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Egyptian Rheumatology and Rehabilitation
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A prospective study in hepatitis C virus treatment-naïve patients showing rheumatologic extra-hepatic manifestations of hepatitis C with associated risk factors: efficacy and safety using sofosbuvir-based direct antiviral therapy

Egyptian Rheumatology and Rehabilitation volume 47, Article number: 20 (2020) Cite this article

Abstract

Background

To study the most common rheumatologic manifestations of hepatitis C viral (HCV) infection in Egyptian patients and associated risk factors with assessment the effect of current therapies on these manifestations. A prospective study was carried out to HCV patients attending the tropical medicine department referred to rheumatology department, over a year. A total of 204 hepatitis C virus treatment-naïve patients aged 21–71 years old suffering from rheumatologic manifestations were recruited, and history taking, general and musculoskeletal examination, laboratory and serological investigations, imaging, and liver fibrosis findings were assessed: baseline, end of treatment, and 12 weeks later, either sofosbuvir/ribavirin or sofosbuvir/simeprevir regimens and through three consecutive visits: joint activity and functional scores were taken.

Results

Common observed rheumatologic manifestations were fibromyalgia (74.5%), arthralgia (73.5%), Raynaud’s phenomenon (54.9%), peripheral neuropathy (29.4%),chronic fatigue syndrome and purpura (24.5%), arthritis (16.7%), Sicca symptoms and skin ulcers (9.8%), and vasculitic CNS involvement (5.9%), mostly seen in females. VAS and FAS scales have improved across visits (p value < 0.001) with lowered number and percentage of arthralgia (tender joint counts), arthritis (swollen joint counts), improvement of fibromyalgia, purpura, peripheral neuropathy, anemia, and thrombocytopenia (p < 0.001). Common reported risk factors were barber shaving (52 %), dental procedures (44.1%), and surgical interventions (36.3%). Non-reactive cases shown by HCV-PCR response increased at the end of study reaching 62%. The percent of improvement was significantly higher in patients receiving sofosbuvir/simeprevir regimen (100%) versus sofosbuvir/ribavirin (58.2%).

Conclusion

Direct antiviral drugs seem to improve the rheumatic extra-hepatic manifestations of HCV patients and lowering viremia level especially sofosbuvir/simeprevir regimen in hepatitis C treatment-naïve patients.

Background

Hepatitis C virus (HCV) is known to affect the patients’ health-related quality of life compared to the controls [1]. There is a decrease in functional ability, reduced daily activities, and cost burdens, as well. Improvement in health-related quality of life is maintained and kept up with better viral control [2]. It was found that 45 to 85% of HCV-infected individuals are still unaware of their status [3]. Mortality rates were estimated to be three times higher than those in the general population and that each year, more than three hundred and fifty thousand patients die from HCV-related liver diseases [4, 5]. It was shown that HCV infection was associated not only with death from hepatic but also from extra-hepatic diseases [6]. This seemed to be a significant endemic medical issue in Egypt: an Egyptian demographic health survey done in 2008 from both urban and rural areas has demonstrated that 14.7% of the population has been infected, making this the highest prevalence in any population in the world [7,8,9]. It was found that the Nile Delta and Upper Egypt infection rates of HCV are 26% and 28%, respectively. Every year, incidence rates range between 2 and 6 per 1000, thus an estimation of 170,000 new cases every year in addition to the 11.5 million patients suffering from the HCV [10]. HCV viremia may provoke non-specific rheumatologic manifestations described as extra-hepatic ones [11]; non-specific serological abnormalities can occur and/or manifested clinical disease, affecting multiple organs and systems [12].

In Egypt, one of the virus highest world prevalence of 13.9–15.5% (14.7%) [13], a nucleic acid test that is positive in 7.0–12.2% (9.8) [14], genotype-4 (GT-4) was found in 90% of patients, which is typically difficult to treat [15].

Direct-acting antiviral drugs (DAAs) use for HCV treatment with research efforts going on intensively have resulted in the development of HCV sub-genomic replicons and are capable of autonomous replication [16] and cell culture models for HCV infection [17] resulting in screening assays identifying specific antiviral targets [18].

The aim of this study is to detect the most common rheumatologic manifestations of hepatitis C viral infection in newly diagnosed (treatment-naïve) Egyptian patients and their associated risk factors and assessment of current therapies of direct acting anti-virals on these manifestations.

Methods

Study design and setting

A prospective study was conducted over a year. The patients were referred from Tropical medicine and Hepatology outpatient clinic to Rheumatology and rehabilitation outpatient clinic, Faculty of Medicine.

Patients

Two hundred and four newly diagnosed hepatitis C treatment-naïve patients, who have never taken any antiviral therapy before, 100 males (49%) and 104 females (51%), were prospectively examined for HCV infection by ELISA and quantitative PCR test, over a period of a year, through history taking and general and musculoskeletal examination. Screening for extra-hepatic rheumatologic manifestations (fibromyalgia, arthralgia, arthritis, peripheral neuropathy, sicca symptoms, Raynaud’s phenomenon, purpura, skin ulcers, vasculitic CNS involvement, cryogloblulinemia, chronic fatigue syndrome) visual analog scale of pain (VAS) [19], and fatigue activity scale (FAS) [20] was taken across three consecutive visits (baseline, 12 weeks later, then 12 weeks after second visit).

Inclusion criteria

HCV treatment- naïve patients who never took an antiviral treatment for hepatitis C before were included, and the most discovered and associated important risk factors causing those prone subjects to be infected were asked to be included in this study.

Exclusion criteria

Patients presented with decompensated cirrhosis or organ transplants or malignancies were excluded. Patients positive for HCV Ab and negative by qualitative PCR test or patients co-infected with human immune deficiency virus or hepatitis B virus were also excluded. Exclusion of other autoimmune diseases (RA, SLE, primary Sjogren syndrome, other forms of vasculitis), mechanical or degenerative causes, lymphoproliferative and myeloproliferative disorders, and endocrinal causes is like thyroid dysfunction.

Laboratory investigations

Blood specimens were collected after an overnight fasting analyzed for complete blood count (CBC), erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), serum transaminases (AST, ALT), serum bilirubin, liver and kidney function tests were considered, prothrombin concentration and international normalized ratio, oral glucose tolerance test, and complete urine analysis. Serologically, rheumatoid factor (RF) was assayed with a quantitative immunonephelometry test, antinuclear antibodies (ANA), serum complement 3 (C3) and complement 4 (C4), cryoglobulin profile, anti-neutrophil cytoplasmic antibodies (ANCA), anti-thyroid antibodies (Anti-TPO and anti-TG antibodies), quantitative HCV-polymerase chain reaction to detect viral load (above 800.000 means high viremia, from 100.00 to less than 800.000 means moderate viremia, from 1000 to less than 100.000 means mild viremia, and less than 1000 means negative from viremia or the non-reactive stage), the bilharzial antibodies, and alpha-feto-protein.

Imaging studies

Plain radiographs of both hands and chest radiographs, abdominal ultrasonography (US), and assessing liver fibrosis by liver biopsy or fibroscan.

Sample size calculation

Sample size was calculated using a special formula based on the reported prevalence of rheumatologic extra-hepatic manifestations in HCV patients 17%, with 95% confidence interval, precision of 5%, population size 1000 available during study period to be 179. Finally, sample was increased by 10% to overcome non-response [21].

Selected protocols

Selected direct-acting antiviral therapy (DAA) combinations in this section were done according to their availability in Egypt. The two protocols were mainly sofosbuvir (NS5B inhibitor)-based.

Protocol A: sofosbuvir (NS5B inhibitor)-based protocols on 182 patients: sofosbuvir (400 mg) and weight-based ribavirin (RBV) (1000 mg [< 75 kg] to 1200 mg [> 75 kg]) for 12 weeks [22].

Protocol B: simeprevir (NS3/4A-inhibitor) + sofosbuvir (NS5B) inhibitor-based protocols on twenty two patients: simeprevir (150 mg) and sofosbuvir (400 mg) for 12 weeks [23].

Statistical analysis

Data was collected, coded, and analyzed using the Statistical Package for Social Science (SPSS) software version 16. A descriptive analysis in the form of means and standard deviations was calculated for numerical data, number, and percent for qualitative data, comparing between groups that was done using (chi-square) test for qualitative data. Comparison to investigations across visits was done (paired t test) for two reading and repeated measure ANOVA for more than two readings for testing all quantitative variables for normal distribution. The level of statistical significance was ≤ 0.05.

Results

Two hundred and four newly diagnosed (treatment-naïve) hepatitis C patients were investigated for extra-hepatic rheumatic manifestations: 100 (49.0%) were males, and the 104 (51.0%) were females. The mean age of patients with rheumatic manifestations was 48.11 ± 12.65, and the age group of the patient in this study range from 21 to 71 years. Majority of the patients were non-educated, and the mean disease duration of hepatitis C virus (HCV) was 2.46 ± 1.86.years (Table 1).

Table 1 Descriptive data of the hepatitis C patients: demographic and risk factors
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The most common risk factors associated with the hepatitis C virus (HCV) transmission were barber shaving (52%), dental procedures (44.1%), and surgical procedures (36.3%). Moreover, surgery, bilharzial treatment, tattooing, and Hegama were significantly more seen in male than female patients (Table 1).

The most common observed extra-hepatic rheumatologic manifestations of HCV-positive patients were fibromyalgia 152 (74.5%), arthralgia 150 (73.5%), raynaud’s phenomenon 112 (54.9%), peripheral neuropathy 60 (29.4%), chronic fatigue syndrome 50 (24.5%), purpura 50 (24.5%), arthritis 36 (16.7%), sicca symptoms 20 (9.8%), skin ulcers 20 (9.8%), and vasculitic CNS involvement 12 (5.9%), respectively. Most of these manifestations were significantly more seen in females than males (Table 2).

Table 2 Comparison of extra-hepatic manifestations between females and males
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During the study period, we assessed the extra-hepatic rheumatologic manifestations across the three visits, and it was detected: lowered number and percentage of arthralgia (tender joint counts) 150 (73.5%), 80 (39.2%), and 40 (19.6%); arthritis (swollen joint counts) 36 (16.7%), 20 (9.8%), and 16 (7.8%); fibromyalgia syndrome 152 (74.5%), 86 (42.2%), and 50 (24.5%); purpura 50 (24.5%), 6 (3.0%), and 4 (2.0%); peripheral neuropathy 60 (29.4%), 56 (27.4%), and 40 (19.6%); also laboratory investigations anemia 28 (13.7%), 26 (12.8%), and 12 (5.9%); and thrombocytopenia 51 (25.0%), 7 (3.4%), and 4 (2.0%) (p < 0.001) (Table 3).

Table 3 Comparison of extra-hepatic manifestations in follow-up visits
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By forward stepwise regression analysis to detect risk factors of the most common rheumatic manifestations, young age, having diabetes and hypertension, low C3, positive rheumatoid factor, and high HCV-PCR titer were documented risk factors of arthritis. Regarding arthralgia, female sex and high HCV-PCR titer were reported risk factors. High HCV-PCR titer was also a reported risk factor in fibromyalgia, where HCV-PCR was measured before the start of the antiviral treatment, 12 weeks at end of treatment course, and a third time 12 weeks later to document non recurrence of the virus (Table 4).

Table 4 Predictors for disease progression of the most common manifestations among HCV patients (forward step wise regression analysis)
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During the study period, we compared the visual analog scale (VAS) of pain and fatigue activity scale (FAS) through three consecutive visits and observed significant decreases of mean scores across visits ( p value < 0.001) (Table 5).

Table 5 Comparison of VAS and FAS in studied patients between follow-up visits
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A significant difference of laboratory investigations readings across time visits for PLT, WBCS, ALT, AST, albumin, and creatinine (Table 6).

Table 6 Comparison of various laboratory indices between follow-up visits (mean ± SD)
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Regarding rheumatologic manifestations, percentage of patients with low C3 (21.6%, 19.6%, 2.9%), low C4 (7.8%, 2.9%, 2.9%), and positive RF (42.2%, 32.4%, 18.6%) decreased significantly across the three visits (Fig. 1).

Fig. 1
figure 1

percentage of patients with low C3 (21.6%, 19.6%, 2.9%), low C4 (7.8%, 2.9%, 2.9%), and positive RF (42.2%, 32.4%, 18.6%) decreased significantly across the three visits

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By comparing between the two regimens regarding response to treatment, all patients who received sofosbuvir/simeprevir regimen have improved at the end of treatment 22 (100%) versus 106 (58.2%) who received sofosbuvir/ribavirin regimen, where 76 (41.8%) patients receiving sofosbuvir/ribavirin did not improve from the 182 patients who took this regimen.

Regarding the adverse effects of the treatment, the most side effects were reported with sofosbuvir/ribavirin in 102 patients (56%) in the form of GIT upset in 44 patients (24%) and skin manifestations in the form of skin rash and photosensitivity in 14 patients (7.7%). Both GIT upset with skin manifestations were reported in 22 patients (12%), and no reported side effects with sofosbuvir/simeprevir regimen (Table 7).

Table 7 Comparisons between the 2 protocols/regimens of double therapy as regards response to treatment and reported side effects
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Discussion

A high prevalence of rheumatologic extra-hepatic manifestations of hepatitis C virus among Egyptians has been documented [21]. In this study, we observed the effect of combined direct antiviral therapy on newly diagnosed (treatment-naïve) hepatitis C patients and its effects on their extra-hepatic manifestations. Direct-acting antivirals (DAAs) are medications having specific targets. The four classes are nonstructural proteins: 3/4A (NS3/4A) protease inhibitors (PIs), NS5A inhibitors, NS5B nucleoside polymerase inhibitors (NPIs), and NS5B non-nucleoside polymerase inhibitors (NNPIs). The four classes of DAAs target specific nonstructural proteins of the HCV life cycle, resulting in disruption of viral replication and infection [18].

Patients in this study showed significant improvement that lowered number and percentage of arthralgia (tender joint counts) 150 (73.5%), 80 (39.2%), and 40 (19.6%); arthritis (swollen joint counts) 36 (16.7%), 20 (9.8%), and 16 (7.8%); fibromyalgia syndrome 152 (74.5%); 86 (42.2%), and 50 (24.5%); purpura 50 (24.5%), 6 (3.0%), and 4 (2.0%); peripheral neuropathy 60 (29.4%), 56 (27.4%), and 40 (19.6%); also laboratory investigations anemia 28 (13.7%), 26 (12.8%), and 12 (5.9%); and thrombocytopenia 51 (25.0%), 7 (3.4%), and 4 (2.0%) (p < 0.001) after direct antiviral therapy, in which 106 (58.2%) of the patients improved after combined therapy by (sofosbuvir/ribavarin), and 22 (100.0%) improved after combined therapy by (sofosbuvir/simeprevir) with a total 62.7% improvement after treatment with comparison done shown during assessment when compared baseline and after treatment at week 24.

Similar results to an Egyptian research which treated newly diagnosed (treatment-naïve) patients who never took an anti-viral therapy before to take a direct acting therapy as their initial medication and treatment-experienced patients with genotype-4 HCV infections with sofosbuvir 400 mg/ribavirin 1000–1200 mg daily for 12 or 24 weeks, and rates were 90% (46/51) with 24 weeks and 77% (40/52) with 12 weeks of sofosbuvir and ribavirin therapy [22]. This may reflect the idea that the longer the duration of the therapy, the higher the percentage of improvement.

Ruane and colleagues [24] have demonstrated that the interferon-free therapy with sofosbuvir/ribavirin achieved a sustained virological response (SVR) of 100% in treatment-naïve for 24 weeks; in this current study, HCV-PCR was measured before start of the antiviral treatment, 12 weeks at end of treatment course, and a third time 12 weeks later to document non recurrence of the virus following sofosbuvir-based antiviral therapy detecting less than 1000 signifies non-reactive in 62% of patients whereas the combination of sofosbuvir/ledipasvir for 12 weeks resulted in sustained virological response (SVR) of 95% [24]. In another study using a combination of sofosbuvir (an NS5B inhibitor) and ribavirin for 12 to 24 weeks, with a SVR of 68–90% [25], the effect of using sofosbuvir/simeprevir was inconsistent with phase III PLUTO clinical trial, with high SVR 12 rate to patients receiving the same combination [26] and nearly same results in a previous study done by EL-Khayat and co-workers [27]. These two clinical trials may highlight the efficacy of the regimen using sofosbuvir/simeprevir in particular.

The most common observed rheumatologic manifestations in this study were fibromyalgia (74.5%), arthralgia (73.5%), and peripheral neuropathy (29.4%) that were more seen in females than in males. Observed significant mean visual analog scale (VAS) and mean fatigue activity score (FAS) across visits reported (p value <0.001) to all patients who received sofosbuvir/simeprevir regimen and 58.2% of patients who received sofosbuvir/ribavirin regimen across different visits. Similar results have shown that mean of FAS scale and VAS scale decreased significantly across follow-up visits in patients using SOF-based antiviral combinations mainly sofosbuvir/simeprevir regimen [28]. Also, a study done in 2016 showed that treated mixed cryoglobulinemic (MCS) patients with interferon-free, DAA-based therapy reported improvement in clinical parameters in all the patients with mixed cryoglobuniamia with 100% SVR12 and SVR24 by using different SOF-based antiviral combinations, resulting in a high antiviral efficacy of these drugs [29]. A small number of patients in this current study were found to have cryoglobinemia, and our results did not demonstrate a significant effect of the therapy on cryoglobulinemia. Another study done in Egypt 2017 on HCV patients was associated with arthropathy treated with combination therapy that consists of sofosbuvir, daclatasvir, and ribavirin and has shown marked improvement of manifestations of arthropathy in hepatitis C patients after treatment [30].

On the contrary, relapse was documented in few patients with vasculitis, who previously achieved a sustained virologic response (SVR) [31]. After interferon-free antiviral therapy was given, persistence of vasculitis was detected [32].

As reported above in this study, RF levels decreased from 42.2 to 18.6%, and low complement 3 (C3) was detected in first visit in 22% and reached to be detected into 3% of the patients with normalization across visits after antiviral treatment.These results are nearly similar to a study done in 2017 that had shown the safety and efficacy of direct-acting antiviral agents (DAAs) in treating HCV extra-hepatic manifestations, and a complete response was obtained in 77.3% of patients receiving direct-acting antiviral agents and RF levels normalized in 50% and C4 in 63.6% of the patients [33]. Although, rheumatoid factor is non-specific but included as one of the serological investigations of extra-hepatic viral C infection. When repeated in the follow-up evaluation, some patients who were having positive serology of this test have changed to be negative later on, with a significant decrease in their next visits after taking direct acting antiviral medications in the two protocol regimens.

In this study, sicca symptoms were detected in 9.8%, and arthritis was found in 16.7% patients only. A study done in 2017 has detected the prevalence of Sjögren syndrome in patients with HCV is less than 5% while arthritis being a rheumatic manifestation of HCV occurred in less than 10% of patients [34].

In the current study, a remarkable improvement of the clinical manifestations was observed during administration of DAAs, although symptoms persisted or worsened in 6 (3.3%) with sofosbuvir/ribavirin regimen but not with sofosbuvir/simeprevir regimen. An Egyptian study has shown the superiority of sofosbuvir-based antiviral therapy over pegylated interferon/ribavirin with marked SVR12 (100%) and lesser side effects [28]. On the other hand, a study had showed that (67%) of patients experiencing at least one adverse event during therapy based mainly on ribavirin containing regimen [35].

In the current research work, the most common risk factors triggering disease development in hepatitis C virus (HCV) transmission were having barber shaving, dental procedures (44.1%), and surgery procedures (36.3%), respectively. Surgery, bilharzial treatment, tattooing, and Hegama were significantly more seen in male than female patients. Most detected risk factors were found in systematic reviews that were in seven of the nine studies: surgery was reported to be significant. Also, blood transfusion, age, and hospitalization which were examined in 64–82% of total studies (n = 11). Five articles examined familial transmission in (45%), dental procedure in four articles (36%), and schistosomiasis or bilharziasis treatment and mother’s HCV status in three articles (27%). Almost 80% (79.2%; n = 42) of the risk factors assessed was found to be statistically associated with HCV infection, thus HCV prevention and early eradication is becoming a priority [36].

Accordingly, a proper assessment of modifiable risk factors of the disease, importance of proper health education, and the new interventions of preventive measures, targeting the whole community, can result in better outcomes.

Conclusions

The new era of using direct antiviral drugs seems to improve the rheumatologic extra-hepatic manifestations of hepatitis C viral infected patients. Thus, early interventions are needed especially, in newly diagnosed patients with HCV.

We recommend using direct anti-viral treatment and expanding the health education of modifiable risk factors which will aid in preventing re-infection once more and thus improving the quality of life in this community. Also, it is recommended in the future studies to consider more number of patients, which may help to verify our results.

Availability of data and materials

An availability of all datasets used and/or analyzed during this study were granted with raw data available on asking on private bases and will be available on open request.

Abbreviations

HCV:

Hepatitis C virus

DAAs:

Direct acting antivirals

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Acknowledgements

We are grateful to the patients for their participation in this study.

Funding

This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.

Author information

Authors and Affiliations

  1. Rheumatology & Rehabilitation Department, Faculty of Medicine, Fayoum University, Faiyum, Egypt

    Hanan M. Fathi & Soha H. Senara

  2. Tropical Medicine Department, Faculty of Medicine, Fayoum University, Faiyum, Egypt

    Ahmad A. Gomaa & Essam A. Hassan

  3. Public Health & Community Department, Faculty of Medicine, Fayoum University, Faiyum, Egypt

    Wafaa Y. Abdel Wahed

  4. Medical Microbiology & Immunology Department, Faculty of Medicine, Fayoum University, Faiyum, Egypt

    Hanaa M. Eid

  5. Clinical Pathology Department, Faculty of Medicine, Fayoum University, Faiyum, Egypt

    Fadwa Abdel Reheem

Authors
  1. Hanan M. Fathi
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  2. Wafaa Y. Abdel Wahed
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  3. Ahmad A. Gomaa
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  4. Essam A. Hassan
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  5. Hanaa M. Eid
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  6. Fadwa Abdel Reheem
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  7. Soha H. Senara
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Contributions

Conceptions. Constructing an idea or hypothesis for research and/or manuscript: SS. Design: HF. Planning methodology to reach the conclusion: HF and SS. Supervision: organizing and supervising the course of the project or the article and taking the responsibility: AG, S S, HF, and EHA. Fundings: no funding sources. Data collection and/or processing. Taking responsibility in execution of the experiments, patient follow-up, data management, and reporting: HF, SS, AG, EHA, and FA. Analysis and/or interpretation. Taking responsibility in logical interpretation and presentation of the results: HF, WAW, and HE. Literature review. Taking responsibility in this necessary function: All authors. Writer. Taking responsibility in the construction of the whole or body of the manuscript: All authors. Critical review for spelling or grammar mistakes and for intellectual contents: HF. All authors have read and approved the manuscript and ensured that this is the case.

Corresponding author

Correspondence to Hanan M. Fathi.

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Ethics approval and consent to participate

The current research has been approved by the Local Ethical Committee, Faculty of medicine, Fayoum University, R29 8th session on 23 November 2014. A written informed consent was obtained from educated patients, while detailed explanation about the study aims to those non-educated patients followed by their oral consent and approval for research publication and was enrolled in this study.

Consent for publication

Not applicable.

Competing interests

The authors declare that they have no competing interests.

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Fathi, H.M., Abdel Wahed, W.Y., Gomaa, A.A. et al. A prospective study in hepatitis C virus treatment-naïve patients showing rheumatologic extra-hepatic manifestations of hepatitis C with associated risk factors: efficacy and safety using sofosbuvir-based direct antiviral therapy. Egypt Rheumatol Rehabil 47, 20 (2020). https://doi.org/10.1186/s43166-020-00023-4

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