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THERAPY OF IPF Venerino Poletti Ospedale GB Morgagni , Forlì. Conflicts of Interest Italian & European Intermune Advisory Board. Idiopathic P u lmonary Fibrosis. - incidence: 10/100 000 Severe UIP pattern. (Bjoraker, AJRCCM 1998;157: 199-203). Responders : -Younger
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THERAPY OF IPF Venerino Poletti Ospedale GB Morgagni, Forlì
Conflictsof Interest Italian & EuropeanIntermuneAdvisoryBoard
Idiopathic Pulmonary Fibrosis • - incidence: 10/100 000 • Severe • UIP pattern (Bjoraker, AJRCCM 1998;157: 199-203)
Responders : -Younger - Histology : Cellular N=220
Responders : -Younger - Histology : Cellular
Prednisone + Azathioprine p = 0,02 Prednisone (Raghu, ARRD 1991;144:291-6)
IFIGENIA NAC slows the rate of decline of lung function in patients treated with prednisone + azathioprine Δ CV: 180 ml (4,8%)P = 0,017 Δ DLCO : 0,75 (5%)P = 0,003 Mortality : 9% vs 11% (Demedts, NEJM 2005)
Before 2011,Prednisone + AZA + NAC=the therapeutic standard in IPF • Experts (ATS/ERS 2000 consensus) • IFIGENIA study
Before 2011,Prednisone + AZA + NAC=the therapeutic standard in IPF …But No placebo study • Experts (ATS/ERS 2000 consensus) • IFIGENIA study
Pred + AZA + NAC N=390 60 weeks NAC Placebo PANTHER trialIPF Network NIH • IPF mild to moderate (FVC> 50%;DLCO > 30%; Dc <4 years) Prednisone 0.50.15 mg/kg 25wks Azathioprine : 150 mg/d maxi NAC : 600 mg x3/d (IPFNet, NEJM 2012)
Increased mortality in treated patients (IPFNet, NEJM 2012)
Increased mortality and hospitalization rate (IPFNet, NEJM 2012)
IFIGENIA Mortality : 9% vs 11% No difference in lung function (IPFNet, NEJM 2012)
Before 2011,Prednisone + AZA + NAC=the therapeutic standard in IPF Not supported by placebo controlled study
First lesson Avoiding the use of steroids and immunosuppressants : A simple way to improve patients survivalBut…is it always true?
Second lesson Placebo controlled trials are the only way to validate a treatment (old or new…) • Need to convince patients and doctors • Do not count only on pharma companies academic trials may fill some gaps
Corticosteroids and Cyclophosphamide in IIPs • methylprednisolone IV 1g/d x3d/week x 4 weeks • oral CPM : 1-2 mg/kg.d + Pred 20 mg/d 1d/2 • Mean duration: 21 months 27 IPF 12 fibrotic NSIP Improved Stabilized Worsened Bolus IPF 15% 81% 4% NSIP 33% 67% 0% 12 months IPF 15% 52% 33% NSIP 67% 33% 0% Suivi IPF 0% 26% 74% (deaths : 67%) NSIP 42% 33% 25% (Kondoh, ERJ 2005)
Corticosteroidsand IS in NSIP 38% (5% change) 34% 28% N=30 N=29 6 monthly IV CPM 0.6g/m2 Prednisolone : 10±5mg/d Steroids 90% I°suppressants 79% Corte, Sarcoidosis 2009 Kinder, Lung 2010
Unsolvedquestions • Are steroids/CPM alwaysuseless or dangerous in IPF patients? • Isthere a subgroupofpatientswith “inflammation” thatmighthave benefit fromsteroids/CPM? • No clinicaltrialsavailable up tonow!!!
etanerceptRaghu, AJRCCM 2008;178:948-55 interferon-gammaKing, Lancet 2009;374:222-228 imatinib (2010)Daniels, AJRCCM 2010;181:604-10 bosentan (BUILD-2011)King AJRCCM 2011;184:92-99 macitentan (MUSIC-2011)http://www1.actelion.com/en/our-company/news-and-events/index.page?newsId=1541790 ambrisentan (ARTEMIS-2010) IPF and IPF-PHThttp://www.gilead.com/pr_1510358 warfarin (ACE-IPF)Noth, AJRCCM 2012; We have learned from the negative trials
etanerceptRaghu, AJRCCM 2008;178:948-55 interferon-gammaKing, Lancet 2009;374:222-228 imatinib (2010)Daniels, AJRCCM 2010;181:604-10 bosentan (BUILD-2011)King AJRCCM 2011;184:92-99 macitentan (MUSIC-2011)http://www1.actelion.com/en/our-company/news-and-events/index.page?newsId=1541790 ambrisentan (ARTEMIS-2010) IPF and IPF-PHThttp://www.gilead.com/pr_1510358 warfarin (ACE-IPF)Noth, AJRCCM 2012; We have learned from the negative trials Under- powered (N=88)
etanerceptRaghu, AJRCCM 2008;178:948-55 interferon-gammaKing, Lancet 2009;374:222-228 imatinib (2010)Daniels, AJRCCM 2010;181:604-10 bosentan (BUILD-2011)King AJRCCM 2011;184:92-99 macitentan (MUSIC-2011)http://www1.actelion.com/en/our-company/news-and-events/index.page?newsId=1541790 ambrisentan (ARTEMIS-2010) IPF and IPF-PHThttp://www.gilead.com/pr_1510358 warfarin (ACE-IPF)Noth, AJRCCM 2012; We have learned from the negative trials A mortality study is feasible Placebo minimal changes in FVC, 6MWT distance, …
etanerceptRaghu, AJRCCM 2008;178:948-55 interferon-gammaKing, Lancet 2009;374:222-228 imatinib (2010)Daniels, AJRCCM 2010;181:604-10 bosentan (BUILD-2011)King AJRCCM 2011;184:92-99 macitentan (MUSIC-2011)http://www1.actelion.com/en/our-company/news-and-events/index.page?newsId=1541790 ambrisentan (ARTEMIS-2010) IPF and IPF-PHThttp://www.gilead.com/pr_1510358 warfarin (ACE-IPF)Noth, AJRCCM 2012; We have learned from the negative trials “The ideal treatment could fail” Validated in state of the art models Plausible pathophysiology
etanerceptRaghu, AJRCCM 2008;178:948-55 interferon-gammaKing, Lancet 2009;374:222-228 imatinib (2010)Daniels, AJRCCM 2010;181:604-10 bosentan (BUILD-2011)King AJRCCM 2011;184:92-99 macitentan (MUSIC-2011)http://www1.actelion.com/en/our-company/news-and-events/index.page?newsId=1541790 ambrisentan (ARTEMIS-2010) IPF and IPF-PHThttp://www.gilead.com/pr_1510358 Warfarin (ACE-IPF)Noth, AJRCCM 2012; We have learned from the negative trials Raghu (ATS 2012) Disease progression Hospitalization Mortality (trend)
etanerceptRaghu, AJRCCM 2008;178:948-55 interferon-gammaKing, Lancet 2009;374:222-228 imatinib (2010)Daniels, AJRCCM 2010;181:604-10 bosentan (BUILD-2011)King AJRCCM 2011;184:92-99 macitentan (MUSIC-2011)http://www1.actelion.com/en/our-company/news-and-events/index.page?newsId=1541790 ambrisentan (ARTEMIS-2010) IPF and IPF-PHThttp://www.gilead.com/pr_1510358 Warfarin (ACE-IPF)Noth, AJRCCM 2012; We have learned from the negative trials Be careful with preclinical data
Pirfenidone: the past • 54 IPF patients • Deterioration with steroids ± I°S • TLC 58 ± 16 % • DLCO 34 ± 17 % Pirfenidone: 40 mg/kg (maxi 3600 mg/j) Stop CS and I°S within 8 weeks (Raghu, AJRCCM 1999;159:1060)
Pirfenidone, 24 months TLC FVC DLCO SpO2 O2 (Raghu, AJRCCM 1999;159:1060)
Pirfenidone • Pirfenidone: • Antifibrotic, antioxidant, anti-TNF • Different experimental models :heart, lung, kidney fibrosis • A series of four randomized controlled studies: (>1100 patients)
FVC decline Grouped analysis % patients with ΔFVC > 10% • Progression free survival RR=0.74 P=0.025 • Distance 6MWT Δ=24m P=0.009 • Positive trend for mortality reduction (Noble, Lancet 2011;377:1760)
Not approved by FDA (ASCEND trial ongoing) • Europeanapproval 3rd March 2011 (Esbriet®) • « Mild to moderate IPF » • Commerciallyavailable in Germany sinceseptember 2011 • NPP in Italy, GB, and othereuropean countries • Available in France sinceOctober 2012
The pirfenidone lessons • A trial can be positive in IPF
The pirfenidone lessons • A trial can be positive in IPF • A drug without target may work
The pirfenidone lessons • A trial can be positive in IPF • A drug without target may work • A drug that works in the bleomycin model can work in humans
The pirfenidone lessons • A trial can be positive in IPF • A drug without target may work • A drug that works in the bleomycin model can work in humans • An IPF drug costs > 24.000 €/year
NAC (600 mg x3/d) N=260 60 weeks Placebo PANTHER trial – Is NAC effective ? Results expected end 2013
BIBF 1120 (nintedanib, Vargatef®) : multi-target Tyrosine Kinase inhibitor Triple angiokinase Inhibitor Involved in IPF pathogenesis Hilberg, Cancer Res 2008
The TOMORROW study (Richeldi, NEJM 2011;365:1079) Placebo BIBF 1120-300mg P value N=85 N=85 FVC 12 mo - 190 ml - 60 ml 0,013 Exacerbations 15,7 % 2,4 % 0,02 SGRQ +5,46 -0,66 0,0007 -68% GI side effects (drug stop) Diarrhea 11,8% vs 0% Nausea 4,7% vs 0% Vomiting 2,4% vs 1,2% Two Phase 3 trials (Inpulsis) Results expected end 2013
nintedanib • If phase III studies are positive… • Target multiple pathways in IPF treatment • The bleomycin model isvalid
A non exhaustive list ot targets Anti-TGFβ Fresolimumab (Sanofi-Genzyme, Phase1) Anti CTGF FG-3019 (Fibrogen, Phase2) Anti-CCL2 CNTO 888 (Phase 2) Anti-IL-13 QAX-576 (Novartis, Phase 2) Tralokinumab (AZ-MedImmune, Phase 2) Anti-IL-4, IL-13 SAR156597 (Sanofi, Phase 2) JNKi CC-930 (Celgene, Phase 2) Anti-αvβ6 STX-100 (Stromedix, Phase 2) Anti LOXL2 simtuzumab (Gilead, Phase 2) SAP PRM-151 (Promedior, Phase 2) CO inhalé Phase 2 MMPs minocycline Anti-LTs zileuton Interferon alpha Phase 1 (Thorax 2011) Aerosolized IFNγ Phase 2 Collagen V IW001 (Immuneworks, Phase 1) Octreotide FIBROSAND (Phase 2) ERJ 2012 PI3Kinase GSK2126458 (GSK, Phase 1) Sirolimus Serotonin, LPA1, losartan, …
A non exhaustive list ot targets Anti-TGFβ Fresolimumab (Sanofi-Genzyme, Phase1) Anti CTGF FG-3019 (Fibrogen, Phase2) Anti-CCL2 CNTO 888 (Phase 2) Anti-IL-13 QAX-576 (Novartis, Phase 2) Tralokinumab (AZ-MedImmune, Phase 2) Anti-IL-4, IL-13 SAR156597 (Sanofi, Phase 2) JNKi CC-930 (Celgene, Phase 2) Anti-αvβ6 STX-100 (Stromedix, Phase 2) Anti LOXL2 simtuzumab (Gilead, Phase 2) SAP PRM-151 (Promedior, Phase 2) CO inhalé Phase 2 MMPs minocycline Anti-LTs zileuton Interferon alpha Phase 1 (Thorax 2011) Aerosolized IFNγ Phase 2 Collagen V IW001 (Immuneworks, Phase 1) Octreotide FIBROSAND (Phase 2) ERJ 2012 PI3Kinase GSK2126458 (GSK, Phase 1) Sirolimus Serotonin, LPA1, losartan, …
Is bacterial Infection/colonization a target in IPF ? Apoptosis cotrimoxazole : 960mg x 2/j Folic acid: 5mg/j
cotrimoxazole (Shulgina, Thorax 2012; on line First) • No effect on • Lung function • 6MWT • Dyspnea (MRC) • Mortality • Improvement of • the SGRQ • -6.88 (-12.06; -1.70) • p=0.009 Survie NS
cotrimoxazole (Shulgina, Thorax 2012; on line First) 3/53 • Improvement of • mortality in the • per-protocol • population 14/65 HR: 0.21 (IC95%: 0.06-0.78) p=0.02 Survie
cotrimoxazole (Shulgina, Thorax 2012; on line First) Infection Placebo Bactrim P (n,%) (n,%)
Failure of monotargeted therapies Next step ? Others... nintedanib pirfenidone 2013