Hereditary hemorrhagic telangiectasia also known as Osler-Weber-Rendu syndrome, is an disorder that causes abnormal blood vessel formation with bleeding. Inhibition of angiogenesis amelioretes bleeding complication. Anti-angiogenic agents such as bevacizumab, aflibercept, thalidomid, lenadomid and other new anti-angiogenic thyrosinkinase inhibitors, as well as sirolimus and takrolimus have emerged as a promising systemic or local therapy in reducing bleeding complications but are not curative. Other pharmacological agents include iron supplementation, antifibrinolytics and hormonal treatment. This review concentrates on new anti-agioproliferative drugs with effect in HHT- discusses the new biology of HHT, management issues that face the practising hematologist, and considerations of future directions in HHT treatment.

Multiple myeloma is the second most common blood cancer in New Zealand with higher incidence in Māori and Pacific Island populations. It remains an incurable disease but the rapidly changing treatment landscape has led to improved outcome. In response to recent changes in funding of anti-myeloma therapy in New Zealand, the New Zealand Myeloma Interest Group has reviewed the latest literature and updated the treatment pathway of transplant-eligible patients with newly diagnosed multiple myeloma.

Lenalidomide is a backbone agent in the treatment of multiple myeloma, but dose adjustment is required for those with renal impairment (RI). We evaluated the pharmacokinetics (PK) and safety of lenalidomide and dexamethasone as frontline pre-transplant induction, with doses adjusted at start of each cycle based on creatinine clearance, as per the official dosing guidelines. After 4 cycles, PK studies showed that patients with moderate RI (30 ≤ CrCl < 60 mL/min) receiving 10 mg dosing may be under-dosed and those with severe RI (CrCl <30ml/min) appeared appropriately dosed initially, but sustained significant decreases in maximum serum concentration (Cmax) after repeated dosing, due to rapid clinical improvement and enhanced drug clearance. PK drug monitoring during cycle 1 may facilitate appropriate and timely dose adjustments. Adverse events rates did not vary based on severity of RI. No patient discontinued lenalidomide for toxicity. This supports the feasibility and safety of frontline lenalidomide in transplant-eligible patients with RI.

Psoriasis is a chronic inflammatory disease involving multiple organ systems and affecting approximately 2% of the world\'s population. In this guideline, we focus the discussion on systemic, nonbiologic medications for the treatment of this disease. We provide detailed discussion of efficacy and safety for the most commonly used medications, including methotrexate, cyclosporine, and acitretin, and provide recommendations to assist prescribers in initiating and managing patients on these treatments. Additionally, we discuss newer therapies, including tofacitinib and apremilast, and briefly touch on a number of other medications, including fumaric acid esters (used outside the United States) and therapies that are no longer widely used for the treatment of psoriasis (ie, hydroxyurea, leflunomide, mycophenolate mofetil, thioguanine, and tacrolimus).

Renal impairment (RI) is a common complication of multiple myeloma (MM), which is presented as chronic kidney disease (CKD) or acute kidney injury (AKI). The typical pathological feature is cast nephropathy. Presently international system staging (ISS) is used in evaluating MM. Although the classic Durie-Salmon staging system could be still used in clinical practice, it may miss out some patients with renal impairment. For evaluations of RI in MM patients with CKD, it\'s recommended to assess the estimated glomerular filtration rate (eGFR) by creatinine based formula CKD-epidemiology collaboration (EPI) or modification of diet in renal disease(MDRD) and to stage the renal injuries according to 2013 Kidney Disease Improving Global Outcomes (KDIGO) CKD guidelines. For MM patients with AKI, KDIGO AKI guidelines is recommended for evaluation. Renal biopsy is not a routine procedure in all MM patients. It\'s necessary for patients presenting with glomerular injuries such as albuminuria > 1 g/24 h to eliminate immunoglobulin associated amyloidosis (AL) and monoclonal immunoglobulin deposition disease (MIDD). The effective treatment of MM can reduce serum light chain concentration and improve renal function. The basis of the RI treatment in MM is bortizomib-based regimen, which does not require dosage adjustment in patients with dialysis or renal insufficiency. Thalidomide and lenalidomide are two major immunomodulators in MM treatment. Thalidomide can be used effectively in RI patients without dosage adjustment while lenalidomide should be used cautiously in patients with mild or moderate RI with dosage adjustment and serum toxicity surveillance. High-dose therapy (HDT) and autologous peripheral blood stem cell transplantation (APBSCT) can be therapeutical options for RI patients younger than 65 y, and they should be considered more prudently in patients with severe renal insufficiency (GFR<30 ml/min). For patients who are not suitable for the treatment mentioned above, they can be treated with conventional chemotherapy, including VAD (vincristine, adriamycin and dexamethasone), MP (mephalan and prednisolone) and high-dose dexamethasone regimen. Adequate hydration (at least 3 litres of fluid intake a day or 2 L·m(-2)·d(-1)) and correcting reversible causes of RI are key points for the supportive care. Renal replacement therapy (more often hemodialysis) should be started in patients with severe AKI and end stage renal disease (ESRD). High flux or high cut-off membrane are recommended because routine hemodialysis could not remove the serum free light chain (sFLC) effectively. Plasmapheresis (PE) is recommended for patients with hyperviscosity syndrome or cast nephropathy presented with AKI, which may help to increase the dialysis-independency.

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Cutaneous lupus erythematosus (CLE) is a rare inflammatory autoimmune disease with heterogeneous clinical manifestations. To date, no therapeutic agents have been licensed specifically for patients with this disease entity, and topical and systemic drugs are mostly used \'off-label\'. The aim of the present guideline was to achieve a broad consensus on treatment strategies for patients with CLE by a European subcommittee, guided by the European Dermatology Forum (EDF) and supported by the European Academy of Dermatology and Venereology (EADV). In total, 16 European participants were included in this project and agreed on all recommendations. Topical corticosteroids remain the mainstay of treatment for localized CLE, and further topical agents, such as calcineurin inhibitors, are listed as alternative first-line or second-line topical therapeutic option. Antimalarials are recommended as first-line and long-term systemic treatment in all CLE patients with severe and/or widespread skin lesions, particularly in patients with a high risk of scarring and/or the development of systemic disease. In addition to antimalarials, systemic corticosteroids are recommended as first-line treatment in highly active and/or severe CLE. Second- and third-line systemic treatments include methotrexate, retinoids, dapsone and mycophenolate mofetil or mycophenolate acid, respectively. Thalidomide should only be used in selected therapy-refractory CLE patients, preferably in addition to antimalarials. Several new therapeutic options, such as B-cell- or interferon α-targeted agents, need to be further evaluated in clinical trials to assess their efficacy and safety in the treatment of patients with CLE.

Psoriasis vulgaris is a common, chronic inflammatory skin disease with a prevalence of 1.5-2% in Western industrialized countries. A relevant percentage of patients suffer from moderate-to-severe psoriasis and experience a significant reduction in quality of life. The choice of an adequate therapy could help to prevent disease and exacerbation of comorbidity, which could increase quality of life, avoid hospitalization and avoid reduction of working days. The present guidelines are focused on the initiation and management of systemic therapies in cases of moderate-to-severe plaque-type psoriasis in adults to optimize treatment response, adherence and quality of life. This first version of the Swiss S1 guidelines presents therapeutic recommendations which are based on a systematic literature search as well as an informal expert consensus of dermatologists in Switzerland.