# Trial Summary: Difference between PLANSUB and ACTSUB **URL:** \ **Category:** SDTM\ **Created:** [September 25, 2017, 11:03am UTC](https://forum.certara.com/t/trial-summary-difference-between-plansub-and-actsub/1169 "2017-09-25T11:03:34Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![XML4Pharma](https://avatars.discourse-cdn.com/v4/letter/x/b2d939/32.png) [@XML4Pharma](https://forum.certara.com/u/XML4Pharma)\ **Post date:** [September 25, 2017, 4:35pm UTC](https://forum.certara.com/t/trial-summary-difference-between-plansub-and-actsub/1169/1 "2017-09-25T16:35:34Z")
This is clearly defined in the CDISC SDTM controlled terminology (READ IT!): [CDISC Terminology | CBIIT](https://www.cancer.gov/research/resources/terminology/cdisc) ACTSUB definition: “Actual number of subjects enrolled; may include subjects who were not randomized”. In your applications, you can also use the RESTful web services to find out: see [XML4Pharma Web Services](http://xml4pharmaserver.com/WebServices/index.html) For example, your application may use the following RESTful request: [http://www.xml4pharmaserver.com:8080/CDISCCTService/rest/CDISCDefinitionFromCDISCTestCode/ACTSUB/TSPARMCD](http://www.xml4pharmaserver.com:8080/CDISCCTService/rest/CDISCDefinitionFromCDISCTestCode/ACTSUB/TSPARMCD) ---
**Author:** ![wick\_sran](https://avatars.discourse-cdn.com/v4/letter/w/35a633/32.png) [@wick\_sran](https://forum.certara.com/u/wick_sran)\ **Post date:** [September 25, 2017, 11:03am UTC](https://forum.certara.com/t/trial-summary-difference-between-plansub-and-actsub/1169/2 "2017-09-25T11:03:34Z")
Hi What is the difference between planned number of subjects and actual number of subjects in Trial Summary domain? In one of the study I am working on, 30 subjects were planned as per protocol and all of them (30) were screened. Later on, one subject withdrew from study and did not receive the dosing. In such scenario, what should be the actual number of subjects, 29 or 30? Thanks. Regards, Wick