Benralizumab Effect on Severe Chronic Rhinosinusitis With Eosinophilic Polyposis

January 20, 2021 updated by: Johns Hopkins University

Benralizumab Effect on Severe Chronic Rhinosinusitis With Eosinophilic Polyposis: A Phase II Randomized Placebo Controlled Trial

Benralizumab will be used in a placebo controlled randomized study to treat severe chronic rhinosinusitis with nasal polyps

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Chronic rhinosinusitis (CRS) has a prevalence of more than 10% in the United States and Europe and is associated with several co-morbidities including asthma, acute infection, and obstructive sleep apnea. There are principally two forms of CRS namely with and without nasal polyps. CRS with nasal polyps (CRSwNP) in particular can be a severe and debilitating disease resulting in significant morbidity, complete anosmia, headaches, missed work, and hospitalizations. Not uncommonly, patients require chronic oral corticosteroids, multiple courses of antibiotics, and repeated surgical polypectomies to control participants' disease. Total health care expenditure for CRS (which includes both with and without polyps) is more than $60 billion annually in the United States accounting for as much as 5% of the total US health care budget. Annual direct and indirect costs to treat CRS in Europe is estimated to be similar to this amount but data is limited.

For CRSwNP patients suffering with severe and recurrent nasal polyps there are few treatment options. High dose topical nasal steroids and repeated surgical procedures do not halt progression in many patients. Allergen immunotherapy is often non-curative in this population. Similarly, due to the fact that CRSwNP is not exclusively an Immunoglobulin E (IgE) driven process, omalizumab was shown to have mixed benefit in this population. Likewise, omalizumab resulted in no reduction in polyp size among patients with Aspirin Exacerbated Respiratory Disease (AERD).

More typically chronic nasal polyp disease is an eosinophil mediated process. Patients with demonstrated elevations in serum and mucosal eosinophils tend to have more severe disease and higher nasal polyp recurrence rates. Clinical researchers have begun to recognize this connection. A recent Phase II study in Europe showed a reduction in polyp burden using mepolizumab anti-Interleukin (IL) 5 monoclonal antibody. Benralizumab which targets IL-5 receptor signaling has been shown to have powerful apoptotic effects on eosinophils and may likely prove to be even more efficacious. Because of its unique mechanism of action, benralizumab may have a profound impact on reducing mucosal eosinophils resulting in great benefit to patients suffering with severe nasal polyps refractory to standard treatment.

Benralizumab has been shown to be efficacious treating severe asthmatics with eosinophilia. The unique mechanism of action of benralizumab targets the IL-5 receptor leading to degradation of signaling and apoptosis. This direct effect on eosinophils leads to reduction of proinflammatory processes in the asthmatic airways among those with elevated eosinophil counts. While many subjects with allergic asthma do indeed have concomitant local and systemic elevations in eosinophils, the primary driver of inflammation in allergic asthmatics is IgE and IL-4. Allergen immunotherapy and anti-IgE therapy (omalizumab) has long been known to be effective in these atopic individuals. However, a significant portion of non-asthmatics respond poorly to these IgE targeted therapies.

In a similar manner, chronic rhinosinusitis with nasal polyps (CRSwNP) is a disease often associated with atopy and propagated by IgE/IL-4 mediated inflammation. However, more than 50% of patients with CRSwNP have no evidence of allergen sensitivity. Nasal and sinus inflammation in these non-atopic individuals is often characterized by IL-5 upregulation, eosinophilia, leukotrienes, and more severe polyps. These individuals tend to have more aggressive disease requiring frequent surgeries, high dose intranasal budesonide irrigation, and oral steroids yet the polyps more often than not are persistent and may return post surgery. In a subset of patients, concomitant aspirin sensitivity can be managed with aspirin desensitization, however this approach is not always effective and can also be cumbersome. A more universal and potentially more efficient approach to treating severe polyps is to target eosinophils directly using a monoclonal antibody. Previous reports have shown some benefit targeting IL-5 ligand itself with mepolizumab but the potential benefit of directly eliminating eosinophils by shutting down cellular signaling with benralizumab would be expected to have a more dramatic effect and needs to be investigated.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
33

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Maryland
      • Baltimore, Maryland, United States, 21224
        • Johns Hopkins University School of Medicine

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Adults aged 18-75
  • Severe bilateral nasal polyps with average endoscopic score of at least 5
  • Blood eosinophil count of at least 300/ul at screening
  • At least 1000mg prednisone (or equivalent) over the previous 12 months to control symptoms
  • At least one prior nasal surgical polypectomy
  • Informed Consent: Able to give written informed consent prior to participation in the study, which will include the ability to comply with the requirements and restrictions listed in the consent form. Subjects must be able to read, comprehend, and write at a level sufficient to complete study related materials.
  • Female subjects: Women of childbearing potential (WOCBP) must use an effective form of birth control (confirmed by the Investigator). Effective forms of birth control include: true sexual abstinence, a vasectomized sexual partner, Implanon, female sterilization by tubal occlusion, any effective Intra-uterine device (IUD) intrauterine device/ levonogestrel Intrauterine system (IUS), Depo-Provera(tm) injections, oral contraceptive, and Evra Patch(tm) or Nuvaring(tm). WOCBP must agree to use effective method of birth control, as defined above, from enrolment, throughout the study duration and within 16 weeks after last dose of IP, and have negative serum pregnancy test result on Visit 0.
  • Women not of childbearing potential are defined as women who are either permanently sterilized (hysterectomy, bilateral oophorectomy, or bilateral salpingectomy), or who are postmenopausal. Women will be considered postmenopausal if they have been amenorrheic for 12 months prior to the planned date of visit -1 without an alternative medical cause. The following age-specific requirements apply:
  • Women <50 years old would be considered postmenopausal if they have been amenorrheic for 12 months or more following cessation of exogenous hormonal treatment and follicle stimulating hormone (FSH) levels in the postmenopausal range.
  • Women ≥50 years old would be considered postmenopausal if they have been amenorrheic for 12 months or more following cessation of all exogenous hormonal treatment.
  • All male subjects who are sexually active must agree to use an acceptable method of contraception (condom with or without spermicide, vasectomy) from Visit 0 until 16 weeks after their last dose.

Exclusion Criteria:

  • Immunosuppression other than oral steroids in the past 3 months
  • Allergen immunotherapy build up phase in the past 3 months
  • Symptomatic or untreated life threatening cardiopulmonary disorders
  • Subjects who are febrile (≥38°C; ≥100.4°F);
  • History of cancer: Subjects who have had basal cell carcinoma, localized squamous cell carcinoma of the skin, or in situ carcinoma of the cervix are eligible provided that the subject is in remission and curative therapy was completed at least 12 months prior to the date informed consent, and assent when applicable was obtained. Subjects who have had other malignancies are eligible provided that the subject is in remission and curative therapy was completed at least 5 years prior to the date informed consent, and assent when applicable, was obtained.
  • A helminth parasitic infection diagnosed within 24 weeks prior to the date informed consent is obtained that has not been treated with, or has failed to respond to standard of care therapy.
  • Pregnant or nursing
  • If female and of child-bearing potential, positive pregnancy test or failure to adhere to acceptable method of contraception (with <1% failure rate) during the study and for four months after the study.
  • Receipt of any investigational non biologic within 30 days or 5 half-lives prior to visit 0, whichever is longer.
  • A history of known immunodeficiency disorder including a positive human immunodeficiency virus (HIV) test.
  • Any other medical illness that precludes study involvement
  • Positive hepatitis B surface antigen, or hepatitis C virus antibody serology, or a positive medical history for hepatitis B or C. Subjects with a history of hepatitis B vaccination without history of hepatitis B are allowed to be enrolled.
  • Patients who are currently receiving or have previously received benralizumab or any other type of anti-interleukin therapy (i.e. mepolizumab, reslizumab, lebrikizumab etc.) within the last 4 months or 5 half-lives whichever is longer.
  • History of anaphylaxis to any biologic therapy or vaccine.
  • Receipt of immunoglobulin or blood products within 30 days prior to the date informed consent is obtained.
  • Receipt of live attenuated vaccines within 30 days of starting the study drug.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Active Comparator: Benralizumab treatment group
Benralizumab Active treatment group delivered subcutaneously
Drug: Benralizumab
30mg Benralizumab will be delivered subcutaneously
Other Names:
  • Fasenra
Placebo Comparator: Placebo group
Placebo treatment group delivered subcutaneously
Drug: Placebo
Subcutaneous placebo injection

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Change in Nasal Polyp Score
Time Frame: Week 5 and Week 25

Change in endoscopic nasal polyp score after 6 months of treatment. Nasal Polyp Score (NPS): the change in mean score from Screen visit (Week 5) bilateral endoscopic nasal polyp score as compared to score at end of treatment (Week 25). Higher scores indicate increase in number of polyps and/or polyp size. The score is the sum of the right and left nostril scores, as evaluated by nasal endoscopy.

NPS score key: 0 = No visible polyps; 1 = Small amount of polypoid disease confined within the middle meatus; 2 = Multiple polyps occupying the middle meatus; 3 = Polyps extending beyond the middle meatus; 4 = Polyps completely obstructing the nasal cavity.

Reported data is a difference in the NPS between Week 25 and Week 5.
Week 5 and Week 25

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Change in Nasal Polyp Size as Assessed by the Lund Mackay Score
Time Frame: Week 5 and Week 25

Computed Tomography (CT) scan of the sinus was performed at screening (Week 5) and then again at the end of treatment (Week 25). Sinus CT images were obtained to determine the Lund Mackay Score (LMS), a widely used method for radiologic staging of nasal polyposis. The mean change in the LMS was determined by comparing the scores from Week 5 to Week 25. Each sinus group is graded between 0 and 2 (0: no abnormality; 1: partial opacification; 2: total opacification). The ostiomeatal complex is scored as "0" not obstructed) or "2" (obstructed). Overall score range of 0-24. Higher scores indicate progression of nasal polyposis disease.

Reported data is a difference in the LMS between Week 25 and Week 5.
Week 5 and Week 25
Change in Symptom Severity Score as Assessed by the Sino-nasal Outcome Test
Time Frame: Treatment Week 0 and Week 20
The Sino-nasal Outcome Test (SNOT-22) is a condition-specific health-related quality of life assessment that captures patient-reported physical problems, functional limitations, and emotional consequences of sinonasal conditions for the 2 weeks prior to completing the test. Participants completed the SNOT-22 at treatment Week 0 and at Treatment Week 20. Patients rated their symptom severity and symptom impact over the previous 2 weeks using a 6-point scale (0- No Problem to 5- Problem as bad as it can be). The total score is the sum of individual item scores and has a range from 0 to 110. Higher scores indicate more severe symptoms. Outcome measure data shows change in SNOT-22 scores between treatment Week 20 and Week 0.
Treatment Week 0 and Week 20
Change in The University of Pennsylvania Smell Identification Test Score
Time Frame: Week 5 and Week 25

The University of Pennsylvania Smell Identification Test (UPSIT) is a quantitative test of olfactory function that uses microencapsulated odorants that are released by scratching standardized odor-impregnated test booklets. Four booklets with 10 questions in each booklet on odor identification. Patients were asked to identify the odor by scratching the test area then selecting their answer using multiple-choice format that lists 4 different possible answers for each question. The mean change in the UPSIT was determined by comparing the score from Week 5 to the score in Week 25. The test is a forced-choice test meaning the patient is required to mark one of the four answers even if a smell is not perceived. Scores are based on number of correctly identified odors (score range 0 to 40). Higher scores indicate subject's ability to correctly identify odors.

Reported data is a difference in the UPSIT score between Week 25 and Week 5.
Week 5 and Week 25
Change in Absolute Eosinophil Count
Time Frame: Assessed at Treatment Week 0 and Week 20
Complete Blood Count (CBC) to determine change in absolute eosinophil count. Normal Range 30-300 cells/uL.
Assessed at Treatment Week 0 and Week 20
Utilization of Prednisone as a Rescue Medication
Time Frame: 20 weeks
Use of Prednisone as a rescue medication during the treatment phase (week 0 through week 20) was measured in total milligrams (mg) that were taken by participant.
20 weeks
Time to Surgery
Time Frame: 24 weeks
24 weeks
Number of Participants Who Dropped Out
Time Frame: Up to 29 weeks
Number of participants who dropped out monitored continuously throughout the study up to 29 weeks.
Up to 29 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Johns Hopkins University

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Jody Tversky, MD, Johns Hopkins University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
July 1, 2017

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
January 1, 2020

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
February 1, 2020

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
August 17, 2017

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 22, 2018

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
March 1, 2018

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
February 11, 2021

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 20, 2021

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
January 1, 2021

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • IRB00112910

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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