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1.
Br J Dermatol ; 180(5): 1039-1049, 2019 05.
Artigo em Inglês | MEDLINE | ID: mdl-30485400

RESUMO

BACKGROUND: Long-term evaluation is required to confirm the safety profile of newer biologic agents. OBJECTIVES: To report on pooled safety data from the ongoing VOYAGE 1 (NCT02207231) and VOYAGE 2 (NCT02207244) trials through 100 weeks of follow-up. METHODS: Patients were randomized to either guselkumab 100 mg at weeks 0 and 4 and every 8 weeks thereafter; placebo at weeks 0, 4, 12 followed by guselkumab 100 mg at weeks 16 and 20 and every 8 weeks thereafter; or adalimumab 80 mg at week 0, 40 mg at week 1, and 40 mg every 2 weeks thereafter. Patients who received adalimumab crossed over to guselkumab at week 52 (VOYAGE 1) and at/after week 28 based on clinical response (VOYAGE 2). Open-label extensions, in which all patients received guselkumab, started at week 52 (VOYAGE 1) and week 76 (VOYAGE 2). Rates of adverse events (AEs) per 100 patient-years (PYs) are presented through 100 weeks of follow-up. RESULTS: Through week 52, observed rates for guselkumab- and adalimumab-treated patients, respectively, were 262·45 per 100 PYs and 328·28 per 100 PYs for AEs, 6·20 per 100 PYs and 7·77 per 100 PYs for serious AEs (SAEs), 1·22 per 100 PYs and 1·79 per 100 PYs for serious infections (SIs), 0·28 per 100 PYs and 0·40 per 100 PYs for malignancies other than nonmelanoma skin cancers (NMSCs), 0·56 per 100 PYs and 0·40 per 100 PYs for NMSCs, and 0·47 per 100 PYs and 0·40 per 100 PYs for major adverse cardiovascular events (MACEs). Rates among patients treated with guselkumab through week 52 and week 100, respectively, were 262·45 per 100 PYs and 210·41 per 100 PYs for AEs, 6·20 and 6·29 per 100 PYs, for SAEs, 1·22 per 100 PYs and 1·06 per 100 PYs for SIs, 0·28 per 100 PYs and 0·38 per 100 PYs for malignancies, 0·56 per 100 PYs and 0·39 per 100 PYs for NMSCs, and 0·47 per 100 PYs and 0·38 per 100 PYs for MACEs. Among patients treated with adalimumab, rates of AEs, SAEs, SIs, malignancies, NMSCs, and MACEs showed some variability before and after crossover to guselkumab, although no new safety signals were noted after crossover. CONCLUSIONS: The safety profile for guselkumab remains favourable through 100 weeks of treatment in patients with moderate-to-severe psoriasis.


Assuntos
Adalimumab/efeitos adversos , Anticorpos Monoclonais Humanizados/efeitos adversos , Doenças Cardiovasculares/epidemiologia , Psoríase/tratamento farmacológico , Adulto , Doenças Cardiovasculares/induzido quimicamente , Estudos Cross-Over , Método Duplo-Cego , Feminino , Seguimentos , Humanos , Subunidade p19 da Interleucina-23/antagonistas & inibidores , Subunidade p19 da Interleucina-23/imunologia , Masculino , Pessoa de Meia-Idade , Psoríase/diagnóstico , Psoríase/imunologia , Índice de Gravidade de Doença , Fatores de Tempo , Resultado do Tratamento
2.
J Eur Acad Dermatol Venereol ; 32(11): 1940-1949, 2018 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-29706008

RESUMO

BACKGROUND: Anxiety and depression are clinically significant comorbidities associated with psoriasis. Improvements in psoriasis are known to decrease anxiety and depression. Guselkumab, an anti-interleukin-23 monoclonal antibody, has demonstrated efficacy and safety for the treatment of moderate-to-severe psoriasis. OBJECTIVE: Assess improvements in anxiety and depression with guselkumab vs. placebo and adalimumab using the Hospital Anxiety and Depression Scale (HADS). METHODS: In VOYAGE 2, a Phase 3, randomized, double-blind, placebo- and adalimumab-controlled study, patients received placebo (through week 16 followed by crossover to guselkumab), guselkumab, or adalimumab through week 24. HADS consists of two subscales measuring anxiety (HADS-A) and depression (HADS-D), with scores ranging from 0 to 21 and higher scores indicating more severe symptoms. Scores ≥8 indicate instrument-defined anxiety or depression. Severity of psoriasis was assessed using the Psoriasis Area and Severity Index (PASI). RESULTS: Among 989 patients randomized (with baseline HADS measurements), mean HADS-A and HADS-D scores were 6.8 ± 4.2 and 5.3 ± 4.2, respectively; 38.6% of patients reported HADS-A ≥8 and 27.7% HADS-D ≥8 at baseline. At week 16, a significantly greater proportion of guselkumab patients with baseline HADS-A or HADS-D ≥8 reported HADS-A <8 (51.4% vs. 25.9%; P < 0.001) or HADS-D <8 (59.2% vs. 27.0%; P < 0.001) vs. placebo patients. At week 24, a greater proportion of guselkumab patients with baseline HADS-A or HADS-D ≥8 reported HADS-A <8 (58.4% vs. 42.9%; P = 0.028) or HADS-D <8 (59.8% vs. 46.4%; P = 0.079) vs. adalimumab patients. PASI improvements correlated with improvement in anxiety (r = 0.27; P < 0.0001) and depression (r = 0.25; P < 0.0001) scores in patients with baseline HADS-A or HADS-D ≥8. Greater improvements in HADS were also observed at week 16 in guselkumab-treated patients vs. placebo using a more stringent cut-off of HADS ≥11. CONCLUSION: Guselkumab treatment was associated with greater improvements in symptoms of anxiety and depression scores in patients with psoriasis compared with placebo and adalimumab.


Assuntos
Adalimumab/uso terapêutico , Anticorpos Monoclonais/uso terapêutico , Ansiedade/etiologia , Depressão/etiologia , Psoríase/tratamento farmacológico , Psoríase/psicologia , Adulto , Anticorpos Monoclonais Humanizados , Ansiedade/fisiopatologia , Estudos Cross-Over , Depressão/fisiopatologia , Relação Dose-Resposta a Droga , Método Duplo-Cego , Esquema de Medicação , Feminino , Humanos , Incidência , Modelos Lineares , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Testes Neuropsicológicos , Prognóstico , Psoríase/complicações , Psoríase/diagnóstico , Medição de Risco , Índice de Gravidade de Doença , Resultado do Tratamento , Adulto Jovem
3.
J Eur Acad Dermatol Venereol ; 32(9): 1515-1522, 2018 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-29512196

RESUMO

BACKGROUND: How patients experience the symptoms/signs of psoriasis is highly relevant for assessing treatment response. OBJECTIVES: Compare outcomes with guselkumab, placebo and adalimumab utilizing the novel, validated Psoriasis Symptoms and Signs Diary (PSSD). METHODS: VOYAGE 1 is an ongoing, phase III, double-blinded, controlled trial of patients with moderate-to-severe psoriasis. Patients were randomized to guselkumab 100 mg every 8 weeks; placebo-to-guselkumab 100 mg every 8 weeks; or adalimumab 40 mg every 2 weeks. The PSSD was self-administered to assess symptoms (i.e. itch, skin tightness, burning, stinging and pain) and signs (i.e. dryness, cracking, scaling, shedding/flaking, redness and bleeding) of psoriasis (0-10 [absent-to-worst-imaginable]) every 24 h. Symptom and sign summary scores were derived (0-100) based on average scores of the individual symptoms and signs. Proportions of patients with clinically meaningful improvements and symptom- and sign-free scores of 0 were evaluated across treatment groups at weeks 16, 24 and 48. RESULTS: At baseline, 652 of 837 randomized patients had PSSD scores. The proportion of patients achieving clinically meaningful improvements in PSSD summary scores was significantly higher in the guselkumab group compared with the placebo group at week 16 (P < 0.001) and compared with the adalimumab group at weeks 24 (P = 0.002) and 48 (P < 0.001). The proportions of patients achieving PSSD symptom and sign summary scores of 0 (i.e. symptom- and sign-free) were significantly higher for guselkumab vs. placebo at week 16 and vs. adalimumab at weeks 24 and 48 (all P < 0.001). CONCLUSIONS: Based on PSSD scores, greater improvements in symptoms and signs of psoriasis were reported by patients treated with guselkumab compared with placebo at week 16 or adalimumab through 48 weeks.


Assuntos
Adalimumab/uso terapêutico , Anticorpos Monoclonais/uso terapêutico , Fármacos Dermatológicos/uso terapêutico , Psoríase/tratamento farmacológico , Adulto , Anticorpos Monoclonais Humanizados , Método Duplo-Cego , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Autorrelato , Índice de Gravidade de Doença , Avaliação de Sintomas
4.
Br J Dermatol ; 178(1): 132-139, 2018 01.
Artigo em Inglês | MEDLINE | ID: mdl-28940259

RESUMO

BACKGROUND: Significant advances have been made in the treatment of moderate-to-severe plaque psoriasis with biological therapies; however, these agents may not work equally in all populations. OBJECTIVES: To evaluate the efficacy of guselkumab in patient subgroups with moderate-to-severe psoriasis from the pooled guselkumab VOYAGE 1 and VOYAGE 2 phase III studies. METHODS: Using data from the pooled VOYAGE 1 and VOYAGE 2 psoriasis studies, analyses were performed to evaluate the consistency of efficacy [Investigator's Global Assessment (IGA) 0/1 (cleared or minimal psoriasis) and IGA 0 (cleared)] across subpopulations defined by demographics, baseline disease characteristics and previous psoriasis treatment. RESULTS: A total of 1829 patients were randomized. Baseline demographics, disease characteristics and previous psoriasis treatment were comparable across treatment groups in the pooled population. Guselkumab, an anti-interleukin (IL)-23 monoclonal antibody that binds to the p19 subunit of IL-23, provided substantial benefit across almost all subpopulations, with greater proportions of patients achieving IGA 0/1 vs. placebo at week 16, and vs. adalimumab (an antitumour necrosis factor monoclonal antibody) at week 24. Patients treated with guselkumab achieved greater efficacy (IGA 0/1 and IGA 0) compared with adalimumab at week 24 across all weight quartiles, most notably among patients weighing ≥ 100 kg. CONCLUSIONS: This analysis demonstrates a high degree of efficacy with guselkumab treatment compared with placebo at week 16 and with adalimumab at week 24 among broad subpopulations of patients with varying baseline demographics, disease characteristics and previous psoriasis treatments.


Assuntos
Anticorpos Monoclonais/administração & dosagem , Fármacos Dermatológicos/administração & dosagem , Psoríase/tratamento farmacológico , Adalimumab/administração & dosagem , Adulto , Anticorpos Monoclonais Humanizados , Produtos Biológicos/administração & dosagem , Método Duplo-Cego , Esquema de Medicação , Feminino , Humanos , Masculino , Resultado do Tratamento
5.
Br J Dermatol ; 178(1): 114-123, 2018 01.
Artigo em Inglês | MEDLINE | ID: mdl-28635018

RESUMO

BACKGROUND: Guselkumab, an anti-interleukin-23 monoclonal antibody, has demonstrated significant efficacy in phase III psoriasis trials. OBJECTIVES: To evaluate the efficacy and safety of guselkumab in patients with moderate-to-severe plaque psoriasis who had an inadequate response to ustekinumab. METHODS: In this phase III, randomized, double-blind study, 871 patients received open-label ustekinumab (45 mg or 90 mg) at weeks 0 and 4. At week 16, 268 patients with an inadequate response to ustekinumab [Investigator's Global Assessment (IGA) ≥ 2] were randomized (double-blind) to guselkumab 100 mg or to continue ustekinumab; 585 of 871 patients (67%) with IGA 0/1 at week 16 continued open-label ustekinumab. The primary end point was the number of visits at which randomized patients achieved IGA 0/1 and at least a two-grade improvement (from week 16) from week 28 to week 40. Improvement ≥ 90% or 100% in Psoriasis Area and Severity Index (PASI 90/100) and Dermatology Life Quality Index (DLQI) of 0/1 were also assessed. RESULTS: The mean number of visits at which patients achieved IGA 0/1 and at least a two-grade improvemen (week 28-40) was significantly greater in the guselkumab group vs. the randomized ustekinumab group (1·5 vs. 0·7; P < 0·001); greater proportions of patients in the guselkumab group achieved IGA 0/1 and at least a two-grade improvement at week 28 (31·1% vs. 14·3%; P = 0·001) and week 52 (36·3% vs. 17·3%; P < 0·001). Greater proportions of patients treated with guselkumab achieved PASI 90, PASI 100 and DLQI 0/1 at week 52. After week 16, 64·4% of patients in the guselkumab group and 55·6% in the ustekinumab group had at least one adverse event (AE); infections were the most frequent AE type. Overall, 6·7% (n = 9) of patients in the guselkumab group had at least one serious AE compared with 4·5% (n = 6) for the ustekinumab group. CONCLUSIONS: Patients treated with ustekinumab who did not achieve an IGA of 0/1 by week 16 derived significant benefit from switching to guselkumab.


Assuntos
Anticorpos Monoclonais/administração & dosagem , Fármacos Dermatológicos/administração & dosagem , Psoríase/tratamento farmacológico , Adulto , Anticorpos Monoclonais/efeitos adversos , Anticorpos Monoclonais Humanizados , Produtos Biológicos/administração & dosagem , Produtos Biológicos/efeitos adversos , Fármacos Dermatológicos/efeitos adversos , Método Duplo-Cego , Feminino , Humanos , Masculino , Medidas de Resultados Relatados pelo Paciente , Resultado do Tratamento , Ustekinumab/administração & dosagem , Ustekinumab/efeitos adversos
6.
Br J Dermatol ; 172(5): 1371-83, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25307931

RESUMO

BACKGROUND: Evaluation of the dosing flexibility and long-term efficacy of biological agents is limited. OBJECTIVES: To evaluate the long-term efficacy and safety of ustekinumab with and without dosing adjustment in the 5-year PHOENIX 2 study. METHODS: Patients were randomized to placebo or ustekinumab (45 or 90 mg) at weeks 0, 4, then every 12 weeks; patients receiving placebo crossed-over at week 12. Dosing adjustments were permitted at/beyond week 28 for early adjusters (weeks 28 or 40 per response); late adjusters (during long-term extension per investigator judgement); and nonadjusters (maintained randomized treatment throughout the study). Efficacy and safety were evaluated through weeks 244 and 264, respectively. RESULTS: In the overall population, 70% (849 of 1212) of ustekinumab-treated patients completed treatment through week 244, with high proportions of patients responding to the 45-mg and 90-mg doses, respectively: 75% improvement in Psoriasis Area and Severity Index (PASI 75) (76·5% and 78·6%) and PASI 90 (50·0% and 55·5%). Approximately 20% of patients were early adjusters, 30% were late adjusters and 50% were nonadjusters. Approximately half of the late adjusters initiated adjustments after already achieving PASI 75. Improved response was generally observed following dosing adjustments. Through week 264, safety event rates did not increase and event rates were generally comparable between dose groups and between patients with and without dosing adjustment. CONCLUSIONS: Treatment with ustekinumab for up to 5 years was safe and effective. Improved response was generally demonstrated following dosing adjustments; further investigations are required to quantify actual incremental benefits. The results also suggest that some patients may desire treatment goals beyond PASI 75.


Assuntos
Fármacos Dermatológicos/administração & dosagem , Psoríase/tratamento farmacológico , Ustekinumab/administração & dosagem , Peso Corporal , Estudos Cross-Over , Fármacos Dermatológicos/efeitos adversos , Relação Dose-Resposta a Droga , Método Duplo-Cego , Esquema de Medicação , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento , Ustekinumab/efeitos adversos
7.
Br J Dermatol ; 170(2): 398-407, 2014 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-24117389

RESUMO

BACKGROUND: Most patients with psoriasis have nail changes, and treating nail psoriasis is challenging. OBJECTIVES: To assess improvement in fingernail psoriasis with ustekinumab treatment in the PHOENIX 1 trial. METHODS: Patients received ustekinumab 45 mg or 90 mg, or placebo at weeks 0 and 4. Ustekinumab-randomized patients continued maintenance dosing every 12 weeks, while patients receiving placebo crossed over to receive ustekinumab 45 mg or 90 mg at weeks 12/16 followed by dosing every 12 weeks. At week 40, initial responders [those with ≥ 75% improvement from baseline in Psoriasis Area and Severity Index (PASI 75)] were rerandomized either to continue maintenance dosing or to withdraw from treatment. Nail involvement was evaluated using the Nail Psoriasis Severity Index (NAPSI) on a target fingernail, Nail Physician's Global Assessment (Nail PGA) and mean number of nails involved. RESULTS: Of 766 randomized patients, 545 (71·1%) had nail psoriasis. At week 24, the percentage improvement from baseline NAPSI score was 46·5% (ustekinumab 45 mg) and 48·7% (ustekinumab 90 mg). Percentage improvements in NAPSI ranged from 29·7% (PASI < 50) to 57·3% (PASI ≥ 90). Mean NAPSI scores improved from 4·5 at baseline to 2·4 at week 24 (45 mg) and from 4·4 to 2·2 (90 mg). Nail PGA scores and the mean number of psoriatic nails improved by week 24. Further improvement was observed for all end points among initial responders continuing maintenance treatment through week 52. CONCLUSIONS: Ustekinumab significantly improves nail psoriasis, and improvements continue over time until up to 1 year of treatment in those receiving maintenance treatment.


Assuntos
Anticorpos Monoclonais Humanizados/administração & dosagem , Fármacos Dermatológicos/administração & dosagem , Doenças da Unha/tratamento farmacológico , Psoríase/tratamento farmacológico , Estudos Cross-Over , Método Duplo-Cego , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Índice de Gravidade de Doença , Resultado do Tratamento , Ustekinumab
8.
Br J Dermatol ; 168(4): 844-54, 2013 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-23301632

RESUMO

BACKGROUND: Long-term safety evaluations of biologics are needed to inform patient management decisions. OBJECTIVES: To evaluate the safety of ustekinumab in patients with moderate-to-severe psoriasis treated for up to 5 years. METHODS: Safety data were pooled from four studies of ustekinumab for psoriasis. Rates of adverse events (AEs), serious AEs (SAEs) and AEs of interest [infections, nonmelanoma skin cancers (NMSCs), other malignancies and major adverse cardiovascular events (MACE)] per 100 patient-years (PY) of follow-up were analysed by ustekinumab dose (45 or 90 mg) and by year of follow-up (years 1-5) to evaluate the dose response and impact of cumulative exposure. Observed rates of overall mortality and other malignancies were compared with those expected in the general U.S. population. RESULTS: Analyses included 3117 patients (8998 PY) who received one or more doses of ustekinumab, with 1482 patients treated for ≥4 years (including 838 patients ≥5 years). At year 5, event rates (45 mg, 90 mg, respectively) for overall AEs (242·6, 225·3), SAEs (7·0, 7·2), serious infections (0·98, 1·19), NMSCs (0·64, 0·44), other malignancies (0·59, 0·61) and MACE (0·56, 0·36) were comparable between dose groups. Year-to-year variability was observed, but no increasing trend was evident. Rates of overall mortality and other malignancies were comparable with those expected in the general U.S. population. CONCLUSIONS: No dose-related or cumulative toxicity was observed with increasing duration of ustekinumab exposure for up to 5 years. Rates of AEs reported in ustekinumab psoriasis trials are generally comparable with those reported for other biologics approved for the treatment of moderate-to-severe psoriasis.


Assuntos
Anticorpos Monoclonais Humanizados/efeitos adversos , Fármacos Dermatológicos/efeitos adversos , Psoríase/tratamento farmacológico , Anticorpos Monoclonais Humanizados/administração & dosagem , Doenças Cardiovasculares/induzido quimicamente , Ensaios Clínicos Fase II como Assunto , Ensaios Clínicos Fase III como Assunto , Fármacos Dermatológicos/administração & dosagem , Relação Dose-Resposta a Droga , Feminino , Seguimentos , Humanos , Infecções/induzido quimicamente , Masculino , Pessoa de Meia-Idade , Neoplasias/induzido quimicamente , Ensaios Clínicos Controlados Aleatórios como Assunto , Ustekinumab
9.
J Eur Acad Dermatol Venereol ; 27(12): 1535-45, 2013 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-23279003

RESUMO

BACKGROUND: Ongoing evaluation of biological agents in patients with moderate-to-severe psoriasis is needed to support their long-term use. OBJECTIVE: To evaluate long-term efficacy and safety of ustekinumab through 5 years in the PHOENIX 1 study. METHODS: Patients were randomized to placebo or ustekinumab (45 mg or 90 mg) at Weeks 0, 4 and every-12-weeks thereafter; placebo patients crossed-over to ustekinumab at Week 12. Clinical response through Week 244 was evaluated using the Psoriasis Area and Severity Index (PASI) in the Overall Population (i.e. patients receiving ≥ 1 dose of ustekinumab), Initial Responders (i.e. PASI 75 responders [Weeks 28/40] re-randomized at Week 40 to continue every-12-week maintenance) and Partial Responders (i.e.

Assuntos
Anticorpos Monoclonais Humanizados/uso terapêutico , Psoríase/tratamento farmacológico , Adulto , Anticorpos Monoclonais Humanizados/administração & dosagem , Anticorpos Monoclonais Humanizados/efeitos adversos , Relação Dose-Resposta a Droga , Método Duplo-Cego , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Placebos , Resultado do Tratamento , Ustekinumab
10.
Br J Dermatol ; 167(5): 1145-52, 2012 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-22803615

RESUMO

BACKGROUND: Ustekinumab is a monoclonal antibody that targets interleukin (IL)-12/23 p40 to treat psoriasis. The IL-12 pathway is also important in regulating immunity to Mycobacterium tuberculosis. OBJECTIVES: To evaluate the safety of isoniazid (INH) prophylaxis for newly identified latent tuberculosis infection (LTBI) in ustekinumab-treated patients with psoriasis. METHODS: Safety data from 3177 psoriasis patients evaluated across five phase III trials of ustekinumab (45 or 90 mg) conducted in North America, Europe and Asia were analysed. LTBI was diagnosed based on positive tuberculin skin test or QuantiFERON(®) -TB test (Cellestis, Carnegie, Vic., Australia) without evidence of active tuberculosis. RESULTS: At baseline, 101/2898 (3·5%) non-Asian and 66/279 (23·7%) Asian patients were newly identified with LTBI, and all were treated with INH. Through week 12, among patients who received INH, rates of adverse events (AEs) representative of INH toxicity were generally comparable between control and ustekinumab-treated patients, as well as between ustekinumab dose groups. Markedly abnormal alanine transaminase values occurred with comparable incidences between control and ustekinumab-treated patients. The rate of study agent discontinuation due to INH toxicity was low (5/167, 3·0%) and comparable between control and ustekinumab groups through week 12. The rate of INH-related AEs did not increase disproportionately through week 28. No cases of active tuberculosis were reported in patients who received concomitant INH starting at baseline. CONCLUSIONS: Across five trials of ustekinumab-treated patients with psoriasis, no cases of LTBI reactivation were observed in patients receiving concomitant INH prophylaxis for LTBI. INH prophylaxis was generally well tolerated by these patients with psoriasis.


Assuntos
Anticorpos Monoclonais/uso terapêutico , Antituberculosos/uso terapêutico , Isoniazida/uso terapêutico , Tuberculose Latente/prevenção & controle , Psoríase/tratamento farmacológico , Adulto , Anticorpos Monoclonais/efeitos adversos , Anticorpos Monoclonais Humanizados , Estudos de Casos e Controles , Método Duplo-Cego , Feminino , Humanos , Interleucina-12/imunologia , Interleucina-23/imunologia , Masculino , Pessoa de Meia-Idade , Psoríase/complicações , Psoríase/imunologia , Ensaios Clínicos Controlados Aleatórios como Assunto , Índice de Gravidade de Doença , Teste Tuberculínico , Ustekinumab
11.
Tissue Antigens ; 72(1): 39-48, 2008 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-18588573

RESUMO

Apoptosis may perpetuate some forms of inflammation. Of the apoptotic pathway proteins, Fas is particularly overexpressed in sarcoidosis. We hypothesized that Fas promoter single nucleotide polymorphisms (SNPs) contribute to the development and severity of sarcoidosis. Associations of known Fas promoter SNPs (-670, -690 and -1377) and deduced haplotypes with sarcoidosis and sarcoidosis severity were evaluated using matched case-control (n = 656 pairs) and case-comparison (n = 656) studies, respectively, using conditional logistic regression. Hardy-Weinberg equilibrium was confirmed for all three polymorphisms in African-Americans (AA), and for the -670 and -1377 in whites. Genotype and allele frequencies were significantly different between whites and AA. Race-stratified analysis revealed that a common haplotype, -1377G/-690T/-670G, was associated with sarcoidosis [odds ratio (OR) = 1.78, P = 0.05] only in AA. The haplotype -1377G/-690C/-670A was negatively associated with sarcoidosis (OR = 0.39, P = 0.03) only in AA. In conclusion, the consistency of these findings suggests that Fas promoter genetic variants may be related to sarcoidosis disease risk in AA.


Assuntos
Negro ou Afro-Americano/genética , Predisposição Genética para Doença , Polimorfismo de Nucleotídeo Único , Regiões Promotoras Genéticas/genética , Sarcoidose/genética , Receptor fas/genética , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos de Casos e Controles , Feminino , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Sarcoidose/epidemiologia , Índice de Gravidade de Doença , População Branca/genética
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