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INTRODUCTION: Cutaneous squamous cell carcinoma (cSCC) and basal cell carcinoma (BCC) belong to the group of keratinocyte carcinomas (KC). Actinic keratosis (AK) is a precursor lesion of cSCC. The incidences of cSCC, BCC, and AK are currently strongly increasing. Different standard therapies exist for these conditions but are not always applicable or successful. Hydrophilic Viscum album extracts have been used in anthroposophic cancer therapy since 1917. Viscum album lipophilic extract (VALE) is prepared by means of supercritical CO2 extraction. This retrospective case series assessed the safety and clinical effects of a topical application of 10% VALE in individual cases of cSCC, BCC, and AK. METHODS: For this retrospective case series, a positive vote was obtained from the Ethics Committee of the University of Witten/Herdecke (No. 146/2020). Eligible patients signed a declaration of consent prior to inclusion in the study. The main outcome parameters were the clinical response to treatment with VALE and adverse drug reactions. Risk factors, concomitant therapies and diseases, further diagnostic and therapeutic information were documented where available. Data analysis was performed on the level of patients and of individual lesions. RESULTS: The study population consisted of 55 patients with 74 skin lesions. Individual case analysis accompanied by photographic documentation revealed typical and promising treatment courses. Clinical response rates (complete + partial remissions) for individual lesions were 78% for cSCC, 70% for BCC, and 71% for AK. Complete remission rates for individual lesions were 56% for cSCC, 35% for BCC, and 15% for AK. In cSCC and BCC, shorter times to best clinical response were observed. Adverse drug reactions were reported in 5 patients including erythema and inflammatory reactions of mostly moderate severity that resolved completely. In one case, therapy was temporarily paused, in four cases it was continued without interruption. DISCUSSION/CONCLUSION: The results of this study suggest that VALE is a safe and tolerable extract under whose application complete and partial remissions of KC could be observed. To improve and assess the efficacy of VALE, prospective investigations are necessary.
Subject(s)
Carcinoma, Basal Cell , Carcinoma, Squamous Cell , Keratosis, Actinic , Plant Extracts , Skin Neoplasms , Viscum album , Humans , Retrospective Studies , Plant Extracts/therapeutic use , Carcinoma, Basal Cell/drug therapy , Male , Skin Neoplasms/drug therapy , Viscum album/chemistry , Female , Carcinoma, Squamous Cell/drug therapy , Aged , Keratosis, Actinic/drug therapy , Middle Aged , Aged, 80 and overABSTRACT
BACKGROUND: Few measurements of fatigue and quality of life have been performed during neoadjuvant chemotherapy of early breast cancer. This study evaluates fatigue and quality of life experienced by early breast cancer patients during neoadjuvant chemotherapy and their association with different clinical parameters. METHODS: Fifty-four stage I-III patients' responses to the Multidimensional Fatigue Inventory (MFI) and to the Functional Assessment of Cancer Therapy-Breast (FACT-B) were analyzed by a linear covariance pattern model. Chemotherapy regimen, age, baseline fatigue level, body-mass-index and cancer stage were added to the model to estimate their impact on both outcomes. RESULTS: All fatigue dimensions worsened in clinically relevant levels. Physical fatigue worsened the most, mental fatigue the least. For quality of life, physical and functional well-being worsened the most. Only emotional well-being improved during chemotherapy. Physical well-being worsened more during standard than during dose-dense chemotherapy, and more during anthracycline than during taxane cycles. Age, body-mass-index and cancer stage had no impact. The higher the fatigue levels at baseline, the less they worsened during chemotherapy. CONCLUSIONS: Further actions to reduce fatigue and improve quality of life during neoadjuvant chemotherapy of early breast cancer are needed. Focus should be laid on the physical dimension. Future research should also investigate the impact of different chemotherapy sequences and densities on fatigue and quality of life. STUDY REGISTRATION: The study was registered in the German Clinical Trials Register in May 2019 (DRKS00016761).
Subject(s)
Breast Neoplasms , Humans , Female , Breast Neoplasms/psychology , Quality of Life , Neoadjuvant Therapy/adverse effects , Prospective Studies , Chemotherapy, Adjuvant/adverse effects , Antineoplastic Combined Chemotherapy Protocols/adverse effectsABSTRACT
OBJECTIVES: Evaluate the safety and clinical response of complementary treatment with European mistletoe extracts during chemotherapy. DESIGN: Monocentric controlled trial with 95 patients randomized into three groups. SETTINGS/LOCATION: National Cancer Research Center of Serbia. SUBJECTS: Breast cancer patients (stage T1-3N0-2M0) undergoing surgery and adjuvant chemotherapy with six cycles of cyclophosphamide, adriamycin, and 5-fluorouracil. INTERVENTIONS: Two different European mistletoe extracts (Helixor A, Iscador M Spez) were injected three times per week during 18 weeks of chemotherapy in the mistletoe group. Five-year follow-up of routine visits was documented in case report forms. OUTCOME MEASURES: Safety was assessed by measuring adverse events, body temperature during chemotherapy, and probability of relapse or metastasis in a 5-year follow-up. During chemotherapy, the neutrophil count and quality of life according to EORTC QLQ-C30 were assessed. RESULTS: The two patient groups receiving different complementary mistletoe treatments were integrated into one mistletoe group for this safety analysis. Patients in the mistletoe group did not develop more fever symptoms than patients in the control group (two short-term events in each group). No significant differences in probability of relapse or metastasis were measured between the groups (p = 0.7637). The mistletoe group showed a trend toward less neutropenia (p = 0.178) and improved pain and appetite loss scores (p < 0.0001 and p = 0.047, respectively) while having positive, but not significant, impact on other EORTC QLQ-C30 scores. CONCLUSIONS: Mistletoe extracts were safe in this clinical study. Neither did subcutaneous injections induce fever, nor did they influence the frequency of relapse and metastasis within 5 years. This result suggests that mistletoe extracts had no adverse interactions with the anticancer agents used in this study. Furthermore, certain side effects of chemotherapy decreased under this complementary treatment in breast cancer patients.
Subject(s)
Antineoplastic Agents , Breast Neoplasms/drug therapy , Phytotherapy , Plant Extracts , Viscum album , Adult , Antineoplastic Agents/adverse effects , Antineoplastic Agents/therapeutic use , Body Temperature , Breast Neoplasms/epidemiology , Breast Neoplasms/mortality , Disease-Free Survival , Female , Follow-Up Studies , Humans , Middle Aged , Neutropenia , Pain , Plant Extracts/adverse effects , Plant Extracts/therapeutic use , Quality of LifeABSTRACT
BACKGROUND: Mistletoe extracts have anti-tumor properties and are approved for subcutaneous use in cancer patients. Data on Intravenous application are limited. METHODS: An aqueous extract from pine-mistletoe was used to investigate maximum tolerable dose (MTD) and safety of intravenous application. It was infused once weekly for 3 weeks in patients with advanced cancer. Any type of cancer was included; relevant exclusion criteria were concurrent chemo- or radiation therapy. The classical phase I 3 + 3 dose escalation scheme was followed. Predefined dose groups were 200, 400, 700, 1200 and 2000 mg. Maximum planned dose was 2000 mg. With the MTD three more patients should be treated for 9 weeks in order to evaluate intermediate term tolerability. Weekly during the treatment and 1 week later tolerability, clinical status, safety laboratory parameters and adverse events were documented. RESULTS: Twenty-one patients (3 in the dose groups 200, 400, 700 and 1200 mg, respectively, 9 in the dose group 2000 mg) were included. MTD was not reached. Because one dose-limiting toxicity (DLT), an allergic reaction, occurred during infusion of 2000 mg, three more patients had to be included in this dose group and tolerated it, as well as the three patients who received 2000 mg for 9 weeks. Occasionally in the dose group 2000 mg mild to moderate fever occurred. CONCLUSION: Weekly infusions of 2000 mg of the pine-mistletoe extract were tolerated and can be used in further studies but had a risk for allergic reactions and fever. German Clinical Trials Register (Trial registration number DRKS00005028).
Subject(s)
Antineoplastic Agents, Phytogenic/administration & dosage , Mistletoe/chemistry , Neoplasms/drug therapy , Plant Extracts/administration & dosage , Adult , Aged , Antineoplastic Agents, Phytogenic/adverse effects , Dose-Response Relationship, Drug , Female , Germany , Humans , Infusions, Intraventricular , Male , Middle Aged , Neoplasms/immunology , Plant Extracts/adverse effects , Prospective StudiesABSTRACT
BACKGROUND: The treatment of cancer patients with mistletoe extract is said to prolong their survival and, above all, improve their quality of life. We studied whether the quality of life of patients with advanced pancreatic cancer could be improved by mistletoe extract. METHOD: An open, single-center, group-sequential, randomized phase III trial (ISRCTN70760582) was conducted. From January 2009 to December 2010, 220 patients with locally advanced or metastatic pancreatic cancer who were receiving no further treatment for pancreatic cancer other than best supportive care were included in this trial. They were stratified by prognosis and randomly allocated either to a group that received mistletoe treatment or to one that did not. Mistletoe extract was given in escalating doses by subcutaneous injection three times a week. The planned interim evaluation of data from 220 patients indicated that mistletoe treatment was associated with longer overall survival, and the trial was terminated prematurely. After termination of the study, the results with respect to quality of life (assessed with the QLO-C30 scales of the European Organisation for Research and Treatment of Cancer) and trends in body weight were evaluated. RESULTS: Data on quality of life and body weight were obtained from 96 patients treated with mistletoe and 72 control patients. Those treated with mistletoe did better on all 6 functional scales and on 7 of 9 symptom scales, including pain (95% confidence interval [CI] -29 to -17), fatigue (95% CI -36.1 to -25.0), appetite loss (95% CI -51 to -36.7), and insomnia (95% CI -45.8 to -28.6). This is reflected by the trend in body weight during the trial. CONCLUSION: In patients with locally advanced or metastatic pancreatic carcinoma, mistletoe treatment significantly improves the quality of life in comparison to best supportive care alone. Mistletoe is an effective second-line treatment for this disease.
Subject(s)
Mistletoe/chemistry , Pain/epidemiology , Pancreatic Neoplasms/drug therapy , Pancreatic Neoplasms/psychology , Phytotherapy/methods , Plant Extracts/therapeutic use , Quality of Life/psychology , Aged , Aged, 80 and over , Causality , Comorbidity , Humans , Middle Aged , Pain/prevention & control , Pain/psychology , Pancreatic Neoplasms/mortality , Prevalence , Risk Factors , Serbia/epidemiology , Survival Rate , Treatment OutcomeABSTRACT
Anthroposophic medicine is a physician-provided complementary therapy system that was founded by Rudolf Steiner and Ita Wegman. Anthroposophic therapy includes special medicinal products, artistic therapies, eurythmy movement exercises, and special physical therapies. The Anthroposophic Medicine Outcomes Study (AMOS) was a prospective observational multicenter study of 1631 outpatients starting anthroposophic therapy for anxiety disorders, asthma, attention deficit hyperactivity disorder, depression, low back pain, migraine, and other chronic indications under routine conditions in Germany. AMOS INCORPORATED TWO FEATURES PROPOSED FOR THE EVALUATION OF INTEGRATIVE THERAPY SYSTEMS: (1) a sequential approach, starting with the whole therapy system (use, safety, outcomes, perceived benefit), addressing comparative effectiveness and proceeding to the major system components (physician counseling, anthroposophic medicinal products, art therapy, eurythmy therapy, rhythmical massage therapy) and (2) a mix of different research methods to build an information synthesis, including pre-post analyses, prospective comparative analyses, economic analyses, and safety analyses of individual patient data. AMOS fostered two methodological innovations for the analysis of single-arm therapy studies (combined bias suppression, systematic outcome comparison with corresponding cohorts in other studies) and the first depression cost analysis worldwide comparing primary care patients treated for depression vs depressed patients treated for another disorder vs nondepressed patients. A total of 21 peer-reviewed publications from AMOS have resulted. This article provides an overview of the main research questions, methods, and findings from these publications: anthroposophic treatment was safe and was associated with clinically relevant improvements in symptoms and quality of life without cost increase; improvements were found in all age, diagnosis, and therapy modality groups and were retained at 48-month follow-up; nonrespondent bias, natural recovery, regression to the mean, and adjunctive therapies together could explain a maximum of 37% of the improvement.
La medicina antroposófica es un sistema terapéutico complementario proporcionado por el médico que fue fundada por Rudolf Steiner e Ita Wegman. La terapia antroposófica incluye productos medicinales especiales, terapias artísticas, ejercicios de movimiento eurítmico y terapias físicas especiales. El estudio de los resultados de la medicina antroposófica (Anthroposophic Medicine Outcomes Study, AMOS) consistió en un estudio prospectivo observacional multicéntrico de 1631 pacientes ambulatorios que comenzaban la terapia antroposófica para trastornos de ansiedad, asma, trastorno de hiperactividad y déficit de atención, depresión, dolor lumbar, migraña y otras indicaciones crónicas bajo condiciones rutinarias en Alemania.AMOS incorporaba dos características propuestas para la evaluación de sistemas terapéuticos integrales: (1) un enfoque secuencial, comenzando con el sistema terapéutico completo (uso, seguridad, resultados, ventaja percibida), que aborda la eficacia comparativa y continúa con los componentes principales del sistema (asesoramiento del médico, productos medicinales antroposóficos, terapia artística, terapia eurítmica, terapia de masaje rítmico) y (2) una combinación de diferentes métodos de investigación para crear una síntesis de información, que incluye análisis previos y posteriores, análisis comparativos prospectivos, análisis económicos y análisis de la seguridad de los datos del paciente individual. AMOS fomentaba dos innovaciones metodológicas para el análisis de los estudios terapéuticos de un grupo único (supresión del sesgo combinado, comparación sistemática de resultados con las cohortes correspondientes en otros estudios) y el primer análisis a nivel mundial del coste de la depresión comparando pacientes de atención primaria tratados de depresión frente a pacientes deprimidos tratados por otro trastorno frente a pacientes no deprimidos.Ha resultado en un total de 21 publicaciones revisadas por expertos de AMOS. Este artículo proporciona una visión general de las principales cuestiones de investigación, métodos y los resultados de estas publicaciones: el tratamiento antroposófico era seguro y se asociaba a mejoras clínicamente relevantes en los síntomas y la calidad de vida sin aumento de los costes; se observaron mejoras en todos los grupos de edad, diagnóstico y modalidad de terapia y se mantuvieron en el seguimiento de 48 meses; el sesgo ajeno a los entrevistados, la recuperación natural, la regresión a la media y las terapias adyuvantes juntos podían explicar un máximo del 37 % de la mejoría.
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Background. Breast cancer patients receiving adjuvant chemotherapy often experience a loss of quality of life. Moreover chemotherapy may induce neutropenia. Patients report a better quality of life when additionally treated with mistletoe products during chemotherapy. Methods. In this prospective randomized open-label pilot study 95 patients were randomized into three groups. All patients were treated with an adjuvant chemotherapy. The primary objective of the study was quality of life, the secondary objective was neutropenia. Here we report the comparison of HxA (n = 34) versus untreated control (n = 31). Results. In the explorative analysis ten of 15 scores of the EORTC QLQ-C30 showed a better quality of life in the HxA group compared to the control group (P < 0.001 to P = 0.038 in Dunnett-T3 test). The difference was clinically relevant (difference of at least 5 points, range 5.4-12.2) in eight of the ten scores. Neutropenia occurred in 7/34 HxA patients and in 8/31 control patients (P = 0.628). Conclusions. This pilot study showed an improvement of quality of life by treating breast cancer patients with HxA additionally to CAF. Although the open design may be a limitation, the findings show the feasibility of a confirmatory study using the methods described here.
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Additional therapy with extracts of Viscum album [L.] (VaL) increases the quality of life of patients suffering from early stage breast cancer during chemotherapy. In the current study patients received chemotherapy, consisting of six cycles of cyclophosphamide, anthracycline, and 5-Fluoro-Uracil (CAF). Two groups also received one of two VaL extracts differing in their preparation as subcutaneous injection three times per week. A control group received CAF with no additional therapy. Six of 28 patients in one of the VaL groups and eight of 29 patients in the control group developed relapse or metastasis within 5 years. Subgroup analysis for hormone- and radiotherapy also showed no difference between groups. Additional VaL therapy during chemotherapy of early stage breast cancer patients appears not to influence the frequency of relapse or metastasis within 5 years.
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BACKGROUND: Pulpa dentis D30 (PD: dental pulp of the calf, prepared in a homeopathic D30 potency) has been used in acute reversible pulpitis for pain relief and to avoid or postpone invasive dental treatment. PRIMARY STUDY OBJECTIVE: To study short-term clinical outcomes of PD therapy for acute reversible pulpitis in routine dental practice. METHODS/DESIGN: Prospective, observational, open-label, single-arm cohort study. SETTING: Eleven dental primary care practices in Germany. PARTICIPANTS AND INTERVENTION: Thirty-two patients starting monotherapy with PD for acute reversible pulpitis without visible or radiological abnormalities. PD was applied as 1-mL submucous injections into the mucobuccal fold, repeated daily as needed. PRIMARY OUTCOME MEASURES: Avoidance of invasive dental treatment (pulp capping, root canal therapy, tooth extraction) and remission of pain, measured on a 0-10 point scale (partial remission: reduction by > or =3 points; complete remission: reduction from > or =4 points to 0-1 points) during the 10-day follow-up period. RESULTS: Median pain duration was 14.0 days. The patients received a median of two PD applications (range 1-7). A total of 81% (n=26/32) of patients did not require invasive dental treatment, and 19% (n= 6) had root canal therapy. Remission status was evaluable in 24 patients. Of these, 63% (n = 15/24) achieved pain remission, 58% (n = 14) remitted without invasive dental treatment (complete remission: n=12, partial remission: n=2), and 29% (n= 7) had a close temporal relationship between PD and remission (ratio "time to remission after first PD application vs pain duration prior to first PD application" <1:10). CONCLUSION: In this study of PD for acute reversible pulpitis, 58% of evaluable patients achieved pain remission without invasive dental treatment. The open-label pre-post design does not allow for conclusions about comparative effectiveness. However, more than one-fourth of evaluable patients remitted with a close temporal relationship between the first PD application and pain remission, suggesting a causal relationship between therapy and remission.
Subject(s)
Dental Care/methods , Homeopathy/methods , Pain Management , Pulpitis/therapy , Acute Disease , Adult , Animals , Cattle , Cohort Studies , Dental Pulp , Female , Humans , Male , Middle Aged , Pain/etiology , Pain Measurement , Prospective Studies , Pulpitis/complications , Single-Blind Method , Treatment Outcome , Young AdultABSTRACT
BACKGROUND: Chemotherapy for breast cancer often deteriorates quality of life, augments fatigue, and induces neutropenia. Mistletoe preparations are frequently used by cancer patients in Central Europe. Physicians have reported better quality of life in breast cancer patients additionally treated with mistletoe preparations during chemotherapy. Mistletoe preparations also have immunostimulant properties and might therefore have protective effects against chemotherapy-induced neutropenia. PATIENTS AND METHODS: We conducted a prospective randomized open label pilot study with 95 patients randomized into three groups. Two groups received Iscador® M special (IMS) or a different mistletoe preparation, respectively, additionally to chemotherapy with six cycles of cyclophosphamide, adriamycin, and 5-fluoro-uracil (CAF). A control group received CAF with no additional therapy. Here we report the comparison IMS (n = 30) vs. control (n = 31). Quality of life including fatigue was assessed with the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC-QLQ-C30). Neutropenia was defined as neutrophil counts <1,000/µl and assessed at baseline and one day before each CAF cycle. RESULTS: In the descriptive analysis all 15 scores of the EORTC-QLQ-C30 showed better quality of life in the IMS group compared to the control group. In 12 scores the differences were significant (p < 0.02) and nine scores showed a clinically relevant and significant difference of at least 5 points. Neutropenia occurred in 3/30 IMS patients and in 8/31 control patients (p = 0.182). CONCLUSIONS: This pilot study showed an improvement of quality of life by treating breast cancer patients with IMS additionally to CAF. CAF-induced neutropenia showed a trend to lower frequency in the IMS group.
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BACKGROUND: In a previous study a decline of T-lymphocyte function was observed within a 6-month period of Viscum album extract (VA-E) application which did not occur in those patients with dose adaptation in response to strong local reactions (LR) or in those with moderate LR. To further investigate the immunological prerequisites of these differences in the VA-E susceptibilities, an analysis was carried out of the pre-existing differences in the tumor patients' lymphocyte subsets, and of whether the LR pattern (none, moderate, strong) might be associated with distinct aspects of the patients' quality of life. PATIENTS AND METHODS: Seventy-one cancer patients were subcutaneously treated with VA-E (Iscador) at increasing concentrations and their lymphocyte subsets measured by flowcytometry during a 6 month observation period; quality of life was assessed with the HLQ questionnaire. RESULTS: The occurrence of stronger LR was associated with a primarily higher level of T-cells and their CD4+ T-helper/inducer subset, and CD25+ respectively HLA-DR+ (activated) T-cells. Moreover, counts or proportions of T-cells, CD4+ T-helper/inducer cells and CD8+ CD28+ cytotoxic cells were lower, while the relative proportions of CD8+ CD28- suppressor cells, B- and NK-cells were the highest in the group with moderate LR. In particular, this latter group had a significantly higher quality of life. CONCLUSION: Our results indicate that the induction of moderate LR in response to VA-E application was associated with better T cell function and quality of life. Extracts from Viscum album (VA-E) are widely used as a
Subject(s)
Antineoplastic Agents, Phytogenic/therapeutic use , Neoplasms/drug therapy , Neoplasms/immunology , Phytotherapy/methods , Plant Extracts/therapeutic use , Plant Proteins/therapeutic use , T-Lymphocyte Subsets/drug effects , Viscum album/chemistry , Female , HLA-DR Antigens/immunology , Humans , Interleukin-2 Receptor alpha Subunit/metabolism , Lymphocyte Activation/drug effects , Male , Quality of Life , T-Lymphocytes/drug effects , T-Lymphocytes/immunologyABSTRACT
BACKGROUND: When a therapy has been evaluated in the first clinical study, the outcome is often compared descriptively to outcomes in corresponding cohorts receiving other treatments. Such comparisons are often limited to selected studies, and often mix different outcomes and follow-up periods. Here we give an example of a systematic comparison to all cohorts with identical outcomes and follow-up periods. METHODS: The therapy to be compared (anthroposophic medicine, a complementary therapy system) had been evaluated in one single-arm cohort study: the Anthroposophic Medicine Outcomes Study (AMOS). The five largest AMOS diagnosis groups (A-cohorts: asthma, depression, low back pain, migraine, neck pain) were compared to all retrievable corresponding cohorts (C-cohorts) receiving other therapies with identical outcomes (SF-36 scales or summary measures) and identical follow-up periods (3, 6 or 12 months). Between-group differences (pre-post difference in an A-cohort minus pre-post difference in the respective C-cohort) were divided with the standard deviation (SD) of the baseline score of the A-cohort. RESULTS: A-cohorts (5 cohorts with 392 patients) were similar to C-cohorts (84 cohorts with 16,167 patients) regarding age, disease duration, baseline affection and follow-up rates. A-cohorts had > or = 0.50 SD larger improvements than C-cohorts in 13.5% (70/517) of comparisons; improvements of the same order of magnitude (small or minimal differences: -0.49 to 0.49 SD) were found in 80.1% of comparisons; and C-cohorts had > or = 0.50 SD larger improvements than A-cohorts in 6.4% of comparisons. Analyses stratified by diagnosis had similar results. Sensitivity analyses, restricting the comparisons to C-cohorts with similar study design (observational studies), setting (primary care) or interventions (drugs, physical therapies, mixed), or restricting comparisons to SF-36 scales with small baseline differences between A- and C-cohorts (-0.49 to 0.49 SD) also had similar results. CONCLUSION: In this descriptive analysis, anthroposophic therapy was associated with SF-36 improvements largely of the same order of magnitude as improvements following other treatments. Although these non-concurrent comparisons cannot assess comparative effectiveness, they suggest that improvements in health status following anthroposophic therapy can be clinically meaningful. The analysis also demonstrates the value of a systematic approach when comparing a therapy cohort to corresponding therapy cohorts.
Subject(s)
Anthroposophy , Chronic Disease/therapy , Cohort Studies , Humans , Outcome Assessment, Health CareABSTRACT
BACKGROUND: Major surgery suppresses natural killer (NK) cell cytotoxic activity which is potentially harmful for cancer patients by favouring haematogenic tumour cell dissemination. The influence of a perioperative infusion of a standardized mistletoe extract (Iscador) on immune functions was tested in a prospective, sequential, randomized clinical trial. PATIENTS AND METHODS: Colorectal cancer patients undergoing open tumour resection were randomly assigned to either mistletoe infusion or no additional therapy. We hypothesized that mistletoe infusion improves NK cell activity and increases expression of MHC class II antigen HLA-DR on monocytes 24 h and 7 days after surgery, respectively. For statistical analysis we used a sequential study design. The decision boundaries for the two triangular tests were calculated for altogether 62 patients. RESULTS: The sequential study design allowed stopping the recruitment prematurely. NK cell activity differed significantly between the therapy groups 24 h after surgery (p = 0.027). The absolute number of HLA-DR molecules on monocytes did not differ 7 days after surgery. NK cell activity of patients treated with mistletoe extract did not change significantly during the course of the study (-7.9% 24 h after surgery), whereas HLA-DR expression changed significantly (-38.5% at day 7 after surgery). For control patients both parameters decreased significantly after surgery (NK cell activity: -44.4% at 24 h; HLA-DR expression: -32.9% at day 7 after surgery). CONCLUSION: Perioperative infusion of mistletoe extracts can prevent a suppression of NK cell activity in cancer patients. The impact of this therapy on relapse and survival should be tested in further studies.
Subject(s)
Colorectal Neoplasms/drug therapy , Colorectal Neoplasms/surgery , Killer Cells, Natural/immunology , Mistletoe/chemistry , Phytotherapy , Plant Extracts/therapeutic use , Aged , Colorectal Neoplasms/immunology , Female , Humans , Infusions, Parenteral , Killer Cells, Natural/drug effects , Male , Perioperative Care/methods , Postoperative Complications/immunology , Postoperative Complications/prevention & control , Prospective Studies , Treatment OutcomeABSTRACT
BACKGROUND AND OBJECTIVE: Anthroposophic medications (AMED) are prescribed by physicians in 56 countries worldwide and are used for the treatment of a variety of conditions. However, safety data on long-term use of AMED from large prospective studies are sparse. The objective of this analysis was to determine the frequency of patient-reported and physician-assessed adverse drug reactions (ADRs) to AMED in outpatients using AMED for chronic diseases over a 2-year period. METHODS: We conducted a prospective observational cohort study involving 131 medical practices in Germany. In total, 662 consecutive outpatients aged 1-75 years were enrolled in the study. The patients were using AMED for mental (primarily depression and fatigue), musculoskeletal, respiratory, neurological and other chronic diseases. Main outcome measures were use of AMED and ADRs to AMED. RESULTS: Throughout the 2-year follow-up, patients used 949 different AMED for a total of 11 487 patient-months. The origin of AMED was mineral (8.1%, 77 of 949 AMED), botanical (41.8%), zoological (7.8%), chemically defined (10.5%) and mixed (31.7%). Most frequently used AMED ingredients were Viscum album (11.5%, 76 of 662 patients), Bryophyllum (9.4%), Arnica (7.9%) and Silicea (7.7%). Non-AMED products were used by 94.2% of patients for a total of 11 202 patient-months; 45.2% of this use was accounted for by medication for the CNS, the cardiovascular system and the alimentary tract and metabolism. A total of 1861 adverse events (AEs) were documented. The most frequent AEs were non-specific symptoms, signs and findings (International Classification of Diseases [10th Edition] R00-R99: 27.6%, 513 of 1861 AEs), musculoskeletal (M00-M99: 16.9%), respiratory (J00-J99: 8.2%) and digestive diseases (K00-K93: 6.6%). No serious AEs attributable to any medication occurred. Out of the 1861 reported AEs, 284 (15.3%) AEs were suspected by the physician or the patient to be an adverse reaction to non-medication therapy (n = 42 AEs), non-AMED (n = 187) or AMED (n = 55 AEs in 29 patients). Twenty of these 29 patients had confirmed ADRs to 21 AMED. These ADRs were local reactions to topical application (n = 6 patients), systemic hypersensitivity (n = 1) and aggravation of pre-existing symptoms (n = 13). In ten patients, AMED was stopped due to ADRs; two patients had ADRs of severe intensity. Median number of days with ADRs was 7 (range 1-39 days). All ADRs subsided, none were serious. The frequency of confirmed ADRs to AMED was 2.2% (21 of 949) of all different AMED used, 3.0% (20 of 662) of AMED users and one ADR per 382 patient-months of AMED use. CONCLUSION: In this 2-year prospective study, AMED therapy was generally well tolerated.
Subject(s)
Complementary Therapies , Drug Therapy , Drug-Related Side Effects and Adverse Reactions , Phytotherapy , Adolescent , Adult , Adverse Drug Reaction Reporting Systems , Aged , Child , Child, Preschool , Chronic Disease , Cohort Studies , Drug Hypersensitivity/epidemiology , Female , Follow-Up Studies , Germany/epidemiology , Humans , Infant , Male , Middle Aged , Plant Preparations/adverse effects , Plant Preparations/therapeutic use , Prospective Studies , Treatment OutcomeABSTRACT
BACKGROUND: Suppression of NK cell activity is considered to be an unfavourable prognostic factor for tumour progression. There is proof that mistletoe extracts may increase NK cell activity. However, the inverse relation between an increase of NK cell activity and clinical progress of cancer has not been investigated. AIM AND DESIGN: The relation of NK cell activity and progress of cancer in patients under therapy with mistletoe extracts was examined in a prospective, monocentric, cohort study. At the same time the in vitro killing of K562 cells and autologous tumour cells was compared. PATIENTS AND METHODS: 40 patients with operable cancer of the breast or colon were included. The patients did not receive any immunologically relevant therapies except for mistletoe extracts. The absolute NK cell count in peripheral blood as well as the in vitro NK cell activity were monitored for up to 2 years and compared with clinical outcome as well as quality of life. RESULTS: The absolute NK cell count in peripheral blood increased within the observation period. Patients without progression had a significantly higher mean activity of NK cells against K562 cells than patients with progression. In the latter group, only stage IV patients showed reduced NK cell activity. The killing activity against autologous tumour cells was <5% in about 77.5% of the patients and could not be evaluated further. The NK cell activity against K562 cells was not related to the number of NK cells. CONCLUSIONS: We found a relation between NK cell activity and the progression of malignant disease. In further studies the causality of this relation has to be clarified. The establishment of NK cell activity against autologous tumour cells as a suitable parameter during follow-up was not successful.
