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Johnson & Johnson Temporarily Pauses COVID-19 Vaccine Candidate Clinical Trial

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the staff of the Ridgewood blog

New Brunswick NJ, At Johnson & Johnson has temporarily paused further dosing in all our COVID-19 vaccine candidate clinical trials, including the Phase 3 ENSEMBLE trial, due to an unexplained illness in a study participant. The participant’s illness is being reviewed and evaluated by the ENSEMBLE independent Data Safety Monitoring Board (DSMB) as well as our internal clinical and safety physicians.

Adverse events – illnesses, accidents, etc. – even those that are serious, are an expected part of any clinical study, especially large studies. Based on our strong commitment to safety, all clinical studies conducted by the Janssen Pharmaceutical Companies of Johnson & Johnson have prespecified guidelines. These ensure our studies may be paused if an unexpected serious adverse event (SAE) that might be related to a vaccine or study drug is reported, so there can be a careful review of all of the medical information before deciding whether to restart the study.

Johnson & Johnson stated , “We must respect this participant’s privacy. We’re also learning more about this participant’s illness, and it’s important to have all the facts before we share additional information.”

SAEs are not uncommon in clinical trials, and the number of SAEs can reasonably be expected to increase in trials involving large numbers of participants. Further, as many trials are placebo-controlled, it is not always immediately apparent whether a participant received a study treatment or a placebo.

“Study Pause” vs. “Regulatory Hold:” What’s the Difference?

While these terms are sometimes used interchangeably, there is a significant distinction between a study pause and a regulatory hold of a clinical trial.

study pause, in which recruitment or dosing is paused by the study sponsor, is a standard component of a clinical trial protocol. As noted in the ENSEMBLE study protocol, Johnson & Johnson has robust mechanisms in place to protect the safety of participants in its clinical trials. While the Company informs all study investigators, we typically do not communicate study pauses publicly.

regulatory hold of a clinical trial is a requirement by a regulatory health authority, such as the U.S. Food and Drug Administration (FDA). As outlined in our transparency commitments, we proactively disclose any regulatory hold of a pivotal clinical trial.

2 thoughts on “Johnson & Johnson Temporarily Pauses COVID-19 Vaccine Candidate Clinical Trial

  1. This should surprise no one.

    Clinical trials take years.

  2. Tricks to affect election. After Nov 3, it will go fast

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