Efficacy of switches within the class of IL-17 inhibitors: An analysis of data from the Czech nationwide registry of psoriatic patients receiving biological/targeted therapy (BIOREP).

The IL-17 cytokine family encompasses six different homodimers and heterodimers referred to as IL-17A-F. Due to some differences in the mechanism of IL-17 inhibition, aninsufficient effect of one IL-17 inhibitor does not necessarily imply lack of efficacy of the other agent of the same class. Aim of study was analysis of the success rate of switches among IL-17 inhibitors (secukinumab, ixekizumab, and brodalumab) in patients treated in the Czech Republic. Data were obtained from the Czech nationwide registry of psoriatic patients receiving biological/targeted therapy (BIOREP). Our analysis involved data of a total of 90 patients with severe chronic plaque psoriasis and baseline PASI scores >10 both prior to first-line biological therapy initiation and after switch to another agent of the class of IL-17 inhibitors. The most effective switch was that from secukinumab to brodalumab, with PASI 90 reached by 64.7% and 73.3% of patients at weeks 12 and 24. Among patients switched from secukinumab to ixekizumab target PASI 90 responses were achieved (at weeks 12 and 24) by 41.2% and 55.2% of patients. Among patients switched from ixekizumab to brodalumab target PASI 90 responses were achieved, at the above time points, by 30.8% and 38.5% of patients. Our analysis showed a high success rate of switches from secukinumab to ixekizumab and brodalumab, followed by the ixekizumab-to-brodalumab switch. Importantly, the therapeutic response and success rates of individual switches are independent of the patient's body weight and presence of psoriatis arthritis.

Real-life experience in the effectiveness, impact on quality of life and safety of dupilumab treatment in patients with moderate to severe atopic dermatitis in the Czech Republic.

OBJECTIVES: The aim of the study was to assess the effectiveness and safety of dupilumab therapy in patients with moderate-to-severe atopic dermatitis (AD) in a real-life Czech bicentric cohort. METHODS: We retrospectively analysed 50 patients with moderate-to-severe AD treated with dupilumab in two centres in the Czech Republic. Baseline characteristics, the Eczema Area and Severity Index (EASI) score and Dermatology Life Quality Index (DLQI) were collected at baseline and each 3 following months. The proportion of patients achieving EASI50, EASI75, EASI90 and EASI100 were analysed. Levels of immunoglobulin E (IgE) were collected before and after 6 and 12 months of therapy. Adverse events were recorded as well. RESULTS: Thirty-two men and 18 women with mean body mass index (BMI) of 25.7 were enrolled in our analysis. The mean age of the patients was 37.6 years and the mean time from diagnosis until the initiation of dupilumab therapy was 35.0 years. After 4 months, EASI75 was achieved by 75.7%, out of which 40.5% achieved EASI90 and 10.8% achieved complete clearance. Improvement continued with time, and the proportion of patients with EASI90 increased to 71.4% at the 6th month and at the 12th month of therapy the EASI90 was 65.2%. EASI100 was achieved by 14.3% and 13.0% at the 6th and 12th month, respectively. A marked reduction was observed in the DLQI and also in IgE levels. EASI responses were independent of BMI. No new safety issues were identified. Adverse events were experienced by 44% (22/50) of the patients and they were all mild in intensity. Conjunctivitis and herpes simplex virus infection were the most common adverse events. CONCLUSION: Our results confirmed the effectiveness and safety of dupilumab in a real-life setting in adult patients with moderate-to-severe AD in the Czech Republic. Dupilumab was well-tolerated and resulted in a significant clinical improvement in combination with improvement of quality of life.

Demographic data, comorbidities, quality of life, and survival probability of biologic therapy associated with sex-specific differences in psoriasis in the Czech Republic.

BIOREP is a Czech registry of patients with psoriasis undergoing biological treatment. The objective of the study was to compare differences in demographic data, previous therapy, comorbidities, severity of psoriasis, quality of life, drug survival rates, and reasons for discontinuation between men and women. We analyzed a cohort of patients from the registry treated between May 2005 and January 2020. The total study population of 2472 patients (4051 treatment series) included 913 females and 1559 males. Women were significantly older than men at the onset of the biological treatment (47.8 vs 45.4 years, P < .0012) and the mean durations of psoriasis and that from its diagnosis until initiation of biological therapy, were longer in women (29.6 vs 27.2 years and 23.2 vs 20.6 years, P < .0012). Women as compared with men were also more often diagnosed with psoriatic arthritis (43.5% vs 33.0%, P < .0012). The prevalence rate of comorbidities was equivalent for both sexes except for that of depression (11.4% females vs 3.7% males, P < .0012). Both the DLQI and PASI scores were significantly different at baseline (DLQI = 16.0 and PASI = 19.5 for men vs DLQI 17.6 = and PASI = 17.7 for women, P < .0012). The survival probability with biological therapy was significantly lower in women for both biologically naïve and non-naïve patients, and there was more evidence of adverse effects in women. Our research demonstrates significant differences relative to multiple factors associated with psoriasis between men and women.

Molecular typing of Treponema pallidum in the Czech Republic during 2011 to 2013: increased prevalence of identified genotypes and of isolates with macrolide resistance.

From January 2011 to December 2013, a total of 262 samples, from 188 patients suspected of having syphilis were tested for the presence of treponemal DNA by PCR amplification of five chromosomal loci, including the polA (TP0105), tmpC (TP0319), TP0136, TP0548, and 23S rRNA genes. Altogether, 146 samples from 103 patients were PCR positive for treponemal DNA. A set of 81 samples from 62 PCR-positive patients were typeable, and among them, nine different genotypes were identified. Compared to a previous study in the Czech Republic during 2004 to 2010, the number of genotypes detected among syphilis patients in a particular year increased to six in both 2012 and 2013, although they were not the same six. The proportion of macrolide-resistant clinical isolates in this 3-year study was 66.7%.

Syphilis-causing strains belong to separate SS14-like or Nichols-like groups as defined by multilocus analysis of 19 Treponema pallidum strains.

Treponema pallidum strains are closely related at the genome level but cause distinct diseases. Subspecies pallidum (TPA) is the causative agent of syphilis, subspecies pertenue (TPE) causes yaws while subspecies endemicum (TEN) causes bejel (endemic syphilis). Compared to the majority of treponemal genomic regions, several chromosomal loci were found to be more diverse. To assess genetic variability in diverse genomic positions, we have selected (based on published genomic data) and sequenced five variable loci, TP0304, TP0346, TP0488, TP0515 and TP0558, in 19 reference Treponema pallidum strains including all T. pallidum subspecies (TPA, TPE and TEN). Results of this multilocus analysis divided syphilitic isolates into two groups: SS14-like and Nichols-like. The SS14-like group is comprised of SS14, Grady, Mexico A and Philadelphia 1 strains. The Nichols-like group consisted of strains Nichols, Bal 73-1, DAL-1, MN-3, Philadelphia 2, Haiti B and Madras. The TP0558 locus was selected for further studies because it clearly distinguished between the SS14- and Nichols-like groups and because the phylogenetic tree derived from the TP0558 locus showed the same clustering pattern as the tree constructed from whole genome sequences. In addition, TP0558 was shown as the only tested locus that evolved under negative selection within TPA strains. Sequencing of a short fragment (573bp) of the TP0558 locus in a set of 25 clinical isolates from 22 patients collected in the Czech Republic during 2012-2013 revealed that clinical isolates follow the SS14- and Nichols-like distribution.

Management of Moderate to Severe Plaque Psoriasis with Brodalumab in Daily Practice: Real-World Evidence from the LIBERO Study in the Czech Republic.

INTRODUCTION: Psoriasis is a chronic, immune-mediated inflammatory skin disease. Despite the availability of several therapies, many patients affected by this disease remain untreated, do not have adequate response, or suffer from treatment-related toxic effects. It has been shown that the interleukin (IL)-17 pathway plays a key role in the immunopathogenesis of psoriasis. Brodalumab, the first human monoclonal IgG2 antibody that selectively binds to subunit A of the human IL-17 receptor, blocking interactions with a number of cytokines of the IL-17 family, has confirmed fast onset of action, high complete clearance rates, and sustained efficacy. Nevertheless, there is only a limited amount of published real-world evidence (RWE) data. METHODS: This was an open-label, multicenter, real-world, prospective, non-interventional, non-controlled (single-arm) observational study (LIBERO-CZ) assessing the management of moderate to severe psoriasis with brodalumab in daily practice for up to 52 weeks of treatment. RESULTS: Fifty-four patients (70.4% male, mean age 46.9 ± 13.4 years, weight 95.6 ± 22.7 kg, disease duration 18.6 ± 12.7 years) were enrolled and included in the final analysis. Forty-nine of the patients completed the study and five discontinued prematurely; 51.8% of all the enrolled patients were biologic-naïve. At baseline, 28% patients were classified as severe (psoriasis area severity index (PASI) ≥ 20). Overall, the mean PASI decreased by 15.6 from 16.1 (± 5.0) at baseline to 0.5 (± 1.2) at the last visit. The primary endpoint of an absolute PASI ≤ 3 at week 12 (as observed analysis) was achieved by 95.9% of patients. The static Physician's Global Assessment (sPGA) success (defined as clear = 0 and almost clear = 1) at week 52 was achieved by 92.1% of patients. PASI 75, PASI 90, and PASI 100 were achieved by 98.0%, 87.8%, and 75.5% of patients, respectively, after approximately 52 weeks of treatment. The study also recorded very positive results concerning patient-reported outcomes. CONCLUSIONS: LIBERO-CZ confirms the fast onset and high clearance rates of brodalumab in real life in both biologic-naïve and biologic-experienced patients.

Disease burden, clinical management and unmet treatment need of patients with moderate to severe alopecia areata; consensus statements, insights, and practices from CERTAAE (Central/Eastern EU, Russia, Türkiye AA experts) Delphi panel.

Objectives: This study aims to update the understanding of Alopecia Areata (AA) in Poland, Czechia, Russia, and Türkiye, focusing on the disease burden, clinical management, and patient journey. It seeks to establish a consensus on optimal management strategies for AA in these regions. Methods: A modified 2-round Delphi panel was conveyed with 23 Dermatologists (Russia; 4, Türkiye; 7, Poland; 6, and Czechia; 6). The Delphi questionnaire consisted of 61 statements and 43 questions designed to obtain an overall understanding of the perception and acceptance of available information regarding the care of patients with alopecia areata. Results: The study revealed that moderate-to-severe AA significantly impacts patients' and their families' QoL, consistent with previous studies. AA was found to cause more substantial impairment when additional lesions appeared in visible areas besides the scalp. Work and productivity impairment were notably higher in adults with moderate-to-severe AA. Diagnostic consensus highlighted the importance of skin biopsies and trichoscopy, while the need for more practical severity scoring systems was emphasized. Current treatments, including topical therapies, corticosteroids, and systemic immune modifiers, were deemed insufficient, highlighting the unmet medical need. Conclusion: The Delphi study underscores a significant disease burden and unmet medical needs in patients with moderate-to-severe AA. It highlights the necessity of access to novel treatments and further research to develop more effective therapies with a tolerable safety profile. The findings align with global research, emphasizing the psychosocial impact of AA and the need for standardized, effective treatment protocols.

Disease burden, clinical management and unmet treatment need of patients with moderate to severe atopic dermatitis; consensus statements, insights and practices from CERTADE (Central/Eastern EU, Russia, Turkiye AD Experts) Delphi panel.

Background: There is limited insight into the current disease burden and everyday clinical management of moderate-to- severe AD in Poland, Czechia, Russia, and Turkiye. Therefore, this study aimed to get information-driven insights regarding the current disease burden and clinical management of patients with moderate-to-severe AD with common and differentiating aspects of the patient journey and establish a consensus. Methods: In this modified 2-round Delphi panel, 133 questions were asked in total to 27 dermatologists. A consensus was achieved when 70% of the panel members strongly agreed or agreed (or strongly disagreed or disagreed) with an item. Statements with <40% agreement dropped from the Delphi rounds and were not repeated. Results: The results state that AD has a significant impact on the quality of life for both patients and their families with social and economic consequences in these countries. While there were significant dissimilarities regarding the current treatment approach by preference order and treatment duration among participants, there was also a high percentage of consensus on literature and guideline-based statements. Current topical therapies and the immune response modifiers were not found to be sufficient by panelists to cover the therapeutic needs of patients with moderate-to-severe AD. Moreover, panelists highlighted the significant burden of adverse events with the off-label use of currently available immunosuppressants. Conclusions: These results underlined that there is a significant disease burden with an unmet treatment need for patients with moderate-to-severe AD in Poland, Czechia, Russia, and Turkiye.

Long-Term Efficacy, Safety, and Drug Survival of Guselkumab in Patients with Psoriasis: Real-World Data from the Czech Republic BIOREP Registry.

BACKGROUND: Real-world data on the long-term use of guselkumab for treatment of psoriasis are still limited. OBJECTIVE: We aimed to evaluate long-term efficacy, safety, and drug survival of guselkumab in a real-world setting. METHODS: This is a retrospective study analyzing Czech Republic registry (BIOREP) data of patients treated with guselkumab. RESULTS: In total, 333 patients were included. Improvement in Psoriasis Area and Severity Index (PASI) score was significant. Mean PASI score decreased from 16 at baseline to 0.7, 0.9, and 0.8 after 12, 24, and 36 months, respectively. Absolute PASI scores of ≤ 3 and ≤ 1 were achieved in 93.9% and 77.9%, 94.2% and 71.0%, and 94.8% and 70.7% of patients after 12, 24, and 36 months, respectively. Response PASI 90 and PASI 100 were attained in 81.8% and 57.1%, 75.4% and 50.7%, and 75.9% and 55.2% of patients after 12, 24, and 36 months, respectively. The percentage of patients achieving PASI 90 and PASI 100 responses was higher throughout the study in bio-naive and in normal-weight patients, while presence of psoriatic arthritis had no influence. Improvement in Dermatology Life Quality Index (DLQI) score was also significant; mean DLQI score decreased from 14.2 at baseline to 0.9, 1.0, and 0.7 after 12, 24, and 36 months, respectively. Patients with PASI 100 had lower mean DLQI throughout the study compared with patients with PASI 90. Major reason for discontinuation was loss of effectiveness in 7.1% of patients, while only 0.6% were due to adverse events. Overall cumulative drug survival was high, with only a minimal decline over time, reaching 91.6%, 87.0%, and 85.5% after 12, 24, and 36 months, respectively. Drug survival was not affected by previous biological treatment, patient weight, or presence of psoriatic arthritis. CONCLUSIONS: This real-world study demonstrated the long-term effectiveness, good safety profile, and high drug survival of guselkumab treatment over a period of 36 months.

Apremilast Use in Severe Psoriasis: Real-World Data from Central and Eastern Europe.

INTRODUCTION: The broad and sustained efficacy of apremilast for psoriasis has been demonstrated in randomized and real-world observational studies. Data from Central and Eastern Europe (CEE) are lacking. Moreover, apremilast use in this region is limited by country-specific reimbursement criteria. This is the first study to report data on the real-world use of apremilast in the region. METHODS: APPRECIATE (NCT02740218) was an observational, retrospective, cross-sectional study assessing psoriasis patients 6 (± 1) months after apremilast treatment initiation. The study aimed to describe the characteristics of patients with psoriasis receiving apremilast, estimate treatment outcomes, including Psoriasis Area Severity Index (PASI), Body Surface Area (BSA), and Dermatology Life Quality Index (DLQI), and assess dermatologists' and patients' perspectives on treatment using questionnaires including the Patient Benefit Index (PBI). Adverse event reports were taken from the medical records. RESULTS: Fifty patients (Croatia: 25; Czech Republic: 20; Slovenia: 5) were enrolled. In patients continuing apremilast at 6 (± 1) months, mean (± SD) PASI score was reduced from 16.2 ± 8.7 points at treatment initiation to 3.1 ± 5.2 at 6 (± 1) months; BSA from 11.9% ± 10.3% to 0.8% ± 0.9%; DLQI from 13.7 ± 7.4 points to 1.6 ± 3.2. PASI 75 was reached by 81% of patients. Physicians reported that the overall treatment success fulfilled their expectations in more than two thirds of patients (68%). At least three-quarters of patients reported apremilast had a quite or very high benefit on the needs they identified as being most important. Apremilast was well tolerated; no serious or fatal adverse events were identified. CONCLUSION: Apremilast was effective in reducing skin involvement and improving quality of life in CEE patients having severe disease. Treatment satisfaction among physicians and patients was very high. These data add to the growing body of evidence showing consistent effectiveness of apremilast across the continuum of psoriasis disease severity and manifestations. TRIAL REGISTRATION: ClinicalTrials.gov identifier, NCT02740218.

Efficacy, safety, and drug survival of patients with psoriasis treated with IL-17 inhibitors - brodalumab, ixekizumab, and secukinumab: real-world data from the Czech Republic BIOREP registry.

BACKGROUND: Real-world data on the use of interleukin-17 (IL-17) inhibitors for the treatment of psoriasis are limited. OBJECTIVE: To evaluate and compare the efficacy, safety, and drug survival of IL-17 inhibitors. METHODS: This retrospective study analyzed the BIOREP registry data of patients treated with at least one IL-17 inhibitor (secukinumab, ixekizumab, and brodalumab). RESULTS: In total, 949 patients were included. The improvement in PASI score was significant for all drugs, and the proportion of patients achieving PASI 75, 90, and 100 after both 3 and 24 months of therapy was highest for brodalumab, followed by ixekizumab and secukinumab. The Dermatology Life Quality Index score decreased to ˂3 after 3 months and to ˂2 after 24 months of therapy for all inhibitors. Loss of effectiveness was the major reason for discontinuation in 17.2% of patients, followed by adverse events in 3.2% of patients. The drug survival probability was the highest for brodalumab, followed by ixekizumab and secukinumab. Negative predictors for treatment discontinuation were obesity and the number of treatment lines, whereas a positive predictor was the presence of concomitant psoriatic arthritis; sex had no influence. CONCLUSION: This real-life study demonstrated the effectiveness and good safety profile of all currently available IL-17 inhibitors.

Dupilumab for the treatment of atopic dermatitis: real-world data from the Czech Republic BIOREP registry.

BACKGROUND: Dupilumab has been approved to treat moderate-to-severe atopic dermatitis; however, the data in a real-world setting are still limited. OBJECTIVE: To analyze the effectiveness and safety of dupilumab. METHODS: This was a real-life Czech multicenter retrospective study from patients treated with dupilumab for severe AD. RESULTS: A total of 360 patients were included. At 16 weeks, 66.6, 34.1, and 5.5% of patients achieved EASI75/90 and EASI100, respectively. Improvement continued with the time, and the proportion of patients with EASI75/90 and EASI100 increased to 89.5, 55.6, and 12.9% after one year of treatment and reached 95.8, 60.4, and 27.1% in the second year of therapy, respectively. A significant reduction was observed in the DLQI scores. The most common adverse events were infections in 5.8% of patients, followed by ocular complications in 2.5% of patients. Persistence rates were 98.2% at four months to 93.1% at month 24, and lack of effectiveness was the most common reason for discontinuation. CONCLUSION: This real-life study confirmed the effectiveness and safety of dupilumab in a real-life setting during the COVID-19 pandemic. Our study revealed a higher frequency of infections and a lower conjunctivitis frequency than other real-life studies and clinical trials.

Syphilis among STD clinic patients in Prague in 2009.

The aim of the study was to evaluate clinical, epidemiological and demographic data of patients with syphilis hospitalized at the Department of Dermatovenereology of the General Teaching Hospital in 2009 and to identify the groups at high risk of sexually transmitted diseases. The results were compared with the previous surveys carried out between 1999 and 2005 and also with the data of the National Registry of Venereal Diseases for 2008. A total of 232 patients were hospitalized in 2009 (including 26 women admitted for compulsory retreatment in pregnancy). We noticed a 25% increase in the number of patients in comparison with the year 2008. Of the total number of patients, 206 were patients with newly diagnosed syphilis, of which 153 (74.3%) were men and 53 (25.7%) women. There was 22.3% of patients with primary and 31.6% with secondary syphilis. As in the previous years, heterosexual contact remained the most frequent route of syphilis transmission. However, the number of homosexual and bisexual men increased, amounting to 64.7% of all hospitalized men. Four men were HIV positive. The age distribution did not change; majority of the patients were aged between 30 and 40. The proportion of foreigners also remained unchanged (19.9%); they came mainly from the Slovak Republic (31.1%) and Ukraine (26.7%). The absolute number of reported syphilis cases has been increasing in the Czech Republic since 2006. From the epidemiologic point of view, the increasing incidence of early stages of the disease is alarming. Men prevail over women among the infected persons; the men having sex with men (MSM) has been increasing in the last three years.

Real-World Evidence From More Than 1000 Patients Treated With Adalimumab For Moderate-to-Severe Psoriasis in the Czech Republic.

INTRODUCTION: The study aimed to evaluate the real-world effectiveness of adalimumab as well as investigate the persistence of treatment and identify factors, which may affect it. METHODS: More than 1150 patients (4363.1 patient-years) with psoriasis who had been treated with adalimumab since the start of the BIOREP registry in the Czech Republic were included in this analysis. Treatment effectiveness was defined as improvement in Psoriasis Area and Severity Index (PASI). The analysis was performed during the years 2005 and 2018. Patients were on on-label dose. RESULTS: After 12 and 96 months of therapy, 84% and 88% of patients had a 75% reduction in PASI score from baseline, respectively. Drug survival was analyzed according to the number of previous biological therapies, and results showed 75% and 58.1% survival rate for biologically naïve patients in the 20th and 80th month of treatment, respectively. The negative predictors of adalimumab survival were the female gender, obesity, baseline PASI score and the number of previous biological therapies. CONCLUSIONS: Baseline factors including PASI, number of previous biological therapies, and sex were associated with shorter adalimumab survival. This long-term study shows that adalimumab is effective and has high treatment persistence.

Risankizumab for the Treatment of Moderate-to-Severe Psoriasis: Real-Life Multicenter Experience from the Czech Republic.

INTRODUCTION: Risankizumab has been approved for the treatment of moderate-to-severe plaque psoriasis; however, real-life data are limited. Our objectives were to evaluate the effectiveness and safety of risankizumab and its impact on the quality of life of patients with psoriasis in a real-world setting. METHODS: We retrospectively analyzed 154 patients from 18 centers in the Czech Republic who had undergone biologic therapy with risankizumab for moderate-to-severe plaque psoriasis. Baseline characteristics included data on comorbidities, demographics, previous therapies, Dermatology Life Quality Index (DLQI) score, and Psoriasis Area and Severity Index (PASI) score. The proportion of patients achieving a 90% improvement in their PASI score from baseline (PASI 90) and complete resolution (PASI 100) after 16, 28, and 52 weeks was analyzed. RESULTS: A total of 95 men and 59 women with mean body mass index (BMI) of 29.6 were enrolled in our analysis. The mean age of the patients was 48.5 years and the mean time from diagnosis until initiation of risankizumab therapy was 22.5 years. After 16 weeks, 63.8 and 44.7% patients achieved PASI 90 and PASI 100 responses, respectively. Improvement continued with time, and the proportion of patients with PASI 90 and PASI 100 responses increased to 82.4 and 67.6%, respectively, at week 52. A significant reduction was observed over time in the DLQI. Patients achieving PASI 100 response at week 16 had a higher reduction in the DLQI score than those with PASI 90 response (- 15.9 vs. - 11.8). PASI 90 and PASI 100 responses were independent of the BMI and previous biologic therapy. No new safety issues were identified. CONCLUSIONS: In this patient population, risankizumab was effective and safe in a real-world setting, and a high number of patients achieved PASI 90 and PASI 100 responses. A higher reduction in the DLQI was seen in patients with PASI 100 response, which supports the evidence that this value should be the new therapeutic goal.

A retrospective study on nested PCR detection of syphilis treponemes in clinical samples: PCR detection contributes to the diagnosis of syphilis in patients with seronegative and serodiscrepant results.

Syphilis, caused by Treponema pallidum ssp. pallidum (TPA), is a persisting global health problem. Although syphilis diagnostics relies mainly on serology, serological tests have some limitations, and it is recommended that the final diagnosis be supported by additional tests. The purpose of this study was to analyze the relationship between serology and PCR in syphilis diagnostics. From the year 2004 to May 2019, a total of 941 samples were taken from 833 patients suspected of having syphilis, in Czech Republic. In all these samples, both nested PCR detection of TPA and serology testing were performed. Of the 941 samples, 126 were seronegative, 651 were seropositive, and 164 were serodiscrepant. Among seronegative samples (n = 126), 11 were PCR-positive (8.7%). Among seropositive samples (n = 651; i.e., samples positive for both non-treponemal and treponemal serology tests), 368 samples were PCR-positive (56.5%). The remaining 164 serodiscrepant samples included RPR negative and treponemal serological test-positive samples (n = 154) and a set of 10 RPR-positive samples negative in treponemal serological tests. While the first group revealed 73 PCR-positive samples (47.4%), the second revealed 5 PCR positive samples (50.0%). PCR detection rates were highest in primary syphilis, with lower rates in the secondary and undetermined syphilis stages. As shown here, the nested PCR can improve diagnostics of syphilis, especially in seronegative patients and in patients with discrepant serology.

MLST typing of Treponema pallidum subsp. pallidum in the Czech Republic during 2004-2017: Clinical isolates belonged to 25 allelic profiles and harbored 8 novel allelic variants.

A recently introduced Multilocus Sequence Typing scheme for Treponema pallidum subsp. pallidum was applied to clinical samples collected from 2004 to 2017 from the two largest cities (Prague and Brno) in the Czech Republic. Altogether, a total of 675 samples were tested in this study and 281 of them were found PCR-positive for treponemal DNA and typeable. Most of the typed samples (n = 281) were swabs from primary or secondary syphilis lesions (n = 231), and only a minority were whole blood or tissue samples (n = 50). Swab samples from patients with rapid plasma regain (RPR) values of 1-1024 were more frequently PCR-positive (84.6%) compared to samples from patients with non-reactive RPR test (46.5%; p-value = 0.0001). Out of 281 typeable samples, 136 were fully-typed at all TP0136, TP0548, and TP0705 loci. Among the fully and partially typed samples, 25 different allelic profiles were identified. Altogether, eight novel allelic variants were found among fully (n = 5) and partially (n = 3) typed samples. The distribution of TPA allelic profiles identified in the Czech Republic from 2004 to 2017 revealed a dynamic character with allelic profiles disappearing and emerging over time. While the number of samples with the A2058G mutation was seen to increase (86.7% in 2016/2017), the number of samples harboring the A2059G mutation was found to have decreased over time (3.3% in 2016/2017). In addition, we found several allelic profile associations with macrolide resistance or susceptibility, the gender of patients, as well as patient residence.

Dermatovenereology in the post-communist era: syphilis in Prague during 1999 to 2005.

This article presents a retrospective case-note review of patients diagnosed and hospitalized with acquired syphilis between January 1999 and December 2005 performed at the two Departments of Dermatovenereology in Prague. The syphilis epidemic in the Czech Republic between 1994 and 2001 now seems to be declining. The high rates of immigration from Eastern Europe, unprotected sex, and prostitution provide the basis for an epidemic of sexually transmitted infections. Early identification of infected individuals and high-risk population groups, adequate treatment, partner notification, and treatment of infected partners therefore is essential.

Characteristics and risk profile of psoriasis patients included in the Czech national registry BIOREP and a comparison with other registries.

BACKGROUND: BIOREP is a Czech registry of psoriatic patients on biological treatment in a clinical setting. We describe the characteristics of patients with psoriasis at the time of enrollment and present comparisons with published data from other national registries. METHODS: We analyzed the cohort of patients treated with biologics between May 2005 and May 2015. Demographic data, previous therapies, comorbidities, and severity of psoriasis were compared with data from other registries - DERMBIO, BIOBADADERM, BADBIR, and PSOBEST. RESULTS: A total of 1412 psoriatic patients initiating biological treatment were included with a predominance of males (63.4%). The mean patient age was 50.2 years, and approximately 70.5% of patients were either overweight or obese. The mean baseline Psoriasis Area and Severity Index was 19.8, and the Dermatology Life Quality Index was 16.6. More than one-third of patients (41.0%) reported a history of psoriatic arthritis, and a high proportion of patients (49.5%) with cardiovascular risk factors (hypertension [35.2%], hyperlipidemia [27.7%], diabetes mellitus [11.4%], coronary heart disease [4.9%], and obesity [15.2%]) were observed. Most of the patients had been previously treated with phototherapy (85.4%), acitretin (74.0%), methotrexate (65.7%), or cyclosporine (53.1%). CONCLUSION: BIOREP is one of the first registries of patients with psoriasis treated with biologics in Central and Eastern Europe. Our results found a similar or higher prevalence of comorbidities, long disease duration, and high impact on the quality of life among patients included in Western European registries.