composite of Pharmacokinetics Time Frame: Predose, 0,0.5,1,1.5,2,3,4,6,8,12 Hours Post-dose

Plasma PK parameters of EGCG after single dose and at steady state (after 14 day EGCG treatment).

Time frame: Predose, 0,0.5,1,1.5,2,3,4,6,8,12 Hours Post-dose on Days 1 and 14

Population: The number of subjects who received treatment with Polyphenon E in each arm for each pharmacokinetic outcome measure \[t1/2 (h), Cmax (ng/ml), AUC 0-12h (h\*ng/ml), CL/F (L/h). Day14:Day1 ratio reported as geometric mean (90% confidence interval).

ArmMeasureGroupValue (GEOMETRIC_MEAN)
Polyphenon E 1600 mg/DayComposite of Pharmacokinetics Time Frame: Predose, 0,0.5,1,1.5,2,3,4,6,8,12 Hours Post-doset 1/21.08 Ratio
Polyphenon E 1600 mg/DayComposite of Pharmacokinetics Time Frame: Predose, 0,0.5,1,1.5,2,3,4,6,8,12 Hours Post-doseCmax1.21 Ratio
Polyphenon E 1600 mg/DayComposite of Pharmacokinetics Time Frame: Predose, 0,0.5,1,1.5,2,3,4,6,8,12 Hours Post-doseAUC 0-121.4 Ratio
Polyphenon E 1600 mg/DayComposite of Pharmacokinetics Time Frame: Predose, 0,0.5,1,1.5,2,3,4,6,8,12 Hours Post-doseCL/F0.75 Ratio
Polyphenon E 2400 mg/DayComposite of Pharmacokinetics Time Frame: Predose, 0,0.5,1,1.5,2,3,4,6,8,12 Hours Post-doseCL/F0.81 Ratio
Polyphenon E 2400 mg/DayComposite of Pharmacokinetics Time Frame: Predose, 0,0.5,1,1.5,2,3,4,6,8,12 Hours Post-doset 1/21.14 Ratio
Polyphenon E 2400 mg/DayComposite of Pharmacokinetics Time Frame: Predose, 0,0.5,1,1.5,2,3,4,6,8,12 Hours Post-doseAUC 0-121.28 Ratio
Polyphenon E 2400 mg/DayComposite of Pharmacokinetics Time Frame: Predose, 0,0.5,1,1.5,2,3,4,6,8,12 Hours Post-doseCmax1.33 Ratio
Polyphenon E 3200 mg/DayComposite of Pharmacokinetics Time Frame: Predose, 0,0.5,1,1.5,2,3,4,6,8,12 Hours Post-doseCL/F1.21 Ratio
Polyphenon E 3200 mg/DayComposite of Pharmacokinetics Time Frame: Predose, 0,0.5,1,1.5,2,3,4,6,8,12 Hours Post-doseCmax0.65 Ratio
Polyphenon E 3200 mg/DayComposite of Pharmacokinetics Time Frame: Predose, 0,0.5,1,1.5,2,3,4,6,8,12 Hours Post-doseAUC 0-120.88 Ratio
Polyphenon E 3200 mg/DayComposite of Pharmacokinetics Time Frame: Predose, 0,0.5,1,1.5,2,3,4,6,8,12 Hours Post-doset 1/20.9 Ratio
Secondary

Number of Participants Achieving > 0.75 or 1.0 log10 Reduction in HIV-1 RNA or <400 Copies/ml

The number of participants achieving \>0.75 or 1.0 log10 reduction in HIV-1 RNA or \<400 copies/ml with 14 days of Polyphenon E (800mg, 1200mg, or 1600mg EGCG bid) or placebo.

Time frame: Baseline to 14 days

ArmMeasureValue (NUMBER)
Polyphenon E 1600 mg/DayNumber of Participants Achieving > 0.75 or 1.0 log10 Reduction in HIV-1 RNA or <400 Copies/ml0 participants
Polyphenon E 2400 mg/DayNumber of Participants Achieving > 0.75 or 1.0 log10 Reduction in HIV-1 RNA or <400 Copies/ml0 participants
Polyphenon E 3200 mg/DayNumber of Participants Achieving > 0.75 or 1.0 log10 Reduction in HIV-1 RNA or <400 Copies/ml0 participants
PlaceboNumber of Participants Achieving > 0.75 or 1.0 log10 Reduction in HIV-1 RNA or <400 Copies/ml0 participants
Secondary

The Mean Change in CD4+ T Lymphocyte Counts

The mean change in CD4+ T lymphocyte counts when participants have had Polyphenon E (800mg, 1200mg, 1600mg EGCG bid for 14 days).

Time frame: Baseline to 14 days

ArmMeasureValue (MEAN)Dispersion
Polyphenon E 1600 mg/DayThe Mean Change in CD4+ T Lymphocyte Counts11.833333 10^6 cells/LStandard Deviation 14.282857
Polyphenon E 2400 mg/DayThe Mean Change in CD4+ T Lymphocyte Counts16.166667 10^6 cells/LStandard Deviation 14.282857
Polyphenon E 3200 mg/DayThe Mean Change in CD4+ T Lymphocyte Counts11.800000 10^6 cells/LStandard Deviation 13.416408
PlaceboThe Mean Change in CD4+ T Lymphocyte Counts8.166667 10^6 cells/LStandard Deviation 14.282857

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