Gemeinschaft Sant‘Egidio

Access to Treatment in AfricaErgebnisse und Herausforderungen aus dem Programm

DREAM

Dieter WenderleinGemeinschaft Sant‘EgidioUniversitätsklinikum Würzburg

Gemeinschaft Sant‘Egidio

Das Programm DREAM der Gemeinschaft Sant’Egidio(Drug Resource Enhancement against AIDS and Malnutrition)

Comprehensive approach:

- VCT- Antiretrovirale Therapie (HAART)- Prävention der Mutter-Kind-Übertragung von HIV (PMTCT)- Nahrungsmittelhilfen- Aufklärung- Fortbildung von “AktivistInnen” zu Multiplikatoren- Trainingskurse, Fortbildung von medizinischem Personal

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10 Länder in Subsahara-Afrika

18 Labore zur HIV/AIDS-Diagnostik

31 Therapiezentren: 6 in staatlichen Gesundheitseinrichtungen 22 in kirchlichen Gesundheitseinrichtungen Bisher wurden 100.000 Patienten mit HIV aufgenommen 65.000 Patienten in ART genommen, darunter 6.000 Kinder 14.000 Kinder in PMTCT geboren

Derzeit 1.300 Schwangerschaften in PMTCT

DREAM in Afrika

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Einige Charakteristika von DREAM:

- Komplette Einbindung aller Aktivitäten in die nationalen Gesundheitssysteme

- Kostenlose Versorgung der HIV-Patienten

- Ausschließlich afrikanische Mitarbeiter in den Therapiezentren - Intensive Mitarbeit von AktivistInnen / Community Health Workers

- Klinische Studien u.a. zu PMTCT (Stillzeit), Adhärenz, Risikofaktoren für Sterblichkeit, Diagnostik (realtime PCR)

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Schwangere CD4<350 Therapieindikation HAARTSchwangere CD4>350 HAART (AZT/3TC/NVP) ab der 25. SSW bis zum Ende der Stillzeit

(je nach nationaler Leitlinie 6-12 Monate)Exclusive Breastfeeding bis 6 Monate, nach 6 Monaten complementary feedingLebensmittelhilfen , Moskitonetze

Neugeborenes - ARVs je nach nationaler Leitlinie (NVP SD, NVP für 4-6 Wochen, ev. mit AZT/3TC)- Realtime PCR nach 1-2 Monaten, 12 Monaten, 18 Monate AB-

Test - HAART im Falle der Seropositivität

PMTCT

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Methods:

Prospective observational cohort study

Live-born infants of HIV-1-infected women receiving medical care

HIV-1 testing at 1, 6 and 12 months of age

Women with CD4<350: HAART indefinitely

Women with CD4>350: HAART ante- and postnatally for the first 6 monthsExclusiv breastfeeding for 6 months

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Results:341 infants enrolled at birth313 mother-infant pairs (92%) completed 6 months of follow-up 283 (83%) completed 12 months of follow-upHIV-1 diagnosis was ascertained in 287 infants (84%) including 4 who died.

All 8 transmission occured at women with baseline CD4 > 350 6 of 8 transmissions in women with baseline VL > 4log 6 of 8 transmissions in women with less than 3 months antepartum HAART The 2 transmissions after 6 months occured in women who did non continue HAART

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Two mothers (0.6%) and 11 infants (3.2%) died; 7 infants (64%) died after weaning

Country rate (Mozambique)

Maternal mortality 587/100.000 1000/100.000

Infant mortality 33/1.000 101/1.000

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Favorable pregnancy outcomes with reduction of abortion, stillbirth, and prematurity rates in a large cohort of HIV+ women in Southern Africa receiving highly active antiretroviral therapy (HAART) for prevention of mother-child-transmission (PMTCT)

M.C. Marazzi et al. 5th IAS Conference on HIV Pathogenesis, Treatment and Prevention, Capetown, 19.-22.07.2009

Cohort: 3.273 HIV+ pregnant women from centers in Malawi and Mozambique from 7/2005 to 12/2008

Regimen: NVP-based HAART at 14 wks (if eligible for own health) or 25 wks gestation until 6 months postpartum.

Abortion and stillbirths: Defined as fetal death at < or ≥ 32 wks gestation.

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Results:Median baseline CD4 count: 357/mm3Median baseline viral load: 4Log c/mlMedian pregnancy duration: 39.1 wksMedian time of pre-delivery HAART: 83 days (CL95%53-108).

Maternal mortality: 1.2%Significantly associated withHAART: 7.4% if no HAART vs. 0.7 HAART ≥ 90 days before deliveryCD4 threshold (3.2% vs. 0.7% if ≥ 200; p< 0.001).

Abortion and stillbirth:25.7% (18/70) in women with no HAART4.3% (125/2,909) in women receiving HAART for >30 days (p< 0.001).

Low birth weight:1.5% not associated with HAART duration or CD4 count.

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CD4 countPre-delivery HAART (days)

Premature delivery (N.)

% OR

>500<30>30TOTAL

43/77121/712164/789

55.817.020.8

0.160.10-0.26

351-500<30>30TOTAL

27/5694/661121/717

48.214.216.9

0.180.10-0.31

201-350<30>30TOTAL

45/63124/779169/842

71.415.920.1

0.080.04-0.13

≤200<30>30TOTAL

10/3285/49795/529

31.317.118.0

0.450.21-0.99

Prematurity: Strongly associated with short/absent HAART: 70.8% reduction overall (Mantel-Heanszel OR=0.16; CL95%:0.12-0.21) and within each CD4 strata. Body Mass Index (OR 0.27; CL95% 0.15-0.50) and VL at delivery (OR 1.44; CL95% 1.22-1.70) strongly associated with prematurity by multivariate analysis.

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Palombi L et. al. Limited Risk of Drug Resistance after Discontinuation of Antiretroviral Prophylaxis for the Prevention of Breastfeeding Transmission of HIV. J Acquir Immune Defic Syndr. 2011 May 4. [Epub ahead of print]

Evaluated cohort: 70 HIV-infected pregnant womenCD4>350/mm3

2 treatments sites in Malawi (Lilongwe, Blantyre)

PMTCT Regime: AZT 300mg + 3TC 150mg + NVP 200mg BIDStarting in week 25 of gestational age (or as soon as possible after that) until 6 months postpartum3 week tail of AZT 300mg+3TC 150mg

Plasma sample collected Baseline before drug administration (genotyping)DeliveryMonths 1, 3, 6 postpartum1-2 months after drug discontinuation (genotyping)6 months after drug discontinuation (genotyping)

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Median duration of HAART during pregnancy: 63 daysMedian total duration of HAART: 240 daysMedian time from interruption of all drugs and testing: 60 days

(interquartile range, 58-64)

Results: 5 women had NNRTI mutations after HAART discontinuation (7.1%, 95% CI 1.11-13.17) Risk of developing resistance mutations in compliant women who receive ARV prophylaxis and interrupt drugs 6 months after delivery is limited, after all with a long tail of 3 weeks The HIV-RNA level at the moment of drug discontinuation was significantly higher (P = 0.02) in women subsequently developing mutations. 2 had the same mutation archived in baseline HIV-DNA. Only 2 women with undetectable viral load during treatment had presence of resistance after drug discontinuation. These women had archived resistance at baseline

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3 women had, at least once, detectable viral load and presence of mutations during treatment (K103N+G190A, K101E, K103N+Y188C) Presence of mutations after drug discontinuation associated with previous emergence of resistance during treatment (underlying the importance of drug adherence in these patients) Six months after drug discontinuation (month 12) there was persistence of mutations only when the mutations were previously archived in baseline HIV-DNA. None of the infants born to these women was infected with HIV.

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Probleme - Herausforderungen 1.Leichter gesagt als getan: WHO Leitlinien 2009(z.B. Rapid advice: Use of antiretroviral drugs for treating pregnant women and preventing HIV infection in infants, WHO November 2009)

- Einsatz von EFV zu Beginn der Schwangerschaft- Breiter Einsatz von NVP bei HIV-exposed children (“from birth until 6 weeks of age”,

“from birth until one week after all exposure to breast milk has ended”)- PI/r bleiben weiterhin second line

2. Unzureichender Zugang zu den nötigen diagnostischen Methoden:

- Abdeckung mit CD4-Bestimmung unzureichend- Referenzlabore für Viruslast-Bestimmung, Realtime PCR (dried blood spot!)- Referenzlabore mit Möglichkeit der Resistenztestung

3. Systeme zum Monitoring der Adhärenz Optimierung des Patientenflusses von VCT zu Treatment - Defaulter tracing von Patienten lost to follow up - Einsatz von AktivistInnen, Community Health Workers, Support Groups

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4. Schnelle Ausweitung und Optimierung der Qualität von HAART- zu niedrige Raten auf HIV getesteter Personen

- HAART als Prävention („Test and treat“)

5. Schnelle Ausweitung und Optimierung der Qualität von PMTCT - zu niedrige Raten auf HIV getesteter schwangerer Frauen

- HAART auch für Schwangere ohne Therapieindikation bis zum Ende der Stillzeit (Option B des Rapid advice Use of antiretroviral drugs for treating pregnant women and preventing HIV infection in infants - Richtiges Abstillen (kein abrupt weaning) - Richtige Ernährung des Kindes nach Stillzeit (Wasserqualität)

6. Finanzierungssicherheit (donor fatigue)

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Vielen Dank!