Essential Elements of a Data and Safety Monitoring
Plan for Clinical Trials
Funded by the National Cancer Institute
Summary
This document outlines the essential elements of an adequate plan
for data and safety monitoring (DSM) of clinical trials. It is intended to
assist investigators and institutions in the formulation of DSM plans for all
phases of cancer clinical trials, in accordance with NIH requirements. We
suggest that institutions sponsoring a significant number of clinical trials
formulate institutional DSM plans that can be broadly applied to the individual
trials in their portfolio. Investigators from institutions or organizations
without institutional DSM policies may also find this document useful as a
guide in fashioning suitable DSM plans for their individual trials.
Background
NIH policy (http://grants.nih.gov/grants/guide/notice-files/not98-084.html
with additional description at
http://grants.nih.gov/grants/guide/notice-files/NOT-OD-00-038.html)
requires that grantees have in place procedures for DSM of clinical trials.
This is to insure the safety of participants, the validity of data, and the
appropriate termination of studies for which significant benefits or risks have
been uncovered or when it appears that the trial cannot be concluded
successfully. The NIH DSM policy covers clinical trials of all phases for which
grant support is sought. DSM plans must be in place before grants supporting
such studies can be funded. Applicants must submit a general description of the
DSM plan for peer review as part of the grant application and, subsequently, a
more detailed plan for review and approval by NCI staff prior to issuing a
Notice of Grant Award.
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Operational Definition of a Clinical Trial
For purposes of this document, we define a clinical trial
operationally as a prospective study involving human subjects designed to
answer specific questions about the effects or impact of particular biomedical
or behavioral interventions; these may include drugs, treatments, devices, or
behavioral or nutritional strategies. Participants in these trials may be
patients with cancer or people without a diagnosis of cancer but at risk for
it.
- In the area of molecular or imaging diagnostics, we
consider a study to be a clinical trial if it uses the information from the
diagnostic test in a manner that somehow affects medical decision-making for
the study subject. In this way the information from the diagnostic may have an
impact on some aspect of outcome, and assessment of this impact may be a key
goal of the trial. By contrast, studies that do not use information from the
diagnostic test in any manner that can affect the outcome of study subjects but
whose objective is only the gathering of data on the characteristics of a new
diagnostic approach are not clinical trials and are not covered by this DSM
policy, unless performing the diagnostic test itself imposes some risk on study
subjects.
- Behavioral clinical trials test interventions aimed at
eliminating or reducing human activities associated with enhanced cancer risk,
such as tobacco use, poor nutrition, and sun exposure, or eliminating or
reducing morbidity associated with cancer screening, diagnosis, and treatment.
Requirements for a DSMB
For some time now NCI policy has required that Data Safety
Monitoring Boards (DSMB) be in place for all Phase III randomized
clinical trials (http://deainfo.nci.nih.gov/grantspolicies/datasafety.htm).
The present document modifies this policy, in that there is no longer a blanket
requirement for DSMB in the cases of low-risk behavioral and nutrition trials.
As discussed further below, all such trials should include a DSM plan, but this
may or may not include a DSMB, depending chiefly on the anticipated level of
risk to participants.
Nor does NIH or NCI policy require that formal DSMB's be
constituted for clinical trials other than phase III, though investigators or
institutions may wish to do so for certain non-Phase III trials involving
particular risk, complexity, likely decisions about early stopping, or the need
to obviate conflict of interest.
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The Role of Institutional DSM Plans
Cancer clinical trials funded by the NCI are conducted in
thousands of institutions nationwide. Many of these institutions - notably the
comprehensive and clinical cancer centers - have particularly intensive
clinical research portfolios that include dozens or hundreds of trials. It
makes sense for such institutions to have in place institutional plans
for an effective DSM process. An effectively formulated and executed
institutional plan should improve both participant protection and trials
conduct and should greatly reduce the need to set up new policies ad hoc
on a trial-by-trial basis. For most investigator-initiated grant applications
supporting clinical trials in an institution with an already approved
institutional plan, the investigator should only have to supply the approved
institutional plan in the Human Subjects section of the grant application and
describe how it applies to the specific trials.
Tailoring Institutional DSM Plans to Specific Studies
The NCI clinical trials portfolio encompasses a vast array of
investigation; examples range across early feasibility studies in treatment,
prevention, or diagnosis; nutritional interventions to modulate risk of cancer;
gene transfer; and behavioral research relating to cessation of tobacco use.
Accordingly, the essential elements for DSM outlined below are described in
general terms, and we do not stipulate details of how this process should be
carried out. We have used general language to describe the essential content of
such plans, leaving to individual institutions and investigators wide
discretion in how to carry out these activities in an effective manner.
Clearly, a sensible DSM plan for a particular clinical trial must
be based on the medical or health-related context of the particular study and,
in particular, the degree of risk to which participants in the trial are
exposed. In applying an institutional plan to a particular trial, therefore,
the principal investigator will consider whether the institutional plan is
sufficiently specific or whether it needs some further tailoring to the
conditions of the particular trial. An institution might choose to have one
general plan, which investigators tailor to individual trials. Alternatively,
the institution might choose to have a plan that is essentially formulated in
modules, each of which describes in adequate detail how monitoring will be
accomplished for a major class of trials the institution supports
(e.g., early phase studies in treatment, behavioral studies, bone-marrow
transplantation, chemoprevention studies in healthy populations, etc.).
Investigators can then apply these plans to particular protocols with little or
no change in the description. For purposes of NCI review, as noted above,
investigators may append the institutional plan to the Human Subjects section
of their own grant applications and use these institutional documents in their
interactions with NCI staff reviewing their plan. Under most circumstances NCI
anticipates that a properly prepared institutional plan should suffice both for
peer review and for NCI staff review.
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Review of DSM Plans by NCI Staff
NCI staff review of institutional or individual DSM plans prior to
grant award will focus on the adequacy with which the plan covers the essential
elements outlined below. It is not necessary that submitted plans (whether they
are institutional or individual plans) cover all possible aspects of each
element down to the last detail. Rather, the plan should describe processes for
dealing with these elements such that a reasonable reviewer would conclude that
the institution or investigator has a serious, robust process in place for
assuring the safety of research participants and the oversight of data
integrity.
Essential Elements
- Monitoring the Progress of Trials and the Safety of
Participants. Description of these monitoring processes should include a
number of elements. Who actually monitors the trials? How often are the data
examined in the course of trial conduct? What do the monitors look for? What
procedures are in place to insure adequate feedback of information to
researchers and medical decision-makers, so that trials involving excessive
risk in relation to anticipated benefits are terminated appropriately? What is
the oversight or supervisory role of institutional committees, if appropriate?
What procedures does the institution have for coordinating multi-center trials,
if applicable?
- In relation to who actually has responsibility for
monitoring a trial, DSM plans should explain how the institution averts or
manages any conflict of interest implicit in having a Principal Investigator
(or a direct report of the PI) as the only monitor of trials that pose
significant risk to study subjects.
- Plans for assuring compliance with requirements regarding
the reporting of adverse events (AE). The plan should describe the
processes and oversight that the institution has in place for assuring that AE
reporting requirements are actually met. For multi-center trials coordinated by
the institution, the plan should outline procedures by which the institution
establishes a central reporting entity that collects and reports AE to all
necessary destinations, including co-investigators at participating
institutions.
- The requirements for proper reporting of AE on clinical
trials are complex (summarized in Appendix A). Possible destinations for AE
reports include the institutional IRB, the sponsor (if an IND is involved), the
FDA (for AE from commercially available agents), and the NIH Office of
Biotechnology Activities (OBA)(if gene transfer is involved). Note that current
federal regulations almost always require reporting of AE in all categories of
clinical trial to the institutional IRB, in addition to what is specified in
Appendix A.
Note also that there is no requirement that
individual AE be reported in real time to the NCI, unless NCI is also the IND
sponsor of the study (see Appendix A). Where appropriate, investigators should
summarize toxicities or adverse consequences of interventions as part of the
progress reports in their non-competitive (Type 5) or competitive (Type 2)
renewal applications.
- Plans for assuring that any action resulting in a temporary
or permanent suspension of an NCI-funded clinical trial is reported to the NCI
grant program director responsible for the grant. These actions include,
for example, any FDA actions that affect NCI-funded trials (http://grants.nih.gov/grants/guide/notice-files/NOT-OD-00-053.html).
It also includes actions by an IRB or by a commercial sponsor, or by the
investigator him/herself, if an NCI-funded trial is involved.
- Plans for Assuring Data Accuracy and Protocol
Compliance. Institutions should describe what quality-control procedures
are in place for assuring data accuracy and completeness in studies funded by
NCI.
- If an IND is in place, quality-control procedures are
generally stipulated by the IND sponsor and may be simply referenced or
summarized in the DSM plan. For studies not done under an IND, the institution
should describe whatever procedures are in place to assure data integrity and
protocol adherence. Appropriate procedures may range, for example, from regular
data verification and protocol compliance checks performed by a data manager
and a principal investigator to a formal external data-audit process by an
agent external to the institution.
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Special Circumstances
A. Behavioral and Nutritional Studies
For behavioral and nutritional Phase I-III trials, the NCI
requires that a DSM plan be in place appropriate to the anticipated level of
risk involved in the particular study. A DSMB can be constituted at the
investigator's discretion and seems particularly appropriate when investigators
anticipate the possibility of early stopping based on emerging differences in
either risk or benefit.
B. Training Grants
Certain types of NCI career and training awards may support
clinical trials, directly or indirectly. NCI's DSM policy covers those career
and training awards in which the trainee has direct responsibility for conduct
of the clinical trial or in which award funds directly support the trial.
Responsibility for compliance with NCI's DSM policies rests with the grant
recipient; this may be either the trainee or the training program director,
depending on the award (individual versus institutional). Trainees in a
mentored career program should consult with their mentors about adapting or
designing suitable DSM plans for their clinical trials. In most cases the
trainees will be in a mentored stage of their career and will lack the
experience needed to provide appropriate oversight of the trial. The DSM plan
must therefore clearly identify the senior individual responsible for
monitoring the trial and the function of the trainee in this process.
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- For institutional career development programs (e.g., K12, R25T)
in which clinical trials are an integral part, applicants should provide with
their application documentation that either (a) the sponsoring institution has
an institutional DSM plan in place that covers all trials supported by the
grant, or (b) the trials are covered by individualized DSM plans, included in
the application submission, that apply to the trials directly.
- For individual career development awards in which the trainee
has direct responsibility for trial conduct or in which award funds directly
support the trial, the DSM plan covering the trial may be either institutional
or individual at the discretion of the grant recipient.
- If the clinical trial is not to be started immediately upon
award but will follow after a considerable lapse of time (years), submission of
a DSM plan to NCI for approval may be delayed until the nature of the trial is
clear and its initiation is in the near future. This will insure that the DSM
plan, whether institutional or individual, suits the needs of the trial.
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Appendix A: Summary of Reporting Requirements for Adverse Events
on NCI Trials Supported by Grant or Contract Funding
A. Trials for which NCI is also the IND Sponsor (for details, see
the NCI Investigator Handbook, available on-line at
http://ctep.info.nih.gov/handbook/handbook/HandBookIEPF.htm)
TABLE A: Expedited Reporting for Phase 1 Studies
UNEXPECTED EVENT
GRADES 2 - 3
Attribution of Possible,
Probable or Definite |
UNEXPECTED EVENT
GRADES 4 and 5
Regardless of Attribution |
EXPECTED EVENT
GRADES 1 - 3 |
EXPECTED EVENT
GRADES 4 and 5
Regardless
of Attribution |
Grade 2 - Expedited reportwithin 10
working days
Grade 3 - Report by phone to IDB within 24 hrs.
Expedited report to follow within 10working days.
(Grade 1 -
Adverse Event Expedited Reporting NOTrequired.) |
Report by phone to IDB within 24 hrs. Expedited
report to follow within 10 working days.
This includes all deaths
within 30 days of the last dose of treatment with aninvestigational
agentregardless of attribution or any death attributed to the agent (possible,
probable, or definite) regardless of the timeframe. |
Adverse Event Expedited
Reporting NOT
required. |
Report by phone to IDB within 24 hrs. Expedited
report to follow within 10 working days.
This includes all deaths
within 30 days of the last dose of treatment with aninvestigational
agentregardless of attribution or any death attributed to the agent (possible,
probable, or definite) regardless of the timeframe. |
TABLE B: Expedited Reporting for Phase 2 and 3
Studies
UNEXPECTED EVENT
GRADES 2 - 3
Attribution of Possible,
Probable or Definite |
UNEXPECTED EVENT
GRADES 4 and 5
Regardless of Attribution |
EXPECTED EVENT
GRADES 1 - 3 |
EXPECTED EVENT
GRADES 4 and 5
Regardless
of Attribution |
Expedited report within 10 working days
(Grade 1 - Adverse EventExpedited Reporting NOTrequired.) |
Report by phone to IDB within 24 hrs. Expedited
report to follow within 10 working days.
This includes all deaths
within 30 days of the last dose of treatment with aninvestigational
agentregardless of attribution or any death attributed to the agent (possible,
probable, or definite) regardless of the timeframe. |
Adverse Event Expedited
Reporting NOT
required. |
Expedited report, including Grade 5 Aplasia in
leukemia patients,within 10 working days.
This includes all deaths
within 30 days of the last dose of treatment with aninvestigational
agentregardless of attribution or any death attributed to the agent (possible,
probable, or definite) regardless of the timeframe.
Grade 4
Myelosuppression or other Grade 4 events that do not require expedited
reporting will be specified in the protocol. |
* For Hospitalization Only - Any medical event equivalent to
CTC Grade 3, 4, 5 which precipitated hospitalization (or prolongation of
existing hospitalization) must be reported regardless of requirements for Phase
of study, expected or unexpected and attribution.
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Expedited reporting may not be appropriate for specific expected
adverse events for certain later Phase 2 and Phase 3 protocols. In those
situations the adverse events that will not have expedited reporting must be
specified in the text of the approved protocol. An expected Grade 3 event that
is definitely related to the investigational agent is only to be reported if
the patient is hospitalized using the generic reporting criteria, for instance.
In a trial of an investigational agent where Grade 3 diarrhea requiring
hospitalization is expected, only diarrhea requiring ICU care (Grade 4) might
be designated for expedited reporting.
B. Trials of an investigational agent for which NCI is not
the IND holder
The controlling regulations are those of the Food and Drug
Administration (21 CFR Part 312.32 Expedited Safety Reporting Requirements for
Human Drug and Biological Products) and are available at
http://www.fda.gov/cder/aers/fr07oc97.htm.
They describe the responsibilities of the investigator and the IND holder.
Additional sponsor or institutional requirements may be appropriate for
specific agents and included in the pertinent protocol sections.
C. Trials involving commercially available agents only (no IND's
involved)
Serious adverse events that occur with commercially available
agents/devices are reported through Food and Drug Administration Medwatch (http://www.fda.gov/medwatch/index.html).
D. Trials involving recombinant DNA molecules (gene
transfer)
In addition to the reporting requirements for investigational
agents (see A or B above, as appropriate), investigators should adhere to NIH
Guidelines for Research Involving Recombinant DNA Molecules (Gene Transfer) (http://grants.nih.gov/grants/policy/recombinentdnaguidelines.htm
)
E. Food and Drug Administration reporting requirements of serious
adverse events for post-marketing trials of vaccines (no cancer vaccines yet in
this category)
Serious adverse events must be reported according to applicable
FDA regulations (http://www.fda.gov/cber/vaers/vaers.htm ).
F. Trials involving behavioral or nutritional interventions that
do not use an investigational agent
Since there are no standard grading scales for adverse events,
defining suitable grades for adverse events is the responsibility of individual
investigators for each protocol. Adverse events of a psychological nature can
occur with behavioral trials and should be specified for the particular
intervention in question.
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