FDA's Response to our Petition
The FDA granted our petition with a $325,000 grant to Children's Hospital of Philadelphia (CHOP) to study whether PEG 3350 breaks down or is absorbed in children. https://grants.nih.gov/grants/guide/rfa-files/RFA-FD-14-088.html
The study was due to be completed in 2015, but never began enrolling participants, due to what we were told were technical difficulties. The grant has now expired. The study was issued again to CHOP with an additional $325,00 grant (for a total of $650,000), https://www.usaspending.gov/award/CONT_AWD_75F40120C00061_7524_-NONE-_-NONE-. Meanwhile, the FDA did agree to increase warnings on PEG 3350 product inserts for people with certain medical conditions.
This is CHOP's position on the PEG 3350 laxatives they are studying, showing strong support for the products:
https://media.chop.edu/data/files/pdfs/polyethyline-laxatives-fact-sheet.pdf
The studies cited are not long-term studies and neuropsychiatric adverse events were not evaluated before and after use by asking parents to track them. "No neuropsychiatric events were reported" because the study did not include them and parents had no idea PEG 3350 could cause them. The study FDA granted in response to our petition is the first study to look at neuropsychiatric adverse events related to PEG 3350 use in children.