Article Text

other Versions

A Randomised double-blind, placebo-controlled trial of a recombinant version of human alpha fetoprotein (MM-093) in patients with active rheumatoid arthritis.
  1. Louise C Pollard (louise.pollard{at}
  1. King's College London, United Kingdom
    1. Jim Murray (jmurray{at}
    1. Merrimack Pharmaceuticals, Inc, United States
      1. Mark D Moody (mmoody{at}
      1. Merrimack Pharmaceuticals, Inc, United States
        1. Edward J Stewart (tstewart{at}
        1. Merrimack Pharmaceuticals, Inc, United States
          1. Ernest H Choy (ernest.choy{at}
          1. King's College London, United Kingdom


            Objective:RA tends to remit during pregnancy, with more patients achieving remission in the third trimester, coinciding with an increase in levels of alpha fetoprotein (AFP). In vitro and animal studies have shown that AFP has immunomodulatory properties. MM- 093 is a non-glycosylated, recombinant version of human AFP.

            Methods:The safety, tolerability and clinical effects of MM-093 were assessed in this 12-week, randomised, double-blind, placebo-controlled study. Twelve patients with RA, who had active disease and were on stable doses of methotrexate, received weekly subcutaneous injections of placebo or 21mg of MM-093. Assessments were carried out at baseline and weekly thereafter.

            Results:Baseline characteristics were similar in both groups. There was one dropout in the placebo group due to flare of disease. Treatment with MM-093 was well tolerated. No serious adverse event was observed. By day 85 MM-093 produced a statistically significant mean improvement from baseline in DAS28 (0.913 vs 0.008, p=0.033) and patient's global assessment (28.9% vs - 36.3%, p=0.02) compared to placebo.

            Conclusion:This is the first randomized, controlled trial of MM-093, a recombinant version of human AFP, in patients with RA. MM-093 was well tolerated. Evidence of efficacy was observed, suggesting that MM-093 may have therapeutic potential in RA.

            • Alpha-fetoprotein
            • Clinical trial
            • MM-093
            • Rheumatoid Arthritis
            • Treatment

            Statistics from

            Request permissions

            If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.