Vortioxetine for Cognitive Function in ALK-positive NSCLC Treated With Lorlatinib

Digit Symbol Substitution Test (DSST). The DSST measures psychomotor speed and sustained attention. Participants match symbols to digits within a fixed time limit. Score range: 0 to 90 (number of correct substitutions in 90 seconds); higher scores indicate better cognitive performance. Within-subject change from baseline analyzed using ANCOVA.

Trail Making Test Part A (TMT-A). The TMT-A measures processing speed and visual scanning. The outcome is time to completion in seconds; lower scores indicate better performance. Clinically meaningful change assessed using the Reliable Change Index (RCI).

Trail Making Test Part B (TMT-B). The TMT-B measures executive function and set-shifting ability. The outcome is time to completion in seconds; lower scores indicate better performance. Clinically meaningful change assessed using the Reliable Change Index (RCI).

D2-R Test of Attention. The D2-R Test of Attention measures selective and sustained visual attention. The primary metric is the Total Concentration Performance score (TN-E), calculated as total items processed minus errors. Score range: 0 to 299; higher scores indicate better attentional performance.

Wechsler Adult Intelligence Scale IV (WAIS-IV), Working Memory Index. The WAIS-IV Working Memory Index is a standardized composite score derived from Digit Span and Arithmetic subtests. Score range: 45 to 155 (mean 100, SD 15); higher scores indicate better working memory capacity. Change from baseline analyzed using linear mixed-effects models (LMM).

Wechsler Adult Intelligence Scale IV (WAIS-IV), Processing Speed Index. The WAIS-IV Processing Speed Index is a standardized composite score derived from Coding and Symbol Search subtests. Score range: 45 to 155 (mean 100, SD 15); higher scores indicate better processing speed. Change from baseline analyzed using LMM.

California Verbal Learning Test (CVLT). The California Verbal Learning Test measures verbal learning and episodic memory across five immediate recall trials plus short- and long-delay recall. Primary metric: Total Learning Trials 1-5 (score range: 0 to 80); higher scores indicate better verbal memory performance.

Phonemic Verbal Fluency Task. Phonemic verbal fluency is measured by the total number of words beginning with a specified letter generated in 60 seconds. There is no fixed maximum; higher scores indicate better phonemic language production and frontal-executive function. The average of three letter trials (F, A, S) will be reported.

Semantic Verbal Fluency Task. Semantic verbal fluency is measured by the total number of words from a specified semantic category generated in 60 seconds. There is no fixed maximum; higher scores indicate better semantic retrieval and language functioning.

INECO Frontal Screening (IFS). The INECO Frontal Screening (IFS) evaluates frontal lobe functions including motor programming, verbal fluency inhibitory control, working memory, abstraction capacity, and reflex suppression. Score range: 0 to 30; higher scores indicate better executive and frontal lobe functioning.

Perceived Deficits Questionnaire (PDQ), Attention/Concentration Subscore. The PDQ Attention/Concentration subscore measures self-reported cognitive difficulties in attention and concentration. Subscore range: 0 to 20; higher scores indicate greater perceived cognitive impairment. Analyzed using mixed models for repeated measures (MMRM).

Perceived Deficits Questionnaire (PDQ), Planning/Organization Subscore. The PDQ Planning/Organization subscore measures self-reported difficulties in planning and organizational ability. Subscore range: 0 to 20; higher scores indicate greater perceived impairment. Analyzed using MMRM.

The Clinical Global Impressions-Improvement scale (CGI-I) is a clinician-rated measure of overall clinical improvement relative to baseline. Score range: 1 (very much improved) to 7 (very much worse); lower scores indicate greater improvement. Response is defined as a score of 1 or 2. Analyzed using MMRM.

Montgomery-Asberg Depression Rating Scale (MADRS). The MADRS is a clinician-administered scale measuring severity of depressive symptoms across 10 items. Score range: 0 to 60; higher scores indicate greater depression severity. Response defined as >= 50% reduction from baseline; remission defined as score < 10. MCID: >= 50% reduction.

Patient Health Questionnaire (PHQ-9). The PHQ-9 is a 9-item self-report scale for depression screening and severity assessment. Score range: 0 to 27; higher scores indicate greater depressive symptom burden. Severity categories: minimal (0-4), mild (5-9), moderate (10-14), moderately severe (15-19), severe (20-27). MCID: >= 5-point reduction.

36-Item Short Form Health Survey (SF-36), Physical Component Summary (PCS). The SF-36 Physical Component Summary (PCS) is a norm-based composite score derived from four SF-36 subscales (physical functioning, role-physical, bodily pain, general health). Score range: 0 to 100; higher scores indicate better physical health status. MCID: >= 4 points.

36-Item Short Form Health Survey (SF-36), Mental Component Summary (MCS). The SF-36 Mental Component Summary (MCS) is a norm-based composite score derived from four SF-36 subscales (vitality, social functioning, role-emotional, mental health). Score range: 0 to 100; higher scores indicate better mental health status. MCID: >= 4 points.

Quality of Life Enjoyment and Satisfaction Questionnaire Short Form (Q-LES-Q-SF). The Q-LES-Q-SF measures overall enjoyment and satisfaction with daily life across 14 items rated on a 5-point Likert scale (1 = very poor to 5 = very good). Total score range: 14 to 70; higher scores indicate greater life satisfaction. Items 15 and 16 are scored separately and not included in the total. MCID: >= 9 points.

EuroQol 5-Dimension Questionnaire (EQ-5D), Utility Index. The EQ-5D utility index is derived from five health dimensions (mobility, self-care, usual activities, pain/discomfort, anxiety/depression) using the Spanish value set. Score range: -0.654 to 1.0; higher scores indicate better health utility (1.0 = full health, 0 = death). MCID: >= 0.1.

EuroQol Visual Analogue Scale (EQ-VAS). The EQ-VAS is a vertical visual analogue scale for overall self-rated health. Score range: 0 to 100; higher scores indicate better self-rated health (100 = best imaginable health state). MCID: >= 7 points.

University of California San Diego Performance-Based Skills Assessment (UPSA), Composite Score. The UPSA composite score combines the UPSA-VIM and UPSA-Brief to measure real-world functional capacity across domains including finance and communication. Score range: 0 to 100; higher scores indicate better functional performance. Analyzed using ANCOVA.

Work Limitations Questionnaire (WLQ). The WLQ measures the degree to which health problems interfere with job performance across four scales: time management, physical demands, mental-interpersonal demands, and output demands. Each scale is scored 0 to 100; higher scores indicate greater work limitation. An overall WLQ productivity loss score will also be reported.

Cognitive and Physical Functioning Questionnaire (CPFQ). The CPFQ is a 7-item self-report instrument measuring cognitive and physical energy symptoms relevant to depression and related conditions. Score range: 7 to 42; higher scores indicate greater cognitive and physical impairment. Analyzed only in participants with a baseline score > 25.

Response Evaluation Criteria in Solid Tumors (RECIST 1.1). Tumor response is assessed by contrast-enhanced CT scan per RECIST version 1.1 criteria. Response is classified as: Complete Response (CR), Partial Response (PR), Stable Disease (SD), or Progressive Disease (PD). Best overall response will be documented for each participant.

Common Terminology Criteria for Adverse Events (CTCAE), Version 5.0. All adverse events (AEs) will be graded by type, severity (Grade 1: mild; Grade 2: moderate; Grade 3: severe; Grade 4: life-threatening; Grade 5: death), and causality attribution (unrelated / unlikely / possible / probable / definitely related to vortioxetine). Predefined study suspension thresholds: > 25% Grade 3, > 10% Grade 4, or > 3% Grade 5 AEs attributable to vortioxetine.