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Minocycline for the Treatment of Decreased Mental Function in HIV-Infected Adults

Phase II, Randomized, Placebo-Controlled, Double-Blind Study of Minocycline in the Treatment of HIV-Associated Cognitive Impairment

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00361257
Enrollment
107
Registered
2006-08-08
Start date
2007-03-31
Completion date
2010-01-31
Last updated
2016-02-05

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

Conditions

HIV Infections

Keywords

Treatment Experienced

Brief summary

The purpose of this study is to determine the effectiveness of minocycline, an antibiotic, in lessening the decreased mental function sometimes caused by anti-HIV drugs.

Detailed description

Cognitive impairment, including disabling cognitive, behavioral, and social dysfunction, continues to be a major problem faced by HIV-infected people taking antiretroviral therapy (ART). Research is needed to develop treatment that can be given alongside ART to prevent or lessen cognitive impairment caused by ART. Minocycline, an antibiotic commonly used for the treatment of acne and rheumatoid arthritis, has demonstrated anti-inflammatory and neuroprotective properties in previous studies. This study will evaluate the effectiveness of 24-week therapy with minocycline in lessening the cognitive impairment of HIV infected adults taking ART. This study will last at least 24 weeks and has two steps. Patients will be stratified by HIV viral load and their neurocognitive state at study screening. In Step I, patients will be randomly assigned to one of two groups. Group 1 participants will receive twice-daily minocycline for 24 weeks; Group 2 participants will receive placebo. At the end of Phase I, study participants will be offered to enter Step II; all participants in Step II will receive twice-daily minocycline for an additional 24 weeks. There will be a total of 8 study visits: 5 visits for Step I (including the entry visit) and 3 visits for Step II. Medical history will occur at all visits. Blood collection will occur at all visits. Participants who have positive nonreactive rapid plasma regain (RPR) values at screening will have mandatory lumbar punctures; for those with negative serum RPR results lumbar punctures are optional. Participants who test positive for syphilis will also have a lumbar puncture at their discretion to determine if syphilis has affected the brain. A neurological exam, other neuropsychological, dementia, and depression scale assessments, and urine collection will occur at most visits. Patients will be asked to complete a questionnaire on daily living at study entry and Weeks 12 and 24. Patients who have a lumbar puncture at Week 24 will receive a phone call 2 to 5 days after the procedure to report any adverse effects. Some participants may also have an electrocardiogram (ECG) during the study. For participants not on atazanavir some procedures and sample collections are optional.

Interventions

DRUGMinocycline

Tetracycline antibiotic, 100 mg taken orally every 12 hours

DRUGPlacebo (Tetracycline)

Tetracycline antibiotic placebo, orally every 12 hours

Sponsors

National Institute of Allergy and Infectious Diseases (NIAID)
CollaboratorNIH
Neurologic AIDS Research Consortium (NARC)
CollaboratorOTHER
Advancing Clinical Therapeutics Globally for HIV/AIDS and Other Infections
Lead SponsorNETWORK

Study design

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

Eligibility

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

Inclusion criteria

* HIV infected * Currently on a stable ART regimen for at least 16 consecutive weeks prior to study entry. Participants whose regimens have changed with respect to dose or formulation are eligible, but patients who have changed to different drugs in the same class are not eligible. Participants taking atazanavir must also be taking ritonavir or a ritonavir-boosted drug to be eligible for this study. More information on this criterion can be found in the protocol. * Plan to stay on current ART regimen between study screening and Week 24 * AIDS Dementia Scale (ADC) Stage greater than 0 * Cognitive impairment, as evidenced by neuropsychological tests administered at screening * Progressive neurocognitive decline. More information on this criterion can be found in the protocol. * Estimated premorbid IQ of 70 or higher indicated by an age-corrected scaled score of 5 or higher on the vocabulary section of the Wechsler Adult Intelligence Scale Revised (WAIS-R) administered at study screening * Karnofsky performance score of 60 or higher * Ability to sit and stand for at least 2 hours and swallow medications with an 8-ounce glass of water * Willing to use acceptable methods of contraception * Willing to adhere to study schedule

Exclusion criteria

* Current cancers. Patients with basal cell carcinoma, in situ carcinoma of the cervix, or Kaposi's sarcoma without evidence of visceral involvement or cancer not requiring systemic chemotherapy are not excluded. * Severe premorbid psychiatric illness, including schizophrenia and major depression, which, in the opinion of the investigator, may interfere with the study * Active symptomatic AIDS-defining opportunistic infection within 45 days prior to study entry * Previous or current confounding neurological disorders. More information on this criterion can be found in the protocol. * Central nervous system infections or cancers. More information on this criterion can be found in the protocol. * Systemic lupus * Thyroid disease diagnosed within 24 weeks of study entry * Active drug or alcohol abuse that, in the opinion of the investigator, may interfere with the study * Serious illness requiring systemic treatment or hospitalization. Patients who complete therapy or are clinically stable on therapy are not excluded. * Investigational agents within 45 days prior to study entry. Patients taking expanded access drugs or drugs used in an ACTG protocol for HIV treatment or for HIV-associated complications that are not prohibited by this protocol are not excluded. * History of allergy/sensitivity to minocycline or other tetracyclines and their formulations * Any esophageal or other condition that would interfere with a patient's ability to swallow study medication * Participation in a previous clinical drug research trial of HIV-associated cognitive impairment. Patients who have had an objective decline in performance as defined by the protocol are not excluded. * Any other clinically significant condition or laboratory abnormality that, in the opinion of the investigator, would interfere with the study * Certain medications * Certain abnormal laboratory values. Patients who test positive on nonreactive rapid plasma reagin tests (RPR)are not excluded. * Inability to undergo lumbar punctures * Breastfeeding

Design outcomes

Primary

MeasureTime frameDescription
Change in Cognitive Performance Compared to BaselineAt baseline and week 24Th cognitive performance is measured by NPZ-8. NPZ-8 is defined as the average of age and education adjusted z-scores of eight neuropsychological tests subcomponents in the neuropsychological test battery. These eight tests are: 1. Grooved Pegboard Dominant Hand (GPD) 2. Grooved Pegboard Non-dominant hand (GPN) 3. Choice Reaction Time (CRT) 4. Sequential Reaction Time (QRT) 5. Timed Gait (TIG) 6. Trail Making Part A (TMA) 7. Trail Making Part B (TMB) 8. Symbol Digit (SYD) The primary outcome is NPZ-8 score at week24 - NPZ-8 score at baseline.

Secondary

MeasureTime frameDescription
Change in Investigator's Clinical Global Impression Score (ICGIS)At week 24Clinicians were asked to rate their overall impression about the clinical improvement or worsening of his/her study participants. They can choose from the following 7 levels: (0) No Change, (1) Mild Improvement, (2) Moderate Improvement, (3) Marked Improvement, (4) Mild Worsening, (5) Moderate Worsening, and (6) Marked Worsening. For the analysis, we simplified the outcome into the following 3 levels: (0) worsened, (1) No Change, and (2) Improved.
Change in Cognitive Gross Motor Function Domain Z-ScoreAt baseline and week 24The cognitive gross motor function is a age and education adjusted z score of Timed Gait (TIG). The outcome is the 24 week change of cognitive gross motor function domain z-scores (week 24-baseline).
Change in Fine Motor Function Domain Z-ScoreAt baseline and week 24The fine motor function domain score is an average of age, sex, education, and African-American ethnicity adjusted z scores of Grooved Pegboard Dominant Hand (GPD) and Grooved Pegboard Non-dominant hand (GPN). The outcome is a 24 week change of the fine motor function domain z-score (week 24-baseline).
Change in Psychomotor Function Domain Z-ScoreAt baseline and week 24The psychomotor function domain score us the average of age, sex, education, and African-American ethnicity adjusted z scores of Trail Making Part A (TMA) and Trail Making Part B (TMB). The outcome is the 24 week change of psychomotor function domain z-scores (week24-baseline).
Change in Fine Motor/Nonverbal Function Domain Z-ScoreAt baseline and week 24The fine motor/nonverbal function domain score is a age and education adjusted z score of Symbol Digit Test (SYD) The outcome is the 24 change of fine motor/nonverbal function domain z-score (week 24-baseline).
Change in Information Processing Function Domain Z-ScoreAt baseline and week 24The information processing function domain score is the average of age and education adjusted z scores of simple and sequential reaction time - CalCAP. The outcome is the 24 week change of information processing function domain z-scores (week 24-baseline).
Change in Verbal Memory Domain Z-ScoreAt baseline and week 24The verbal memory domain score is the average of age and education adjusted z scores of Hopkins Verbal Learning Test- Revised, Learning and Delayed Recall. The outcome is the 24 week change of verbal memory domain z-scores (week 24-baseline).
Change in Frontal Systems Function Domain Z-ScoreAt baseline and week 24The frontal systems function domain score is the average of age and education adjusted z scores of Stroop Color Interference Test (CTP) and interference task (STP). The outcome is the 24 week change of frontal systems function domain z-score (week 24-baseline).
Change in Karnofsky Performance ScoreAt baseline and week 24The original Karnofsky performance score is 11 level score which ranges between 0 to 100. The score 100 means normal and 0 means death; therefore, higher score means higher ability to perform daily tasks. For the analysis, a new dichotomous variable (no change/worse vs. better at 24 weeks compared to baseline) was created.
Changes in Cluster of Differentiation 4 (CD4) Cell Counts (24 Weeks)At baseline and weeks 24The outcome was the 24 week change in CD4 cell count (week 24-baseline).
Changes in Cluster of Differentiation 8 (CD8) Cell Counts (24 Weeks)At baseline and week 24The outcome was the 24 week change of CD8 cell counts (week 24-baseline).
Change in Global Deficit Z-Score (GDS)At baseline and week 24GDS on the test battery is the simple average of all 14 individual deficit scores in the test battery, including Time Gait, Grooved Pegboard Test for the dominant and non-dominant hands, Trail Making Test parts A and B, Symbol Digit Test, simple and sequential reaction time - CalCAP, Hopkins Verbal Learning Test (Revised)- Learning, Delayed Recall and Recognition trials, and Stroop Color Interference Test-color, word, and interference tasks. The outcome is the 24 week change of GDS Z-score (24 week-baseline).
Change of HIV Plasma RiboNucleic Acid (RNA) Viral LoadAt baseline and week 24The original scale of HIV RNA viral load is between 30 copies/mL to infinitive. The minimum score of 30 is the lowest detectable value. The summary table categorized this continuous value to a dichotomous variable (\<30 copies/mL and \>= 30 copies/mL).
Changes in Instrumental Activities of Daily Living QuestionnaireAt baseline and week 24The Instrumental Activities of Daily Living (IADL) questionnaire is designed to learn more about how subjects are able to perform common tasks. There are 16 common tasks. For each task, if the score at the time of evaluation is worse than the best in the past, an indicator of 1 is given. Otherwise, the indicator is 0. The overall IADL score is a sum of 16 indicators divided by 16; therefore, the range is between 0 and 1 and the lower score is better. The 24-week change of IADL score was changed into a categorical variable (no change/worse vs. better) at week 24 compare to baseline.
Changes in Medication Management Test (Modified)At baseline and weeks 24The medication management test (modified) is designed to assess participants' medication management ability and their own medications and management. It's the number of how many times participants correctly answered 16 questions. The score ranges between 0 and 16, and higher score indicates better medication management.
Changes in Protein Markers of Oxidative Stress (Unit = Counts Per Second Only)At pre-entry and Week 24Protein marker of oxidative stress (Ceramides, Monohexosylceramides, Dihydro Glycosyl Galceramides, and Dihexosylceramides). For all markers, the outcome is the 24 week change (week 24-baseline).
Changes in Markers of Oxidative Stress and Immune Activation (Unit=pg/mL Only)At pre-entry and Week 24Protein markers of oxidative stress (Protein carbonyls) and markers of immune activation (TNF-a, IL-6,CXCL8, Hepatocyte growth factor, Osteopontin, sFAS, sFAS ligand, and CXCL12). For all markers, the outcome is the 24 week change (week 24-baseline).
Changes in Markers of Oxidative Stress (Unit = Pixels/mm2 Only)At pre-entry and Week 24Protein marker of oxidative stress (Neurofilament heavy polypeptide). The outcome is the 24 week change (week 24-baseline).
Changes in Neurotransmitter Levels (Unit = uM Only)At pre-entry and Week 24Neurotransmitter levels (Glutamate, Tryptophan, Anthranilic Acid, Quinolinic Acid, Kynurenin, and 3-Hydroxykynurenine). The outcome is the 24 week change (week 24-baseline).
Changes in Alternate Psychomotor Function Z-ScoreAt baseline and week 24The alternate psychomotor function is defined as the mean of age, sex, education, and African-American ethnicity adjusted z scores of Trail Making Part A (TMA), and age and education adjusted z score of Symbol Digit (SYD). The outcome is the 24 week change in alternate psychomotor function z-score (week 24-baseline).
Changes in Alternate Verbal Memory Z-ScoreAt baseline and week 24The alternate verbal memory was defined as a mean of age and education adjusted z score of trials 1 to 3 and delayed recall tests. The outcome is the 24 week change in alternate verbal memory z-score (week 24-baseline).
Changes in Alternate Frontal Systems Z-ScoreAt baseline and week 24The alternate frontal systems was defined as a mean of age and education adjusted z score of Interference task, and age, sex, education, and African-American ethnicity adjusted z score of Trail Making Part B. The outcome was the 24 week change in alternate frontal systems z-score (week 24-baseline).
Number of Participants With Grade 2 or Higher Toxicity and/or Signs and SymptomsThroughout study up to week 48Grade or higher means that adverse events were moderate, severe, or life-threatening, or death. Grade 2 or higher adverse events are lised in the Adverse Event section.

Countries

United States

Participant flow

Participants by arm

ArmCount
Minocycline
100 mg orally every 12 hours
52
Matching Placebo
Placebo taken orally every 12 hours
55
Total107

Baseline characteristics

CharacteristicMatching PlaceboMinocyclineTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
1 Participants0 Participants1 Participants
Age, Categorical
Between 18 and 65 years
54 Participants52 Participants106 Participants
Age, Continuous52 years
STANDARD_DEVIATION 7
50 years
STANDARD_DEVIATION 7
51 years
STANDARD_DEVIATION 7
Alternate Frontal Systems Z-Score-0.13 z-score
STANDARD_DEVIATION 1.09
-0.04 z-score
STANDARD_DEVIATION 0.86
-0.09 z-score
STANDARD_DEVIATION 0.98
Alternate Psychomotor Function Z-Score-0.63 z-score
STANDARD_DEVIATION 0.92
-0.54 z-score
STANDARD_DEVIATION 0.82
-0.58 z-score
STANDARD_DEVIATION 0.87
Alternate Verbal Memory Z-Score-1.41 z-score
STANDARD_DEVIATION 1.12
-1.33 z-score
STANDARD_DEVIATION 1.16
-1.37 z-score
STANDARD_DEVIATION 1.14
Central Nervous System (CNS) Penetration Score7 Scores on a scale
STANDARD_DEVIATION 3
7 Scores on a scale
STANDARD_DEVIATION 3
7 Scores on a scale
STANDARD_DEVIATION 3
Cluster of Differentiation 4 (CD4)535.49 copies/mm^3
STANDARD_DEVIATION 253.11
551.65 copies/mm^3
STANDARD_DEVIATION 312.96
543.35 copies/mm^3
STANDARD_DEVIATION 282.53
Cluster of Differentiation 8 (CD8)838.78 copies/mm^3
STANDARD_DEVIATION 353.73
925.58 copies/mm^3
STANDARD_DEVIATION 370.48
880.96 copies/mm^3
STANDARD_DEVIATION 362.88
Cognitive Gross Motor Function Domain Z-Score-3.66 z-score
STANDARD_DEVIATION 4.16
-2.44 z-score
STANDARD_DEVIATION 3.1
-3.06 z-score
STANDARD_DEVIATION 3.71
Cognitive Performance Score NPZ-8-1.03 z-score
STANDARD_DEVIATION 0.98
-0.75 z-score
STANDARD_DEVIATION 0.9
-0.90 z-score
STANDARD_DEVIATION 0.95
Fine Motor Function Domain Z-Score-0.73 z-score
STANDARD_DEVIATION 0.99
-0.35 z-score
STANDARD_DEVIATION 0.96
-0.55 z-score
STANDARD_DEVIATION 0.99
Fine Motor/Nonverbal Function Domain Z-Score-1.24 z-score
STANDARD_DEVIATION 1.18
-1.11 z-score
STANDARD_DEVIATION 1.15
-1.18 z-score
STANDARD_DEVIATION 1.16
Frontal Systems Function Domain Z-Score-1.05 z-score
STANDARD_DEVIATION 1.57
-0.79 z-score
STANDARD_DEVIATION 0.98
-0.92 z-score
STANDARD_DEVIATION 1.32
Global Deficit Z-Score (GDS)-1.08 z-score
STANDARD_DEVIATION 0.9
-0.86 z-score
STANDARD_DEVIATION 0.72
-0.97 z-score
STANDARD_DEVIATION 0.82
HIV-1 CerebroSpinal Fluid (CSF) RNA Viral Loads (VL)
CSF RNA VL <30 copies/mL
18 participants20 participants38 participants
HIV-1 CerebroSpinal Fluid (CSF) RNA Viral Loads (VL)
CSF RNA VL >=30 copies/mL
2 participants1 participants3 participants
HIV-1 CerebroSpinal Fluid (CSF) RNA Viral Loads (VL)
missing
35 participants31 participants66 participants
HIV-1 Plasma RiboNucleic Acid (RNA) Viral Loads
missing
8 participants3 participants11 participants
HIV-1 Plasma RiboNucleic Acid (RNA) Viral Loads
Plasma RNA VL < 30 copies/mL
41 participants42 participants83 participants
HIV-1 Plasma RiboNucleic Acid (RNA) Viral Loads
Plasma RNA VL >=30 copies/mL
6 participants7 participants13 participants
Information Processing Function Domain Z-Score-1.03 z-score
STANDARD_DEVIATION 1.49
-1.05 z-score
STANDARD_DEVIATION 1.52
-1.04 z-score
STANDARD_DEVIATION 1.5
Instrumental Activities of Daily Living (IADL) Summary Score0.13 Scores on a scale
STANDARD_DEVIATION 0.16
0.12 Scores on a scale
STANDARD_DEVIATION 0.15
0.12 Scores on a scale
STANDARD_DEVIATION 0.15
Karnofsky Score
100
5 participants8 participants13 participants
Karnofsky Score
70
0 participants5 participants5 participants
Karnofsky Score
80
16 participants13 participants29 participants
Karnofsky Score
90
34 participants21 participants55 participants
Karnofsky Score
missing
0 participants5 participants5 participants
Medication Management Test (MMT) Score14.09 Scores on a scale
STANDARD_DEVIATION 2.52
14.72 Scores on a scale
STANDARD_DEVIATION 1.41
14.39 Scores on a scale
STANDARD_DEVIATION 2.08
Psychomotor Function Domain Z-Score0.04 z-score
STANDARD_DEVIATION 1.03
0.15 z-score
STANDARD_DEVIATION 1
0.10 z-score
STANDARD_DEVIATION 1.01
Sex: Female, Male
Female
13 Participants5 Participants18 Participants
Sex: Female, Male
Male
42 Participants47 Participants89 Participants
Stratification Variable 1 - CSF Viral Load (VL) - Pre-baseline
CSF RNA VL < 30 copies/mL
22 participants21 participants43 participants
Stratification Variable 1 - CSF Viral Load (VL) - Pre-baseline
CSF RNA VL >= 30 copies/mL
4 participants3 participants7 participants
Stratification Variable 1 - CSF Viral Load (VL) - Pre-baseline
No Lumbar Punctures (LPs)
29 participants28 participants57 participants
Stratification Variable 2 - Objective or subjective Neuropsychological test - Pre-baseline
Objective Neuropsychological (NP) Test
7 participants5 participants12 participants
Stratification Variable 2 - Objective or subjective Neuropsychological test - Pre-baseline
Subjective NP Test
48 participants47 participants95 participants
Verbal Memory Domain Z-Score-1.41 z-score
STANDARD_DEVIATION 1.12
-1.33 z-score
STANDARD_DEVIATION 1.16
-1.37 z-score
STANDARD_DEVIATION 1.14

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
18 / 5234 / 55
serious
Total, serious adverse events
7 / 523 / 55

Outcome results

Primary

Change in Cognitive Performance Compared to Baseline

Th cognitive performance is measured by NPZ-8. NPZ-8 is defined as the average of age and education adjusted z-scores of eight neuropsychological tests subcomponents in the neuropsychological test battery. These eight tests are: 1. Grooved Pegboard Dominant Hand (GPD) 2. Grooved Pegboard Non-dominant hand (GPN) 3. Choice Reaction Time (CRT) 4. Sequential Reaction Time (QRT) 5. Timed Gait (TIG) 6. Trail Making Part A (TMA) 7. Trail Making Part B (TMB) 8. Symbol Digit (SYD) The primary outcome is NPZ-8 score at week24 - NPZ-8 score at baseline.

Time frame: At baseline and week 24

Population: The descriptive statistics above were based on the observed data; however, the statistical analysis was conducted by the ITT analysis and the missing outcomes at week 24 were imputed based on multiple regression imputations.

ArmMeasureValue (MEAN)Dispersion
MinocyclineChange in Cognitive Performance Compared to Baseline0.12 z-scoreStandard Deviation 0.71
Matching PlaceboChange in Cognitive Performance Compared to Baseline0.17 z-scoreStandard Deviation 0.67
Comparison: The null hypothesis was that the 24-week change of NPZ-8 in the minocycline group was the same as the one in the placebo group.p-value: 0.65195% CI: [-0.258, 0.386]Regression, Linear
Secondary

Change in Cognitive Gross Motor Function Domain Z-Score

The cognitive gross motor function is a age and education adjusted z score of Timed Gait (TIG). The outcome is the 24 week change of cognitive gross motor function domain z-scores (week 24-baseline).

Time frame: At baseline and week 24

Population: The analysis was based on the observed data.

ArmMeasureValue (MEAN)Dispersion
MinocyclineChange in Cognitive Gross Motor Function Domain Z-Score0.22 z-scoreStandard Deviation 1.61
Matching PlaceboChange in Cognitive Gross Motor Function Domain Z-Score0.08 z-scoreStandard Deviation 2.68
Comparison: The null hypothesis is that the 24 week change in the cognitive gross motor function domain score in the minocycline group is the same as the one in the placebo group.p-value: 0.24395% CI: [-0.349, 1.354]Regression, Linear
Secondary

Change in Fine Motor Function Domain Z-Score

The fine motor function domain score is an average of age, sex, education, and African-American ethnicity adjusted z scores of Grooved Pegboard Dominant Hand (GPD) and Grooved Pegboard Non-dominant hand (GPN). The outcome is a 24 week change of the fine motor function domain z-score (week 24-baseline).

Time frame: At baseline and week 24

Population: The analysis was based on observed data.

ArmMeasureValue (MEAN)Dispersion
MinocyclineChange in Fine Motor Function Domain Z-Score0.27 z-scoreStandard Deviation 0.84
Matching PlaceboChange in Fine Motor Function Domain Z-Score0.05 z-scoreStandard Deviation 0.61
Comparison: The null hypothesis was that the 24 week change in fine motor function domain score in the minocycline group was the same as the one in the placebo group.p-value: 0.05995% CI: [-0.011, 0.596]Regression, Linear
Secondary

Change in Fine Motor/Nonverbal Function Domain Z-Score

The fine motor/nonverbal function domain score is a age and education adjusted z score of Symbol Digit Test (SYD) The outcome is the 24 change of fine motor/nonverbal function domain z-score (week 24-baseline).

Time frame: At baseline and week 24

Population: The analysis was based on observed data.

ArmMeasureValue (MEAN)Dispersion
MinocyclineChange in Fine Motor/Nonverbal Function Domain Z-Score-0.15 z-scoreStandard Deviation 0.76
Matching PlaceboChange in Fine Motor/Nonverbal Function Domain Z-Score-0.07 z-scoreStandard Deviation 0.92
Comparison: The null hypothesis was that the 24 week change of fine motor/nonverbal function domain score in the minocycline group was the same as in the placebo group.p-value: 0.63795% CI: [-0.449, 0.276]Regression, Linear
Secondary

Change in Frontal Systems Function Domain Z-Score

The frontal systems function domain score is the average of age and education adjusted z scores of Stroop Color Interference Test (CTP) and interference task (STP). The outcome is the 24 week change of frontal systems function domain z-score (week 24-baseline).

Time frame: At baseline and week 24

Population: The analysis was based on observed data.

ArmMeasureValue (MEAN)Dispersion
MinocyclineChange in Frontal Systems Function Domain Z-Score-0.04 z-scoreStandard Deviation 0.78
Matching PlaceboChange in Frontal Systems Function Domain Z-Score0.21 z-scoreStandard Deviation 1.05
Comparison: The null hypothesis was that the 24 week change of frontal systems function domain score in the minocycline group was the same as the one in the placebo group.p-value: 0.46795% CI: [-0.467, 0.216]Regression, Linear
Secondary

Change in Global Deficit Z-Score (GDS)

GDS on the test battery is the simple average of all 14 individual deficit scores in the test battery, including Time Gait, Grooved Pegboard Test for the dominant and non-dominant hands, Trail Making Test parts A and B, Symbol Digit Test, simple and sequential reaction time - CalCAP, Hopkins Verbal Learning Test (Revised)- Learning, Delayed Recall and Recognition trials, and Stroop Color Interference Test-color, word, and interference tasks. The outcome is the 24 week change of GDS Z-score (24 week-baseline).

Time frame: At baseline and week 24

Population: The analysis was based on the observed data.

ArmMeasureValue (MEAN)Dispersion
MinocyclineChange in Global Deficit Z-Score (GDS)0.11 z-scoreStandard Deviation 0.58
Matching PlaceboChange in Global Deficit Z-Score (GDS)0.09 z-scoreStandard Deviation 0.51
Comparison: The null hypothesis was that the 24-week changes in Global Deficit Score (GDS) between the minocycline and placebo groups are the same.p-value: 0.43495% CI: [-0.14, 0.323]Regression, Linear
Secondary

Change in Information Processing Function Domain Z-Score

The information processing function domain score is the average of age and education adjusted z scores of simple and sequential reaction time - CalCAP. The outcome is the 24 week change of information processing function domain z-scores (week 24-baseline).

Time frame: At baseline and week 24

Population: The analysis was based on observed data.

ArmMeasureValue (MEAN)Dispersion
MinocyclineChange in Information Processing Function Domain Z-Score0.14 z-scoreStandard Deviation 1.65
Matching PlaceboChange in Information Processing Function Domain Z-Score0.20 z-scoreStandard Deviation 1.14
Comparison: The null hypothesis was that the 24 week change of information processing function domain score in the minocycline group was the same as the one in the placebo group.p-value: 0.75495% CI: [-0.544, 0.396]Regression, Linear
Secondary

Change in Investigator's Clinical Global Impression Score (ICGIS)

Clinicians were asked to rate their overall impression about the clinical improvement or worsening of his/her study participants. They can choose from the following 7 levels: (0) No Change, (1) Mild Improvement, (2) Moderate Improvement, (3) Marked Improvement, (4) Mild Worsening, (5) Moderate Worsening, and (6) Marked Worsening. For the analysis, we simplified the outcome into the following 3 levels: (0) worsened, (1) No Change, and (2) Improved.

Time frame: At week 24

Population: The analysis was based on observed data.

ArmMeasureGroupValue (NUMBER)
MinocyclineChange in Investigator's Clinical Global Impression Score (ICGIS)Worsened4 participants
MinocyclineChange in Investigator's Clinical Global Impression Score (ICGIS)No Change28 participants
MinocyclineChange in Investigator's Clinical Global Impression Score (ICGIS)Improved9 participants
Matching PlaceboChange in Investigator's Clinical Global Impression Score (ICGIS)Worsened2 participants
Matching PlaceboChange in Investigator's Clinical Global Impression Score (ICGIS)No Change31 participants
Matching PlaceboChange in Investigator's Clinical Global Impression Score (ICGIS)Improved12 participants
Comparison: The null hypothesis is that the 24 week changes of participants' clinical status in the minocycline group were the same as the ones in the placebo group based on ICGIS.p-value: 0.33795% CI: [0.625, 3.936]Regression, Cumulative Logistic
Secondary

Change in Karnofsky Performance Score

The original Karnofsky performance score is 11 level score which ranges between 0 to 100. The score 100 means normal and 0 means death; therefore, higher score means higher ability to perform daily tasks. For the analysis, a new dichotomous variable (no change/worse vs. better at 24 weeks compared to baseline) was created.

Time frame: At baseline and week 24

Population: The analysis was based on observed data.

ArmMeasureGroupValue (NUMBER)
MinocyclineChange in Karnofsky Performance ScoreNo Change/Worse33 participants
MinocyclineChange in Karnofsky Performance ScoreBetter6 participants
Matching PlaceboChange in Karnofsky Performance ScoreNo Change/Worse42 participants
Matching PlaceboChange in Karnofsky Performance ScoreBetter3 participants
Comparison: The null hypothesis was that the proportion of being better at 24 weeks in minocycline group was the same as in the placebo group.p-value: 0.23495% CI: [0.575, 10.668]Regression, Linear
Secondary

Change in Psychomotor Function Domain Z-Score

The psychomotor function domain score us the average of age, sex, education, and African-American ethnicity adjusted z scores of Trail Making Part A (TMA) and Trail Making Part B (TMB). The outcome is the 24 week change of psychomotor function domain z-scores (week24-baseline).

Time frame: At baseline and week 24

Population: The analysis was based on observed data.

ArmMeasureValue (MEAN)Dispersion
MinocyclineChange in Psychomotor Function Domain Z-Score0.07 z-scoreStandard Deviation 0.66
Matching PlaceboChange in Psychomotor Function Domain Z-Score0.15 z-scoreStandard Deviation 0.88
Comparison: The null hypothesis was that the 24 change of psychomotor function domain score in the minocycline group is the same as in the placebo group.p-value: 0.57295% CI: [-0.375, 0.209]Regression, Linear
Secondary

Change in Verbal Memory Domain Z-Score

The verbal memory domain score is the average of age and education adjusted z scores of Hopkins Verbal Learning Test- Revised, Learning and Delayed Recall. The outcome is the 24 week change of verbal memory domain z-scores (week 24-baseline).

Time frame: At baseline and week 24

Population: The analysis was based on observed data.

ArmMeasureValue (MEAN)Dispersion
MinocyclineChange in Verbal Memory Domain Z-Score0.18 z-scoreStandard Deviation 0.96
Matching PlaceboChange in Verbal Memory Domain Z-Score0.02 z-scoreStandard Deviation 1.1
Comparison: The null hypothesis was that the 24 week change of verbal memory domain score in the minocycline group was the same as the one in the placebo group.p-value: 0.48495% CI: [-0.266, 0.558]Regression, Linear
Secondary

Change of HIV Plasma RiboNucleic Acid (RNA) Viral Load

The original scale of HIV RNA viral load is between 30 copies/mL to infinitive. The minimum score of 30 is the lowest detectable value. The summary table categorized this continuous value to a dichotomous variable (\<30 copies/mL and \>= 30 copies/mL).

Time frame: At baseline and week 24

Population: The summary statistics were based on observed data. No statistical analysis was conducted.

ArmMeasureGroupValue (NUMBER)
MinocyclineChange of HIV Plasma RiboNucleic Acid (RNA) Viral Load>= 30 copies/mL at base, >= 30 at week 241 participants
MinocyclineChange of HIV Plasma RiboNucleic Acid (RNA) Viral Load>= 30 copies/mL at base, < 30 at week 240 participants
MinocyclineChange of HIV Plasma RiboNucleic Acid (RNA) Viral Load< 30 copies/mL at base, >= 30 at week 242 participants
MinocyclineChange of HIV Plasma RiboNucleic Acid (RNA) Viral Load< 30 copies/mL at base, < 30 at week 2417 participants
Matching PlaceboChange of HIV Plasma RiboNucleic Acid (RNA) Viral Load< 30 copies/mL at base, < 30 at week 2419 participants
Matching PlaceboChange of HIV Plasma RiboNucleic Acid (RNA) Viral Load>= 30 copies/mL at base, >= 30 at week 240 participants
Matching PlaceboChange of HIV Plasma RiboNucleic Acid (RNA) Viral Load< 30 copies/mL at base, >= 30 at week 240 participants
Matching PlaceboChange of HIV Plasma RiboNucleic Acid (RNA) Viral Load>= 30 copies/mL at base, < 30 at week 242 participants
Secondary

Changes in Alternate Frontal Systems Z-Score

The alternate frontal systems was defined as a mean of age and education adjusted z score of Interference task, and age, sex, education, and African-American ethnicity adjusted z score of Trail Making Part B. The outcome was the 24 week change in alternate frontal systems z-score (week 24-baseline).

Time frame: At baseline and week 24

Population: The analysis was based on observed data.

ArmMeasureValue (MEAN)Dispersion
MinocyclineChanges in Alternate Frontal Systems Z-Score0.03 z-scoreStandard Deviation 0.67
Matching PlaceboChanges in Alternate Frontal Systems Z-Score-0.07 z-scoreStandard Deviation 0.7
Comparison: The null hypothesis was the 24 week change of alternate frontal systems score in the minocycline group was the same as the one in the placebo group.p-value: 0.6995% CI: [-0.217, 0.327]Regression, Linear
Secondary

Changes in Alternate Psychomotor Function Z-Score

The alternate psychomotor function is defined as the mean of age, sex, education, and African-American ethnicity adjusted z scores of Trail Making Part A (TMA), and age and education adjusted z score of Symbol Digit (SYD). The outcome is the 24 week change in alternate psychomotor function z-score (week 24-baseline).

Time frame: At baseline and week 24

Population: The analysis was based on the observed data.

ArmMeasureValue (MEAN)Dispersion
MinocyclineChanges in Alternate Psychomotor Function Z-Score-0.03 z-scoreStandard Deviation 0.66
Matching PlaceboChanges in Alternate Psychomotor Function Z-Score0.05 z-scoreStandard Deviation 0.76
Comparison: The null hypothesis was that the 24 week change in alternate psychomotor function score in the minocycline group was the same as the one in the placebo group.p-value: 0.50695% CI: [-0.388, 0.193]Regression, Linear
Secondary

Changes in Alternate Verbal Memory Z-Score

The alternate verbal memory was defined as a mean of age and education adjusted z score of trials 1 to 3 and delayed recall tests. The outcome is the 24 week change in alternate verbal memory z-score (week 24-baseline).

Time frame: At baseline and week 24

Population: The analysis is based on observed data.

ArmMeasureValue (MEAN)Dispersion
MinocyclineChanges in Alternate Verbal Memory Z-Score0.18 z-scoreStandard Deviation 0.96
Matching PlaceboChanges in Alternate Verbal Memory Z-Score0.02 z-scoreStandard Deviation 1.1
Comparison: The null hypothesis was that the 24 week change in the alternate verbal memory score in the minocycline group was the same as the one in the placebo group.p-value: 0.48495% CI: [-0.266, 0.558]Regression, Linear
Secondary

Changes in Cluster of Differentiation 4 (CD4) Cell Counts (24 Weeks)

The outcome was the 24 week change in CD4 cell count (week 24-baseline).

Time frame: At baseline and weeks 24

Population: The analysis was based on observed data.

ArmMeasureValue (MEAN)Dispersion
MinocyclineChanges in Cluster of Differentiation 4 (CD4) Cell Counts (24 Weeks)24.10 cells/mm^3Standard Deviation 141.22
Matching PlaceboChanges in Cluster of Differentiation 4 (CD4) Cell Counts (24 Weeks)8.24 cells/mm^3Standard Deviation 143.02
Comparison: The null hypothesis was that the 24 week change in CD4 cell counts in the minocycline group was the same as the one in the placebo group.p-value: 0.57495% CI: [-48.26, 86.44]Regression, Linear
Secondary

Changes in Cluster of Differentiation 8 (CD8) Cell Counts (24 Weeks)

The outcome was the 24 week change of CD8 cell counts (week 24-baseline).

Time frame: At baseline and week 24

Population: The analysis was based on observed data.

ArmMeasureValue (MEAN)Dispersion
MinocyclineChanges in Cluster of Differentiation 8 (CD8) Cell Counts (24 Weeks)43.90 cells/mm^3Standard Deviation 244.51
Matching PlaceboChanges in Cluster of Differentiation 8 (CD8) Cell Counts (24 Weeks)0.00 cells/mm^3Standard Deviation 253.18
Comparison: The null hypothesis was that the 24 week change in CD8 cell count in the minocycline group was the same as the one in the placebo group.p-value: 0.50295% CI: [-79.12, 159.97]Regression, Linear
Secondary

Changes in Instrumental Activities of Daily Living Questionnaire

The Instrumental Activities of Daily Living (IADL) questionnaire is designed to learn more about how subjects are able to perform common tasks. There are 16 common tasks. For each task, if the score at the time of evaluation is worse than the best in the past, an indicator of 1 is given. Otherwise, the indicator is 0. The overall IADL score is a sum of 16 indicators divided by 16; therefore, the range is between 0 and 1 and the lower score is better. The 24-week change of IADL score was changed into a categorical variable (no change/worse vs. better) at week 24 compare to baseline.

Time frame: At baseline and week 24

Population: The analysis was based on observed data.

ArmMeasureGroupValue (NUMBER)
MinocyclineChanges in Instrumental Activities of Daily Living QuestionnaireNo Change/Worse30 participants
MinocyclineChanges in Instrumental Activities of Daily Living QuestionnaireBetter12 participants
Matching PlaceboChanges in Instrumental Activities of Daily Living QuestionnaireNo Change/Worse32 participants
Matching PlaceboChanges in Instrumental Activities of Daily Living QuestionnaireBetter11 participants
Comparison: The null hypothesis was that the proportion of participants who got better at week 24 compared to baseline in the minocycline group was the same as the one in the placebo group.p-value: 0.8995% CI: [0.405, 2.837]Regression, Logistic
Secondary

Changes in Markers of Oxidative Stress and Immune Activation (Unit=pg/mL Only)

Protein markers of oxidative stress (Protein carbonyls) and markers of immune activation (TNF-a, IL-6,CXCL8, Hepatocyte growth factor, Osteopontin, sFAS, sFAS ligand, and CXCL12). For all markers, the outcome is the 24 week change (week 24-baseline).

Time frame: At pre-entry and Week 24

Population: Participants who were willing to receive the lumber punctures at week 0 and 24.

ArmMeasureGroupValue (MEDIAN)
MinocyclineChanges in Markers of Oxidative Stress and Immune Activation (Unit=pg/mL Only)TNF-α (pg/mL)0.04 pg/mL
MinocyclineChanges in Markers of Oxidative Stress and Immune Activation (Unit=pg/mL Only)Osteopontin (pg/mL)-5208.94 pg/mL
MinocyclineChanges in Markers of Oxidative Stress and Immune Activation (Unit=pg/mL Only)CXCL8 (pg/mL)0.34 pg/mL
MinocyclineChanges in Markers of Oxidative Stress and Immune Activation (Unit=pg/mL Only)sFAS (pg/mL)0.68 pg/mL
MinocyclineChanges in Markers of Oxidative Stress and Immune Activation (Unit=pg/mL Only)IL-6 (pg/mL)-0.29 pg/mL
MinocyclineChanges in Markers of Oxidative Stress and Immune Activation (Unit=pg/mL Only)sFAS ligand (pg/mL)-0.27 pg/mL
MinocyclineChanges in Markers of Oxidative Stress and Immune Activation (Unit=pg/mL Only)Hepatocyte growth factor (pg/mL)16.09 pg/mL
MinocyclineChanges in Markers of Oxidative Stress and Immune Activation (Unit=pg/mL Only)CXCL12 (pg/mL)204.39 pg/mL
MinocyclineChanges in Markers of Oxidative Stress and Immune Activation (Unit=pg/mL Only)Protein carbonyls (pg/ml)4.0 pg/mL
Matching PlaceboChanges in Markers of Oxidative Stress and Immune Activation (Unit=pg/mL Only)CXCL12 (pg/mL)1,071.84 pg/mL
Matching PlaceboChanges in Markers of Oxidative Stress and Immune Activation (Unit=pg/mL Only)Protein carbonyls (pg/ml)13.2 pg/mL
Matching PlaceboChanges in Markers of Oxidative Stress and Immune Activation (Unit=pg/mL Only)TNF-α (pg/mL)0.14 pg/mL
Matching PlaceboChanges in Markers of Oxidative Stress and Immune Activation (Unit=pg/mL Only)IL-6 (pg/mL)0.95 pg/mL
Matching PlaceboChanges in Markers of Oxidative Stress and Immune Activation (Unit=pg/mL Only)CXCL8 (pg/mL)-6.13 pg/mL
Matching PlaceboChanges in Markers of Oxidative Stress and Immune Activation (Unit=pg/mL Only)Hepatocyte growth factor (pg/mL)90.48 pg/mL
Matching PlaceboChanges in Markers of Oxidative Stress and Immune Activation (Unit=pg/mL Only)Osteopontin (pg/mL)673.55 pg/mL
Matching PlaceboChanges in Markers of Oxidative Stress and Immune Activation (Unit=pg/mL Only)sFAS (pg/mL)134.1 pg/mL
Matching PlaceboChanges in Markers of Oxidative Stress and Immune Activation (Unit=pg/mL Only)sFAS ligand (pg/mL)0.11 pg/mL
Secondary

Changes in Markers of Oxidative Stress (Unit = Pixels/mm2 Only)

Protein marker of oxidative stress (Neurofilament heavy polypeptide). The outcome is the 24 week change (week 24-baseline).

Time frame: At pre-entry and Week 24

Population: Participants who were willing to receive the lumber punctures at week 0 and 24.

ArmMeasureValue (MEDIAN)
MinocyclineChanges in Markers of Oxidative Stress (Unit = Pixels/mm2 Only)-59.3 Pixels/mm^2
Matching PlaceboChanges in Markers of Oxidative Stress (Unit = Pixels/mm2 Only)-3.04 Pixels/mm^2
Secondary

Changes in Medication Management Test (Modified)

The medication management test (modified) is designed to assess participants' medication management ability and their own medications and management. It's the number of how many times participants correctly answered 16 questions. The score ranges between 0 and 16, and higher score indicates better medication management.

Time frame: At baseline and weeks 24

Population: The analysis was based on observed data.

ArmMeasureValue (MEAN)Dispersion
MinocyclineChanges in Medication Management Test (Modified)0.16 scores on a scaleStandard Deviation 1.57
Matching PlaceboChanges in Medication Management Test (Modified)0.48 scores on a scaleStandard Deviation 2
Comparison: The null hypothesis was that the 24 change of medication management test score in the minocycline group was the same as the one in the placebo group.p-value: 0.30495% CI: [-1.182, 0.373]Regression, Linear
Secondary

Changes in Neurotransmitter Levels (Unit = uM Only)

Neurotransmitter levels (Glutamate, Tryptophan, Anthranilic Acid, Quinolinic Acid, Kynurenin, and 3-Hydroxykynurenine). The outcome is the 24 week change (week 24-baseline).

Time frame: At pre-entry and Week 24

Population: Participants who were willing to receive the lumber punctures at week 0 and 24.

ArmMeasureGroupValue (MEDIAN)
MinocyclineChanges in Neurotransmitter Levels (Unit = uM Only)Glutamate (uM)5.09 uM
MinocyclineChanges in Neurotransmitter Levels (Unit = uM Only)Tryptophan (uM)-0.21 uM
MinocyclineChanges in Neurotransmitter Levels (Unit = uM Only)Anthranilic Acid (uM)0.0 uM
MinocyclineChanges in Neurotransmitter Levels (Unit = uM Only)Quinolinic Acid (uM)-0.55 uM
MinocyclineChanges in Neurotransmitter Levels (Unit = uM Only)Kynurenin (uM)6.85 uM
MinocyclineChanges in Neurotransmitter Levels (Unit = uM Only)3-Hydroxykynurenine (uM)-4.09 uM
Matching PlaceboChanges in Neurotransmitter Levels (Unit = uM Only)Kynurenin (uM)6.97 uM
Matching PlaceboChanges in Neurotransmitter Levels (Unit = uM Only)Glutamate (uM)-1.08 uM
Matching PlaceboChanges in Neurotransmitter Levels (Unit = uM Only)Quinolinic Acid (uM)0.0 uM
Matching PlaceboChanges in Neurotransmitter Levels (Unit = uM Only)Tryptophan (uM)0.07 uM
Matching PlaceboChanges in Neurotransmitter Levels (Unit = uM Only)3-Hydroxykynurenine (uM)-0.83 uM
Matching PlaceboChanges in Neurotransmitter Levels (Unit = uM Only)Anthranilic Acid (uM)0.0 uM
Secondary

Changes in Protein Markers of Oxidative Stress (Unit = Counts Per Second Only)

Protein marker of oxidative stress (Ceramides, Monohexosylceramides, Dihydro Glycosyl Galceramides, and Dihexosylceramides). For all markers, the outcome is the 24 week change (week 24-baseline).

Time frame: At pre-entry and Week 24

Population: Participants who were willing to receive the lumber punctures at week 0 and 24.

ArmMeasureGroupValue (MEDIAN)
MinocyclineChanges in Protein Markers of Oxidative Stress (Unit = Counts Per Second Only)Ceramides (counts per second)0.0007 counts per second
MinocyclineChanges in Protein Markers of Oxidative Stress (Unit = Counts Per Second Only)Monohexosylceramides (counts per second)0.0013 counts per second
MinocyclineChanges in Protein Markers of Oxidative Stress (Unit = Counts Per Second Only)Dihydro Glycosyl Galceramides (counts per second)0.0201 counts per second
MinocyclineChanges in Protein Markers of Oxidative Stress (Unit = Counts Per Second Only)Dihexosylceramides (counts per second)0.0005 counts per second
Matching PlaceboChanges in Protein Markers of Oxidative Stress (Unit = Counts Per Second Only)Dihexosylceramides (counts per second)-0.0043 counts per second
Matching PlaceboChanges in Protein Markers of Oxidative Stress (Unit = Counts Per Second Only)Ceramides (counts per second)-0.0051 counts per second
Matching PlaceboChanges in Protein Markers of Oxidative Stress (Unit = Counts Per Second Only)Dihydro Glycosyl Galceramides (counts per second)-0.0048 counts per second
Matching PlaceboChanges in Protein Markers of Oxidative Stress (Unit = Counts Per Second Only)Monohexosylceramides (counts per second)-0.0066 counts per second
Secondary

Number of Participants With Grade 2 or Higher Toxicity and/or Signs and Symptoms

Grade or higher means that adverse events were moderate, severe, or life-threatening, or death. Grade 2 or higher adverse events are lised in the Adverse Event section.

Time frame: Throughout study up to week 48

Population: The analysis includes all randomized participants. A total of 37 minocycline and 38 placebo participants reported Grade 2 or higher toxicity and/or signs and symptoms during 48 weeks.

ArmMeasureGroupValue (NUMBER)
MinocyclineNumber of Participants With Grade 2 or Higher Toxicity and/or Signs and Symptoms0 - 4 weeks29 participants with an event
MinocyclineNumber of Participants With Grade 2 or Higher Toxicity and/or Signs and Symptoms4.01 - 12 weeks5 participants with an event
MinocyclineNumber of Participants With Grade 2 or Higher Toxicity and/or Signs and Symptoms12.01 - 24 weeks2 participants with an event
MinocyclineNumber of Participants With Grade 2 or Higher Toxicity and/or Signs and Symptoms24.01 - 48 weeks1 participants with an event
Matching PlaceboNumber of Participants With Grade 2 or Higher Toxicity and/or Signs and Symptoms24.01 - 48 weeks2 participants with an event
Matching PlaceboNumber of Participants With Grade 2 or Higher Toxicity and/or Signs and Symptoms0 - 4 weeks32 participants with an event
Matching PlaceboNumber of Participants With Grade 2 or Higher Toxicity and/or Signs and Symptoms12.01 - 24 weeks1 participants with an event
Matching PlaceboNumber of Participants With Grade 2 or Higher Toxicity and/or Signs and Symptoms4.01 - 12 weeks3 participants with an event
Comparison: The null hypothesis was that the time to Grade 2 or higher toxicity and/or signs and symptoms in the minocycline group was the same as the one in the placebo group.p-value: 0.967Log Rank

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