I participated in the Burn Pit Exposure trial a few years ago (yes, during COVID). How can I obtain the results of the study for PACT Act?

If you are sleepless and really want to read the research studies (there are many that the VA used when determining presumptive conditions related to the burn pits), you can read which ones are used here*.

As Sgt (Join to see) said, there is no "PACT Act benefit". What the PACT Act did was declare certain conditions as "presumptive" ones. That means that if you have one of the conditions, it is automatically presumed that it was caused directly or indirectly by your military service. You just need to prove that you have that condition (medical diagnosis) and that you were on active duty at the specific location during the specific timeframe (DD-214, orders, etc.)
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* Airborne Hazards and Burn Pits Research Compilation - https://www.warrelatedillness.va.gov/WARRELATEDILLNESS/docs/AHBPCE_ResearchCompilation_Updated_13123.pdf

SFC Christine Howland I cannot address your study, but a study is for information gathering for future decision making. There is no PACT Act benefit unless you have one of the listed illnesses. Below is the VA PACT Act website. If you have an illness that is listed under this act, submit a claim. Contact a VFW or DAV Veteran Service Officer (VSO) to help you with your claim. Good luck.

https://www.va.gov/resources/the-pact-act-and-your-va-benefits/?utm_source=google&utm_medium=paid_search&utm_campaign=ar_pact_fy23_veterans&gclid=Cj0KCQjwz8emBhDrARIsANNJjS57eMl-EUnXlkugWMdwc_v6wfagT7rxfV2qtgPdXSQ_F10IhdXJtNQaAja0EALw_wcB