Clinical trial NCT00994175: A Randomized, Placebo-Controlled, Double-Blind Pilot Study of Pioglitazone Hydrochloride in Severe, Refractory Asthma
Official title: A Randomized, Placebo-Controlled, Double-Blind Pilot Study of Pioglitazone Hydrochloride in Severe, Refractory Asthma
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE2
Conditions: Severe, Refractory Asthma
Airway Inflammation
Airflow Obstruction
Keywords: Pioglitazone
Severe, Refractory Asthma
Peroxisome Proliferator-Activated Receptor Gamma
Airflow Obstruction
Airway Inflammation
Asthma
Lead sponsor: National Institutes of Health Clinical Center (CC)
Sponsor class: NIH
First posted: 2009-10-14
Enrollment: 15
Sex: ALL
Minimum age (years): 18
Maximum age (years): 75
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: CROSSOVER
Primary purpose: TREATMENT

Brief summary: Background:

- Individuals who have severe asthma that is not easily controlled by current treatments are in need of new treatments to prevent potentially life-threatening asthma attacks. Experiments in mice have found that a medication called pioglitazone hydrochloride (Actos ), which is used to treat patients with diabetes, may be effective for treating severe asthma. Researchers are interested in determining whether Actos is effective in improving the quality of life in subjects with severe asthma who continue to have symptoms despite maximum standard medical therapy.

Objectives:

- To assess the effectiveness of pioglitazone hydrochloride as a treatment for patients with severe asthma that is not controlled by standard treatments.

Eligibility:

- Individuals between 18 and 75 years of age who have been diagnosed with and treated for severe asthma for at least 1 year.

Design:

* Potential participants will have a screening visit to determine eligibility for the study. The visit will involve breathing tests, chest x rays, heart and lung monitoring, and blood tests.
* Eligible participants will have a full medical history and will answer a series of questionnaires about their quality of life with asthma.
* Phase 1: Patients will record lung function and asthma symptoms morning and evening for 4 weeks. At the end of this period, patients will be evaluated with breathing, allergy, and blood tests, as well as questionnaires. Patients will also provide a sputum sample.
* Phase 2: Patients will receive regular doses of either pioglitazone hydrochloride or a placebo for 16 weeks. Patients will return to the National Institutes of Health every 4 weeks for tests.
* Phase 3: Wash-out period without study drugs for 4 weeks, similar to Phase 1.
* Phase 4: Patients will receive regular doses of either pioglitazone hydrochloride or a placebo for 16 weeks. Patients who received placebo will be given the study drug, and vice versa. Patients will return to the National Institutes of Health every 4 weeks for tests.
* Phase 5: Medications will be stopped, and patients will return to the National Institutes of Health 4 weeks later for final tests.

Detailed description: New therapies are needed for patients with asthma who are sub-optimally controlled by standard measures. Pioglitazone hydrochloride (Actos ) is a highly selective and potent agonist for the peroxisome proliferator-activated receptor-Gamma (PPAR Gamma). Studies in murine models of allergic asthma have shown that PPAR Gamma agonists down-regulate allergen-mediated airway inflammation and airway hyperresponsiveness. This protocol is a randomized, placebo-controlled, doubleblind, crossover (phase II) pilot study of the efficacy of pioglitazone for the treatment of patients with severe, refractory asthma. The primary end-point for this study will be quality of life as determined by the Asthma Quality of Life Questionnaire (AQLQ) score. Secondary end-points will include indices of airway inflammation, airflow obstruction, airway hyperreactivity, and asthma symptoms.

Eligibility criteria: * INCLUSION CRITERIA:
* Subjects will be between 18 and 75 years of age, male or female, with a diagnosis of severe, refractory asthma, as defined by the American Thoracic Society, for at least one year.
* Subjects must have a history of reversible airflow obstruction as defined by a positive methacholine bronchoprovocation challenge or a positive response to inhaled bronchodilators at some point in the course of their disease or a greater than 20% variability in the Forced Expiratory Volume in 1 second (FEV1) or the peak expiratory flow (PEF) documented during serial measurements of lung function over time.
* Left ventricular ejection fraction greater than or equal to 50% by echocardiogram
* For women of childbearing potential, negative pregnancy test prior to study and willingness to adhere to reliable birth control methods during the study.
* Subjects must have the ability to provide informed consent

EXCLUSION CRITERIA:

* A known history of hypersensitivity to pioglitazone.
* Asthma exacerbation requiring treatment with additional oral corticosteroids in the previous 6 weeks, or a life-threatening asthma attack requiring cardiopulmonary support in the previous 6 months.
* Cigarette smoking within the previous 12 months or a prior history of \> 20 cumulative pack-years.
* Investigational therapy for any indication within I month prior to the screening visit.
* History of lung disease other than asthma (ie., COPD, sarcoidosis).
* History of diabetes mellitus requiring treatment with any medication, insulin secreting tumor, or symptomatic hypoglycemia.
* HIV/AIDS
* History of congestive heart failure with current symptoms consistent with NYHA classification II, Ill or IV.
* Preexisting edema (2+ or greater).
* Hemoglobin \< 11 gm/dl for males and \< 10 gm/dl for females.
* Active liver disease or abnormal liver function tests \> 2 times upper limit of normal.
* History of bladder or colon cancer.
* History of other cancer not in remission.
* Active breast feeding.
* Use of the following medications, which can interact with pioglitazone:

  * Gemfibrizol (Lopid)
  * Atazanivir (Reyataz)
  * Ritonavir (Norvir)
  * Rifampin (Rifadpin)
  * Carbamzepine (Tegretol)
  * Phenobarbital (Luminal)
  * Phenytoin (Dilantin)
  * Rifapentine (Priftin)
  * Secobarbital (Seconal)
  * Amiodarone (Cordarone, Pacerone)
  * Palitaxel (Taxol)
  * Replaglinide (Prandine)
  * Ketoconazole (Nizoral)
  * Atorvastatin (Lipitor )
  * Fosphenytoin (Cerebyx)
  * Itraconazole (Sporanox)
  * Trimethoprim (in Bactrim)
  * Thioridazine
* Certain over-the-counter herbs and supplements. These will be reviewed by the investigators for possible interactions with the study medication A determination of whether the supplement is safe to use with pioglitazone will be made on a case-by-case basis.
* Any condition that, in the investigator s opinion, places the patient at undue risk for complications from pioglitazone therapy.

Primary outcomes:
measure: 16 Weeks - Juniper Asthma Quality of Life Questionnaire (AQLQ) Score
timeFrame: 16 weeks
measure: Baseline - Juniper Asthma Quality of Life Questionnaire (AQLQ) Score
timeFrame: Baseline
Secondary outcomes:
Other outcomes:
Locations:
city: Bethesda
country: United States
facility: National Institutes of Health Clinical Center, 9000 Rockville Pike
state: Maryland
city: Falls Church
country: United States
facility: INOVA Fairfax Hospital
state: Virginia
Study officials:
affiliation: National Heart, Lung, and Blood Institute (NHLBI)
name: Stewart J Levine, M.D.
role: PRINCIPAL_INVESTIGATOR
References:
citation: Rhen T, Cidlowski JA. Antiinflammatory action of glucocorticoids--new mechanisms for old drugs. N Engl J Med. 2005 Oct 20;353(16):1711-23. doi: 10.1056/NEJMra050541. No abstract available.
citation: Berry MA, Hargadon B, Shelley M, Parker D, Shaw DE, Green RH, Bradding P, Brightling CE, Wardlaw AJ, Pavord ID. Evidence of a role of tumor necrosis factor alpha in refractory asthma. N Engl J Med. 2006 Feb 16;354(7):697-708. doi: 10.1056/NEJMoa050580.
citation: Erin EM, Leaker BR, Nicholson GC, Tan AJ, Green LM, Neighbour H, Zacharasiewicz AS, Turner J, Barnathan ES, Kon OM, Barnes PJ, Hansel TT. The effects of a monoclonal antibody directed against tumor necrosis factor-alpha in asthma. Am J Respir Crit Care Med. 2006 Oct 1;174(7):753-62. doi: 10.1164/rccm.200601-072OC. Epub 2006 Jul 13.
citation: Kaler M, Barochia AV, Weir NA, Cuento RA, Stylianou M, Roth MJ, Filie AC, Vaughey EC, Nathan SD, Levine SJ. A randomized, placebo-controlled, double-blinded, crossover trial of pioglitazone for severe asthma. J Allergy Clin Immunol. 2017 Dec;140(6):1716-1718. doi: 10.1016/j.jaci.2017.05.033. Epub 2017 Jun 15.