LymphangioleiomyomatosisPhase 1/2NCT01799538
Nebulized or Inhaled Albuterol for Lymphangioleiomyomatosis
A Phase 1/2 study testing albuterol inhaler, albuterol nebulizer and PFT in people with Lymphangioleiomyomatosis, run by National Heart, Lung, and Blood Institute (NHLBI) at 1 site in United States.
Trial summary
Background: Lymphangioleiomyomatosis (LAM) is a rare type of lung disease that occurs almost exclusively in women. In LAM, muscle tissue grows in the lungs and starts to block the flow of air. It is a progressive disease, and in severe cases may require a lung transplant. Read more about this study
- Who is it for?
- Ages 18 to 100 years, women only
- Conditions the study is for
- Lymphangioleiomyomatosis
- What is being tested?
- albuterol inhaler, albuterol nebulizer and PFT
- Type of treatment
- Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 100 participants
- Where
- 1 siteUnited States
- Study dates
- 10 Jun 2013to 1 Nov 2027
- Phase
- Phase 1/2
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 100 years
- Women only
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Diagnosis of LAM either by tissue biopsy, evidence of lung and other organ involvement (renal angiomyolipomas, chylous effusions, lymphangioleiomyomas), high serum levels of vascular endothelial growth factor D (VGEF-D)(1) or a diagnosis of TSC associated with cystic lung lesions.
- Age 18 years or over
- Evidence of airflow obstruction: FEV1/VC ratio < fifth percentile of predicted normal and an FEV(1) <80% predicted of the normal values.
Who cannot join
- Subjects will be excluded from the study if they meet one or more of the following criteria:
- History of hypersensitivity to albuterol or any of its components.
- Moderate or large pleural effusions (chest x-ray and or CT scan procedure completed under Protocol 95-H-0186)
- History of seizures other than during infancy
- Inability to withhold bronchodilators for 24 hours
- Cognitive Impairment
Show all 12Show fewer
- Age less than 18 years
- Male sex
- Status-post lung or kidney transplantation
- Pregnant or breast feeding (women of childbearing potential will undergo a blood or urine pregnancy test under Protocol 95-H-0186).
- Treatment with monoaminoxidase inhibitors, tricyclic antidepressants or Beta-adrenergic receptor antagonists or long acting anticholinergic bronchodilators who are unable to be discontinued for at least seven days before enrollment.
- Patients with URI, uncontrolled hyperthyroidism or severe gastro-esophageal reflux. Major systemic diseases (i.e., malignancy; myocardial infarction or unstable angina; type 1 diabetes, severe hypertension; liver cirrhosis).
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
United States1 site, 1 recruiting
- Recruiting
National Institutes of Health Clinical Center
Bethesda, Maryland, 20892
About this study
Official title: Bronchodilator Effects of Nebulized Versus Inhaled Albuterol in Subjects With Lymphangioleiomyomatosis
Background:
- Lymphangioleiomyomatosis (LAM) is a rare type of lung disease that occurs almost exclusively in women. In LAM, muscle tissue grows in the lungs and starts to block the flow of air. It is a progressive disease, and in severe cases may require a lung transplant. One possible treatment to improve breathing in people with LAM is inhaled albuterol. Albuterol can be given in a metered dose inhaler (MDI) or with a nebulizer. Researchers want to compare these methods to see which method best improves lung function in women with LAM.
Read more
Objectives:
- To see whether a nebulizer or MDI can better improve lung function in women with LAM.
Eligibility:
- Women at least 18 years of age who have impaired lung function because of LAM.
Design:
- Participants will be screened with a physical exam and medical history. No lab tests will be needed for this study.
- Participants will have a 3-day overnight stay at the National Institutes of Health. Those who are using long-acting inhalers will have to stop taking these drugs 1 week before the study.
- Participants will receive either the nebulizer or two or four puffs of the inhaler. Four puffs of albuterol is a higher dose than is normally prescribed, and is being tested on this study.
- Participants will have each treatment around the same time of day on each of the 3 days. Before and after taking the albuterol, participants will have lung function tests.
Read the detailed description
We have reported that approximately one third of patients with lymphangioleiomyomatosis (LAM) who have airflow obstruction respond to bronchodilators such as albuterol, a Beta2-adenergic receptor agonist, with an increase in forced expiratory flow in one second (FEV1) of 12% and 200 ml above baseline values. Others however, have questioned these findings, reporting instead, a low rate of response of only six percent. Contrasting with our study, in this study albuterol was administered with a metered dose inhaler whereas in ours it was given by nebulizer. We propose to measure changes in lung function after administration of albuterol, respectively by metered inhaler and nebulizer, for 3 consecutive days in 100 LAM subjects. Our hypothesis is that albuterol administered by nebulization will produce a greater increase in FEV1 than two puffs of inhaled albuterol. If this hypothesis is confirmed, then we may recommend that patients with LAM and airflow obstruction use as a method of drug administration a nebulizer, rather than a metered dose inhaler.
- Conditions
- Lymphangioleiomyomatosis
- Being tested
- albuterol inhaler, albuterol nebulizer, PFT
- Keywords
- Albuterol, Bronchodilator, Nebulizer, Metered Dose Inhaler
- Medical subject headings
- Lymphangioleiomyomatosis
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
albuterol inhalerDrug
2 puffs of Metered Dose inhaler for Bronchodilation
albuterol nebulizerDrug
Albuterol administered by nebulization will produce a greater increase in FEV1
PFTProcedure or surgery
Breathing Test
| Study group | Role | What they receive |
|---|---|---|
| 1 | Experimental | Nebullizer Receives: Drug: albuterol nebulizer; Procedure: PFT |
| 2 | Active comparator | Inhaler Receives: Drug: albuterol inhaler; Procedure: PFT |
What is being measured
The primary outcome is the main question the study is designed to answer.
Greater improvement in lung function with nebulized albuterol.
Greater improvement in lung function with nebulized albuterol.
Measured: 3 days
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted26 Feb 2013 (estimated)
- Study start10 Jun 2013
- Primary completion1 Nov 2027 (estimated)
- Study completion1 Nov 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (3)Papers the sponsor has linked to this study.
- Other trials for LymphangioleiomyomatosisStudies of the same condition, open and under way.
- More trials run by National Heart, Lung, and Blood Institute (NHLBI)The sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 1/2
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 100 participants (estimated)
Sponsor and investigators
- Sponsor type
- US National Institutes of Health
- Responsible party
- Sponsor
- Investigators
- Joel Moss, M.D., Principal investigator, National Heart, Lung, and Blood Institute (NHLBI)
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01799538
- Sponsor's protocol ID
- 130051
- Other IDs
- 13-H-0051
- Status last verified
- 18 Mar 2026
- First submitted
- 23 Feb 2013
- Last updated
- 5 Nov 2026
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided
Publications
McCormack FX. Lymphangioleiomyomatosis: a clinical update. Chest. 2008 Feb;133(2):507-16. doi: 10.1378/chest.07-0898.
PubMed 18252917Ryu JH, Moss J, Beck GJ, Lee JC, Brown KK, Chapman JT, Finlay GA, Olson EJ, Ruoss SJ, Maurer JR, Raffin TA, Peavy HH, McCarthy K, Taveira-Dasilva A, McCormack FX, Avila NA, Decastro RM, Jacobs SS, Stylianou M, Fanburg BL; NHLBI LAM Registry Group. The NHLBI lymphangioleiomyomatosis registry: characteristics of 230 patients at enrollment. Am J Respir Crit Care Med. 2006 Jan 1;173(1):105-11. doi: 10.1164/rccm.200409-1298OC. Epub 2005 Oct 6.
PubMed 16210669Costello LC, Hartman TE, Ryu JH. High frequency of pulmonary lymphangioleiomyomatosis in women with tuberous sclerosis complex. Mayo Clin Proc. 2000 Jun;75(6):591-4. doi: 10.4065/75.6.591.
PubMed 10852420
Study at a glance
From the registry record, last updated by the sponsor on 5 Nov 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Bronchodilator Effects of Nebulized Versus Inhaled Albuterol in Subjects With Lymphangioleiomyomatosis
- ClinicalTrials.gov ID
- NCT01799538
- Acronym / sponsor ID
- 130051
- Conditions
- Lymphangioleiomyomatosis
- Keywords
- Albuterol, Bronchodilator, Nebulizer, Metered Dose Inhaler
- Phase
- Phase 1/2
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 100 participants (estimated)
- Lead sponsor
- National Heart, Lung, and Blood Institute (NHLBI)US National Institutes of Health
- Study start
- 10 Jun 2013 (actual)
- Primary completion
- 1 Nov 2027 (estimated)
- Study completion
- 1 Nov 2027 (estimated)
- First posted
- 26 Feb 2013 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Background:
- Lymphangioleiomyomatosis (LAM) is a rare type of lung disease that occurs almost exclusively in women. In LAM, muscle tissue grows in the lungs and starts to block the flow of air. It is a progressive disease, and in severe cases may require a lung transplant. One possible treatment to improve breathing in people with LAM is inhaled albuterol. Albuterol can be given in a metered dose inhaler (MDI) or with a nebulizer. Researchers want to compare these methods to see which method best improves lung function in women with LAM.
Objectives:
- To see whether a nebulizer or MDI can better improve lung function in women with LAM.
Eligibility:
- Women at least 18 years of age who have impaired lung function because of LAM.
Design:
- Participants will be screened with a physical exam and medical history. No lab tests will be needed for this study.
- Participants will have a 3-day overnight stay at the National Institutes of Health. Those who are using long-acting inhalers will have to stop taking these drugs 1 week before the study.
- Participants will receive either the nebulizer or two or four puffs of the inhaler. Four puffs of albuterol is a higher dose than is normally prescribed, and is being tested on this study.
- Participants will have each treatment around the same time of day on each of the 3 days. Before and after taking the albuterol, participants will have lung function tests.
Detailed description
We have reported that approximately one third of patients with lymphangioleiomyomatosis (LAM) who have airflow obstruction respond to bronchodilators such as albuterol, a Beta2-adenergic receptor agonist, with an increase in forced expiratory flow in one second (FEV1) of 12% and 200 ml above baseline values. Others however, have questioned these findings, reporting instead, a low rate of response of only six percent. Contrasting with our study, in this study albuterol was administered with a metered dose inhaler whereas in ours it was given by nebulizer. We propose to measure changes in lung function after administration of albuterol, respectively by metered inhaler and nebulizer, for 3 consecutive days in 100 LAM subjects. Our hypothesis is that albuterol administered by nebulization will produce a greater increase in FEV1 than two puffs of inhaled albuterol. If this hypothesis is confirmed, then we may recommend that patients with LAM and airflow obstruction use as a method of drug administration a nebulizer, rather than a metered dose inhaler.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| 1 | Experimental | Drug: albuterol nebulizer, Procedure: PFTNebullizer |
| 2 | Active comparator | Drug: albuterol inhaler, Procedure: PFTInhaler |
Who may qualify
- Ages
- 18 to 100 years
- Sex
- Female only
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- Diagnosis of LAM either by tissue biopsy, evidence of lung and other organ involvement (renal angiomyolipomas, chylous effusions, lymphangioleiomyomas), high serum levels of vascular endothelial growth factor D (VGEF-D)(1) or a diagnosis of TSC associated with cystic lung lesions.
- Age 18 years or over
- Evidence of airflow obstruction: FEV1/VC ratio < fifth percentile of predicted normal and an FEV(1) <80% predicted of the normal values.
Key exclusion criteria (12 listed)
- Subjects will be excluded from the study if they meet one or more of the following criteria:
- History of hypersensitivity to albuterol or any of its components.
- Moderate or large pleural effusions (chest x-ray and or CT scan procedure completed under Protocol 95-H-0186)
- History of seizures other than during infancy
- Inability to withhold bronchodilators for 24 hours
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| albuterol inhaler2 puffs of Metered Dose inhaler for Bronchodilation | Drug | 2 |
| albuterol nebulizerAlbuterol administered by nebulization will produce a greater increase in FEV1 | Drug | 1 |
| PFTBreathing Test | Procedure or surgery | 1, 2 |
Primary outcome
Greater improvement in lung function with nebulized albuterol.
Time frame: 3 days
Greater improvement in lung function with nebulized albuterol.
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 5 Nov 2026.
- Background: PubMed 18252917McCormack FX. Lymphangioleiomyomatosis: a clinical update. Chest. 2008 Feb;133(2):507-16. doi: 10.1378/chest.07-0898.
- Background: PubMed 16210669Ryu JH, Moss J, Beck GJ, Lee JC, Brown KK, Chapman JT, Finlay GA, Olson EJ, Ruoss SJ, Maurer JR, Raffin TA, Peavy HH, McCarthy K, Taveira-Dasilva A, McCormack FX, Avila NA, Decastro RM, Jacobs SS, Stylianou M, Fanburg BL; NHLBI LAM Registry Group. The NHLBI lymphangioleiomyomatosis registry: characteristics of 230 patients at enrollment. Am J Respir Crit Care Med. 2006 Jan 1;173(1):105-11. doi: 10.1164/rccm.200409-1298OC. Epub 2005 Oct 6.
- Background: PubMed 10852420Costello LC, Hartman TE, Ryu JH. High frequency of pulmonary lymphangioleiomyomatosis in women with tuberous sclerosis complex. Mayo Clin Proc. 2000 Jun;75(6):591-4. doi: 10.4065/75.6.591.
- NIH Clinical Center Detailed Web PageLink provided by the sponsor.
- Individual participant dataSharing planned: Undecided
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Joel Moss, M.D. principal investigator
National Heart, Lung, and Blood Institute (NHLBI)
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1/2 study testing albuterol inhaler, albuterol nebulizer and PFT in people with Lymphangioleiomyomatosis, run by National Heart, Lung, and Blood Institute (NHLBI) at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 12 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 5 Nov 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this combined phase mean?
Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Tatyana A Worthy, R.N. ((301) 827-1376, worthyt@mail.nih.gov), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Greater improvement in lung function with nebulized albuterol. (time frame: 3 days). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT01799538, which also lists 3 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Nov 2026.