LymphangioleiomyomasNCT00552955
Effect of Fasting on the Size of Abdominal Lymphatic Tumors in Women
An observational study of Lymphangioleiomyomas and Tuberous Sclerosis, run by National Heart, Lung, and Blood Institute (NHLBI) at 1 site in United States.
Trial summary
This study will examine the effect of fasting on lymphangioleiomyomas abdominal tumors formed from enlarged lymph nodes containing lymphatic fluid. Previous studies have determined that these tumors increase in size in the evening, but this result could stem from the fact that previous study participants were tested… Read more about this study
- Who is it for?
- Ages 18 to 80 years, women only
- Conditions the study is for
- Lymphangioleiomyomas, Tuberous Sclerosis, Lymphangioleiomyomatosis
- How many people
- 35 participants
- Where
- 1 siteUnited States
- Study dates
- 26 Oct 2007to 21 Mar 2016
- Phase
- Observational
- Are there results?
- None posted in the registry
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 80 years
- Women only
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Individuals who are 18 years of age or older with any of the following:
- Lymphangioleiomyomatosis
- Abdominal or pelvic lymphangioleiomyomas equal to or greater than one centimeter in diameter in the non-fasting state.
Who cannot join
- Individuals with any of the following:
- Lung transplantation
- Kidney transplantation
- Lymphangioleiomyomas smaller than one centimeter in diameter in the non-fasting state.
- Pregnancy or lactation.
- Type 1 diabetes.
- Inability to give informed consent.
- Currently taking rapamycin.
Trial locations and contacts
1 site in 1 country.
United States1 site
National Institutes of Health Clinical Center, 9000 Rockville Pike
Bethesda, Maryland, 20892
About this study
Official title: Effect of Fasting on the Size of Lymphangioleiomyomas in Patients With Lymphangioleiomyomatosis
This study will examine the effect of fasting on lymphangioleiomyomas abdominal tumors formed from enlarged lymph nodes containing lymphatic fluid. Previous studies have determined that these tumors increase in size in the evening, but this result could stem from the fact that previous study participants were tested after eating lunch. The purpose of the study is to help researchers understand the factors that produce changes in size of lymphangioleiomyomas, as well as to improve the ability of medical professionals to diagnose lymphangioleiomyomas and avoid confusing these tumors with other malignant tumors.
Volunteers must be women who are at least 18 years of age and who have been diagnosed with lymphangioleiomyomas in the abdominal or pelvic areas. Candidates who have had lung or kidney transplants or who have type 1 diabetes will be excluded. Candidates will be screened with a physical examination and medical history.
During the study, participants will be admitted to a National Institutes of Health clinical center for three days to undergo a number of tests. Tests will include routine blood and urine tests, and electrocardiogram, research blood testing, and abdominal and pelvic ultrasounds....
Read the detailed description
Lymphangioleiomyomatosis (LAM) is a rare disease of women that is characterized by a proliferation of abnormal smooth muscle-like cells (LAM cells) in the lungs, which leads to cystic destruction of the lung parenchyma, in the axial lymphatics, resulting in lymphangioleiomyomas, and in abdominal angiomyolipomas, primarily in the kidneys. Lymphangioleiomyomas may cause abdominal distension and compress abdominal organs, producing obstipation, bladder obstruction and neurological deficits. Leakage of chyle may be responsible for ascites and pleural effusions. The lymphangioleiomyomas may change in size during the day. This variation in tumor size may be due to increased chyle formation or alterations in lymphatic flow. These studies however, were not performed with research subjects who were fasting. Our hypothesis is that the ingestion of food increases chyle formation and lymphatic flow, which in turn increases the size of the lymphangioleiomyomas. The aim of this study is to test this hypothesis. We propose to conduct a study in 30 LAM patients who have lymphangioleiomyomas to determine whether the ingestion of food, by increasing chyle formation and lymphatic flow, increases the size of the lymphangioleiomyomas.
- Keywords
- Lymphangioleiomyomatosis, Abdominal Lymphangioleiomyomas, Chyle, Ascites, Tuberous Sclerosis Complex, LAM
- Medical subject headings
- Lymphangiomyoma, Tuberous Sclerosis, Lymphangioleiomyomatosis, Ascites
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted2 Nov 2007 (estimated)
- Study start26 Oct 2007
- Study completion21 Mar 2016
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 LymphangioleiomyomasStudies 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
- Observational
- Time perspective
- Other
- Enrolment
- 35 participants (actual)
Sponsor and investigators
- Sponsor type
- US National Institutes of Health
- Responsible party
- Sponsor
- Investigators
- Angelo M Taveira-DaSilva, M.D., Principal investigator, National Heart, Lung, and Blood Institute (NHLBI)
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00552955
- Sponsor's protocol ID
- 080016
- Other IDs
- 08-H-0016
- Status last verified
- 21 Mar 2016
- First submitted
- 1 Nov 2007
- Last updated
- 6 Mar 2019
- Results posted
- No
Publications
Kitaichi M, Nishimura K, Itoh H, Izumi T. Pulmonary lymphangioleiomyomatosis: a report of 46 patients including a clinicopathologic study of prognostic factors. Am J Respir Crit Care Med. 1995 Feb;151(2 Pt 1):527-33. doi: 10.1164/ajrccm.151.2.7842216.
PubMed 7842216Chu SC, Horiba K, Usuki J, Avila NA, Chen CC, Travis WD, Ferrans VJ, Moss J. Comprehensive evaluation of 35 patients with lymphangioleiomyomatosis. Chest. 1999 Apr;115(4):1041-52. doi: 10.1378/chest.115.4.1041.
PubMed 10208206Johnson SR, Tattersfield AE. Clinical experience of lymphangioleiomyomatosis in the UK. Thorax. 2000 Dec;55(12):1052-7. doi: 10.1136/thorax.55.12.1052.
PubMed 11083892
Study at a glance
From the registry record, last updated by the sponsor on 6 Mar 2019. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effect of Fasting on the Size of Lymphangioleiomyomas in Patients With Lymphangioleiomyomatosis
- ClinicalTrials.gov ID
- NCT00552955
- Acronym / sponsor ID
- 080016
- Keywords
- Lymphangioleiomyomatosis, Abdominal Lymphangioleiomyomas, Chyle, Ascites, Tuberous Sclerosis Complex, LAM
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 35 participants (actual)
- Lead sponsor
- National Heart, Lung, and Blood Institute (NHLBI)US National Institutes of Health
- Study start
- 26 Oct 2007
- Study completion
- 21 Mar 2016
- First posted
- 2 Nov 2007 (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.
This study will examine the effect of fasting on lymphangioleiomyomas abdominal tumors formed from enlarged lymph nodes containing lymphatic fluid. Previous studies have determined that these tumors increase in size in the evening, but this result could stem from the fact that previous study participants were tested after eating lunch. The purpose of the study is to help researchers understand the factors that produce changes in size of lymphangioleiomyomas, as well as to improve the ability of medical professionals to diagnose lymphangioleiomyomas and avoid confusing these tumors with other malignant tumors.
Volunteers must be women who are at least 18 years of age and who have been diagnosed with lymphangioleiomyomas in the abdominal or pelvic areas. Candidates who have had lung or kidney transplants or who have type 1 diabetes will be excluded. Candidates will be screened with a physical examination and medical history.
During the study, participants will be admitted to a National Institutes of Health clinical center for three days to undergo a number of tests. Tests will include routine blood and urine tests, and electrocardiogram, research blood testing, and abdominal and pelvic ultrasounds....
Detailed description
Lymphangioleiomyomatosis (LAM) is a rare disease of women that is characterized by a proliferation of abnormal smooth muscle-like cells (LAM cells) in the lungs, which leads to cystic destruction of the lung parenchyma, in the axial lymphatics, resulting in lymphangioleiomyomas, and in abdominal angiomyolipomas, primarily in the kidneys. Lymphangioleiomyomas may cause abdominal distension and compress abdominal organs, producing obstipation, bladder obstruction and neurological deficits. Leakage of chyle may be responsible for ascites and pleural effusions. The lymphangioleiomyomas may change in size during the day. This variation in tumor size may be due to increased chyle formation or alterations in lymphatic flow. These studies however, were not performed with research subjects who were fasting. Our hypothesis is that the ingestion of food increases chyle formation and lymphatic flow, which in turn increases the size of the lymphangioleiomyomas. The aim of this study is to test this hypothesis. We propose to conduct a study in 30 LAM patients who have lymphangioleiomyomas to determine whether the ingestion of food, by increasing chyle formation and lymphatic flow, increases the size of the lymphangioleiomyomas.
Study design
- Time perspective
- Other
Who may qualify
- Ages
- 18 to 80 years
- Sex
- Female only
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- Lymphangioleiomyomatosis
- Abdominal or pelvic lymphangioleiomyomas equal to or greater than one centimeter in diameter in the non-fasting state.
Key exclusion criteria (8 listed)
- Lung transplantation
- Kidney transplantation
- Lymphangioleiomyomas smaller than one centimeter in diameter in the non-fasting state.
- Pregnancy or lactation.
- Type 1 diabetes.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Not reported in the source record.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 6 Mar 2019.
- Background: PubMed 7842216Kitaichi M, Nishimura K, Itoh H, Izumi T. Pulmonary lymphangioleiomyomatosis: a report of 46 patients including a clinicopathologic study of prognostic factors. Am J Respir Crit Care Med. 1995 Feb;151(2 Pt 1):527-33. doi: 10.1164/ajrccm.151.2.7842216.
- Background: PubMed 10208206Chu SC, Horiba K, Usuki J, Avila NA, Chen CC, Travis WD, Ferrans VJ, Moss J. Comprehensive evaluation of 35 patients with lymphangioleiomyomatosis. Chest. 1999 Apr;115(4):1041-52. doi: 10.1378/chest.115.4.1041.
- Background: PubMed 11083892Johnson SR, Tattersfield AE. Clinical experience of lymphangioleiomyomatosis in the UK. Thorax. 2000 Dec;55(12):1052-7. doi: 10.1136/thorax.55.12.1052.
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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. This study is not recruiting at the moment.
Angelo M Taveira-DaSilva, 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?
An observational study of Lymphangioleiomyomas and Tuberous Sclerosis, 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 8 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: finished, as of the sponsor's last update on 6 Mar 2019. 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.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00552955, 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 6 Mar 2019.