Clinical Trial of Low Dose Oral Interferon Alpha in Idiopathic Pulmonary Fibrosis
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|ClinicalTrials.gov Identifier: NCT01442779|
Recruitment Status : Completed
First Posted : September 29, 2011
Results First Posted : September 29, 2011
Last Update Posted : April 20, 2012
|Condition or disease||Intervention/treatment||Phase|
|Respiratory Tract Diseases Lung Diseases Lung Diseases, Interstitial Pulmonary Fibrosis||Drug: Interferon alpha oral lozenge||Phase 2|
This is a pilot study to determine if oral administration of low doses of Interferon alpha might be effective in treating Idiopathic Pulmonary Fibrosis (IPF). This is a disease that damages the lungs leading to marked decreases in the quality of life and death within 3-5 years after diagnosis. The cause is unknown. The standard treatment has for some time been steroids such as prednisone or prednisolone because of their anti-inflammatory actions, but there is little evidence that steroids either improve the condition, prevent further deterioration or improve life expectancy. Additionally, they have many side effects.
In this disease, normal cells are damaged for unknown reasons and replaced by a type of scar. This scar tissue prevents the easy movement of oxygen from the lungs into the blood, making it difficult for the patient to perform normal activities. With progression, which usually occurs rapidly, patients require supplemental oxygen to perform even simple tasks.
Interferons are chemicals normally produced in the body and the rate of their production has been shown to be reduced in the lungs of patients with IPF. They are involved in regulating the activity of the immune system which may play a role in initiating the damage to the lungs in IPF and they also can inhibit the activity of the cells that form the scar tissue. Our hypothesis is that treating patients with interferon might prevent damage to additional normal tissue and prevent the formation of additional scar tissue. This would prevent progression, improve the quality of life and extend the expected life span if successful. Another study has been ongoing in which IPF patients have been given injections of large doses of another type of interferon. This treatment regimen is expensive and side effects have been fairly frequent.
In contrast, we are treating IPF patients with low doses of interferon administered orally. The interferon is taken three times per day by letting a lozenge dissolve in the mouth. These low doses have been shown to produce effects in patients with other diseases and they produce very few side effects. If side effects occur, they usually are not severe and go away quickly. Those reported most commonly by other subjects have been headaches, nausea, rashes, respiratory infections, sore throat or diarrhea. No one has had to stop taking the medicine because of the side effects. The medicine is provided free of charge.
This study has been going on for about 5 years. The subjects are given the same tests that they receive as part of their standard of care. These include chest x-rays, High Resolution CT scans, pulmonary function tests and some blood tests. They are done before starting interferon alpha, and, depending on the test, are repeated at 3-, 6-, 9- or 12 month intervals. In addition subjects are asked to complete questionnaires on the quality of life, cough history and a dyspnea index at each visit.
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||18 participants|
|Intervention Model:||Single Group Assignment|
|Masking:||None (Open Label)|
|Official Title:||Clinical Trial of Low Dose Oral Interferon Alpha in Idiopathic Pulmonary Fibrosis|
|Study Start Date :||September 2000|
|Actual Primary Completion Date :||May 2007|
|Actual Study Completion Date :||May 2007|
- Drug: Interferon alpha oral lozenge
dose form - oral lozenge dose - 150 International Units (IU) frequency - 3 times a day duration - at least 1 year
- Minimal/no Progression (1 yr) by High Resolution Computed Tomography (HRCT) & Pulmonary Function [ Time Frame: 1 yr ]Disease progression was determined by comparing results of the High Resolution Computed Tomography(HRCT) and pulmonary function at one year to the baseline HRCT & pulmonary function. The same radiologist did the comparsion for all subjects.
- Minimal/no Change in Quality of Life [ Time Frame: 12 months ]
- Participants With Change in Cough [ Time Frame: 1 month ]changes in cough status after treatment for 1 month.
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01442779
|United States, Texas|
|Texas Tech University Health Sciences Center|
|Lubbock, Texas, United States, 79430|
|Principal Investigator:||Cynthia Jumper, MD||Texas Tech University Health Sciences Center|