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| Name | Class |
|---|---|
| American Academy of Otolaryngic Allergy | OTHER |
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The proposed study seeks to investigate the effect of intranasal capsaicin treatment in patient with Non-allergic irritant rhinitis (NAIR), as well as evaluate optical rhinometry (ORM) as a means to quantify symptomatic improvement in NAIR patients during and after treatment.
A study by Lambert et. al. (2012) was able to objectively identify patients with NAIR by intranasal capsaicin challenge followed by assessment with optical rhinometry. Studies have shown that capsaicin therapy can improve symptoms of patients historically identified with NAIR via visual analog scale (VAS) rating of symptoms and symptom surveys; however, there has been no study evaluating the capsaicin therapy on patients objectively identified as NAIR patients.
Multiple studies have demonstrated that intranasal capsaicin can improve nasal symptoms of NAIR patients. Regarding the usage of capsaicin, there is a product on the market: Sinus Buster which has capsaicin as the active ingredient. Numerous research papers have evaluated the efficacy and safety of Sinus Buster for the treatment of congestion in non-allergic rhinitis patients. However, the diagnosis of NAIR in these previous studies was based primarily on history. In addition, the primary outcome in these studies was symptomatic without any objective evaluation. The goal of this study will be two-fold: with patients objectively identified as NAIR patients via the optical rhinometer, we will re-evaluate the therapeutic action of intranasal capsaicin on the management of rhinitic symptoms. We expect that the patients will show significant improvement in their symptoms. We will then use optical rhinometry as a means to objectively monitor changes in symptoms in NAIR patients. We expect that post treatment, patients will no longer have the positive response previously seen on intranasal capsaicin challenge before receiving treatment. We hope to be able to establish optical rhinometry as an objective measurement of symptom improvement for NAIR symptoms, along with the subjective patient surveys.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| intranasal capsaicin | Experimental | The capsaicin solution will be prepared by using the formula previously reported by Van Rijswijk et al; (0.1mmol/l) diluted in ethanol and 0.9% normal saline (19). Using the mucosal atomizer device (MAD), 0.8 milliliters (mL) will be delivered to each nasal cavity for a total of 24.4 ug per nasal cavity. 5 consecutive applications of capsaicin or placebo will be administered intranasally, with 1 hour between each application. |
|
| Vehicle solution | Placebo Comparator | 100 μL of 1% ethanol in 0.9% saline solution. 5 consecutive applications of capsaicin or placebo will be administered intranasally, with 1 hour between each application. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Capsaicin | Drug |
|
| |
| Placebo |
| Measure | Description | Time Frame |
|---|---|---|
| Change in Total Symptom Score | The Total Symptom Score (TSS) uses a visual analog scale (VAS) to assess typical nasal symptoms of non-allergic rhinitis (NAR), including sneezing, nasal irritation, nasal obstruction, and nasal congestion. The TSS is based on a commonly used rhinitis rating system recommended by the FDA for clinical trial studies on non-allergic rhinitis. 4 symptoms (sneezing, nasal irritation, nasal obstruction, and nasal congestion) are rated on a VAS ranging from 0 (none, no distress) to 10 (agonizing, unbearable distress). The TSS total score is the sum of the VAS score for each of the 4 symptoms, with the TSS total score ranging from 0 (none, no distress) to 40 (agonizing, unbearable distress). | baseline and 4 weeks |
| Change in Total Symptom Score | The Total Symptom Score (TSS) uses a visual analog scale (VAS) to assess typical nasal symptoms of non-allergic rhinitis (NAR), including sneezing, nasal irritation, nasal obstruction, and nasal congestion. The TSS is based on a commonly used rhinitis rating system recommended by the FDA for clinical trial studies on non-allergic rhinitis. 4 symptoms (sneezing, nasal irritation, nasal obstruction, and nasal congestion) are rated on a VAS ranging from 0 (none, no distress) to 10 (agonizing, unbearable distress). The TSS total score is the sum of the VAS score for each of the 4 symptoms, with the TSS total score ranging from 0 (none, no distress) to 40 (agonizing, unbearable distress). | baseline and 12 weeks |
| Change in Nasal Blood Flow as Indicated by Change in Maximal Optical Density Assessed by Optical Rhinometry | Optical rhinometry provides continuous measurement of blood flow in nasal vessels (via optical density measurements), which serves as an indirect assessment of nasal congestion. A greater decrease in optical density (OD) from baseline indicates less nasal blood flow and decreased congestion relative to baseline. | baseline and 4 weeks |
| Change in Nasal Blood Flow as Indicated by Change in Maximal Optical Density Assessed by Optical Rhinometry |
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Inclusion criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Amber U Luong, MD, PhD | The University of Texas Health Science Center, Houston | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| The University of Texas Health Science Center at Houston | Houston | Texas | 77030 | United States |
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| ID | Title | Description |
|---|---|---|
| FG000 | Intranasal Capsaicin | The capsaicin solution will be prepared by using the formula previously reported by Van Rijswijk et al; (0.1mmol/l) diluted in ethanol and 0.9% normal saline (19). Using the mucosal atomizer device (MAD), 0.8 millimeters (mL) will be delivered to each nasal cavity for a total of 24.4 ug per nasal cavity. 5 consecutive applications of capsaicin or placebo will be administered intranasally, with 1 hour between each application. Capsaicin |
| FG001 | Vehicle Solution | 100 μL of 1% ethanol in 0.9% saline solution. 5 consecutive applications of capsaicin or placebo will be administered intranasally, with 1 hour between each application. Placebo |
| Title | Milestones | Reasons Not Completed | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Overall Study |
|
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| ID | Title | Description |
|---|---|---|
| BG000 | Intranasal Capsaicin | The capsaicin solution will be prepared by using the formula previously reported by Van Rijswijk et al; (0.1mmol/l) diluted in ethanol and 0.9% normal saline (19). Using the MAD, 0.8 millimeters (0.8mL) will be delivered to each nasal cavity for a total of 24.4 ug per nasal cavity. 5 consecutive applications of capsaicin or placebo will be administered intranasally, with 1 hour between each application. Capsaicin |
| Units | Counts |
|---|---|
| Participants |
|
| Title | Description | Population Description | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Denominator Units Selected | Denominators | Classes |
|---|---|---|---|---|---|---|---|---|---|
| Age, Continuous | Mean |
| Type | Title | Description | Population Description | Reporting Status | Anticipated Posting Date | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Time Frame | Units Analyzed | Denominator Units Selected | Arm/Group Information | Denominators | Classes | Analyses | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Primary | Change in Total Symptom Score | The Total Symptom Score (TSS) uses a visual analog scale (VAS) to assess typical nasal symptoms of non-allergic rhinitis (NAR), including sneezing, nasal irritation, nasal obstruction, and nasal congestion. The TSS is based on a commonly used rhinitis rating system recommended by the FDA for clinical trial studies on non-allergic rhinitis. 4 symptoms (sneezing, nasal irritation, nasal obstruction, and nasal congestion) are rated on a VAS ranging from 0 (none, no distress) to 10 (agonizing, unbearable distress). The TSS total score is the sum of the VAS score for each of the 4 symptoms, with the TSS total score ranging from 0 (none, no distress) to 40 (agonizing, unbearable distress). | Posted | Median | Inter-Quartile Range | score on a scale | baseline and 4 weeks |
|
12 weeks
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| ID | Title | Description | Deaths (Affected) | Deaths (At Risk) | Serious Events (Affected) | Serious Events (At Risk) | Other Events (Affected) | Other Events (At Risk) |
|---|---|---|---|---|---|---|---|---|
| EG000 | Intranasal Capsaicin | The capsaicin solution will be prepared by using the formula previously reported by Van Rijswijk et al; (0.1mmol/l) diluted in ethanol and 0.9% normal saline (19). Using the MAD, 0.8mL will be delivered to each nasal cavity for a total of 24.4 ug per nasal cavity. 5 consecutive applications of capsaicin or placebo will be administered intranasally, with 1 hour between each application. Capsaicin |
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Small sample size; 2 patients lost to follow-up at 12 weeks; inability to identify NAR patients with elevated local Immunoglobulin E (IgE) levels, which may contribute to limited improvement in some NAR patients in the intervention group.
| Title | Organization | Phone | Extension | |
|---|---|---|---|---|
| Dr. Amber U. Luong, Associate Professor and Director of Research | The University of Texas Health Science Center at Houston | (713) 500-5410 | Amber.U.Luong@uth.tmc.edu |
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| Type | Includes Protocol | Includes SAP | Includes ICF | Document Label | Document Date | Document Uploaded Date | Document File Name |
|---|---|---|---|---|---|---|---|
| Prot_SAP | Yes | Yes | No | Study Protocol and Statistical Analysis Plan | Nov 18, 2019 | Jul 27, 2020 | Prot_SAP_000.pdf |
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| ID | Term |
|---|---|
| D015508 | Nasal Obstruction |
| D000086722 | Rhinorrhea |
| ID | Term |
|---|---|
| D009668 | Nose Diseases |
| D012140 | Respiratory Tract Diseases |
| D000402 | Airway Obstruction |
| D012131 | Respiratory Insufficiency |
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| ID | Term |
|---|---|
| D002211 | Capsaicin |
| D000431 | Ethanol |
| D012965 | Sodium Chloride |
| ID | Term |
|---|---|
| D053284 | Polyunsaturated Alkamides |
| D000577 | Amides |
| D009930 | Organic Chemicals |
| D000475 | Alkenes |
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| Drug |
|
|
Optical rhinometry provides continuous measurement of blood flow in nasal vessels (via optical density measurements), which serves as an indirect assessment of nasal congestion. A greater decrease in optical density (OD) from baseline indicates less nasal blood flow and decreased congestion relative to baseline.
| baseline and 12 weeks |
| BG001 | Vehicle Solution | 100 μL of 1% ethanol in 0.9% saline solution. 5 consecutive applications of capsaicin or placebo will be administered intranasally, with 1 hour between each application. Placebo |
| BG002 | Total | Total of all reporting groups |
| years |
|
| Sex: Female, Male | Count of Participants | Participants |
|
| Race/Ethnicity, Customized | Count of Participants | Participants |
|
| Region of Enrollment | Count of Participants | Participants |
|
| OG001 | Vehicle Solution | 100 μL of 1% ethanol in 0.9% saline solution. 5 consecutive applications of capsaicin or placebo will be administered intranasally, with 1 hour between each application. Placebo |
|
|
| Primary | Change in Total Symptom Score | The Total Symptom Score (TSS) uses a visual analog scale (VAS) to assess typical nasal symptoms of non-allergic rhinitis (NAR), including sneezing, nasal irritation, nasal obstruction, and nasal congestion. The TSS is based on a commonly used rhinitis rating system recommended by the FDA for clinical trial studies on non-allergic rhinitis. 4 symptoms (sneezing, nasal irritation, nasal obstruction, and nasal congestion) are rated on a VAS ranging from 0 (none, no distress) to 10 (agonizing, unbearable distress). The TSS total score is the sum of the VAS score for each of the 4 symptoms, with the TSS total score ranging from 0 (none, no distress) to 40 (agonizing, unbearable distress). | Data was not collected for 1 participant in the intranasal capsaicin arm and 1 participant in the vehicle solution arm. | Posted | Median | Inter-Quartile Range | score on a scale | baseline and 12 weeks |
|
|
|
| Primary | Change in Nasal Blood Flow as Indicated by Change in Maximal Optical Density Assessed by Optical Rhinometry | Optical rhinometry provides continuous measurement of blood flow in nasal vessels (via optical density measurements), which serves as an indirect assessment of nasal congestion. A greater decrease in optical density (OD) from baseline indicates less nasal blood flow and decreased congestion relative to baseline. | Posted | Median | Inter-Quartile Range | log ratio of light in to light out (OD) | baseline and 4 weeks |
|
|
|
| Primary | Change in Nasal Blood Flow as Indicated by Change in Maximal Optical Density Assessed by Optical Rhinometry | Optical rhinometry provides continuous measurement of blood flow in nasal vessels (via optical density measurements), which serves as an indirect assessment of nasal congestion. A greater decrease in optical density (OD) from baseline indicates less nasal blood flow and decreased congestion relative to baseline. | Data was not collected for one participant in the intranasal capsaicin arm and for one participant in the vehicle solution arm. | Posted | Median | Inter-Quartile Range | log ratio of light in to light out (OD) | baseline and 12 weeks |
|
|
|
| 0 |
| 11 |
| 0 |
| 11 |
| 0 |
| 11 |
| EG001 | Vehicle Solution | 100 μL of 1% ethanol in 0.9% saline solution. 5 consecutive applications of capsaicin or placebo will be administered intranasally, with 1 hour between each application. Placebo | 0 | 11 | 0 | 11 | 0 | 11 |
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| D012120 |
| Respiration Disorders |
| D010038 | Otorhinolaryngologic Diseases |
| D012818 | Signs and Symptoms, Respiratory |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |
| D006839 |
| Hydrocarbons, Acyclic |
| D006838 | Hydrocarbons |
| D002396 | Catechols |
| D010636 | Phenols |
| D001555 | Benzene Derivatives |
| D006841 | Hydrocarbons, Aromatic |
| D006844 | Hydrocarbons, Cyclic |
| D012991 | Solanaceous Alkaloids |
| D000470 | Alkaloids |
| D006571 | Heterocyclic Compounds |
| D005229 | Fatty Acids, Monounsaturated |
| D005231 | Fatty Acids, Unsaturated |
| D005227 | Fatty Acids |
| D008055 | Lipids |
| D000438 | Alcohols |
| D002712 | Chlorides |
| D006851 | Hydrochloric Acid |
| D017606 | Chlorine Compounds |
| D007287 | Inorganic Chemicals |
| D017670 | Sodium Compounds |