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1.
Eur J Cancer ; 161: 26-37, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-34902765

RESUMO

BACKGROUND: The potential benefit of adding palbociclib to fulvestrant as first-line treatment in hormone receptor (HR)-positive, human epidermal growth factor receptor 2 (HER2)-negative endocrine-sensitive advanced breast cancer (ABC) patients remains uncharacterized. PATIENTS AND METHODS: In this randomized (1:1), double-blind, phase II study, postmenopausal women with HR-positive, HER2-negative ABC with de novo metastatic disease or those who relapsed after >12 months of adjuvant endocrine therapy received palbociclib/fulvestrant or placebo/fulvestrant. Stratification was based on recurrent versus de novo metastatic disease and visceral involvement. The primary objective was one-year progression-free survival (PFS-1y) rate. The sample size was 190 patients. The two-sided alpha of 0.2, 80% of power to detect a difference between the arms, assuming PFS rates of 0.695 and 0.545 for palbociclib/fulvestrant and placebo/fulvestrant, respectively. RESULTS: In total, 189 patients were randomized to palbociclib/fulvestrant ([n = 94] or placebo/fulvestrant [n = 95]). 45.5% and 60.3% of patients had de novo metastatic disease and visceral involvement, respectively. PFS-1y rates were 83.5% and 71.9% in the palbociclib/fulvestrant and placebo/fulvestrant arms, (HR 0.55, 80% CI 0.36-0.83, P = 0.064). The median PFS were 31.8 and 22.0 months for the palbociclib/fulvestrant and placebo/fulvestrant arms (aHR 0.48, 80% CI 0.37-0.64, P = 0.001). The most frequent grade 3-4 adverse events were neutropenia (68.1% vs. 0%), leucopenia (26.6% vs. 0%), anemia (3.2% vs. 0%), and lymphopenia (14.9% vs. 2.1%) for the palbociclib/fulvestrant and placebo/fulvestrant, respectively. The most frequent non-hematologic grade 3-4 adverse event was fatigue (4.3% vs. 0%). CONCLUSIONS: Palbociclib/fulvestrant demonstrated better PFS-1y rates and median PFS than placebo/fulvestrant in HR-positive/HER2-negative endocrine-sensitive ABC patients.


Assuntos
Neoplasias da Mama/tratamento farmacológico , Fulvestranto/uso terapêutico , Piperazinas/uso terapêutico , Piridinas/uso terapêutico , Adulto , Idoso , Idoso de 80 Anos ou mais , Método Duplo-Cego , Feminino , Fulvestranto/farmacologia , Humanos , Pessoa de Meia-Idade , Piperazinas/farmacologia , Piridinas/farmacologia
3.
Clin Transl Oncol ; 21(1): 87-93, 2019 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-30617923

RESUMO

Nutritional deficiency is a common medical problem that affects 15-40% of cancer patients. It negatively impacts their quality of life and can compromise treatment completion. Oncological therapies, such as surgery, radiation therapy, and drug therapies are improving survival rates. However, all these treatments can play a role in the development of malnutrition and/or metabolic alterations in cancer patients, induced by the tumor or by its treatment. Nutritional assessment of cancer patients is necessary at the time of diagnosis and throughout treatment, so as to detect nutritional deficiencies. The Patient-Generated Subjective Global Assessment method is the most widely used tool that also evaluates nutritional requirements. In this guideline, we will review the indications of nutritional interventions as well as artificial nutrition in general and according to the type of treatment (radiotherapy, surgery, or systemic therapy), or palliative care. Likewise, pharmacological agents and pharmaconutrients will be reviewed in addition to the role of regular physical activity.


Assuntos
Neoplasias/terapia , Estado Nutricional , Cuidados Paliativos , Guias de Prática Clínica como Assunto/normas , Qualidade de Vida , Ensaios Clínicos como Assunto , Humanos , Avaliação Nutricional , Prognóstico , Sociedades Médicas
4.
Clin Transl Oncol ; 21(1): 94-105, 2019 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-30627982

RESUMO

One of the most common side effects of cancer treatment is cardiovascular disease, which substantially impacts long-term survivor's prognosis. Cardiotoxicity can be related with either a direct side effect of antitumor therapies or an accelerated development of cardiovascular diseases in the presence of preexisting risk factors. Even though it is widely recognized as an alarming clinical problem, scientific evidence is scarce in the management of these complications in cancer patients. Consequently, current recommendations are based on expert consensus. This Guideline represents SEOM's ongoing commitment to progressing and improving supportive care for cancer patients.


Assuntos
Antineoplásicos/efeitos adversos , Cardiotônicos/uso terapêutico , Cardiotoxicidade/prevenção & controle , Doenças Cardiovasculares/prevenção & controle , Neoplasias/tratamento farmacológico , Guias de Prática Clínica como Assunto/normas , Cardiotoxicidade/diagnóstico , Cardiotoxicidade/etiologia , Doenças Cardiovasculares/induzido quimicamente , Doenças Cardiovasculares/diagnóstico , Ensaios Clínicos como Assunto , Gerenciamento Clínico , Humanos , Prognóstico , Sociedades Médicas
5.
Clin Transl Oncol ; 21(4): 467-478, 2019 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-30298467

RESUMO

AIM: To define recommendations that permit safe management of antineoplastic medication, minimise medication errors and improve the safety of cancer patients undergoing treatment. METHODS: By reviewing the literature and consulting the websites of various health organisations and agencies, an expert committee from the Spanish Society of Hospital Pharmacy and the Spanish Society of Medical Oncology defined a set of safe practices covering all stages of providing cancer therapy to patients. The Spanish Society of Oncology Nursing revised and endorsed the final list. RESULTS: In total, 68 recommendations arranged in five sections were defined. They include issues concerning the training of health professionals, the technological resources needed, treatment planning, informing the patient and his/her family, the processes of prescribing, preparing, dispensing and administering cancer therapy (orally, parenterally or intrathecally), assessing patient adherence and treatment toxicity. CONCLUSIONS: It is essential for healthcare establishments to implement specific measures designed to prevent medication errors, in order to ensure the safety of cancer patients treated with antineoplastic medication.


Assuntos
Antineoplásicos/uso terapêutico , Oncologia/normas , Conduta do Tratamento Medicamentoso/normas , Segurança do Paciente/normas , Antineoplásicos/efeitos adversos , Humanos , Oncologia/organização & administração , Erros de Medicação/prevenção & controle , Neoplasias/tratamento farmacológico , Enfermagem Oncológica/organização & administração , Serviço de Farmácia Hospitalar/organização & administração , Espanha
6.
Clin Transl Oncol ; 20(5): 619-629, 2018 May.
Artigo em Inglês | MEDLINE | ID: mdl-29043569

RESUMO

BACKGROUND: Malnutrition is a frequent medical problem of cancer patients that negatively impacts their quality of life. METHODS: A multidisciplinary group of experts in Medical Oncology, Pharmacy, and Nutrition convened to discuss the management of the nutritional support in cancer patients. RESULTS: Of the 18 questions addressed, 9 focused on nutritional support, 5 were related to parenteral nutrition (PN) and 4 about home PN (HPN). The panel of experts recommends using nutritional screening routinely, at diagnosis and throughout the disease course, for detecting the risk of malnutrition and, if it is positive, to perform a complete nutritional assessment, to diagnose malnutrition. Currently, there are different screening tools and methods that allow us to detect nutritional risk. Based on the evidence and experience, the panel stated that PN is indicated mainly when it is not possible to use the digestive tract and/or oral feeding and/or enteral nutrition is not sufficient or possible. The nutritional needs of the cancer patients, except in those cases where individualized measures are required, should be considered similar to healthy individuals (25-30 kcal/kg/day). The panel considers that the nutritional monitoring of the cancer patient should be multidisciplinary and adapted to the characteristics of each center. Additionally, the objective of the HPN is to improve or maintain the nutritional status of a patient at home. CONCLUSIONS: This document seeks to lay down a set of recommendations and to identify key issues that may be useful for the nutritional management of cancer patients.


Assuntos
Desnutrição/etiologia , Desnutrição/terapia , Neoplasias/complicações , Apoio Nutricional/métodos , Humanos
7.
Clin Transl Oncol ; 20(2): 119-126, 2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-28593335

RESUMO

Despite the fact that thromboembolism is relatively common in oncology patients and that the interrelationship between thrombotic risk and specific mechanisms of tumorigenesis has long been known, many cardinal elements of prevention and treatment remain unresolved. Among the existing knowledge gaps, the need to validate the Ay scale and compare it to the Khorana index, develop, and standardize the use of predictive biomarkers for thrombotic risk, conduct clinical trials in thromboprophylaxis adapted to thrombotic risk, evaluate the efficacy and safety of direct anticoagulants, select patients who can benefit from anticoagulants for antitumor treatment, validate the EPIPHANY study decision tree to choose patients with low-risk pulmonary embolism, and accumulate more practical experience in special situations (rethrombosis, prolonged therapy beyond 6 months, etc.) are especially remarkable. These gray areas surrounding cancer-related thromboembolism explain why it continues to be a relatively common cause of serious events, at times interfering significantly with the development of new tumor-fighting strategies.


Assuntos
Anticoagulantes/uso terapêutico , Pesquisa Biomédica , Gerenciamento Clínico , Neoplasias/complicações , Trombose/tratamento farmacológico , Humanos , Trombose/etiologia
9.
Clin. transl. oncol. (Print) ; 19(3): 386-395, mar. 2017. tab, graf
Artigo em Inglês | IBECS | ID: ibc-160195

RESUMO

Purpose. The clinical index of stable febrile neutropenia (CISNE) can contribute to patient safety without increasing the complexity of decision-making. However, febrile neutropenia (FN) is a diverse syndrome. The aim of this analysis is to assess the performance of CISNE according to the type of tumor and infection and to characterize these patients. Methods. We prospectively recruited 1383 FN episodes in situations of apparent clinical stability. Bonferroni-adjusted z tests of proportions were used to assess the association between the infections suspected at the time of onset and the type of tumor with the risk of serious complications and mortality. The performance of CISNE was appraised in each category using the Breslow-Day test for homogeneity of odds ratios and Forest Plots. Results. 171 patients had a serious complication (12.3 %, 95 % confidence interval 10.7-14.2 %). The most common initial assumptive diagnoses were: fever without focus (34.5 %), upper respiratory infection (14.9 %), enteritis (12.7 %), stomatitis (11.8 %), and acute bronchitis (10.7 %). Lung and breast were the most common tumors, accounting for approximately 56 % of the series. The distribution of complications, mortality, and bacteremia varies for each of these categories. However, Breslow-Day tests indicate homogeneity of the odds ratio of the dichotomized CISNE score to predict complications in all infection and tumor subtypes. Conclusion. Despite FN’s clinical and microbiological heterogeneity, the CISNE score was seen to be consistent and robust in spite of these variations. Hence, it appears to be a safe tool in seemingly stable FN (AU)


No disponible


Assuntos
Humanos , Masculino , Feminino , Neutropenia Febril/complicações , Neutropenia Febril/diagnóstico , Infecções/classificação , Neoplasias/classificação , Neoplasias/complicações , Bacteriemia/complicações , Fatores de Risco , Metástase Neoplásica/tratamento farmacológico , Prognóstico , Estudos Prospectivos , Neutropenia Febril/mortalidade , Neutropenia Febril/fisiopatologia , Estudos de Coortes , Razão de Chances
11.
Clin Transl Oncol ; 19(4): 508-518, 2017 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-28005259

RESUMO

PURPOSE: The SEOM Future Plan is aimed at identifying the main challenges, trends and needs of the medical oncology speciality over the next years, including potential oncologist workforce shortages, and proposing recommendations to overcome them. METHODS: The estimations of the required medical oncologists workforce are based on an updated Medical Oncologist Register in Spain, Medical Oncology Departments activity data, dedication times and projected cancer incidence. Challenges, needs and future recommendations were drawn from an opinion survey and an advisory board. RESULTS: A shortage of 211 FTE medical oncologist specialists has been established. To maintain an optimal ratio of 158 new cases/FTE, medical oncology workforce should reach 1881 FTE by 2035. CONCLUSIONS: Main recommendations to face the growing demand and complexity of oncology services include a yearly growth of 2.5% of medical oncologist's workforce until 2035, and development and application of more accurate quality indicators for cancer care and health outcomes measure.


Assuntos
Necessidades e Demandas de Serviços de Saúde , Oncologia , Neoplasias/prevenção & controle , Oncologistas , Planejamento de Assistência ao Paciente/normas , Humanos , Espanha
12.
Clin Transl Oncol ; 19(3): 386-395, 2017 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-27525978

RESUMO

PURPOSE: The clinical index of stable febrile neutropenia (CISNE) can contribute to patient safety without increasing the complexity of decision-making. However, febrile neutropenia (FN) is a diverse syndrome. The aim of this analysis is to assess the performance of CISNE according to the type of tumor and infection and to characterize these patients. METHODS: We prospectively recruited 1383 FN episodes in situations of apparent clinical stability. Bonferroni-adjusted z tests of proportions were used to assess the association between the infections suspected at the time of onset and the type of tumor with the risk of serious complications and mortality. The performance of CISNE was appraised in each category using the Breslow-Day test for homogeneity of odds ratios and Forest Plots. RESULTS: 171 patients had a serious complication (12.3 %, 95 % confidence interval 10.7-14.2 %). The most common initial assumptive diagnoses were: fever without focus (34.5 %), upper respiratory infection (14.9 %), enteritis (12.7 %), stomatitis (11.8 %), and acute bronchitis (10.7 %). Lung and breast were the most common tumors, accounting for approximately 56 % of the series. The distribution of complications, mortality, and bacteremia varies for each of these categories. However, Breslow-Day tests indicate homogeneity of the odds ratio of the dichotomized CISNE score to predict complications in all infection and tumor subtypes. CONCLUSION: Despite FN's clinical and microbiological heterogeneity, the CISNE score was seen to be consistent and robust in spite of these variations. Hence, it appears to be a safe tool in seemingly stable FN.


Assuntos
Neutropenia Febril/etiologia , Neutropenia Febril/patologia , Infecções/complicações , Neoplasias/complicações , Índice de Gravidade de Doença , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Prospectivos , Adulto Jovem
13.
Clin Transl Oncol ; 19(2): 236-250, 2017 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-27443415

RESUMO

PURPOSE: Long-term cancer survivors develop special health issues and specific needs. Chronic pain, whether the consequence of their cancer or as a side effect of treatment, is one of their most prevalent concerns. METHODS: We conducted a review of the English-language literature on long-term cancer survivorship and chronic opioid therapy, with the objective of determining the efficacy, safety and tolerability in this group of patients. Practical management recommendations are made on the basis of this review. RESULTS: Pain syndromes encountered in the long-term cancer survivors are diverse. Opioid receptor pathways possess complex and pleiotropic functions and continuous over-activation may lead to de novo endocrinopathies, immunosuppression, neurocognitive impairment, or cell cycle disturbances with potential clinical connotations. However, there are insufficient data to support evidence-based decision making with respect to patient selection, doses, administration, monitoring and follow-up. Data about long-term treatment effectiveness and safety are limited and often aggravated by the overlapping of several diseases prevalent among long-term cancer survivors, as well as chronic opiate-induced toxicity. CONCLUSIONS: Chronic opioid therapy is frequent in long-term cancer survivors, and may negatively affect the immune system, and produce health problems such as endocrinopathies, osteoporosis, neurological or cardiopulmonary effects, alterations of cell cycle kinetics, abuse and addiction. This review highlights the need for specialized teams to treat chronic pain in long-term cancer survivors from an integrative perspective.


Assuntos
Analgésicos Opioides/uso terapêutico , Dor Crônica/tratamento farmacológico , Neoplasias/complicações , Sobreviventes , Dor Crônica/etiologia , Humanos , Neoplasias/fisiopatologia
14.
Clin Transl Oncol ; 18(12): 1243-1253, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-27896639

RESUMO

Bone metastases are common in many advanced solid tumours, being breast, prostate, thyroid, lung, and renal cancer the most prevalent. Bone metastases can produce skeletal-related events (SREs), defined as pathological fracture, spinal cord compression, need of bone irradiation or need of bone surgery, and hypercalcaemia. Patients with bone metastases experience pain, functional impairment and have a negative impact on their quality of life. Several imaging techniques are available for diagnosis of this disease. Bone-targeted therapies include zoledronic acid, a potent biphosfonate, and denosumab, an anti-RANKL monoclonal antibody. Both reduce the risk and/or delay the development of SREs in several types of tumours. Radium 233, an alpha-particle emitter, increases overall survival in patients with bone metastases from resistant castration prostate cancer. Multidisciplinary approach is essential and bone surgery and radiotherapy should be integrated in the treatment of bone metastases when necessary. This SEOM Guideline reviews bone metastases pathogenesis, clinical presentations, lab tests, imaging techniques for diagnosis and response assessment, bone-targeted agents, and local therapies, as radiation and surgery, and establishes recommendations for the management of patients with metastases to bone.


Assuntos
Neoplasias Ósseas , Neoplasias/patologia , Guias de Prática Clínica como Assunto , Neoplasias Ósseas/diagnóstico , Neoplasias Ósseas/secundário , Neoplasias Ósseas/terapia , Humanos , Espanha
15.
Clin Transl Oncol ; 18(12): 1237-1242, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-27896642

RESUMO

Chemotherapy-induced nausea and vomiting is one of the most worrisome adverse effects of chemotherapy for cancer patients. It can cause severe discomfort and affect the quality of life. In recent years, the incorporation of new drugs has increased the efficacy of antiemetic treatments in the control of emesis associated with chemotherapy. This guideline, in which we give some treatment recommendations with level of evidence and grade of recommendation, provides an update of the previously published guideline of the Spanish Society of Medical Oncology and represents our continued commitment to improving supportive care in cancer patients.


Assuntos
Antineoplásicos/efeitos adversos , Náusea/induzido quimicamente , Náusea/prevenção & controle , Guias de Prática Clínica como Assunto , Vômito/induzido quimicamente , Vômito/prevenção & controle , Humanos , Neoplasias/tratamento farmacológico , Qualidade de Vida , Espanha
16.
Clin Transl Oncol ; 18(6): 557-70, 2016 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-26577106

RESUMO

An expert group from the Spanish Society of Infectious Diseases and Clinical Microbiology (SEIMC, for its acronym in Spanish) and the Spanish Society of Medical Oncology (SEOM, for its acronym in Spanish) have reviewed the main aspects to be considered when evaluating patients with solid cancer and infectious complications contained in this article. Recommendations have, therefore, been put forth regarding the prophylaxis of the most prevalent infections in these patients, the use of vaccines, measures to control infection through vascular catheters, and preventing infection in light of certain surgical maneuvers. The following is a revision of the criteria for febrile neutropenia management and the use of colony-stimulating factors and closes with several guidelines for treating the cancer patient with serious infection. The document concludes with a series of measures to control hospital infection.


Assuntos
Neutropenia Febril Induzida por Quimioterapia/terapia , Infecções/complicações , Infecções/terapia , Neoplasias/complicações , Humanos , Espanha
17.
Clin Transl Oncol ; 17(12): 946-55, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26683474

RESUMO

Metastatic breast cancer is essentially an incurable disease. However, recent advances have resulted in a significant improvement of overall survival. The SEOM guidelines are intended to make evidence-based recommendations on how to manage patients with metastatic breast cancer to achieve the best patient outcomes based on a rational use of the currently available therapies. To assign a level of certainty and a grade of recommendation the United States Preventive Services Task Force guidelines methodology was selected as reference.


Assuntos
Neoplasias da Mama/secundário , Neoplasias da Mama/terapia , Oncologia , Guias de Prática Clínica como Assunto/normas , Sociedades Médicas , Terapia Combinada , Feminino , Humanos , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Prognóstico
18.
Clin Transl Oncol ; 16(12): 1060-6, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25319721

RESUMO

Androgen deprivation treatment is the current standard first-line treatment for metastatic prostate cancer. For several years, docetaxel was the only treatment with a proven survival benefit for castration-resistant prostate cancer (CRPC). Since docetaxel became standard of care for men with symptomatic metastatic castration-resistant prostate cancer (CRPC), three treatment virtual spaces, for treatment and drug development in CPRC, have emerged: pre-docetaxel, docetaxel combinations and post-docetaxel. Sipuleucel-T, cabazitaxel, abiraterone, enzalutamide and radium-223 have been approved in the pre- or post-docetaxel setting in metastatic CRPC during the last few years. Patients are now living longer and experiencing better quality of life. Strategies for patient selection and treatment sequencing are therefore urgently required.


Assuntos
Adenocarcinoma/tratamento farmacológico , Antineoplásicos/uso terapêutico , Neoplasias da Próstata/tratamento farmacológico , Humanos , Masculino
19.
Br J Cancer ; 108(12): 2565-72, 2013 Jun 25.
Artigo em Inglês | MEDLINE | ID: mdl-23722472

RESUMO

BACKGROUND: Owing to the limited validity of clinical data on the treatment of prostate cancer (PCa) and bone metastases, biochemical markers are a promising tool for predicting survival, disease progression and skeletal-related events (SREs) in these patients. The aim of this study was to evaluate the predictive capacity of biochemical markers of bone turnover for mortality risk, disease progression and SREs in patients with PCa and bone metastases undergoing treatment with zoledronic acid (ZA). METHODS: This was an observational, prospective and multicenter study in which ninety-eight patients were included. Patients were treated with ZA (4 mg every 4 weeks for 18 months). Data were collected at baseline and 3, 6, 9, 12, 15 and 18 months after the beginning of treatment. Serum levels of bone alkaline phosphtase (BALP), aminoterminal propeptide of procollagen type I (P1NP) and beta-isomer of carboxiterminal telopeptide of collagen I (ß-CTX) were analysed at all points in the study. Data on disease progression, SREs development and survival were recorded. RESULTS: Cox regression models with clinical data and bone markers showed that the levels of the three markers studied were predictive of survival time, with ß-CTX being especially powerful, in which a lack of normalisation in visit 1 (3 months after the beginning of treatment) showed a 6.3-times more risk for death than in normalised patients. Levels of these markers were also predictive for SREs, although in this case BALP and P1NP proved to be better predictors. We did not find any relationship between bone markers and disease progression. CONCLUSION: In patients with PCa and bone metastases treated with ZA, ß-CTX and P1NP can be considered suitable predictors for mortality risk, while BALP and P1NP are appropriate for SREs. The levels of these biomarkers 3 months after the beginning of treatment are especially important.


Assuntos
Neoplasias Ósseas/tratamento farmacológico , Neoplasias Ósseas/secundário , Remodelação Óssea , Difosfonatos/uso terapêutico , Imidazóis/uso terapêutico , Neoplasias da Próstata/mortalidade , Neoplasias da Próstata/patologia , Idoso , Idoso de 80 Anos ou mais , Biomarcadores/análise , Biomarcadores/sangue , Biomarcadores/metabolismo , Conservadores da Densidade Óssea/uso terapêutico , Neoplasias Ósseas/diagnóstico , Neoplasias Ósseas/mortalidade , Remodelação Óssea/efeitos dos fármacos , Remodelação Óssea/fisiologia , Progressão da Doença , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Prognóstico , Neoplasias da Próstata/diagnóstico , Neoplasias da Próstata/tratamento farmacológico , Fatores de Risco , Análise de Sobrevida , Ácido Zoledrônico
20.
Pain Manag ; 1(6): 513-22, 2011 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-24645762

RESUMO

UNLABELLED: SUMMARY  AIM: This study evaluated health outcomes in patients with cancer pain during treatment with transdermal buprenorphine, including quality of life, effectiveness, tolerability, and functional consequences for patients and their carers. METHODS: In this 3-month, noncomparative, multicenter, observational study performed in a normal clinical practice setting in Spain, patients received transdermal buprenorphine 37, 52.5 or 70 µg/h, with patches changed every 96 h. The effect of transdermal buprenorphine on quality of life (primary study focus) was assessed using the Visual Analog Scale (VAS) component of the EuroQol 5 Dimensions™ (EQ-5D). In addition, pain (assessed using the Brief Pain Inventory - Short Form [BPI-SF] and VAS-pain), the impact of pain on patients and carers (assessed using the Beck Depression Inventory, sleep quality analysis, VAS-patient limitation, VAS-carer limitation and the Palliative Care Scale), patient's use of health resources, patient satisfaction, and tolerability, were evaluated. RESULTS: Of 116 patients entering the study, 42 completed the 3-month study period. Five patients withdrew due to adverse events. The two main reasons for study discontinuation were nontreatment-related death (27.1%) and lost to follow-up (18.8%). The mean age was 62.9 years and the mean baseline duration of pain was 7.78 weeks. In the month prior to starting transdermal buprenorphine, 80% of patients had received at least one nonopioid analgesic medication; 21% had received an opioid analgesic (most commonly tramadol). The most common dose of transdermal buprenorphine used was 35 µg/h. The mean improvement from baseline in the EQ-5D VAS score among 65 patients with data was 15.20 ± 24.96 (p < 0.0001). EQ-5D descriptive parameters also improved during the study (not statistically significant). Mean improvements in BPI scores for worst pain (3.76) and average pain (3.03) were significant (p < 0.0001). The other measures of pain relief also supported transdermal buprenorphine as an effective analgesic. Sleep quality improved during the study. VAS scores (100 mm scale) for patient limitation and caregiver burden due to pain improved, with a significant mean change in VAS-carer limitation score (30.34; p < 0.0001). Adverse events were reported by ten (8.6%) patients, most commonly affecting the gastrointestinal system (vomiting [4.3% of patients], nausea [2.6%] and constipation [0.9%]). The majority of patients reported satisfaction with their analgesic treatment. CONCLUSIONS: In this observational study in normal clinical practice, transdermal buprenorphine provided effective pain relief and was generally well tolerated by patients with cancer pain. It also improved quality of life for patients and reduced caregiver burden. Considering the high number of study discontinuations (mainly due to nontreatment-related death and lost to follow-up), the results of this study need to be evaluated with caution.

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