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OUR APPROACH
Xtal's approach is a comprehensive 360 degree look at all the various
factors
that play into the effective assessment of a candidate's potential
in-vivo
efficacy and intended/unintended action(s).
Classic
approaches have focused one or two dimensionally on attempting to ascertain the
candidate's efficacy. To push a candidate through even the first one or two phases
of trials is a tremendous undertaking that can literally be the factor for wholesale
failure of not just the candidate but the entire company and its other candidate's.
At the very least, it can severely compromise business strategy and lead
to loss of equity. Risk is endemic at every turn. All available
methodologies and resources must be pooled and applied in logical steps and at
key moments in the cycle to realize the most efficient yet thorough analysis of
the candidate. Only through this approach, we believe, can you obtain the best
critical intelligence to continue development or quickly change strategy and resource
allocation. This risk mitigation is one of the key and overarching benefits
behind our comprehensive 360 degree approach.
We don't believe in giving you one or two dimensional analysis.
We integrate into your business goals and create a custom analytic pathway
that is dynamic and thorough without being redundant or wasteful. 
At each step you have senior scientist who evaluate the data real time and
suggest clear and pointed tests that optimize your process and assure the best
possible outcome. _________________________________________________________________

SAMPLE SCENARIOS Example 1:
In a lot of cases drugs that pass Phase I, too often fail to show efficacy in
later stages
of trials, or prove too narrow in scope. Xtal has the ability to
work with various cell lines and disease models to check for cross reactivity
and improve the broad target list. If the narrow mode of binding is preferable
we can help in creating a library of very potent analogues that will help broaden
the effectiveness.
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Example II:
The suggestion of a
simple ITC characterization of the protein and ligand to
confirm an initial cell based assay result prior to moving onto co-crystalization. This simple
step can assure that the protein target discovered in the initial assay is indeed correct before moving onto to the more intensive co-crystalization
step that gives our clients the confidence they need to move on and the risk mitigation that assures efficient development. _________________________________________________________________
Example III: Hardware and software advances
in mass spectrometry now allow us to analyze phosphorylation states of proteins
of interest quickly and more efficiently than ever before. We can now use this
device to judge the addition of a phosphate group to the overall mass of
the protein thereby allowing us to easily identify activation of certain proteins
in relation to results produced via cell based assays. This same technique
can also be applied to other questions about molecules of interest. _________________________________________________________________
Example IV:
Structure guided drug
discovery is via X-ray crystallography is a common and often
used technology
for predicting ligand to receptor binding affinity. But we have also provided
structural information for the receptors themselves, deglycosilation sites,
and multi-protein complexes in an effort to understand the biology and the
biological implications of a particular thought process the client had.
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