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[bioontology-support] [BioPortal] Feedback from Zach Smith

John Graybeal jgraybeal at
Fri Aug 27 13:28:08 PDT 2021


I happen to have previously checked, they do have a 6-month update cycle for MedDRA, releasing about 4-6 weeks before UMLS releases it's biannual update. You can find this information on the official MedDRA web site.

Unfortunately UMLS pulls in *MedDRA* updates only once a year, so for 6-7 months UMLS lags the latest MedDRA release by 6 months. There is nothing we can do to get around this discrepancy in release dates, and currently we are in the lag period, thereby missing most of the interesting COVID terms (and some others).


On Aug 27, 2021, at 10:15 AM, Jennifer Leigh Vendetti <vendetti at<mailto:vendetti at>> wrote:

Hello Zach,

On Aug 27, 2021, at 9:47 AM, support at<mailto:support at> wrote:

Hello Sir or Madam,

I am currently utilizing the bioontology API for MedDRA through RedCAP.

There is a question around the update cycle and current version for reporting.

A few questions:
1) How often is the MedDRA version updated?

We import MedDRA into BioPortal from the National Library of Medicine’s UMLS. The UMLS is updated twice per year in May (the “AA” release) and November (the “AB” release), e.g., this year will be 2021AA and 2021AB.

Although we host MedDRA, we’re not the authors and/or maintainers of the vocabulary. I don’t know whether each UMLS release contains a new version of MedDRA. The UMLS provides a vocabulary documentation page where you can find information about when each vocabulary was last updated:

In particular, this page shows the metadata for MedDRA:

2) Confirming the current version, is it 23.1?


3) Is there a regular cycle for MedDRA updates?

You may want to check with the authors / maintainers of MedDRA directly to get an answer to this question:

Kind regards,

bioontology-support mailing list
bioontology-support at<mailto:bioontology-support at>

John Graybeal
Technical Program Manager
Center for Expanded Data Annotation and Retrieval /+/ NCBO BioPortal
Stanford Center for Biomedical Informatics Research
650-736-1632  | ORCID  0000-0001-6875-5360

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