Comparison of Rupatadine Monotherapy and Combined Levocetirizine with Ranitidine Dual Therapy for the Treatment of Chronic Idiopathic Urticaria

Research

Comparison of Rupatadine Monotherapy and Combined Levocetirizine with Ranitidine Dual Therapy for the Treatment of Chronic Idiopathic Urticaria

  • Kaniz Rahman 1
  • Richmond Ronald Gomes* 2
  • Dilruba Aktar 3
  • SM Matiur Rahman 4
  • Sharif M Rahman 5

*Corresponding Author: Richmond Ronald Gomes, Associate Professor, Medicine Ad-din Women’s Medical College Hospital, Dhaka, Bangladesh.

Citation: K Rahman, R R Gomes, D Aktar, SM M Rahman, S M Rahman. (2021) Comparison of Rupatadine monotherapy and Combined Levocetirizine with Ranitidine dual therapy for the treatment of Chronic Idiopathic Urticaria. Dermatology and Dermatitis. 6(2); Doi:10.31579/2578-8949/081

Copyright: ©2021 Richmond Ronald Gomes, This is an open-access article distributed under the terms of The Creative Commons. Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Received: 21 July 2021 | Accepted: 07 August 2021 | Published: 13 August 2021

Keywords: chronic idiopathic urticarial; antihistamine; itching; relapse

Abstract

Background: Effective treatment for chronic idiopathic urticaria (CIU) with conventional combined therapy comprising H1 and H2 antihistamine is effective but associated with high relapse rate. Newer H1 blocker rupatadine alone is similarly effective with less relapse rate. Also it is convenient for the patient as similar efficacy is obtained with single dosage compared to 3 times dosing in combined therapy. This study was done to compare the traditional treatment with levocetirizine and ranitidine to a newly introduced antihistamine rupatadine for CIU. 

Materials and Methods:  The study was a hospital based prospective randomized control trial among 40 patients with CIU in Dermatology and Venereology department of Bangabandhu Sheikh Mujib Medical University(BSMMU), Dhaka from April 2020 to September 2020.Forty patients of CIU were randomly enrolled into two equal groups (group A and B). Patients of group-A were treated with 5 mg of levocetirizine once daily plus 150 mg of ranitidine twice orally  daily and group-B were treated with rupatadine 10 mg once daily for one month. The efficacy was assessed 1st and 4th week during treatment and 4 weeks after completion of treatment by observing reduction of itching, regression of the size and shape of lesions and appearance of new lesions. Adverse effects and patient satisfaction were also noted.

Results: 75% patients in group A and 80% patients in group B responded to treatment (p>0.05).80% in group A and 85% in group B showed improvement in itching in the first week (p>0.05). . At the end of 4 weeks 95% showed improvement in each group. Appearance of new lesions in first week was 10% and 5% (p>0.05) and at 4th week, 5% and 0% respectively (p>0.05). 75% in group A and 80% in group B had regression in their lesions at the end of first week (p>0.05). At the end of 4th week, it was 85% and 90% (p>0.05). 40% in group A and 25% in group B had relapse of itching at follow up (p<0.05). Relapse of lesions were 35% and 20% (p<0.05). Overall occurrence of side effects (3 compared to 1) was more in group A. 

Conclusion: The result of the present study show that both conventional treatment with levocetirizine and ranitidine combination and newer agent rupatadine alone has similar efficacy in reducing clinical sign and symptoms of CIU. But rupatadine has significantly reduced the relapse rate and so it is a more efficacious and also safer option with less adverse effects   for the treatment of CIU in comparison to conventional treatment. Rupatadine is also more convenient option for patients in term of dosage schedule.

Introduction

CIU is a relatively common skin condition with a 0.5% worldwide lifelong prevalence across different populations, affecting between 0.1% and 3% people in Europe and the ASIA [1]. The etiology is often unknown and a predominant physical urticaria and urticarial vasculitis have been excluded [1,2]. Studies investigating the natural history of CIU in adults have indicated that about 30–55% of patients go into remission within 12 months, although the disease may persist in some patients for several years [3-5].

Besides being severely debilitating and disfiguring, CIU may also be potentially stigmatizing, CIU get worse the Quality of Life, primarily as a result of sleep disruption, energy loss, fatigue, social isolation and emotional/sexual disturbances [6]. This condition follows a chronic course with spontaneous remission and relapses for several years [2]. Chronic urticaria etiology is often unknown [1]. There is increasing evidence for basophil and mast cell-mediated inflammation in urticaria and angio-oedema. Histamine and other mast cell mediators [including eicosanoids, cytokines, proteases, kinins and platelet activating factor (PAF) are involved in wheal development [1,2]. Because the symptoms of CIU, including oedema, erythema and pruritus, are primarily associated with histamine release from dermal mast cells, oral H1- receptor inverse agonists (H1 antihistamines) are the treatment of choice [2,7]. There is evidence that PAF and histamine have mutually complementary activities in vivo. Each mediator is able to promote the release of the other by different tissues and cells [8,9]. Dual blockades of these mediators is likely to be a more effective treatment strategy for CIU.

In chronic urticaria there are clinical trials and isolated observations with multiple treatments either as monotherapy or in combination, involving first and second-generation antihistamines, H2blockers, corticosteroids and many other drugs. Rupatadine is a novel selective long-acting histamine H1-receptor inverse agonist (H1 antihistamine), which is currently approved as a once daily dose of 10 mg. Rupatadine has recently been shown to have a higher affinity for the H1-receptor than fexofenadine and levocetirizine [10]. Rupatadine has shown both antihistamine and anti-PAF effects through its interaction with specific receptors and not due to physiological antagonism [11]. A previous dose-ranging study demonstrated that rupatadine 10 mg once daily for 4 weeks significantly decreased the severity of pruritus, the number of wheals and the total symptom score in patients with CIU, compared with placebo [12]. The aim of the present study was to compare efficacy and safety on CIU symptoms, treatment and patients’ satisfaction improvement with rupatadine monotherapy and combined levocetirizine and ranitidine dual therapy.

Materials and methods

The study was conducted complying the declaration of Helsinki 1964.This prospective, randomized controlled trial was  carried   out   in the outpatient department of dermatology and venereology, Bangabandhu Sheikh Mujib Medical University, Dhaka from April, 2020 to September 2020.  Total 40 cases of CIU were selected. Patients were randomly allocated into two groups in a single blind fashion, group A and group B. Group A  received conventional combination therapy (levocetirizine 5mg once daily plus ranitidine 150 mg twice daily for 4 weeks) while group B  received oral rupatadine (10 mg once daily for 4 weeks.). The participants were evaluated one, and four weeks after commencement of the study. They were evaluated for improvement in symptoms (mainly pruritus), appearance of new lesions or resolution of previous ones. Count of lesions on the body was documented on every visit, for further evaluation of response to treatment. Data were collected anonymously. Confidentiality of data was ensured adequately and any unauthorized access to data was not possible. Collected data was analyzed statistically by using SPSS-12 (Chicago, Illinois).

Inclusion criteria: Patients with CIU (i.e. episodes of hives of characteristic wheal and flare appearance, occurring regularly, at least three times a week) for a period of at least 6 weeks during the last 3 months without an identifiable cause whose age was between 18 to 60 and attending OPD of Dermatology and Venereology, BSMMU, were recruited into the study.

Exclusion criteria: 

1. Patients with physical urticaria (e.g. solar, heat, cold, aquagenic, cholinergic, contact, pressure, etc.),

2. Drug-induced urticaria, urticarial vasculitis, senile pruritus or hereditary angioedema.

3.  Patients with any dermatological or any other clinically significant disease. 

4. Patients who had received systemic and topical corticosteroids within last 4 weeks, desloratadine,      loratadine, levocetirizine or cetirizine within 10 days, astemizole within 12 weeks, ketotifen within 2 weeks and patients who had received CNS acting agents (including tranquilizers, antidepressants, sedatives, hypnotics or antiepileptic) at any time. 

5. Pregnant or breast feeding women.            

Results

This prospective, randomized controlled trial was conducted in the department of Dermatology and Venereology, BSMMU, Dhaka to compare the safety and efficacy and adverse effect between oral levocetirizine plus ranitidine combination and oral rupatadine alone therapy in CIU.A total of forty patients were included, twenty of them were given oral levocetirizine 5 mg once daily and oral ranitidine 150 mg twice daily. This group was designated as Group-A. .Twenty of them was given oral rupatadine 10 mg once daily .This group was designated as Group-B. In this study, 26 patients were male and 14 patients were female, male- female ratio was 1.86:1.Both groups were treated for one month. After collection of data, the data were assessed and analyzed with SPSS 12. The comparison between means was done by Independent sample‘t’ test for continuous variable. The result was considered significant if p value was ≤0.05. 

A total of forty patients were included, twenty of them were given oral levocetirizine 5 mg once daily and oral ranitidine 150 mg twice daily(Group-A.) Other twenty were given oral rupatadine 10 mg once daily. (Group-B). Both groups were treated for one month. Among the respondents, most of the patients (60%) in group A and (50%) in group B) were in the < 30> 40 years age group (Table 1). The mean age of the patients was 28.5 years and 30.85 years for group A and group B respectively. Lowest and highest ages were 18 and 55 years respectively. It appears from the study that 70% in group A and 60% in group B were male and 30% in group A and 40 % in group B were female (Table 1).

Table 1: Sociodemographic variables of the respondents (n=40)
Figure 1: Age and sex distribution of the respondents

Current study revealed that 75% patients in group A and 80% patients in group B responded to treatment initially (Figure 2). In the first follow up visit, doctors examined each patient. The enrolled patient who had no itching, whales was considered cured. Patients whose itching was reduced and size and number of the lesions decreased, was considered responding to treatment. The patients who had new or persistent lesions were considered not cured. At first week of intervention uncured patients were prescribed repeat interventions. There was no significant difference in response to treatment between the two groups.

Figure 2: Treatment response (%)

Current study showed 80% patients in group A and 85% patients in group B showed improvement in itching in the first week. At the end of 4 weeks 95% patients showed improvement and it was equal in each group (Table 2). 

Table 2: Distribution of patient according to improvement of itching (n=40)

At 1st week, 2 patients in group A and 1 patient in group B had new lesions i.e. lesions at sites different from the primary lesions. After 4 week, 1 patient in group - A still had new lesion whereas, there was no new lesion appearing in the group - B patients (Table 3). Result was slightly better for group B, but not statistically significant.

Table 3: Distribution of patient according to appearance of new lesion (n=40)

Current study revealed 75% of the patients in group A and 80% patients in group B had regression in their lesions in terms of disappearance, decrease in size, shape and distribution of the lesion at the end of first week. At the end of 4th week, 85% patients in group A and 90% patients in group B showed clinical improvement (Figure 3). The difference is again statistically insignificant.

Figure 3: Regression of size and shape of the lesions (%)

All the three drugs included in this study were safe and was associated with very few side effects. Only one patient among 40 complained of mild sedation with rupatidine 10 mg after 1 week of treatment. Two patients in group A (levocetirizine plus ranitidine) complained of headache which is known side effect of levocetirizine. Another patient complained of somnolence which was again in the group A and was due to livocetirizine.  Other common side effects of drugs like anaemia, jaundice, skin rashes were not seen among any group of patients. Overall occurrence of side effects (3 compared to 1) was more in group A and although clinically mild, difference was statistically significant (Table 4).

Table 4: Distribution of patient according to side effects (n=40)

Post treatment follow up of patients was done 4 weeks after completion of treatment. It showed that 40% patients in group A and 25% patients in group B had relapse of itching in the previous site which was statistically significant. 20% patients in group A and 15% patients in group B had new lesions at sites different from the primary lesion. 35% patients in group A and 20% patients in group B had relapse of their previous lesions (Table 5). The differences were statistically significant. Thus, rupatadine showed significant improvement in relapse rate of CIU lesion over conventional treatment which is the main concern of CIU treatment at present.

Table 5: Distribution of patients according to clinical observation after 4 weeks after completion of treatment (n=40)

It was quite evident that patient preferred single daily dosing (rupatadine) then taking 3 drugs daily at two different times. Patient’s satisfaction about treatment regime was randomly categorized as A (excellent), B (moderate) and C (not satisfied). 95% of Group– B patients were highly satisfied regarding treatment regime and described dose schedule as easy and convenient. On the other hand, 65% of the patients in group – A were moderately satisfied (B), 5% not satisfied at all (C) complaining of cumbersome dosing schedule (Table 6). Difference was statistically significant.

Table 6: Distribution of patient according to patient satisfaction (n=40)

Discussion

CIU is a highly prevalent in the general population which affects the quality of life [7, 14, 15, 16]. It is defined as the presence of wheals on a recurrent basis, more than twice a week, and during over six consecutive weeks [15,16].  Some studies show CIU accounts for nearly 75% of all cases of chronic urticaria [13]. Besides being severely debilitating and disfiguring, CIU may also be potentially stigmatizing. Chronic urticaria etiology is often unknown [1]. There is increasing evidence for basophil and mast cell-mediated inflammation in urticaria and angio-oedema. Histamine and other mast cell mediators [including eicosanoids, cytokines, proteases, kinins and platelet activating factor (PAF) are involved in wheal development [1,2]. There is evidence that PAF and histamine have mutually complementary activities in vivo. Each mediator is able to promote the release of the other by different tissues and cells [8,9]. Dual blockades of these mediators is likely to be a more effective treatment strategy for CIU.

Clinical trials revealed multiple treatment options such as first- and/or second generation antihistamines, H2 antihistamines, leukotriene antagonists, corticoids,cyclosporine and other immunosuppressors, calcineurin inhibitors, sulfasalazine, intravenous immunoglobulins, plasmapheresis or phototherapy [15]. Consequently, non-sedating (or second-generation) H1 antihistamines are considered as the first line symptomatic treatment [15, 16].  Rupatadine is a new potent nonsedative reverse H1 agonist and 10 mg of rupatadine is a fast, long-acting, efficacious and safe treatment option for the management of CIU [21].  There have been fewer studies with head to head comparison of individual antihistamines and combination of multiple options with a single antihistamine [7, 12, 15, 16].

In this study, 75% patients in group A and 80% patients in group B responded to treatment, however, the difference was not statistically significant. The study revealed that, 80% patients in group A and 85% patients in group B showed improvement in itching in the first week. In this study, at 1st week, 2 patients in group A and 1 patient in group B had new lesions and after 4 week, 1 patient in group - A still had new lesion whereas, there was no new lesion appearing in the group - B patients. Again, the difference was not statistically significant. In this study, 75% of the patients in group A and 80% patients in group B had regression in their lesions in terms of disappearance, decrease in size, shape and distribution of the lesion at the end of first week and at the end of 4th week, 85% patients in group A and 90% patients in group B showed clinical improvement. Current study revealed 40% patients in group A and 25% patients in group B had relapse of itching in the previous site; 20% patients in group A and 15% patients in group B had new lesions at sites different from the primary lesion; 35% patients in group A and 20% patients in group B had relapse of their previous lesions. The differences were statistically significant. This finding is also supported by other studies [2, 7, 12, 15, 16]. Thus rupatadine showed significant improvement in relapse rate of CIU lesion over conventional treatment which is the main concern of CIU treatment at present which is supported by other placebo control studies [16]. Though, head to head studies is yet too compared. All the three drugs included in this study were safe and was associated with very few side effects. Only one patient among 40 complained of mild sedation with rupatadine 10 mg after 1 week of treatment. Two patients in group - A (levocetirizine plus ranitidine) complained of headache which is known side effect of levocetirizine. Another patient complained of somnolence which was again in the group A and was due to livocetirizine.  Other common side effects of drugs like anaemia, jaundice, skin rashes were not seen among any group of patients. Overall occurrence of side effects (3 compared to 1) was more in group A and although clinically mild, difference was statistically significantIt was quite evident that patient preferred single daily dosing (rupatadine) then taking 3 drugs daily at two different times. Patient’s satisfaction in found more in rupatadine group than the other group and the difference was statistically significant. This finding is supported by other repeated studies [2, 7, 12, 15, 16].

The present study had the following limitations. Factors should be kept in mind while deciding on the implications of the findings of the study such as the small sample size, lack of objective assessment tools, single center-based study. Additional rigorously conducted prospective randomized trials with large sample sizes, full reporting of outcomes and double blinding of assessors are required. Increase transparency is needed if the sample cohort of patients is reported on in different studies and avoidance of multiple publications is strongly recommended.

Conclusion

The result of the present study show that both conventional treatment with levocetirizine and ranitidine combination and newer agent rupatadine alone has similar efficacy in reducing clinical sign and symptoms of CIU. But rupatadine has significantly reduced the relapse rate and so it is more efficacious and also safer option with less adverse effects for the treatment of CIU in comparison to conventional treatment. Rupatadine is also more convenient option for patients in term of dosage schedule.

Limitation of Study

The present study did not represent the actual scenario in Bangladesh because it was conducted in one tertiary level hospital (BSMMU) in Dhaka city only. Sample size and duration of the study was short. The long term results of the operative procedure could not be assessed. There is also lack of appropriate disease severity assessment tool.

Conflict of interest

There were no conflicts of interests

Ethical Clearance

Appropriately taken

Funding

Self-funded

References

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Lin Shaw Chin

Clinical Cardiology and Cardiovascular Interventions, I would like to express my sincerest gratitude for the trust placed in our team for the publication in your journal. It has been a true pleasure to collaborate with you on this project. I am pleased to inform you that both the peer review process and the attention from the editorial coordination have been excellent. Your team has worked with dedication and professionalism to ensure that your publication meets the highest standards of quality. We are confident that this collaboration will result in mutual success, and we are eager to see the fruits of this shared effort.

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Maria Dolores Gomez Barriga

Dear Dr. Jessica Magne, Editorial Coordinator 0f Clinical Cardiology and Cardiovascular Interventions, I hope this message finds you well. I want to express my utmost gratitude for your excellent work and for the dedication and speed in the publication process of my article titled "Navigating Innovation: Qualitative Insights on Using Technology for Health Education in Acute Coronary Syndrome Patients." I am very satisfied with the peer review process, the support from the editorial office, and the quality of the journal. I hope we can maintain our scientific relationship in the long term.

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Dr Maria Dolores Gomez Barriga

Dear Monica Gissare, - Editorial Coordinator of Nutrition and Food Processing. ¨My testimony with you is truly professional, with a positive response regarding the follow-up of the article and its review, you took into account my qualities and the importance of the topic¨.

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Dr Maria Regina Penchyna Nieto

Dear Dr. Jessica Magne, Editorial Coordinator 0f Clinical Cardiology and Cardiovascular Interventions, The review process for the article “The Handling of Anti-aggregants and Anticoagulants in the Oncologic Heart Patient Submitted to Surgery” was extremely rigorous and detailed. From the initial submission to the final acceptance, the editorial team at the “Journal of Clinical Cardiology and Cardiovascular Interventions” demonstrated a high level of professionalism and dedication. The reviewers provided constructive and detailed feedback, which was essential for improving the quality of our work. Communication was always clear and efficient, ensuring that all our questions were promptly addressed. The quality of the “Journal of Clinical Cardiology and Cardiovascular Interventions” is undeniable. It is a peer-reviewed, open-access publication dedicated exclusively to disseminating high-quality research in the field of clinical cardiology and cardiovascular interventions. The journal's impact factor is currently under evaluation, and it is indexed in reputable databases, which further reinforces its credibility and relevance in the scientific field. I highly recommend this journal to researchers looking for a reputable platform to publish their studies.

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Dr Marcelo Flavio Gomes Jardim Filho

Dear Editorial Coordinator of the Journal of Nutrition and Food Processing! "I would like to thank the Journal of Nutrition and Food Processing for including and publishing my article. The peer review process was very quick, movement and precise. The Editorial Board has done an extremely conscientious job with much help, valuable comments and advices. I find the journal very valuable from a professional point of view, thank you very much for allowing me to be part of it and I would like to participate in the future!”

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Zsuzsanna Bene

Dealing with The Journal of Neurology and Neurological Surgery was very smooth and comprehensive. The office staff took time to address my needs and the response from editors and the office was prompt and fair. I certainly hope to publish with this journal again.Their professionalism is apparent and more than satisfactory. Susan Weiner

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Dr Susan Weiner

My Testimonial Covering as fellowing: Lin-Show Chin. The peer reviewers process is quick and effective, the supports from editorial office is excellent, the quality of journal is high. I would like to collabroate with Internatioanl journal of Clinical Case Reports and Reviews.

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Lin-Show Chin

My experience publishing in Psychology and Mental Health Care was exceptional. The peer review process was rigorous and constructive, with reviewers providing valuable insights that helped enhance the quality of our work. The editorial team was highly supportive and responsive, making the submission process smooth and efficient. The journal's commitment to high standards and academic rigor makes it a respected platform for quality research. I am grateful for the opportunity to publish in such a reputable journal.

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Sonila Qirko

My experience publishing in International Journal of Clinical Case Reports and Reviews was exceptional. I Come forth to Provide a Testimonial Covering the Peer Review Process and the editorial office for the Professional and Impartial Evaluation of the Manuscript.

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Luiz Sellmann