Trial of Three Neonatal Antiretroviral Regimens for Prevention of Intrapartum HIV Transmission

Sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) (NIH)
Overall Status
Completed
CT.gov ID
NCT00099359
Collaborator
National Institute of Allergy and Infectious Diseases (NIAID) (NIH)
1,735
17
3
84
102.1
1.2

Study Details

Study Description

Brief Summary

Giving anti-HIV medications to babies born of HIV positive mothers right after birth can lower the babies' risk of contracting HIV. This study will assess the safety and efficacy of two different combinations of anti-HIV medications compared to a one drug standard regimen in preventing mother to baby transmission. The one drug standard treatment and two combinations to be studied are: 1) zidovudine, 2) zidovudine/nevirapine and 3) zidovudine/lamivudine/nelfinavir.

Condition or Disease Intervention/Treatment Phase
  • Drug: Zidovudine
  • Drug: Nevirapine (NVP)
  • Drug: Epivir (3TC)
  • Drug: Nelfinavir (NFV)
Phase 3

Detailed Description

Despite the notable reductions in perinatal transmission of HIV-1 with antiretroviral therapy and other interventions, perinatal transmission continues to occur at rates of 20-30% among pregnant women who are not identified as HIV-1-infected and/or are not provided with antiretroviral therapy. The optimum treatment strategy for prevention of transmission of HIV-1 to infants born to these women is unknown. No trials have evaluated the efficacy of neonatal antiretroviral therapy alone but observational data suggest benefit from zidovudine (ZDV) therapy given to the infant beginning within 48 hours of birth and continued for six weeks. This protocol will compare the safety and efficacy of three antiretroviral regimens administered in the neonatal period: Arm A- ZDV, Arm B- ZDV plus nevirapine (NVP), and Arm C- ZDV plus nelfinavir (NFV) and lamivudine (3TC). Two regimens were selected based on expected antiretroviral activity, pharmacokinetic data, and toxicity profiles. Standard of care (6 weeks of ZDV) alone will be compared to the 6 weeks of ZDV plus either 3 doses of NVP or 2 weeks of 3TC and NFV. Arm B (ZDV + NVP) is the regimen expected to provide the best profile when factors of efficacy, safety, cost, acceptability and convenience are considered. The comparison of Arms B and C is also of considerable interest since the 2-drug Arm B is easier to implement and less expensive than the triple drug Arm C. Although triple drug therapies have been recommended for post-exposure prophylaxis for needle-stick injuries in high-risk circumstances, it is unknown whether the triple drug arm will provide better efficacy than the 2-drug arm for post-exposure prophylaxis of the infant.

This open-label study is expected to accrue 1731 infants of women identified in labor as being HIV positive or who are HIV positive but have not received antiretroviral medication during the pregnancy. If eligible the infant will be randomized at birth to one of three aforementioned treatment arms. Medical history, social, demographic, physical exam, RNA and T- lymphocyte data are collected on the mother during the delivery visit. The infant will have a birth visit and then return for 1-week, 2-week, 4-week, 3-month and a final 6-month visit. Infant evaluations will include: a medical history and physical exam, DNA testing, CBC and liver function tests, cells for long-term storage and RNA/CD4/CD8 testing if HIV positive. The initial study drug doses will be given to the infant while in the hospital. Mothers will administer the infants' remaining treatment doses at home depending on ability.

Study Design

Study Type:
Interventional
Actual Enrollment :
1735 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
None (Open Label)
Primary Purpose:
Prevention
Official Title:
Phase III Randomized Trial of the Safety and Efficacy of Three Neonatal Antiretroviral Regimens for Prevention of Intrapartum HIV-1 Transmission
Study Start Date :
Feb 1, 2004
Actual Primary Completion Date :
Feb 1, 2011
Actual Study Completion Date :
Feb 1, 2011

Arms and Interventions

Arm Intervention/Treatment
Experimental: A

Standard of care ( Zidovudine only)

Drug: Zidovudine
Given for 6 weeks. 12mg PO BID if birthweight (BW) > 2000 grams 8 mg PO BID if BW < 2000 grams
Other Names:
  • Retrovir
  • Experimental: B

    Standard of care (Zidovudine) plus Nevirapine

    Drug: Nevirapine (NVP)
    Standard of Care (Zidovudine) plus NVP, first dose initiated within 48 hrs of birth, second dose 48 hrs (+ 4 hours) after the first dose, and third dose 96 hours (+ 4 hours) after the second dose : 12 mg PO per dose if BW > 2000 grams, 8 mg PO per dose if BW < 2000 grams
    Other Names:
  • Viramune
  • Experimental: C

    Standard of Care (Zidovudine) plus 2 weeks of Epivir and Nelfinavir

    Drug: Epivir (3TC)
    Stand of care (Zidovudine) plus 3TC, given for 2 weeks: 6 mg po bid if BW > 2000 grams 4 mg po bid if BW < 2000 grams AND NFV, given for 2 weeks: 200 mg po bid if BW > 3000 grams 150 mg po bid if BW > 2,000 - 3000 grams 100 mg PO BID if BW < 2000 grams
    Other Names:
  • Lamivudine
  • Drug: Nelfinavir (NFV)
    200 mg BID if birth weight (BW) > 3000 grams for 2 weeks;150 mg BID if BW > 2000-3000 grams for 2 weeks; 100 mg BID BW </= 2000 grams for 2 weeks
    Other Names:
  • Viracept
  • Outcome Measures

    Primary Outcome Measures

    1. Infant HIV Infection Status [3 months]

      Intrapartum HIV infection at 3 Months

    2. Participants With Serious Adverse Events [through age 6 months.]

      Serious Adverse Events by System Organ Class=Blood and lymphatic system disorders

    Secondary Outcome Measures

    1. Infant HIV-1 Infection Status [birth]

      In utero HIV-1 infection rate

    2. Participant Deaths [through age 6 months]

    3. Clinical Covariates of HIV-1 Infection [through age 3 months]

      Compare HIV-1 RNA levels; CD4+ lymphocyte counts; and rates of genotypic and phenotypic resistance among the three treatment regimens.

    4. 3TC and NFV Pharmacokinetics [through age 14 days]

      Descriptive study of 3TC and NFV pharmacokinetics during first two weeks of life using weight band dosing regimen in a subset of enrolled infants.

    5. Risk Factors for Perinatal HIV-1 Transmission [through age 3 months]

      Risk factors to be assessed include maternal HIV-1 RNA levels at delivery, maternal syphilis and other infections, obstetrical factors such as duration of membrane rupture, and adherence to neonatal medication.

    6. NVP Pharmacokinetics [14 days]

      Descriptive study of NVP pharmacokinetics during first two weeks of life using weight band dosing in a subset of enrolled infants.

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    N/A to 2 Days
    Sexes Eligible for Study:
    All
    Accepts Healthy Volunteers:
    Yes
    Inclusion Criteria:
    Infants who meet all of the following criteria are eligible for the study:
    • Mother known to be HIV-1-infected prior to labor or identified at the time of labor or <48 hours postpartum. HIV-1 infection for the purposes of enrollment into this study is defined as: (a) Single positive HIV-1 rapid test in mother or her infant; or (b) Historical documentation of a positive HIV-1 diagnostic test confirmed by repeat diagnostic testing for HIV-1 according to country guidelines in mother (written documentation of test results must be present in the medical record).

    • Maternal written informed consent for study participation.

    • Mother has not received any antiretroviral therapy during the current pregnancy prior to the onset of labor and delivery; women may have received intravenous or oral ZDV during labor. Women may have received any antiretroviral therapy in previous pregnancies for prevention of vertical HIV-1 transmission.

    • Infant is <48 hours old. Infant may have received up to 48 hours of ZDV as standard care before study enrollment.

    Exclusion Criteria:
    Infants who meet any of the following criteria will be excluded from the study:
    • Extreme prematurity (< 32 weeks of gestation).

    • Birth weight <1500 grams.

    • Presence of life-threatening conditions.

    • Inability to take oral medication throughout the first 48 hours of life (must be able to receive oral medication by age 48 hours).

    • Maternal inability to provide informed consent because of a lack of a conscious state, psychiatric conditions, or language barriers.

    • Mother received any antiretroviral therapy during labor and delivery other than intravenous or oral ZDV.

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 Miller Children's Hospital Long Beach California United States 90806
    2 University of FL Gainesville Florida United States 32610-0296
    3 University of FL-HSC Jacksonville Florida United States 32209
    4 University Medical and Dental School of NJ-Newark Campus Newark New Jersey United States 07103
    5 Texas Childrens Hospital Houston Texas United States 77030
    6 Hospital I. G. A. Dr. Diego Paroissien Buenos Aires Argentina
    7 Federal University of Minas Gerais (UFMG) Belo Horizonte MG Brazil 30130-100
    8 Universidade de Sao Paulo (USP) , MD São Paulo Ribeirão Preto Brazil 14024-250
    9 Hospital Fêmina S.A. Unidade Perinatal de Transmissão Vertical Porto Alegre Rio Grande do Sul Brazil 90430001
    10 Hospital Santa Casa (HSC) Porto Alegre Rio Grande do Sul Brazil 90850 530
    11 Hospital Nossa Senhora da Conceicao (GHC) Porto Alegre Rio Grande do Sul Brazil 91350-200
    12 Hospital dos Servidores do Estado (HSE) Rio de Janeiro Brazil 20221-903
    13 Hospital Geral de Novo Iguacu Rio de Janeiro Brazil 26030-380
    14 5088 - Universidade Federal de Sao Paulo (UFSP) São Paulo Brazil 04939-002
    15 San Juan Hospital San Juan Puerto Rico 00936-8344
    16 Tygerberg Hospital Cape Town South Africa
    17 Chris Hani Baragwanath Hospital Johannesburg South Africa

    Sponsors and Collaborators

    • Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
    • National Institute of Allergy and Infectious Diseases (NIAID)

    Investigators

    • Study Chair: Karin Nielsen, MD, University of California, Los Angeles

    Study Documents (Full-Text)

    None provided.

    More Information

    Additional Information:

    Publications

    None provided.
    Responsible Party:
    Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
    ClinicalTrials.gov Identifier:
    NCT00099359
    Other Study ID Numbers:
    • NICHD/HPTN 040 (P1043)
    First Posted:
    Dec 13, 2004
    Last Update Posted:
    Dec 4, 2012
    Last Verified:
    Feb 1, 2011
    Keywords provided by Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
    Additional relevant MeSH terms:

    Study Results

    Participant Flow

    Recruitment Details The first subject was enrolled on 02/27/2004 and the study ended 02/28/2011. A total of 17 sites in Brazil, South Africa, Argentina and the U.S. participated in the study.
    Pre-assignment Detail
    Arm/Group Title Arm A (ZDV Only) ARM B (ZDV + NVP) ARM C (ZDV + 3TC + NFV)
    Arm/Group Description Standard of care ( Zidovudine only). 12 mg PO BID if BW>2000 grams ; 8 mg PO BID if BW</= 2000 grams Standard of care (Zidovudine) plus Nevirapine (NVP) NVP, first dose initiated within 48 hrs of birth, second dose 48 hrs (+ 4 hours) after the first dose, and third dose 96 hours (+ 4 hours) after the second dose : 12 mg PO per dose if BW > 2000 grams, 8 mg PO per dose if BW < 2000 grams Standard of Care (Zidovudine) plus 2 weeks of Epivir (3TC) and Nelfinavir (NFV) 3TC, given for 2 weeks: 6 mg po bid if BW > 2000 grams 4 mg po bid if BW < 2000 grams AND NFV, given for 2 weeks: 200 mg po bid if BW > 3000 grams 150 mg po bid if BW > 2,000 - 3000 grams 100 mg PO BID if BW < 2000 grams
    Period Title: Overall Study
    STARTED 581 580 574
    COMPLETED 527 515 506
    NOT COMPLETED 54 65 68

    Baseline Characteristics

    Arm/Group Title Arm A (ZDV Only) ARM B (ZDV + NVP) ARM C (ZDV + 3TC + NFV) Total
    Arm/Group Description Standard of care ( Zidovudine only). 12 mg PO BID if BW>2000 grams ; 8 mg PO BID if BW</= 2000 grams Standard of care (Zidovudine) plus Nevirapine (NVP) NVP, first dose initiated within 48 hrs of birth, second dose 48 hrs (+ 4 hours) after the first dose, and third dose 96 hours (+ 4 hours) after the second dose : 12 mg PO per dose if BW > 2000 grams, 8 mg PO per dose if BW < 2000 grams Standard of Care (Zidovudine) plus 2 weeks of Epivir (3TC) and Nelfinavir (NFV) 3TC, given for 2 weeks: 6 mg po bid if BW > 2000 grams 4 mg po bid if BW < 2000 grams AND NFV, given for 2 weeks: 200 mg po bid if BW > 3000 grams 150 mg po bid if BW > 2,000 - 3000 grams 100 mg PO BID if BW < 2000 grams Total of all reporting groups
    Overall Participants 581 580 574 1735
    Age (weeks) [Mean (Standard Deviation) ]
    Gestational Age in Weeks
    39
    (1.7)
    39
    (1.5)
    39
    (1.7)
    39
    (1.7)
    Sex: Female, Male (Count of Participants)
    Female
    298
    51.3%
    303
    52.2%
    281
    49%
    882
    50.8%
    Male
    283
    48.7%
    277
    47.8%
    293
    51%
    853
    49.2%
    Region of Enrollment (participants) [Number]
    United States
    4
    0.7%
    4
    0.7%
    4
    0.7%
    12
    0.7%
    Puerto Rico
    0
    0%
    1
    0.2%
    1
    0.2%
    2
    0.1%
    Argentina
    10
    1.7%
    6
    1%
    11
    1.9%
    27
    1.6%
    Brazil
    409
    70.4%
    408
    70.3%
    402
    70%
    1219
    70.3%
    South Africa
    158
    27.2%
    161
    27.8%
    156
    27.2%
    475
    27.4%

    Outcome Measures

    1. Primary Outcome
    Title Infant HIV Infection Status
    Description Intrapartum HIV infection at 3 Months
    Time Frame 3 months

    Outcome Measure Data

    Analysis Population Description
    All infants with HIV-1 test results except infants infected at birth (i.e. in utero infections) were included in these analysis.
    Arm/Group Title ARM A (ZDV - Standard of Care) ARM B (ZDV + NVP) ARM C (ZDV +3TC+NFV)
    Arm/Group Description ZDV (standard of care), given for 6 weeks: 12 mg PO BID if birthweight (BW) > 2000 grams 8 mg PO BID if BW < 2000 grams plus NVP, first dose initiated within 48 hrs of birth, second dose 48 hrs (+ 4 hours) after the first dose, and third dose 96 hours (+ 4 hours) after the second dose : 12 mg PO per dose if BW > 2000 grams, 8 mg PO per dose if BW < 2000 grams ZDV (standard of care) plus 3TC, given for 2 weeks: 6 mg po bid if BW > 2000 grams 4 mg po bid if BW < 2000 grams AND NFV, given for 2 weeks: 200 mg po bid if BW > 3000 grams 150 mg po bid if BW > 2,000 - 3000 grams 100 mg PO BID if BW < 2000 grams
    Measure Participants 566 562 556
    Number [participants]
    24
    4.1%
    11
    1.9%
    12
    2.1%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection ARM A (ZDV - Standard of Care), ARM B (ZDV + NVP), ARM C (ZDV +3TC+NFV)
    Comments
    Type of Statistical Test Superiority or Other
    Comments
    Statistical Test of Hypothesis p-Value .046
    Comments Overall comparison of 3 KM curves using an extension of the M-H test was performed. Results indicated a significant difference therefore a 2nd stage analysis was done to compare each pair of transmission rates, using 2-sample Mantel-Haenzel tests.
    Method multiple comparison
    Comments Hochberg's modified Bonferroni method was used to adjust the significance level for comparisons between arms.
    2. Primary Outcome
    Title Participants With Serious Adverse Events
    Description Serious Adverse Events by System Organ Class=Blood and lymphatic system disorders
    Time Frame through age 6 months.

    Outcome Measure Data

    Analysis Population Description
    [Not Specified]
    Arm/Group Title ARM A (ZDV Only) ARM B (ZDV + NVP) ARM C (ZDV + 3TC/NFV)
    Arm/Group Description ZDV only ZDV + NVP ZDV + 3TC/NFV
    Measure Participants 566 562 556
    Number [participants]
    86
    14.8%
    59
    10.2%
    110
    19.2%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection ARM A (ZDV - Standard of Care), ARM B (ZDV + NVP), ARM C (ZDV +3TC+NFV)
    Comments
    Type of Statistical Test Superiority or Other
    Comments
    Statistical Test of Hypothesis p-Value .0001
    Comments
    Method Chi-squared
    Comments
    3. Secondary Outcome
    Title Infant HIV-1 Infection Status
    Description In utero HIV-1 infection rate
    Time Frame birth

    Outcome Measure Data

    Analysis Population Description
    [Not Specified]
    Arm/Group Title Arm A (ZDV Only) ARM B (ZDV + NVP) ARM C (ZDV + 3TC + NFV)
    Arm/Group Description Standard of care ( Zidovudine only). 12 mg PO BID if BW>2000 grams ; 8 mg PO BID if BW</= 2000 grams Standard of care (Zidovudine) plus Nevirapine (NVP) NVP, first dose initiated within 48 hrs of birth, second dose 48 hrs (+ 4 hours) after the first dose, and third dose 96 hours (+ 4 hours) after the second dose : 12 mg PO per dose if BW > 2000 grams, 8 mg PO per dose if BW < 2000 grams Standard of Care (Zidovudine) plus 2 weeks of Epivir (3TC) and Nelfinavir (NFV) 3TC, given for 2 weeks: 6 mg po bid if BW > 2000 grams 4 mg po bid if BW < 2000 grams AND NFV, given for 2 weeks: 200 mg po bid if BW > 3000 grams 150 mg po bid if BW > 2,000 - 3000 grams 100 mg PO BID if BW < 2000 grams
    Measure Participants 581 580 574
    Number [participants]
    37
    6.4%
    28
    4.8%
    28
    4.9%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection ARM A (ZDV - Standard of Care), ARM B (ZDV + NVP), ARM C (ZDV +3TC+NFV)
    Comments
    Type of Statistical Test Superiority or Other
    Comments
    Statistical Test of Hypothesis p-Value .2432
    Comments
    Method multiple comparison
    Comments
    4. Secondary Outcome
    Title Participant Deaths
    Description
    Time Frame through age 6 months

    Outcome Measure Data

    Analysis Population Description
    [Not Specified]
    Arm/Group Title Arm A (ZDV Only) ARM B (ZDV + NVP) ARM C (ZDV + 3TC + NFV)
    Arm/Group Description Standard of care ( Zidovudine only). 12 mg PO BID if BW>2000 grams ; 8 mg PO BID if BW</= 2000 grams Standard of care (Zidovudine) plus Nevirapine (NVP) NVP, first dose initiated within 48 hrs of birth, second dose 48 hrs (+ 4 hours) after the first dose, and third dose 96 hours (+ 4 hours) after the second dose : 12 mg PO per dose if BW > 2000 grams, 8 mg PO per dose if BW < 2000 grams Standard of Care (Zidovudine) plus 2 weeks of Epivir (3TC) and Nelfinavir (NFV) 3TC, given for 2 weeks: 6 mg po bid if BW > 2000 grams 4 mg po bid if BW < 2000 grams AND NFV, given for 2 weeks: 200 mg po bid if BW > 3000 grams 150 mg po bid if BW > 2,000 - 3000 grams 100 mg PO BID if BW < 2000 grams
    Measure Participants 581 580 574
    Number [participants]
    11
    1.9%
    15
    2.6%
    17
    3%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection ARM A (ZDV - Standard of Care), ARM B (ZDV + NVP), ARM C (ZDV +3TC+NFV)
    Comments
    Type of Statistical Test Superiority or Other
    Comments
    Statistical Test of Hypothesis p-Value 0.49
    Comments
    Method Chi-squared
    Comments
    5. Secondary Outcome
    Title Clinical Covariates of HIV-1 Infection
    Description Compare HIV-1 RNA levels; CD4+ lymphocyte counts; and rates of genotypic and phenotypic resistance among the three treatment regimens.
    Time Frame through age 3 months

    Outcome Measure Data

    Analysis Population Description
    [Not Specified]
    Arm/Group Title
    Arm/Group Description
    6. Secondary Outcome
    Title 3TC and NFV Pharmacokinetics
    Description Descriptive study of 3TC and NFV pharmacokinetics during first two weeks of life using weight band dosing regimen in a subset of enrolled infants.
    Time Frame through age 14 days

    Outcome Measure Data

    Analysis Population Description
    This was a descriptive study. A total of 26 infants were analyzed with 14 at age 4-7 days and 12 at 10-14 days.Plasma samples were collected prior to first AM dose and then at 1,2,4,8 and 12 hours.
    Arm/Group Title ARM C (ZDV + 3TC/NFV)
    Arm/Group Description Standard ZDV for 6 weeks combined with 2 weeks of 3TC and NFV. NFV and 3TC plasma concentrations were measured by validated HPLC assays with lower detection limit of 0.04 micrograms/mL.
    Measure Participants 26
    (NFV-AUC-12h) 4-7 day
    20.7
    (46.57)
    (NFV-AUC-12h) 10-14 day
    25.5
    (13.10)
    (3TC-AUC-12 h) 4-7 day
    4.0
    (4.50)
    (3TC-AUC-12h) 10-14 day
    7.9
    (4.12)
    7. Secondary Outcome
    Title Risk Factors for Perinatal HIV-1 Transmission
    Description Risk factors to be assessed include maternal HIV-1 RNA levels at delivery, maternal syphilis and other infections, obstetrical factors such as duration of membrane rupture, and adherence to neonatal medication.
    Time Frame through age 3 months

    Outcome Measure Data

    Analysis Population Description
    All available demographic and clinical variables were tested for association with transmission rate. All variables that were significant at p ≤ 0.20 were included in the multivariable regression model. Variables that were not significant were then removed from the model. The backward elimination method was used to select the final model.
    Arm/Group Title Infected Uninfected
    Arm/Group Description Infants infected after birth Infants uninfected after birth
    Measure Participants 47 1544
    Treatment Arm C (ZDV+3TC/NFV)
    12
    2.1%
    516
    89%
    Treatment Arm B (ZDV+NFV)
    11
    1.9%
    523
    90.2%
    Treatment Arm A (ZDV only)
    24
    4.1%
    505
    87.1%
    Illegal Substance Abuse during pregnancy
    7
    1.2%
    130
    22.4%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection ARM A (ZDV - Standard of Care), ARM B (ZDV + NVP)
    Comments
    Type of Statistical Test Superiority or Other
    Comments
    Statistical Test of Hypothesis p-Value 0.05
    Comments
    Method Regression, Logistic
    Comments Adjusted Odds ratio for treatment arm C (ZDV+3TC/NFV) association with Intrapartum Infection Status with Treatment Arm A (ZDV only) as reference group
    Method of Estimation Estimation Parameter Odds Ratio (OR)
    Estimated Value 0.50
    Confidence Interval (2-Sided) 95%
    0.24 to 1.01
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 2
    Statistical Analysis Overview Comparison Group Selection ARM A (ZDV - Standard of Care), ARM B (ZDV + NVP)
    Comments
    Type of Statistical Test Superiority or Other
    Comments
    Statistical Test of Hypothesis p-Value 0.01
    Comments Adjusted odds ratio for association of treatment arm B (ZDV+NVP) with intrapartum infection status with Treatment Arm A (ZDV only) as reference.
    Method Regression, Logistic
    Comments
    Method of Estimation Estimation Parameter Odds Ratio (OR)
    Estimated Value 0.39
    Confidence Interval (2-Sided) 95%
    0.19 to 0.82
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 3
    Statistical Analysis Overview Comparison Group Selection ARM A (ZDV - Standard of Care), ARM B (ZDV + NVP)
    Comments
    Type of Statistical Test Superiority or Other
    Comments
    Statistical Test of Hypothesis p-Value 0.03
    Comments
    Method Regression, Logistic
    Comments Adjusted odds ratio for association of illegal substance use during pregnancy and intrapartum HIV infection status with "NO" being reference group.
    Method of Estimation Estimation Parameter Odds Ratio (OR)
    Estimated Value 2.51
    Confidence Interval (2-Sided) 95%
    1.08 to 5.86
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 4
    Statistical Analysis Overview Comparison Group Selection ARM A (ZDV - Standard of Care), ARM B (ZDV + NVP)
    Comments
    Type of Statistical Test Superiority or Other
    Comments
    Statistical Test of Hypothesis p-Value <0.0001
    Comments Adjusted odds ratio for the association of continuous log10 viral load with intrapartum infection status
    Method Regression, Logistic
    Comments
    Method of Estimation Estimation Parameter Odds Ratio (OR)
    Estimated Value 2.28
    Confidence Interval (2-Sided) 95%
    1.56 to 3.35
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    8. Secondary Outcome
    Title NVP Pharmacokinetics
    Description Descriptive study of NVP pharmacokinetics during first two weeks of life using weight band dosing in a subset of enrolled infants.
    Time Frame 14 days

    Outcome Measure Data

    Analysis Population Description
    [Not Specified]
    Arm/Group Title ARM B (ZDV + NVP)
    Arm/Group Description NVP concentrations were measured in 14 infants immediately before the 3rd dose, 4 hours post dose, 1 day post dose, 3-5 days post dose and 7 days post dose.
    Measure Participants 14
    NVP conc prior to 3rd dose
    362
    NVP peak conc (Cmax) post 3rd dose
    2286
    NVP conc 3-5 day post 3rd dose
    459
    NVP conc 7 day post 3rd dose
    76

    Adverse Events

    Time Frame through 6 months
    Adverse Event Reporting Description AE data collected from study entry to off study period
    Arm/Group Title ARM A (ZDV Alone) ARM B (ZDV + NVP) ARM C (ZDV + 3TC/NFV)
    Arm/Group Description ZDV, given for 6 weeks: 12 mg PO BID if birthweight (BW) > 2000 grams 8 mg PO BID if BW < 2000 grams ZDV, given for 6 weeks: 12 mg PO BID if birthweight (BW) > 2000 grams 8 mg PO BID if BW < 2000 grams AND NVP, first dose initiated within 48 hrs of birth, second dose 48 hrs (+ 4 hours) after the first dose, and third dose 96 hours (+ 4 hours) after the second dose : 12 mg PO per dose if BW > 2000 grams, 8 mg PO per dose if BW < 2000 grams ZDV, given for 6 weeks: 12 mg PO BID if birthweight (BW) > 2000 grams 8 mg PO BID if BW < 2000 grams AND 3TC, given for 2 weeks: 6 mg po bid if BW > 2000 grams 4 mg po bid if BW < 2000 grams AND NFV, given for 2 weeks: 200 mg po bid if BW > 3000 grams 150 mg po bid if BW > 2,000 - 3000 grams 100 mg PO BID if BW < 2000 grams
    All Cause Mortality
    ARM A (ZDV Alone) ARM B (ZDV + NVP) ARM C (ZDV + 3TC/NFV)
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total / (NaN) / (NaN) / (NaN)
    Serious Adverse Events
    ARM A (ZDV Alone) ARM B (ZDV + NVP) ARM C (ZDV + 3TC/NFV)
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 219/581 (37.7%) 211/580 (36.4%) 252/574 (43.9%)
    Blood and lymphatic system disorders
    Anaemia Nos 48/581 (8.3%) 51 28/580 (4.8%) 32 39/574 (6.8%) 46
    Axillary Lymphadenitis 1/581 (0.2%) 1 0/580 (0%) 0 0/574 (0%) 0
    Disseminated Intravascular Coagulation 1/581 (0.2%) 1 0/580 (0%) 0 0/574 (0%) 0
    Isoimmune Haemolytic Disease 0/581 (0%) 0 1/580 (0.2%) 3 0/574 (0%) 0
    Leukocytosis 0/581 (0%) 0 0/580 (0%) 0 1/574 (0.2%) 1
    Neutropenia 33/581 (5.7%) 34 33/580 (5.7%) 40 71/574 (12.4%) 83
    Polycythaemia Nos 0/581 (0%) 0 0/580 (0%) 0 1/574 (0.2%) 1
    Thrombocythaemia 3/581 (0.5%) 3 0/580 (0%) 0 1/574 (0.2%) 1
    Thrombocytopenia 5/581 (0.9%) 5 4/580 (0.7%) 4 9/574 (1.6%) 10
    Cardiac disorders
    Cardio-Respiratory Arrest 0/581 (0%) 0 1/580 (0.2%) 1 0/574 (0%) 0
    Cyanosis Nos 0/581 (0%) 0 0/580 (0%) 0 1/574 (0.2%) 1
    Pulmonary Valve Stenosis 1/581 (0.2%) 1 2/580 (0.3%) 2 2/574 (0.3%) 2
    Tachycardia Nos 1/581 (0.2%) 1 0/580 (0%) 0 0/574 (0%) 0
    Tricuspid Valve Incompetence 0/581 (0%) 0 0/580 (0%) 0 1/574 (0.2%) 1
    Cardiac Disorder Nos 0/581 (0%) 0 1/580 (0.2%) 1 0/574 (0%) 0
    Cardiac Failure Nos 0/581 (0%) 0 1/580 (0.2%) 1 0/574 (0%) 0
    Congenital Cardiac Septal Defect Nos 0/581 (0%) 0 1/580 (0.2%) 1 0/574 (0%) 0
    Congenital, familial and genetic disorders
    Congenital Atrial Septal Defect 5/581 (0.9%) 5 4/580 (0.7%) 4 4/574 (0.7%) 4
    Congenital Choroid Plexus Cyst 0/581 (0%) 0 1/580 (0.2%) 1 0/574 (0%) 0
    Congenital Clubfoot 0/581 (0%) 0 1/580 (0.2%) 1 1/574 (0.2%) 1
    Congenital Cytomegalovirus Infection 0/581 (0%) 0 0/580 (0%) 0 1/574 (0.2%) 1
    Congenital Infection Nos 0/581 (0%) 0 0/580 (0%) 0 1/574 (0.2%) 1
    Congenital Macrocephaly 0/581 (0%) 0 1/580 (0.2%) 1 0/574 (0%) 0
    Congenital Syphilis 47/581 (8.1%) 47 52/580 (9%) 52 42/574 (7.3%) 43
    Congenital Toxoplasmosis 1/581 (0.2%) 1 0/580 (0%) 0 1/574 (0.2%) 1
    Congenital Ventricular Septal Defect 1/581 (0.2%) 1 0/580 (0%) 0 2/574 (0.3%) 2
    Foetal Alcohol Syndrome 1/581 (0.2%) 1 0/580 (0%) 0 0/574 (0%) 0
    Genitalia External Ambiguous 0/581 (0%) 0 0/580 (0%) 0 1/574 (0.2%) 1
    Meningomyelocele 0/581 (0%) 0 1/580 (0.2%) 1 0/574 (0%) 0
    Patent Ductus Arteriosus 0/581 (0%) 0 2/580 (0.3%) 2 1/574 (0.2%) 1
    Retinoblastoma Nos 1/581 (0.2%) 1 0/580 (0%) 0 0/574 (0%) 0
    Trisomy 21 1/581 (0.2%) 1 1/580 (0.2%) 1 1/574 (0.2%) 1
    Urethral Valves 0/581 (0%) 0 1/580 (0.2%) 1 0/574 (0%) 0
    Eye disorders
    Neonatal Conjunctivitis Nos 0/581 (0%) 0 1/580 (0.2%) 1 0/574 (0%) 0
    Gastrointestinal disorders
    Acquired Pyloric Stenosis 0/581 (0%) 0 0/580 (0%) 0 1/574 (0.2%) 1
    Constipation 1/581 (0.2%) 1 0/580 (0%) 0 0/574 (0%) 0
    Diarrhoea Nos 4/581 (0.7%) 4 4/580 (0.7%) 4 6/574 (1%) 6
    Gastrooesophageal Reflux Disease 2/581 (0.3%) 2 1/580 (0.2%) 1 3/574 (0.5%) 3
    Haematochezia 0/581 (0%) 0 0/580 (0%) 0 1/574 (0.2%) 1
    Ileus 0/581 (0%) 0 0/580 (0%) 0 1/574 (0.2%) 1
    Intestinal Obstruction Nos 0/581 (0%) 0 0/580 (0%) 0 1/574 (0.2%) 1
    Intestinal Perforation Nos 0/581 (0%) 0 0/580 (0%) 0 1/574 (0.2%) 1
    Vomiting Nos 0/581 (0%) 0 1/580 (0.2%) 1 2/574 (0.3%) 2
    General disorders
    Drug Withdrawal Syndrome Neonatal 1/581 (0.2%) 1 1/580 (0.2%) 1 0/574 (0%) 0
    Multi-Organ Failure 1/581 (0.2%) 1 1/580 (0.2%) 1 0/574 (0%) 0
    Pyrexia 5/581 (0.9%) 5 5/580 (0.9%) 5 1/574 (0.2%) 1
    Sudden Infant Death Syndrome 1/581 (0.2%) 1 2/580 (0.3%) 2 5/574 (0.9%) 5
    Hepatobiliary disorders
    Hyperbilirubinaemia 2/581 (0.3%) 2 1/580 (0.2%) 1 1/574 (0.2%) 1
    Jaundice Nos 10/581 (1.7%) 10 3/580 (0.5%) 3 2/574 (0.3%) 2
    Infections and infestations
    Abscess Nos 0/581 (0%) 0 0/580 (0%) 0 1/574 (0.2%) 1
    Arthritis Bacterial 0/581 (0%) 0 0/580 (0%) 0 1/574 (0.2%) 1
    Breast Abscess 0/581 (0%) 0 1/580 (0.2%) 1 0/574 (0%) 0
    Bronchiolitis 13/581 (2.2%) 14 28/580 (4.8%) 30 15/574 (2.6%) 17
    Bronchitis Acute Nos 0/581 (0%) 0 1/580 (0.2%) 1 0/574 (0%) 0
    Bronchopneumonia Nos 3/581 (0.5%) 3 9/580 (1.6%) 9 8/574 (1.4%) 9
    Cellulitis 1/581 (0.2%) 1 0/580 (0%) 0 1/574 (0.2%) 1
    Cellulitis Gangrenous 0/581 (0%) 0 0/580 (0%) 0 1/574 (0.2%) 1
    Conjunctivitis Infective 1/581 (0.2%) 1 0/580 (0%) 0 0/574 (0%) 0
    Febrile Infection 0/581 (0%) 0 0/580 (0%) 0 1/574 (0.2%) 1
    Gastroenteritis Nos 21/581 (3.6%) 24 19/580 (3.3%) 21 16/574 (2.8%) 18
    Gastrointestinal Infection Nos 0/581 (0%) 0 0/580 (0%) 0 1/574 (0.2%) 1
    Impetigo Nos 0/581 (0%) 0 1/580 (0.2%) 1 2/574 (0.3%) 2
    Lobar Pneumonia Nos 2/581 (0.3%) 2 0/580 (0%) 0 0/574 (0%) 0
    Lower Respiratory Tract Infection Nos 3/581 (0.5%) 3 2/580 (0.3%) 2 0/574 (0%) 0
    Mastitis 1/581 (0.2%) 1 0/580 (0%) 0 0/574 (0%) 0
    Meningitis 1/581 (0.2%) 1 1/580 (0.2%) 1 1/574 (0.2%) 1
    Meningitis Pneumococcal 0/581 (0%) 0 0/580 (0%) 0 1/574 (0.2%) 1
    Neonatal Infection Nos 5/581 (0.9%) 5 1/580 (0.2%) 1 2/574 (0.3%) 2
    Omphalitis 0/581 (0%) 0 1/580 (0.2%) 1 0/574 (0%) 0
    Oral Candidiasis 3/581 (0.5%) 3 1/580 (0.2%) 1 2/574 (0.3%) 2
    Otitis Media Acute Nos 2/581 (0.3%) 2 1/580 (0.2%) 1 0/574 (0%) 0
    Parainfluenzae Virus Infection Nos 0/581 (0%) 0 1/580 (0.2%) 1 0/574 (0%) 0
    Periorbital Cellulitis 1/581 (0.2%) 1 0/580 (0%) 0 0/574 (0%) 0
    Pertussis 0/581 (0%) 0 0/580 (0%) 0 1/574 (0.2%) 1
    Pneumocystis Carinii Infection 1/581 (0.2%) 1 0/580 (0%) 0 0/574 (0%) 0
    Pneumocystis Carinii Pneumonia 3/581 (0.5%) 3 0/580 (0%) 0 0/574 (0%) 0
    Pneumonia Nos 22/581 (3.8%) 23 17/580 (2.9%) 17 18/574 (3.1%) 19
    Pulmonary Tuberculosis 1/581 (0.2%) 1 2/580 (0.3%) 2 0/574 (0%) 0
    Respiratory Syncytial Virus Infection Nos 1/581 (0.2%) 1 0/580 (0%) 0 0/574 (0%) 0
    Respiratory Tract Infection Nos 2/581 (0.3%) 2 4/580 (0.7%) 4 2/574 (0.3%) 2
    Scabies Infestation 1/581 (0.2%) 1 0/580 (0%) 0 0/574 (0%) 0
    Sepsis Neonatal 5/581 (0.9%) 5 3/580 (0.5%) 3 4/574 (0.7%) 4
    Sepsis Nos 21/581 (3.6%) 21 16/580 (2.8%) 18 23/574 (4%) 24
    Septic Shock 0/581 (0%) 0 1/580 (0.2%) 1 0/574 (0%) 0
    Tuberculosis Nos 1/581 (0.2%) 1 0/580 (0%) 0 0/574 (0%) 0
    Umbilical Cord Sepsis Nos 1/581 (0.2%) 1 0/580 (0%) 0 0/574 (0%) 0
    Upper Respiratory Tract Infection Nos 0/581 (0%) 0 2/580 (0.3%) 2 1/574 (0.2%) 1
    Urinary Tract Infection Nos 0/581 (0%) 0 4/580 (0.7%) 4 3/574 (0.5%) 3
    Varicella 0/581 (0%) 0 0/580 (0%) 0 1/574 (0.2%) 1
    Injury, poisoning and procedural complications
    Clavicle Fracture 0/581 (0%) 0 0/580 (0%) 0 1/574 (0.2%) 1
    Fall 0/581 (0%) 0 0/580 (0%) 0 1/574 (0.2%) 1
    Femur Fracture 0/581 (0%) 0 2/580 (0.3%) 2 0/574 (0%) 0
    Head Injury 0/581 (0%) 0 0/580 (0%) 0 1/574 (0.2%) 1
    Hypothermia 0/581 (0%) 0 1/580 (0.2%) 1 0/574 (0%) 0
    Investigations
    Acoustic Stimulation Tests Abnormal 0/581 (0%) 0 1/580 (0.2%) 1 0/574 (0%) 0
    Alanine Aminotransferase Increased 12/581 (2.1%) 13 7/580 (1.2%) 8 5/574 (0.9%) 6
    Aspartate Aminotransferase Increased 14/581 (2.4%) 15 7/580 (1.2%) 8 11/574 (1.9%) 13
    Blood Calcium Increased 0/581 (0%) 0 0/580 (0%) 0 1/574 (0.2%) 1
    Blood Creatinine Increased 0/581 (0%) 0 1/580 (0.2%) 1 0/574 (0%) 0
    Blood Potassium Increased 0/581 (0%) 0 0/580 (0%) 0 2/574 (0.3%) 2
    Blood Urea Increased 0/581 (0%) 0 0/580 (0%) 0 1/574 (0.2%) 1
    Cardiac Murmur Nos 0/581 (0%) 0 0/580 (0%) 0 1/574 (0.2%) 1
    General Physical Condition Abnormal 1/581 (0.2%) 1 0/580 (0%) 0 0/574 (0%) 0
    Weight Decreased 1/581 (0.2%) 1 0/580 (0%) 0 0/574 (0%) 0
    Metabolism and nutrition disorders
    Dehydration 8/581 (1.4%) 8 2/580 (0.3%) 2 3/574 (0.5%) 3
    Electrolyte Imbalance 0/581 (0%) 0 0/580 (0%) 0 1/574 (0.2%) 1
    Failure To Thrive 0/581 (0%) 0 0/580 (0%) 0 2/574 (0.3%) 2
    Feeding Problem In Newborn 1/581 (0.2%) 1 0/580 (0%) 0 0/574 (0%) 0
    General Nutrition Disorder 0/581 (0%) 0 0/580 (0%) 0 1/574 (0.2%) 1
    Hyperglycaemia Nos 0/581 (0%) 0 2/580 (0.3%) 2 0/574 (0%) 0
    Hyperkalaemia 1/581 (0.2%) 1 0/580 (0%) 0 0/574 (0%) 0
    Hypernatraemia 3/581 (0.5%) 3 5/580 (0.9%) 5 2/574 (0.3%) 2
    Hypocalcaemia 0/581 (0%) 0 0/580 (0%) 0 1/574 (0.2%) 1
    Hypoglycaemia Nos 2/581 (0.3%) 2 1/580 (0.2%) 1 2/574 (0.3%) 2
    Hypokalaemia 0/581 (0%) 0 1/580 (0.2%) 1 0/574 (0%) 0
    Hyponatraemia 1/581 (0.2%) 1 1/580 (0.2%) 1 1/574 (0.2%) 1
    Malnutrition Nos 1/581 (0.2%) 1 1/580 (0.2%) 1 0/574 (0%) 0
    Marasmus 0/581 (0%) 0 0/580 (0%) 0 1/574 (0.2%) 1
    Metabolic Acidosis Nos 1/581 (0.2%) 1 1/580 (0.2%) 1 1/574 (0.2%) 1
    Underweight 0/581 (0%) 0 2/580 (0.3%) 2 0/574 (0%) 0
    Neoplasms benign, malignant and unspecified (incl cysts and polyps)
    Tongue Neoplasm Nos 0/581 (0%) 0 0/580 (0%) 0 1/574 (0.2%) 1
    Nervous system disorders
    Cerebral Thrombosis Nos 0/581 (0%) 0 1/580 (0.2%) 1 0/574 (0%) 0
    Convulsions Nos 0/581 (0%) 0 1/580 (0.2%) 1 2/574 (0.3%) 2
    Encephalitis Nos 1/581 (0.2%) 1 1/580 (0.2%) 1 0/574 (0%) 0
    Hydrocephalus 1/581 (0.2%) 2 1/580 (0.2%) 1 0/574 (0%) 0
    Poor Sucking Reflex 2/581 (0.3%) 2 1/580 (0.2%) 1 0/574 (0%) 0
    Visual Field Defect Nos 1/581 (0.2%) 1 0/580 (0%) 0 0/574 (0%) 0
    Pregnancy, puerperium and perinatal conditions
    Jaundice Neonatal 10/581 (1.7%) 10 3/580 (0.5%) 3 6/574 (1%) 6
    Premature Baby 5/581 (0.9%) 5 6/580 (1%) 6 10/574 (1.7%) 10
    Small For Dates Baby 3/581 (0.5%) 3 3/580 (0.5%) 3 9/574 (1.6%) 9
    Renal and urinary disorders
    Renal Failure Nos 1/581 (0.2%) 1 1/580 (0.2%) 1 1/574 (0.2%) 1
    Urinary Retention 0/581 (0%) 0 1/580 (0.2%) 2 0/574 (0%) 0
    Respiratory, thoracic and mediastinal disorders
    Apnoea 1/581 (0.2%) 1 0/580 (0%) 0 0/574 (0%) 0
    Asphyxia 0/581 (0%) 0 0/580 (0%) 0 1/574 (0.2%) 1
    Asthma Nos 1/581 (0.2%) 1 0/580 (0%) 0 0/574 (0%) 0
    Bronchitis Nos 1/581 (0.2%) 1 1/580 (0.2%) 1 0/574 (0%) 0
    Bronchospasm Nos 1/581 (0.2%) 1 0/580 (0%) 0 0/574 (0%) 0
    Cough 0/581 (0%) 0 1/580 (0.2%) 1 1/574 (0.2%) 1
    Cyanosis Neonatal 0/581 (0%) 0 1/580 (0.2%) 1 0/574 (0%) 0
    Dyspnoea 0/581 (0%) 0 0/580 (0%) 0 1/574 (0.2%) 1
    Neonatal Aspiration 0/581 (0%) 0 2/580 (0.3%) 2 1/574 (0.2%) 1
    Obstructive Airways Disorder Nos 0/581 (0%) 0 1/580 (0.2%) 1 0/574 (0%) 0
    Pneumonia Aspiration 2/581 (0.3%) 2 2/580 (0.3%) 2 0/574 (0%) 0
    Pneumothorax Nos 0/581 (0%) 0 0/580 (0%) 0 1/574 (0.2%) 1
    Pulmonary Artery Stenosis 0/581 (0%) 0 1/580 (0.2%) 1 0/574 (0%) 0
    Pulmonary Oedema Nos 1/581 (0.2%) 1 0/580 (0%) 0 0/574 (0%) 0
    Respiratory Distress 0/581 (0%) 0 4/580 (0.7%) 5 3/574 (0.5%) 3
    Respiratory Failure 1/581 (0.2%) 1 2/580 (0.3%) 2 1/574 (0.2%) 1
    Tachypnoea 1/581 (0.2%) 2 0/580 (0%) 0 0/574 (0%) 0
    Skin and subcutaneous tissue disorders
    Face Oedema 0/581 (0%) 0 1/580 (0.2%) 1 0/574 (0%) 0
    Urticaria Nos 0/581 (0%) 0 0/580 (0%) 0 1/574 (0.2%) 1
    Social circumstances
    Exposure To Communicable Disease 0/581 (0%) 0 0/580 (0%) 0 1/574 (0.2%) 1
    Social Problem Nos 12/581 (2.1%) 12 14/580 (2.4%) 14 24/574 (4.2%) 24
    Surgical and medical procedures
    Cardiac Operation Nos 0/581 (0%) 0 1/580 (0.2%) 1 0/574 (0%) 0
    Eye Excision 1/581 (0.2%) 1 0/580 (0%) 0 0/574 (0%) 0
    Vascular disorders
    Hypertension Nos 0/581 (0%) 0 0/580 (0%) 0 1/574 (0.2%) 1
    Shock 0/581 (0%) 0 0/580 (0%) 0 1/574 (0.2%) 1
    Vasculitis Nos 1/581 (0.2%) 1 0/580 (0%) 0 0/574 (0%) 0
    Other (Not Including Serious) Adverse Events
    ARM A (ZDV Alone) ARM B (ZDV + NVP) ARM C (ZDV + 3TC/NFV)
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 492/581 (84.7%) 482/580 (83.1%) 480/574 (83.6%)
    Blood and lymphatic system disorders
    Anaemia NOS 286/581 (49.2%) 451 270/580 (46.6%) 402 287/574 (50%) 456
    neutropenia 225/581 (38.7%) 294 119/580 (20.5%) 261 244/574 (42.5%) 334
    Infections and infestations
    oral candidiasis 162/581 (27.9%) 188 170/580 (29.3%) 194 156/574 (27.2%) 177
    Investigations
    Aspartate Aminotransferase Increased 335/581 (57.7%) 439 317/580 (54.7%) 429 325/574 (56.6%) 418

    Limitations/Caveats

    [Not Specified]

    More Information

    Certain Agreements

    Principal Investigators are NOT employed by the organization sponsoring the study.

    There is NOT an agreement between Principal Investigators and the Sponsor (or its agents) that restricts the PI's rights to discuss or publish trial results after the trial is completed.

    Results Point of Contact

    Name/Title Margaret Camarca, Project Director
    Organization Westat
    Phone 301-517-4128
    Email margaretcamarca@westat.com
    Responsible Party:
    Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
    ClinicalTrials.gov Identifier:
    NCT00099359
    Other Study ID Numbers:
    • NICHD/HPTN 040 (P1043)
    First Posted:
    Dec 13, 2004
    Last Update Posted:
    Dec 4, 2012
    Last Verified:
    Feb 1, 2011