About this trial
People who have undergone curative surgery for non-small cell lung cancer (NSCLC) often experience reduced quality of life (QoL), a high burden of symptoms, and physical deconditioning. Current Danish rehabilitation offers are heterogeneous and inconsistent and not tailored to the specific needs of this population. Additionally, some patients continue to suffer from persistent physical symptoms months or even years after surgery, yet no targeted support is currently available for them. Singing - delivered as a structured form of training - has shown benefits in improving both physical and psychological outcomes in individuals with chronic obstructive pulmonary disease (COPD). Although singing has not yet been studied in NSCLC patients, the two conditions share overlapping symptoms and characteristics. Therefore, the present study aims to explore whether a singing-based intervention can help reduce symptom burden and improve physical function and QoL in NSCLC patients 6 to 18 months post-surgery. To test this, a multi-centre randomised controlled trial (RCT) will be conducted, comparing a singing intervention to usual care. Given that travel and distance often pose significant barriers to participation, the intervention will be delivered online.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Persistent symptoms, i.e., an EORTC-QLQ-C30 symptom domain score (in any item) of ≥2 (="clinically relevant symptom or problem that should have healthcare professional attention"),
Surgery for stage I lung cancer 6-18 months (+/- one month) earlier,
Motivated for participating in the project (and acceptance of randomisation procedure),
Access to a computer or a tablet with internet access,
Disqualifiers
Unstable coronary diseases,
Severe cognitive disabilities (e.g., dementia),
Indication for adjuvant chemotherapy or other antineoplastic therapy,
Signs of lung cancer recurrence at regular follow-up CT scan.
Trial design
Crossover
Treatments tested in this trial
Singing training (Singing for Lung Health (SLH))
Behavioral10 weeks of singing training (conducted according to the Singing for Lung Health (SLH) approach). The singing training will be delivered online (1 1/2 hour twice a week) by professional singing teachers specifically trained and experienced within SLH. Sessions include physical, vocal, and breathing exercises and musical repertoire. Besides, movement, dancing, and artefacts for playful games are included along with singing. Each session consists of 20 min physical warm-ups, 20 min vocal warm-up with rhythm and pitch games, 40 min singing (incl. break), and 10 min cool-down.
Control group: Usual care
BehavioralThe control group will receive usual care, i.e., no specific additional intervention above those which the person usually engages with.
Treatment groups
Trial outcomes
Primary outcomes
Change in Physical capacity
Assessed with the Six Minute Walking Test (6MWT) (assessor-collected) , measured in meters walked in 6 minutes. Minimal important difference: \>30 m.
Perceived exertion
Measured using BORG CR-10 dyspnoea scale (self-reported). The scale ranges from 0 to 10 points, where 0 represents no exertion/dyspnoea and 10 represents maximal exertion/dyspnoea. Minimal important difference: 1 point.
Change in Health-related quality of life (HRQoL)
St. George's Respiratory Questionnaire (SGRQ) (self-reported questionnaire). SGRQ has 50 items with 76 weighted responses and four scores: Total, Symptom, Activity, Impact. Each score ranges from 0 to 100, with 100 representing worst possible health status and 0 best possible. Minimal important differnence: -4 units.
Secondary outcomes
Change in Quality of life
EORTC 30 item Quality of Life Questionnaire (QLQ-C30), v. 3.0 (self-reported questionnaire). Functional domains: Physical function, role functioning, emotional function, cognitive function, social function. QLQ-C30 has 30 items: 1-28 completed on a 4-point Likert scale (1=not at all, 2=a little, 3=quite a bit, and 4=very much); 29-30 completed on a 7-point scale defined by extremes (1=very poor, 7=excellent). Raw and transformed scores are calculated, based on instructions in the QLQ-C30 scoring manual. Calculated scores range: 0-100. For the Functional scale, 100 = highest possible level of functioning. Cutoffs for clinically important problems: based on EORTC Quality of Life Group (Physical functioning (≤83), role functioning (≤58), emotional functioning (≤71), cognitive functioning (≤75), social functioning (≤58))
Change in Symptoms burden
EORTC 30 item Quality of Life Questionnaire (QLQ-C30), v. 3.0 (self-reported). Symptom domains: Fatigue, nausea/vomiting, pain, sleep disturbances, dyspnoea, appetite loss, constipation, diarrhea, financial concerns. QLQ-C30 has 30 items: For 1-28: 4-point Likert scale (1=not at all, 2=a little, 3=quite a bit, 4=very much); for 29-30: 7-point scale defined by extremes (1=very poor, 7=excellent). Raw and transformed scores are calculated, based on the QLQ-C30 scoring manual. Calculated scores range: 0-100. For the Symptom scale, 100 = highest possible symptom burden. Cutoffs for clinically important problems: EORTC Quality of Life Group: Fatigue (≥39), nausea/vomiting (≥8), pain (≥25), insomnia (≥50), dyspnoea (≥17), appetite loss (≥50), constipation (≥50), diarrhea (≥17), financial concerns (≥17). Danish Multi-disciplinary Cancer Groups: ≥2 = "clinically relevant symptom"; ≥3 = "severe/serious symptom" (pain, dyspnoea, nausea/vomiting: ≥2 = "severe/serious symptom").
Change in symptoms burden
EORTC Quality of Life Lung Cancer Module Questionnaire (QLQ-LC13) is a supplementary lung cancer-specific questionnaire to be used in conjunction with the QLQ-C30. Both questionnaires developed and validated in patients with lung cancer (self-reported). The module consists of 13 items and comprises multi- and single-item measures of lung cancer-associated symptoms (i.e. coughing, haemoptysis, dyspnoea and pain). Scaling of items: 1 (Not at all) to 4 (Very much). Scoring: 0 to 100. (higher scores = increasing symptom levels. Minimal important difference not defined.
Change in symptoms burden: Dyspnoea
mMRC (Modified Medical Research Council Dyspnoea Scale) (self-reported). The scale includes scores from 0-4, with grade 0 corresponding to "Dyspnoea only when strenuous exercise" and grade 4 corresponding to "Too dyspneic to leave house or breathless when dressing. Minimal important difference: 1 point.
Other outcomes
Resting blood samples
Blood Cells: Hemoglobin (Hb) (mmol/L); Hematrocrit (Hct) (L/L or %); Thrombocytes (x109/L); Leukocyte differential count: (x109/L). Kidney function: eGFR (mL/min/1,73m2). Liver function: ASAT (U/L); ALAT (U/L); ALB (U/L); ALP (g/L). Metabolic function: Lactate dehydrogenase (LDH), mmol/L. Stress response: Epinephrine (Adrenaline) (nmol/L); Norepinephrine (Noradrenaline) (nmol/L); Dopamin (nmol/L). Inflammation and inflammatory drivers: C-reactive protein (CRP) (mg/L); Inflammatory cytokines (TNF-α, IL-1β, IL-6) (pg/mL); JAK2V617F mutation.
Acute physiological response to maximal exercise (VO2max)
Metabolic markers: Lactate (mmol/L). Acid-base markers: pH; Partial pressure of carbon dioxide (pCO2) (mmHg); Bicarbonate (HCO3)(mmol/L). Oxygenation: Partial pressure of oxygen (pO2) (mmHg); Oxygen saturation (SaO2/SpO2) (%). Electrolyte and Ion Home: Potassium (mmol/L).
Peripheral oxygenation
Peripheral oxygenation (SpO2) (pulse oximeter).
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