This worksheet is designed to
assist researchers with their literature searches, while facilitating
compliance with regulatory agencies. The search should identify
any alternatives to potentially painful or distressful procedures,
while also assuring that the protocol does not unnecessarily duplicate
previous research.
The US Animal
Welfare Act (AWA) regulations (specifically the 1985
Amendment), require the principal investigators to consider
alternatives to procedures that may cause more than momentary or slight
pain or distress to the animals, and provide a written narrative of the
methods used and sources consulted to determine the availability of
alternatives, including refinements, reductions, and replacements.
The search for alternatives refers to the three Rs described
in the book, The Principles of Humane
Experimental Technique (1959) by Russell and Burch. The 3Rs
are reduction in the number of
animals used, refinement of
techniques and procedures to reduce pain or distress, and replacement of animals with
non-animal techniques or use of less-sentient species.
Refinement:
The use of analgesics and analgesia, the use of remote telemetry to
increase the quality and quantity of data gathered, and humane
endpoints for the animals are examples of refinements.
Reduction:
The use of shared control groups, preliminary screening in non-animal
systems, innovative statistical packages or a consultation with a
statistician are examples of reduction alternatives.
Replacement:
Alternatives such as in vitro, cell culture, tissue culture, models,
simulations, etc.are examples of replacement. This is also where
you might look for any alternate animal models lower on the
phylogenetic scale (fish or invertebrates, for example), that would
still give you the data you need.
Before you begin your search:
Consider other
possible animal or non-animal models (e.g., tissue culture, cell
culture, fish, rats, etc.) more
info
Note any drugs
or compounds used in procedures. (e.g., anesthetics, analgesics, test
compounds, etc.) more info
Note methods
and procedures using animals, paying particular attention to those
procedures that may cause pain or distress to the animal. more info
List any
potential alternatives (all 3 Rs) of which you are aware. (e.g.,
alternate models, modified techniques, housing modifications, modified
restraint, in vitro methods, computer simulations, etc.) more info
Develop a
conceptual search strategy using the keywords and concepts you noted
above. A search strategy is necessarily flexible, dependent both on the
topic and on the database selected. If too many records are
retrieved, additional relevant terms may make the results fewer and
more useful; if too little is retrieved, fewer terms and a more
conceptual approach may identify the relevant material. Use these
terms and concepts as needed when searching in the following databases.
more info
Database
selection: Choose those that are appropriate for the area of study,
keeping in mind type of protocol: Is the proposed study
a research, teaching, or testing protocol?more info
Other resources, databases, and websites may be
useful. The Animal Welfare Act regulations and policies allow for
researchers to describe other methods and sources used to determine the
availability of alternatives, though this should be secondary to the
literature search.
Note names
of databases searched and years
covered by the search. (example: PubMed, 1966-2005) more info
Note the date(s)
on which you searched.
Describe what
alternatives-related information you found, how you are integrating
those alternative methods, procedures, or models into your protocol, as
well as why you are not using others. This is sometimes referred
to as the "narrative" or "search results" section. more info
Supporting information on Searching and Databases available.
For additional information or
assistance: AltWeb
Alternatives news, information, and resources
AWIC
Sample searches, methods and guidelines, training and education,
databases, organizations, and other resources that can assist in
understanding alternatives, finding alternatives and completing the alternatives search. UC
Center for Animal Alternatives
Assistance with the search for alternatives