Zafirlukast

Asthma, Chronic Urticaria

Treatment

2 FDA approvals

20 Active Studies for Zafirlukast

What is Zafirlukast

Zafirlukast

The Generic name of this drug

Treatment Summary

Zafirlukast is a medication used to treat asthma. It comes in the form of tablets and should be taken twice daily. Zafirlukast works by blocking the action of cysteinyl leukotrienes, which can cause airway constriction, mucus buildup and inflammation in the lungs. This drug is often used in combination with an inhaled steroid and/or a long-acting bronchodilator. Montelukast (Singulair) is another type of leukotriene receptor antagonist that must only be taken once a day.

Accolate

is the brand name

image of different drug pills on a surface

Zafirlukast Overview & Background

Brand Name

Generic Name

First FDA Approval

How many FDA approvals?

Accolate

Zafirlukast

1996

32

Approved as Treatment by the FDA

Zafirlukast, commonly known as Accolate, is approved by the FDA for 2 uses like Asthma and Asthma .

Asthma

Helps manage Asthma

Asthma

Helps manage Asthma

Effectiveness

How Zafirlukast Affects Patients

Zafirlukast is a drug used to prevent and treat asthma. It works by blocking the actions of leukotrienes, which are compounds that can cause airway constriction in people with asthma. This drug has been shown to inhibit the contractile activity of three different leukotrienes in laboratory animals and humans, as well as reduce the swelling and influx of eosinophils caused by leukotrienes in animal lungs.

How Zafirlukast works in the body

Zafirlukast blocks the body's response to two types of leukotriene, which are involved in the process of asthma. Leukotrienes increase airway swelling, muscle tightening, and inflammation, which all contribute to the symptoms of asthma. By blocking these leukotrienes, Zafirlukast helps reduce the severity of asthma symptoms.

When to interrupt dosage

The measure of Zafirlukast is determined by the diagnosed state. The amount of dosage fluctuates in accordance with the technique of delivery (e.g. Tablet, film coated or Tablet) featured in the table beneath.

Condition

Dosage

Administration

Asthma

, 10.0 mg, 20.0 mg

Tablet, film coated, Tablet, film coated - Oral, , Oral, Tablet, coated - Oral, Tablet, coated, Tablet - Oral, Tablet

Chronic Urticaria

, 10.0 mg, 20.0 mg

Tablet, film coated, Tablet, film coated - Oral, , Oral, Tablet, coated - Oral, Tablet, coated, Tablet - Oral, Tablet

Warnings

Zafirlukast Contraindications

Condition

Risk Level

Notes

Cirrhosis

Do Not Combine

Liver Disease

Do Not Combine

There are 20 known major drug interactions with Zafirlukast.

Common Zafirlukast Drug Interactions

Drug Name

Risk Level

Description

Abemaciclib

Major

The metabolism of Abemaciclib can be decreased when combined with Zafirlukast.

Acalabrutinib

Major

The metabolism of Acalabrutinib can be decreased when combined with Zafirlukast.

Albendazole

Major

The metabolism of Albendazole can be decreased when combined with Zafirlukast.

Alectinib

Major

The metabolism of Alectinib can be decreased when combined with Zafirlukast.

Amiodarone

Major

The metabolism of Amiodarone can be decreased when combined with Zafirlukast.

Zafirlukast Toxicity & Overdose Risk

Possible side effects of this drug include rash and stomach discomfort.

image of a doctor in a lab doing drug, clinical research

Zafirlukast Novel Uses: Which Conditions Have a Clinical Trial Featuring Zafirlukast?

160 active studies are assessing the potential of Zafirlukast to ameliorate Chronic Urticaria.

Condition

Clinical Trials

Trial Phases

Chronic Urticaria

0 Actively Recruiting

Asthma

97 Actively Recruiting

Phase 1, Phase 4, Not Applicable, Early Phase 1, Phase 2, Phase 3

Zafirlukast Reviews: What are patients saying about Zafirlukast?

5

Patient Review

4/3/2013

Zafirlukast for Chronic Obstructive Asthma

This drug is essential for my well-being. I have been taking it regularly for at least fifteen years, and if I forget to take it even for a day, I struggle to breathe.

5

Patient Review

3/7/2013

Zafirlukast for Asthma Prevention

I made the switch to this medication from Singulair, and I'm really happy that I did. Not only has it been effective, but it's also much cheaper.

5

Patient Review

5/31/2018

Zafirlukast for Asthma

Before I started this treatment, I was constantly wheezing and coughing. It didn't matter if I was sitting, standing, or lying down; I couldn't get a break. And forget about trying to sleep through the night! But since starting this medication, it's like those problems never existed.

5

Patient Review

7/21/2018

Zafirlukast for Asthma

Accolate has been much more effective for me than Singulair, especially in terms of my asthma and sinus polyps. I have AERD, so this is a big deal for me.

4.7

Patient Review

7/1/2013

Zafirlukast for Asthma

I completely agree that this treatment has been a miracle for me. I did have some short-term side effects, but they were nothing compared to how much it's helped me overall. I've been taking it since 2009 and it's allowed me to lead a normal life again. I hardly even notice my breathing now, so when there are problems I can identify them quickly and take care of them. Sleeping better at night has also helped reduce my fatigue during the day.

2.7

Patient Review

3/29/2018

Zafirlukast for Chronic Obstructive Asthma

One of the unfortunate side-effects I experienced was hair loss.

1

Patient Review

2/29/2012

Zafirlukast for Chronic Obstructive Asthma

Unfortunately, this medication caused my tongue to swell and I developed a rash. Since I have severe allergies, I can't take this medication anymore.

1

Patient Review

5/24/2012

Zafirlukast for Asthma

I started taking this medication and immediately began to experience moderate itching. I don't think I'll continue using it.
image of drug pills surrounding a glass of water symbolizing drug consumption

Patient Q&A Section about zafirlukast

These questions and answers are submitted by anonymous patients, and have not been verified by our internal team.

What are side effects of zafirlukast?

"One may experience nausea, diarrhea, or stomach pain as a result of taking ibuprofen. A headache may also develop. Some people may experience cold symptoms such as a stuffy nose, sneezing, or a sore throat."

Answered by AI

What is the drug zafirlukast used for?

"Zafirlukast prevents asthma attacks from occurring. It cannot be used to relieve an attack that has already started. If you have an asthma attack that has already started, you should use an inhaled medicine that works quickly for relief."

Answered by AI

Why was zafirlukast discontinued?

"Zafirlukast, a leukotriene receptor antagonist, is being discontinued for commercial reasons. The closest available alternative is montelukast. Clinicians should be aware of this product being discontinued."

Answered by AI

Clinical Trials for Zafirlukast

Image of University of California, Berkeley in Berkeley, United States.

Air Cleaners for Asthma and COPD

Any Age
All Sexes
Berkeley, CA

Fine particulate matter (PM2.5) is a type of air pollution made up of extremely tiny particles that can harm our health. Because PM2.5 particles are so small, they can travel deep into the lungs when inhaled. Exposure to PM2.5 can worsen asthma, cause breathing problems, increase the risk of heart attacks, and lead to early death, especially for people with existing heart or lung conditions. In California's Bayview Hunters Point (BVHP), a San Francisco community already facing high levels of air pollution and health impacts, sources of PM2.5 include industrial activity, commuter traffic, heavy-duty diesel trucks, freight trains, and port and maritime activities. The Reducing Exposure with Air Cleaners and Technology (REACT) Study is a partnership between University of California (UC) Berkeley, UC San Francisco, and Brightline Defense. The goal is to see if air cleaners (also called air purifiers) can help reduce indoor PM2.5 levels and improve respiratory health. For this study, the investigators will be recruiting 100 households in BVHP to participate. In each home, indoor PM2.5 levels and the health status of household members who are 13 years old or older and have asthma or chronic obstructive pulmonary disease (COPD) will be monitored. Each home will be part of the study for 90 to 120 days, depending on scheduling. Households must reside in BVHP for the duration of the study and not have used an air cleaner in their home within the last 6 months. On Day 1, each household will receive a PurpleAir indoor air quality monitor to measure PM2.5 levels in their home. * For the first 30 days, the investigators will measure the home's normal air quality (baseline). * After 30 days, each household will receive an air cleaner with information about how to best use it. * At that point, a PM2.5 indicator light will be turned on for half of the PurpleAir monitors. For the other half, indicator light will be kept turned off. This helps the investigators study whether seeing the air quality in real time changes how people use the air cleaner. * For the next 30 days, indoor PM2.5 levels will continue to be monitored. How often the air cleaner is used will also be tracked with smart plug data loggers. * After 60 days, more training and support will be offered to all participants and monitoring will continue over the final 30 days of the study.

Waitlist Available
Has No Placebo

University of California, Berkeley (+2 Sites)

Chelsea V Preble, PhD

Image of Allergy and Clinical Immunology Associates in Pittsburgh, United States.

Tilrekimig for Asthma

12 - 80
All Sexes
Pittsburgh, PA

The purpose of this clinical study is to learn about the safety and effects of the study medicine (called tilrekimig) for the potential treatment of severe asthma. Asthma is a condition that makes it challenging to breathe, which negatively impacts the quality of life of people who are affected. The study is seeking participants who: * Have a history of severe asthma for at least 12 months * Have had at least 2 asthma attacks (also known as exacerbations) within the last 12 months All participants will be given shots of study medicine or a placebo at the study clinic. Tilrekimig or the placebo will be given about every 4 weeks during the study. The study will compare the experiences of people receiving tilrekimig to those people who receive the placebo. This will help determine if tilrekimig is safe and effective.

Phase 3
Recruiting

Allergy and Clinical Immunology Associates (+10 Sites)

Pfizer CT.gov Call Center

Pfizer

Image of Ontario Tech University in Oshawa, Canada.

Temperature & Humidity Exposure for Asthma

11 - 18
All Sexes
Oshawa, Canada

The goal of this clinical study is to learn how different temperature and humidity conditions affect breathing, lung function, exercise capacity, symptoms, and other physical responses in children and youth aged 11 to 18 years with asthma, compared with age- and sex-matched children and youth without asthma. The main questions it aims to answer are: * How do different temperature and humidity conditions affect lung function, breathing symptoms, exercise capacity, and physiological responses in children and youth with asthma? * Do children and youth with asthma respond differently to these environmental conditions than children and youth without asthma? * Do sex and gender influence these responses? Researchers will compare children and youth with asthma to age- and sex-matched children and youth without asthma to see if temperature and humidity exposures have different effects on breathing, exercise performance, symptoms, and physiological responses. Participants will: * Attend two study visits in a climate-controlled chamber. * Be exposed to hot, cold, and varying humidity conditions for short periods of time. * Complete breathing tests and exercise testing before, during, and after each exposure. * Have symptoms, physical activity, and physiological responses monitored throughout the study.

Waitlist Available
Has No Placebo

Ontario Tech University

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Image of Children's Hospital Los Angeles in Los Angeles, United States.

Wearable Stethoscope for Childhood Asthma

4 - 17
All Sexes
Los Angeles, CA

The goal of this clinical trial is to evaluate a prototype wearable stethoscope designed to record lung sounds and assess asthma control in children and adolescents with asthma aged 4 to 17 years who are able to perform spirometry. The study aims to determine whether the prototype wearable stethoscope can accurately detect clinically meaningful changes in lung sounds associated with asthma control and response to bronchodilator treatment. The main questions it aims to answer are: * Does the prototype wearable stethoscope demonstrate agreement with recordings obtained from commercially available Thinklabs One Digital Stethoscopes in identifying normal and abnormal lung sounds? * Are lung sounds detected by the prototype wearable stethoscope associated with asthma symptom control as measured by the Childhood Asthma Control Test (cACT) or Asthma Control Test (ACT) Researchers will compare recordings obtained from the prototype wearable stethoscope with recordings obtained from FDA-cleared Thinklabs One Digital Stethoscopes to evaluate the prototype device's ability to detect abnormal lung sounds and changes in lung sounds following bronchodilator treatment.

Waitlist Available
Has No Placebo

Children's Hospital Los Angeles

Roberta Kato, MD

Image of SMS Clinical Research LLC in Garland, United States.

Tilrekimig for Severe Asthma

12 - 80
All Sexes
Garland, TX

The purpose of this clinical study is to learn about the safety and effects of the study medicine (called tilrekimig) for the potential treatment of severe asthma. Asthma is a condition that makes it challenging to breathe, which negatively impacts the quality of life of people who are affected. The study is seeking participants who: * Have a history of severe asthma for at least 12 months * Have had at least 2 asthma attacks (also known as exacerbations) within the last 12 months All participants will be given shots of study medicine or a placebo at the study clinic. The study will compare the experiences of people receiving tilrekimig to those people who receive the placebo. This will help determine if tilrekimig is safe and effective.

Phase 3
Recruiting

SMS Clinical Research LLC (+12 Sites)

Pfizer CT.gov Call Center

Pfizer

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Image of University of Wisconsin in Madison, United States.

Mouthwash for Asthma

18+
All Sexes
Madison, WI

This study aims to determine whether an extra virgin olive oil-based water (EVOOW) mixture removes more fluticasone propionate (FP) from the mouth than water alone. More effective removal of residual FP deposits may help reduce the risk of complications associated with inhaled corticosteroid use, including obstructive sleep apnea (OSA), oral candidiasis (thrush), and speech and swallowing dysfunction. Participants will attend two separate testing visits, during which they will rinse and gargle with either EVOOW or water, after receiving 1 puff if fluticasone propionate. The visits will be scheduled 7-10 days apart. Total participation will last up to 3 weeks.

Phase 4
Waitlist Available

University of Wisconsin

Mihaela Teodorescu, MD, MS

Image of Pfizer Clinical Research Unit - New Haven in New Haven, United States.

PF-08103402 for Asthma

18 - 65
All Sexes
New Haven, CT

The purpose of this study is to learn about the safety of a new study medicine called PF-08103402 in healthy adults (do not have disease) and or in adults with mild-to-moderate asthma. This is the first time the study medicine is being given to people. For Parts A, B, C, D and F, the study is seeking participants who: * Are healthy (do not have disease) males or females who can no longer have children, * Are 18 to 65 years old, * Have a body mass index (BMI) of 16 to 32 kilograms per meter squared and a body weight of more than 50 kilograms (110 pounds). Body mass index is a way to measure body fat by using a person's height and weight For Part A (optional group or cohort 3: Japanese participants only): * A body weight of more than 45 kilograms (100 pounds). * Have 4 biological Japanese grandparents who were born in Japan. For Part E only: * Adults with a documented history of asthma (confirmed by a doctor) for at least 12 months before entering the study. * Have a body mass index (BMI) of 16 to 35 kilograms per meter squared and a total body weight of more than 50 kilograms (110 pounds). The study has six parts: Part A, Part B, Part C, Part D, Part E and Part F. The study medicine will be taken as a suspension or tablet by mouth 1 time a day (except in Parts B and E where it will be taken 1 time a day for 14 days) at the study clinic. The study will help understand: * how the body processes the study medicine in healthy participants (Parts A and B), * how much of the study medicine gets into the bloodstream and if food affects the amount of study medicine in the blood in healthy participants (Part C), * how the study medicine is broken down and leaves the body in healthy participants (Optional Part D), * how the study medicine is processed in adults with mild-to-moderate asthma (Optional Part E), * if taking the study medicine together with another medicine affects how each medicine is processed by the body in healthy participants (Optional Part F). Participants will take part in the study for about 10 weeks (Parts A and F), 12 weeks (Part B), 9 weeks (Parts C and D), and 16 weeks (Part E). During this time, they will have 2 study visits at the study clinic and up to 28 overnight stays (Part A), 18 overnight stays (Parts B and E), 10 overnight stays (Part C), 11 overnight stays (Part D), and 16 overnight stays (Part F). The study team will also call participants 1 time over the phone at the end of the study to assess how they are doing. Study measurements will be taken by body examination, monitoring side effects, blood and urine tests, heart tests (ECG), vital signs (blood pressure, pulse and respiratory rate), questionnaires (Parts C and E), stool samples (Part D only), and breathing tests (Part E only).

Phase 1
Recruiting

Pfizer Clinical Research Unit - New Haven

Pfizer CT.gov Call Center

Pfizer

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