Abstract
The special formulation MA212 (Rosaxan) is composed of rosehip (Rosa canina L.) puree/juice concentrate, nettle (Urtica dioica L.) leaf extract, and devilʼs claw (Harpagophytum procumbens DC. ex Meisn. or Harpagophytum zeyheri Decne.) root extract and also supplies vitamin D. It is a food for special medical
purposes ([EU] No 609/2013) for the dietary management of pain in patients with gonarthritis.
This 12-week randomized, placebo-controlled double-blind parallel-design study aimed
to investigate the efficacy and safety of MA212 versus placebo in patients with gonarthritis.
A 3D-HPLC-fingerprint (3-dimensional high pressure liquid chromatography fingerprint)
of MA212 demonstrated the presence of its herbal ingredients. Ninety-two randomized
patients consumed 40 mL of MA212 (n = 46) or placebo (n = 44) daily. The Western Ontario
and McMaster Universities Arthritis Index (WOMAC), quality-of-life scores at 0, 6,
and 12 weeks, and analgesic consumption were documented. Statistically, the initial
WOMAC subscores/scores did not differ between groups. During the study, their means
significantly improved in both groups. The mean pre-post change of the WOMAC pain
score (primary endpoint) was 29.87 in the MA212 group and 10.23 in the placebo group.
The group difference demonstrated a significant superiority in favor of MA212 (pU < 0.001; pt < 0.001). Group comparisons of all WOMAC subscores/scores at 6 and 12 weeks reached
same significances. Compared to placebo, both physical and mental quality of life
significantly improved with MA212. There was a trend towards reduced analgesics consumption
with MA212, compared to placebo. In the final efficacy evaluation, physicians (pChi < 0.001) and patients (pChi < 0.001) rated MA212 superior to placebo. MA212 was well tolerated.
This study demonstrates excellent efficacy for MA212 in gonarthritis patients.
Key words knee osteoarthritis - clinical trial -
Rosa canina L. - Rosaceae -
Urtica dioica L. - Urticaceae -
Harpagophytum procumbens DC. ex Meisn./
Harpagophytum zeyheri Decne. - Pedaliaceae - WOMAC