Presentación realizada por Piedad Arazo Garcés, en el curso de la Jornada Pacientes y Salud: “Foros en el CIBA”. Novedades terapéuticas e importancia del paciente informado, el 12 de noviembre de 2014.
6. MK-1439 (Doravirine): A New NNRTI
MMKK--11443399 2255 mmgg
Dose-Ranging Trial in Treatment-naïve Patients
3-fold potency shift vs. common NNRTI-resistance mutants
K103N, Y181C, G190A, E138K(4)
Low potential for CNS effects, drug-drug interactions; lower
protein-binding vs. other NNRTIs
Morales-Ramirez J, et al. 21st CROI; Boston, MA; March 3-6, 2014. Abst. 92LB.
EEffaavviirreennzz
MMKK--11443399 220000 mmgg
EEffaavviirreennzz
96 Week End of
Study Treatment
for Part 1
MK-1439 Selected
Dose
PART 1
Dose-Ranging
~200 patients
(~40/group)
MMKK--11443399 5500 mmgg
MMKK--11443399 110000 mmgg
24 Week Primary
Time Point for
Dose Selection
15. Choice of Initial Regimen
Tenofovir/emtricitabine (TDF/FTC) OR
Abacavir/lamivudine (ABC/3TC)
WITH
Third agent (NNRTI, boosted PI, or InSTI):
• Efavirenz OR
• Atazanavir/r OR
• Darunavir/r OR
• Raltegravir
Thompson et al, JAMA, 2012.
16. A5257 Study Design*
HIV-infected patients, ≥18 yr, with no previous ART,
VL ≥ 1000 c/mL at US Sites
Randomized 1:1:1 to Open Label Therapy
Stratified by screening HIV-1 RNA level (≥ vs 100,000 c/mL), A5260s
metabolic substudy participation, cardiovascular risk
RRAALL 440000 mmgg BBIIDD ++
FFTTCC//TTDDFF220000//330000mmggQQDD
DDRRVV 880000mmggQQDD++RRTTVV 110000mmggQQDD
++ FFTTCC//TTDDFF 220000//330000 mmgg QQDD
AATTVV 330000mmgg QQDD ++ RRTTVV 110000mmggQQDD
++ FFTTCC//TTDDFF 220000//330000 mmgg QQDD
Study Conclusion 96 weeks after final participant enrolled
Follow-up continued for 96 weeks after randomization of last subject (range 2-4
years) regardless of status on randomized ART
600 PACIENTES POR RAMA
*With the exception of RTV, all ART drugs were provided by the study
17. ACTG 5257: Failure Comparisons at 96 Weeks
Virologic Failure
Arms Difference 97.5% CI Favors
ATV/r vs. RAL 3.4% -0.7%, 7.4% Equivalent
DRV/r vs. RAL 5.6% 1.3%, 9.9% Equivalent
ATV/r vs. DRV/r -2.2% -6.7%, 2.3% Equivalent
18. ACTG 5257: Failure Comparisons at 96 Weeks
Virologic Failure
Arms Difference 97.5% CI Favors
ATV/r vs. RAL 3.4% -0.7%, 7.4% Equivalent
DRV/r vs. RAL 5.6% 1.3%, 9.9% Equivalent
ATV/r vs. DRV/r -2.2% -6.7%, 2.3% Equivalent
Tolerability Failure
Arms Difference 97.5% CI Favors
ATV/r vs. RAL 13% 9.4%, 16% RAL Superior
DRV/r vs. RAL 3.6% 1.4%, 5.8% RAL Superior
ATV/r vs. DRV/r 9.2% 5.5%, 13% DRV/r Superior
19. ACTG 5257: Failure Comparisons at 96 Weeks
Virologic Failure
Arms Difference 97.5% CI Favors
ATV/r vs. RAL 3.4% -0.7%, 7.4% Equivalent
DRV/r vs. RAL 5.6% 1.3%, 9.9% Equivalent
ATV/r vs. DRV/r -2.2% -6.7%, 2.3% Equivalent
Tolerability Failure
Arms Difference 97.5% CI Favors
ATV/r vs. RAL 13% 9.4%, 16% RAL Superior
DRV/r vs. RAL 3.6% 1.4%, 5.8% RAL Superior
ATV/r vs. DRV/r 9.2% 5.5%, 13% DRV/r Superior
Cumulative Failure
Arms Difference 97.5% CI Favors
ATV/r vs. RAL 15% 10%, 20% RAL Superior
DRV/r vs. RAL 7.5% 3.2%, 12% RAL Superior
ATV/r vs. DRV/r 7.5% 2.3%, 13% DRV/r Superior
21. Elvitegravir/c: Eficacia y seguridad en los estudios 102 y 103
en semana 96
TDF/FTC/EVG/c (n=701) EFV/TDF/FTC (n=352) ATV/r + FTC/TDF (n=355)
80 80 85 81 82 82
100
80
60
40
20
• Subgrupo de CD4 50 (n=30).
• 11/19 EVGc con éxito virológico. 8 fueron fracasos (todos con CV 100 K c/mL, 4 con
adherencia subóptima.
• 5/6 EFV con éxito virológico; 1 fracaso (CV 100 K c/mL, con adherencia subóptima).
• 5/5 ATV/r + TDF/FTC con éxito virológico.
Zolopa A. et al. 20th CROI. Atlanta, 3 – 6 Marzo 2013. #553
78
84 86
0
50 a ≤200 200 a ≤350 350
CD4 (cels/mm3)
Éxito virológico en semana 96 (%)
22. Dolutegravir (estudio SPRING-2). Análisis de eficacia a 48 semanas
• DTG es no-inferior a RAL con un margen del 10%: Diferencia: 2,5%; IC95% (-2,2% a 7,1%).
• No-inferioridad demostrada con 100.000 c/mL 7,5 (-3,1 a 18).
• No-inferioridad demostrada con TDF/FTC: 4,6 (-1,3 a 10,6) y con ABC/3TC -0,8 (-8,2 a 6,6).
• Similar recuperación de CD4 entre DTG y RAL (+230 CD4 a las 48 semanas).
• Fallo virológico a 48 semanas: DTG 20 (5%; 1 con CV400); RAL: 28 (7%; 5 con CV400).
• Resistencias: con DTG: 0 a integrasa, 0 a nucleósidos; RAL: 1 a integrasa, 4 a nucleósidos.
• Efectos adversos grado 2-4: 6% DTG vs 7% RAL. Abandonos por EA: 2% DTG, vs 2% RAL.
• Incremento de creatinina (grado 1/2): 2%/0,6% para DTG vs 2%/0% para RAL.
Raffi F, et al. IAS 2012. Washington DC. 19 - 27 Julio. #THLBB04
100
90
80
70
60
50
40
30
20
10
0
BL Sem 4 Sem 8 Sem 12 Sem 16 Sem 24 Sem 32 Sem 40 Sem 48
Semana
Proporción 50 c/mL (%)
DTG 50 mg QD
RAL 400 mg BID
DTG 88%
RAL 85%
23. Snapshot por estrato de randomización
DTG
50 mg QD
DRV/r
800 mg/
100 mg QD
en la semana 48
A favor
DRV/r
A favor
DTG
Globala n=484 90% 83%
HIV-1 RNA
basalb
≤100.000 c/mL
100.000 c/mL
n=362
n=122
88%
93%
87%
70%
Nucleósidosb
ABC/3TC
TDF/FTC
n=159
n=325
90%
90%
85%
81%
Estudio FLAMINGO: DTG vs DRV/r en pacientes naïve
Proporción (IC 95%) de individuos con
RNA VIH-1 50 c/mL en el tiempo-snapshot
100%
90%
80%
70%
60%
50%
40%
30%
20%
10%
DTG: 90%
0,9 7,113,2
*Diferencia ajustada (DTG-DRV/r) basada en un análisis estratificado CMH ajustando por
HIV RNA basal y los nucleósidos acompañantes.
Resultados confirmados en el análisis por protocolo: 91% DTG vs. 84% DRV/r, Δ (IC):
7,4 (1,4 – 13,3).
-40-30-20-10 0 10 20 30 40 50
Diferencia en la proporción (DGT – DRV/r)
Feinberg J. et al. ICAAC. Denver, 10-13 Septiembre 2013. #1464a
0%
Proporción (%)
BL 4 8 12 16 24
Semanas
36 48
DTG 50 mg QD
DRV/r 800 mg/100 mg QD
DRV/r: 83%
95% IC para la diferencia*
A favor
DRV/r
A favor
DTG
-20% -12% 0 20%
Test de superioriad: P=0,025
Se demostró superioridad global
60
aDiferencia ajustada (DTG-DRV/r) basada en un análisis estratificado Cochran-Mantel-
Haenszel ajustando por HIV RNA basal y los nucleósidos acompañantes. .
bLas diferencias no ajustadas apoyan la no-inferioridad de DTG vs DRV/r en los estratos de
HIV-1 RNA basal y de nucleósidos acompañantes.
24. SINGLE Study. Virologic Suppression (HIV-1 RNA 50
c/mL; FDA Snapshot)
DTG: 80%
EFV: 72%
Week 96 adjusted difference in response (95% CI):
+8.0% (+2.3% to +13.8%); P=0.006
4 8 1216 24 32 40 48 60 72 84 96
Walmsley et al. CROI 2014; Boston, MA. Poster 543.
25. Resistance Mutations in Individuals Who Met PDVF
Criteria
TE = treatment emergent
*n=1 with K101E, n=1 with K103N, n=2 with K103K/N, n=1 with G190A and n=1 with
K103N + G190A
**E157Q/P polymorphism detected with no significant change in IN phenotypic
susceptibility
Walmsley et al. CROI 2014; Boston, MA. Poster 543.
Mutation
DTG + ABC/3TC QD
(n=414)
EFV/TDF/FTC QD
(n=419)
NRTI TE major mutations 0 1 (K65R)
NNRTI TE major mutations 0 6 (K101E, K103N,
G190A)*
INI-r TE major substitution 0** 0
30. NEAT 001/ANRS 143 Renal safety
Creatinine clearance (eGFR, ml/min [Cockroft-Gault formula]
Mean (95% CI) change from baseline
5
0
-5
-10
-15
+ 0.9
0 4 8 12 18 24 32 48 64 80 96
Weeks
RAL + DRV/r TDF/FTC + DRV/r
No grade 2-4 creatinine elevation in either arm
- 3.8
p=0.02
31. Estudio Gardel: LPV/r + 3TC
GGAARRDDEELL:: DDeessiiggnn
– Phase III, randomized, international , controlled, open-label study
– Study included adult patients from Argentina, Chile, Mexico, Peru, Spain, US.
Cahn P, et al. EACS, 2013. Brussels, Belgium.
Wk 24
interim analysis
DT:
LPV/r 400/100mg BID
+ 3TC 150 mg BID
(n=217)
TT:
LPV/r 400/100mg BID
+ 3TC or FTC and a
third investigator-selected NRTI in
fixed-dose combination
(n=209)
Stratified by screening
HIV-1 RNA
(≤ or 100,000 copies/mL)
ARV- naive patients,
³18 years
HIV-1 RNA
1000 copies/ml
No IAS-USA defined NRTI
or PI resistance at
screening*
HB(s)Ag negative
(N = 426)
Wk 48
primary endpoint
*Defined as 1 major or 2 minor LPV/r mutations)
LPV major mutations include the following mutations: V32I; I47V/A; L76V; V82A/F/T/S
35. STRATEGY - PI
Study Design
Multicenter, randomized, open-label, 96-week study
n =293
n =140
STRATEGY-PI
• HIV-1 RNA 50 c/mL for ≥6 months
• ≤ 2 prior ARV regimens
• No resistance to FTC or TDF
• eGFRCG ≥70 mL/min
2:1
E/C/F/TDF (Stribild®)
PI + RTV + FTC/TDF
PI + RTV + FTC/TDF
Week 48 Week 96
Primary endpoint: HIV-1 RNA 50 c/mL at Week 48 by Snapshot (noninferiority margin of
12%). If noninferiority is established, then superiority will be tested.
Secondary endpoint: Safety and tolerability at Week 48 96
Other endpoints: Patient reported outcomes*
*HIV Symptom Index and HIV Treatment Satisfaction questionnaires
E/C/F/TDF: single-tablet regimen elvitegravir 150mg, cobicistat 150mg, emtricitabine 200mg, tenofovir DF 300mg; Stribild®
PI + RTV + FTC/TDF: ritonavir-boosted protease inhibitor and emtricitabine/tenofovir DF
Study GS-US-236-0115 is registered with ClinicalTrials.gov, number NCT01475838.
36. STRATEGY - PI
PI and Number of Prior Regimens at Randomization
Reasons subject choose to enroll in study
Desire to simplify current regimen 86%
Concerned about long-term side effects of current regimen 12%
ATV, atazanavir, DRV, darunavir; FPV, fosamprenavir; LPV, lopinavir; SQV, saquinavir
37. 95% CI for Difference
Favors
E/C/F/TDF
0.4 13.7
12%
Favors
STRATEGY - PI
Primary Endpoint: HIV-1 RNA 50 c/mL
E/C/F/TDF (n=290) PI + RTV + FTC/TDF (n=139)
PI + RTV + FTC/TDF
6.7
-12% 0
Percentage of Subjects (%)
94%
1%
6%
87%
1%
12%
100
90
80
70
60
50
40
30
20
10
0
Virologic Success
W48
Virologic Failure
W48
No Virologic Data
W48
Prespecified sequential testing
Statistical superiority
(p = 0.025)
CD4 Cell Count (cells/mm3) Baseline
(mean)
ΔWeek 48
(mean)
P-value
(Δ W48 - BL)
E/C/F/TDF 603 +40 0.001
PI + RTV + FTC/TDF 625 +32 =0.025
Full analysis set excluded subjects with protocol-prohibited mutations on historical genotype and those not on PI at randomization.
38. STRATEGY – PI
Patient Reported Outcomes
% of Subject Reporting Symptoms
HIV Symptom Index
Diarrhea
100
126
284
132
222
** *
77
260
68
211
56
133
63
102
53
116
53
87
108
283
84
223
Bloating
Baseline
E/C/F/TDF
PI + RTV + FTC/TDF
86
264
41
208
PI + RTV + FTC/TDF
BL W48 BL W48 BL W48 BL W48
Subjects who switched to E/C/F/TDF from PI + RTV + FTC/TDF had
Week 48
E/C/F/TDF
44
134
32
101
48
118
38
87
Lower rates of diarrhea and bloating at Week 48 compared to baseline
Higher treatment satisfaction scores at Week 24 (mean: 23 vs. 15, p 0.001)^
34
100
*P 0.04 **P 0.001 (comparison with baseline within each treatment group). Decreases noted at week 4 sustained to week 48.
P 0.001, diarrhea P=0.019, bloating (comparison of changes from baseline at week 48 between treatment group).
^ HIV Treatment Satisfaction questionnaire, score range: -30 to 30
39. STRATEGY - NNRTI
Study Design
Multicenter, randomized, open-label, 96-week study
n =291
n =143
STRATEGY-NNRTI
• HIV-1 RNA 50 c/mL for ≥6 months
• ≤ 2 prior ARV regimens
• No resistance to FTC or TDF
• eGFRCG ≥70 mL/min
2:1
E/C/F/TDF (Stribild®)
NNRTI + FTC/TDF
NNRTI + FTC/TDF
Week 48 Week 96
Primary endpoint: HIV-1 RNA 50 c/mL at Week 48 by Snapshot (noninferiority margin of
12%). If noninferiority established, test for superiority
Secondary endpoint: Safety and tolerability at Week 48 96
Other endpoints: Patient reported outcomes*
*Expanded HIV Symptom Index and HIV Treatment Satisfaction questionnaires
E/C/F/TDF: single-tablet regimen elvitegravir 150mg, cobicistat 150mg, emtricitabine 200mg, tenofovir DF 300mg; Stribild®
NNRTI + FTC/TDF: non-nucleoside reverse transcriptase inhibitor and emtricitabine/tenofovir DF
Study GS-US-236-0121 is registered with ClinicalTrials.gov, number NCT01495702.
44. Study
Effect size (CI)
TDF/FTC oral-PrEP in MSM
(iPrEx, Grant et al 2010)
Medical male circumcision
(MMC) (Orange Farm, Rakai, Kisumu)
44% (15, 63)
57% (42, 68)
Prime-boost HIV
Vaccine (Thai RV144)
31% (1, 51)
0% 10 20 30 40 50 60 70 80 90 100% Efficacy
1% tenofovir gel
(Caprisa 004, Karim et al.)
39% (6, 60)
Immediate ART for positive
Partners (HPTN052)
*Provisional
96% (82, 99)*
TDF/FTC oral-PrEP in
heterosexuals (TDF2, CDC)
TDF oral-PrEP in serodiscordant
Partner (Partners PrEP)
63% (22, 83)*
TDF/FTC oral-PrEP in serodiscordant
Partner (Partners PrEP)
62% (34, 78)*
73% (49, 85)*
Profilaxis pre-exposición al VIH
45. Partner Cohort Study
Estudio en 1.140 parejas serodiscordantes, 40% HSH.
Criterios para incluir en el estudio
– Manifestar que realizaban relaciones sexuales sin preservativo
– No seguir estrategias de profilaxis pre-exposición o postexposición
Análisis a 767 parejas
Al inicio del estudio
– Los VIH de las parejas HSH llevan TAR con una media de 5 años
– Los VIH de las parejas HTS llevaban TAR entre 7-10 años
Se realizaron: 16.400 RS entre los HSH y 28.000 en los HTS
– No transmisión del virus dentro de la pareja
Riesgo de transmisión con un IC95% del 0,45% anual general y 1% en
el caso de las RS anales
No son datos definitivos: el estudio finaliza en el año 2017
Author’s Last Name, Conference Name, Year, Presentation # 45
47. Consenso sobre el inicio del tratamiento:
Recomendaciones de GESIDA 2014
48. Consenso sobre el inicio del tratamiento:
Recomendaciones de la DHHS
Recuento
de CD4
(cél/mm3)
DHHS 2013
350 TAR recomendado (AI)
350 a 500 TAR recomendado (AII)
500 TAR recomendado (BIII)
53. OBJETIVOS
o Analizar la valoración que los pacientes con VIH en España hacen
de las diferentes características del tratamiento antirretroviral
(TARV)
o Estudiar el perfil de los pacientes, sus necesidades de información,
la relación médico-paciente y su bienestar.
54. MÉTODO
DISEÑO Encuesta transversal
MUESTRA 370 personas con VIH
PROCEDIMIENT
O
Recogida datos en 6 hospitales:
-Mutua Terrassa (BCN), Miguel Servet (ZGZ),
Reina Sofía (Córdoba), Xeral (Vigo), Universitario
(La Coruña)
VARIABLES
(a)Datos socio-demográficos , (b) Datos sanitarios
(c) Información sobre el VIH, (d) características
TARV, (e) Relación médico-paciente, (f) Bienestar