Prevalence and predictors for fertility-related distress among 1010 young adults 1.5 years following cancer diagnosis - results from the population-based Fex-Can Cohort study

BACKGROUND

Cancer treatment during reproductive ages may negatively impact fertility and there is a need of firm knowledge about the prevalence and predictors of fertility-related distress. The aim was to examine fertility-related distress in a population-based sample of young women and men recently treated for cancer and to identify predictors for this outcome.

MATERIAL AND METHODS

This nationwide cohort study included 1010 individuals (694 women and 316 men), mean age 34.5 ± 4.9 and 32.1 ± 5.5, respectively, diagnosed with breast, cervical, ovarian, testicular cancers, brain tumors or lymphoma at ages 18-39 in Sweden. Participants completed a survey 1.5-year post-diagnosis to assess fertility-related distress (RCAC), emotional distress (HADS) and self-efficacy, as well as sociodemographic and clinical factors and fertility preservation. Logistic regression was used to examine associations between explanatory factors and high fertility-related distress (RCAC subscale mean >4).

RESULTS

Many participants (69% of women and 47% of men) had previous children and about half reported a wish for future children. High fertility-related distress was more prevalent among women (54%) than men (27%), and women were more likely than men to report distress concerning all but one RCAC dimension after adjustment for sociodemographic factors. Use of fertility preservation was unevenly distributed (15% of women and 71% of men) and was not associated with decreased fertility-related distress. In multivariable logistic regression models, a wish for future children, being single, not having previous children, symptoms of anxiety and low self-efficacy regarding one's ability to handle threats of infertility were associated with high fertility-related distress.

CONCLUSION

This nationwide study found a high prevalence of fertility-related distress in young women and men recently treated for cancer and identified sociodemographic and psychological predictors. Fertility preservation was not found to act as a buffer against fertility-related distress, indicating the continuous need to identify strategies to alleviate fertility distress following cancer.

[Regional variation in usage of TTF (Optune)]

The standard treatment of glioblastoma, an aggressive brain tumour, includes radiotherapy combined with temozolomide. Based on a randomised trial, showing five months increased survival, TTF has been introduced in the management of patients with good performance status. Data from the Swedish national quality registry for CNS tumours have been analysed for TTF usage. The results demonstrate that 65 percent of the patients accepted treatment with TTF. More than half of the treated patients interrupted treatment due to low compliance or their own wish. Median treatment time was 164 days, with a range from 0 to 774 days. There was a large variation between different regions in how many patients were offered TTF treatment. A non-significant trend to better survival was seen for the group of TTF-treated patients compared to individually matched controls. In summary, TTF is a new treatment for glioblastoma, with potential to prolong survival also in real world patients. Today, the treatment is not offered equally to all patients, despite national guidelines.

Do young adults with cancer receive information about treatment-related impact on sex life? Results from a population-based study

BACKGROUND

Sexual dysfunction is common following a cancer diagnosis in young adulthood (18-39 years) and problems related to sex life are ranked among the core concerns in this age group. Yet, few studies have investigated to what extent adults younger than 40, receive information from healthcare providers about the potential impact of cancer and its treatment on their sex life.

METHODS

A population-based cross-sectional survey study was conducted with 1010 young adults 1.5 years after being diagnosed with cancer (response rate 67%). Patients with breast, cervical, ovarian and testicular cancer, lymphoma, and brain tumors were identified in national quality registries. Sociodemographic and clinical factors associated with receiving information were examined using multivariable binary logistic regression.

RESULTS

Men to a higher extent than women reported having received information about potential cancer-related impact on their sex life (68% vs. 54%, p < 0.001). Receipt of information varied across diagnoses; in separate regression models, using lymphoma as reference, both women and men with brain tumors were less likely to receive information (women: OR 0.10, CI = 0.03-0.30; men: OR 0.37, CI = 0.16-0.85). More intensive treatment was associated with higher odds of receiving information in both women (OR 1.89; CI = 1.28-2.79) and men (OR 2.08; CI = 1.09-3.94). None of the sociodemographic factors were associated with receipt of information.

CONCLUSIONS

To improve sexual health communication to young adults with cancer, we recommend diagnosis-specific routines that clarify when in the disease trajectory to discuss these issues with patients and what to address in these conversations.

European Association of Neuro-Oncology (EANO) guidelines for treatment of primary central nervous system lymphoma (PCNSL)

The management of primary central nervous system (PCNSL) is one of the most controversial topics in neuro-oncology because of the complexity of the disease and the limited number of controlled studies available. In 2021, given recent advances and the publication of practice-changing randomized trials, the European Association of Neuro-Oncology (EANO) created a multidisciplinary task force to update the previously published evidence-based guidelines for immunocompetent adult patients with PCNSL and added a section on immunosuppressed patients. The guideline provides consensus considerations and recommendations for the treatment of PCNSL, including intraocular manifestations and specific management of the elderly. The main changes from the previous guideline include strengthened evidence for the consolidation with ASCT in first-line treatment, prospectively assessed chemotherapy combinations for both young and elderly patients, clarification of the role of rituximab even though the data remain inconclusive, of the role of new agents, and the incorporation of immunosuppressed patients and primary ocular lymphoma. The guideline should aid the clinicians in everyday practice and decision making and serve as a basis for future research in the field.

Prevalence and risk factors for sexual dysfunction in young women following a cancer diagnosis - a population-based study

BACKGROUND

Self-reported sex problems among women diagnosed with reproductive and nonreproductive cancers before the age of 40 are not fully understood. This study aimed to determine sexual dysfunction in young women following a cancer diagnosis in relation to women of the general population. Furthermore, to identify factors associated with sexual dysfunction in women diagnosed with cancer.

MATERIALS AND METHODS

A population-based cross-sectional study with 694 young women was conducted 1.5 years after being diagnosed with cancer (response rate 72%). Potential participants were identified in national quality registries covering breast and gynecological cancer, lymphoma and brain tumors. The women with cancer were compared to a group of women drawn from the general population (N = 493). Sexual activity and function were assessed with the PROMIS® SexFS. Logistic regression was used to assess differences between women with cancer and the comparison group, and to identify factors associated with sexual dysfunction.

RESULTS

The majority of the women with cancer (83%) as well as the women from the comparison group (87%) reported having had sex the last month (partner sex and/or masturbation). More than 60% of the women with cancer (all diagnoses) reported sexual dysfunction in at least one of the measured domains. The women with cancer reported statistically significantly more problems than women of the comparison group across domains such as decreased interest in having sex, and vaginal and vulvar discomfort. Women with gynecological or breast cancer and those receiving more intense treatment were at particular high risk of sexual dysfunction (≥2 domains). Concurrent emotional distress and body image disturbance were associated with more dysfunction.

CONCLUSION

The results underscore the need to routinely assess sexual health in clinical care and follow-up. Based on the results, development of interventions to support women to cope with cancer-related sexual dysfunction is recommended.

Initial cognitive impairment predicts shorter survival of patients with glioblastoma

OBJECTIVES

Seizures as presenting symptom of glioblastoma (GBM) are known to predict prolonged survival, whereas the clinical impact of other initial symptoms is less known. Our main objective was to evaluate the influence of different presenting symptoms on survival in a clinical setting. We also assessed lead times, tumour size and localization.

METHODS

Medical records of 189 GBM patients were reviewed regarding the first medical appointment, presenting symptom/s, date of diagnostic radiology and survival. Tumour size, localization and treatment data were retrieved. Overall survival was calculated using Kaplan-Meier and Mann-Whitney U test. Cox regression was used for risk estimation.

RESULTS

Cognitive impairment as the initial symptom was often misinterpreted in primary health care leading to a delayed diagnosis. Initial global symptoms (66% of all patients) were associated with reduced survival compared to no global symptoms (median 8.4 months vs. 12.6 months). Those with the most common cognitive dysfunctions: change of behaviour, memory impairment and/or disorientation had a reduced median survival to 6.4 months. In contrast, seizures (32%) were associated with longer survival (median 11.2 months vs. 8.3 months). Global symptoms were associated with larger tumours than seizures, but tumour size had no linear association with survival. The setting of the first medical appointment was evenly distributed between primary health care and emergency units.

CONCLUSION

Patients with GBM presenting with cognitive symptoms are challenging to identify, have larger tumours and reduced survival. In contrast, epileptic seizures as the first symptom are associated with longer survival and smaller tumours.

Efficacy of a novel device for cryoprevention of oral mucositis: a randomized, blinded, multicenter, parallel group, phase 3 trial

Cryoprevention (CP) using ice (IC) is an effective strategy to prevent chemotherapy-induced oral mucositis (OM). However, the use of IC may cause adverse reactions and requires water of safe quality to minimize risk of serious infections. This randomized, blinded, parallel group, phase 3 trial was conducted in five Scandinavian centers. Eligible patients were diagnosed with multiple myeloma or lymphoma, scheduled to receive conditioning with high-dose chemotherapy prior to autologous hematopoietic stem cell transplantation (ASCT). Patients were assigned to cooling with IC or a novel intraoral cooling device (ICD). The primary outcome was the highest OM score during the study period, expressed as peak value on the Oral Mucositis Assessment Scale (OMAS–total). When the entire study population (n = 172) was analyzed for peak OMAS–total, the two cooling methods were equally effective. However, when the lymphoma group was analyzed separately, the ICD significantly reduced the peak OMAS–total score to a greater extent compared to IC (x̄ ± SD; 1.77 ± 1.59 vs. 3.08 ± 1.50; p = 0.047). Combined with existing evidence, the results of the present trial confirm that CP is an effective method to prevent OM. ClinicalTrials.gov. NCT03203733.

Fertility-related information received by young women and men with cancer - a population-based survey

BACKGROUND

Infertility is a well-known sequela of cancer treatment. Despite guidelines recommending early discussions about risk of fertility impairment and fertility preservation options, not all patients of reproductive age receive such information.

AIMS

This study aimed to investigate young adult cancer patients' receipt of fertility-related information and use of fertility preservation, and to identify sociodemographic and clinical factors associated with receipt of information.

MATERIALS AND METHODS

A population-based cross-sectional survey study was conducted with 1010 young adults with cancer in Sweden (response rate 67%). The inclusion criteria were: a previous diagnosis of breast cancer, cervical cancer, ovarian cancer, brain tumor, lymphoma or testicular cancer between 2016 and 2017, at an age between 18 and 39 years. Data were analyzed using logistic regression models.

RESULTS

A majority of men (81%) and women (78%) reported having received information about the potential impact of cancer/treatment on their fertility. A higher percentage of men than women reported being informed about fertility preservation (84% men vs. 40% women, p < .001) and using gamete or gonadal cryopreservation (71% men vs. 15% women, p < .001). Patients with brain tumors and patients without a pretreatment desire for children were less likely to report being informed about potential impact on their fertility and about fertility preservation. In addition, being born outside Sweden was negatively associated with reported receipt of information about impact of cancer treatment on fertility. Among women, older age (>35 years), non-heterosexuality and being a parent were additional factors negatively associated with reported receipt of information about fertility preservation.

CONCLUSION

There is room for improvement in the equal provision of information about fertility issues to young adult cancer patients.

Tumor Treating Fields for Glioblastoma Therapy During the COVID-19 Pandemic

Background

The COVID-19 pandemic has placed excessive strain on health care systems and is especially evident in treatment decision-making for cancer patients. Glioblastoma (GBM) patients are among the most vulnerable due to increased incidence in the elderly and the short survival time. A virtual meeting was convened on May 9, 2020 with a panel of neuro-oncology experts with experience using Tumor Treating Fields (TTFields). The objective was to assess the risk-to-benefit ratio and provide guidance for using TTFields in GBM during the COVID-19 pandemic.

Panel Discussion

Topics discussed included support and delivery of TTFields during the COVID-19 pandemic, concomitant use of TTFields with chemotherapy, and any potential impact of TTFields on the immune system in an intrinsically immunosuppressed GBM population. Special consideration was given to TTFields' use in elderly patients and in combination with radiotherapy regimens. Finally, the panel discussed the need to better capture data on COVID-19positive brain tumor patients to analyze longitudinal outcomes and changes in treatment decision-making during the pandemic.

Expert Opinion

TTFields is a portable home-use device which can be managed via telemedicine and safely used in GBM patients during the COVID-19 pandemic. TTFields has no known immunosuppressive effects which is important during a crisis where other treatment methods might be limited, especially for elderly patients with multiple co-morbidities. It is too early to estimate the full impact of COVID-19 on the global healthcare system and on patient outcomes and the panel strongly recommended collaboration with existing cancer COVID-19 registries to follow CNS tumor patients.

Impact of meningioma surgery on use of antiepileptic, antidepressant, and sedative drugs: A Swedish nationwide matched cohort study

Background

Meningioma is the most common primary intracranial tumor and surgery is the main treatment modality. As death from lack of tumor control is rare, other outcome measures like anxiety, depression and post‐operative epilepsy are becoming increasingly relevant. In this nationwide registry‐based study we aimed to describe the use of antiepileptic drugs (AED), antidepressants and sedatives before and after surgical treatment of an intracranial meningioma compared to a control population, and to provide predictors for continued use of each drug‐group two years after surgery.

Methods

All adult patients with histopathologically verified intracranial meningiomas were identified in the Swedish Brain Tumor Registry and their data were linked to relevant national registries after assigning five matched controls to each patient. We analyzed the prescription patterns of antiepileptic drugs (AED), antidepressants and sedative drugs in the two years before and the two years following surgery.

Results

For the 2070 patients and 10312 controls identified the use of AED, antidepressants and sedatives was comparable two years before surgery. AED use at time of surgery was higher for patients than for controls (22.2% vs. 1.9%, p < 0.01), as was antidepressant use (12.9% vs. 9.4%, p < 0.01). Both AED and antidepressant use remained elevated after surgery, with patients having a higher AED use (19.7% vs. 2.3%, p < 0.01) and antidepressant use (14.8% vs. 10.6%, p < 0.01) at 2 years post‐surgery. Use of sedatives peaked for patients at the time of surgery (14.4% vs. 6.1%, p < 0.01) and remained elevated at two years after surgery with 9.9% versus 6.6% (p < 0.01). For all the studied drugs, previous drug use was the strongest predictor for use 2 years after surgery.

Conclusion

This nationwide study shows that increased use of AED, antidepressants and sedatives in patients with meningioma started perioperatively, and remained elevated two years following surgery.

Psychotropic and anti-epileptic drug use, before and after surgery, among patients with low-grade glioma: a nationwide matched cohort study

Background

Low-grade glioma (LGG) is a relatively rare type of brain tumour. The use of antidepressant, sedative and anti-epileptic drugs can reflect the burden of the disease. While epilepsy is well-described in patients with LGG, less is known about depression and anxiety.

Methods

We used nationwide registers to study the use (dispense) of antidepressants, sedatives, and anti-epileptic drugs (AEDs) before and after histopathological LGG diagnosis (WHO grade II). A total of 485 adult patients with a first-time diagnosis and a matched control cohort (n = 2412) were included. Patterns of use were analysed from one year prior to until one year following index date (date of surgery). Logistic regression analysis identified predictors for postoperative use.

Results

At one year before index date, patients were dispensed AEDs 4 times more than controls, while antidepressants and sedatives were similar. Sedatives and AED peaked shortly after index date at 25 and 69%, respectively. AEDs then stabilized while sedatives decreased rapidly. For antidepressants, a delayed increase was seen after index date, stabilizing at 12%. At one year after index date, the use of antidepressants, sedatives, and AEDs among patients was 2, 3, and 26 times higher, respectively, compared to controls. Predictor for use of AEDs and sedatives at one year following index was previous use and/or a related diagnosis. Female sex and later index year were additional predictors for antidepressants.

Conclusions

Use of antidepressants, sedatives and AEDs is elevated following diagnosis of LGG. Antidepressants were more commonly dispensed to female patients and in recent years.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12885-021-07939-w.

COVD-17. TUMOR TREATING FIELDS FOR GLIOBLASTOMA THERAPY DURING THE COVID-19 PANDEMIC: EXPERT CONSENSUS ON USE AND EXPERIENCE

BACKGROUND

The COVID-19 pandemic has placed excessive strain on health care systems and this is especially evident in treatment decision-making for cancer patients. Glioblastoma (GBM) patients are among the most vulnerable due to increased incidence in the elderly (median age 64 years, peak between 75–84 years) and the short survival time. A virtual meeting was convened on May 9, 2020 with a panel of international neuro-oncology experts with hands-on experience using Tumor Treating Fields (TTFields). The objective was to assess the risk-to-benefit and to provide guidance for using TTFields in GBM during the COVID-19 pandemic.

PANEL DISCUSSION

Topics discussed included support and delivery of TTFields during the COVID-19 pandemic, concomitant use of TTFields with chemotherapy, and any potential impact of TTFields on the immune system in an intrinsically immunosuppressed GBM population. Special consideration was given to TTFields’ use in elderly patients and in combination with radiotherapy regimens (standard versus hypo-fractionated). Finally, we discussed the need to better capture COVID-19 positive brain tumor patients to analyze longitudinal outcomes and subtle changes in treatment decision-making during the pandemic.

EXPERT CONSENSUS

TTFields is a portable home-use device which can be managed via telemedicine and safely used in GBM patients during the COVID-19 pandemic. TTFields has no known immunosuppressive effects and is a reliable treatment modality with a relatively favorable side-effect profile. This is important during a crisis where other treatment methods might be limited, especially for elderly patients and patients with multiple co-morbidities. It is too early to estimate the full impact of COVID-19 on the global healthcare system and on patient outcomes and strongly recommended the need to collaborate with existing cancer COVID-19 registries (i.e. CCC19, ESMO-CoCARE, etc.) to follow CNS tumor patients. These efforts would have implications in assessing lessons-learned from this crisis and future guideline development.

Efficacy of mistletoe extract as a complement to standard treatment in advanced pancreatic cancer: study protocol for a multicentre, parallel group, double-blind, randomised, placebo-controlled clinical trial (MISTRAL)

Background

Most pancreatic cancer patients present with advanced stage at diagnosis with extremely short expected survival and few treatment options. A multimodal palliative approach is necessary for symptom relief and optimisation of health-related quality of life. In a recent open-label trial of mistletoe extract for advanced pancreatic cancer patients not eligible for chemotherapy, promising results on improved overall survival and better health-related quality of life were reported.

The objective of the present study is to assess the value of mistletoe extract as a complement to standard treatment (palliative chemotherapy or best supportive care) in advanced pancreatic cancer patients with regard to overall survival and health-related quality of life.

Methods

The trial is prospective, randomised, double-blind, multicentre, parallel group and placebo-controlled. In total, 290 participants are randomly assigned to placebo or mistletoe extract given subcutaneously in increasing dosage from 0.01 to 20 mg three times per week for 9 months. Stratification is performed for site and palliative chemotherapy. Main inclusion criteria are advanced pancreatic cancer and Eastern Cooperative Oncology Group performance status 0 to 2; main exclusion criteria are life expectancy less than 4 weeks and neuroendocrine tumour of the pancreas. Two ancillary studies on sub-sets of participants are nested in the trial: a biomarker study collecting blood samples and a cross-sectional qualitative study with semi-structured face-to-face interviews.

Discussion

To our knowledge, this is the first placebo-controlled randomised trial assessing the impact of mistletoe extract as a complement to standard treatment on overall survival and health-related quality of life in patients with advanced pancreatic cancer. The presented trial with its two nested ancillary studies exploring biomarkers and patient experiences is expected to give new insights into the treatment of advanced pancreatic cancer.

Trial registration

EU Clinical Trial Register, EudraCT Number 2014-004552-64. Registered on 19 January 2016.

ClinicalTrials.gov NCT02948309. Registered on 28 October 2016.

Determining medical decision-making capacity in brain tumor patients: why and how?

Background

Brain tumor patients are at high risk of impaired medical decision-making capacity (MDC), which can be ethically challenging because it limits their ability to give informed consent to medical treatments or participation in research. The European Association of Neuro-Oncology Palliative Care Multidisciplinary Task Force performed a systematic review to identify relevant evidence with respect to MDC that could be used to give recommendations on how to cope with reduced MDC in brain tumor patients.

Methods

A literature search in several electronic databases was conducted up to September 2019, including studies with brain tumor and other neurological patients. Information related to the following topics was extracted: tools to measure MDC, consent to treatment or research, predictive patient- and treatment-related factors, surrogate decision making, and interventions to improve MDC.

Results

A total of 138 articles were deemed eligible. Several structured capacity-assessment instruments are available to aid clinical decision making. These instruments revealed a high incidence of impaired MDC both in brain tumors and other neurological diseases for treatment- and research-related decisions. Incapacity appeared to be mostly determined by the level of cognitive impairment. Surrogate decision making should be considered in case a patient lacks capacity, ensuring that the patient's "best interests" and wishes are guaranteed. Several methods are available that may help to enhance patients' consent capacity.

Conclusions

Clinical recommendations on how to detect and manage reduced MDC in brain tumor patients were formulated, reflecting among others the timing of MDC assessments, methods to enhance patients' consent capacity, and alternative procedures, including surrogate consent.

Return to work following diagnosis of low-grade glioma: A nationwide matched cohort study

Objective

Return-to-work (RTW) following diagnosis of infiltrative low-grade gliomas is unknown.

Methods

Swedish patients with histopathologic verified WHO grade II diffuse glioma diagnosed between 2005 and 2015 were included. Data were acquired from several Swedish registries. A total of 381 patients aged 18–60 were eligible. A matched control population (n = 1,900) was acquired. Individual data on sick leave, compensations, comorbidity, and treatments assigned were assessed. Predictors were explored using multivariable logistic regression.

Results

One year before surgery/index date, 88% of cases were working, compared to 91% of controls. The proportion of controls working remained constant, while patients had a rapid increase in sick leave approximately 6 months prior to surgery. After 1 and 2 years, respectively, 52% and 63% of the patients were working. Predictors for no RTW after 1 year were previous sick leave (odds ratio [OR] 0.92, 95% confidence interval [CI] 0.88–0.96, p < 0.001), older age (OR 0.96, 95% CI 0.94–0.99, p = 0.005), and lower functional level (OR 0.64 95% CI, 0.45–0.91 p = 0.01). Patients receiving adjuvant treatment were less likely to RTW within the first year. At 2 years, biopsy (as opposed to resection), female sex, and comorbidity were also unfavorable, while age and adjuvant treatment were no longer significant.

Conclusions

Approximately half of patients RTW within the first year. Lower functional status, previous sick leave, older age, and adjuvant treatment were risk factors for no RTW at 1 year after surgery. Female sex, comorbidity, and biopsy only were also unfavorable for RTW at 2 years.

LRIG1 gene copy number analysis by ddPCR and correlations to clinical factors in breast cancer

BACKGROUND

Leucine-rich repeats and immunoglobulin-like domains 1 (LRIG1) copy number alterations and unbalanced gene recombination events have been reported to occur in breast cancer. Importantly, LRIG1 loss was recently shown to predict early and late relapse in stage I-II breast cancer.

METHODS

We developed droplet digital PCR (ddPCR) assays for the determination of relative LRIG1 copy numbers and used these assays to analyze LRIG1 in twelve healthy individuals, 34 breast tumor samples previously analyzed by fluorescence in situ hybridization (FISH), and 423 breast tumor cytosols.

RESULTS

Four of the LRIG1/reference gene assays were found to be precise and robust, showing copy number ratios close to 1 (mean, 0.984; standard deviation, +/- 0.031) among the healthy control population. The correlation between the ddPCR assays and previous FISH results was low, possibly because of the different normalization strategies used. One in 34 breast tumors (2.9%) showed an unbalanced LRIG1 recombination event. LRIG1 copy number ratios were associated with the breast cancer subtype, steroid receptor status, ERBB2 status, tumor grade, and nodal status. Both LRIG1 loss and gain were associated with unfavorable metastasis-free survival; however, they did not remain significant prognostic factors after adjustment for common risk factors in the Cox regression analysis. Furthermore, LRIG1 loss was not significantly associated with survival in stage I and II cases.

CONCLUSIONS

Although LRIG1 gene aberrations may be important determinants of breast cancer biology, and prognostic markers, the results of this study do not verify an important role for LRIG1 copy number analyses in predicting the risk of relapse in early-stage breast cancer.

Clinical outcomes and economic burden for bladder cancer patients: An analysis from a Swedish cancer registry

5026

Background: To investigate the clinical and economic disease burden for patients (pts) with non-muscle invasive bladder cancer (NMIBC), muscle invasive bladder cancer (MIBC), and metastatic urothelial carcinoma (mUC) using a Swedish bladder cancer registry. Methods: Pts diagnosed with bladder cancer in the Stockholm Gotland region between 2005-2013 were included and followed until May 31, 2015 or until death. MIBC was classified if a T, N, M at diagnosis was T2, T3, T4, N1, N2, N3, or M1, otherwise pts were classified as NMIBC. All diagnostic and therapeutic interventions were captured and differentiated. Inpatient and outpatient healthcare resource utilization (days) and associated costs (US $) were also analyzed. Results: 3587 bladder cancer pts were identified (NMIBC-2728; MIBC-859) with a median observation time of 49.7 (Q1-Q3: 27.8-78.7) versus 17.2 (Q1-Q3: 6.5-39.3) months. 5-year survival for patients with NMIBC at diagnosis was 71.3% (95% CI; 69.5-73.3) and 26.4% (95%CI; 23.4-29.8) for MIBC. By year 1, survival for MIBC-T2, T3, and T4 was 66%, 41.7%, and 28.4%, respectively. Progression from NMIBC to MIBC was estimated in 19.4% (528/2728) of pts. In year 1, 84% (2,275/2,728) of TURBT procedures were performed on NMIBC pts. Over the next 2-10 years of follow-up, 11,035 repeat TURBT procedures were undertaken in this cohort. In the 859 MIBC pts, 607 TURBT procedures and 333 radical cystectomies occurred in year 1. In the same cohort, 28.3% (243/859), 15.5% (78/505), and 8.6% (29/338) received systemic chemotherapy in years 1, 2, and 3, respectively. Total health resource utilization (HRU) cost for the NMIBC and MIBC cohorts is provided in Table. Median HRU cost per person-year was estimated at $30,470 for MIBC versus $9,228 for NMIBC in year 1. For MIBC-T2, T3, and T4, median cost per person-year was $30,154, $33,917, and $38,959 in year 1, respectively. Conclusions: This retrospective analysis accomplished its primary purpose to provide a real-world understanding for the clinical and economic impact of bladder cancer over a 10-year period when treatment interventions were relatively consistent. Total HRU Costs for Patients with NMIBC and MIBC per Follow-up Year (Years 1 to 5). [Table: see text]

Short-term outcome following surgery for rare brain tumor entities in adults: a Swedish nation-wide registry-based study and comparison with SEER database

Objective

To investigate outcomes after surgery for rare brain tumors using the Swedish Brain Tumor Registry (SBTR).

Methods

This is a nationwide study of patient in the SBTR, validated in the Surveillance, Epidemiology, and End Results (SEER) registries. We included all adults diagnosed 2009–2015 with a rare brain tumor entity (n = 216), defined as ependymoma (EP, n = 64), subependymoma (SUBEP, n = 21), ganglioglioma (GGL, n = 54), pilocytic astrocytoma (PA, n = 56) and primitive neuroectodermal tumor (PNET, n = 21). We analyzed symptomatology, tumor characteristics and outcomes.

Results

Mean age was 38.3 ± 17.2 years in GGL, 36.2 ± 16.9 in PA, 37.0 ± 19.1 in PNET, 51.7 ± 16.3 in EP and 49.8 ± 14.3 in SUBEP. The most common symptom was focal deficit (39.6–71.4%), and this symptom was most common in GGL patients with 64.2% of GGL presenting with seizures. Most patients had no or little restriction in activity before surgery (Performance Status 0–1), although up to 15.0% of PNET patients had a performance status of 4. Gross total resection was achieved in most (> 50%) tumor categories. Incidence of new deficits was 11.1–34.4%. In terms of postoperative complications, 0–4.8% had a hematoma of any kind, 1.9–15.6% an infection, 0–7.8% a venous thromboembolism and 3.7–10.9% experienced a complication requiring reoperation. There were 3 deaths within 30-days of surgery, and a 1-year mortality of 0–14.3%.

Conclusion

We have provided benchmarks for the current symptomatology, tumor characteristics and outcomes after surgery for rare brain tumors as collected by the SBTR and validated our results in an independent registry. These results may aid in clinical decision making and advising patients.

Return to work following meningioma surgery: a Swedish nationwide registry-based matched cohort study

Background

Meningioma is the most common primary intracranial tumor. It is usually slow growing and benign, and surgery is the main treatment modality. There are limited data on return to work following meningioma surgery. The objective of this study was to determine the patterns of sick-leave rate prior to surgery, and up to 2 years after, in patients compared to matched controls.

Methods

Data on patients ages 18 to 60 years with histologically verified intracranial meningioma between 2009 and 2015 were identified in the Swedish Brain Tumor Registry (SBTR) and linked to 3 national registries after 5 matched controls were assigned to each patient.

Results

We analyzed 956 patients and 4765 controls. One year prior to surgery, 79% of meningioma patients and 86% of controls were working (P < .001). The proportion of patients at work 2 years after surgery was 57%, in contrast to 84% of controls (P < .001). Statistically significant negative predictors for return to work in patients 2 years after surgery were high (vs low) tumor grade, previous history of depression, amount of sick leave in the year preceding surgery, and surgically acquired neurological deficits.

Conclusion

There is a considerable risk for long term sick leave 2 years after meningioma surgery. Neurological impairment following surgery was a modifiable risk factor increasing the risk for long-term sick leave. More effective treatment of depression may facilitate return to work in this patient group.

Post-chemoradiation volumetric response predicts survival in newly diagnosed glioblastoma treated with radiation, temozolomide, and bevacizumab or placebo

Background

In the current study we used contrast-enhanced T1 subtraction maps to test whether early changes in enhancing tumor volume are prognostic for overall survival (OS) in newly diagnosed glioblastoma (GBM) patients treated with chemoradiation with or without bevacizumab (BV).

Methods

Seven hundred ninety-eight patients (404 BV and 394 placebo) with newly diagnosed GBM in the AVAglio trial (NCT00943826) had baseline MRI scans available, while 337 BV-treated and 269 placebo-treated patients had >4 MRI scans for response evaluation. The volume of contrast-enhancing tumor was quantified and used for subsequent analyses.

Results

A decrease in tumor volume during chemoradiation was associated with a longer OS in the placebo group (hazard ratio [HR] = 1.578, P < 0.0001) but not BV-treated group (HR = 1.135, P = 0.4889). Results showed a higher OS in patients on the placebo arm with a sustained decrease in tumor volume using a post-chemoradiation baseline (HR = 1.692, P = 0.0005), and a trend toward longer OS was seen in BV-treated patients (HR = 1.264, P = 0.0724). Multivariable Cox regression confirmed that sustained response or stable disease was prognostic for OS (HR = 0.7509, P = 0.0127) when accounting for age (P = 0.0002), KPS (P = 0.1516), postsurgical tumor volume (P < 0.0001), O6-methylguanine-DNA methyltransferase status (P < 0.0001), and treatment type (P = 0.7637) using the post-chemoradiation baseline.

Conclusions

The post-chemoradiation timepoint is a better baseline for evaluating efficacy in newly diagnosed GBM. Early progression during the maintenance phase is consequential in predicting OS, supporting the use of progression-free survival rates as a meaningful surrogate for GBM.

Validation of postoperative residual contrast-enhancing tumor volume as an independent prognostic factor for overall survival in newly diagnosed glioblastoma

Background

In the current study, we pooled imaging data in newly diagnosed glioblastoma (GBM) patients from international multicenter clinical trials, single institution databases, and multicenter clinical trial consortiums to identify the relationship between postoperative residual enhancing tumor volume and overall survival (OS).

Methods

Data from 1511 newly diagnosed GBM patients from 5 data sources were included in the current study: (i) a single institution database from UCLA (N = 398; Discovery); (ii) patients from the Ben and Cathy Ivy Foundation for Early Phase Clinical Trials Network Radiogenomics Database (N = 262 from 8 centers; Confirmation); (iii) the chemoradiation placebo arm from an international phase III trial (AVAglio; N = 394 from 120 locations in 23 countries; Validation); (iv) the experimental arm from AVAglio examining chemoradiation plus bevacizumab (N = 404 from 120 locations in 23 countries; Exploratory Set 1); and (v) an Alliance (N0874) phase I/II trial of vorinostat plus chemoradiation (N = 53; Exploratory Set 2). Postsurgical, residual enhancing disease was quantified using T1 subtraction maps. Multivariate Cox regression models were used to determine influence of clinical variables, O6-methylguanine-DNA methyltransferase (MGMT) status, and residual tumor volume on OS.

Results

A log-linear relationship was observed between postoperative, residual enhancing tumor volume and OS in newly diagnosed GBM treated with standard chemoradiation. Postoperative tumor volume is a prognostic factor for OS (P < 0.01), regardless of therapy, age, and MGMT promoter methylation status.

Conclusion

Postsurgical, residual contrast-enhancing disease significantly negatively influences survival in patients with newly diagnosed GBM treated with chemoradiation with or without concomitant experimental therapy.

P6212The NAILED ACS trial - telephone-based long-term follow-up reduces risk factors after 36 months

Background

Cardiovascular secondary preventive strategies need improvement. The proportion of patients reaching guideline recommended treatment targets are low.

Purpose

We investigated if nurse-led, telephone-based follow-up including medical titration was superior to usual care in controlling blood pressure (BP) and low-density lipoprotein cholesterol (LDL-C) levels 36 months after an acute coronary syndrome (ACS).

Methods

All patients admitted with ACS at the local county hospital between 1st January 2010 and 31st December 2014 were screened for inclusion based on their ability to participate in a telephone-based follow-up. Participants were randomized into two parallel groups, an intervention group and a control group receiving usual care. BP and LDL-C were measured at one month, 12, 24 and 36 months. The intervention group received counseling and medical titration to attain treatment targets of BP (<140/<90 mmHG) and LDL-C (<2.5/<1.8 mmol/L). The primary outcome was LDL-C at 36 months.

Results

Out of 962 randomized patients, 797 were available for analysis after 36 months. In the intervention group, mean systolic blood pressure (SBP) was 4.1 mmHg lower (95% CI 1.7 - 6.4, p=0.001), diastolic blood pressure (DBP) was 2.8 mmHg lower (95% CI 1.4- 4.4, p<0.001) and mean LDL-C was 0.26 mmol/L lower (95% CI 0.12 - 0.4, p<0.001) when compared to the control group. The proportion of patients reaching treatment target goals was also significantly higher in the intervention group.

Conclusions

After 36 months of follow-up the nurse-led, telephone-based intervention led to significantly lower systolic blood pressure, diastolic blood pressure and LDL-C levels when compared to the control group. The intervention group also had a larger proportion of patients reaching target values.

Acknowledgement/Funding

The study received funding from the research and development unit, Region Jämtland Härjedalen.

Do we really know who has an MGMT methylated glioma? Results of an international survey regarding use of MGMT analyses for glioma

Background

Glioma O6-methylguanine-DNA methyltransferase (MGMT) promoter methylation status informs clinical decision making. Worldwide different methods and cutoff levels are used, which can lead to discordant methylation results.

Methods

We conducted an international survey to clarify which methods are regularly used and why. We also explored opinions regarding international consensus on methods and cutoff.

Results

The survey had 152 respondents from 25 countries. MGMT methylation status is determined for all glioblastomas in 37% of laboratories. The most common methods are methylation-specific polymerase chain reaction (msPCR) (37%) and pyrosequencing (34%). A method is selected for simplicity (56%), cost-effectiveness (50%), and reproducibility of results (52%). For sequencing, the number of CpG sites analyzed varies from 1–3 up to more than 16. For 50% of laboratories, the company producing the kit determines which CpG sites are examined, whereas 33% select the sites themselves. Selection of cutoff is equally distributed among a cutoff defined in the literature, by the local laboratory, or by the outside laboratory performing the analysis. This cutoff varies, reported from 1% to 30%, and in 1 laboratory tumor is determined as methylated in case of 1 methylated CpG site of 17 analyzed. Some report tumors as unmethylated or weakly vs highly methylated. An international consensus on MGMT methylation method and cutoff is warranted by 66% and 76% of respondents, respectively. The method preferred would be msPCR (45%) or pyrosequencing (42%), whereas 18% suggest next-generation sequencing.

Conclusion

Although analysis of MGMT methylation status is routine, there is controversy regarding laboratory methods and cutoff level. Most respondents favor development of international consensus guidelines.

P14.09 INITIAL GLOBAL SYMPTOMS IN GLIOBLASTOMA ARE OFTEN MISINTERPRETED AND ASSOCIATED WITH SHORTER SURVIVAL

BACKGROUND

A seizure as the only symptom before diagnosing glioblastoma improves survival rate. Apart from seizures, the main presenting symptom of glioma in adults is cognitive dysfunction. The effect of generalized symptoms or loss of function on lead times and survival of glioblastoma has not been studied. Generalized symptoms include cognitive dysfunction, headache, dizziness and fatigue. Loss of function comprise paresis, sensory deficit and speech aberrations. The objective of this study was to evaluate the influence of different presenting symptoms regarding health care level, lead times and survival.

MATERIAL AND METHOD

Medical case notes regarding 189 consecutive patients with histopathologically verified glioblastoma, were reviewed for information about the date and level of care of the first medical appointment, presenting symptom/s, and date of the diagnostic radiology. The extent of surgery was noted. Data on oncologic treatment was retrieved. Summary statistics were provided for patient demographics and treatment factors. The estimates of overall survival were calculated using the Kaplan-Meier method. Survival time was calculated from the date of radiological diagnosis.

RESULTS

The majority of patients (66%) presented with generalized symptoms, which significantly reduced survival compared to not having generalized symptoms (mean survival 10.5 months vs 19.9 months, p=0.001). The most common generalized symptom was cognitive dysfunction which further reduced survival (mean survival 9.0 months, p=0.0001). Among the different cognitive aberrations, personality change and memory impairment were associated with a significantly poorer survival, (mean survival 7.9 months, p=0.015 and 8.0 months p=0.010, respectively). Disorientation also significantly reduced survival (mean survival 8.2 months p=0.001). Presenting with loss of function (58%) did not influence survival (mean survival 12.3 months). 32% of patients with an epileptic seizure as initial symptom had significantly prolonged survival compared to those not having an epileptic seizure (mean 18.9 months vs 11.0 months p=0.002). When comparing focal and secondary generalized epileptic seizures, focal epileptic seizures were more favorable. The first medical appointment was evenly distributed between primary health care and the emergency units. 8.4% of patients had multiple contacts in primary health care without being admitted to radiology or specialized care. All but one of them presented with generalized symptoms.

CONCLUSION

Glioblastoma patients presenting with generalized symptoms such as cognitive dysfunction are difficult to identify and have significantly poorer survival than other glioblastoma patients. Patients presenting with an epileptic seizure have shorter leadtime and longer survival.

Maximum Tolerated Dose and Pharmacokinetics of Paclitaxel Micellar in Patients with Recurrent Malignant Solid Tumours: A Dose-Escalation Study

Introduction

A water-soluble Cremophor EL-free formulation of paclitaxel, in which retinoic acid derivates solubilize paclitaxel by forming micelles (paclitaxel micellar), was studied for the first time in man to establish the maximum tolerated dose (MTD) and to characterize the pharmacokinetics (PK).

Methods

This was an open-label, one-arm, dose-escalating study in patients with advanced solid malignant tumours, for which no standard therapy was available or had failed. Paclitaxel micellar was given as 1-h intravenous infusion every 21 days for 3 cycles, mainly without premedication. Plasma samples were collected during 24 h at the first cycle and paclitaxel concentrations were assayed by high-performance liquid chromatography. PK was evaluated using a two-compartment model.

Results

Thirty-four patients received paclitaxel micellar at doses ranging between 90 and 275 mg/m². MTD was established as 250 mg/m². Fatigue and neuropathy were the most frequent dose-limiting toxicities. No hypersensitivity reactions were observed. PK of paclitaxel was evaluated in 25 data sets. Paclitaxel micellar had a rapid initial distribution phase, mean half-life 0.55 h, estimated to be completed 3 h after dosing and a mean terminal half-life of 8.8 h. Mean clearance was 13.4 L/h/m² with fivefold interindividual variability. The residual areas after 10 h and 24 h were 15.7 ± 8.6% and 5.7 ± 3.9% of the area under the plasma concentration–time curve to infinite time (AUC_inf), respectively.

Conclusion

No new side effects unknown for paclitaxel were observed. Maximum plasma concentration (C_max) and AUC_inf showed a tendency to increase linearly with dose within the 150–275 mg/m² dose range. The possibility to administer paclitaxel micellar without steroid premedication makes it an attractive candidate for further studies in combination with immunotherapy.

Trial Registration

EudraCT no: 2004-001821-54.

Funding

Oasmia Pharmaceutical AB.

Cancer patients' use of complementary and alternative medicine in Sweden: a cross-sectional study

BACKGROUND

Access to and advice on Complementary and Alternative Medicine (CAM) are uncommon within Swedish conventional cancer care and little is known about cancer patients' own use of CAM. The aim of this cross-sectional study was to explore Swedish cancer patients´ patterns of CAM use, their experiences and preferences.

METHODS

Questionnaires were distributed consecutively to 1297 cancer patients at a university hospital's out-patient oncology units. The response rate was 58% (n = 755). Descriptive statistics were used to analyze the survey data. A logistic regression model was used to investigate the association between CAM use and gender, age and level of education. Open-ended responses were analyzed, using qualitative content analysis.

RESULTS

Lifetime CAM use was reported by 34% (n = 256), and 26% (n = 198) used CAM after cancer diagnosis. Being female, younger and having higher education predicted CAM use. Most commonly used methods were natural products including vitamins and minerals and relaxation. Main reasons for CAM use were improvement of physical, general and emotional wellbeing and increasing the body's ability to fight cancer. Satisfaction with CAM usage was generally high. Reported adverse effects were few and mild; 54% of users spent < 50 Euro a month on CAM. One third had discussed their CAM use with cancer care providers. More than half of all participants thought that cancer care providers should be able to discuss (58%) and to consider (54%) use of CAM modalities in cancer care.

CONCLUSIONS

Despite limited access and advice within conventional cancer care, one fourth of Swedish cancer patients use CAM. The insufficient patient-provider dialogue diverges with most patients' wish for professional guidance in their decisions and integration of CAM modalities in conventional cancer care. Concurrent and multimodal CAM use implies challenges and possibilities for cancer care that need to be considered.

Lrig2 and Hpse2, mutated in urofacial syndrome, pattern nerves in the urinary bladder

Mutations in leucine-rich-repeats and immunoglobulin-like-domains 2 (LRIG2) or in heparanase 2 (HPSE2) cause urofacial syndrome, a devastating autosomal recessive disease of functional bladder outlet obstruction. It has been speculated that urofacial syndrome has a neural basis, but it is unknown whether defects in urinary bladder innervation are present. We hypothesized that urofacial syndrome features a peripheral neuropathy of the bladder. Mice with homozygous targeted Lrig2 mutations had urinary defects resembling those found in urofacial syndrome. There was no anatomical blockage of the outflow tract, consistent with a functional bladder outlet obstruction. Transcriptome analysis revealed differential expression of 12 known transcripts in addition to Lrig2, including 8 with established roles in neurobiology. Mice with homozygous mutations in either Lrig2 or Hpse2 had increased nerve density within the body of the urinary bladder and decreased nerve density around the urinary outflow tract. In a sample of 155 children with chronic kidney disease and urinary symptoms, we discovered novel homozygous missense LRIG2 variants that were predicted to be pathogenic in 2 individuals with non-syndromic bladder outlet obstruction. These observations provide evidence that a peripheral neuropathy is central to the pathobiology of functional bladder outlet obstruction in urofacial syndrome, and emphasize the importance of LRIG2 and heparanase 2 for nerve patterning in the urinary tract.

Neurosurgical patterns of care for diffuse low-grade gliomas in Sweden between 2005 and 2015

BACKGROUND

In the last decade, increasing evidence has evolved for early and maximal safe resection of diffuse low-grade gliomas (LGGs) regarding survival. However, changes in clinical practice are known to occur slowly and we do not know if the scientific evidence has yet resulted in changes in neurosurgical patterns of care.

METHODS

The Swedish Brain Tumor Registry was used to identify all patients with a first-time histopathological diagnosis of LGG between 2005 and 2015. For analysis of surgical treatment patterns, we subdivided assessed time periods into 2005-2008, 2009-2012, and 2013-2015. Population-based data on patient and disease characteristics, surgical management, and outcomes were extracted.

RESULTS

A total of 548 patients with diffuse World Health Organization grade II gliomas were identified: 142 diagnosed during 2005-2008, 244 during 2009-2012, and 162 during 2013-2015. Resection as opposed to biopsy was performed in 64.3% during 2005-2008, 74.2% during 2009-2012, and 74.1% during 2013-2015 (P = .08). There was no difference among the 3 periods regarding overall survival (P = .11). However, post hoc analysis of data from the 4 (out of 6) centers that covered all 3 time periods demonstrated a resection rate of 64.3% during 2005-2008, 77.4% during 2009-2012, and 75.4% during 2013-2015 (P = .02) and longer survival of patients diagnosed 2009 and onward (P = .04).

CONCLUSION

In this nationwide, population-based study we observed a shift over time in favor of LGG resection. Further, a positive correlation between the more active surgical strategy and longer survival is shown, although no causality can be claimed because of possible confounding factors.

No Evidence for Increased Brain Tumour Incidence in the Swedish National Cancer Register Between Years 1980-2012

BACKGROUND/AIM

The main objective of this study was to evaluate if there was an increased incidence of brain tumours between years 1980-2012, a time period when mobile phone usage has increased substantially.

MATERIALS AND METHODS

From the Swedish Cancer Registry, cases of meningiomas, low-grade gliomas (LGG) and high-grade gliomas (HGG) were identified in patients between 1980-2012. Direct age-standardised incidence rates were used to calculate incidence trends over time.

RESULTS

A total of 13,441 cases of meningiomas, 12,259 cases of high-grade gliomas and 4,555 cases of LGG were reported to the register during the study period. The results suggest that there may be a negative development in the trend for LGG of -0,016 cases per 100,000 and year, corresponding to a mean reduction of approximately 1% per year.

CONCLUSION

The present study was not able to demonstrate an increased incidence of glioma during the past 30 years in Sweden.

Neurosurgical treatment and outcome patterns of meningioma in Sweden: a nationwide registry-based study

Background

Surgery is the main treatment modality for intracranial meningiomas, but data on short-term surgical outcome are limited. The aim of this Swedish nationwide registry-based study was to benchmark the 30-day complication rate in a cohort of meningioma patients using data from the Swedish brain tumor registry (SBTR). Furthermore, we investigated outcomes for asymptomatic patients.

Methods

Data were collected from the SBTR for all adults with histopathologically verified intracranial meningioma between 2009 and 2015. Patient symptoms, tumor characteristics, and complications within 30 days postoperatively were analyzed.

Results

In total, 2324 patients, with a mean age of 58.7 years (SD 13.5), underwent surgery for intracranial meningioma and 14.1% of the patients were asymptomatic before the intervention. The most common symptom prior to treatment was focal deficit, which occurred in 1450 patients (62.4%). Moreover, within 30 days after surgery, 344 patients (14.8%) developed new neurological deficits and new-onset seizures occurred in 105 patients (4.5%), while 8.3% of asymptomatic patients developed neurological deficit and 3.7% new-onset seizures. Due to complications, reoperations were performed in 120 patients (5.2%). The postoperative 30-day mortality in the whole cohort was 1.5%.

Conclusion

This study benchmarks the 30-day complication rate after meningioma surgery and provides outcome data in the highly relevant group of asymptomatic patients using data from the Swedish brain tumor registry. Since surgical decision-making is a careful consideration of short-term risk versus long-term benefit, this information may be useful for both caregivers and patients.

Short-Term Surgical Outcome for Vestibular Schwannoma in Sweden: A Nation-Wide Registry Study

Background: Vestibular Schwannoma (VS) is a benign neoplasm arising from the 8th cranial nerve, with surgery one of the treatment modalities. In a nation-wide registry study, we describe the baseline, treatment characteristics, and short-term outcome in patients surgically treated for VS.

Methods: We performed a nationwide study with data from the Swedish Brain Tumor Registry (SBTR) for all adults diagnosed with VS 2009–2015. Patient symptoms, tumor characteristics, and postoperative complications were analyzed.

Results: In total 348 patients underwent surgery for VS. Mean age was 50.6 ± 14.5 years and 165 patients (47.4%) were female. The most common symptom was focal neurological deficit (92.0%), with only 25 (7.2%) being asymptomatic prior to surgery, and 217 (63.6%) had no restriction in activity. Following surgery, 100 (28.7%) patients developed new deficit(s). In terms of postoperative complications; 11 (3.2%) had a hematoma, 35 (10.1%) an infection, 10 (2.9%) a venous thromboembolism, and 23 (6.6%) had a reoperation due to complication. There were no deaths within 30-days after surgery. When grouped according to tumor size (< 4 vs. ≥4 cm), those with ≥4 cm tumors were more often males (p = 0.02), had more often ICP related symptoms (p = 0.03) and shorter time from imaging to surgery (p < 0.01). Analysis of the younger (< 65 years) vs. elderly (≥65 years) revealed no difference in outcome except increased 1-year mortality (p = 0.002) in elderly.

Conclusion: In this nation-wide registry-study, we benchmark the 30-day complication rate after VS surgery as collected by the SBTR. Further, we present the current neurosurgical outcome data from both VS smaller than 40 mm compared to larger tumors, as well as younger vs. elderly VS patients. Since surgical decision making is a careful consideration of short term risk vs. long term benefit, this information can be useful in clinical decision making.

Radiologic progression of glioblastoma under therapy-an exploratory analysis of AVAglio

Background

In this exploratory analysis of AVAglio, a randomized phase III clinical study that investigated the addition of bevacizumab (Bev) to radiotherapy/temozolomide in newly diagnosed glioblastoma, we aim to radiologically characterize glioblastoma on therapy until progression and investigate whether the type of radiologic progression differs between treatment arms and is related to survival and molecular data.

Methods

Five progression types (PTs) were categorized using an adapted algorithm according to MRI contrast enhancement behavior in T1- and T2-weighted images in 621 patients (Bev, n = 299; placebo, n = 322). Frequencies of PTs (designated as classic T1, cT1 relapse, T2 diffuse, T2 circumscribed, and primary nonresponder), time to progression (PFS), and overall survival (OS) were assessed within each treatment arm and compared with molecular subtypes and O6-methylguanine DNA methyltransferase (MGMT) promoter methylation status.

Results

PT frequencies differed between the Bev and placebo arms, except for "T2 diffuse" (12.4% and 7.1%, respectively). PTs showed differences in PFS and OS; with "T2 diffuse" being associated with longest survival. Complete disappearance of contrast enhancement during treatment ("cT1 relapse") showed longer survival than only partial contrast enhancement decrease ("classic T1"). "T2 diffuse" was more commonly MGMT hypermethylated. Only weak correlations to molecular subtypes from primary tissue were detected.

Conclusions

Progression of glioblastoma under therapy can be characterized radiologically. These radiologic phenotypes are influenced by treatment and develop differently over time with differential outcomes. Complete resolution of contrast enhancement during treatment is a favorable factor for outcome.

Disparities in colorectal cancer between Northern and SouthernSweden - a report from the new RISK North database

BACKGROUND

Geographic cancer health disparities have been reported in Sweden. The disparities are not fully understood, but may be attributed to differences in exposure to risk factors as well as differences in health care, socioeconomics and demography. The aim of this study was to describe the new nationwide population based RISK North database and its potential by analysing health disparities in colorectal cancer between Northern and Southern Sweden.

METHODS

Cancer-specific data from the National Cancer Quality Registers for colorectal, gastric and oesophageal cancer and brain tumours were linked to several nationwide registers hereby creating a new database - RISK North. To exemplify the potential of RISK North, we analyzed differences in colorectal cancer incidence, mortality and survival in relation to gender, age, cohabitation and education between Northern and Southern Sweden 2007-2013.

RESULTS

In colon cancer, the age-adjusted incidence per 100.000 was lower in Northern than Southern Sweden, 35.9 in the North vs. 41.1 in the South (p < .01); mortality rates were 11.0 vs. 12.2 (p < .01). For rectal cancer, incidence rates were 17.6 vs. 19.7 (p < .01) and mortality rates 5.33 vs. 5.89 (p = .07), respectively. The largest difference in incidence was demonstrated for colon cancer among individuals >79 years old (190. vs. 237, i.e., ∼20%). Survival in colon cancer was higher in Southern Sweden, HR 0.92 (0.87-0.98) adjusted for age, gender, co-habiting, education and m-stage at diagnosis. No difference in survival was seen for rectal cancer.

CONCLUSIONS

The new RISK North database enabled analysis of cancer disparities between Northern and Southern Sweden. The incidence of colorectal cancer were lower in the North of Sweden whereas colon cancer survival was higher in the South. These differences can be further analysed utilising the RISK North database.

Age and surgical outcome of low-grade glioma in Sweden

BACKGROUND

Low-grade gliomas (LGG) are slow-growing primary brain tumors that typically affect young adults. Advanced age is widely recognized as a poor prognostic factor in LGG. The impact of age on postoperative outcome in this patient group has not been systemically studied.

METHODS

We performed a nationwide register-based study with data from the Swedish Brain Tumor Registry (SBTR) for all adults diagnosed with a supratentorial LGG (WHO grade II astrocytoma, oligoastrocytoma, or oligodendroglioma) during 2005-2015. Patient- and tumor-related characteristics, postoperative complications, and survival were compared between three different age groups (18-39 years, 40-59 years, and ≥60 years).

RESULTS

We identified 548 patients; 204 patients (37.2%) aged 18-39 years, 227 patients (41.4%) aged 40-59 years, and 117 patients (21.4%) ≥60 years of age. Unfavorable preoperative prognostic factors (eg, functional status and neurological deficit) were more common with increased age (P < .001). In addition, overall survival was significantly impaired in those 60 years and above (P < .001). We observed a clear dose-response for age with separation of survival curves at 50 years. Biopsy was more common in patients ≥60 years (P < .001). Subgroup analysis of patients with resection revealed a higher amount of postoperative neurological deficits in older patients (P = .029).

CONCLUSION

In general, older patients with LGG have several unfavorable prognostic factors compared with younger patients but seem to tolerate surgery in a comparable fashion. However, more neurological deficits were observed following resections in elderly. Our data further support a cutoff at 50 years rather than 40 years for selection of high-risk patients.

Access to supportive care during and after cancer treatment and the impact of socioeconomic factors

BACKGROUND

Sweden's national cancer strategy points out several areas of cancer care that need improvements. Among them the need for supportive care resources to be accessible through the entire cancer trajectory and the reduction of socioeconomic inequalities. The aim of this study was to compare the patient-reported access to supportive care in the Stockholm-Gotland region between patients diagnosed in 2014 and 2016. The aim was also to describe how socioeconomic and other demographic factors impact access to supportive care.

MATERIAL AND METHODS

All patients with gynaecological, head and neck, haematological and upper gastrointestinal cancers diagnosed in the Stockholm-Gotland regions were identified through the Swedish Cancer Registries. Data were collected via a questionnaire on demographic, socioeconomic factors and patients' perception (n = 1872) of access to supportive care. Data were summarized using descriptive statistics and logistic regression was used for relevant variables.

RESULTS

Access to some supportive care resources, such as contact nurses (CNs) and individual written care plans (IWCPs) had significantly improved from 2014 to 2016. The proportion of patients that had received information about patient advocacy groups (PAGs) had also improved but remained on a relatively low level (29 and 35%, respectively). The proportion of patients being refereed to palliative care (PC) did not change between 2014 and 2016. In total, 10% of the patients reported to having received information on second medical opinion (SMO). Patients that had undergone multimodality cancer treatment were more likely to report access to supportive care, and those with lower education levels were more likely to have access to CNs and IWCPs.

CONCLUSION

Access to some of the supportive care resources have shown improvements in the Stockholm-Gotland region but further efforts are required, especially regarding access to PC, information about PAGs and SMOs.

LMO7 and LIMCH1 interact with LRIG proteins in lung cancer, with prognostic implications for early-stage disease

OBJECTIVES

The human leucine-rich repeats and immunoglobulin-like domains (LRIG) protein family comprises the integral membrane proteins LRIG1, LRIG2 and LRIG3. LRIG1 is frequently down-regulated in human cancer, and high levels of LRIG1 in tumor tissue are associated with favorable clinical outcomes in several tumor types including non-small cell lung cancer (NSCLC). Mechanistically, LRIG1 negatively regulates receptor tyrosine kinases and functions as a tumor suppressor. However, the details of the molecular mechanisms involved are poorly understood, and even less is known about the functions of LRIG2 and LRIG3. The aim of this study was to further elucidate the functions and molecular interactions of the LRIG proteins.

MATERIALS AND METHODS

A yeast two-hybrid screen was performed using a cytosolic LRIG3 peptide as bait. In transfected human cells, co-immunoprecipitation and co-localization experiments were performed. Proximity ligation assay was performed to investigate interactions between endogenously expressed proteins. Expression levels of LMO7 and LIMCH1 in normal and malignant lung tissue were investigated using qRT-PCR and through in silico analyses of public data sets. Finally, a clinical cohort comprising 355 surgically treated NSCLC cases was immunostained for LMO7.

RESULTS

In the yeast two-hybrid screen, the two paralogous proteins LMO7 and LIMCH1 were identified as interaction partners to LRIG3. LMO7 and LIMCH1 co-localized and co-immunoprecipitated with both LRIG1 and LRIG3. Endogenously expressed LMO7 was in close proximity of both LRIG1 and LRIG3. LMO7 and LIMCH1 were highly expressed in normal lung tissue and down-regulated in malignant lung tissue. LMO7 immunoreactivity was shown to be a negative prognostic factor in LRIG1 positive tumors, predicting poor patient survival.

CONCLUSION

These findings suggest that LMO7 and LIMCH1 physically interact with LRIG proteins and that expression of LMO7 is of clinical importance in NSCLC.

The effects of clinical and sociodemographic factors on survival, resource use and lead times in patients with high-grade gliomas: a population-based register study

Background

Previous studies indicate an effect of sociodemographic factors on risk for being diagnosed with, as well as on survival of cancer in general. Our primary aim was to analyse sociodemographic factors, resource use and lead times in health care after diagnosis with high grade malignant glioma (HGG) in a large population based cohort.

Methods

A register-based study using several unique high-coverage registries. All patients over the age of 18 diagnosed with HGG in the Swedish Stockholm–Gotland region between 2001 and 2013 (n = 1149) were included.

Results

In multivariable cox proportional hazard model of survival, older age, male sex and high tumour grade were associated with worse survival. No significant differences could be seen related to country of birth. A high disposable income was associated with better survival and fewer occasions of pre-diagnostic inpatient care. Older age and comorbidities were correlated with a significantly increased number of outpatient visits the year before HGG diagnosis. In addition, male sex, being born outside Sweden was associated to a higher number of outpatient visits the year after diagnosis in multivariable analysis. Leadtime from diagnosis (first suspicion on brain scan) to surgery showed that the oldest patients, patients with comorbidity and patients born outside Europe had to wait longer for surgery.

Conclusions

Sociodemographic factors like education, income and country of birth have impact on care processes both before and after the diagnosis HGG. This needs to be acknowledged in addition to important clinical factors like age, comorbidity and tumour grade, in order to accomplish more equal cancer care.

[Survival increases for all cancer diagnoses - but inequality persists]

New data show a continuously increased five-year survival for almost all analyzed cancer diagnoses since 1990. It has to be emphasized that the figures are uncertain due to the limited number of patients. The variation is huge and the greatest improvements are seen not least among the three major tumor diseases (breast, colorectal and prostate cancer), where the society, industry and research bodies made the biggest investments over the years. The causes of improved survival can be sought in several areas, such as earlier detection and better treatments. In addition to survival estimates, it is also always of importance to consider aspects around patient related outcome, such as quality of life.

Patient-reported experiences on supportive care strategies following the introduction of the first Swedish national cancer strategy and in accordance with the new patient act

INTRODUCTION

Several supportive care strategies are described in Swedish legislation and policy documents, such as the National Cancer Strategy and the Patient act. No previous systematic evaluation from a patient perspective has been performed. The aim of this study was to evaluate how these supportive care strategies are experienced by patients treated for cancer in the Stockholm-Gotland region.

MATERIAL AND METHODS

In this cross-sectional study, we identified patients (diagnosed with gynaecological, haematological, upper gastrointestinal and head and neck cancer during 2014) from the Swedish Cancer Register. The European Organization of Research and Treatment of Cancer, EORTC, Quality of Life Questionnaires, QLQ-C30, Information QLQ-INFO25 and a study-specific questionnaire was used to collect data during follow-up after cancer treatment. We collected data on 869 cancer patients' perception of availability and access to supportive care strategies and how they were experienced.

RESULTS

Among the supportive care strategies suggested in the legislation and policy documents, just over half of the patients (n = 393, 53%) reported that they had access to a contact nurse, while 43% (n = 312) had received an individual written care plan and 16% (n= 137) had been referred to palliative care. Only 29% (n = 218) of the patients reported that they had received information about patient advocacy groups and 8% (n= 62) on medical second opinions from their cancer care team.

DISCUSSION

The supportive care strategies suggested in Swedish legislation and policy documents may be useful but are only available for some patients. The implementation goals for the National Cancer Strategy and the Swedish Patient act have not been reached.

LRIG1 negatively regulates RET mutants and is downregulated in thyroid cancer

Papillary thyroid carcinoma (PTC) and medullary thyroid carcinoma (MTC) are characterized by genomic rearrangements and point mutations in the proto-oncogene RET. Leucine-rich repeats and immunoglobulin-like domains 1 (LRIG1) is a suppressor of various receptor tyrosine kinases, including RET. LRIG1 expression levels are associated with patient survival in many cancer types. In the present study, we investigated whether the oncogenic RET mutants RET2A (C634R) and RET2B (M918T) were regulated by LRIG1, and the possible effects of LRIG1 expression in thyroid cancer were investigated in three different clinical cohorts and in a RET2B-driven mouse model of MTC. LRIG1 was shown to physically interact with both RET2A and RET2B and to restrict their ligand-independent activation. LRIG1 mRNA levels were downregulated in PTC and MTC compared to normal thyroid gland tissue. There was no apparent association between LRIG1 RNA or protein expression levels and patient survival in the studied cohorts. The transgenic RET2B mice developed pre-cancerous medullary thyroid lesions at a high frequency (36%); however, no overt cancers were observed. There was no significant difference in the incidence of pre-cancerous lesions between Lrig1 wild-type and Lrig1-deficient RET2B mice. In conclusion, the findings that LRIG1 is a negative regulator of RET2A and RET2B and is also downregulated in PTC and MTC may suggest that LRIG1 functions as a thyroid tumor suppressor.

Lrig1 is a haploinsufficient tumor suppressor gene in malignant glioma

Recently, a genome-wide association study showed that a single nucleotide polymorphism (SNP) —rs11706832—in intron 2 of the human LRIG1 (Leucine-rich repeats and immunoglobulin-like domains 1) gene is associated with susceptibility to glioma. However, the mechanism by which rs11706832 affects glioma risk remains unknown; additionally, it is unknown whether the expression levels of LRIG1 are a relevant determinant of gliomagenesis. Here, we investigated the role of Lrig1 in platelet-derived growth factor (PDGF)-induced experimental glioma in mice by introducing mono-allelic and bi-allelic deletions of Lrig1 followed by inducing gliomagenesis via intracranial retroviral transduction of PDGFB in neural progenitor cells. Lrig1 was expressed in PDGFB-induced gliomas in wild-type mice as assessed using in situ hybridization. Intriguingly, Lrig1-heterozygous mice developed higher grade gliomas than did wild-type mice (grade IV vs. grade II/III, p = 0.002). Reciprocally, the ectopic expression of LRIG1 in the TB107 high-grade human glioma (glioblastoma, grade IV) cell line decreased the invasion of orthotopic tumors in immunocompromised mice in vivo and reduced cell migration in vitro. Concomitantly, the activity of the receptor tyrosine kinase MET was downregulated, which partially explained the reduction in cell migration. In summary, Lrig1 is a haploinsufficient suppressor of PDGFB-driven glioma, possibly in part via negative regulation of MET-driven cell migration and invasion. Thus, for the first time, changes in physiological Lrig1 expression have been linked to gliomagenesis, whereby the SNP rs11706832 may affect glioma risk by regulating LRIG1 expression.