cder drug safety oversight board douglas c. throckmorton, m.d. deputy director, cder food and drug...
TRANSCRIPT
CDER Drug Safety Oversight Board
Douglas C. Throckmorton, M.D.Deputy Director, CDERFood and Drug AdministrationNovember 5, 2005
Outline
Drug Safety Oversight Board (DSOB, Board) membership and charge
Summary of Board meetings Topics discussed Challenges for the Board Ongoing assessments of Board
function and activity
DSOB Membership
Chair – Deputy Director, CDER Executive Director –Susan Cummins,
MD, MPH Membership - representatives from
CDER offices, CBER, CDRH, NIH, VAH Consumer or patient representatives
and advisory committee members as consultants
DSOB Charge Will provide independent oversight
and advice to the CDER Center Director on management of: Important drug safety issues and policies Dissemination of certain safety
information through FDA’s website to healthcare professionals and patients
DSOB Activities (from MaPP) Identify, track and oversee management
of important drug safety issues Adjudicated organizational disputes
concerning management of drug safety issues
Select drugs to be placed on Drug Watch and update their status as appropriate
Establish policies regarding management of drug safety issues in CDER
DSOB Activities (from MaPP) (cont) Oversee the development of patient and
professional information sheets in CDER Track important emerging safety issues and
ensure they are resolved in a timely manner Ensure CDER decisions about a drug’s
safety benefit from the input and perspective or experts within and outside FDA who have not conducted the primary review or served as a deciding official in the ongoing pre-market evaluation or post-market surveillance activities with respect to the drug
DSOB Staff
Mary Mease, RPh, MPH Toni Marie Nearing-Crowley Lee Zwanziger, PhD
Work with the CDER Divisions to write the Public Health Advisories, and write the Patient and Professionals Information Sheets
Themes from the Four DSOB Meetings to Date
Didactic sessions on drug safety Oversight of CDER safety issues
Pre-decisional Make recommendations for ongoing CDER activities
Post-decisional Review of decisions about safety communications
Policy development
Discussion today limited by commercial confidential nature of the data used in many of the discussions
Didactic Sessions Familiarize members from outside
CDER with extensive safety activities ongoing in CDER
Sessions on: Detection, assessment and management
of safety issues in Office of Drug Safety (ODS) and Office of New Drugs (OND)
Newly-issued Guidances related to safety: Guidance on risk management programs
(ODS)
Oversight of CDER Safety Issues: Predecisional Intent:
Provide full picture of the data as we know it Extensive background data in advance Presentations by knowledgeable CDER review
staff Solicit specific suggestions for actions
Reality: Many safety issues are time-sensitive May limit DSOB role here to complex,
evolving issues Board has asked for fuller discussion of ongoing
work in the Center about safety
Predecisional Oversight of CDER Safety Issues: Transdermal Patches Containing Fentanyl Issue: ODS report of patient deaths and
possible fentanyl overdoses when using patch
CDER Actions: Review of safety data Initial evaluation of manufacturing and
pharmacokinetic data for sources of variability Patient/ HCP sheets highlighting need to follow
label carefully Issue for Board:
Additional Risk Management
FDA ALERT [7/2005]: Narcotic Overdose and Death
FDA is looking into reports of death and other
serious side effects from overdoses of the narcotic fentanyl in patients using the fentanyl
transdermal skin patches for pain control.
Directions for using the fentanyl skin patch must be followed exactly to prevent death or
other severe side effects that can happen from using too much (overdosing) fentanyl. These
directions are provided in the patient package insert.
Predecisional Oversight of CDER Safety Issues: Transdermal Patches Containing Fentanyl (cont) Board Recommendation:
Need to more evaluate fully the sources of variability of drug delivery for these complex drug delivery systems, especially for drugs with narrow therapeutic windows
Risk Management strategies should be developed with this evaluation in mind, including the use of Medication Guides
Action Item for CDER: After evaluation bring issue back to Board
for fu discussion and questions
Oversight of CDER safety issues: Postdecisional Many of the safety issues time-sensitive
Post-decisional oversight important part of DSOB role
DSOB meetings include: Review of all postings on proposed Drug
Watch web page Postings sent to all members via MedWatch
Each action summarized at meeting Members asked about action taken, whether
other steps need to be considered Feedback has been variable, but frank
Postdecisional Oversight of CDER Safety Issues: Withdrawal of Palladone
Issue: decision to withdraw palladone from the market for ‘dose-dumping’ in EtOH
CDER Actions: Reviewed in vitro and in vivo data on dose-dumping Discussed alternative therapies, concluded
withdrawal of product best Started evaluation of other products for similar effect
Board Recommendation: Agreed with appropriateness of withdrawal Recommended standard chemistry review of similar
products prior to approval Action Item for CDER:
FU on chemistry review process
Policy Discussions
DSOB and the new forms of safety communication (e.g., Patient Information Sheets) are new ways for CDER to address safety: Need to define its role in the larger
effort to address safety in CDER Avoid duplication of efforts
Policy Discussions: Issues ‘Threshold’ for communication:
When should the DSOB recommend communicating publicly about an emerging safety issue?
Board has identified set of circumstances that could influence the need to say something public, including:
Gross credibility of data Plausibility (model) Other relevant data from related drugs Severity/reversability of adverse effect Public health impact of adverse effect
Policy Discussions: Issue & Challenge for the Board
‘Oversight’ function of the Board What is effective oversight? How to conduct effective oversight?
New group within CDER with unique mix of expertise Need to conduct oversight over many diverse
groups in CDER at work on safety Need to assure timely implementation of
recommendation once accepted by Dr. Galson First step: need to understand breadth of
safety issues in CDER and how they are handled
Policy Discussions: Issue & Challenge (cont)
‘Oversight’ Function Action Items: Board review of ways CDER identifies and handles
safety issues, including canvassing by Board staff to understand full scope of safety activities
Complimentary to ongoing safety tracking in CDER Board discussion to translate this review into
clearer vision of how to conduct safety oversight Implementation of a Quality Assurance program
to develop and track metrics of success for the Board
Two meetings have been held Look for additional comments at upcoming Part 15
Hearing
Summary DSOB has broad set of challenges it is
tasked with managing: All important Providing effective and timely oversight a
critical task identified by the Board Board members are taking their
responsibility very seriously, and have provided feedback to CDER that has: Added new, fresh voice on safety in CDER Changed the tone of the safety discussions
in CDER Changed the approaches taken by CDER on
specific safety issues
[email protected] 301-594-5400
Question for Science Board
Based on your understanding of the safety system in CDER, how would you prioritize the 7 goals identified for the DSOB?
Board Activities (from MaPP) Identify, track and oversee management of important
drug safety issues Adjudicated organizational disputes concerning
management of drug safety issues Select drugs to be placed on Drug Watch and update
their status as appropriate Establish policies regarding management of drug safety
issues in CDER Oversee the development of patient and professional
information sheets in CDER Track important emerging safety issues and ensure they
are resolved in a timely manner Ensure CDER decisions about a drug’s safety benefit
from the input and perspective or experts within and outside FDA who have not conducted the primary review or served as a deciding official in the ongoing pre-market evaluation or post-market surveillance activities with respect to the drug