Data Integrity Issue Haunts Again With Covid Vaccine?

Data Integrity Issue Haunts Again With Covid Vaccine? 

On March 22, 2021, by a media release, AstraZeneca announced that its ‘US Phase III trial of AZD1222 demonstrated statistically significant vaccine efficacy of 79% in preventing symptomatic COVID-19 and 100% efficacy at preventing severe disease and hospitalization.’

Quite unexpectedly, on March 23, 2021, the above claim on AstraZeneca’s Covid-19 vaccine, triggered a rare post-midnight statement by the National Institute of Allergy and Infectious Diseases (NIAID) of the United states. It rekindled a lurking fear of many, yet again, on the issue of questionable data integrity within the drug industry, in general.

This News Release articulated: “Late Monday, the Data and Safety Monitoring Board (DSMB) notified NIAID, BARDA, and AstraZeneca that it was concerned by information released by AstraZeneca on initial data from its COVID-19 vaccine clinical trial.”

The concern was on the possible inclusion of outdated information from that trial, ‘which may have provided an incomplete view of the efficacy data.’ It urged AstraZeneca to work with the DSMB to review the efficacy data and ensure the most accurate, up-to-date efficacy data be made public as soon as possible.

Later on that very day, AstraZeneca released another statement saying: “The numbers published yesterday were based on a pre-specified interim analysis with a data cutoff of 17 February. We have reviewed the preliminary assessment of the primary analysis and the results were consistent with the interim analysis. We are now completing the validation of the statistical analysis.”

The company further emphasized, “We will immediately engage with the independent data safety monitoring board (DSMB) to share our primary analysis with the most up to date efficacy data.” And also added that AstraZeneca intends to issue the results of the primary analysis within 48 hours.

However, the impact of the NIAID’s announcement on the unfurling of AstraZeneca’s Covid-19 vaccine in the U.S, is yet to be ascertained. It’s also still unknown what this news could mean for the vaccine’s alleged efficacy. Be that as it may, it all happened at a time when millions of people, in many countries of the world, including India, have already taken, at least, the first dose of this vaccine.

In this article, I shall deliberate on broader aspects of this critical issue and its relevance in the present case. However, before doing so, let’s try to figure out, why data integrity still remains a major concern of many experts in this area.

Why data integrity is still a major issue:

There are many studies that raised serious concern in this area, over a period of time. For example – ‘Dozens of recent clinical trials may contain wrong or falsified data’ – was claimed by the research paper that was discussed in ‘The Guardian’ on June 05, 2017.

This study reviewed data from 5,087 clinical trials, published during the past 15 years, in two prestigious medical journals – JAMA and the New England Journal of Medicine, and six anesthesia journals. In total, 90 published trials had underlying statistical patterns that were unlikely to appear by chance (or be termed as ‘unforced error’) in a credible dataset, the paper concluded.

Even my own article of September 30, 2019 deliberated on various facets of ‘data integrity’ involving novel therapy, across the world. There, I quoted one of the top medical experts related to the above paper, saying: “It’s very scary that we may be treating patients based on false evidence.” He further added: “It may be the case that certain treatments may need to be withdrawn from use.”

The ghost of a recent example still haunts:

Not so long ago, much reported fallout from Novartis’ alleged data manipulation fiasco with its billion-dollar gene therapy Zolgensma, shook all concerned. So much so, that the Company CEO had to pledge during an investor conference that: ‘the company will be more proactive in reporting data integrity issues to the FDA.’

He also added, Novartis has responded to the FDA’s Form 483 and is making documents available as requested, while reiterating that the data manipulation uncovered at the San Diego site “does not impact the safety, efficacy or quality of Zolgensma.”

The key point to ponder, therefore, especially in AstraZeneca’s Covid-19 vaccine case – is the same ghost haunting us, yet again?

Is it happening again? 

One may, possibly, find some cue of the answer to this question while looking at what followed after ‘validation of the statistical analysis’ by AstraZeneca, as it was promised by the company. Interestingly, the following day, after apparently a thorough analysis,...continue reading at..Data Integrity Issue Haunts Again With Covid Vaccine?