Initial Dosage (initial + dosage)

Distribution by Scientific Domains


Selected Abstracts


Multilevel factors affecting tuberculosis diagnosis and initial treatment

JOURNAL OF EVALUATION IN CLINICAL PRACTICE, Issue 3 2008
Wilawan Thongraung BSc
Abstract Objectives, The study aims to assess provider adherence to national tuberculosis programme guidelines on diagnosis, initial regimens and dosages, and to examine independent effects of factors at patient, staff and hospital levels influencing adherence. Methods, A review of 383 medical records of new tuberculosis (TB) patients and interviews with related staff were carried out. The study was conducted in 16 public hospitals of seven provinces of southern Thailand. The outcome variables were provider adherence to the guidelines on diagnostic procedure, initial regimen and dosage. Independent variables consisted of patient, staff and hospital factors. Multilevel logistic regression was used to identify factors associated with adherence. Results, The proportions of adherence to the diagnostic procedure, initial regimen and initial dosage prescribed were 70.0%, 100.0% and 57.1%, respectively. Most of diagnosis non-adherence was anti-TB drugs being prescribed for smear-negative patients without prior antibiotic trial (12.5%). The anti-TB drug with the highest percentages of patients receiving non-adhered dosage was ethambutol (33.6%). In contrast to single-level analysis, which showed significant influence of up to five factors, multilevel analysis confirmed only strong effect of male patients receiving better adhered diagnosis and of non-doctors and TB clinics providing better dosage adherence. Conclusions, Adherence to TB diagnostic procedures was not good, and adherence to initial dosage, especially for ethambutol, was poor. TB clinics, the key factor of adherence, should be expanded. Female patients should be reviewed more carefully because they tend to receive poorer diagnosis adherence. [source]


Clinical Evaluation of Methoximorpholino-Doxorubicin (FCE 23762) in Dogs with Spontaneous Malignancies

JOURNAL OF VETERINARY INTERNAL MEDICINE, Issue 1 2000
Sarah E. Sheafor
We conducted a clinical evaluation of FCE 23762, a methoxymorpholino analog of doxorubicin, in 48 dogs with metastatic, nonresectable, or chemotherapy-resistant spontaneous malignancies at an initial dosage of 50,60 ,g/kg IV every 3 weeks. Clinical evidence of toxicity was minimal; 6 dogs developed grades I, II, and III hematologic toxicities after the 1st treatment, and 1 dog developed grade II gastrointestinal toxicity. One dog became pancytopenic 4 months after discontinuation of FCE 23762. No other adverse effects were noted. Partial or complete remissions were observed in 32% of the dogs. Responses were observed both in previously untreated dogs and in those that had received prior chemotherapy, including doxorubicin. FCE 23762 is a promising new antineoplastic agent that can be used safely in dogs with cancer; doses higher than those used in this study may be used eventually in practice. [source]


Long-term remission after cessation of interferon-, treatment in patients with severe uveitis due to Behçet's disease

ARTHRITIS & RHEUMATISM, Issue 9 2010
Christoph M. E. Deuter
Objective To retrospectively assess the development of visual acuity and the frequency and duration of relapse-free periods in patients who were treated with interferon-, (IFN,) for severe uveitis due to Behçet's disease (BD) and who completed a followup period of ,2 years. Methods IFN alfa-2a was administered at an initial dosage of 6 million IU per day, then tapered to a maintenance dosage of 3 million IU twice per week, and finally discontinued, if possible. In case of a relapse, IFN treatment was repeated. Visual acuity at the end of followup was compared with visual acuity when ocular disease was in remission. Results Of 53 patients (96 eyes), 52 (98.1%) responded to IFN. In 47 patients (88.7%), IFN could be discontinued when the disease was in remission. Twenty of these 47 (42.6%) needed a second treatment course during a median followup of 6.0 years (range 2.0,12.6 years). Visual acuity improved or remained unchanged in 91 eyes (94.8%). Ocular disease was still in remission in 50% of the patients 45.9 months after cessation of the first IFN course. The relapse rate tended to be lower in women than in men. The BD activity score decreased significantly during followup, but long-term remission of nonocular BD manifestations was not achieved. However, since local treatments were sufficient, no systemic treatment was administered. Conclusion Our findings indicate that IFN, induces long-lasting remission in patients with severe ocular BD, resulting in a notable improvement in visual prognosis. [source]


Thalidomide dramatically improves the symptoms of early-onset Sarcoidosis/Blau syndrome: Its possible action and mechanism

ARTHRITIS & RHEUMATISM, Issue 1 2010
Kozo Yasui
Objective Early-onset sarcoidosis (EOS), which occurs in children younger than 5 years of age, is associated with granulomatous lesions and a sporadic genetic mutation of the nucleotide-binding oligomerization domain 2 that causes constitutive NF-,B activation. The symptoms of EOS can be uncontrollable, progressive, and associated with profound complications. However, appropriate therapy is still under investigation. The aim of this study was to assess the efficacy of thalidomide in patients with severe EOS, based on etiology supporting an initial role of NF-,B in activation of this disease. Methods Thalidomide was given to 2 patients with EOS (a 16-year-old girl and an 8-year-old boy) at an initial dosage of 2 mg/kg/day, and the dosage was increased if necessary. To elucidate the mechanism of the drug, peripheral blood monocytes were isolated from the patients and stimulated with cytokines (macrophage colony-stimulating factor, tumor necrosis factor ,, and interleukin-4), and their ability to form multinucleated giant cells (MGCs) and osteoclasts was measured. Results Both patients showed dramatic improvement of their clinical symptoms (alleviation of fever and optic nerve papillitis, achievement of a response according to the American College of Rheumatology Pediatric 50 and Pediatric 70 criteria) and laboratory findings. Monocytes from patients with EOS had a greater ability to survive and induce MGCs and osteoclasts than those from healthy control subjects. The formation of MGCs and osteoclasts was inhibited by the presence of thalidomide. Conclusion The ability of thalidomide to improve clinical symptoms and laboratory findings in patients with EOS indicates a central role for NF-,B activity in this disorder. Inhibition of IKK might be a pharmacologic action by which thalidomide down-regulates NF-,B signaling. Thalidomide may be an effective medication in patients with severe complications of EOS, including ocular involvement. [source]