Evaluating the Long-term Safety and Tolerability of Imatinib in Patients With Lymphangioleiomyomatosis (LAM) (LAMP-2)

January 19, 2026 updated by: Jeanine D'Armiento, Columbia University

A Phase 1, Randomized, Double-blinded, Placebo Controlled, Trial Evaluating the Long-term Safety and Tolerability of Imatinib for the Treatment of Lymphangioleiomyomatosis [LAMP-2 Trial]

Lymphangioleiomyomatosis (LAM) is a rare cystic lung disease that appears to behave like a slowly growing cancer. Since clinical progression is very slow, new blood tests have been used to speed the time required to find safe and effective medications. A large National Institute of Health study called MILES showed that sirolimus (also known as Rapamycin) improved lung function in individuals with LAM. Since most individuals with LAM and impaired lung function are now on sirolimus, future studies may prove more difficult. Laboratory studies suggested that Imatinib mesylate (imatinib), an FDA-approved drug for leukemia, initiates LAM cell death. A pilot trial with imatinib titled "Imatinib Mesylate for the treatment of Lymphangioleiomyomatosis" - (LAMP-1) was funded by the Department of Defense in 2016, and documented (1) the safety of use of tyrosine kinase inhibitors in patients with LAM; (2) the safety of concurrent use of tyrosine kinase and mTOR inhibitors; and, (3) short term variability in vascular endothelial growth factor D (VEGF-D) - a LAM biomarker, as a response to therapies. Due to the short-term LAMP-1 trial, LAMP-2 will be a longer-term 6-month clinical study evaluating the safety and tolerability of imatinib in patients with LAM. Patients that participate in the trial will come in for 5 office visits and check-up phone calls every 2 weeks over the course of 6 months.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Lymphangioleiomyomatosis (LAM) is a rare cystic lung disease that is due to a very slow growing cancer that proliferates via unopposed activity of the mTOR pathway. A large NIH study (MILES) found that sirolimus (Rapamycin) that inhibits the mTOR pathway improved lung function and quality of life compared to placebo in LAM. Sirolimus has been shown to cause growth suppression but not apoptosis of LAM cells in culture. Additionally, not all patients with LAM have a clinical effect with sirolimus. Recently, imatinib mesylate has been shown to induce LAM cell apoptosis, raising the possibility of more lasting therapy for LAM. Currently, most LAM patients are on sirolimus and attempts to find sirolimus naive patients have not been successful for other studies. LAM cells use the mesenchymal PDGF receptor pathway for proliferation, similar to certain leukemias and slow growing neoplasms. Laboratory studies suggested that Imatinib mesylate (imatinib), an FDA approved drug for leukemia, initiates LAM cell death. A pilot trial with imatinib (LAMP-1) was funded by the DOD in 2016, and documented (1) the safety of use of tyrosine kinase inhibitors in patients with LAM; (2) the safety of concurrent use of tyrosine kinase and mTOR inhibitors; and, (3) short term variability in VEGF-D as a response to therapies. Concurrent cell-based research studies during this time showed equally efficacious tumoricidal activity of nilotinib in vitro. Due to the short-term LAMP-1 trial, the investigators propose a longer-term clinical study evaluating the safety and tolerability of imatinib in patients with LAM.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
20

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • United States
    • New York
      • New York, New York, United States, 10032
        • Recruiting
        • Columbia University Irving Medical Center
        • Principal Investigator:
          • Jeanine D'Armiento, MD, PhD
        • Sub-Investigator:
          • Monica Goldklang, MD
        • Contact:
        • Contact:
    • South Carolina
      • Charleston, South Carolina, United States, 29425
        • Recruiting
        • Medical University of South Carolina
        • Principal Investigator:
          • Charlie Strange, MD
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Women 18 through 64 years of age (inclusive)

  • Pulmonary Function Test (PFT) with following criteria:

    1. DLCO >20% predicted and FVC <90% OR
    2. Post bronchodilator FEV1 between 30% and 90% predicted.
  • Confirmed or possible diagnosis of LAM
  • Willing to avoid grapefruit juice and St. John's wort while in the study
  • Able and willing to comply with the study procedures

Exclusion Criteria:

  • Women who have or will undergo a transplant
  • Women who will undergo surgery
  • Women who are currently pregnant or plan on a pregnancy
  • Women who are currently breast feeding or lactating
  • Dementia or other cognitive dysfunction that, in the opinion of the investigator, would prevent the participant from consenting to the study or completing study procedures

  • Currently taking any of the following medications:

    • Antifungal Medications: Ketoconazole; Itraconazole ; Voriconazole.
    • Antibiotics for bacterial infections: Clarithromycin.
    • Analgesics to treat headaches/migraines: Dihydroergotamine; Dihydroergotamine intranasal
    • Antiretroviral protease inhibitors used in human immunodeficiency virus (HIV) infections: Atazanavir ; Nelfinavir; Indinavir; Ritonavir; Saquinavir
    • Anti-epileptic or seizure medications: Carbamazepine, Fosphenytoin; Oxcarbamazepine; Phenobarbital ; Phenytoin; Primidone
    • Anti-depressant medications: Nefazodone; St. John's wort
    • Targeted cancer drugs: Regorafenib; Venetoclax ; Cobimetinib
    • Ivabradine (used to treat chronic heart failure); Telithromycin (used to treat community acquired pneumonia); Lomitapide (treatment of familial hypercholesterolemia); Lonafarnib (Hutchinson-Gilford progeria syndrome); conivaptan (treat low sodium levels); flibanserin (management of hypoactive sexual desire disorder (HSDD)); Naloxegol (opioid-induced constipation); Warfarin (prevent blood clots); Lurasidone (schizophrenia and bipolar depression); Eliglustat (treatment of Gaucher's disease).
  • Non English speaking, illiterate, or other vulnerable persons will not be included among study subjects.
  • Any condition that in the opinion of the investigator might adversely influence the study outcome.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Active Comparator: Imatinib Mesylate Group
This group will receive imatinib mesylate over the course of the trial.
Drug: Imatimib Mesylate
Participants will take Imatinib mesylate (imatinib), an FDA approved drug for leukemia, orally 400 mg (twice daily)
Other Names:
  • Gleevec®
  • imatinib
Placebo Comparator: Placebo Group
This group will receive placebo over the course of the trial.
Drug: Placebo
Placebo will be administered in the same dosage and manner as the study drug. The placebo looks like the study drug but contains no active ingredients.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Incidence of Adverse Events
Time Frame: 1 year
To observe and compare the occurrence of adverse events experienced by participants receiving imatinib mesylate compared to placebo throughout the duration of the study.
1 year

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Change in VEGF-D between study groups
Time Frame: Baseline, 6 months
To compare the change in the log-transformed level of VEGF-D from baseline to 6 months between imatinib mesylate and placebo groups.
Baseline, 6 months
Change in Forced Vital Capacity (FVC) between study groups
Time Frame: Baseline, 6 months
To compare the change in Forced Vital Capacity (FVC) from baseline to 6 months between imatinib mesylate and placebo groups.
Baseline, 6 months
Change in percent Forced Expiratory Volume in One Second (FEV1) between study groups
Time Frame: Baseline, 6 months
To compare the change in the percent predicted FEV1 (Forced expiratory volume in one second) using "GLI other" standards from baseline to 6 months between imatinib mesylate and placebo groups.
Baseline, 6 months
Change in St. George Respiratory Questionnaire (SGRQ) score between study groups
Time Frame: Baseline, 6 months
To compare the change in the total score of the St. George Respiratory Questionnaire (SGRQ) from baseline to 6 months between imatinib mesylate and placebo groups. Scores range from 0 to 100, with 0 representing no health impairment and 100 representing maximum health impairment.
Baseline, 6 months

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Change in High Mobility Group AT-Hook2 (HMGA2) between study groups
Time Frame: 1 year
To compare the change in expression of the neural crest biomarker HMGA2 (High Mobility Group AT-Hook2) between imatinib and placebo groups in the entire group, and in those not on sirolimus.
1 year
Change in percent Forced Expiratory Volume in One Second (FEV1)
Time Frame: 1 year
To compare the change in the percent predicted FEV1 between imatinib and placebo groups in those not on sirolimus.
1 year
Change in Modified Medical Research Council (mMRC) Dyspnea Score
Time Frame: 1 year
To compare the change in mMRC (Modified Medical Research Council) Dyspnea score between imatinib and placebo groups in the entire group and in those not on sirolimus. The mMRC scale is a self-rating tool to measure the degree of disability that breathlessness poses on day-to-day activities on a scale from 0 to 4. A higher score indicates a higher degree of disability due to breathlessness.
1 year
Change in 6 Minute Walk Test (6MWT)
Time Frame: 1 year
To compare the change in the 6MWT (6 Minute Walk Test) distance between imatinib and placebo groups in the entire group and in those not on sirolimus. The 6MWT measures how far a participant can walk in 6 minutes.
1 year
Change in EuroQol 5 Dimension (EQ5D)
Time Frame: 1 year
To compare the change in EQ5D scores between imatinib and placebo groups in the entire group and in those not on sirolimus. The EQ-5D (EuroQol 5 Dimension) is a questionnaire designed to measure a person's health-related quality of life by assessing their self-reported experiences across five key dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. The scoring is based on a scale of 0-100, 0 being the worst imaginable health state and 100 being the best imaginable health state.
1 year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Columbia University

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Medical University of South Carolina
United States Department of Defense

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Jeanine D'Armiento, MD, PhD, Columbia University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
October 20, 2025

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 1, 2026

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
March 1, 2027

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
March 15, 2025

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 15, 2025

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
March 21, 2025

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
January 21, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 19, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
January 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • AAAT1955

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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