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Regenerative reads: brain organoids, Clinicaltrials.gov change

February 28, 2021 / Professor Paul Knoepfler, Ph.D. / 1 Comment

Sometimes change takes a very long time, but with brain organoids or advocating for better information for patients at Clinicaltrials.gov, after waiting you can see some interesting developments. These are two of the regenerative medicine stories of the week, along with some striking research papers. Clinicaltrials.gov Some of us have been advocating for improvements at […]

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FDA outlines potential crackdown on Clinicaltrials.gov offenders

September 23, 2018 / Professor Paul Knoepfler, Ph.D. / 11 Comments

Clinicaltrials.gov is a wonderful resource for its many users, whether a patient searching for a clinical trial to actually participate in or someone doing research as I have done, but it’s not perfect and some sponsors have been breaking the rules regarding its use. It’s a major problem in fact. Based on new draft guidance

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Clinicaltrials.gov Mission At Risk From Proliferating For-Profit Trials

October 14, 2014 / Professor Paul Knoepfler, Ph.D. / 3 Comments

It’s hard to even imagine the world of investigative medicine without the wonderful resource of Clinicaltrials.gov, the global hub for clinical trial listings. I recently interviewed the Director of Clinicaltrials.gov, Dr. Deborah Zarin here, which is a fascinating read. As great as Clinicaltrials.gov is as a resource, unfortunately it faces a new, rapidly growing problem that is a serious

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Interview with Clinicaltrials.gov Director Deborah Zarin

September 24, 2014 / Professor Paul Knoepfler, Ph.D. / 4 Comments

This post is the first in a series about the Clinicaltrials.gov website. This piece is an interview the Director, Dr. Deborah Zarin. I want to thank her for taking the time to answer my questions. Later, I will post Part 2 in which I discuss my concerns about the trend of for-profit stem cell clinic trials

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New review of stem cell supplements and pills

September 18, 2024 / Professor Paul Knoepfler, Ph.D. / 4 Comments

Today’s post is a review and fact-check of stem cell supplements. This is the second time I have looked at the state of stem cell supplements. If anything, it seems things have gotten more complicated and problematic in the last two to three years. Supplements | Stem cell supplements claims | Supplement ads and products | Visiclear,

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Neuralink on the brain: another person gets implant

August 8, 2024 / Professor Paul Knoepfler, Ph.D. / 3 Comments

Neuralink has had a rollercoaster ride in the last few years with many ups and downs. They just recently deployed a brain implant into a second clinical trial participant. So it’s a good time to update where things stand. This more general area of science is often called brain-computer interface (BCI) research. The implants are

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Concerns after interview with Kyle Cetrulo of Perinatal Stem Cell Society

June 4, 2024 / Professor Paul Knoepfler, Ph.D. / Leave a Comment

Perinatal Stem Cell Society email material.

I recently interviewed Kyle Cetrulo of the Perinatal Stem Cell Society. This organization seeks to catalyze big changes in stem cell use and clinical trials in the U.S. In the interview, we touched on many topics including FDA oversight of the cell therapy space. Some of this discussion was in reaction to the new Utah

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Is Liz Parrish the world’s most genetically modified person? Why it might not be such a good thing

May 8, 2024 / Professor Paul Knoepfler, Ph.D. / 10 Comments

Some recent claims had me wondering whether Liz Parrish is the world’s most genetically modified person. She and her firm BioViva are making that claim. It’s an important question but maybe not for the reason many of us first might think. This is not really about one person. Instead, this is a weighty question because

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