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Influence of Weight Loss or Exercise on Cartilage in Obese Knee Osteoarthritis Patients (CAROT)
Influence of Weight Loss or Exercise on CARtilage in Obese Knee Osteoarthritis Patients: a Randomized Controlled Trial (CAROT).
Obesity and osteoarthritis (OA) co-exist in an increasing part of the population.
The two diseases intertwine in several ways. The evolution in the population shows a tendency towards deterioration of both by increasing general age and weight. The two diseases share pathogenetic features and the development of one disease increases the risk of the other and may be the onset of a vicious circle.
There is a link between treatments of these two diseases as well. There is now solid (gold) evidence that by treating effectively the obesity of patients with co-occurring OA, the functional status is dramatically ameliorated; the short-term results are equal to that of a joint replacement. The long-term efficacy of a weight loss remains to be shown. OA is definitely one of many diseases in which obesity must be taken seriously into account when planning a correct treatment of patients. This trial has two phases, the first (16 weeks) consisting of a dietary intervention with low-energy diet and the second (52 weeks) a randomized, three group (each n>50 patients) controlled study of maintenance of weight loss by either continuing dietary instruction, exercise, or a control group. The hypothesis is that maintenance of an initially induced weight loss is dependent on attention rather than any specific therapy.
Studie Overzicht
Toestand
Conditie
Interventie / Behandeling
Gedetailleerde beschrijving
Studietype
Inschrijving (Werkelijk)
Fase
- Niet toepasbaar
Contacten en locaties
Studie Locaties
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Frederiksberg, Denemarken, 2000
- The Parker Institute, Frederiksberg Hospital
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Beschrijving
Inclusion Criteria:
- BMI >=30
- Radiographical knee OA
- Age >=50
- Spoken Danish
- Motivated for weight loss
Exclusion Criteria:
- Bilateral Alloplasty of the knees
- Ongoing or planned surgery
- Ongoing or planned alternative weight loss programme
- Intellectual disability
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Behandeling
- Toewijzing: Gerandomiseerd
- Interventioneel model: Parallelle opdracht
- Masker: Enkel
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
|---|---|
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Geen tussenkomst: 3
Controle
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Actieve vergelijker: 2
Oefening
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Supervised exercise in groups
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Experimenteel: 1
Dietary instruction (low-energy diet.
This is given by instructions in groups of 8
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Weekly instruction by dieticians
Andere namen:
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Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Tijdsspanne |
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Pain
Tijdsspanne: 16 weeks, 68 weeks
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16 weeks, 68 weeks
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OMERACT-OARSI response criterion
Tijdsspanne: 16 weeks, 68 weeks
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16 weeks, 68 weeks
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Secundaire uitkomstmaten
Uitkomstmaat |
Tijdsspanne |
|---|---|
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Weight change
Tijdsspanne: 8 weeks, 16 weeks, 68 weeks
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8 weeks, 16 weeks, 68 weeks
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Gait analysis
Tijdsspanne: 16 weeks, 68 weeks
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16 weeks, 68 weeks
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MRI
Tijdsspanne: 16 weeks, 68 weeks
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16 weeks, 68 weeks
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Ultrasound
Tijdsspanne: 16 weeks, 68 weeks
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16 weeks, 68 weeks
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Collagen markers
Tijdsspanne: 16 weeks, 68 weeks
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16 weeks, 68 weeks
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Metabolic syndrome
Tijdsspanne: 8 weeks, 16 weeks, 68 weeks
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8 weeks, 16 weeks, 68 weeks
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KOOS
Tijdsspanne: 16 weeks, 68 weeks
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16 weeks, 68 weeks
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Medewerkers en onderzoekers
Sponsor
Medewerkers
Onderzoekers
- Studie directeur: Henning Bliddal, Professor,MD, The Parker Institute, Frederiksberg Hospital, Denmark
Publicaties en nuttige links
Algemene publicaties
- Christensen R, Bartels EM, Astrup A, Bliddal H. Effect of weight reduction in obese patients diagnosed with knee osteoarthritis: a systematic review and meta-analysis. Ann Rheum Dis. 2007 Apr;66(4):433-9. doi: 10.1136/ard.2006.065904. Epub 2007 Jan 4.
- Bliddal H, Christensen R. The management of osteoarthritis in the obese patient: practical considerations and guidelines for therapy. Obes Rev. 2006 Nov;7(4):323-31. doi: 10.1111/j.1467-789X.2006.00252.x.
- Christensen R, Astrup A, Bliddal H. Weight loss: the treatment of choice for knee osteoarthritis? A randomized trial. Osteoarthritis Cartilage. 2005 Jan;13(1):20-7. doi: 10.1016/j.joca.2004.10.008.
- Roddy E, Zhang W, Doherty M. Aerobic walking or strengthening exercise for osteoarthritis of the knee? A systematic review. Ann Rheum Dis. 2005 Apr;64(4):544-8. doi: 10.1136/ard.2004.028746.
- Bartels EM, Henrotin Y, Bliddal H, Centonze P, Henriksen M. Relationship between weight loss in obese knee osteoarthritis patients and serum biomarkers of cartilage breakdown: secondary analyses of a randomised trial. Osteoarthritis Cartilage. 2017 Oct;25(10):1641-1646. doi: 10.1016/j.joca.2017.06.009. Epub 2017 Jul 6.
- Christensen R, Henriksen M, Leeds AR, Gudbergsen H, Christensen P, Sorensen TJ, Bartels EM, Riecke BF, Aaboe J, Frederiksen R, Boesen M, Lohmander LS, Astrup A, Bliddal H. Effect of weight maintenance on symptoms of knee osteoarthritis in obese patients: a twelve-month randomized controlled trial. Arthritis Care Res (Hoboken). 2015 May;67(5):640-50. doi: 10.1002/acr.22504.
- Bartels EM, Christensen R, Christensen P, Henriksen M, Bennett A, Gudbergsen H, Boesen M, Bliddal H. Effect of a 16 weeks weight loss program on osteoarthritis biomarkers in obese patients with knee osteoarthritis: a prospective cohort study. Osteoarthritis Cartilage. 2014 Nov;22(11):1817-25. doi: 10.1016/j.joca.2014.07.027. Epub 2014 Aug 12.
- Henriksen M, Christensen R, Hunter DJ, Gudbergsen H, Boesen M, Lohmander LS, Bliddal H. Structural changes in the knee during weight loss maintenance after a significant weight loss in obese patients with osteoarthritis: a report of secondary outcome analyses from a randomized controlled trial. Osteoarthritis Cartilage. 2014 May;22(5):639-46. doi: 10.1016/j.joca.2014.03.003. Epub 2014 Mar 15.
- Henriksen M, Hunter DJ, Dam EB, Messier SP, Andriacchi TP, Lohmander LS, Aaboe J, Boesen M, Gudbergsen H, Bliddal H, Christensen R. Is increased joint loading detrimental to obese patients with knee osteoarthritis? A secondary data analysis from a randomized trial. Osteoarthritis Cartilage. 2013 Dec;21(12):1865-75. doi: 10.1016/j.joca.2013.10.003. Epub 2013 Oct 14.
- Gudbergsen H, Boesen M, Christensen R, Bartels EM, Henriksen M, Danneskiold-Samsoe B, Bliddal H. Changes in bone marrow lesions in response to weight-loss in obese knee osteoarthritis patients: a prospective cohort study. BMC Musculoskelet Disord. 2013 Mar 22;14:106. doi: 10.1186/1471-2474-14-106.
- Gudbergsen H. MRI in knee osteoarthritis. Application in diet intervention. Dan Med J. 2013 Mar;60(3):B4594.
- Gudbergsen H, Lohmander LS, Jones G, Christensen R, Bartels EM, Danneskiold-Samsoe B, Bliddal H, Boesen M. Correlations between radiographic assessments and MRI features of knee osteoarthritis--a cross-sectional study. Osteoarthritis Cartilage. 2013 Apr;21(4):535-43. doi: 10.1016/j.joca.2012.12.010. Epub 2012 Dec 26.
- Christensen P, Bartels EM, Riecke BF, Bliddal H, Leeds AR, Astrup A, Winther K, Christensen R. Improved nutritional status and bone health after diet-induced weight loss in sedentary osteoarthritis patients: a prospective cohort study. Eur J Clin Nutr. 2012 Apr;66(4):504-9. doi: 10.1038/ejcn.2011.201. Epub 2011 Dec 21.
- Henriksen M, Christensen R, Danneskiold-Samsoe B, Bliddal H. Changes in lower extremity muscle mass and muscle strength after weight loss in obese patients with knee osteoarthritis: a prospective cohort study. Arthritis Rheum. 2012 Feb;64(2):438-42. doi: 10.1002/art.33394.
- Gudbergsen H, Bartels EM, Krusager P, Waehrens EE, Christensen R, Danneskiold-Samsoe B, Bliddal H. Test-retest of computerized health status questionnaires frequently used in the monitoring of knee osteoarthritis: a randomized crossover trial. BMC Musculoskelet Disord. 2011 Aug 18;12:190. doi: 10.1186/1471-2474-12-190.
- Riecke BF, Christensen R, Christensen P, Leeds AR, Boesen M, Lohmander LS, Astrup A, Bliddal H. Comparing two low-energy diets for the treatment of knee osteoarthritis symptoms in obese patients: a pragmatic randomized clinical trial. Osteoarthritis Cartilage. 2010 Jun;18(6):746-54. doi: 10.1016/j.joca.2010.02.012. Epub 2010 Feb 17.
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Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
- H-B-2007-088
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