87 research outputs found
Incidence of HIV-related anal cancer remains increased despite long-term combined antiretroviral treatment: results from the french hospital database on HIV.
PURPOSE: To study recent trends in the incidence of anal cancer in HIV-infected patients receiving long-term combined antiretroviral treatment (cART) compared with the general population. PATIENTS AND METHODS: From the French Hospital Database on HIV, we identified 263 cases of invasive anal squamous cell carcinoma confirmed histologically between 1992 and 2008. We compared incidence rates of anal cancer across four calendar periods: 1992-1996 (pre-cART period), 1997-2000 (early cART period), and 2001-2004 and 2005-2008 (recent cART periods). Standardized incidence ratios (SIRs) were calculated by using general population incidence data from the French Network of Cancer Registries. RESULTS: In HIV-infected patients, the hazard ratio (HR) in the cART periods versus the pre-cART period was 2.5 (95% CI, 1.28 to 4.98). No difference was observed across the cART calendar periods (HR, 0.9; 95% CI, 0.6 to 1.3). In 2005-2008, HIV-infected patients compared with the general population had an excess risk of anal cancer, with SIRs of 109.8 (95% CI, 84.6 to 140.3), 49.2 (95% CI, 33.2 to 70.3), and 13.1 (95% CI, 6.8 to 22.8) for men who have sex with men (MSM), other men, and women, respectively. Among patients with CD4 cell counts above 500/ÎźL for at least 2 years, SIRs were 67.5 (95% CI, 41.2 to 104.3) when the CD4 nadir was less than 200/ÎźL for more than 2 years and 24.5 (95% CI, 17.1 to 34.1) when the CD4 nadir was more than 200/ÎźL. CONCLUSION: Relative to that in the general population, the risk of anal cancer in HIV-infected patients is still extremely high, even in patients with high current CD4 cell counts. cART appears to have no preventive effect on anal cancer, particularly in MSM
Phase 2B randomized study of nemolizumab in adults with moderate-to-severe atopic dermatitis and severe pruritus
Background: Nemolizumab targets the IL-31 receptor a subunit
involved in atopic dermatitis (AD) pathogenesis.
Objective: We sought to evaluate a new dosing strategy of
nemolizumab in patients with AD.
Methods: We performed a 24-week, randomized, double-blind,
multicenter study of nemolizumab (10, 30, and 90 mg)
subcutaneous injections every 4 weeks versus placebo, with
topical corticosteroids in adults with moderate-to-severe AD,
severe pruritus, and inadequate control with topical treatment
(n 5 226). The Eczema Area and Severity Index (EASI), the
peak pruritus (PP) numeric rating scale (NRS), and the
Investigatorâs Global Assessment (IGA) were assessed. Standard
safety assessments were performed.
Results: Nemolizumab improved EASI, IGA, and/or NRS-itch
scores, with the 30-mg dose being most effective.
Nemolizumab (30 mg) reduced EASI scores versus placebo at
week 24 (268.8% vs 252.1%, P 5 .016); significant
differences were observed by week 8 (P <_ .01). With significant
improvement (P 5 .028) as early as week 4, IGA 0/1 rates
were higher for 30 mg of nemolizumab versus placebo at week
16 (33.3% vs 12.3%, P 5 .008) but not week 24 because of an
increased placebo/topical corticosteroid effect (36.8% vs
21.1%, P 5 .06). PP-NRS scores were improved for 30 mg of
nemolizumab versus placebo at week 16 (268.6% vs 234.3%,
P <.0001) and week 24 (267.3% vs 235.8%, P <.0001), with a
difference by week 1 (P _4-point
decrease) were greater for 30 mg of nemolizumab versus
placebo at week 16 (P <_ .001) and week 24 (P <_ .01).
Nemolizumab was safe and well tolerated. The most common
adverse events were nasopharyngitis and upper respiratory
tract infection.
Conclusions: Nemolizumab resulted in rapid and sustained
improvements in cutaneous signs of inflammation and pruritus
in patients with AD, with maximal efficacy observed at 30 mg.
Nemolizumab had an acceptable safety profile. (J Allergy Clin
Immunol 2020;145:173-82.
Eczema phenotypes and risk of allergic and respiratory conditions in school age children
Background: Eczema phenotypes based on eczema onset and persistence might better identify groups prone to allergic and respiratory conditions than a binary definition of eczema. We examined the associations of childhood eczema phenotypes with allergic sensitization, allergy, asthma and lung function at school age. Methods: This study among 4277 children was embedded in a multi-ethnic population-based prospective cohort study. Five eczema phenotypes (never, early transient, mid-transient, late transient, persistent) based on parental-reported physician-diagnosed eczema from age 6 months until 10 years were identified. At age 10 years, allergic sensitization was measured by skin prick tests, physician-diagnosed allergy and asthma by parent-reported questionnaires, and lung function by spirometry. Adjusted linear, logistic and multinomial regression models were applied. Results: Compared with never eczema, all eczema phenotypes were associated with increased risks of asthma (odds ratios (OR) range (95% confidence interval): 2.68 (1.58, 4.57) to 11.53 (6.65, 20.01)), food and inhalant allergic sensitization (1.72 (1.25, 2.36) to 12.64 (7.20, 22.18)), and physician-diagnosed inhalant allergy (1.92 (1.34, 2.74) to 11.91 (7.52, 18.86)). Strongest effect estimates were observed of early and persistent eczema with the risk of physician-diagnosed food allergy (OR 6.95 (3.76, 12.84) and 35.05 (18.33, 70.00), respectively) and combined asthma and physician-diagnosed allergy (7.11 (4.33, 11.67) and 29.03 (15.27, 55.22), respectively). Eczema phenotypes were not associated with lung function measures. Conclusion: Eczema phenotypes were differentially associated with risks of respiratory and allergic conditions in school-aged children. Children with early transient and persistent eczema might benefit from more intense follow-up for early identification and treatment of asthma and allergies
Relationship between Regulatory T Cells and Immune Activation in Human Immunodeficiency Virus-Infected Patients Interrupting Antiretroviral Therapy
Persistent immune activation plays a central role in driving Human Immunodeficiency Virus (HIV) disease progression. Whether CD4+CD25+ regulatory T cells (Tregs) are harmful by suppressing HIV-specific immune responses and/or beneficial through a decrease in immune activation remains debatable. We analysed the relationship between proportion and number of regulatory T cells (Tregs) and immune activation in HIV-infected patients interrupting an effective antiretroviral therapy (ART). Twenty-five patients were included in a substudy of a prospective multicenter trial of treatment interruption (TI) (ANRS 116). Proportions and numbers of Tregs and the proportion of activated CD4 and CD8 T cells were assessed at baseline and month 12 (M12) of TI. Specific anti-HIV CD4 and CD8 responses were investigated at baseline and M12. Non parametric univariate analyses and multivariate linear regression models were conducted. At baseline, the proportion of Tregs negatively correlated with the proportion of HLA-DR+CD8+T cells (râ=ââ0.519). Following TI, the proportion of Tregs increased from 6.3% to 7.2% (pâ=â0.029); absolute numbers of Tregs decreased. The increase in the proportion of HLA-DR+CD38+CD8+T cells was significantly related to the increase in proportion of Tregs (pâ=â0.031). At M12, the proportion of Tregs did not negatively correlate with CD8 T-cell activation. Nevertheless, Tregs retain a suppressive function since depletion of Treg-containing CD4+CD25+ cells led to an increase in lymphoproliferative responses in most patients studied. Our data suggest that Tregs are efficient in controlling residual immune activation in patients with ART-mediated viral suppression. However, the insufficient increase in the proportion and/or the decrease in the absolute number of Tregs result in a failure to control immune activation following TI
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