Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where Chester C. Wood is active.

Publication


Featured researches published by Chester C. Wood.


The Journal of Allergy and Clinical Immunology | 1995

A clinical trial of ipratropium bromide nasal spray in patients with perennial nonallergic rhinitis

Edwin A. Bronsky; Howard M. Druce; Steven R. Findlay; Frank C. Hampel; Harold B. Kaiser; Paul H. Ratner; Martin D. Valentine; Chester C. Wood

Intranasal ipratropium bromide has been shown to significantly reduce rhinorrhea. Use of a freon-propelled intranasal preparation has resulted in side effects associated with the drying properties of the propellant. The purpose of the present trial was to study the safety and efficacy of a new isotonic aqueous ipratropium bromide nasal spray pump, specifically in patients with perennial nonallergic rhinitis. Two hundred thirty-three patients participated in an 8-week double-blind parallel comparison of ipratropium bromide nasal spray with its vehicle, a saline solution. Treatment with the ipratropium spray resulted in a 30% reduction in rhinorrhea; this reduction was significantly greater than that seen with the saline vehicle. There was a modest reduction in postnasal drip, sneezing, and congestion with both treatments, which may be attributable to the salutary effects of the saline solution. Patients also perceived a significant reduction in the degree to which rhinorrhea interfered with their daily activities and moods. Treatment was well tolerated, with no drug-related systemic adverse events and no evidence of nasal rebound on discontinuation of treatment. Minor, infrequent episodes of nasal dryness and epistaxis were the only significant adverse events reported; these did not limit treatment.


The Journal of Allergy and Clinical Immunology | 1992

Ipratropium bromide aqueous nasal spray for patients with perennial allergic rhinitis: A study of its effect on their symptoms, quality of life, and nasal cytology☆

Eli O. Meltzer; H.Alice Orgel; Edwin A. Bronsky; Steven R. Findlay; John W. Georgitis; Jay Grossman; Paul H. Ratner; Chester C. Wood

Ipratropium bromide is an anticholinergic agent with topical activity that has been studied as a freon-propelled aerosol spray for therapy of nonallergic rhinitis. This is the first report of its use both as an aqueous nasal spray and in perennial allergic rhinitis. In this study 123 patients who had symptoms of perennial allergic rhinitis were randomized to receive ipratropium bromide 21 micrograms or 42 micrograms or placebo, one spray per nostril three times a day for 4 weeks. Patients maintained daily diaries of duration and severity of nasal symptoms and were evaluated weekly. Mean duration and severity of rhinorrhea was decreased in both ipratropium bromide treatment groups by comparison with placebo, with consistently greatest improvement in the group treated with ipratropium bromide 42 micrograms per nostril three times a day. No statistically significant differences occurred among treatment groups in duration or severity of postnasal drip, congestion, or sneezing. Seventy percent of patients treated with 42 micrograms of ipratropium bromide thought it had good or excellent effect on rhinorrhea (p less than 0.05 vs placebo); significantly more patients thought that it had improved the quality of life (p = 0.02). No changes occurred in nasal cytology, and no significant local or systemic adverse events occurred. These data indicate that ipratropium bromide significantly decreases the rhinorrhea of perennial allergic rhinitis.


Annals of Allergy Asthma & Immunology | 1999

Comparison of ipratropium bromide 0.03% with beclomethasone dipropionate in the treatment of perennial rhinitis in children.

Henry Milgrom; Robert Biondi; John W. Georgitis; Eli O. Meltzer; Zev Munk; Kristin Drda; Chester C. Wood

OBJECTIVE To compare the safety and efficacy of ipratropium bromide 0.03% (IB) with beclomethasone dipropionate 0.042% (BDP) in the treatment of perennial rhinitis in children. METHODS Thirty-three children with nonallergic perennial rhinitis (NAPR) and 113 with allergic perennial rhinitis (APR) were randomly assigned to either IB or BDP for 6 months in a single-blind, multicenter protocol in which the physician was blinded to treatment. At each visit, patients and physicians rated symptom control of rhinorrhea, nasal congestion, and sneezing. Patients also completed quality of life questionnaires at baseline and after 6 months of therapy. RESULTS Both treatments showed a significant improvement in control of rhinorrhea, congestion, and sneezing compared with baseline over the 6 months of treatment (P < .05). Only for the control of sneezing was BDP consistently better than IB (P < .05). Among the patients given IB, 61% to 73% assessed the control of rhinorrhea as good or excellent on different study visit days, 43% to 60% similarly rated the control of nasal congestion, and 39% to 43% the control of sneezing. The results for BDP were 68% to 78% for the control of rhinorrhea, 55% to 72% for the control of nasal congestion, and 54% to 68% for the control of sneezing. Quality of life assessment documented that both drugs significantly reduced interference with daily activities and disturbance of mood due to rhinorrhea compared with baseline (P < .05). Both treatments were well tolerated with IB causing less nasal bleeding and irritation than BDP. CONCLUSIONS Ipratropium bromide was safe and effective in controlling rhinorrhea and diminishing the interference by rhinorrhea in school attendance, concentration on school work, and sleep. Ipratropium bromide was as effective as BDP in the control of rhinorrhea and showed a relatively good effect on congestion. Patient and physician assessment favored BDP in the control of sneezing.


The Journal of Allergy and Clinical Immunology | 1995

Product characteristics and pharmacokinetics of intranasal ipratropium bromide

Chester C. Wood; Philip Fireman; Jay Grossman; Margaret T. Wecker; Thomas MacGregor

The in vivo absorption potential of ipratropium bromide nasal spray was evaluated in studies involving healthy volunteers (0.03%, 0.06%, and 0.12% dosage strengths) and patients with perennial rhinitis (0.03% and 0.06%) and the common cold (0.06%). The dose used was two sprays per nostril, corresponding to a total dose of 84 micrograms, 168 micrograms, and 336 micrograms for the three dosage strengths. These studies indicate that 10% or less of active drug is absorbed systemically after nasal administration based on the amount of unchanged drug excreted in urine in a 24-hour interval. In most instances, the plasma drug concentrations were undetectable. In none of these studies did plasma ipratropium concentrations reach a level where systemic anticholinergic effects are known to occur.


The Journal of Allergy and Clinical Immunology | 1995

Use of ipratropium bromide nasal spray in chronic treatment of nonallergic perennial rhinitis, alone and in combination with other perennial rhinitis medications

Jay Grossman; Charles H. Banov; Peter Boggs; Edwin A. Bronsky; Robert J. Dockhorn; Howard M. Druce; Steven R. Findlay; John W. Georgitis; Frank C. Hampel; Harold B. Kaiser; Paul H. Ratner; David G. Tinkelman; Martin D. Valentine; Paul Roszko; Elena C. Zegarelli; Chester C. Wood

To study the long-term safety and effectiveness of ipratropium bromide nasal spray 0.03% in the treatment of nonallergic perennial rhinitis, we administered this medication for 1 year in an open-label trial involving 285 patients. Our intention was to maintain the highest protocol dose possible to gain a clearer picture of the long-term side effect profile of the compound. Ipratropium bromide was well tolerated with no serious side effects in this patient population. It provided a significant improvement in rhinorrhea throughout the year-long trial; only 17 of 285 patients (6%) were considered treatment failures. There was an improvement in patient quality of life, as well as a substantial reduction in the need for other medications (antihistamines, decongestants, and nasal steroids) used to treat perennial rhinitis symptoms.


The Journal of Allergy and Clinical Immunology | 2014

Efficacy of the oral chemoattractant receptor homologous molecule on TH2 cells antagonist BI 671800 in patients with seasonal allergic rhinitis

Norbert Krug; Abhya Gupta; Philipp Badorrek; Ruediger Koenen; Meike Mueller; Anna Pivovarova; James Hilbert; Kristiane Wetzel; Jens M. Hohlfeld; Chester C. Wood

BACKGROUND The inflammatory response in patients with seasonal allergic rhinitis (SAR) is partly mediated by the prostaglandin D2 receptor chemoattractant receptor homologous molecule on T(H)2 cells (CRTH2). OBJECTIVE We sought to investigate the efficacy and safety of the oral CRTH2 antagonist BI 671800 (50, 200, and 400 mg twice daily), fluticasone propionate nasal spray (200 μg once daily), or oral montelukast (10 mg once daily) administered for 2 weeks in patients with SAR. METHODS In this randomized, double-blind, placebo-controlled, partial-crossover study, participants aged 18 to 65 years with a positive skin prick test to Dactylis glomerata pollen were exposed to out-of-season allergen in the environmental challenge chamber for 6 hours. The primary efficacy variable was the total nasal symptom score assessed as the area under the curve (AUC)(0-6h). RESULTS In total, 146 patients (63.7% male; mean age, 36.1 years) were randomized. The adjusted mean total nasal symptom score AUC(0-6h) was significantly reduced versus placebo with 200 mg of BI 671800 (absolute difference, -0.85; percentage difference, -17%; P = .0026), montelukast (absolute difference, -0.74; percentage difference, -15%; P = .0115), and fluticasone propionate (absolute difference, -1.64; percentage difference, -33%; P < .0001). Compared with placebo, BI 671800 significantly reduced nasal eosinophil values (P < .05 for all doses), significantly inhibited nasal inflammatory cytokine levels (IL-4 and eotaxin, P < .05; 200 mg twice daily), and induced a dose-related reduction in ex vivo prostaglandin D2-mediated eosinophil shape change. CONCLUSION Two hundred milligrams of BI 671800 twice daily demonstrated efficacy in treating SAR symptoms induced by environmental challenge chamber allergen exposure and had a favorable safety profile.


Clinical & Experimental Allergy | 1994

Ipratropium bromide nasal spray in non-allergic rhinitis: efficacy, nasal cytological response and patient evaluation on quality of life

J. W. Georgitis; C. Banov; P. B. Boggs; R. Dockhorn; J. Grossman; D. Tinkelman; Paul Roszko; Chester C. Wood

Intranasal fluorocarbon anticholinergic agents have been used to treat the nasal hypersecretion of perennial non‐allergic rhinitis, but chronic use has been restricted either due to the potential for systemic anticholinergic adverse events or due to the irritating properties of the fluorocarbon metered dose formulations. This study evaluates a new aqueous nasal formulation of ipratropium bromide (Atrovent Nasal Spray 0.03%) in subjects with perennial non‐allergic rhinitis in a double‐blind, placebo‐controlled trial. Two hundred and twenty‐eight patients were randomized to receive two sprays per nostril of either ipratropium bromide (42μ/nostril) or placebo‐administered three times a day as an aqueous nasal spray over an 8‐week interval. Patients were evaluated bi‐weekly and maintained daily diaries for duration and severity of nasal symptoms. Ipratropium bromide reduced the mean severity and duration of rhinorrhoea within the first week and throughout the 8 weeks of active treatment compared with placebo (P < 0.05). Secondary endpoints of efficacy (patient and physician global assessments and a quality of life assessment) also supported the use of ipratropium bromide nasal spray for rhinitis symptom control. With the reduction in rhinorrhoea by the ipratropium bromide nasal spray, patients reported a marked improvement in daily moods vs placebo (P < 0.01). Both placebo and ipratropium bromide nasal spray induced a modest reduction of nasal congestion, sneezing and postnasal drip. This improvement in these other nasal symptoms was consistent with the known soothing effects of a nasal saline vehicle. There were no drug‐related serious or systemic anticholinergic adverse events. The medication was well tolerated with side‐effects limited to infrequent episodes of epistaxis and nasal dryness of mild intensity. Assessment for nasal rebound for 1 week after discontinuation of treatment showed no increase in nasal symptoms above the original baseline symptoms. These data indicate that ipratropium bromide administered as an 0.03% aqueous nasal spray, 42μg/nostril t.i.d., is a well tolerated and a highly effective medication for controlling the severity and duration of rhinorrhoea in perennial non‐allergic rhinitis. This new aqueous formulation should provide an additional therapeutic agent to utilize for the chronic treatment of non‐allergic rhinitis.


The Journal of Allergy and Clinical Immunology | 1995

Long-term treatment of perennial allergic rhinitis with ipratropium bromide nasal spray 0.06%

Harold B. Kaiser; Steven R. Findlay; John W. Georgitis; Jay Grossman; Paul H. Ratner; David G. Tinkelman; Paul Roszko; Elena C. Zegarelli; Chester C. Wood

The purpose of this study was to assess the safety and efficacy of ipratropium bromide nasal spray 0.06% (aqueous solution), 84 micrograms per nostril three times a day, in reducing nasal hypersecretion in the long-term treatment of patients with perennial allergic rhinitis (PAR). This was an open-label 1-year trial. In the first 6 months all patients were treated with two puffs ipratropium bromide nasal spray 0.06%, 84 micrograms per nostril three times per day, unless they were unable to tolerate the dose. In the last 6 months the dose could be reduced to the lowest amount required to control rhinorrhea. Ninety-six patients entered the trial, and 47 completed it. Sixty-three patients completed more than 6 months of treatment. Patient and physician global evaluation suggested that ipratropium bromide nasal spray 0.06% is effective in controlling rhinorrhea associated with PAR and can contribute to control of congestion, postnasal drip, and sneezing. There was also a trend toward reduction of mucosal edema and improvement in quality of life. The most common drug-related adverse events were nasal dryness, epistaxis/nose bleed, and increased rhinitis. Most adverse events were mild and resulted in drug discontinuation in less than 10% of patients. Ipratropium bromide nasal spray was well tolerated and not associated with serious drug-related adverse events or clinically significant anticholinergic side effects. Use of ipratropium bromide nasal spray alone or with other standard medications should be considered in treating patients with PAR.


Allergy and Asthma Proceedings | 1998

The Anticholinergic Agent, Ipratropium Bromide, is Useful in the Treatment of Rhinorrhea Associated with Perennial Allergic Rhinitis

Harold B. Kaiser; Findlay; Georgitis Jw; Grossman J; Paul H. Ratner; Tinkelman Dg; Chester C. Wood

The effects of the new ipratropium bromide nasal spray on rhinorrhea associated with perennial allergic rhinitis were studied in 219 patients over eight weeks in a multicenter, randomized, double-blind trial. The purpose of the study was to determine whether the new spray reduces nasal hypersecretion in allergic patients without causing excessive dryness or other potential cholinergic side effects. The investigators compared two doses of the spray (42 or 84 mcg/nostril t.i.d.) to placebo. Two hundred and nineteen patients were admitted to the study; 176 completed it. Study design included one week of screening to confirm a diagnosis of perennial allergic rhinitis with clinically significant rhinorrhea, one week of single-blind treatment with a placebo consisting of the saline vehicle of the spray, an eight-week double-blind treatment-comparison period, and one week of follow-up without treatment. Both doses of ipratropium bromide nasal spray significantly reduced the hypersecretion associated with PAR, compared with placebo. The two doses of active drug were equally effective. Treatment differences were noticeable during the first week and remained relatively stable during the eight-week treatment period. There was no evidence of nasal rebound after discontinuation of treatment. The incidence of side effects was comparable to placebo. The spray was well-tolerated, and was not associated with any significant adverse events.


Annals of Allergy Asthma & Immunology | 1997

Ipratropium Nasal Spray in Children with Perennial Rhinitis

Eli O. Meltzer; H.Alice Orgel; Robert Biondi; John W. Georgitis; Henry Milgrom; Zev Munk; Jay Van Bavel; Chester C. Wood; Kristin Drda

OBJECTIVE To compare the efficacy and safety of ipratropium nasal spray and placebo administered twice each day for 4 weeks in pediatric patients with perennial rhinitis who had rhinorrhea as a major complaint. METHODS This was a multicenter, double-blind, parallel group study. Patients aged 6 to 18 years with symptoms of perennial nonallergic (PNAR) or perennial allergic rhinitis (PAR) were randomized to receive ipratropium (42 micrograms per nostril) or placebo nasal spray, double-blind, twice each day for 4 weeks. Efficacy was evaluated by nasal symptoms, especially anterior rhinorrhea, and quality of life. Previous caregivers for rhinitis and medications used in the past were also evaluated. RESULTS A total of 202 patients were empanelled, 162 with PAR, 40 with PNAR; of these 151 with mild-severe rhinorrhea were evaluated for efficacy. Treatment with ipratropium reduced symptoms of rhinorrhea primarily in patients with PNAR. In patients with PAR this response was less pronounced, and was seen as a modest decrease in the severity of rhinorrhea noted in the first 2 weeks of treatment. Quality of life assessments confirmed that rhinorrhea was bothersome to these pediatric patients, and suggested that treatment with ipratropium nasal spray was associated with an improvement, especially in the patients with PNAR. There were few adverse events; these were similar in the two treatment groups. CONCLUSIONS Ipratropium nasal spray 0.03% administered at a dose of 42 micrograms/nostril bid is a safe and effective new therapy for control of anterior rhinorrhea in pediatric patients with PNAR. Twice daily administration is adequate for patients with PNAR, but patients with PAR might benefit from more frequent administration (e.g., tid).

Collaboration


Dive into the Chester C. Wood's collaboration.

Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Paul H. Ratner

Houston Methodist Hospital

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Jay Grossman

University of Rochester

View shared research outputs
Top Co-Authors

Avatar

Steven R. Findlay

University of Texas Medical Branch

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Eli O. Meltzer

University of California

View shared research outputs
Researchain Logo
Decentralizing Knowledge