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Deprivation Therapy (deprivation + therapy)
Kinds of Deprivation Therapy Selected AbstractsPrediction of organ-confined disease by prostate-specific antigen nadir after neoadjuvant therapyINTERNATIONAL JOURNAL OF UROLOGY, Issue 11 2000Takahiko Hachiya Abstract Background It is not clear whether or not serum prostate-specific antigen (PSA) levels after androgen deprivation prior to radical prostatectomy (neoadjuvant therapy) have any value in the prediction of the final pathologic stage. Methods We conducted a study on 49 patients who underwent retropubic radical prostatectomy following neoadjuvant therapy for clinical stage T1c, T2, and T3a prostate cancer. We evaluated progression-free survival based on the PSA failure rate and the predictive value of the PSA nadir after neoadjuvant therapy and other clinical factors to determine the most important predictor of organ confinement. Results Of the 49 patients, 30 had organ-confined disease. Of 31 patients without adjuvant therapy after surgery, the PSA failure-free rates at 2 years were 81.6 and 34.3% in the subset of organ-confined disease and non-organ-confined disease, respectively (P = 0.0031). Of the 18 patients with adjuvant androgen deprivation therapy after surgery, the PSA failure-free rate at 2 years was 100% and 59.7% in patients with organ-confined disease and non-organ-confined disease, respectively. Baseline PSA (P = 0.037), PSA nadir (P < 0.0001) and PSA density (P = 0.003) significantly correlated with organ confinement. Multivariate logistic regression analysis revealed that the PSA nadir was the only independent predictor of organ confinement (P = 0.044). Conclusions There was a trend that the patients with non organ-confined disease had a higher probability of PSA failure than did the patients with organ-confined disease. The PSA nadir after neoadjuvant therapy was the strongest predictor of organ confinement. The predictive value of the serum PSA nadir should be validated in well-designed larger population-based studies. [source] Pathogenesis and molecular targeted therapy of spinal and bulbar muscular atrophyNEUROPATHOLOGY & APPLIED NEUROBIOLOGY, Issue 2 2007H. Adachi Spinal and bulbar muscular atrophy (SBMA) or Kennedy's disease is a motor neurone disease characterized by muscle atrophy, weakness, contraction fasciculations and bulbar involvement. SBMA mainly affects males, while females are usually asymptomatic. SBMA is caused by expansion of a polyglutamine (polyQ)-encoding CAG trinucleotide repeat in the androgen receptor (AR) gene. AR belongs to the heat shock protein 90 (Hsp90) client protein family. The histopathologic hallmarks of SBMA are diffuse nuclear accumulation and nuclear inclusions of the mutant AR with expanded polyQ in residual motor neurones in the brainstem and spinal cord as well as in some other visceral organs. There is increasing evidence that the ligand of AR and molecular chaperones play a crucial role in the pathogenesis of SBMA. The success of androgen deprivation therapy in SBMA mouse models has been translated into clinical trials. In addition, elucidation of its pathophysiology using animal models has led to the development of disease-modifying drugs, that is, Hsp90 inhibitor and Hsp inducer, which inhibit the pathogenic process of neuronal degeneration. SBMA is a slowly progressive disease by nature. The degree of nuclear accumulation of mutant AR in scrotal skin epithelial cells was correlated with that in spinal motor neurones in autopsy specimens; therefore, the results of scrotal skin biopsy may be used to assess the efficacy of therapeutic trials. Clinical and pathological parameters that reflect the pathogenic process of SBMA should be extensively investigated. [source] Latest news and product developmentsPRESCRIBER, Issue 7 2007Article first published online: 11 JUL 200 Poor asthma control with off-licence prescribing Children who are prescribed off-licence medications are more likely to have poor asthma control, according to an analysis from Dundee (Br J Gen Practice 2007;57:220-2). The review of 17 163 consultations identified 1050 (6.1 per cent) who received a prescription for an unlicensed use (defined as not licensed for children or the particular age group, or dose not licensed). High doses (4.5 per cent) were more frequent than unlicensed indications (1.9 per cent). Children who received off-label prescriptions reported statistically significantly more symptoms in the day or night, symptoms during activity, and increased use of daily short-acting beta2-agonists. The authors note that off-label prescribing appears to be increasing. Atkins diet most effective over one year? The ultra low-carbohydrate, high-protein Atkins diet achieved greater weight loss than other popular diets in overweight women over one year, say US investigators (J Am Med Assoc 2007;297:969-77). The study compared the Atkins diet with three diets designed as low- or very high-carbohydrate, or based on USA nutritional guidance, in 311 women with body mass index 27-40. After one year, mean weight loss was 4.7kg with the Atkins diet , significantly greater than with the low- carbohydrate diet (1.6kg) but not compared with very high-carbohydrate (2.2kg) or the nutrition-based diet (2.6kg). Metabolic endpoints were comparable or more favourable in women using the Atkins diet. Androgen therapy linked to gum disease The majority of men treated with androgen deprivation therapy for prostate cancer are more likely to have periodontal disease (J Urol 2007;177:921-4). After controlling for risk factors, the prevalence of periodontal disease was 80.5 per cent among treated men compared with 3.7 per cent in matched controls not receiving treatment. There was no difference in bone mineral density between the groups but plaque scores were significantly higher among treated men. Food Commission rebuts MHRA on additives An independent watchdog has not accepted the MHRA's justification for including certain additives in medicines for children. The Food Commission (www.foodcomm.org.uk) found that most medicines for children contained additives, some of which , including azo dyes and benzoates , are not permitted in food. The Commission called on the pharmaceutical industry to stop using ,questionable additives'. The MHRA stated that the licensing process takes into account the likely exposure to excipients that are considered essential to make medicines palatable to children. Colouring helps children to identify the correct medicine, and preservatives ensure a reasonable shelf-life. A list of additives is included in the product's summary of product characteristics and patient information leaflet. In response, the Commission states: , , it is quite possible to flavour medicines with natural oils or extracts, and natural colourings such as beetroot and beta-carotene can be used instead of azo dyes. If parents were advised to give these medicinal products at mealtimes the manufacturers could also add a little sugar to sweeten their products, rather than relying on artificial sweeteners.' All triptans the same? There is no economic case for choosing one triptan over another and no evidence for preferring a particular triptan for adults, a systematic review has concluded. The Canadian Agency for Drugs and Technologies in Health (www.cadth.ca) found that published trials had compared most triptans with sumatriptan but not with one another, and most economic evaluations were flawed. New drug for HIV Janssen-Cilag has introduced darunavir (Prezista), a new protease inhibitor for the treatment of HIV infection. Licensed for highly pre- treated patients in whom more than one other pro- tease inhibitor regimen has failed, darunavir must be co-administered with ritonavir (Norvir). A month's treatment at the recommended dose of 600mg twice daily costs £446.70. Variation in liquid captopril for children The NHS uses a wide range of liquid formulations of captopril to treat children with heart failure , with no assurance of their bioequivalence (Arch Dis Child 2007; published online 15 March. doi: 10.1136/adc.2006.109389). Specialists in Leicester surveyed 13 tertiary paediatric cardiac centres and 13 hospitals that referred patients to them. Only three tertiary centres supplied the same liquid for-mulation of captopril as their referring hospitals. Four hospitals supplied tablets for crushing and dissolving in water; the other hospitals and centres used a total of nine different formulations. The authors say the formulations had widely varying shelf-lives, determined empirically in all but one case, and were used interchangeably despite a lack of quality control data to establish their bioequivalence. QOF CVD targets not good enough for GPs Two-thirds of GPs want Quality Outcome Framework (QOF) targets for cardiovascular disease brought into line with those of the Joint British Societies latest guidance (JBS2), according to a survey by doctor.net.uk. The survey of 1000 GPs showed that 88 per cent were aware of the JBS2 guidelines and most were already implementing the targets for lipids, blood pressure and blood glucose in some form; however, only 55 per cent were implementing the JBS2 obesity target and 14 per cent were implementing screening for the over-40s. The JBS2 target for lipids in at-risk patients is <4mmol per litre total cholesterol and <2 mmol per litre LDL-cholesterol, compared with <5 and <3mmol per litre respectively in QOF and the NSF. The survey was commissioned by Merck Sharp & Dohme and Schering- Plough. Fracture warning Following warnings in the US that rosiglitazone (Avandia) is associated with an increased risk of fractures in women, Takeda has advised prescribers that pioglitazone (Actos) carries a similar risk. An analysis of the company's clinical trials database has revealed an excess risk of fractures of bones below the elbow and knee. The incidence was similar to the excess risk associated with rosiglitazone and also confined to women. Scottish approvals The Scottish Medicines Consortium (www.scottish medicines.org.uk) has approved for use within NHS Scotland the sublingual tablet formulation buprenorphine/naloxone (Suboxone) for the treatment of opioid dependence. It has also approved the combined formulation of valsartan and amlodipine (Exforge) and the restricted use of the If inhibitor ivabradine (Procoralan). [source] Increases in core body temperature precede hot flashes in a prostate cancer patientPSYCHO-ONCOLOGY, Issue 5 2009Laura J. Hanisch Abstract Objective: An effective and safe alternative treatment to hormone replacement therapy for hot flashes is needed for cancer patients. Interventions targeting the triggering mechanisms of hot flashes hold promise. Increases in core body temperature are a precursor of most hot flashes in women, and similar findings in prostate cancer patients undergoing androgen deprivation therapy would support further research in this area. We present preliminary findings of physiological changes in a prostate cancer patient with frequent hot flashes. Methods: Physiological changes in sternal skin conductance, heart rate, and core body temperature were continuously measured during two 3.5,h laboratory sessions. Perceived characteristics of hot flashes were recorded in a diary. Results: Five hot flashes were reported during laboratory sessions. Severity and bother ratings were low. All hot flashes were accompanied by large increases in sternal skin conductance and moderate increases in heart rate. Core body temperature increased 0.11,0.32°C prior to and fell 0.23,0.44°C following the peak increase in skin conductance. Conclusions: This case study suggests that hot flashes in men may be preceded by increases in core body temperature. Identification of behavioral factors that raise core body temperature may lead to specific treatment strategies to reduce the frequency of hot flashes. Copyright © 2008 John Wiley & Sons, Ltd. [source] Cognitive and mood changes in men undergoing intermittent combined androgen blockade for non-metastatic prostate cancerPSYCHO-ONCOLOGY, Issue 3 2009M.M. Cherrier Abstract Purpose: Men with prostate-specific antigen (PSA)-only relapse of prostate cancer after primary therapy are generally fully functional and asymptomatic with a life expectancy of up to 10 or more years. Androgen deprivation therapy (ADT) is a common treatment option. This study examined mood and cognitive changes in otherwise healthy men with prostate cancer prior to, during and after ADT. Experimental design: Twenty hormone naïve, eugonadal prostate cancer patients without evidence of metastases and with a rising PSA were treated with intermittent ADT consisting of 9 months of complete androgen blockade (CAB) achieved with combined leuprolide and flutamide followed by an ,off treatment' period. Cognitive function tests and mood measures were administered at baseline, after 3 and 9 months of ADT and after 3 months of no treatment. Twenty healthy control patients without prostate cancer range matched for age and education were tested at the same time intervals. Results: ADT patients evidenced a significant decline in spatial reasoning, spatial abilities and working memory during treatment compared with baseline. No changes were noted for measures of verbal or spatial memory, selective attention or language. Significant changes in self-rated mood such as increased depression, tension, anxiety, fatigue and irritability were evident during treatment compared with baseline for ADT patients. No significant changes in either cognitive tests or mood measures were noted for the healthy control group. Conclusions: These findings, suggest that 9 months of combined androgen blockade may result in some adverse changes in cognition and mood. However, many but not all of these changes can return to baseline after cessation of ADT. Copyright © 2008 John Wiley & Sons, Ltd. [source] Interest in services among prostate cancer patients receiving androgen deprivation therapyPSYCHO-ONCOLOGY, Issue 8 2004Pamela J. Shapiro Treatment side effects and decreased quality of life associated with androgen deprivation therapy (ADT) suggest the need for supportive services for prostate cancer (PC) patients receiving ADT. Nonetheless, uptake of services is low, suggesting that PC patients' preferences are not being addressed. We examined interest in supportive services and predictors of interest among 118 PC patients receiving ADT. Overall interest in services was associated with lower quality of life (p=0.01). The majority of participants expressed interest in informational services (70%), with a minority (22%) expressing interest in psychosocial services. Interest in psychosocial services was associated with younger age (p=0.02), and shorter duration of ADT (p<0.04), but was unrelated to psychological distress or social support. Although most men (68%) reported that they would prefer not to take medication for depression, 75% would do so if advised by their physician. Overall, results suggest that PC patients on ADT prefer individualized informational support. Substantial interest (61%) in Oncolink, an internet-based informational resource, suggests the Internet may provide an acceptable mode of service delivery. Health care providers should consider integrating increased informational support into routine care and, more generally, consider patient preferences in prioritizing and designing support services. Copyright © 2003 John Wiley & Sons, Ltd. [source] Effects of castration on insulin levels and glucose tolerance in the mouse differ from those in manTHE PROSTATE, Issue 15 2010Takamitsu Inoue Abstract BACKGROUND Plasma insulin concentration is increased in prostate cancer patients during androgen deprivation therapy (ADT) and hyperinsulinemia has been associated with aggressive prostate cancer behavior. To investigate the possible role of castration-induced hyperinsulinemia as a mechanism that may attenuate the beneficial effects of ADT in patients with prostate cancer, a murine model would be useful. We therefore investigated long-term metabolic effects of castration in several mouse models. METHODS We studied the long-term influence of castration on energy intake, body weight, glucose tolerance, plasma-insulin, plasma insulin-like growth factor-1 (IGF-1), plasma adiponectin, and plasma leptin in C57BL/6, Swiss nu/nu, and CB17 scid mice receiving various diets. In each case, mice were randomized to have either bilateral orchiectomy or a sham operation. RESULTS Energy intake, body weight, blood glucose levels in glucose tolerance test, plasma insulin, plasma IGF-1, and plasma leptin level in all had a trend to be decreased in castrated as compared to sham operated mice. Plasma adiponectin level was increased in the castrated mice. CONCLUSIONS The effects of castration on glucose, insulin, and related markers in several mouse models studied does not coincide with clinical observations; further studies in this area will require clinical research and/or the use of alternate models such as the dog. Prostate 70: 1628,1635, 2010. © 2010 Wiley-Liss, Inc. [source] Serum prostate-specific antigen levels reflect the androgen milieu in patients with localized prostate cancer receiving androgen deprivation therapy: Tumor malignant potential and androgen milieu,,THE PROSTATE, Issue 13 2010Itsuhiro Takizawa Abstract BACKGROUND Although androgen deprivation therapy (ADT) has a marked impact on the androgen milieu in vivo and outcomes of prostate cancer (PCa), it remains unclear which parameters reflect the androgen milieu during ADT or whether the milieu is associated with PCa aggressiveness. METHODS Seventy-two patients with localized PCa were prospectively studied based on their blood samples before and after ADT for 6 months. Serum androgens and related values were measured. RESULTS Before ADT, there was no correlation between the serum prostate-specific antigen (PSA) and androgen levels. After ADT, the serum PSA levels were correlated with each level of serum testosterone, dihydrotestosterone, androstenedione, dehydroepiandrosterone-sulfate (DHEA-S), and 3alpha-diol G (P,<,0.010 in all). Before ADT, patients with Gleason score of ,8 were likely to have lower serum testosterone levels than those with Gleason score of ,6 (P,=,0.058). After ADT, conversely, the testosterone levels in patients with Gleason score of ,8 appeared to be higher than in those with Gleason score of ,6 (P,=,0.060). The serum DHEA-S level was correlated with Gleason score before and after ADT (P,=,0.050 and P,=,0.040, respectively). CONCLUSIONS The serum PSA levels well reflect the androgen milieu in localized PCa patients receiving ADT, which can be explained by the Saturation Model and disease control. The androgen milieu in men with high Gleason score PCa is probably less affected by conventional ADT than that in men with low score cancer, which was suggested to be associated with adrenal androgen levels. Prostate 70: 1395,1401, 2010. © 2010 Wiley-Liss, Inc. [source] Use of thymosin ,15 as a urinary biomarker in human prostate cancerTHE PROSTATE, Issue 2 2005Lloyd M. Hutchinson Abstract BACKGROUND Additional prostate cancer (CaP) biomarkers are needed to increase the accuracy of diagnosis and to identify patients at risk of recurrence. In tissue-based assays, thymosin ,15 (T,15) has been linked to an aggressive CaP phenotype and correlated with future tumor recurrence. We hypothesized that T,15 may have clinical utility in biological fluids. METHODS T,15 was measured in urine from CaP patients; untreated (N,=,61), prostatectomy (RP, N,=,46), androgen deprivation therapy (ADT, N,=,14) and control groups; normal (N,=,52), genitourinary carcinoma (N,=,15), non-malignant prostate disease (N,=,81), and other urology (N,=,73). We evaluated the utility of urinary T,15 for CaP diagnosis, alone or in combination with prostate-specific antigen (PSA), and the relationship to CaP progression. RESULTS A normal threshold of 40 (ng/dl)/(,g_protein/mg_creatinine) was defined using receiver operating characteristic analysis and marked the 19th centile for age-matched controls. The proportion of untreated CaP patients with urinary T,15 above the threshold was significantly higher than normal and genitourinary disease controls (P,<,0.001). RP caused urinary T,15 to drop significantly (P,=,0.005). Pre-surgery T,15 concentrations greater than the normal threshold may confer greater risk of CaP recurrence. Relative to normal controls, patients receiving ADT for aggressive CaP were 12 times more likely to have elevated urinary T,15 (P,=,0.001, 95% CI,=,2.8, 51.8). Combining PSA and T,15 (PSA,>,4, or PSA,>,2.5, T,15,>,40, or PSA,=,2.5, T,15,>,90) provided the same sensitivity as a 2.5 ng/ml PSA cutoff, but markedly improved diagnostic specificity. CONCLUSIONS We report that T,15 is a urinary biomarker for CaP and suggest that T,15, in combination with PSA, can be used to improve both the sensitivity and specificity of CaP diagnosis. © 2005 Wiley-Liss, Inc. [source] Prostate cancer: a newly discovered route for testosterone to reach the prostateANDROLOGIA, Issue 5 2009Treatment by super-selective intraprostatic androgen deprivation Summary The prostate, an androgen-regulated exocrine gland, is an integral part of the male reproductive system which has an essential function in sperm survival and motility in its long hostile route to meet and fertilise the egg in the Fallopian tube. Testosterone is known to be the key, obligatory regulator of the prostate that promotes the development and progression of prostate cancer (PCa). Yet, the pathophysiological mechanism of PCa remains unclear and its causal relation to serum testosterone has not been established. Here, we report on the discovery of a previously unrecognized route of flow of free testosterone (FT), at a concentration of 130 times the physiological levels, reaching the prostate via the testicular and prostate venous drainage systems, bypassing the systemic circulation. This condition results from the malfunction of the vertically oriented testicular venous drainage system in humans, a phenomenon with a prevalence that increases rapidly with age, which causes deviation of the testicular venous flow from its normal route. Early results of an interventional radiological procedure, super-selective intraprostatic androgen deprivation therapy are discussed. This treatment has resulted in decrease in prostate volume, and serum PSA, with disappearance of cancerous cells on repeat biopsies in five of six patients. Some of the unresolved biological enigmatic questions associated with PCa are discussed. We conclude that pathological flow of FT from the testes directly to the prostate in an extremely high concentration via the testicular-prostate venous drainage systems was identified may explain the mechanism for the development of PCa. We suggest a time-window for eradication of localised, androgen-sensitive, PCa cells. We anticipate that this treatment may retard, stop or even reverse the development of the disease. A mechanism for the evolution of PCa is discussed. [source] Osteoporosis in patients with prostate cancer on long-term androgen deprivation therapy: an increasing but under-recognised problemBJU INTERNATIONAL, Issue 5 2010Ruth Langley No abstract is available for this article. [source] Individual variations of serum testosterone in patients with prostate cancer receiving androgen deprivation therapyBJU INTERNATIONAL, Issue 3 2009Juan Morote OBJECTIVE To analyse individual variations in serum testosterone level, the cumulative rate of ,breakthrough' increases over castrate levels, and to evaluate whether the increases can be predicted. PATIENTS AND METHODS Serum testosterone levels were determined every 6 months over 3 years in 73 consecutive patients with prostate cancer who were medically castrated, prospectively enrolled in a single tertiary academic centre. Patients recruited for this study were being treated with a 3-monthly depot of luteinizing hormone-releasing hormone agonist over 6,48 months. Serum testosterone was measured using a chemiluminescent assay with a lower sensitivity level of 15 ng/dL and interassay coefficient of variation of 25% at low testosterone concentrations. RESULTS Individual variations could not be explained by the interassay variation coefficient in 26% of the patients. The rate of breakthrough increases >50 ng/dL increased from 12.3% at the first determination to 24.7% at the third, then remaining stable. The rate of breakthrough increases of 20,50 ng/dL increased from 27.4% at the first determination to 31.5% at the second, and then remained stable. A first determination of <20 ng/dL provided an 11.4% probability for future increases of >50 ng/dL, with a 5.7% probability if two consecutive determinations were <20 ng/dL and a null probability when three consecutive determinations were <20 ng/dL. CONCLUSIONS Individual variations in serum testosterone level cannot be explained by the coefficient of variation of the assay in a quarter of patients who are medically castrated. Breakthrough increases over castrate levels increase over time and those of >50 ng/dL can be predicted from the previous levels. [source] 4 Audit of androgen deprivation therapy (ADT) register in Auckland regionBJU INTERNATIONAL, Issue 2006H. ZARGAR Aim:, To determine the indications for therapy and disease state of men with prostate cancer on Luteinizing Hormone Releasing Hormone (LHRH) analogue treatment entered in the Auckland regional ADT register. Method:, Patients were identified from ADT register and further information was obtained using hospital electronic databases (Concerto and CRIS) and general practitioner records. Results:, Two hundred and eleven patients were registered from Jan 2000 to June 2005 on ADT register. The median age at diagnosis was 73 (45,91). 151 patients (71%) were alive at the time of audit. 118 of patients (56%)had a bone scan, 60 of which confirmed bony metastases (28% of all patients). Based on PSA score at diagnosis (>20), Gleason score (8,9,10) and stage of clinical disease (T3 or higher), high-risk patients were identified. The most common indication for LHRH analogue therapy as first line therapy was advanced local/metastatic disease (39%). 81 (38%) of patient developed hormone refractory disease while on treatment. The patients in high-risk group were more likely to develop hormone refractory disease (Chi Square test P = 0.009). PSA Doubling Time (PSADT) of less than 10 months was associated with significance risk of developing local/bony complications (Chi Square test P = 0.002) and mortality (Chi Square test P = 0.034). Presence of metastatic disease was associated with increased mortality (Chi Square test P = 0.012). Conclusion:, Patients in high-risk group are more likely to develop hormone refractory disease. PSADT can be used as an indicator for identifying patients with increased risk of developing complications. Presence of metastatic disease at the time of diagnosis is associated with increased mortality. [source] Neuroendocrine differentiated small cell carcinoma presenting as recurrent prostate cancer after androgen deprivation therapyBJU INTERNATIONAL, Issue 9 2001Y. Miyoshi No abstract is available for this article. [source] Natural history of bone complications in men with prostate carcinoma initiating androgen deprivation therapyCANCER, Issue 3 2004Tracey L. Krupski M.D. Abstract BACKGROUND As evidence accumulates in favor of androgen deprivation therapy (ADT) in patients with recurrent or metastatic prostate carcinoma, concern has increased regarding bone loss associated with therapeutic hypogonadism. The current study described the natural history of bone complications in men with prostate carcinoma who have initiated ADT. METHODS Using 1992,2001 claims data from a 5% national random sample of Medicare beneficiaries, the authors identified men with prostate carcinoma who initiated ADT between 1992 and 1994. They analyzed inpatient, outpatient, and physician claims for bone complications over 7 subsequent years. They stratified the quartile of patients who survived longest into 2 cohorts: those who had received ADT for longer than and those who had received ADT for shorter than the median of 697 days. They evaluated the cumulative proportions of patients in each cohort with claims for pathologic fractures, osteoporosis/osteopenia, and nonpathologic fractures. RESULTS In the 1992,1994 sample, 4494 men with prostate carcinoma initiated ADT. Of these, 1126 survived > 2028 days (5.5 years). During the first 3 years of evaluation, the proportion of bone events was similar for men with shorter durations of ADT and men with longer durations of ADT. However, by 7 years, more men in the longer ADT cohort (45%) had sustained at least 1 pathologic or nonpathologic fracture compared with men in the shorter ADT cohort (40%). CONCLUSIONS In the current study, men with prostate carcinoma were found to be at risk for adverse bone effects from both the disease and the treatment. These longitudinal data revealed that fractures are common in this patient population and appear to be linked to the duration of ADT. Cancer 2004. © 2004 American Cancer Society. [source] | ||||||||||