Randomized,controlled trial of resistance training in breast cancer patients receiving adjuvant radiotherapy: results on cancer-related fatigue and quality of life

BackgroundExercise has been reported to decrease cancer-related fatigue and to increase quality of life (QoL) in various breast cancer (BC) populations. However, studies investigating exercise during radiotherapy or resistance training are scarce. We conducted a randomized, controlled trial (BEST study) to assess the efficacy of 12-week resistance training on fatigue beyond possible psychosocial effects of a group-based intervention.Patients and methodsOne hundred sixty patients with BC stage 0–III were randomly assigned to a 12-week progressive resistance training (2 times/week) or a 12-week relaxation control (RC, 2 times/week). Both interventions were group-based. The primary end point fatigue was assessed with a 20-item multidimensional questionnaire, QoL with EORTC questionnaires. Statistical analyses were based on analysis of covariance models for the individual changes from baseline to week 13.ResultsAdherence to the intervention program as well as the completion rate (97%) for the primary outcome variable fatigue was high. In intention-to-treat analyses for the N = 155 patients, significant between-group mean differences (MD) favoring the exercise group (EX) were observed for general fatigue (P = 0.044), especially for the subscale physical fatigue [MD = -0.8; 95% confidence interval -1.5 to -0.2, P = 0.013], but not for affective (P = 0.91) or cognitive fatigue (P = 0.65). For QoL, significantly larger improvements regarding the role function (P = 0.035) and pain (P = 0.040) were noted among exercisers compared with RCs. Future perspective improved significantly stronger in the RC group compared with the EX group (P = 0.047).ConclusionsThe 12-week resistance training program was a safe, feasible and efficacious strategy to improve cancer-related fatigue and components of QoL in BC patients during adjuvant radiotherapy. As exercise was compared with another group-based intervention, results indicate that resistance training effects on fatigue and QoL go beyond psychosocial benefits, and that the clinically relevant overall benefit of resistance exercise compared with usual care can be assumed to be higher.Trial registrationClinicalTrials.gov NCT01468766.     

Effectiveness of behavioral techniques and physical exercise on psychosocial functioning and health‐related quality of life in breast cancer patients and survivors—a meta‐analysis

Objective: To evaluate the effect of behavioral techniques and physical exercise on psychosocial functioning and health‐related quality of life (HRQoL) outcomes in breast cancer patients and survivors. Methods: A meta‐analysis was carried out to quantify the effects of behavioral and exercise interventions on fatigue, depression, anxiety, body‐image, stress and HRQoL. Summary effect sizes and standard errors were calculated. The presence of publication bias was explored and sensitivity analyses were performed to identify possible sources of heterogeneity. Results: In total, 56 studies were included. Statistically significant results were found for the effect of behavioral techniques on fatigue (ES ?0.158; 95% CI ?0.233 to ?0.082, p<0.001), depression (ES ?0.336; 95% CI ?0.482 to ?0.190, p<0.001), anxiety (ES ?0.346; 95% CI ?0.538 to ?0.154, p<0.001) and stress (ES ?0.159; 95% CI ?0.310 to ?0.009, p=0.038). For the effect of physical exercise interventions, statistically significant results were found on fatigue (ES ?0.315; 95% CI ?0.532 to ?0.098, p=0.004), depression (ES ?0.262; 95% CI ?0.476 to ?0.049, p=0.016), body‐image (ES 0.280; 95% CI 0.077 to 0.482, p=0.007) and HRQoL (ES 0.298; 95% CI 0.117 to 0.479, p=0.001). Conclusions: The results indicate that behavioral techniques and physical exercise improve psychosocial functioning and HRQoL in breast cancer patients and survivors. Future research is needed on the effect of physical exercise on stress and the effect of the combined intervention in breast cancer patients. Copyright © 2010 John Wiley & Sons, Ltd.     

Quality of life and physical performance and activity of breast cancer patients after adjuvant treatments

Objective: The study aimed at investigating the quality of life (QoL) and physical performance and activity, and their interrelations, in Finnish female breast cancer patients shortly after adjuvant treatments. Methods: A total of 537 disease‐free breast cancer survivors aged 35–68 years were surveyed at the beginning of a one year randomized exercise intervention. The patients were interviewed using EORTC QLQ‐C30, FACIT‐F, RBDI, and WHQ (for vasomotor symptoms) questionnaires. Physical performance was tested by a 2 km walking test. Physical activity was measured by a questionnaire and a prospective two‐week diary. Multivariate analysis was used to study the factors associated with QoL. Results: About 26% of the patients were rated as depressed, 20.4% as fatigued, and 82% suffered from menopausal symptoms. The global QoL was lower than in general population (69.4 vs 74.7, p<0.001). About 62% of the walking test results were below the population average. Fatigue (p<0.001), depression (p<0.001), body mass index (p = 0.016) and comorbidity (p = 0.032) impaired, and physical activity (p = 0.003) improved QoL. Physical activity level correlated positively to physical performance (r = ?0.274, p<0.0001). Conclusions: The QoL of the patients shortly after adjuvant treatments was impaired and the physical performance poor as compared to general population. In particular, depression and fatigue were related to impaired QoL. Physical performance and activity level were the only factors that correlated positively to QoL. Thus, physical exercise could be useful in rehabilitation of cancer survivors, especially for depressed and fatigued patients. Copyright © 2010 John Wiley & Sons, Ltd.     

Polymorphisms in three base excision repair genes and breast cancer risk in Thai women

Few randomized controlled trials have examined the effects of combined aerobic and resistance training in breast cancer survivors soon after completing adjuvant therapy. Breast cancer survivors (N = 58) within 2 years of completing adjuvant therapy were randomly assigned to an immediate exercise group (IEG; n = 29) or a delayed exercise group (DEG; n = 29). The IEG completed 12 weeks of supervised aerobic and resistance exercise, three times per week. The DEG completed the program during the next 12 weeks. Participants completed patient-rated outcomes at baseline, 6, 12, 18 and 24 weeks. The primary endpoint was overall quality of life (QoL) measured by the Functional Assessment of Cancer Therapy-Breast scale. Secondary endpoints were fatigue, social physique anxiety, and physical fitness. Follow-up data was obtained on 97% of participants and exercise adherence was 61.3%. Repeated measures analyses of variance revealed a significant group by time interaction for overall QoL (P < 0.001). Specifically, QoL increased in the IEG from baseline to 12 weeks by 20.8 points compared to a decrease in the DEG of 5.3 points (mean group difference = 26.1; 95% CI = 18.3–32.7; P < 0.001). From 12 to 24 weeks, QoL increased in the DEG by 29.5 points compared to an increase of 6.5 points in the IEG (mean group difference = 23.0; 95% CI = 16.3–29.1; P < 0.001). Similar results were obtained for the secondary endpoints. Combined aerobic and resistance exercise soon after the completion of breast cancer therapy produces large and rapid improvements in health-related outcomes.     

Effects of exercise on angiogenesis and apoptosis‐related molecules,quality of life,fatigue and depression in breast cancer patients

The aim of this study was to explore the effects of exercise on angiogenesis and apoptosis‐related molecules, quality of life, fatigue and depression in patients who completed breast cancer treatment. Sixty breast cancer patients were randomised into three groups, as supervised exercise group, home exercise group and education group. Angiogenesis and apoptosis‐related cytokine levels and quality of life (EORTC QOL‐C30: European Organisation for Research and Treatment of Cancer Quality of Life C30), fatigue (Brief Fatigue Inventory) and depression (BDI: Beck Depression Inventory) scores were compared before and after a 12‐week exercise programme. After the exercise programme, statistically significant decreases were found in interleukin‐8 and neutrophil activating protein‐78 levels in the home exercise group (P < 0.05). The education group showed a statistically significant increase in monocyte chemoattractant protein‐1 level (P < 0.05). Functional score and global health score of EORTC QOL‐C30 in the supervised exercise group and functional score of EORTC QOL‐C30 in the home exercise group increased significantly after exercise programme (P < 0.05). BDI score was significantly lower in the supervised exercise group after the exercise programme (P < 0.05). Changes in angiogenesis and apoptosis‐related molecules in the study groups suggest a possible effect of exercise on these parameters. Exercise programmes are safe and effective on quality of life and depression in breast cancer patients whose treatments are complete.     

Effects of a 4-Week Multimodal Rehabilitation Program on Quality of Life,Cardiopulmonary Function,and Fatigue in Breast Cancer Patients

Purpose

This study examines the effects of a rehabilitation program on quality of life (QoL), cardiopulmonary function, and fatigue in breast cancer patients. The program included aerobic exercises as well as stretching and strengthening exercises.

Methods

Breast cancer patients (n=62) who had completed chemotherapy were randomly assigned to an early exercise group (EEG; n=32) or a delayed exercise group (DEG; n=30). The EEG underwent 4 weeks of a multimodal rehabilitation program for 80 min/day, 5 times/wk for 4 weeks. The DEG completed the same program during the next 4 weeks. The European Organization for Research and Treatment of Cancer-Core Quality of Life Questionnaire (EORTC QLQ-C30), EORTC Breast Cancer-Specific Quality of Life Questionnaire (EORTC QLQ-BR23), predicted maximal volume of oxygen consumption (VO₂max), and fatigue severity scale (FSS) were used for assessment at baseline, and at 2, 4, 6, and 8 weeks.

Results

After 8 weeks, statistically significant differences were apparent in global health, physical, role, and emotional functions, and cancer-related symptoms such as fatigue and pain, nausea, and dyspnea on the EORTC QLQ-C30; cancer-related symptoms involving the arm and breast on the EORTC QLQ-BR23; the predicted VO₂max; muscular strength; and FSS (p<0.050), according to time, between the two groups.

Conclusion

The results of our study suggest that a supervised multimodal rehabilitation program may improve the physical symptoms, QoL, and fatigue in patients with breast cancer.     

Design of the Resistance and Endurance exercise After ChemoTherapy (REACT) study: A randomized controlled trial to evaluate the effectiveness and cost-effectiveness of exercise interventions after chemotherapy on physical fitness and fatigue

Background  

Preliminary studies suggest that physical exercise interventions can improve physical fitness, fatigue and quality of life in cancer patients after completion of chemotherapy. Additional research is needed to rigorously test the effects of exercise programmes among cancer patients and to determine optimal training intensity accordingly. The present paper presents the design of a randomized controlled trial evaluating the effectiveness and cost-effectiveness of a high intensity exercise programme compared to a low-to-moderate intensity exercise programme and a waiting list control group on physical fitness and fatigue as primary outcomes.     

Health‐related quality of life associated with different cancer treatments in Chinese breast cancer survivors in Taiwan

We assessed the quality of life (QoL) associated with patient's characteristics and different cancer treatments among Chinese breast cancer survivors in Taiwan. A cross‐sectional survey was conducted in 2017 where 193 patients with hormone receptor‐positive/human epidermal growth factor receptor‐2‐negative metastatic breast cancer were recruited. Three QoL questionnaires were administered: European Organization for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QLQ‐C30), its breast cancer supplementary measure (QLQ‐BR23) and EQ‐5D‐5L. Multiple linear regression was performed to assess the association between QoL and cancer treatments, with adjustment for patient's characteristics. The mean age of study participants was 55.52 years. Simple linear regression showed that cancer stage and receiving chemotherapy were significantly associated with QoL scores (p < 0.05). Significant adverse effects of chemotherapy on QoL were found among early‐stage cancer women (i.e., I or II), including poor cognitive and sexual functioning, and a higher symptom burden (i.e., dyspnoea, constipation, systematic therapy side effects). Multiple linear regression also revealed that receiving chemotherapy was significantly associated with poor QoL (e.g., lower functional health and higher symptom burden measured by the QLQ‐BR23), compared to none chemotherapy (p < 0.05). Receiving chemotherapy was associated with poor QoL, especially among early‐stage breast cancer patients.     

Effects of exercise dose and type during breast cancer chemotherapy on longer-term patient-reported outcomes and health-related fitness: A randomized controlled trial

The Combined Aerobic and Resistance Exercise (CARE) Trial compared different types and doses of exercise performed during breast cancer chemotherapy. Here, we report the longer-term follow-up of patient-reported outcomes, health-related fitness and exercise behavior at 6, 12 and 24 months postintervention. A multicenter trial in Canada randomized 301 breast cancer patients initiating chemotherapy to thrice weekly, supervised exercise consisting of a standard dose of 25–30 min of aerobic exercise (STAN; n = 96), a higher dose of 50–60 min of aerobic exercise (HIGH; n = 101) or a combined dose of 50–60 min of aerobic and resistance exercise (COMB; n = 104) performed for the duration of chemotherapy (median of 17 weeks). Primary outcomes were patient-reported outcomes including quality of life, cancer-related symptoms and psychosocial outcomes. Secondary outcomes were objective health-related fitness (assessed at 12 months only) and self-reported exercise behavior. A total of 269 (89.4%) participants completed patient-reported outcomes at all three follow-up time points and 263 (87.4%) completed the health-related fitness assessment at 12-month follow-up. COMB was significantly superior to (i) STAN for sleep quality at 6-month follow-up (p = 0.027); (ii) HIGH for upper body muscular endurance at 12-month follow-up (p = 0.020); and (iii) HIGH for meeting the resistance exercise guideline at 6-month follow-up (p = 0.006). Moreover, self-reported meeting of the combined exercise guideline during follow-up was significantly associated with better patient-reported outcomes and health-related fitness. Performing combined exercise during and after breast cancer chemotherapy may result in better longer-term patient-reported outcomes and health-related fitness compared to performing aerobic exercise alone.     

Feasibility and efficacy of a supervised exercise intervention in de-conditioned cancer survivors during the early survivorship phase: the PEACH trial

Purpose

This study aims to evaluate the feasibility and efficacy of an 8-week supervised exercise program in de-conditioned cancer survivors within 2–6 months of chemotherapy completion.

Methods

Participants were randomly assigned to an 8-week, twice-weekly, supervised aerobic exercise training regime (n?=?23) or a usual care group (n?=?20). Feasibility was assessed by recruitment rate, program adherence and participant feedback. The primary outcome was aerobic fitness assessed by the Modified Bruce fitness test at baseline (0 weeks), post-intervention (8 weeks) and at 3-month follow-up. Secondary outcomes included physical activity, waist circumference, fatigue and quality of life.

Results

The recruitment rate was 81 % and adherence to the supervised exercise was 78.3 %. Meaningful differences in aerobic fitness between the exercise and usual care groups at both the 8-week [mean 3.0 mL kg^?1 min^?1 (95 % CI ?1.1–7.0)] and 3-month follow-up [2.1 mL kg^?1 min^?1 (?2.3–6.6)] were found, although these differences did not achieve statistical significance (p values >0.14). Self-reported physical activity increased in the exercise group (EG) compared to the usual care group at both 8-week (p?=?0.01) and 3-month follow-up (p?=?0.03) and significant differences in favour of the EG were found for physical well-being at both the 8-week (p?=?0.03) and 3-month follow-up (p?=?0.04). Improvements in fatigue (p?=?0.01), total quality of life plus fatigue (p?=?0.04), and a composite physical functioning score (p?=?0.01) at the 3-month follow-up were also found.

Conclusion

The PEACH trial suggests that 8 weeks of supervised aerobic exercise training was feasible and may improve aerobic fitness, fatigue and quality of life in de-conditioned cancer survivors during the early survivorship phase.

Implications for Cancer Survivors

Exercise interventions commenced in the early survivorship phase appear safe, feasible and may lead to improvements in QOL and fatigue.     

Quality of life and sexual functioning after cervical cancer treatment: a long-term follow-up study

Objective: The purpose of the study was to investigate the long‐term treatment side effects on the quality of life (QoL) and sexual functioning of cervical cancer survivors undergoing different treatment regimens. Methods: QoL and sexual functioning were measured using the European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire, the Cervix Cancer Module, and the Sexual Activity Questionnaire. Results: One hundred twenty‐one cervical cancer survivors (63 Surgery, 38 Surgery/CT, and 20 Surgery/RT) participated. Patients in the Surgery/RT Group reported significantly worse QoL outcomes (lower scores on physical, role, cognitive, and social functioning) compared with patients in the Surgery Group or patients in the Surgery/CT Group. The level of symptoms such as nausea/vomiting, pain, appetite loss, frequent urination (p=0.019), leaking of urine (p=0.015), and the feeling of a tight vagina (p=0.018) was significantly higher in irradiated patients. Concerning sexual functioning, patients in the Surgery/RT Group reported a significantly lower sexual activity rate compared with women in the Surgery Group or women in the Surgery/CT group (p<0.05). However, there were no statistically significant differences concerning sexual pleasure and sexual discomfort among the three treatment groups (p>0.05). Conclusions: Cervical cancer survivors treated with adjuvant radiotherapy are more likely at risk for impaired QoL. Survivors treated with surgery or adjuvant chemotherapy return to a similar level of QoL as women without a history of cancer. Although the sexual activity rate is lower in irradiated patients their sexual pleasure is similar to patients after surgery and chemotherapy. Copyright © 2008 John Wiley & Sons, Ltd.     

Peer support for physical activity adoption among breast cancer survivors: Do the helped resemble the helpers?

Interventions offering peer mentoring programmes promoting moderate‐to‐vigorous physical activity (MVPA) have shown improvements in MVPA and well‐being from baseline; however, research is limited. The purpose of this study was to compare the physical activity (PA) levels and psychosocial well‐being of coaches and participants at baseline and following a 12‐week intervention. Breast cancer survivors (<5 years) were recruited and randomised into either exercise (Reach‐to‐Recovery (RTR) + PA) or control (RTR Control). Participants in both groups were individually assigned one of the 18 available coaches who delivered either the MVPA intervention or the control condition via telephone. PA (7‐Day PA Recall), psychosocial well‐being, fatigue and mood were assessed at baseline and intervention completion. Seventy‐six breast cancer survivors (average age = 55.62 (±9.55)) were randomised. At baseline, all participants showed significantly lower MVPA (p = .001) and well‐being (p < .05) as compared to coaches. However, post‐intervention showed significant improvement in PA and well‐being in RTR + PA, so that they were no longer significantly different from the coaches. Post‐intervention, MVPA (p < .01), quality of life (p < .05) and fatigue (p < .05) remained significantly lower in RTR Controls compared to coaches. Future interventions should consider the behavioural patterns not only of the participants, but also of those who deliver the interventions.     

Efficacy of a global supportive skin care programme with hydrotherapy after non‐metastatic breast cancer treatment: A randomised,controlled study

This study investigated the efficacy of post‐treatment hydrotherapy as supportive care for management of persistent/long‐lasting dermatologic adverse events (dAEs) induced in breast cancer survivors by adjuvant therapy, and its impact on quality of life (QoL). Patients in complete remission after standardised (neo)adjuvant chemotherapy, surgery and radiotherapy combination treatment for infiltrating HR+/HER2‐breast carcinoma were enrolled in this randomised, multicentre controlled study 1–5 weeks after completing radiotherapy. The control group (CG, n = 33) received best supportive care and the treatment group (HG, n = 35) received 3‐weeks of specific hydrotherapy. The primary criterion was change in QoL (QLQ‐BR23) after hydrotherapy. Clinical grading of dAEs, cancer‐related QoL (QLQ‐C30), dermatologic QoL (DLQI) and general psychological well‐being (PGWBI) were assessed. Significant dAEs were found at inclusion in both groups (n = 261). Most items showed significantly greater improvement in the HG versus CG group: QLQ‐BR23 (breast [p = .0001] and arm symptoms [p = .0015], systemic therapy side effects [p = .0044], body image [p = .0139]), some dAE grading, DLQI (p = .0002) and PGWBI (p = .0028). Xerosis (88% of patients at inclusion) completely healed in all HG patients. Specific hydrotherapy is an effective supportive care for highly prevalent and long‐lasting dAEs occurring after early breast cancer treatment, including chemotherapy, and leads to improved QoL and dermatologic toxicities.     

The ONE‐MIND Study: Rationale and protocol for assessing the effects of ONlinE MINDfulness‐based cancer recovery for the prevention of fatigue and other common side effects during chemotherapy

Cancer patients often experience poor quality of life (QoL) during chemotherapy (CT) treatments due to side effects including fatigue, insomnia, pain and nausea/vomiting. Mindfulness‐based cancer recovery (MBCR) is an evidence‐based intervention for treating such symptoms, but has not been investigated as an adjunctive treatment during CT. This study aims to determine the efficacy of an online group MBCR programme delivered during CT in 12 real‐time interactive weekly sessions for managing fatigue (primary outcome). Secondary outcomes include sleep disturbance, pain, nausea/vomiting, mood, stress and QoL. Exploratory outcomes include cognitive function, white blood cell counts and return to work. The study is a two‐armed randomised controlled waitlist trial with 2:1 allocation to treatment (online group MBCR during CT) or control (waitlist usual care; online MBCR following CT completion) with a target sample size of N = 178. Participants are breast or colorectal cancer patients undergoing common CT regimens in Calgary, Canada. Online assessments using validated self‐reported instruments will take place at baseline, post‐MBCR, post‐CT and 12 months’ post‐baseline. If online MBCR delivered during CT significantly reduces fatigue in cancer patients’ post‐CT and also impacts secondary symptoms, this would provide evidence for including mindfulness training as an adjunctive symptom management therapy during CT.     

Psychosocial interventions as part of breast cancer rehabilitation programs? Results from a systematic review

Objective: This systematic review aimed to determine the effectiveness of psychoeducation, cognitive behavioural therapy (CBT) and social support interventions used in the rehabilitation of breast cancer (BC) patients. Methods: We conducted a systematic literature search to identify randomised controlled trials of female BC patients who underwent different psychosocial interventions during or after primary cancer treatment. The methodological quality of all studies was independently assessed by two reviewers. Studies with low quality, less than 20 participants in each group, patients with metastatic cancer, data not presented separately for BC and studies that included other cancer types were excluded. Results: Among 9617 identified studies, only 18 RCTs published between 1999 and 2008, including 3272 patients were finally included in this systematic evaluation. Outcome measures were categorised into quality of life (QoL), fatigue, mood, health behaviour and social function. Six trials examined psychoeducation had inconsistent results, both during and after the primary treatment. Seven trials examined the effect of CBT, four of which given after primary treatment (range 6–12 weeks) demonstrated improvements in QoL; the other three CBT studies given during primary treatment (range 9–20 weeks) had inconsistencies. Five studies addressed social support and showed no conclusive impacts of this intervention. Conclusions: Limited documentation exists on the efficacy of psychosocial rehabilitation interventions among BC patients. However, we found that patients might have QoL benefits from CBT given after primary BC treatment. More documentation is needed regarding the effects of CBT during primary treatment and the effects of psychoeducation and social support. Copyright © 2010 John Wiley & Sons, Ltd.     

The effect of cognitive behavioural therapy integrated with activity pacing on cancer-related fatigue,depression and quality of life among patients with breast cancer undergoing chemotherapy in Ethiopia: A randomised clinical trial

Fatigue is a common symptom experienced by 80% of individuals who receive chemotherapy and is one of the major factors that affect quality of life (QoL) of patients with breast cancer. Our study aimed to assess the effect of cognitive behavioural therapy integrated with activity pacing (CBT-AP) on cancer-related fatigue among patients with breast cancer undergoing chemotherapy. A parallel-group, randomised controlled trial was conducted. Severely fatigued patients were randomly assigned to the CBT-AP or usual care (UC) groups using a computer-generated random sequence. The new intervention was designed for seven sessions: three 2-hour face-to-face and four 30-minute telephone sessions. The primary outcome (fatigue severity) and the secondary outcomes (depression and QoL) were assessed at the end of the intervention and after 3 months. The data were analysed by repeated measures analyses of covariance (RM-ANCOVA). CBT-AP had a significant time effect (P < .001, ηp² = 0.233) in reducing fatigue from baseline (adjusted mean = 7.48) to the end of the intervention (adjusted mean = 6.37) and the 3-month follow-up (adjusted mean = 6.54). Compared to the UC group, the CBT-AP group had lower fatigue and depression scores, and higher global health status scores. The group × time interaction revealed a significant reduction in fatigue and depression in the CBT-AP group compared to the UC group. Therefore, CBT-AP appears to be effective in reducing fatigue and depression and improving QoL in patients with breast cancer undergoing chemotherapy. It is highly recommended to integrate a CBT-AP intervention in routine cancer care.     

Effects and moderators of psychosocial interventions on quality of life,and emotional and social function in patients with cancer: An individual patient data meta‐analysis of 22 RCTs

Objective

This individual patient data (IPD) meta‐analysis aimed to evaluate the effects of psychosocial interventions (PSI) on quality of life (QoL), emotional function (EF), and social function (SF) in patients with cancer, and to study moderator effects of demographic, clinical, personal, and intervention‐related characteristics.

Methods

Relevant studies were identified via literature searches in 4 databases. We pooled IPD from 22 (n = 4217) of 61 eligible randomized controlled trials. Linear mixed‐effect model analyses were used to study intervention effects on the post‐intervention values of QoL, EF, and SF (z‐scores), adjusting for baseline values, age, and cancer type. We studied moderator effects by testing interactions with the intervention for demographic, clinical, personal, and intervention‐related characteristics, and conducted subsequent stratified analyses for significant moderator variables.Results: PSI significantly improved QoL (β = 0.14,95%CI = 0.06;0.21), EF (β = 0.13,95%CI = 0.05;0.20), and SF (β = 0.10,95%CI = 0.03;0.18). Significant differences in effects of different types of PSI were found, with largest effects of psychotherapy. The effects of coping skills training were moderated by age, treatment type, and targeted interventions. Effects of psychotherapy on EF may be moderated by cancer type, but these analyses were based on 2 randomized controlled trials with small sample sizes of some cancer types.

Conclusions

PSI significantly improved QoL, EF, and SF, with small overall effects. However, the effects differed by several demographic, clinical, personal, and intervention‐related characteristics. Our study highlights the beneficial effects of coping skills training in patients treated with chemotherapy, the importance of targeted interventions, and the need of developing interventions tailored to the specific needs of elderly patients.