

Bruyere O, et al. Glucosamine sulfate reduces osteoarthritis progression in postmenopausal women with knee osteoarthritis: evidence from two 3-year studies. Menopause 2004;11(2):138-143.
Christgau S, et al. Osteoarthritic patients with high cartilage turnover show increased responsiveness to the cartilage protecting effects of glucosamine sulphate. Clin Exp Rheumatol 2004;22(1):36-42.
Cibere J, et al. Randomized, double-blind, placebo-controlled glucosamine discontinuation trial in knee osteoarthritis. Arthritis Rheum 2004;51(5):738-745.
Clegg DO, Reda DJ, et al. Glucosamine, chondroitin sulfate, and the two in combination for painful knee osteoarthritis. N Engl J Med 2006;354:795-808.
Crolle G, et al. Glucosamine sulphate for the management of arthrosis: a controlled clinical investigation. Curr Med Res Opin 1980;7(2):104-109.
D'Ambrosio E, et al. Glucosamine sulphate: a controlled clinical investigation in arthrosis. Pharmatherapeutica 1981;2(8):504-508.
Drovanti A, et al. Therapeutic activity of oral glucosamine sulfate in osteoarthrosis: a placebo-controlled double-blind investigation. Clin Ther 1980;3(4):260-272.
Giordano N, et al. Efficacy and safety of glucosamine sulfate in the treatment of gonarthritis. Clin Therapeutics 1996;147:99-115.
Herrero-Beaumont G, Ivorra JA, et al. Glucosamine sulfate in the treatment of knee osteoarthritis symptoms: a randomized, double-blind, placebo-controlled study using acetaminophen as a side comparator. Arthritis Rheum 2007;56:555-567.
Lopes Vas A. Double-blind clinical evaluation of the relative efficacy of ibuprofen and glucosamine sulphate in the management of osteoarthrosis of the knee in out-patients. Curr Med Res Opin 1982;8(3):145-9.
Muller-Fassbender H, et al. Glucosamine sulfate compared to ibuprofen in osteoarthritis of the knee. Osteoarthritis Cartilage 1994;2(1):61-69.
Mund-Hoym WD. Conservative treatment of vertebral osteoarthritis with glucosamine sulfate. Therapiewoche 1980;30:5922-28.
Noack W, et al. Glucosamine sulfate in osteoarthritis of the knee. Osteoarthritis Cartilage 1994;2(1):51-59.
Pavelka K, et al. Glucosamine sulfate use and delay of progression of knee osteoarthritis: a 3-year, randomized, placebo-controlled, double-blind study. Arch Intern Med 2002;162(18):2113-23.
Pujalte JM, et al. Double-blind clinical evaluation of oral glucosamine sulphate in the basic treatment of osteoarthrosis. Curr Med Res Opin 1980;7(2):110-114.
Qui GX, et al. Efficacy and safety of glucosamine sulfate versus ibuprofen in patients with knee osteoarthritis. Arzneimittelforschung 1998;48(5):469-474.
Reginster JY, et al. Long-term effects of glucosamine sulphate on osteoarthritis progression: a randomised, placebo-controlled clinical trial. Lancet 2001;357(9252):251-256.
Reichelt A, et al. Efficacy and safety of intramuscular glucosamine sulfate in osteoarthritis of the knee. A randomised, placebo-controlled, double-blind study. Arzneimittelforschung 1994;44(1):75-80.
Rovati LC. The clinical profile of glucosamine sulfate as a selective symptom modifying drug in osterarthritis: current data and perspectives. Osteoarthritis Cartilage 1997;5:72.
Rovati LC. Clinical research in osteoarthritis design and result of short-term and long-term trials with disease-modifying agents. Intl J Tissue Reactions 1992;14:243-51.
Shankland WE. The effects of glucosamine and chondroitin sulfate on osteoarthritis of the TMJ: a preliminary report of 50 patients. J Craniomandib Practice 1998;16:230-235.
Tannis AJ, et al. Effect of glucosamine supplementation on fasting and non-fasting plasma glucose and serum insulin concentrations in healthy individuals. Osteoarthritis Cartilage 2004;12(6):506-511.
Tapadinhas MJ, et al. Oral glucosamine sulphate in the management of arthrosis: report of a multicentre open investigation in Portugal. Pharmacotherapeutica 1982;3:157-68.
Thie NM, et al. Evaluation of glucosamine sulfate compared to ibuprofen for the treatment of temporomandibular joint osteoarthritis: a randomized double blind controlled 3 month clinical trial. J Rheumatol 2001;28(6):1347-55.
Vajaradul Y. Double-blind clinical evaluation of intra-articular glucosamine in outpatients with gonarthrosis. Clin Ther 1981;3(5):336-343.
Vajranetra P. Clinical trial of glucosamine compounds for osteoarthrosis of knee joints. J Med Assoc Thai. 1984 Jul;67(7):409-418. Vas AL.
Double-blind clinical evidence of the relative efficacy of ibuprofen and glucosamine sulphate in the management of osteoporosis of the knee in out-patients. Current Med Research Opinions 1982;8:145-149.

Usha PR, Naidu MUR. Randomized, double-blind, parallel, placebo-controlled study of oral glucosamine, methylsulfonylmethane and their combination in osteoarthritis. Clin Drug Invest 2004;24:353-363.
Kim LS, Axelrod LJ, et al. Efficacy of methylsulfonylmethane (MSM) in osteoarthritis pain of the knee: a pilot clinical trial. Osteoarthritis Cartilage 2006;14:286-294.

Wigler I, Grotto I, et al. The effects of Zintona EC (a ginger extract) on symptomatic gonarthritis. Osteoarthritis Cartilage 2003;11:783-789.
Altman RD, Marcussen KC. Effects of a ginger extract on knee pain in patients with osteoarthritis - significant superiority over the placebo group. Arthritis Rheum 2001;44:2531-8.

