Lymphangioleiomyomatosis | Safety of Simvastatin in LAM and TSC

Lymphangioleiomyomatosis research study

What is the primary objective of this study?

The purpose of this research study is to see if simvastatin can be taken safely in patients with either LAM or TSC, who are already being treated with everolimus or sirolimus. This is the first step in looking at simvastatin as a drug that may help patients, by impacting the growth and survival of cells that make up the lung lesions that cause problems in LAM and TSC patients. The study also seeks to learn more about how simvastatin works, when given to patients being treated with everolimus or sirolimus, and to evaluate the safety and any potential benefit to patients taking this 2-drug combination. The primary objective of this study is to determine the safety of simvastatin in the treatment of LAM-S or LAM-TS in patients on a stable (for at least 3 months) dose of sirolimus or everolimus. Secondary objectives include: - To assess the effect of simvastatin on forced expiratory volume in 1 second (FEV1). - To assess the effect of simvastatin on forced vital capacity (FVC). - To assess the effect of simvastatin on diffusing lung capacity (DLCO). - To assess the effect of simvastatin on vascular endothelial growth factor -D (VEGF-D) serum levels. - To assess the effect of simvastatin with questionnaire- based assessments of dyspnea, fatigue, and quality of life (QOL). - Assess signs of clinical benefit.

Who is eligible to participate?

Inclusion Criteria: - Female, age 18 and older with clinically definitive diagnosis (biopsy proven or compatible chest CT/MRI scan) of sporadic LAM (LAM-S) or LAM associated with TS (LAM-TS). - Treated with a stable (at least 3 months) dose of sirolimus or everolimus - Negative pregnancy test (women of child bearing potential) at screening. - Women of childbearing potential must be using barrier, medically acceptable contraceptive precautions. - Signed and dated informed consent. Exclusion Criteria: - Age < 18 years - Known allergy to simvastatin or currently taking simvastatin, or therapy with a medication in the same class as simvastatin within the past 30 days. - Allergy to sirolimus or everolimus. - Current use of other than sirolimus or everolimus investigational drug for TSC or LAM within the past 30 days. - Use of estrogen containing medications, including birth control pills, within the 30 days prior to enrollment. - Treatment with drugs having known metabolic interactions with statin drugs (e.g. cytochrome P450 3A4 metabolism), including ketoconazole, itraconazole, fluconazole, erythromycin, clarithromycin, azithromycin, niacin (nicotinic acid), digoxin, warfarin, sildenafil or use of strong CYP3A4 inhibitors including gemfibrozil, cyclosporine, danazol, verapamil, diltiazem, and dronedarone. amiodarone, amlodipine, and ranolazine. - Participation in another clinical study(ies) of an investigational treatment or drug within 30 days prior to the screening visit. - Amiodarone; within the past 30 days. - Significant dysfunction of liver (ALT > 2 times upper limit of normal-ULN), kidney (serum creatinine > 1.5 times ULN), or blood (leucopenia (ANC<2000), anemia, Hgb < 11 gm/dl). - History of inflammatory muscle disease or myopathy. - Bleeding diathesis or anticoagulant therapy. - Uncontrolled hyperlipidemia or diabetes. - Pregnant, breast feeding, or plan to become pregnant within the next 6 months - Inadequate contraception (must agree to barrier method) - History of organ transplant. - Active on transplant list. - Severe or uncontrolled medical conditions which would cause an unacceptable safety risk or compromise compliance with the protocol. - Unstable seizures (recent changes in pattern or anti-epileptics). - Mental illness or cognitive deficit precluding informed consent.. - Inability to attend scheduled clinic visits or comply with study procedures.

Which medical condition, disease, disorder, syndrome, illness, or injury is researched?


Tuberous Sclerosis Complex

Study Interventions

Interventions can include giving participants drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available or noninvasive approaches such as surveys, education, and interviews.

Drug:SimvastatinEligible patients will be assigned to receive 20 mg of simvastatin once daily for a period of two months. If tolerated, the dosage of simvastatin will be advanced to 40 mg once daily in months 3 and 4.

Study Arms

Research studies and clinical trials typically have two or more research arms. An arm is a group of people who receive the same treatment in the study.

single simvastatin treatment armSimvastatin 20 mg oral daily for 2 months; if tolerated, followed by simvastatin 40 mg oral daily for 2 months

Study Status

Active, not recruiting

Start Date: March 2014

Completed Date: December 2019

Phase: Phase 1/Phase 2

Type: Interventional


Primary Outcome: Safety of simvastatin in the treatment of LAM-S and LAM-TS patients on a stable (for at least 3 months) dose of sirolimus or everolimus.

Secondary Outcome: FEV1, FVC, DLCO, VEGF-D, and QOL; signs of clinical benefit.

Study sponsors, principal investigator, and references

Principal Investigator: Vera P Krymskaya, PhD, MBA

Lead Sponsor: University of Pennsylvania

Collaborator: The LAM Foundation

More information:

Krymskaya VP. Treatment option(s) for pulmonary lymphangioleiomyomatosis: progress and current challenges. Am J Respir Cell Mol Biol. 2012 May;46(5):563-5. doi: 10.1165/rcmb.2011-0381ED.

Goncharova EA, Goncharov DA, Li H, Pimtong W, Lu S, Khavin I, Krymskaya VP. mTORC2 is required for proliferation and survival of TSC2-null cells. Mol Cell Biol. 2011 Jun;31(12):2484-98. doi: 10.1128/MCB.01061-10. Epub 2011 Apr 11.

Discuss Simvastatin