buprenorphine: introduction (and induction)
DESCRIPTION
Buprenorphine: Introduction (and Induction). Adam J. Gordon, MD, MPH, FACP, FASAM University of Pittsburgh School of Medicine VA Pittsburgh Healthcare System [email protected]. Drug Abuse Treatment Act (DATA) of 2000. - PowerPoint PPT PresentationTRANSCRIPT
Buprenorphine: Introduction (and Induction)
Adam J. Gordon, MD, MPH, FACP, FASAMUniversity of Pittsburgh School of Medicine
VA Pittsburgh Healthcare [email protected]
Drug Abuse Treatment Act (DATA) of 2000
• Allowed “Qualified” physicians to treat opioid dependence outside methadone facilities1. Addiction certification from approved organization, or2. Physician in clinical trial of qualifying medication, or3. Complete 8-hour course from approved organization
• DEA issues (free) to qualifying physicians a new DEA number to use medication for opioid dependence
• As of today, only one medication formulation is approved for this use
Opioid Treatment: Changing Approach
Methadone Clinic Office-Based treatments• Criteria:
Withdrawal12 months use
• Criteria:DSM IVNo time criteria
• Dose regulated • MD sets dose
• Age > 18 • Age > 16
• Limited take homes • Take homes (30 days)
• Services “required” • Services must be “available”
Gordon, Counterdetails, 2006
Buprenorphine Properties• Partial-agonist
• Less reinforcing than a full agonist-milder effects• Easier withdrawal• Safety – overdose ceiling effect
• High affinity to the opiate receptor• Long duration of action (24-72hr)• Strong safety profile
• Little respiratory depression• Little overdose potential
-10 -9 -8 -7 -6 -5 -40
10
20
30
40
50
60
70
80
90
100
“Activity” or “Response”
Log DOSE
Full Agonist(Methadone)
Partial Agonist(Buprenorphine)
Antagonist (Naloxone)
Buprenorphine’s Properties:Partial Agonist
Gordon, Counterdetails 2006
Buprenorphine Properties:High Affinity
Gordon, Counterdetails, 2006
Buprenorphine Formulations• Formulations and routes
• BUPRENEX IV NOT for Opioid Dependence • Long history within Anesthesiology• History of use as mild analgesic
• SUBUTEX SL - Buprenorphine• 2 mg tablet• 8 mg tablet• Really one indication… (Pregnancy)
• SUBOXONE SL – Buprenorphine/Naloxone• 2mg/0.5mg tablet• 8mg/2mg tablet
• (Buprenorphine Transdermal)• (Buprenorphine Depot Injection)
Diversion potential: Buprenorphine/Subutex
Incorrect Incorrect CorrectRoute Oral IV (diversion) SublingualBuprenorphine Absorbed? NO YES YESNaloxone Absorbed? NO YES!!! NO !Outcome
(No Action)Pt:
MD: !
PO SLIV
Gordon, Counterdetails, 2006
Rationale for Naloxone+Buprenorphine(Suboxone)
Incorrect Incorrect CorrectRoute Oral IV (diversion) SublingualBuprenorphine Absorbed? NO YES YESNaloxone Absorbed? NO YES!!! NO !Outcome
(No Action)
(withdrawal)!
PO SLIV
Gordon, Counterdetails, 2006
Most often heard quote with Buprenorphine
“Doc, I feel normal”
• Treatment in normal medical settings:• Encourages continuity of medical/specialty care• Encourages relationship building with clinicians• Legitimize opioid dependence as a normal, treatable,
chronic illness
Buprenorphine: Treatment RetentionPe
rcen
t Ret
aine
d
0
20
40
60
80
100
1 2 3 4 5 6 7 8 9 1011121314151617
20% LO METH
58% BUP
73% HI METH
53% LAAM
Study Week
Johnson R, NEJM 2000
Buprenorphine: “Clean” UrinesM
ean
% N
egat
ive
Study Week
All Subjects
LO METH
BUPHI METH
LAAM
1 3 5 7 9 11 13 15 170
20
40
60
80100
19%
40%
39%
49%
Johnson R, NEJM 2000
Buprenorphine: Retention and Mortality
All Patients received group CBT Relapse Prevention, Weekly
Individual Counseling, 3x Weekly Urine Screens. n=20 per group
Treatment duration (days)
Remaining in treatment (nr)
0
5
10
15
20
0 50 100 150 200 250 300 350
Bup 6 day detoxBup Maintenance
4 deaths
0 deaths
Kakko J, Lancet 2003
Buprenorphine: Reduces Other Drug Use
Fudala, NEJM 2003
Opioid Dependence Treatment in Primary Care
Stein, JGIM 2005
At 24 weeks, 59% remained in treatment
Buprenorphine is not diverted
Cicero, NEJM 2005
OXYCODONE
METHADONE
BUPRENORPHINE
McLeod, SAMHSA 2005
Useful Websites
• Buprenorphine Information: www.buprenorphine.samhsa.gov
• NIAAA Web site: http://www.niaaa.nih.gov/• Medication information: http://www.suboxone.com• Physician Clinical Support System (PCSS)-
National Mentor for Physicians Treating Opiate Dependence. http://www.PCSSmentor.org