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OPTIMIZING HIV MANAGEMENT IN RESOURCE-LIMITED SETTINGS MANAGING HIV IN CHILDREN: BEST PRACTICES Dr. Mo Archary Paediatric Infectious Diseases Specialist University of KwaZulu Natal/ King Edward VIII Hospital

MANAGING HIV IN CHILDREN: BEST PRACTICES

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Page 1: MANAGING HIV IN CHILDREN: BEST PRACTICES

OPTIMIZING HIV MANAGEMENT IN RESOURCE-LIMITED SETTINGS

MANAGING HIV IN CHILDREN: BEST PRACTICES

Dr. Mo Archary Paediatric Infectious Diseases Specialist University of KwaZulu Natal/ King Edward VIII Hospital

Page 2: MANAGING HIV IN CHILDREN: BEST PRACTICES

OPTIMIZING HIV MANAGEMENT IN RESOURCE-LIMITED SETTINGS

Overview

Global state of paediatric ART

Filling the gaps in paediatric ART cover

Best practices in paediatric care:

• Diagnosis

• When to start

• What to start

• When to switch

• What to switch to

• How to maintain sustained adherence

Page 3: MANAGING HIV IN CHILDREN: BEST PRACTICES

OPTIMIZING HIV MANAGEMENT IN RESOURCE-LIMITED SETTINGS

Global State of Paediatric ART

Celebrating successes/Acknowledging failures

Page 4: MANAGING HIV IN CHILDREN: BEST PRACTICES

OPTIMIZING HIV MANAGEMENT IN RESOURCE-LIMITED SETTINGS

Percentage Decrease Between 2009 and 2011 in the Number of Children (0–14 Years Old) Acquiring HIV Infection in Countries with Generalized Epidemics

UNAIDS report on the global AIDS epidemic 2012. Available at: http://www.unaids.org/en/media/unaids/contentassets/documents/epidemiology/2012/gr2012/20121120_unaids_global_report_2012_with_annexes_en.pdf

Increased

Angola Congo Equatorial Guinea Guinea-Bissau

40–59%

Burundi Kenya Namibia South Africa Togo Zambia

20–39% Botswana Cameroon Côte d’Ivoire Ethiopia Ghana Guinea Haiti Lesotho Liberia Malawi Papua New Guinea Rwanda Sierra Leone Swaziland Uganda Zimbabwe

1–19% Benin Burkina Faso Central African Republic Chad Djibouti Eritrea Gabon Mozambique Nigeria South Sudan United Republic of Tanzania

Page 5: MANAGING HIV IN CHILDREN: BEST PRACTICES

OPTIMIZING HIV MANAGEMENT IN RESOURCE-LIMITED SETTINGS

Global State of Paediatric ART

UNAIDS report on the global AIDS epidemic 2013. Available at: http://www.unaids.org/en/media/unaids/contentassets/documents/epidemiology/2013/gr2013/UNAIDS_Global_Report_2013_en.pdf

Number of new HIV infections among children in low- and middle-income countries, 2001–2012 and 2015 target

2001 2009 2012 2015 0

100,000

200,000

300,000

400,000

500,000

600,000

700,000

New

HIV

infe

ctio

ns

-52% 2001–2012

-35% 2009–2012

40,000

-90%

Page 6: MANAGING HIV IN CHILDREN: BEST PRACTICES

OPTIMIZING HIV MANAGEMENT IN RESOURCE-LIMITED SETTINGS

Global State of Paediatric ART

UNAIDS report on the global AIDS epidemic 2013. Available at: http://www.unaids.org/en/media/unaids/contentassets/documents/epidemiology/2013/gr2013/UNAIDS_Global_Report_2013_en.pdf

Projected impact on new child HIV infections by programmes to prevent mother-to-child transmission,

21 Global Plan priority countries in sub-Saharan Africa, 2009–2015

2009 2012 2015 0

50,000

100,000

150,000

200,000

250,000

300,000

350,000

New

HIV

infe

ctio

ns

2012 coverage maintained ARV coverage scaled up to 90% Eliminate unmet need for family planning Reduce incidence by 50% Target

Page 7: MANAGING HIV IN CHILDREN: BEST PRACTICES

OPTIMIZING HIV MANAGEMENT IN RESOURCE-LIMITED SETTINGS

UNAIDS report on the global AIDS epidemic 2012. Available at: http://www.unaids.org/en/media/unaids/contentassets/documents/epidemiology/2012/gr2012/20121120_unaids_global_report_2012_with_annexes_en.pdf

28% COVERAGE FOR CHILDREN

HIV treatment coverage is 68% for women and 47% for

men in low- and middle-income countries, compared with 28%

for children worldwide

Page 8: MANAGING HIV IN CHILDREN: BEST PRACTICES

OPTIMIZING HIV MANAGEMENT IN RESOURCE-LIMITED SETTINGS

3.4 Kg Baby – First Referral to Hospital

9 months old

Page 9: MANAGING HIV IN CHILDREN: BEST PRACTICES

OPTIMIZING HIV MANAGEMENT IN RESOURCE-LIMITED SETTINGS

Key Barriers to Paediatric ART Initiation

Individual level factors:1

• Fear and stigma • Caregivers unawareness of HIV symptoms • Living without parents • Unemployment of the caregiver • Lack of perinatal prophylaxis • High transportation costs to the clinic

Health system issues: • Failure to link perinatal, well baby care to paediatric ART care • Problems with diagnosis of paediatric HIV (especially <18 months) • Healthcare worker

– Lack of identification of common HIV symptoms – Reluctance to start ART in children – perceived to be complicated

1. Boender TS, et al. AIDS Res Treat 2012;817506

Page 10: MANAGING HIV IN CHILDREN: BEST PRACTICES

OPTIMIZING HIV MANAGEMENT IN RESOURCE-LIMITED SETTINGS

Diagnosis

Optimal timing of HIV testing in children is a balancing act

Need for early testing

Sensitivity of test

Page 11: MANAGING HIV IN CHILDREN: BEST PRACTICES

OPTIMIZING HIV MANAGEMENT IN RESOURCE-LIMITED SETTINGS

Virologic Testing and Mortality Rates in Neonates

1. Dunn DT, et al. AIDS 1995;9:F7–11; 2. Bourne DE, et al. AIDS 2009;23:101–6

Birth 2–4 weeks 3–6 months Sensitivity 55% 90% 100%

Specificity 99.8% 100% 100%

Peak of mortality in South Africa & timing of virological testing & early treatment in different cohorts

Sensitivity and specificity of neonatal PCR

1 0 3 2 5 4 7 6 9 8 11 10 0

1000

2000

3000

4000

HIV-

rela

ted

deat

hs

Age at death (months) 6-week PCR

Results

ART

initi

atio

n un

der c

urre

nt

reco

mm

enda

tion

of 6

-wee

k PC

R te

st

Page 12: MANAGING HIV IN CHILDREN: BEST PRACTICES

OPTIMIZING HIV MANAGEMENT IN RESOURCE-LIMITED SETTINGS

Early Infant Diagnosis

WHO 20131 SA Guidelines2

DHHS Guidelines3 BHIVA4

Birth X (high risk) X (high risk) X

2–4 weeks X

4–6 weeks X X X X (2 weeks post prophylaxis)

12 weeks X (2 months post prophylaxis)

4–6 months X 2–4 weeks after stopping breastfeeding or cessation of ARV prophylaxis

X (POST BF

ONLY) X

Symptomatic infant X X X X

1. WHO. The use of antiretroviral drugs for treating and preventing HIV infection: recommendations for a public health approach. 2013 revision. Available at: http://apps.who.int/iris/bitstream/10665/85321/1/9789241505727_eng.pdf; 2. The South African Antiretroviral Treatment Guidelines 2013. Available at: http://www.sahivsoc.org/upload/documents/2013%20ART%20GuidelinesShort%20Combined%20FINAL%20draft%20guidelines%2014%20March%202013.pdf; 3. DHHS. Recommendations for use of antiretroviral drugs in pregnant HIV-1-infected women for maternal health and interventions to reduce perinatal HIV transmission in the United States. July 31, 2012. Available at: http://aidsinfo.nih.gov/contentfiles/lvguidelines/perinatalgl.pdf; 4. BHIVA guidelines for the management of HIV infection in pregnant women 2012. Available at: http://www.bhiva.org/documents/Guidelines/Pregnancy/2012/hiv1030_6.pdf

Page 13: MANAGING HIV IN CHILDREN: BEST PRACTICES

OPTIMIZING HIV MANAGEMENT IN RESOURCE-LIMITED SETTINGS

Point-of Care EID Tests

WHO supplement to the 2013 consolidated guidelines. Available at: http://apps.who.int/iris/bitstream/10665/104264/1/9789241506830_eng.pdf?ua=1

2013 2014 2015 2016

LiatTM Analyser IQuum

Alere Q Alere

EOSCAPE HIVTM Rapid RNA Assay System Wave 80 Biosciences

LYNX Viral Load Platform NWGHF

RT CPA HIV-1 Viral Load

Ustar

Gene-RADAR® Nanobiosym

Viral Load Assay with BART

Lumora

Micronics

All

BioHelix

Cavidi AMP Gene Xpert® System Cepheid

Samba VL DDU/Cambridge

LYNX HIV p24 Antigen NWGHF

TruelabTM PCR Molbio/bigTec

SAMBA EID DDU/Cambridge

Page 14: MANAGING HIV IN CHILDREN: BEST PRACTICES

OPTIMIZING HIV MANAGEMENT IN RESOURCE-LIMITED SETTINGS

When To Start ART Age WHO 20131 SA guidelines2 DHHS (USA)3 BHIVA4

<1 year Start all Start all Start all Start all 1–3 years Start all

Start all CDC B/C or

VL >100 000 c/mL or CD4 <1000 cells/μl/25%

CDC B/C or CD4 <1000

cells/μl/25%*

3–5 years Start all Start all CDC B/C or VL >100 000 c/mL

or CD4 <750 cells/μl/25%

CDC B/C or VL >100 000 c/mL

or CD4 <500 cells/μl/20%*

>5 years WHO Stage 3/4 or CD4 <500 cells/μl

(prioritize <350 cells/μl)

WHO Stage 3/4 or CD4 <350 cells/μl

CDC B/C or VL >100 000 c/mL

or CD4 <350 or 500 cells/μl

CDC B/C or CD4 <350 or

500 cells/μl

*consider VL >100 000 c/mL 1. WHO. The use of antiretroviral drugs for treating and preventing HIV infection: recommendations for a public health approach. 2013 revision. Available at: http://apps.who.int/iris/bitstream/10665/85321/1/9789241505727_eng.pdf; 2. The South African Antiretroviral Treatment Guidelines 2013. Available at: http://www.sahivsoc.org/upload/documents/2013%20ART%20GuidelinesShort%20Combined%20FINAL%20draft%20guidelines%2014%20March%202013.pdf; 3. DHHS. Recommendations for use of antiretroviral drugs in pregnant HIV-1-infected women for maternal health and interventions to reduce perinatal HIV transmission in the United States. July 31, 2012. Available at: http://aidsinfo.nih.gov/contentfiles/lvguidelines/perinatalgl.pdf; 4. BHIVA guidelines for the management of HIV infection in pregnant women 2012. Available at: http://www.bhiva.org/documents/Guidelines/Pregnancy/2012/hiv1030_6.pdf

Page 15: MANAGING HIV IN CHILDREN: BEST PRACTICES

OPTIMIZING HIV MANAGEMENT IN RESOURCE-LIMITED SETTINGS

Violari A, et al. IAS 2007 abstract WESS103

ART initiated before 12 weeks reduces early mortality in

young HIV-infected infants: evidence from the Children with HIV Early

Antiretroviral Therapy (CHER) Study

Avy Violari, Mark Cotton, Di Gibb, Abdel Babiker, Jan Steyn, Patrick Jean-Philippe, James McIntyre

PHRU, University of Witwatersrand; KID-CRU, Stellenbosch University; MRC-CTU UK; DAIDS NIAID, NIH

Page 16: MANAGING HIV IN CHILDREN: BEST PRACTICES

OPTIMIZING HIV MANAGEMENT IN RESOURCE-LIMITED SETTINGS

Mortality Rates

Violari A, et al. IAS 2007 abstract WESS103

Variable Early Treatment

(arm 2/3) n=252

Deferred Treatment (arm 1) n=125

Total n=377

Died (%) 10 (4%) 20 (16%) 30 (8%)

Person Years of follow-up 167 79 246

Rate per 100 PY (95% CI) 6.0 (2.9; 10) 25.3 (15.5; 39.0) 12.2 (8.2; 17.4)

Hazard Ratio 0.24 (0.11; 0.51)

P-value 0.0002

Page 17: MANAGING HIV IN CHILDREN: BEST PRACTICES

OPTIMIZING HIV MANAGEMENT IN RESOURCE-LIMITED SETTINGS

When To Start ART in Children Aged 2–5 Years: A Collaborative Causal Modelling Analysis of Cohort Studies from Southern Africa

Schomaker M, et al. Plos Medicine 2013;10:e1001555

0.00

0.01

0.02

0.03

0.04

Mor

talit

y

Follow-up time (months) 0 3 9 12 18 27 30 1 6 15 21 24 33 36

Intervention* 750,25% Always ART

Estimated cumulative mortality for immediate vs. deferred ART

*Estimated cumulative mortality (including 95% bootstrap CI, dashed lines) over 3 y if ART was given irrespective of CD4 count and CD4% (‘always ART’) and if ART was given if the CD4 count was below 750 cells/mm3 or the CD4% was below 25% (‘750,25%’)

Estimated probability of falling below a CD4+ count of 750 cells/mm3 or a CD4+ of 25%

0

25

50

75

Follow-up time (years) 0 1 2 3

100

Thre

shol

d re

ache

d (%

)

Page 18: MANAGING HIV IN CHILDREN: BEST PRACTICES

OPTIMIZING HIV MANAGEMENT IN RESOURCE-LIMITED SETTINGS

What To Start

WHO. The use of antiretroviral drugs for treating and preventing HIV infection: recommendations for a public health approach. 2013 revision. Available at: http://apps.who.int/iris/bitstream/10665/85321/1/9789241505727_eng.pdf

Summary of first-line ART regimens for children younger than three years

Preferred regimens ABC or AZT + 3TC + LPV/r

Alternative regimens ABC or AZT + 3TC + NVP

Special circumstances d4T + 3TC + LPV/r d4T + 3TC + NVP

Page 19: MANAGING HIV IN CHILDREN: BEST PRACTICES

OPTIMIZING HIV MANAGEMENT IN RESOURCE-LIMITED SETTINGS

Nevirapine vs. Ritonavir-boosted Lopinavir for HIV-infected Children

Violari A, et al. N Engl J Med 2012;366:2380–9

0

10

20

30

40

50

60

70

80

90

100

On

trea

tmen

t with

no

viro

logi

c fa

ilure

(%)

Week 0 24 48 72 96 120 144 168

Lopinavir/r

Nevirapine

Failure rate at 24 weeks Nevirapine, 41.5% Lopinavir/r, 19.4%

Time to virologic failure or treatment discontinuation, age <12 months

No. at risk Nevirapine 41 28 15 10 5 3 2 2 Lopinavir/r 36 33 25 13 7 6 5 3

Time to virologic failure or treatment discontinuation, age ≥12 months

No. at risk Nevirapine 106 81 53 37 20 17 10 5 Lopinavir/r 104 92 68 41 26 20 12 6

0

10

20

30

40

50

60

70

80

90

100

On

trea

tmen

t with

no

viro

logi

c fa

ilure

(%)

Week 0 24 48 72 96 120 144 168

Lopinavir/r

Nevirapine Failure rate at 24 weeks Nevirapine, 40.6% Lopinavir/r, 19.2%

Page 20: MANAGING HIV IN CHILDREN: BEST PRACTICES

OPTIMIZING HIV MANAGEMENT IN RESOURCE-LIMITED SETTINGS

WHO 2013: Summary of Recommended ART Regimens for Children who need TB Treatment

Recommended regimens for children and adolescents initiating ART while on TB treatment

Younger than 3 years Two NRTIs + NVP, ensuring that dose is 200 mg/m2

or Triple NRTI (AZT + 3TC + ABC)

3 years and older Two NRTIs + EFV or Triple NRTI (AZT + 3TC + ABC)

Recommended regimen for children and infants initiating TB treatment while receiving ART

Child on standard NNRTI-based regimen (two NRTIs + EFV or NVP)

Younger than 3 years

Continue NVP, ensuring that dose is 200 mg/m2

or Triple NRTI (AZT + 3TC + ABC)

3 years and older

If the child is receiving EFV, continue the same regimen If the child is receiving NVP, substitute with EFV or Triple NRTI (AZT + 3TC + ABC)

WHO. The use of antiretroviral drugs for treating and preventing HIV infection: recommendations for a public health approach. 2013 revision. Available at: http://apps.who.int/iris/bitstream/10665/85321/1/9789241505727_eng.pdf

Page 21: MANAGING HIV IN CHILDREN: BEST PRACTICES

OPTIMIZING HIV MANAGEMENT IN RESOURCE-LIMITED SETTINGS

WHO 2013: Summary of Recommended ART Regimens for Children who need TB Treatment

WHO. The use of antiretroviral drugs for treating and preventing HIV infection: recommendations for a public health approach. 2013 revision. Available at: http://apps.who.int/iris/bitstream/10665/85321/1/9789241505727_eng.pdf

Recommended regimen for children and infants initiating TB treatment while receiving ART

Child on standard PI-based regimen (two NRTIs + LPV/r)

Younger than 3 years

Triple NRTI (AZT + 3TC + ABC) or Substitute NVP for LPV/r, ensuring that dose is 200 mg/m2

or Continue LPV/r; consider adding RTV to achieve the full therapeutic dose

3 years and older

If the child has no history of failure of an NNRTI-based regimen: Substitute with EFV or Triple NRTI (AZT + 3TC + ABC) or Continue LPV/r; consider adding RTV to achieve the full therapeutic dose If the child has a history of failure of an NNRTI-based regimen: Triple NRTI (AZT + 3TC + ABC) or Continue LPV/r consider adding RTV to achieve the full therapeutic dose Consider consultation with experts for constructing a second-line regimen

Page 22: MANAGING HIV IN CHILDREN: BEST PRACTICES

OPTIMIZING HIV MANAGEMENT IN RESOURCE-LIMITED SETTINGS

Children 3 years to less than 10 years and adolescents <35 kg

Adolescents (10 to 19 years) ≥35 kg

Preferred ABC + 3TC + EFV TDF + 3TC (or FTC) + EFV

Alternatives

ABC + 3TC + NVP AZT + 3TC + EFV AZT + 3TC + NVP TDF + 3TC (or FTC) + EFV TDF + 3TC (or FTC) + NVP

AZT + 3TC + EFV AZT + 3TC + NVP TDF + 3TC (or FTC) + NVP

Special circumstances d4T + 3TC + EFV d4T + 3TC + NVP

ABC + 3TC + EFV ABC + 3TC + NVP

WHO 2013: Summary of Recommended First-line ART Regimens for Children and Adolescents

WHO. The use of antiretroviral drugs for treating and preventing HIV infection: recommendations for a public health approach. 2013 revision. Available at: http://apps.who.int/iris/bitstream/10665/85321/1/9789241505727_eng.pdf

Page 23: MANAGING HIV IN CHILDREN: BEST PRACTICES

OPTIMIZING HIV MANAGEMENT IN RESOURCE-LIMITED SETTINGS

Algorithm for the WHO 2013 Recommendations for Children

WHO. The use of antiretroviral drugs for treating and preventing HIV infection: recommendations for a public health approach. 2013 revision. Available at: http://apps.who.int/iris/bitstream/10665/85321/1/9789241505727_eng.pdf

Infants and children infected with HIV

<5 years of age ≥5 years of age

WHO clinical stage 3 or 4 or

CD4+ ≤500 cells/mm3?

Initiate ART Monitor clinical stage and CD4 Initiate ART

<3 years of age?

Initiate one of the following regimens:

Preferred option: TDF + 3TC (or FTC) + EFV

Alternative options: AZT + 3TC + EFV AZT + 3TC + NVP TDF + 3TC (or FTC) + NVP

Initiate one of the following regimens:

Preferred option: ABC + 3TC + EFV

Alternative options: ABC + 3TC + NVP AZT + 3TC + EFV AZT + 3TC + NVP TDF + 3TC (or FTC) + EFV TDF + 3TC (or FTC) + NVP

Initiate one of the following regimens:

Preferred option: ABC or AZT + 3TC + LPV/r

Alternative options: ABC or AZT + 3TC + NVP

Wha

t firs

t-lin

e AR

T to

star

t in

chi

ldre

n

<10 years of age or weight <35 kg

Yes No

No Yes No

Whe

n to

star

t ART

in

chi

ldre

n

Yes

Page 24: MANAGING HIV IN CHILDREN: BEST PRACTICES

OPTIMIZING HIV MANAGEMENT IN RESOURCE-LIMITED SETTINGS

HIV Testing and Counselling of Adolescents

HIV testing and counselling, with linkages to prevention, treatment and care, is recommended for adolescents from key populations in all settings (generalized, low and concentrated epidemics) (strong recommendation, very-low-quality evidence)

HIV testing and counselling with linkage to prevention, treatment and care is recommended for all adolescents in generalized epidemics (strong recommendation, very-low-quality evidence)

We suggest that HIV testing and counselling with linkage to prevention, treatment and care be accessible to all adolescents in low and concentrated epidemics (conditional recommendation, very-low-quality evidence)

We suggest that adolescents be counselled about the potential benefits and risks of disclosure of their HIV status and empowered and supported to determine if, when, how and to whom to disclose (conditional recommendation, very-low quality evidence)

WHO. The use of antiretroviral drugs for treating and preventing HIV infection: recommendations for a public health approach. 2013 revision. Available at: http://apps.who.int/iris/bitstream/10665/85321/1/9789241505727_eng.pdf

Page 25: MANAGING HIV IN CHILDREN: BEST PRACTICES

OPTIMIZING HIV MANAGEMENT IN RESOURCE-LIMITED SETTINGS

Laboratory Monitoring Before and After Initiating ART Phase of HIV management

Recommended Desirable (if feasible)

HIV diagnosis

HIV serology, CD4 cell count TB screening

HBV (HBsAg) serology

HCV serology Cryptococcus antigen if CD4 count ≤100 cells/mm3

Screening for sexually transmitted infections Assessment for major noncommunicable chronic diseases and comorbidities

Follow-up before ART

CD4 cell count (every 6–12 months)

ART initiation

CD4 cell count Haemoglobin test for AZT

Pregnancy test Blood pressure measurement Urine dipsticks for glycosuria and estimated glomerular filtration rate (eGFR) and serum creatinine for TDF

Alanine aminotransferase for NVP

Receiving ART CD4 cell count (every 6 months) HIV viral load (at 6 months after initiating ART and every 12 months thereafter)

Urine dipstick for glycosuria and serum creatinine for TDF

Treatment failure CD4 cell count HIV viral load

HBV (HBsAg) serology (before switching ART regimen if this testing was not done or if the result was negative at baseline)

WHO. The use of antiretroviral drugs for treating and preventing HIV infection: recommendations for a public health approach. 2013 revision. Available at: http://apps.who.int/iris/bitstream/10665/85321/1/9789241505727_eng.pdf

Page 26: MANAGING HIV IN CHILDREN: BEST PRACTICES

OPTIMIZING HIV MANAGEMENT IN RESOURCE-LIMITED SETTINGS

When To Switch?

All populations

Viral load is recommended as the preferred monitoring approach to diagnose and confirm ARV treatment failure (strong recommendation, low-quality evidence)

If viral load is not routinely available, CD4 count and clinical monitoring should be used to diagnose treatment failure (strong recommendation, moderate-quality evidence)

WHO. The use of antiretroviral drugs for treating and preventing HIV infection: recommendations for a public health approach. 2013 revision. Available at: http://apps.who.int/iris/bitstream/10665/85321/1/9789241505727_eng.pdf

Page 27: MANAGING HIV IN CHILDREN: BEST PRACTICES

OPTIMIZING HIV MANAGEMENT IN RESOURCE-LIMITED SETTINGS

Treatment Failure Pathway

Detectable Viral Load:

≠ Change of regimen

= Call to action – Intensified adherence

1. Early recognition of

virological failure

2. Early initiation of enhanced adherence

3. Appropriate referral for

resistance testing

Page 28: MANAGING HIV IN CHILDREN: BEST PRACTICES

OPTIMIZING HIV MANAGEMENT IN RESOURCE-LIMITED SETTINGS

Advanced Clinical Care – 23/04/2014

Page 29: MANAGING HIV IN CHILDREN: BEST PRACTICES

OPTIMIZING HIV MANAGEMENT IN RESOURCE-LIMITED SETTINGS

WHO Definitions of Clinical, Immunological and Virological Failure for the Decision to Switch ART Regimens

WHO. The use of antiretroviral drugs for treating and preventing HIV infection: recommendations for a public health approach. 2013 revision. Available at: http://apps.who.int/iris/bitstream/10665/85321/1/9789241505727_eng.pdf

Failure Definition Comments

Clinical failure

Adults and adolescents New or recurrent clinical event indicating severe immunodeficiency (WHO clinical stage 4 condition) after 6 months of effective treatment Children New or recurrent clinical event indicating advanced or severe immunodefiency (WHO clinical stage 3 and 4 clinical condition with exception of TB) after 6 months of effective treatment

The condition must be differentiated from immune reconstitution inflammatory syndrome occurring after initiating ART For adults, certain WHO clinical stage 3 conditions (pulmonary TB and severe bacterial infections) may also indicate treatment failure

Immunological failure

Adults and adolescents CD4 count falls to the baseline (or below) or Persistent CD4 levels below 100 cells/mm3

Without concomitant or recent infection to cause a transient decline in the CD4 cell count A systematic review found that current WHO clinical and immunological criteria have low sensitivity and positive predictive value for identifying individuals with virological failure. The predicted value would be expected to be even lower with earlier ART initiation and treatment failure at higher CD4 cell counts. There is currently no proposed alternative definition of treatment failure and no validated alternative definition of immunological failure

Children Younger than 5 years: Persistent CD4 levels below 200 cells/mm3 or <10% Older than 5 years: Persistent CD4 levels below 100 cells/mm3

Virological failure

Plasma viral load above 1000 copies/mL based on two consecutive viral load measurements after 3 months, with adherence support

The optimal threshold for defining virological failure and the need for switching ART regimen has not been determined An individual must be taking ART for at least 6 months before it can be determined that a regimen has failed Assessment of viral load using DBS and point-of-care technologies should use a higher threshold

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Simplified Dosing of Child-friendly Fixed-dose Solid Formulations for Twice-daily Dosing among Children

WHO. The use of antiretroviral drugs for treating and preventing HIV infection: recommendations for a public health approach. 2013 revision. Available at: http://apps.who.int/iris/bitstream/10665/85321/1/9789241505727_eng.pdf

Drug Strength of tablets (mg)

Number of tablets by weight band morning and evening Strength of

adult tablets (mg)

Number of tablets by

weight band 3–5.9 kg 6–9.9 kg 10–13.9 kg 14–19.9 kg 20–24.9 kg 25–34.9 kg AM PM AM PM AM PM AM PM AM PM AM PM

AZT/3TC

Tablet (dispersible) 60 mg/30 mg 1 1 1.5 1.5 2 2 2.5 2.5 3 3 300/150 1 1

AZT/3TC/NVP

Tablet (dispersible) 60 mg/30 mg/50 mg 1 1 1.5 1.5 2 2 2.5 2.5 3 3 300/150/200 1 1

ABC/AZT/3TC

Tablet (dispersible) 60 mg/60 mg/30 mg 1 1 1.5 1.5 2 2 2.5 2.5 3 3 300/300/150 1 1

ABC/3TC

Tablet (dispersible) 60 mg/30 mg 1 1 1.5 1.5 2 2 2.5 2.5 3 3 600/300 0.5 0.5

d4T/3TC

Tablet (dispersible) 6 mg/30 mg 1 1 1.5 1.5 2 2 2.5 2.5 3 3 30/150 1 1

d4T/3TC/NVP

Tablet (dispersible) 6 mg/30 mg/50 mg 1 1 1.5 1.5 2 2 2.5 2.5 3 3 - 4 4

Page 31: MANAGING HIV IN CHILDREN: BEST PRACTICES

OPTIMIZING HIV MANAGEMENT IN RESOURCE-LIMITED SETTINGS

Simplified Dosing of Child-friendly Solid Formulations for Once-daily Dosing in Children

WHO. The use of antiretroviral drugs for treating and preventing HIV infection: recommendations for a public health approach. 2013 revision. Available at: http://apps.who.int/iris/bitstream/10665/85321/1/9789241505727_eng.pdf

Drug Strength of tablets (mg)

Number of tablets or capsules by weight band once daily Strength of

tablet (mg)

Number of tablets by

weight band

3–5.9 kg 6–9.9 kg 10–13.9 kg 14–19.9 kg 20–24.9 kg 25–34.9 kg

EFV

Tablet (scored) 200 mg - - 1 1.5 1.5 200 2

Tablet (double scored)

600 mg - - one third one half two thirds 600 2/3

ABC/3TC

Tablet (dispersible) 60/30 mg 2 3 4 5 6 600 + 300 1

Page 32: MANAGING HIV IN CHILDREN: BEST PRACTICES

OPTIMIZING HIV MANAGEMENT IN RESOURCE-LIMITED SETTINGS

Simplified Dosing of Child-friendly Solid and Liquid Formulations for Twice-daily Dosing

WHO. The use of antiretroviral drugs for treating and preventing HIV infection: recommendations for a public health approach. 2013 revision. Available at: http://apps.who.int/iris/bitstream/10665/85321/1/9789241505727_eng.pdf

Drug Strength of tablets (mg)

Number of tablets by weight band morning and evening Strength of adult tablets

(mg)

Number of tablets by

weight band 3–5.9 kg 6–9.9 kg 10–13.9 kg 14–19.9 kg 20–24.9 kg 25–34.9 kg

AM PM AM PM AM PM AM PM AM PM AM PM Solid formulations

3TC Table (dispersible) 30 mg 1 1 1.5 1.5 2 2 2.5 2.5 3 3 150 1 1 AZT Table (dispersible) 60 mg 1 1 1.5 1.5 2 2 2.5 2.5 3 3 300 1 1 ABC Table (dispersible) 60 mg 1 1 1.5 1.5 2 2 2.5 2.5 3 3 300 1 1 NVP Table (dispersible) 30 mg 1 1 1.5 1.5 2 2 2.5 2.5 3 3 200 1 1

LPV/r Tablet (heat stable) 100 mg/25 mg - - - - 2 1 2 2 2 2 100/25 3 3

Liquid formulations AZT 10 mg/mL 6 mL 6 mL 9 mL 9 mL 12 mL 12 mL - - - - - - - ABC 20 mg/mL 3 mL 3 mL 4 mL 4 mL 6 mL 6 mL - - - - - - - 3TC 10 mg/mL 3 mL 3 mL 4 mL 4 mL 6 mL 6 mL - - - - - - - NVP 10 mg/mL 5 mL 5 mL 8 mL 8 mL 10 mL 10 mL - - - - - - -

LPV/r 80/20 mg/mL 1 mL 1 mL 1.5 mL 1.5 mL 2 mL 2 mL 2.5 mL

2.5 mL 3 mL 3 mL - - -

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Drug Strength of tablet or sprinkle sachet

or capsule (mg)

No. of tables or sprinkle capsules/sachets by weight band 3–5.9 kg 6–9.9 kg 10–13.9 kg 14–19.9 kg 20–24.9 kg 25–34.9 kg

AM PM AM PM AM PM AM PM AM PM AM PM ABC/3TC/NVP 60 mg/30 mg/50 mg 1 1 1.5 1.5 2 2 2.5 2.5 3 3 4 4 LPV/r sprinkles 40 mg/10 mg 2 2 3 3 4 4 5 5 6 6 -

ABC/3TC/LPV/r 30 mg/15 mg/40 mg/ 10 mg 2 2 3 3 4 4 5 5 6 6 -

AZT/3TC/LPV/r 30 mg/15 mg/40 mg/ 10 mg 2 2 3 3 4 4 5 5 6 6 -

DRV/r 240 mg/40 mg - - - - 1 1 1 1 2 1 - ARV/r 100 mg/33 mg - - 1 1 2 - ABC/3TC 120 mg/60 mg 1 1.5 2 2.5 3 - TDF/3TC 75 mg/75 mg - - 1.5 2 2.5 3–3.5 TDF/3TC/EFV 75 mg/75 mg/150 mg - - 1.5 2 2.5 3–3.5 TDF/3TC adult double scored

300 mg/300 mg - - one third one half two thirds 1

TDF/3TC/EFV adult double scored

300 mg/300 mg/ 600 mg - - one third one half two thirds 1

Simplified Dosing for Urgently Needed ARV Drugs for Children Recommended by The Paediatric Antiretroviral Working Group

WHO. The use of antiretroviral drugs for treating and preventing HIV infection: recommendations for a public health approach. 2013 revision. Available at: http://apps.who.int/iris/bitstream/10665/85321/1/9789241505727_eng.pdf

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What To Switch To?

WHO. The use of antiretroviral drugs for treating and preventing HIV infection: recommendations for a public health approach. 2013 revision. Available at: http://apps.who.int/iris/bitstream/10665/85321/1/9789241505727_eng.pdf

Second-line ART Preferred regimens Alternative regimens Adults and adolescents (≥10 years), including pregnant and breastfeeding women

AZT + 3TC + LPV/ra

AZT + 3TC + ATV/ra TDF + 3TC (or FTC) + ATV/r TDF + 3TC (or FTC) + LPV/r

Children

If a NNRTI-based first- line regimen was used ABC + 3TC + LPV/rb ABC + 3TC + LPV/rb

TDF + 3TC (or FTC) + LPV/rb

If a PI-based first-line regimen was used

<3 years No change from first-line regimen in usec AZT (or ABC) + 3TC + NVP

3 years to less than 10 years

AZT (or ABC) + 3TC + EFV ABC (or TDF) + 3TC + NVP

aDRV/r can be used as an alternative PI and SQV/r in special situations; neither is currently available as a heat-stable fixed-dose combination, but a DRV + RTV heat-stable fixed-dose combination is currently in development. bATV/r can be used as an alternative to LPV/r for children older than six years. cUnless failure is caused by lack of adherence resulting from poor palatability of LPV/r.

Summary of preferred second-line ART regimens for adults, adolescents, pregnant women and children

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Maintaining Good Adherence in Children

Challenging:

• Young child: – Appropriate formulation for the age of the child – Fitting the ART regimen into the child’s schedule – ART fatigue

• Adolescent and pre-adolescent: – Disclosure – Challenging of authority / Development of an individual

personality – Ease of taking chronic medication

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New Drugs/New Recommendations of Established Drugs

Abacavir • Once daily dosing

Efavirenz • FDA approved in children >3/12 and >3.5 kg

Nevirapine • XR or extended release in those >6 years

Darunavir • Once daily dosing only in those >12 years • Although FDA approved in those <12 years, not enough data for

once daily dosing Raltegravir • FDA approved for infants and children >4 weeks >3 kg • Sachets for reconstitution

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New Formulations for Children

Partnership between CIPLA and DNDi Specially created for children <3 years of age By 2015 2 new FDCs plus new ritonavir Ritonavir • For babies with TB and HIV • Granules

FDCs • 4-in-1 (LPV/r/AZT/3TC and LPV/r/ABC/3TC) • Granules • Sprinkled over food/mixed with milk • Palatable (masked taste) • No refrigeration