Close this search box.

MenaQ7 K2 Cardio Study Registered

MenaQ7 K2 Cardio Study Registered

Greek study will use the highest dosage of Vitamin K2 as MK-7 so far, further proof of MenaQ7® K2 safety.


Oslo, Norway and East Brunswick, NJ (8 June 2021) Ex-NattoPharma is excited to announce that a new 1.5-year clinical trial using MenaQ7® Vitamin K2 as MK-7 has been registered on The trial will examine the cardiovascular impact in a patient population and will use the highest dosage of K2 as MK-7 to date: 1mg daily.


The new multi-centre, placebo-controlled, randomized, open-label intervention clinical trial, “The Effect of Vitamin K2 Supplementation on Arterial Stiffness and Cardiovascular Events in PEritonial DIAlysis (VIKIPEDIA)”, will be conducted with Peritoneal Dialysis (PD) patients. The investigators at Aristotle University of Thessaloniki in Greece will study the effect of K2 supplementation (through normalization of dp-ucMGP) on arterial stiffness and the occurrence of cardiovascular events.


Chronic Kidney Disease (CKD) is a state of progressive vascular calcification and cardiovascular disease. End Stage Kidney Disease patients receive renal replacement therapy either by hemodialysis or by PD, according to lead researcher Stefanos Roumeliotis , MD, PhD. “Several studies have shown that hemodialysis patients have vitamin K depletion and accelerated vascular calcification ,and this finding led to the initiation of several randomized controlled trials exploring the effect of vitamin K2 supplementation on vascular calcification in hemodialysis patients.


“VIKIPEDIA is the first study to assess whether high dosage of Menaquinone-7 could improve arterial stiffness, mortality, cardiovascular disease, 24-hour ambulatory blood pressure and dialysis efficacy in patients with PD,” he explains. “MenaQ7® was chosen to be used in the study because the compound showed its efficacy to improve vitamin K status in many clinical trials with kidney patients.”


At baseline, all eligible patients who have provided a written, informed consent will be enrolled in the study. Αortic stiffness and vitamin K status will be assessed by PWV and plasma dp-ucMGP levels respectively. Before randomization, the investigators will draw blood (serum and plasma) and PD fluid samples from all patients to measure blood count and routine biochemical parameters, including urea, creatinine, potassium, sodium, calcium, phosphorus, c-reactive protein, alkaline phosphatase, albumin, parathormone, 25-OH D3, magnesium, glycated hemoglobin, thyroid function hormones. Since both vitamin D and magnesium are considered of utmost importance in vitamin K metabolism, after baseline, patients with vitamin D and/or magnesium depletion will be treated with oral supplements to achieve normal levels of both elements, before randomization. The cohort will then be categorized to one of the two groups (placebo or active group) and the treatment period will last 1.5 years. To ensure that the two parallel groups will include patients that will not differ significantly in vitamin K and stiffness, patients will be accordingly stratified. After randomization, all patients will continue their routine, standard medical treatment and patients in the treatment group will additionally receive daily, per 1 mg of vitamin K2 (MenaQ7®, ex-Nattopharma, ASA, Hovik, Norway).


It is important to note, according to Dr. Hogne Vik, Chief Medical Officer with ex-NattoPharma, that researchers recognized the importance of optimal level of vitamin D and magnesium to support function of vitamin K2. That is why patients deficient with vitamin D or magnesium will be treated with theses nutrients to reach normal levels before randomization.


“People with kidney problems exhibits low vitamin K status, which has been shown to increase cardiovascular disease as well as mortality risk,” explains Dr. Vik. “Vitamin K2 supplementation was shown to be effective to improve vitamin K status in kidney patients to some extent. However, none of these trials have been conducted in PD patients, but only in pre-dialysis CKD or haemodialysis subjects or kidney transplant patients.


“VIKIPEDIA represents two important firsts: it will be the first trial in PD patients, and the first time this high dosage of vitamin K2 as MK-7 will be used, which supports high safety profile of this nutrient,” adds Dr. Vik. “We are thrilled because this study will add to the already substantial evidence that MenaQ7 Vitamin K2 is an important cardiovascular-support nutrient, and it presents great hope for an at-risk patient population.”


The study is scheduled to start in September 2021. The researchers will collaborate with long-time ex-NattoPharma research partner Masstricht University to evaluate vitamin K status.


About ex-NattoPharma


As the Vitamin K2 world leader, ex-NattoPharma’s ironclad science portfolio is the foundation for today’s understanding of K2 and is the basis for all industry claims about the benefits of K2.


Two things separate ex-NattoPharma from other Vitamin K2 suppliers. First, we offer the ONLY K2 as MK-7 clinically validated to deliver health benefits. With more than 20 human clinical trials where MenaQ7 K2 was the actual source material, we have demonstrated the K2 mechanism, safe and effective dosages, and the importance of K2 for bone and cardiovascular health, all while simultaneously verifying our brand’s efficacy.


Second, NattoPharma provides the MOST comprehensive K2 portfolio – both natural fermented and nature-identical synthesis in various dilutions and solubilities – offering solutions for brand owners to make Vitamin K2 available in a broader range of finished product dose forms. The MenaQ7® Solution Platform opens opportunities to formulate with multiple active ingredients, guided by the experts of the ex-NattoPharma R&D team.


A ex-NattoPharma partnership does not end once kilos are delivered. We are invested in your success and positioned to ensure you achieve it.