# How can I get access to the SAA status of the subjectives in Prodromal or HC cohort? **URL:** \ **Category:** Accessing and Understanding Data\ **Tags:** data-access\ **Created:** [November 6, 2025, 11:05am UTC](https://rcop.michaeljfox.org/t/how-can-i-get-access-to-the-saa-status-of-the-subjectives-in-prodromal-or-hc-cohort/1324 "2025-11-06T11:05:34Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![blin](https://avatars.discourse-cdn.com/v4/letter/b/76d3ee/32.png) [@blin](https://rcop.michaeljfox.org/u/blin)\ **Post date:** [November 6, 2025, 11:05am UTC](https://rcop.michaeljfox.org/t/how-can-i-get-access-to-the-saa-status-of-the-subjectives-in-prodromal-or-hc-cohort/1324/1 "2025-11-06T11:05:34Z")
HI there! I need the SAA status of the subjectives in Prodromal or HC cohort for some research on biomarkers with PD, but I couldn’t find it on PPMI, could someone told me how to apply for it? ---
**Author:** ![ecebayram](https://sea1.discourse-cdn.com/michaeljfox/user_avatar/rcop.michaeljfox.org/ecebayram/32/504_2.png) [@ecebayram](https://rcop.michaeljfox.org/u/ecebayram)\ **Post date:** [November 7, 2025, 3:19pm UTC](https://rcop.michaeljfox.org/t/how-can-i-get-access-to-the-saa-status-of-the-subjectives-in-prodromal-or-hc-cohort/1324/2 "2025-11-07T15:19:19Z")
i never used the SAA data in PPMI but looping in our MJFFers to see if they would know or would know the right people to bring to the convo @gginnan @jgottesman ---
**Author:** ![jgottesman](https://sea1.discourse-cdn.com/michaeljfox/user_avatar/rcop.michaeljfox.org/jgottesman/32/46_2.png) [@jgottesman](https://rcop.michaeljfox.org/u/jgottesman)\ **Post date:** [November 7, 2025, 5:44pm UTC](https://rcop.michaeljfox.org/t/how-can-i-get-access-to-the-saa-status-of-the-subjectives-in-prodromal-or-hc-cohort/1324/3 "2025-11-07T17:44:28Z")
Thanks for the ping, @ecebayram ! @blin, have you had a chance to see the SAA overview video that @jodiefm put together? There is a thread on it here: [SAA data in PPMI - data overview video](https://rcop.michaeljfox.org/t/saa-data-in-ppmi-data-overview-video/452) . My understanding is that it largely covers what is in the [PPMI Data User Guide](https://www.ppmi-info.org/sites/default/files/docs/PPMI%20Data%20User%20Guide.pdf) section on SAA (begins on page 32). There are also additional PPMI-related guidance documents which live here in case they are useful: [https://www.ppmi-info.org/access-data-specimens/guidance-resources](https://www.ppmi-info.org/access-data-specimens/guidance-resources). Let me know if the video/user guide aren’t able to clarify and we can investigate further! ---
**Author:** ![jgottesman](https://sea1.discourse-cdn.com/michaeljfox/user_avatar/rcop.michaeljfox.org/jgottesman/32/46_2.png) [@jgottesman](https://rcop.michaeljfox.org/u/jgottesman)\ **Post date:** [November 7, 2025, 5:51pm UTC](https://rcop.michaeljfox.org/t/how-can-i-get-access-to-the-saa-status-of-the-subjectives-in-prodromal-or-hc-cohort/1324/4 "2025-11-07T17:51:11Z")
Also to ask: do you currently have access to the PPMI data itself? I was able to query IDA with a keyword search for ‘SAA’ and saw the ‘SAA\_Biospecimen\_Analysis\_Results’ table within ‘Biospecimen’ which includes _cohort, SAAMethod, SAA\_Status, and SAA\_Type_ which should help (more info in the data dictionary on these, which can be found at the guidance resources link above). Let us know! ---
**Author:** ![lkirsch](https://sea1.discourse-cdn.com/michaeljfox/user_avatar/rcop.michaeljfox.org/lkirsch/32/47_2.png) [@lkirsch](https://rcop.michaeljfox.org/u/lkirsch)\ **Post date:** [December 10, 2025, 2:23pm UTC](https://rcop.michaeljfox.org/t/how-can-i-get-access-to-the-saa-status-of-the-subjectives-in-prodromal-or-hc-cohort/1324/5 "2025-12-10T14:23:05Z")
@blin Apologies I did not see this earlier. The data you are looking for (SAA on prodromal and HC cohorts) is actually sequestered and requires you to make a Tier 3 sequestered data access request. You can find the full instructions to do so here! [https://www.ppmi-info.org/sites/default/files/docs/PPMI%20Data%20Access%20Guidelines.pdf](https://www.ppmi-info.org/sites/default/files/docs/PPMI%20Data%20Access%20Guidelines.pdf)