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Phoenix® 8.3, 8.4, 8.5, 8.6, 8.7 December 16, 2025
The following defect has been identified in Phoenix 8.7 and prior releases, dating back at least to Phoenix 8.3. Phoenix users should be aware of this defect and the workaround if they execute NCA (Noncompartmental Analysis) under the conditions described below.
NCA Slopes Selector reverts to Best Fit for Numeric sort column that is declared as type Text and uses scientific notation: When NCA sorting variables used in Main mappings are defined as having data type 'Text' but contain only numeric values where some have more than 8 digits (causing them to display in scientific notation), user-specified time ranges on the Slope Selector or Slopes tab are not preserved and are replaced by Best-Fit when NCA is re-executed. Note that this issue does not occur on the first execution of the NCA object. The issue is more likely to occur when importing data files that specify the data type, such as XPT files; otherwise, Phoenix would default to data type 'Numeric'.
The workaround is to change the data type of the numeric sorting columns from ‘Text’ to ‘Numeric’ before any analysis is done.
This defect will be fixed in the Phoenix 8.8 release.
Certara Product Support
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For urgent matters, please contact us:
📧 support@certara.com 📞 +1 919-852-4620
We value your inquiry and are committed to delivering prompt, high-quality support.
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Phoenix users should be aware of this defect and the workaround if they <br> execute NCA (Noncompartmental Analysis) under the conditions described below.</p>\n<p>NCA Slopes Selector reverts to Best Fit for Numeric sort column that is declared as type Text <br> and uses scientific notation: When NCA sorting variables used in Main <br> mappings are defined as having data type 'Text' but contain only numeric values where some <br> have more than 8 digits (causing them to display in scientific notation), user-specified time <br> ranges on the Slope Selector or Slopes tab are not preserved and are replaced by Best-Fit when <br> NCA is re-executed. Note that this issue does not occur on the first execution of the NCA <br> object. The issue is more likely to occur when importing data files that specify the data type, <br> such as XPT files; otherwise, Phoenix would default to data type 'Numeric'.</p>\n<p>The workaround is to change the data type of the numeric sorting columns from ‘Text’ to <br> ‘Numeric’ before any analysis is done.</p>\n<p>This defect will be fixed in the Phoenix 8.8 release.</p>","defaultLanguageHeader":"Product Notification PHX-041","defaultLanguageMessage":"Phoenix® 8.3, 8.4, 8.5, 8.6, 8.7\nDecember 16, 2025\n\nThe following defect has been identified in Phoenix 8.7 and prior releases, dating back at least \nto Phoenix 8.3. Phoenix users should be aware of this defect and the workaround if they \nexecute NCA (Noncompartmental Analysis) under the conditions described below. \n\nNCA Slopes Selector reverts to Best Fit for Numeric sort column that is declared as type Text \nand uses scientific notation: When NCA sorting variables used in Main \nmappings are defined as having data type 'Text' but contain only numeric values where some \nhave more than 8 digits (causing them to display in scientific notation), user-specified time \nranges on the Slope Selector or Slopes tab are not preserved and are replaced by Best-Fit when \nNCA is re-executed. Note that this issue does not occur on the first execution of the NCA \nobject. The issue is more likely to occur when importing data files that specify the data type, \nsuch as XPT files; otherwise, Phoenix would default to data type 'Numeric'. \n\nThe workaround is to change the data type of the numeric sorting columns from ‘Text’ to \n‘Numeric’ before any analysis is done. \n\nThis defect will be fixed in the Phoenix 8.8 release.","defaultLanguageDisplayName":"English (United States)","isUsingLanguageSupport":true,"translations":{}},"canViewCreateRequestForm":true,"isProjectSimplified":false,"mediaApiUploadInformation":{"token":"eyJhbGciOiJIUzI1NiJ9.eyJpc3MiOiJhMTkwOTkxNi1hZmYzLTQwZWMtODdlZC1jOGZkYzExODUwNWEiLCJhY2Nlc3MiOnsidXJuOmZpbGVzdG9yZTpjb2xsZWN0aW9uOnVwbG9hZC1wcm9qZWN0LTE1NjY4IjpbInJlYWQiLCJjcmVhdGUiLCJ1cGRhdGUiXSwidXJuOmZpbGVzdG9yZTp1cGxvYWQ6KiI6WyJyZWFkIiwiY3JlYXRlIiwidXBkYXRlIl0sInVybjpmaWxlc3RvcmU6Y2h1bms6KiI6WyJyZWFkIiwiY3JlYXRlIl19LCJleHAiOjE3NjkxODg4NDQsIm5iZiI6MTc2OTE4NzY0NCwiYW5vbklkIjoiYW5vbi11c2VyIiwiaHR0cHM6Ly9pZC5hdGxhc3NpYW4uY29tL2FwcEFjY3JlZGl0ZWQiOmZhbHNlfQ.QVfAMdRpvlczPwXkgnPfAQcGnk4MqogWQoQnTCBKkDQ","targetCollection":"upload-project-15668","endpointUrl":"https://api.media.atlassian.com","clientId":"a1909916-aff3-40ec-87ed-c8fdc118505a","tokenDurationInMins":20}},"sharedPortal":{"name":"Certara Service Desk","description":"<p>Welcome to the help center - we're here to help! 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