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No description available.

Class of 2012 / Specific Aims: To evaluate the presence of statistical information from clinical studies in official product labeling specific for disease-modifying anti-rheumatic drugs (DMARDs) used in the treatment of rheumatoid arthritis. Methods: Data were abstracted from official product labeling DMARDs with FDA approval for treatment of rheumatoid arthritis. Each document was examined for the presence of statement regarding a priori type 1 error rate, p-values, and measures of variance. Medications were classified as either biologic or non-biologic. Main Results: A total of 14 DMARDs, 7 biologics (50%) and 7 non-biologics (50%), were found to be FDA approved for the treatment of rheumatoid arthritis. Primary outcomes consisted of American College of Rheumatology (ACR) response rates, radiographic changes, and health assessment questionnaire score (HAQ). Any measure of variance and the presence of a p-value were both found in six (43%) of the drug labels. Inclusion of p- values was found to be significantly greater in biologics compared to non-biologics for both ACR and radiographic results. Inclusion of variance was found to be significantly greater in biologics compared to non-biologics for radiographic changes only. No package inserts contained statements regarding the a priori type I error rate. Conclusions: Measures of variance are not frequently included in product labeling for either biologic or non-biologic DMARDs. However, inclusion of variance and p-values for ACR response rates and radiographic changes were more likely to be reported for biologics therapies as compared to non-biologics. A statement regarding Type 1 error rates were absent from labels regardless of outcome assessed.

Class of 2012 Abstract / Specific Aims: To evaluate the presence of statistical information from clinical studies in official product labeling specific for disease-modifying anti-rheumatic drugs (DMARDs) used in the treatment of rheumatoid arthritis. Methods: Data were abstracted from official product labeling DMARDs with FDA approval for treatment of rheumatoid arthritis. Each document was examined for the presence of statement regarding a priori type 1 error rate, p-values, and measures of variance. Medications were classified as either biologic or non-biologic. Main Results: A total of 14 DMARDs, 7 biologics (50%) and 7 non-biologics (50%), were found to be FDA approved for the treatment of rheumatoid arthritis. Primary outcomes consisted of American College of Rheumatology (ACR) response rates, radiographic changes, and health assessment questionnaire score (HAQ). Any measure of variance and the presence of a p-value were both found in six (43%) of the drug labels. Inclusion of p-values was found to be significantly greater in biologics compared to non-biologics for both ACR and radiographic results. Inclusion of variance was found to be significantly greater in biologics compared to non-biologics for radiographic changes only. No package inserts contained statements regarding the a priori type I error rate. Conclusions: Measures of variance are not frequently included in product labeling for either biologic or non-biologic DMARDs. However, inclusion of variance and p-values for ACR response rates and radiographic changes were more likely to be reported for biologics therapies as compared to non-biologics. A statement regarding Type 1 error rates were absent from labels regardless of outcome assessed.

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Trois dérivés d’amino acides sont reconnus d’une manière stéréo sélective par l’albumine du sérum bovin. Cette propriété a été observée dans le cas de la phosphatase alcaline de tissu non spécifique, (TNAP). Des inhibiteurs agissant à trois niveaux distincts sur les processus de minéralisation ont été cherchés: 1) TNAP ; 2) Formation de l’hydroxyapatite (HA); 3) Vésicules maticielles (VMs). Nous avons trouvé que des dérivés de benzothiophènes et de tétramisoles, solubles dans l’eau, sont des inhibiteurs spécifiques de TNAP. Un modèle qui permet de produire du HA, a été développé et a confirmé que les nucléotides sont des inhibiteurs de formation de HA. Nous avons montré que le médicament anti-rhumatisme sinomenine, n’ayant aucun effet sur le TNAP, ainsi que la théophylline ralentissaient tous les deux la formation de HA induits par les VMs. Ces modèles de minéralisation présentent un grand potentiel lors du criblage de médicaments pour le traitement de l’ostéoarthrose / Three amino acid derivatives were stereoselectively recognized by bovine serum albumin. Such property was also observed in the case of tissue non-specific alkaline phosphatase (TNAP), a marker in mineral formation. Inhibitors acting at three distinct levels on mineral formation were searched: 1) TNAP; 2) Hydroxyapatite (HA) formation; 3) Matrix vesicle (MV). We found that benzothiophene derivative of tetramisole are water soluble inhibitors of TNAP. A model producing HA as MVs was developed and served to screen HA inhibitors, confirming that several nucleotides inhibited HA formation. We demonstrated that the anti-rheumatic Chinese medicine sinomenine, having no effect on TNAP and theophylline, slowed down HA induced by MVs. The mineralization models presented a great potential to screen putative drugs to cure ostoarthritis.

<p>Patients with rheumatoid arthritis (RA) are at increased risk of developing malignant lymphoma, although details about this association remain unclear. The aims of this thesis were to investigate risk factors for lymphoma in patients with RA and to characterize these lymphomas regarding subtype, presence of Epstein-Barr virus (EBV), clinical manifestations and prognosis. </p><p>The Swedish hospital discharge register and the cancer register were used to identify RA patients with lymphoma. Two case-control studies were performed, one smaller including RA patients with lymphoma hospitalised in Uppsala health care region 1964-1983 (n=41) and one larger study of hospitalised RA patients with lymphoma in Sweden 1964-1995 (n=378). RA patients from the same cohorts, but without lymphoma, were matched as controls. Medical records for cases and controls were scrutinized for exposure information. The lymphoma tissues were reclassified according to the WHO classification, and presence of EBV was analysed by EBER in situ hybridisation.</p><p>The most important risk factor for lymphoma development was high RA disease activity. No association was determined between treatment with traditional disease modifying drugs, non-steroidal anti-inflammatory drugs, aspirin, peroral and intra-articular corticosteroids and lymphoma risk. Diffuse large B-cell lymphoma (DLBCL) was more frequent in RA patients than in lymphoma patients in the general population and displayed stronger association with RA disease activity than other lymphoma subtypes. RA patients with DLBCL had increased extranodal involvement and more advanced lymphoma stage at presentation than DLBCL patients in general, and the prognosis was poor. </p><p>A further subdivision of DLBCL into germinal centre (GC) and non-GC subtypes by the expression patterns of CD10, bcl-6 and IRF-4 showed a predominance of the non-GC subtype. This suggested peripheral activated B-cells as the cells of origin in these lymphomas. </p><p>The presence of EBV was low in lymphomas in RA patients (12%). </p>

Patients with rheumatoid arthritis (RA) are at increased risk of developing malignant lymphoma, although details about this association remain unclear. The aims of this thesis were to investigate risk factors for lymphoma in patients with RA and to characterize these lymphomas regarding subtype, presence of Epstein-Barr virus (EBV), clinical manifestations and prognosis. The Swedish hospital discharge register and the cancer register were used to identify RA patients with lymphoma. Two case-control studies were performed, one smaller including RA patients with lymphoma hospitalised in Uppsala health care region 1964-1983 (n=41) and one larger study of hospitalised RA patients with lymphoma in Sweden 1964-1995 (n=378). RA patients from the same cohorts, but without lymphoma, were matched as controls. Medical records for cases and controls were scrutinized for exposure information. The lymphoma tissues were reclassified according to the WHO classification, and presence of EBV was analysed by EBER in situ hybridisation. The most important risk factor for lymphoma development was high RA disease activity. No association was determined between treatment with traditional disease modifying drugs, non-steroidal anti-inflammatory drugs, aspirin, peroral and intra-articular corticosteroids and lymphoma risk. Diffuse large B-cell lymphoma (DLBCL) was more frequent in RA patients than in lymphoma patients in the general population and displayed stronger association with RA disease activity than other lymphoma subtypes. RA patients with DLBCL had increased extranodal involvement and more advanced lymphoma stage at presentation than DLBCL patients in general, and the prognosis was poor. A further subdivision of DLBCL into germinal centre (GC) and non-GC subtypes by the expression patterns of CD10, bcl-6 and IRF-4 showed a predominance of the non-GC subtype. This suggested peripheral activated B-cells as the cells of origin in these lymphomas. The presence of EBV was low in lymphomas in RA patients (12%).