Altmetric Blog

Altmetric Data is Now Available for Study Records

Jean Liu, 12th November 2015

Explore attention data for more than 10,000 study records

We’re proud to announce today that Altmetric has begun displaying a wealth of online attention paid to clinical trial study records from, the world’s largest registry of clinical trials. Operated by the United States National Library of Medicine (NLM) at the National Institutes of Health, holds registrations from about 200,000 trials from more than 170 countries in the world. (You can find out more about the registry here.) Currently, online attention collected from our various sources since 2014 has been matched to over 10,000 study records from; each of these has its own Altmetric details page.

We are excited to introduce attention tracking for this new research output type, as many of our users are involved in clinical research and publication. We hope that adding support for will be valuable for the medical community in general, too. Patients, researchers, healthcare professionals, regulators, and many others can now read the conversations and media coverage surrounding specific clinical trials, even before results have been published. Screenshot of new Clinical Trials details page

For example, this clinical trial run by InSightec recently made headlines when the blood-brain-barrier was non-invasively opened for the first time in a brain tumour treatment; several news outlets and blogs directly linked to the trial’s study record (see the Altmetric details page) but the results have not been published yet.

And this clinical trial run by Sarepta Therapeutics has already been mentioned in Wikipedia, well before the trial has even finished recruiting participants.


How to find attention data for study records

Users of the Altmetric Explorer and Altmetric for Institutions can quickly find all tracked study records by entering “” into the journal filter on the left sidebar. Within the Explorer and AFI, all users can browse through the entire collection of clinical trial study records and read through all the mentions.

Screen Shot 2015-11-12 at 11.59.42










In order to retrieve attention data for an individual clinical trial, users can input the study record’s National Clinical Trials (NCT) identification number (e.g. NCT00346216) within the identifiers filter on the left sidebar of the Explorer and AFI.

Altmetric for Institutions users have the added benefit of being able to enter NCT identification numbers into Custom Groups, and can thus include clinical trial study records in their collections of publications. Soon, we’ll also be enabling records to be imported into Altmetric for Institutions, so that these too can be associated with authors and departments.

Since Altmetric treats the NCT identification number in the same way as any other scholarly identifier, users can also query the basic and commercial APIs with the NCT identification number for the clinical trial study record.

For example, for NCT identification number NCT00346216, the associated basic (free) API call is:

At the moment, it isn’t possible to use the Altmetric Bookmarklet on pages, but we do plan to do this in future. For now, it’s easiest and quickest to access the data using the Explorer/Altmetric for Institutions and our API.


Like this feature? Let us know by sending us a message on Twitter or e-mailing us.

15 Responses to “Altmetric Data is Now Available for Study Records”

InvestigaUNED (@InvestigaUNED)
November 12, 2015 at 12:00 am

Altmetric Data is Now Available for Study Records

Natalie Clairoux (@natalieclairoux)
November 12, 2015 at 12:00 am

Altmetric Data is Now Available for Study Records #altmetrics #medlibs

November 12, 2015 at 12:00 am

Altmetric to start tracking clinical trial study records! Learn more about Altmetric here:

Stacy Konkiel (@skonkiel)
November 12, 2015 at 12:00 am

Clinical trials are often widely publicized before they're published. Now we can track their impacts via @altmetric:

Digital Science (@digitalsci)
November 12, 2015 at 12:00 am

.@altmetric data is now available for study records! #clinicaltrials #altmetrics

Kim Holmberg (@kholmber)
November 12, 2015 at 12:00 am

Altmetric Data is Now Available for Study Records |...

Jean Peccoud (@peccoud)
November 13, 2015 at 12:00 am

[@altmetric blog] Altmetric Data is Now Available for Study Records

Keita Bando (@KeitaBando)
November 13, 2015 at 12:00 am

Altmetric Data is Now Available for Study Records

[…] From the Almetric Blog – [Read more] […]

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Digital Science (@digitalsci)
November 17, 2015 at 12:00 am

ICYMI: @altmetric data is now available for study records! #clinicaltrials #altmetrics

2015: the highlights |
December 30, 2015 at 12:00 am

[…] program, announcing Wikipedia tracking, adding support for The Conversation articles and Clinical Trials, and building the Bookmetrix project with […]

Clinical Research
February 8, 2019 at 12:00 am

Thank you for all these wonderful and informative blog. This will be very helpful for my research studies as I am preparing for Clinical research fellowship. This will very beneficial for me. Thank you once again.keep sharing such informative blogs

Clinical Research In Pune
December 18, 2019 at 12:00 am

I am a student of Post graduate diploma in clinical research. Your article is very helpful for my studies. Thanks for sharing. I am looking forward for more articles from you.

March 30, 2020 at 12:00 am

Very informative post. I am working on project for my clinical research internship. This information you provided in article is very helpful for me to complete my project. Thank you for putting top notch content, I would like to be here again for new updates.

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