AUTH/3497/3/21 - Complainant v Daiichi Sankyo

Lixiana (edoxaban) websites

  • Received
    27 March 2021
  • Case number
    AUTH/3497/3/21
  • Applicable Code year
    2019
  • Completed
    16 December 2021
  • No breach Clause(s)
  • Breach Clause(s)
  • Sanctions applied
    Undertaking received
  • Additional sanctions
  • Appeal
    No appeal

Case Summary

An anonymous complainant, who was originally contactable but later became non-contactable complained about two Daiichi-Sankyo websites for Lixiana (edoxaban).

The complainant alleged that two standalone websites, for a product that could be dangerous to patients if used incorrectly, had multiple failings and errors which did not follow the principles of patient safety.

The detailed response from Daiichi Sankyo is given below.

A Lixiana website (https://lixiana-hcp.co.uk/) ref EDX/21/0176, Date of preparation March 2021 and ref EDX/20/1123, Date of preparation December 2020))

1 Claims ‘Your choice for ageing patients with NVAF’ and ‘Real-world evidence reinforces Lixiana as your DOAC [direct oral anticoagulant] of choice for ageing patients with NVAF1,2’

The complainant alleged that the headline claim, ‘your choice for ageing patients with NVAF [non-valvular atrial fibrillation]’ at the start of the page was misleading and could not be substantiated as Lixiana was only licensed for an age group of ≥75 years in patients with NVAF. It was not appropriate to use such a broad claim in reference to ageing as this could be subjective to interpretation, for example, a 60 year old with NVAF could be seen as ageing but was not suitable for Lixiana treatment.

The complainant alleged that another page with the headline claim ‘Real-world evidence reinforces Lixiana as your DOAC of choice for ageing patients with NVAF1,2’ did not mention the age groups in reference to what the licence was. Health professionals could access any page in isolation, so all pages needed to standalone.

The Panel noted that Lixiana was indicated for ‘prevention of stroke and systemic embolism in adult patients with nonvalvular atrial fibrillation (NVAF) with one or more risk factors, such as congestive heart failure, hypertension, age ≥75 years, diabetes mellitus, prior stroke or transient ischaemic attack (TIA)’. The Panel noted Daiichi-Sankyo’s submission that as patients with NVAF aged, they developed more comorbidities and risk factors which put them at increased risk of stroke and systemic embolism.

The Panel noted Daiichi-Sankyo’s submission that the complainant was incorrect when stating that Lixiana was only licensed in those aged 75 years or over; the use of the wording ‘such as’ indicated that the list of risk factors was not exhaustive and only one risk factor was required to be eligible for Lixiana, which did not necessarily have to be age ≥75 years. The Panel did not consider that the complainant had established that the claims in question were misleading or incapable of substantiation as alleged and, based on the complainant’s narrow allegation, no breaches of the Code were ruled in relation to each claim including no breach of Clause 2.

2 Claim ‘Efficacy and safety profile even when used with appropriate dose reduction’

The complainant alleged that referring to safety profile within a dose reduction claim implied that Lixiana was safe and did not have side effects even when dosage was reduced. Lixiana could be fatal with some side effects and the complainant alleged that to downgrade the safety implications with such a claim put patient safety at risk in breach of the Code.

The Panel noted Daiichi-Sankyo’s submission that the claim was intended to convey that the efficacy and safety profile for edoxaban had been investigated at the standard dose as well as with an appropriately reduced dose and that no claim was made as to what that efficacy and safety profile was. The Panel considered that there was a difference between a medicine being described as ‘safe’ and referring to the ‘safety profile’ of a medicine. In the Panel’s view, it was not unacceptable to refer to a medicine’s safety profile which would likely be interpreted as there being safety information available about the medicine. The Panel considered that, although the claim was somewhat ambiguous, the complainant had not established that it implied that Lixiana was safe and lacked side effects as alleged. The Panel consequently ruled no breaches of the Code including no breach of Clause 2.

3 Claim ‘Lactose not listed as an excipient’

The complainant alleged that the claim ‘Lactose not listed as an excipient’ put patient safety at risk as Daiichi-Sankyo could not guarantee that there had been no contact with lactose during manufacture. This would be a major risk for patients with lactose intolerance as they could have anaphylaxis to lactose. Ironically, this extra information about lactose being in potential contact during manufacture was at the bottom of the page, presented as a footnote. The claim that lactose was not an excipient should have had this important wording around contact during manufacture directly below or adjacent to the claim about lactose as an excipient as opposed to hidden as a footnote.

The Panel noted that the claim ‘Lactose not listed as an excipientƚƚ’ appeared in bold typeface under the section ‘Lixiana – simple and convenient once-daily dosing in NVAF5’, alongside an icon of what appeared to be a milk carton which had ‘0%’ on it. The Panel noted that the reader was directed to a footnote ‘We cannot guarantee that there has been no contact with lactose during manufacture. Use with caution in patients that have had severe anaphylaxis with lactose products’. The caution was referenced to a poster by De Groot JR et al presented at ESC 2019.

The Panel considered the immediate and overall impression and in the Panel’s view the claim was misleading. Whilst the Panel noted that lactose was not listed as an excipient in the Lixiana SPC, when the claim was read in isolation without the footnote, the proactive provision of the statement ‘lactose not listed as an excipient’, alongside the icon of a milk carton which had 0% on it, implied that there would be no concerns using Lixiana in patients with a lactose allergy which was not so; according to the footnote, there was no guarantee that there had been no contact with lactose during manufacture and there was a caveat to use Lixiana with caution in patients that have had severe anaphylaxis with lactose products. The Panel considered that a busy health professional might not have read the important information in the footnote which should have appeared immediately alongside, and with equal prominence to, the claim in question. The Panel therefore ruled breaches of the Code including that Daiichi-Sankyo had failed to maintain high standards.

Clause 2 was a sign of particular censure and was reserved for such use. The Panel noted Daiichi-Sankyo’s submission that lactose was not listed as an excipient in the Lixiana SPC and was not expected to be present in Lixiana but it had included the footnote out of an abundance of caution. The Panel noted its rulings of breaches of the Code above and considered that, on balance, these adequately covered the matter; in the Panel’s view, a breach of Clause 2 was not warranted in the particular circumstances of this case and, on balance, no breach of Clause 2 was ruled.

4 Claim relating to using 30mg of edoxaban in certain circumstances which mentioned low renal function of creatinine clearance between 15-50ml/min

The complainant noted that the claim related to using 30mg of edoxaban in certain circumstances which mentioned low renal function of creatinine clearance between 15-50ml/min. However, in patients with end stage renal disease or on dialysis, Lixiana was not recommended (the complainant referred to Sections 4.2 and 5.2 of the SPC). That information should have been provided as a busy health professional reading the page or someone not experienced with Lixiana usage could interpret the claim in a misleading fashion. Information should always be fair and balanced and should not have been omitted by only mentioning a certain renal function which suited Daiichi-Sankyo.

The Panel noted that under the heading ‘Lixiana – simple and convenient once-daily dosing in NVAF’ beneath a subheading in bold font ‘30mg Reduced dose’, it referred to a dose of 30mg once daily in patients with one or more factors that increased the risk of bleeding including, inter alia, renal impairment, which appeared in bold font next to an image of the kidneys. CrCl 15-50ml/min appeared below in less prominent font. The Panel noted that CrCl 15-50ml/min was described as moderate or severe renal impairment in the Lixiana SPC.

The Panel noted the relevant information in Section 4.2 of the Lixiana SPC. The Panel considered that whether a special warning or precaution needed to be referred to in a particular section of material depended on a consideration of all of the circumstances including the nature of the warning/precaution, the therapy area and the content, layout and intended use of the material.

The Panel considered the immediate and overall impression to a busy health professional. In the Panel’s view, the bold and prominent reference to ‘renal impairment’, which followed the statement ‘Recommended for patients with one or more of the following factors that increases risks of bleeding’ within a section titled ‘30mg Reduced dose’ in bold font might have implied that the 30mg dosage was suitable in all stages of renal impairment which was not so. The reference to CrCl of 15-50ml/min below in less prominent font did not negate the misleading impression given that a 30mg dose could be used in all stages of renal impairment. In the Panel’s view, the omission of the information that any dose of edoxaban was not recommended in patients with end stage renal disease (CrCl < 15 mL/min) or on dialysis, within a section about dosing in renal impairment, was such that it was misleading and therefore breaches of the Code were ruled including that high standards had not been maintained.

Clause 2 was a sign of particular censure and was reserved for such use. The Panel noted that the creatine clearance value corresponding to moderate or severe renal impairment, which was the stage of renal impairment in which a reduced dose of 30mg was recommended, was given on the page, albeit in less prominent font. The Panel did not consider that a breach of Clause 2 was warranted in the particular circumstances of this case and no breach of Clause 2 was ruled.

5 Claims ‘Lower incidence of major bleeding and major GI bleeding’ and ‘Lower incidence of stroke/SEE [systemic embolic events]’

The complainant alleged that the two claims were hanging comparisons as it did not say what Lixiana demonstrated these clinical endpoints against.

The Panel noted that the section at issue stated ‘ETNA-AF supports the efficacy and safety profile of Lixiana in routine clinical practice’, beneath which were the claims ‘Lower incidence of major bleeding and major GI bleeding than in the pivotal phase 3 study’ and ‘Lower incidence of stroke/SEE than in the pivotal phase 3 study’. The Panel noted Daiichi-Sankyo’s submission that the complainant had omitted the whole claims and that the comparison was between the ETNA-AF study and the pivotal phase 3 study. The Panel noted that the complainant bore the burden of proof and, in the Panel’s view, he/she had not established that the two claims were hanging comparisons as alleged and no breach of the Code was ruled in relation to each.

6 Claim ‘ETNA-AF supports the efficacy and safety profile of Lixiana in routine clinical practice’

The complainant alleged that once more the claim implied that Lixiana was safe in breach of the Code.

The Panel noted that the page referred to the safety profile of Lixiana and considered that there was a difference between a medicine being described as ‘safe’ and referring to its ‘safety profile’. In the Panel’s view, reference to the safety profile within the claim in question explained that the real world ETNA-AF data supported the safety profile of Lixiana in routine clinical practice and the findings of the pivotal Phase 3 study. The Panel did not consider that the complainant had established that the claim ‘ETNA-AF supports the efficacy and safety profile of Lixiana in routine clinical practice’ implied that Lixiana was safe as alleged. The Panel thus ruled no breaches of the Code including no breach of Clause 2.

7 Footnotes

The complainant alleged that the page had several footnotes, thereby bypassing qualification of huge content of information presented on the page.

The Panel noted that the complainant bore the burden of proof and did not consider, based on the allegation, that the complainant had established why the use of footnotes on the webpage in question was in breach of the Code and no breach of the Code was ruled.

8 ‘Contact us’ page

The complainant alleged that the contact us page on the website (https://lixiana-hcp.co.uk/contact-us/ solicited medical information enquiries and these should always be unsolicited.

The Panel noted that whilst providing general contact details on a website was good practice, it considered that by inviting readers to contact the company for more information about Lixiana, Daiichi-Sankyo had solicited requests and therefore the responses given by the company in this regard would not be exempt from the definition of promotion. The Panel noted that the drop-down option stated ‘Medical Information’ and therefore the email would likely go to the medical information department who would, on the balance of probabilities, not treat its response as promotional material. However, the Panel had no information before it as to what, if any, questions were received via the website and whether such responses were treated as promotional or not. The Panel noted that the complainant bore the burden of proof and did not consider that he/she had established that Daiichi-Sankyo had breached the Code as alleged. The Panel therefore ruled no breach of the Code.

B My anticoagulant website (https://myanticoagulant.co.uk/ (Date of preparation: December 2020 – EDX/20/1264))

The complainant alleged that the landing page of the website had a brand name, generic name and indication which made it promotional. Therefore, it was inappropriate that there were no sections listed for a patient, member of the public or even the health professional. A member of the public would be promoted to, and certainly look to access the content and ask health professionals for the medicine, which would be inappropriate.

The complainant submitted that in addition, the landing page needed a link to prescribing information for health professionals but was not given.

The Panel noted Daiichi-Sankyo’s submission that the myanticoagulant.co.uk landing page at issue was accessible via a link from the Lixiana.co.uk landing page, if the user confirmed he/she was not a health professional and confirmed that they were a patient taking Lixiana. The Panel further noted Daiichi-Sankyo’s submission that the link to the page could also be found in patient support materials which were labelled as being for patients taking the medicine. The Panel did not have these patient support materials before it.

The Panel queried whether the full Lixiana indication was needed on the myanticoagulant.co.uk landing page; however, in order to get to this landing page, it appeared that the reader would have to select that they were a patient taking Lixiana from the Lixiana.co.uk landing page or would have accessed the page directly based on information in patient support materials given to them when they were prescribed Lixiana. The Panel noted Daiichi-Sankyo’s submission that it did not publicise the website through other routes and that the landing page clearly stated that it was for UK patients who had been prescribed Lixiana.

It was not clear to the Panel if the myanticoagulant.co.uk website could be easily found via an internet search if frequently used terms were entered into a search engine; Daiichi-Sankyo made no submission in that regard. On the evidence before it, the Panel considered that it appeared that the myanticoagulant.co.uk website, and therefore the landing page at issue, was directed to and signposted for individuals who had been prescribed Lixiana. The Panel therefore did not consider that the complainant had established that the myanticoagulant.co.uk landing page promoted a prescription only medicine to the public or would encourage members of the public to ask their health professionals for the medicine as alleged and no breaches of the Code were ruled including no breach of Clause 2 in that regard. Nor did the Panel consider that the complainant had established that the landing page in question promoted a prescription only medicine to health professionals and therefore no breaches of the Code were ruled including no breach of Clause 2 in that regard.