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Drug Induced Liver Injury Drug Induced Liver Injury Network (DILIN) Prospective Network (DILIN) Prospective Study: Initial ResultsStudy: Initial Results
Naga Chalasani, MD Naga Chalasani, MD for the for the
Drug Induced Liver Injury Drug Induced Liver Injury NetworkNetwork
BackgroundBackground
Although DILI is a rare clinical Although DILI is a rare clinical event, it is the most common event, it is the most common cause of acute liver failure in the cause of acute liver failure in the USUS
DILI is one of the most common DILI is one of the most common causes for medication withdrawal causes for medication withdrawal or lack of approval by the FDAor lack of approval by the FDA
A significant barrier for drug A significant barrier for drug developmentdevelopment
BackgroundBackground
Its epidemiology, Its epidemiology, etiopathogenesis, diagnosis, and etiopathogenesis, diagnosis, and natural history are poorly natural history are poorly understoodunderstood
DILIN is a federally funded DILIN is a federally funded consortium of 5 clinical centers consortium of 5 clinical centers and DCCand DCC
DILINDILIN
Duke Clinical ResearchDuke Clinical Research Institute (PI – Rochon) Institute (PI – Rochon)
U. Conn (PI - Bonkovsky)U. Conn (PI - Bonkovsky) U. Mich (PI - Fontana)U. Mich (PI - Fontana) IU (PI- Chalasani)IU (PI- Chalasani) UNC (PI- Watkins)UNC (PI- Watkins) UCSF (PI-Davern)UCSF (PI-Davern) NIDDK (Serrano, Seeff, Hoofnagle)NIDDK (Serrano, Seeff, Hoofnagle)
Clinical Centers
Data Coord. Ctr.
DILIN: Scope of RecruitmentDILIN: Scope of Recruitment
~12.8 million lives~12.8 million lives~12.8 million lives~12.8 million lives
UCSF
U Mich
IUU Conn
UNC
AimAim
To report the initial findings of the To report the initial findings of the etiology and clinical etiology and clinical characteristics of patients with characteristics of patients with drug induced liver injury (DILI) drug induced liver injury (DILI) enrolled into the enrolled into the “DILIN “DILIN Prospective Study”Prospective Study”
DILIN Prospective DILIN Prospective StudyStudy Multicenter, prospective, and Multicenter, prospective, and
observational studyobservational study Patients with suspected Patients with suspected
idiosyncratic DILI with no idiosyncratic DILI with no competing etiology occurring competing etiology occurring within 6-months are eligiblewithin 6-months are eligible
DILI due to acetaminophen were DILI due to acetaminophen were not includednot included
Eligibility CriteriaEligibility Criteria
Children ≥ 2 years and adultsChildren ≥ 2 years and adults Pre-defined biochemical criteria Pre-defined biochemical criteria
- AST or ALT > 5 ULN twice - AST or ALT > 5 ULN twice consecutivelyconsecutively
- Alk Phos > 2 ULN twice consecutively- Alk Phos > 2 ULN twice consecutively
- Bilirubin ≥ 2.5 mg/dl- Bilirubin ≥ 2.5 mg/dl
- Specific criteria for patients with pre-- Specific criteria for patients with pre-existing liver diseaseexisting liver disease
MethodsMethods
Patients were seen in the GCRCPatients were seen in the GCRC Patients followed up to 24 months Patients followed up to 24 months
depending on their biochemistries depending on their biochemistries at 6 months after enrollmentat 6 months after enrollment
Extensive baseline evaluations to Extensive baseline evaluations to exclude competing etiologiesexclude competing etiologies
Samples of serum, urine, DNA, Samples of serum, urine, DNA, and peripheral lymphocytes and peripheral lymphocytes
Causality AssessmentCausality Assessment
A panel of study hepatologists A panel of study hepatologists systematically assessed the systematically assessed the strength of causal relationship strength of causal relationship between implicated agent and liver between implicated agent and liver injuryinjury
RUCAM, DILIN-specific causality RUCAM, DILIN-specific causality grading, data completeness forms grading, data completeness forms are filled by 3 hepatologistsare filled by 3 hepatologists
Causality finally assessed based on Causality finally assessed based on consensusconsensus
Chronic DILIChronic DILI
Persistent biochemical Persistent biochemical abnormalities at 6 months abnormalities at 6 months following the onset of acute DILIfollowing the onset of acute DILI
Histological or radiological or Histological or radiological or clinical evidence of chronic liver clinical evidence of chronic liver disease at 6 monthsdisease at 6 months
Patients with known HCV or HBV Patients with known HCV or HBV or cirrhosis were not assessed or cirrhosis were not assessed for chronic DILIfor chronic DILI
Total Enrollment (9/04 – Total Enrollment (9/04 – 8/06)8/06)
TotalTotal
U ConnU Conn 3939
IndianaIndiana 5454
UCSFUCSF 3535
MichiganMichigan 5252
UNCUNC 5353
TotalTotal 233233
Although 233 patients were enrolled, data from 169 patients were available for this presentation
DemographicsDemographics
Age (mean ± S.D.)Age (mean ± S.D.) 48.3 ± 18.648.3 ± 18.6
FemalesFemales 60%60%
African-AmericansAfrican-Americans 13%13%
BMI (Kg/m2, mean ± BMI (Kg/m2, mean ± S.D.)S.D.)
27 ± 727 ± 7
ChildrenChildren 9%9%
Pre-existing liver Pre-existing liver diseasedisease
16%16%
PercentPercent
HepatocellularHepatocellular 53%53%
CholestaticCholestatic 22%22%
Mixed Mixed 25%25%
Pattern of Liver InjuryPattern of Liver Injury
%%
Single Rx Drug Single Rx Drug 7474
Single CAM Single CAM 44
Multiple Drugs / Multiple Drugs / CAMCAM 2222
Implicated DILI Drugs / CAMImplicated DILI Drugs / CAM
Drug Class for Drug Class for SingleSingle Implicated Implicated AgentAgent
Drug ClassDrug Class %%
AntimicrobialsAntimicrobials 4040
AnticonvulsanAnticonvulsantsts
77
AntineoplasticAntineoplastics s 44
AntidepressanAntidepressantsts
44
NSAIDsNSAIDs 44
Drug ClassDrug Class %%
Gen.anesthestiGen.anesthesticscs 33
Choles-Choles-loweringlowering 55
Peptide-Peptide-biologicsbiologics 55
CAM ProductsCAM Products 66
OthersOthers 2222
Implicated Antimicrobials – Implicated Antimicrobials – Single agent DILISingle agent DILI
Bactrim (9)Bactrim (9)
Augmentin (17)Augmentin (17)
Macrobid (14)Macrobid (14)
Ketek (5)Ketek (5)
Levaquin (5)Levaquin (5)
Anti-retroviral (9)Anti-retroviral (9)
Anti TB (12)Anti TB (12)
Signs and SymptomsSigns and Symptoms
%%
JaundiceJaundice 6666
NauseaNausea 5959
AnorexiaAnorexia 5151
Dark UrineDark Urine 6868
FeverFever 3131
Abdominal Abdominal PainPain 4848
%%
VomitingVomiting 3636
RashRash 2727
ItchingItching 4949
ΔΔ Mental Mental StatusStatus 2323
Any Any symptomssymptoms 9696
%%
HepatomegalyHepatomegaly 88
LymphadenopatLymphadenopathyhy 22
Extrahepatic Extrahepatic ManifestationsManifestations 1010
Liver Biopsy:Liver Biopsy: 5050
Steroid Steroid treatmenttreatment 1818
Signs and SymptomsSigns and Symptoms
OnsetOnset PeakPeak
AST (IU/L)AST (IU/L) 652 ± 831 652 ± 831 962 ± 2116 962 ± 2116
ALT ALT (IU/L)(IU/L) 722 ± 835 722 ± 835 907 ± 980 907 ± 980
Alk Pho Alk Pho (IU/L)(IU/L) 287 ± 256 287 ± 256 407 ± 412 407 ± 412
Bilirubin Bilirubin (mg/dl)(mg/dl) 5.3 ± 5.55.3 ± 5.5 10.5 ± 1010.5 ± 10
Biochemistries (Biochemistries (mean ± mean ± s.d.)s.d.)
PercentPercent
DefiniteDefinite 28%28%
Very LikelyVery Likely 43%43%
ProbableProbable 13%13%
PossiblePossible 15%15%
UnlikelyUnlikely 1.5%1.5%
Final Causality Assessment Final Causality Assessment (n=68)(n=68)
Outcome Reported to Outcome Reported to the DCC Thus Farthe DCC Thus Far
Death (within 6 Death (within 6 months)months)
12.7%12.7%
Liver Transplant Liver Transplant (event related up to 6 (event related up to 6 months)months)
2%2%
Chronic DILIChronic DILI 20%20%
Conclusions (1)Conclusions (1)
Our prospective study represents Our prospective study represents a systematic effort to recruit a systematic effort to recruit patients with clinically important patients with clinically important DILI in a robust fashionDILI in a robust fashion
Antimicrobials and Antimicrobials and anticonvulsants are the most anticonvulsants are the most common classes of agents to common classes of agents to cause DILIcause DILI
Conclusions (2)Conclusions (2)
The incidence of chronic DILI is The incidence of chronic DILI is higher than previously anticipatedhigher than previously anticipated
Extensive clinical data and Extensive clinical data and biosamples are available for biosamples are available for conducting clinical and conducting clinical and mechanistic ancillary studies mechanistic ancillary studies including genetic analysis to including genetic analysis to predict risk factors and outcomepredict risk factors and outcome
DILIN Team of DILIN Team of InvestigatorsInvestigators
NIDDKNIDDKJose Serrano, MDJose Serrano, MDLeonard Seeff, MDLeonard Seeff, MDJay Hoofnagle, MDJay Hoofnagle, MD
DCCDCCJim Rochon, PhDJim Rochon, PhDJohn McHutchison, MDJohn McHutchison, MDDon Rockey, MDDon Rockey, MDKatherine BereznyKatherine Berezny
U. ConnU. ConnHerb Bonkovsky, MDHerb Bonkovsky, MDBob Rosson, MDBob Rosson, MDJim Freston, MDJim Freston, MDLaura GlynnLaura Glynn
UNCUNCPaul Watkins, MDPaul Watkins, MDPaul Hiyashi, MDPaul Hiyashi, MDSusan PusekSusan Pusek
IUIUNaga Chalasani, MDNaga Chalasani, MDLarry Lumeng, MDLarry Lumeng, MDAudrey Corne, RNAudrey Corne, RN
UCSFUCSFTim Davern, MDTim Davern, MDM. Bonacini, MDM. Bonacini, MDDalia MowadDalia Mowad
U. MichU. MichBob Fontana, MDBob Fontana, MDH. Conjeevaram, MDH. Conjeevaram, MDSuzanne WelchSuzanne Welch