Treatment of Chronic Pain in Patients with Osteoarthritis of the Hip and Knee with a Combination of Hydroxytyrosol, Omega 3 Fatty Acids and Curcumin: Results of a Pilot Study

Chronic pain is the most common symptom of osteoarthritis and is very often accompanied by limitations in the performance of activities of daily living and has a negative impact on patients’ quality of life. It is estimated that 14% of the elderly population routinely use NSAIDs for pain management, not without serious adverse effects. Objective: We aimed to test the efficacy and possible side effects of OliminaDol (encapsulated combination of purified hydroxytyrosol, omega-3 fatty acids and curcumin) in the treatment of chronic osteoarthritis pain. Seventy-four patients with a diagnosis of osteoarthritis who had chronic pain were selected. The therapeutic intervention consisted of self-administering one capsule of the supplement every 12 h for 30 days. A visual analogue scale (VAS) was used for pain assessment. The efficacy was assessed by comparing the means of pain intensity at baseline and at the end of treatment. The data on the National Cancer Institute (NCI-CTCAE) version 4 criteria were also analyzed. Results: Thirty-six patients were evaluable for the primary objective. The mean value + standard deviation of pain intensity measured by the VAS scale at day +1 was 5.78 + 0.15 and the mean value of pain 30 days after initiation of treatment was 4.19 + 0.22. There was a decrease in pain intensity of 1.63 + 2.28 with p = 0.000. A total of 27 patients (75%) had pain reduction and in 19 of them (52.7%), the difference was greater than 2 points on the VAS scale. OliminaDOL administration was associated with very few and insignificant side effects, notably constipation in two patients (5.4%) and a fishy taste in three patients (8.1%). Conclusions: The administration of OliminaDOL produced a significant decrease in the mean value of pain intensity without side effects. These results, together with other published studies, demonstrate the possibility that some supplements, or a combination of them as in our case, can be an alternative for the treatment of chronic pain.