Doubts drawn on study that forms part of Chris Froome's asthma drug defence
A study conducted on dogs is a key part of Froome's defence has had doubts cast over it
Doubts have been raised about the research paper that Chris Froome is using to defend his high reading for an asthma drug in the 2017 Vuelta a España.
Team Sky's star tested over the allowed limit of asthma drug salbutamol after stage 18 on his way to winning the Vuelta overall in September. A judge should rule later this summer, possibly delivering Froome a ban and stripping his Vuelta a España title.
Froome and Team Sky have consistently denied any wrongdoing.
>>> Everything you need to know about Chris Froome’s salbutamol case
Froome, according to an article in May, is basing part of his defence on a published paper from the Centre for Human Drug Research in Leiden in the Netherlands. It recalibrated his reading from 2000 to 1429 nanograms per millilitre (ng/ml), much closer to the "actionable" threshold of 12.
It also said that WADA's salbutamol test is unsafe given that levels in urine can vary wildly. As many as 15.4 per cent of the tests can could produce false positives and putting the presumption of guilt on the athlete is "completely unacceptable."
The Daily Mail reported on Monday that the paper "is the subject of intense scrutiny" at the Union Cycliste Internationale (UCI) and that it simply could be a "delaying tactic" so that Froome can race for a fifth Tour de France in July. Also, the article pointed out that the Leiden research was carried out on dogs, not humans.
Get The Leadout Newsletter
The latest race content, interviews, features, reviews and expert buying guides, direct to your inbox!
Another concern could be that one of the paper's authors Adam Cohen is the editor at the British Journal of Clinical Pharmacology and could have had a say when deciding to publish the findings. The Daily Mail article also raised the point that author Jules Heuberger argued in 2017 that EPO does not affect an athlete's performance.
The UCI's anti-doping lawyers are combing though the pages, around 1500, of submitted documents by Froome and his legal team. The included Leiden paper does not seem to bother WADA when considering its salbutamol testing model.
"I read the article you refer to and no, no concern at all," WADA's science director, Dr Olivier Rabin said last month. "Nothing new as their model is based on three well-known studies. We believe the current threshold is solid considering the scientific literature published on salbutamol over the past 20 years."
Rabin might have also looked at the impact score of the British Journal of Clinical Pharmacology. The article on Monday said that the ranking system for scientific publications lists it at 3.83. As an example, CA-A Cancer Journal For Clinicians has a 131.72 score.
Though some complain, Froome is free to race in the meantime due to the rules on specified or known substances that athletes take. Salbutamol is permitted, just that one cannot exceed a certain threshold.
Froome has already won the Giro d'Italia this season, and will be racing for a historic Giro/Tour double and fifth Tour title next month.
"It's difficult for ordinary people to understand," UCI boss David Lappartient said recently. "They say, 'What are they doing at the UCI? They do not move ahead with the case. Yes but this case is much more complex than others. And perhaps he has more means to demonstrate this complexity precisely, where others might have given up for not being able to carry out more cumbersome procedures."
Froome explained after his Giro win: "Once the time is right, we will share the information with everyone, and I am sure they will see it from our point of view."
Thank you for reading 20 articles this month* Join now for unlimited access
Enjoy your first month for just £1 / $1 / €1
*Read 5 free articles per month without a subscription
Join now for unlimited access
Try first month for just £1 / $1 / €1
Gregor Brown is an experienced cycling journalist, based in Florence, Italy. He has covered races all over the world for over a decade - following the Giro, Tour de France, and every major race since 2006. His love of cycling began with freestyle and BMX, before the 1998 Tour de France led him to a deep appreciation of the road racing season.
-
Tweets of the week: Brutal weather at Flèche, an idiot sandwich and is there a new POC helmet?
There's a lot of love for Kasia Niewiadoma, and it turns out Norwegians are good in bad weather
By Adam Becket Published
-
Juanpe López wins Tour of the Alps, does 34 kick-ups with a football
'My coach said to do it for Betis,' says Spaniard of his boyhood football club
By Tom Davidson Published
-
'It was time to change': No regrets for Rod Ellingworth after leaving Ineos Grenadiers
New Tour of Britain race director says he is still on good terms with Dave Brailsford after resigning from team last year
By Tom Thewlis Published
-
'I’m just here to enjoy it': Tom Pidcock on his surprise Paris-Roubaix appearance
British rider was a late addition to the Ineos Grenadiers team for the race across the pavé
By Tom Thewlis Published
-
The art of peaking with Geraint Thomas: 'It’s easy to take for granted that 9 times out of 10 I hit my goals'
The Welshman also calls for better governance in the sport to help it grow further
By Chris Marshall-Bell Published
-
Ineos Grenadiers’ 500th victory was claimed by a woman; why do they still not have a team?
The British squad is one of the richest in cycling - but Ineos still won’t stump up for a women’s team
By Adam Becket Published
-
'This is so much more than a number': Six of the best Ineos Grenadiers wins as team claims 500th race victory
Pauline Ferrand-Prévot took the 500th team win at the weekend
By Tom Thewlis Published
-
Tom Pidcock 'wouldn’t be surprised' to see attacks before the Poggio at Milan-San Remo
British rider will lead the line for Ineos Grenadiers alongside Filippo Ganna
By Tom Thewlis Published
-
Ineos Grenadiers delighted with Egan Bernal’s late cameo on stage one of Paris-Nice
Colombian snapped up key bonus seconds in the general classification battle on run in to Les Mureaux
By Tom Thewlis Published
-
‘It doesn’t change anything’ - Tom Pidcock’s coach on Tadej Pogačar at Strade Bianche
Kurt Bogaerts says the pressure is off for Pidcock as he looks to defend the title he emphatically won last year
By Tom Thewlis Published