2
The waiver moratorium was lifted, and an interim waiver review process was established by
CDC. CDC notified manufacturers of moderate complexity test systems that it would consider
any moderate complexity test system that met the statutory waiver criteria and for which
the
manufacturer or producer applied for waiver in accordance with the draft guidelines
containing waiver criteria a process for reviewing waiver requests.
A proposed rule was published
clarifying
the
statutory
criteria for determining which tests
could be waived and to provide for automatic
waiver of FDA-
approved home use tests. The
rule also proposed that all previously waived tests be reevaluated using the clarifications to the
waiver criteria in the regulation.
Congress enacted the Food and Drug Administration Modernization Act of
1997 (FDAMA)
revising the CLIA law to make it clear that tests approved by the FDA for home
use
automatically qualify for CLIA waiver. In addition, Congress added "by the
user"
to the
waiver provision related to
simplicity
and accuracy of methodologies, i.e., "employ
methodologies that are so simple and accurate as to render the likelihood of erroneous results
by the user negligible." (emphasis added). The waiver section of the CLIA statute now
reads: Waived tests "are laboratory examinations and procedures that have been approved by
the Food and Drug Administration for home use or that,
as
determined by the Secretary, are
simple laboratory examinations and procedures that have an insignificant risk of an erroneous
result, including those
that-
(A) employ methodologies that are so simple and accurate as to render the
likelihood of erroneous results by the user
negligible,
or
(B) the Secretary has determined pose no unreasonable risk of harm to the patient if
performed
incorrectly."
According to the legislative history from House Report 105-310 to associated bill H.R. 1411
under section 21, "Modernization of regulation," the intent of the "by the user"
clarifying
language was to focus the waiver criteria on
verifying
test
performance by the user and
eliminating
the potential for operator error in performing the test. The history also stated that,
without this clarification, interpretations
of "erroneous
result" and "accurate" could include the
inherent
clinical
sensitivity and specificity of a test system, which would be inappropriate since
those parameters were under the purview of the FDA. The history concluded by stating that
this change was intended only to
specify
the focus of
the
criterion and
"
not meant in any way to
change the acceptable level of user
error."
A citizen petition was filed by the Partners for Public Health and Government requesting
CDC and the Health Care Financing Administration (HCFA) – now the Centers for
Medicare and Medicaid Services (CMS) - to enter into negotiated rulemaking to develop
waiver regulations.
An interagency agreement was signed by CDC, HCFA, and FDA, transferring
the
responsibility
for categorizing the complexity of commercially marketed laboratory tests and evaluating requests
for waiver from CDC to FDA.
A Federal Register notice announced the transfer of responsibility for the categorization
(including waiver determinations) of commercially marketed in vitro diagnostic (IVD) tests under
CLIA’88 from CDC to the FDA. The transfer of test categorization was completed January 2000
and the transfer of the
responsibility
for waiver determinations was completed February 2000.