California Physicians Weigh In on Glyphosate
by
Tim Barker, Managing Editor for the Genetic Literacy Project, BIO
Doctors
and medical professionals in California have stepped into the ongoing
courtroom fight between Bayer/Monsanto and a former groundskeeper who blames
the popular Roundup herbicide for his terminal cancer. Last month, three
state medical associations filed an amicus brief supporting Bayer's appeal of
a jury's verdict in a civil suit that found the weedkiller to have been a
factor in causing Dewayne Johnson's non-Hodgkin's lymphoma. Initially, the
San Francisco Superior Court jury awarded Johnson $289 million, but that
figure was later reduced by a judge to $78 million.
The
verdict is under appeal by Bayer, which acquired Monsanto in mid 2018 and is
facing an avalanche of similar lawsuits across the country. Now it finds
itself with several new allies, following the move by the California Medical
Association, California Dental Association and California Hospital
Association.
Why
did the physicians take this extraordinary step?
It's
not all that unusual for interested parties to file amicus briefs in high
profile cases such as this. But what is unusual is seeing medical doctors
take a step that could be seen as supportive of the safety of glyphosate. Of
course, there's also the fact that doctors, dentists and hospitals are often
the target of emotionally-tinged lawsuits alleging negligence. In their
brief, the associations made clear that they are not taking a side on the
glyphosate/cancer issue. Instead, they expressed concern about how cases such
as this - where physician testimony is critical - are handled:
Amici's
point is that the answer to complex scientific questions such as that which
the jury was required to resolve in this case should be based on accepted
scientific evidence and rigorous scientific reasoning, not speculation and
emotion.
In
their brief, the associations challenged the basis for the verdict, arguing
that jurors may have been influenced by trial lawyers, employing strategies
that 'demonize' defendants in such cases: Plaintiffs do so not only to
achieve large damage awards, but also to persuade juries to decide issues of
negligence and causation based on emotion, rather than reason.
They
further suggested that the appeals court may come to a different conclusion,
after reviewing the scientific evidence in the case: Overall, the point
is that this case is suspicious because of two problems in tort litigation
that health care providers have seen in professional liability litigation.
First, in those cases where causation turns on complex questions of science,
the decision-making sometimes is based on speculation. Second, the
decision-making sometimes is based on emotion.
The
groups also took issue with what they say was a failure by the plaintiffs to
provide scientific evidence supporting the claim that Johnson's cancer was
caused by exposure to the weedkiller. They note that Johnson's own treating
physicians - including NHL experts at Stanford University - agreed that the
cause of the cancer was unknown. But Chadi Nabhan, the doctor testifying in
support the cancer claim, pointed to the fact that Johnson is considerably
younger than the typical patient with non-Hodgkin's lymphoma. There's a
problem with that line of thought, the associations said: The obvious
implication is that all unknown causes are age related. The problem with that
testimony is that there is no evidence to support that assumption. Rather,
that was a speculative leap that Dr. Nabhan made. What does mainstream
research conclude about the dangers of glyphosate? Furthering their
criticism of Dr. Nabhan, the associations note that the doctor acknowledged
during the trial that 80-90 percent of such cancers are caused by unknown
factors, and that he is "unable to identify a cause of NHL in the
majority of his patients."
Not
surprisingly, the trial also included references to the controversial 2015
action by the International Agency for Research on Cancer, which classified
Roundup's active ingredient glyphosate as "probably carcinogenic."
The agency's monograph - a "hazard evaluation," dealing with
long-term exposure - has been heavily disputed by industry, health
organizations and regulatory bodies. Much of the criticism has focused on the
fact that IARC did no original research and considered only a few dozen
studies, eliminating all studies with financial links to industry or in which
a researcher had professional associations with industry. It also did not
consider hundreds of independent studies.
It
remains to be seen whether these organizations' arguments will have any
bearing on the appeals process. Bayer has asked the court to toss out the
verdict. Failing that, the company is asking for a new trial, arguing that
jurors weren't allowed to hear evidence that the U.S. Environmental
Protection Agency and foreign regulators had deemed glyphosate not likely
carcinogenic to humans.
According
to Drew Kershen, professor emeritus at University of Oklahoma College of Law,
and a GLP board member: As for impact, it is completely impossible to
predict. Yes, amici briefs do have impact and significant impact in some
particular cases. Court are routinely persuaded by the arguments in amici
briefs. But, at the same time, most amici briefs have zero impact on the
appellate court in which amici filed the brief. Regardless of the outcome,
there remains intense debate online and in the media about whether the
herbicide poses a health threat to agricultural workers or the general public
as a result of residues in food.
At
least 15 regulatory and research agencies have conducted extensive long-term
studies, reviews or assessments to assess whether glyphosate, when used
as directed, increases the risk of certain cancers. Not one organization,
including three at the World Health Organization, including WHO itself,
concurred with IARC's highly controversial conclusion that glyphosate could
cause harm to workers.
In
the time since the IARC report was released, a groundbreaking, longitudinal
epidemiological study-Glyphosate Use and Cancer Incidence in the Agricultural
Health Study (2017)-was published in the Journal of the National Cancer
Institute based on data collected by the Agricultural Health Study since
1993. The AHS evaluated 54,251 pesticide applicators, including 44,932 who
had handled glyphosate, concluding: In this large, prospective cohort
study, no association was apparent between glyphosate and any solid tumors or
lymphoid malignancies overall, including NHL [non-Hodgkins lymphoma] and its
subtypes. There was some evidence of increased risk of AML among the highest
exposed group that requires confirmation.
Do
trace residues of glyphosate in food pose cancer dangers?
All
of the agencies, including IARC, are unanimous in one finding: There is no
evidence that glyphosate poses any harm to consumers worried about trace
residues in their food. Despite many blogs by anti-biotechnology
advocacy groups touting 'studies' (usually not very scientific, such as here,
most recently) finding glyphosate in beer or cereal at the parts per billion
or parts per trillion level, or finding traces of glyphosate in blood or
urine, there is no scientific study that suggests those minuscule trace
residues pose any threat to humans.
In
January 2019, in the wake of the first two trial verdicts, Health Canada
reviewed the evidence for a third time and issued this extraordinarily strong
summary statement: After a thorough scientific review, we have
concluded that the concerns raised by the objectors could not be
scientifically supported when considering the entire body of relevant data.
The objections raised did not create doubt or concern regarding the
scientific basis for the 2017 re-evaluation decision for glyphosate.
Therefore, the Department's final decision will stand....No pesticide
regulatory authority in the world currently considers glyphosate to be a
cancer risk to humans at the levels at which humans are currently exposed.
Editor's Note (Dr.
Bryan Gensch, Texas Seed Trade Assn.): We are reprinting this article for several
reasons. It reports on events of interest to agricultural professionals
and is topical and current. Other than hemp questions, the most common
question TSTA staff gets asked over the last year or so, concerns
glyphosate. We imagine that many of you field questions from
professional associates, friends, and acquaintances about this too.
|
Highlights, pest status, IPM solutions and announcements for Hale & Swisher Counties
Wednesday, October 30, 2019
Summary of the Glyphosate lawsuit situation
The following was
released by Dr. Calvin Trostle, District 2 non-cotton agronomist. It is a
summary of the Glyphosate lawsuit situation from Dr. Bryan Gensch, Texas Seed
Trade Association.
Friday, October 25, 2019
IPM Annual Survey
Greetings All,
Hope this fall catches you warm and healthy. Below is
the link to this year’s Hale & Swisher IPM Unit’s annual survey. It
is one of those things we must ask of our customer base that helps justify our
Texas A&M AgriLife Extension work. So, please take the opportunity to
let us know how we did. If we helped you this year, let our bosses
know. If there is something we should improve to serve you better, let us
know that one too.
The survey should take less than 10 minutes, but should be
completed with a computer. Some of the information I would like from you,
especially regarding research direction in 2020, are not very smartphone
friendly.
Thank You!
Blayne Reed
EA-IPM Hale, Swisher, & Floyd
Subscribe to:
Posts (Atom)