...

© 2019 Clinical Data Interchange Standards Consortium, Inc. All rights reserved. 

1 Introduction

This document describes the CDISC implementation of the Non-Small Cell Lung Cancer Symptom Assessment Questionnaire v1.0 (NSCLC-SAQ V1.0), a patient-reported outcome (PRO) questionnaire.  

CDISC does not modify questionnaires, ratings, and scales (QRS) instruments to meet Clinical Data Acquisition Standards Harmonization (CDASH) case report form (CRF) standards.

...

The CDISC Intellectual Property Policy can be found on the CDISC website at: https://www.cdisc.org/about/bylaws.

1.1 Representations and Warranties, Limitations of Liability, and Disclaimers

This document is a supplement to the SDTMIG for Human Clinical Trials and is covered under Appendix F of that document, which describes representations, warranties, limitations of liability, and disclaimers. Please see Appendix F of the SDTMIG for a complete version of this material.

CDISC specifies how to structure the data that has been collected in a database, not what should be collected or how to conduct clinical assessments or protocols.

2 Copyright Status

Critical Path Institute owns the copyright for the NSCLC-SAQ V1.0 and has granted CDISC permission to include this supplement in the CDISC library of QRS data standards supplements. Hence, CDISC developed QSTESTCD and QSTEST for each item based on the actual text on the questionnaire. There may be many versions of this instrument in the public domain or copyrighted. CDISC has chosen to use this version as the data standard.

The CDISC documentation of this instrument consists of: (1) controlled terminology, (2) standard database structure with examples, and (3) CRF(s) annotated with the CDISC SDTMIG variables with submission values (NSCLC-SAQ V1.0 Annotated CRF.pdf).

...

• Version 1.0 Copyright 2015 Critical Path Institute. All Rights Reserved.
  
• McCarrier KP, Atkinson TM, DeBusk KP, Liepa AM, Scanlon M, Coons SJ and on behalf of the Patient-Reported Outcome Consortium. Qualitative Development and Content Validity of the Non-small Cell Lung Cancer Symptom Assessment Questionnaire (NSCLC-SAQ), A Patient-reported Outcome Instrument. Clinical Therapeutics 2016; 38(4):794-810.
  

3 The QS Domain Model

3.1 Assumptions for the QS Domain Model

...

1. Respondents respond to each of the 7 items using a 5-point verbal rating scale from either "No <symptom> at All" to "Very Severe <symptom>", or from "Never" to "Always", (depending on the item's question structure) relative to either intensity or frequency. For the NSCLC-SAQ V1.0, QSORRES is populated with the text description of the rating scale response chosen.  

2. In most cases, the NSCLC-SAQ V1.0 will be administered electronically. No score is displayed for any item on the questionnaire in either the paper form or the electronic format; however, the user manual for the CRF includes the standardized representation of 0 (e.g., "No Coughing at All”, “No Pain at All”, “Never”) through 4 (e.g., “Very Severe Coughing”, "Very Severe Pain", “Always”). Because (a) electronic administration is expected frequently, (b) instructions are provided in the user manual for scoring from C-Path's PRO Consortium, and (c) the numeric score for each question is expected to be submitted with the data, CDISC will represent the standardized scores in QSSTRESC and QSSTRESN.

3. The time period of evaluation for the NSCLC-SAQ V1.0 is populated in the QSEVLINT field in ISO 8601 format when the evaluation interval can be precisely described as duration. The evaluation interval for the NSCLC-SAQ V1.0 is the past 7 days.
   

4. A total score ranging from 0-20, not collected on the NSCLC-SAQ V1.0 CRF, may be submitted as an Electronic Data Transfer (eDT) along with the individual item data for the NSCLC-SAQ V1.0. This original result will be recorded in QSORRES and a standardized representation of the score will be populated in QSSTRESC and QSSTRESN when it is included. The NSCLC-SAQ V1.0 total score is considered as captured data on the CRF and is not considered as derived in the example below.

   1. If operationally defined by the sponsor, it is the sponsor's responsibility to set the --DRVFL flag based on their eCRF process to derive subtotals and total scores. An investigator-derived score written on a CRF will be considered a captured score and not flagged. When subtotal and total scores are derived by the sponsor, the derived flag (--DRVFL) is set to Y. However, when the subtotal and total scores are received from a central provider or vendor, the value would go into QSORRES and QSDRVFL would be null (See SDTMIG Section: 4.1.8.1, Origin Metadata for Variables).

5. Subscores for the NSCLC-SAQ V1.0 concept domains (e.g., cough) will be derived in the Analysis Data Model (ADaM).

6. Terminology

   1. QSCAT, QSTESTCD, and QSTEST values are included in CDISC Controlled Terminology.

   2. A full list of value sets for the result field is provided in Section 4, SDTM Mapping Strategy.

3.2 Example for the NSCLC-SAQ V1.0 QS Domain Model

...

4 SDTM Mapping Strategy

This section is used for reference regarding the CRF data capture and to understand the alignment of the instrument to the SDTM QS domain. It also provides guidance on how the result variables (QSORRES, QSSTRESC, and QSSTRESN) should be populated.

QSTESTCD = "NSCLC101" QSTEST = "NSCLC1-Rate Coughing at Worst"

...