David Tuller

Trial By Error: A Follow-Up to the Follow-Up Letter to Mahana

By David Tuller, DrPH On the Mahana Therapeutics website, Robert Paull, the CEO and co-founder, explains in a statement that his personal interest in developing treatments for GI problems arose out of the longtime suffering of a family member. His account is heartfelt and compelling. Unfortunately, Mr Paull and his company have placed their bets …

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Trial By Error: My Virtual Appearance in Sheffield

By David Tuller, DrPH I was supposed to be in Bristol, England, last week at the CFS/ME Research Collaborative conference. The conference went on as scheduled, but I decided the weekend before that the situation was getting too dicey to leave home. I didn’t want to get swept up in lockdowns and international travel blockades …

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Trial By Error: Simon McGrath on Leonard Jason’s Study of US Pediatric Prevalence

By David Tuller, DrPH Leonard Jason, a professor of psychology at DePaul University in Chicago, is a recognized expert in research on the prevalence of and case definitions for the illness (or cluster of illnesses) variously referred to as myalgic encephalomyelitis, chronic fatigue syndrome, ME/CFS, CFS/ME and other names. I posted an interview with him …

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Trial By Error: Another Letter About Mahana; BerkeleyWellness on IBS Study

By David Tuller, DrPH I have been trying to find out why Mahana Therapeutics, a San Francisco-based start-up, has chosen to disseminate misleading information about a web-based cognitive behavior therapy program for people with irritable bowel syndrome. Because Mahana’s co-founder and CEO, Rob Paull, has not responded to my letters, I have contacted some of …

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Trial By Error: My Follow-up Letter to Mahana Therapeutics’ CEO

By David Tuller, DrPH Last week, I wrote to Rob Paull, the co-founder and CEO of Mahana Therapeutics, regarding the company’s misleading claims about the web-based cognitive behavior therapy program for irritable bowel syndrome it recently licensed from King’s College London. I have also written to Professor Rona Moss-Morris, the co-lead investigator of ACTIB, the …

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Trial By Error: My Letter to Mahana’s CEO and Co-Founder

By David Tuller, DrPH Venture capitalist Robert Paull is listed on the Mahana Therapeutics website as the company’s co-founder and CEO. I have no idea how he got involved with this group of UK researchers and King’s College London. Given my own experiences, I would certainly have advised him against getting in bed with them, …

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