VTETRAIN ABCNCT01864447
Exercise Training After an Acute Blood Clot
A study testing VTE REHABILITATION: High-Caloric Expenditure Exercise Training (HCE) and The Dietary Behavioral Weight Loss Intervention (BWL) in people with VTE, run by University of Vermont at 1 site in United States.
Trial summary
Patients after an acute blood clot in the veins are at risk for leg-related complications such as pain, swelling, and immobility. In addition, the occurrence of blood clots can have major implications for personal health including weight gain, blood clot recurrence and impairment in cardiovascular functioning. Read more about this study
- Who is it for?
- Ages 16 to 79 years
- Conditions the study is for
- VTE
- What is being tested?
- VTE REHABILITATION: High-Caloric Expenditure Exercise Training (HCE) and The Dietary Behavioral Weight Loss Intervention (BWL)
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 20 participants
- Where
- 1 siteUnited States
- Study dates
- May 2013to May 2014
- Phase
- Interventional
- 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 16 to 79 years
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Who may be able to join
- Diagnosis of acute unprovoked proximal or distal DVT >= 6 weeks
- On anticoagulation therapy
- Patient self-report of ability to walk 10 minutes without interruption or pain
- Age >=16 and <80
- Willingness to participate in exercise rehabilitation program at Tilley Drive South Burlington
Who cannot join
- Symptomatic PE, defined as 1) right heart strain as assessed by computed tomography or echocardiogram, 2) resting hypoxia - resting oxygen saturation <92%
- Provoked VTE: major surgery, trauma, or pregnancy
- Medical condition that alters ability to walk for exercise
Trial locations and contacts
1 site in 1 country.
About this study
Official title: An Exercise Training and Behavioral Weight Loss Program After an Acute Blood Clot: TRAIN ABC
Patients after an acute blood clot in the veins are at risk for leg-related complications such as pain, swelling, and immobility. In addition, the occurrence of blood clots can have major implications for personal health including weight gain, blood clot recurrence and impairment in cardiovascular functioning. The goal of this study is to determine whether aerobic exercise training is a therapeutic strategy to offset risk factors for recurrent blood clots or leg complications.
Read the detailed description
Cardiac rehabilitation (CR), a formalized exercise and behavioral modification program, is the cornerstone of secondary prevention for heart disease. Implementation of CR early after an acute myocardial infarction (MI) is associated with improved cardiac function and survival. As such, CR is now standard of care for a majority of hospital-based discharge programs following coronary events. In stark contrast, no similar program exists following an acute venous thromboembolism (VTE or blood clot), despite a high rate of limb and respiratory disability after VTE, shared risk factors with heart disease, and known beneficial impact of exercise training on VTE complications (e.g. post-thrombotic syndrome, PTS).
Body weight is a key modifiable risk factor driving risk of incident and recurrent VTE. Obese patients with prior VTE have a 2-fold higher risk of a second VTE compared to normal weight patients.(1) Importantly, VTE recurrence risk escalates if weight control is not established. Weight gain after acute DVT is common, with a mean 7% increase over 6 months.(2) To date, however, there is limited evidence regarding whether early initiation of exercise training following acute DVT is safe and feasible and mitigates weight gain associated with a VTE diagnosis. Previously, a significant decrease in body weight and fat mass loss was demonstrated utilizing high-caloric expenditure exercise in the CR setting.(3) Delineating the impact of high-caloric expenditure exercise to induce weight loss and reduce VTE complications and recurrence is a critical first step toward evaluating the role of early post-VTE rehabilitation in the clinical setting.
- Conditions
- VTE
- Being tested
- VTE REHABILITATION: High-Caloric Expenditure Exercise Training (HCE) and The Dietary Behavioral Weight Loss Intervention (BWL)
- Keywords
- VTE, Exercise, Diet, Weight loss, DVT, PE
- Medical subject headings
- Motor Activity, Weight Loss
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
VTE REHABILITATION: High-Caloric Expenditure Exercise Training (HCE) and The Dietary Behavioral Weight Loss Intervention (BWL)Behavioural
| Study group | Role | What they receive |
|---|---|---|
| VTE REHABILITATION | Experimental | The exercise prescription emphasizes gradual progression to longer duration (45-60 minutes per session), lower intensity (60-70% peak heart rate (PHR) exercise. Subjects have an exercise expenditure goal of >3000 kcal/wk, attained after 2 to 4 weeks of gradually lengthening exercise bouts. All exercise sessions will be performed onsite for the first two weeks, after which subjects will perform 2 additional sessions a week in the home environment. Exercise logs will be reviewed weekly.
The Dietary Behavioral Weight Loss Intervention(BWL) intervention consists primarily of 12 small group sessions led by a dietician emphasizing dietary records, itemization of food, and caloric content. Subjects will be given individualized daily caloric goals 500 kcal less than predicted maintenance calories based on their baseline body weight. Receives: Behavioral: VTE REHABILITATION: High-Caloric Expenditure Exercise Training (HCE) and The Dietary Behavioral Weight Loss Intervention (BWL) |
| CONTROL | No intervention | The 12-week program will consist of monthly phone contacts to check-in to capture physical activity done outside of the intervention setting. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Biomarkers of Obesity and VTE Recurrence
Blood work will be taken at baseline and 3 months. Measures will include adiponectin, leptin, resistin, visfatin, CRP, IL-6, PAI-1, endogenous thrombin potential, and D-dimer.Samples will be processed in the clinic with attention to issues related to coagulation activation, and plasma and serum will be stored at -80 degrees C in our laboratory.
Measured: 3 months
Secondary outcomes (1)
Maximal Exercise Capacity
Maximal exercise capacity will be assessed on the treadmill with measurement of peak oxygen uptake, duration of treadmill exercise and maximal exercise intensity in METS. A continuous modified-Balke protocol will be used, with exercise increasing gradually at 1 MET increments at 2 minute intervals.
Measured: 3 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted29 May 2013 (estimated)
- Study startMay 2013
- Primary completionMay 2014
- Study completionMay 2014
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (38)Papers the sponsor has linked to this study.
- Other trials for VTEStudies of the same condition, open and under way.
- 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 N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 20 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Vermont
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Susan Lakoski, University of Vermont
- Investigators
- Susan G Lakoski, MD, Principal investigator, University of Vermont
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01864447
- Sponsor's protocol ID
- CHRMS M13-219
- Acronym
- TRAIN ABC
- Status last verified
- Dec 2014
- First submitted
- 17 May 2013
- Last updated
- 4 Dec 2014
- Results posted
- No
- Data monitoring committee
- Yes
Publications
Eichinger S, Hron G, Bialonczyk C, Hirschl M, Minar E, Wagner O, Heinze G, Kyrle PA. Overweight, obesity, and the risk of recurrent venous thromboembolism. Arch Intern Med. 2008 Aug 11;168(15):1678-83. doi: 10.1001/archinte.168.15.1678.
PubMed 18695082Ageno W, Piantanida E, Dentali F, Mera V, Squizzato A, Marchesi C, Steidl L, Venco A. Weight gain after acute deep venous thrombosis: a prospective observational study. Thromb Res. 2003 Jan 1;109(1):31-5. doi: 10.1016/s0049-3848(03)00145-2.
PubMed 12679129Ades PA, Savage PD, Toth MJ, Harvey-Berino J, Schneider DJ, Bunn JY, Audelin MC, Ludlow M. High-calorie-expenditure exercise: a new approach to cardiac rehabilitation for overweight coronary patients. Circulation. 2009 May 26;119(20):2671-8. doi: 10.1161/CIRCULATIONAHA.108.834184. Epub 2009 May 11.
PubMed 19433757Hirsh J, Hoak J. Management of deep vein thrombosis and pulmonary embolism. A statement for healthcare professionals. Council on Thrombosis (in consultation with the Council on Cardiovascular Radiology), American Heart Association. Circulation. 1996 Jun 15;93(12):2212-45. doi: 10.1161/01.cir.93.12.2212. No abstract available.
PubMed 8925592Heit JA, Mohr DN, Silverstein MD, Petterson TM, O'Fallon WM, Melton LJ 3rd. Predictors of recurrence after deep vein thrombosis and pulmonary embolism: a population-based cohort study. Arch Intern Med. 2000 Mar 27;160(6):761-8. doi: 10.1001/archinte.160.6.761.
PubMed 10737275Prandoni P, Lensing AW, Cogo A, Cuppini S, Villalta S, Carta M, Cattelan AM, Polistena P, Bernardi E, Prins MH. The long-term clinical course of acute deep venous thrombosis. Ann Intern Med. 1996 Jul 1;125(1):1-7. doi: 10.7326/0003-4819-125-1-199607010-00001.
PubMed 8644983Carrier M, Le Gal G, Wells PS, Rodger MA. Systematic review: case-fatality rates of recurrent venous thromboembolism and major bleeding events among patients treated for venous thromboembolism. Ann Intern Med. 2010 May 4;152(9):578-89. doi: 10.7326/0003-4819-152-9-201005040-00008.
PubMed 20439576Douketis JD, Gu CS, Schulman S, Ghirarduzzi A, Pengo V, Prandoni P. The risk for fatal pulmonary embolism after discontinuing anticoagulant therapy for venous thromboembolism. Ann Intern Med. 2007 Dec 4;147(11):766-74. doi: 10.7326/0003-4819-147-11-200712040-00007.
PubMed 18056660Ageno W, Becattini C, Brighton T, Selby R, Kamphuisen PW. Cardiovascular risk factors and venous thromboembolism: a meta-analysis. Circulation. 2008 Jan 1;117(1):93-102. doi: 10.1161/CIRCULATIONAHA.107.709204. Epub 2007 Dec 17.
PubMed 18086925Kahn SR, Shrier I, Julian JA, Ducruet T, Arsenault L, Miron MJ, Roussin A, Desmarais S, Joyal F, Kassis J, Solymoss S, Desjardins L, Lamping DL, Johri M, Ginsberg JS. Determinants and time course of the postthrombotic syndrome after acute deep venous thrombosis. Ann Intern Med. 2008 Nov 18;149(10):698-707. doi: 10.7326/0003-4819-149-10-200811180-00004.
PubMed 19017588Barlow CE, Defina LF, Radford NB, Berry JD, Cooper KH, Haskell WL, Jones LW, Lakoski SG. Cardiorespiratory fitness and long-term survival in "low-risk" adults. J Am Heart Assoc. 2012 Aug;1(4):e001354. doi: 10.1161/JAHA.112.001354. Epub 2012 Aug 24.
PubMed 23130161Berry JD, Willis B, Gupta S, Barlow CE, Lakoski SG, Khera A, Rohatgi A, de Lemos JA, Haskell W, Lloyd-Jones DM. Lifetime risks for cardiovascular disease mortality by cardiorespiratory fitness levels measured at ages 45, 55, and 65 years in men. The Cooper Center Longitudinal Study. J Am Coll Cardiol. 2011 Apr 12;57(15):1604-10. doi: 10.1016/j.jacc.2010.10.056.
PubMed 21474041Gupta S, Rohatgi A, Ayers CR, Willis BL, Haskell WL, Khera A, Drazner MH, de Lemos JA, Berry JD. Cardiorespiratory fitness and classification of risk of cardiovascular disease mortality. Circulation. 2011 Apr 5;123(13):1377-83. doi: 10.1161/CIRCULATIONAHA.110.003236. Epub 2011 Mar 21.
PubMed 21422392Blair SN, Kohl HW 3rd, Paffenbarger RS Jr, Clark DG, Cooper KH, Gibbons LW. Physical fitness and all-cause mortality. A prospective study of healthy men and women. JAMA. 1989 Nov 3;262(17):2395-401. doi: 10.1001/jama.262.17.2395.
PubMed 2795824Belardinelli R, Georgiou D, Cianci G, Purcaro A. 10-year exercise training in chronic heart failure: a randomized controlled trial. J Am Coll Cardiol. 2012 Oct 16;60(16):1521-8. doi: 10.1016/j.jacc.2012.06.036. Epub 2012 Sep 19.
PubMed 22999730
Study at a glance
From the registry record, last updated by the sponsor on 4 Dec 2014. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- An Exercise Training and Behavioral Weight Loss Program After an Acute Blood Clot: TRAIN ABC
- ClinicalTrials.gov ID
- NCT01864447
- Acronym / sponsor ID
- TRAIN ABC / CHRMS M13-219
- Conditions
- VTE
- Keywords
- VTE, Exercise, Diet, Weight loss, DVT, PE
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 20 participants (actual)
- Lead sponsor
- University of VermontUniversity, hospital or other
- Study start
- May 2013
- Primary completion
- May 2014 (actual)
- Study completion
- May 2014 (actual)
- First posted
- 29 May 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.
Patients after an acute blood clot in the veins are at risk for leg-related complications such as pain, swelling, and immobility. In addition, the occurrence of blood clots can have major implications for personal health including weight gain, blood clot recurrence and impairment in cardiovascular functioning. The goal of this study is to determine whether aerobic exercise training is a therapeutic strategy to offset risk factors for recurrent blood clots or leg complications.
Detailed description
Cardiac rehabilitation (CR), a formalized exercise and behavioral modification program, is the cornerstone of secondary prevention for heart disease. Implementation of CR early after an acute myocardial infarction (MI) is associated with improved cardiac function and survival. As such, CR is now standard of care for a majority of hospital-based discharge programs following coronary events. In stark contrast, no similar program exists following an acute venous thromboembolism (VTE or blood clot), despite a high rate of limb and respiratory disability after VTE, shared risk factors with heart disease, and known beneficial impact of exercise training on VTE complications (e.g. post-thrombotic syndrome, PTS).
Body weight is a key modifiable risk factor driving risk of incident and recurrent VTE. Obese patients with prior VTE have a 2-fold higher risk of a second VTE compared to normal weight patients.(1) Importantly, VTE recurrence risk escalates if weight control is not established. Weight gain after acute DVT is common, with a mean 7% increase over 6 months.(2) To date, however, there is limited evidence regarding whether early initiation of exercise training following acute DVT is safe and feasible and mitigates weight gain associated with a VTE diagnosis. Previously, a significant decrease in body weight and fat mass loss was demonstrated utilizing high-caloric expenditure exercise in the CR setting.(3) Delineating the impact of high-caloric expenditure exercise to induce weight loss and reduce VTE complications and recurrence is a critical first step toward evaluating the role of early post-VTE rehabilitation in the clinical setting.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| VTE REHABILITATION | Experimental | Behavioral: VTE REHABILITATION: High-Caloric Expenditure Exercise Training (HCE) and The Dietary Behavioral Weight Loss Intervention (BWL)The exercise prescription emphasizes gradual progression to longer duration (45-60 minutes per session), lower intensity (60-70% peak heart rate (PHR) exercise. Subjects have an exercise expenditure goal of >3000 kcal/wk, attained after 2 to 4 weeks of gradually lengthening exercise bouts. All exercise sessions will be performed onsite for the first two weeks, after which subjects will perform 2 additional sessions a week in the home environment. Exercise logs will be reviewed weekly. The Dietary Behavioral Weight Loss Intervention(BWL) intervention consists primarily of 12 small group sessions led by a dietician emphasizing dietary records, itemization of food, and caloric content. Subjects will be given individualized daily caloric goals 500 kcal less than predicted maintenance calories based on their baseline body weight. |
| CONTROL | No intervention | –The 12-week program will consist of monthly phone contacts to check-in to capture physical activity done outside of the intervention setting. |
Who may qualify
- Ages
- 16 to 79 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
Key inclusion criteria (5 listed)
- Diagnosis of acute unprovoked proximal or distal DVT >= 6 weeks
- On anticoagulation therapy
- Patient self-report of ability to walk 10 minutes without interruption or pain
- Age >=16 and <80
- Willingness to participate in exercise rehabilitation program at Tilley Drive South Burlington
Key exclusion criteria (3 listed)
- Symptomatic PE, defined as 1) right heart strain as assessed by computed tomography or echocardiogram, 2) resting hypoxia - resting oxygen saturation <92%
- Provoked VTE: major surgery, trauma, or pregnancy
- Medical condition that alters ability to walk for exercise
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 |
|---|---|---|
| VTE REHABILITATION: High-Caloric Expenditure Exercise Training (HCE) and The Dietary Behavioral Weight Loss Intervention (BWL) | Behavioural | VTE REHABILITATION |
Primary outcome
Biomarkers of Obesity and VTE Recurrence
Time frame: 3 months
Blood work will be taken at baseline and 3 months. Measures will include adiponectin, leptin, resistin, visfatin, CRP, IL-6, PAI-1, endogenous thrombin potential, and D-dimer.Samples will be processed in the clinic with attention to issues related to coagulation activation, and plasma and serum will be stored at -80 degrees C in our laboratory.
1 secondary outcome
Maximal Exercise Capacity
Time frame: 3 months
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 4 Dec 2014.
- Background: PubMed 18695082Eichinger S, Hron G, Bialonczyk C, Hirschl M, Minar E, Wagner O, Heinze G, Kyrle PA. Overweight, obesity, and the risk of recurrent venous thromboembolism. Arch Intern Med. 2008 Aug 11;168(15):1678-83. doi: 10.1001/archinte.168.15.1678.
- Background: PubMed 12679129Ageno W, Piantanida E, Dentali F, Mera V, Squizzato A, Marchesi C, Steidl L, Venco A. Weight gain after acute deep venous thrombosis: a prospective observational study. Thromb Res. 2003 Jan 1;109(1):31-5. doi: 10.1016/s0049-3848(03)00145-2.
- Background: PubMed 19433757Ades PA, Savage PD, Toth MJ, Harvey-Berino J, Schneider DJ, Bunn JY, Audelin MC, Ludlow M. High-calorie-expenditure exercise: a new approach to cardiac rehabilitation for overweight coronary patients. Circulation. 2009 May 26;119(20):2671-8. doi: 10.1161/CIRCULATIONAHA.108.834184. Epub 2009 May 11.
- Background: PubMed 8925592Hirsh J, Hoak J. Management of deep vein thrombosis and pulmonary embolism. A statement for healthcare professionals. Council on Thrombosis (in consultation with the Council on Cardiovascular Radiology), American Heart Association. Circulation. 1996 Jun 15;93(12):2212-45. doi: 10.1161/01.cir.93.12.2212. No abstract available.
- Background: PubMed 10737275Heit JA, Mohr DN, Silverstein MD, Petterson TM, O'Fallon WM, Melton LJ 3rd. Predictors of recurrence after deep vein thrombosis and pulmonary embolism: a population-based cohort study. Arch Intern Med. 2000 Mar 27;160(6):761-8. doi: 10.1001/archinte.160.6.761.
- Background: PubMed 8644983Prandoni P, Lensing AW, Cogo A, Cuppini S, Villalta S, Carta M, Cattelan AM, Polistena P, Bernardi E, Prins MH. The long-term clinical course of acute deep venous thrombosis. Ann Intern Med. 1996 Jul 1;125(1):1-7. doi: 10.7326/0003-4819-125-1-199607010-00001.
- Background: PubMed 20439576Carrier M, Le Gal G, Wells PS, Rodger MA. Systematic review: case-fatality rates of recurrent venous thromboembolism and major bleeding events among patients treated for venous thromboembolism. Ann Intern Med. 2010 May 4;152(9):578-89. doi: 10.7326/0003-4819-152-9-201005040-00008.
- Background: PubMed 18056660Douketis JD, Gu CS, Schulman S, Ghirarduzzi A, Pengo V, Prandoni P. The risk for fatal pulmonary embolism after discontinuing anticoagulant therapy for venous thromboembolism. Ann Intern Med. 2007 Dec 4;147(11):766-74. doi: 10.7326/0003-4819-147-11-200712040-00007.
- Background: PubMed 18086925Ageno W, Becattini C, Brighton T, Selby R, Kamphuisen PW. Cardiovascular risk factors and venous thromboembolism: a meta-analysis. Circulation. 2008 Jan 1;117(1):93-102. doi: 10.1161/CIRCULATIONAHA.107.709204. Epub 2007 Dec 17.
- Background: PubMed 19017588Kahn SR, Shrier I, Julian JA, Ducruet T, Arsenault L, Miron MJ, Roussin A, Desmarais S, Joyal F, Kassis J, Solymoss S, Desjardins L, Lamping DL, Johri M, Ginsberg JS. Determinants and time course of the postthrombotic syndrome after acute deep venous thrombosis. Ann Intern Med. 2008 Nov 18;149(10):698-707. doi: 10.7326/0003-4819-149-10-200811180-00004.
- Background: PubMed 23130161Barlow CE, Defina LF, Radford NB, Berry JD, Cooper KH, Haskell WL, Jones LW, Lakoski SG. Cardiorespiratory fitness and long-term survival in "low-risk" adults. J Am Heart Assoc. 2012 Aug;1(4):e001354. doi: 10.1161/JAHA.112.001354. Epub 2012 Aug 24.
- Background: PubMed 21474041Berry JD, Willis B, Gupta S, Barlow CE, Lakoski SG, Khera A, Rohatgi A, de Lemos JA, Haskell W, Lloyd-Jones DM. Lifetime risks for cardiovascular disease mortality by cardiorespiratory fitness levels measured at ages 45, 55, and 65 years in men. The Cooper Center Longitudinal Study. J Am Coll Cardiol. 2011 Apr 12;57(15):1604-10. doi: 10.1016/j.jacc.2010.10.056.
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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.
Susan G Lakoski, MD principal investigator
University of Vermont
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing VTE REHABILITATION: High-Caloric Expenditure Exercise Training (HCE) and The Dietary Behavioral Weight Loss Intervention (BWL) in people with VTE, run by University of Vermont 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 5 inclusion and 3 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 4 Dec 2014. 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.
What does the primary outcome measure?
Biomarkers of Obesity and VTE Recurrence (time frame: 3 months). 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 NCT01864447, which also lists 38 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 4 Dec 2014.