Does Cannabis Reduce Symptoms or Inflammation in Patients with IBD?

Principal Investigator: Madeline McGuire Bertha, MD, MS Medical marijuana use has grown among patients attempting to tamp down the debilitating effects of Inflammatory Bowel Disease (IBD). However, no one knows if cannabis improves intestinal inflammation—critical to treating IBD. In fact, marijuana could be simply masking symptoms and delaying necessary medical treatment. To determine if that’s the case, Northwestern Medicine researchers led by internal medicine resident Madeline McGuire Bertha, MD, MS, will compare patients in symptomatic remission (feeling well/ without symptoms) who use marijuana to those in symptomatic remission who do not use it. The researchers suspect that while patients using cannabis feel fine, they actually may have a higher level of dangerous, underlying inflammatory activity than their perceived “lack of intestinal distress” might imply.   Supported by a grant from the Digestive Health Foundation, the investigators will use blood and fecal tests to assess levels of intestinal inflammation in the two groups. In particular, they will focus on measuring a blood marker of inflammation, C-Reactive Protein, and a stool marker, fecal calprotectin. If the study hypothesis holds true, the IBD patients using marijuana as a proposed alternative or complementary therapy will be found to have significantly higher levels of these inflammatory markers compared to non-cannabis users who experience no symptoms. Findings of this study will help to advance the limited data assessing the therapeutic efficacy of cannabis on objective markers of intestinal inflammation in patients with IBD. These research efforts could have important clinical and societal implications as medical marijuana becomes more widespread. New knowledge in this area could help both ordering physicians and patients to make more informed...

Does Use of Methotrexate Impact Male Fertility in IBD Patients

Principal Investigator: Anne Grosen, MD Immunosuppressive drugs have made living with inflammatory bowel disease (IBD) easier. But these powerful medications have their drawbacks, especially when it comes to potentially affecting future fertility. Complicating matters, IBD often strikes people during their key reproductive years. Patients’ fertility fears may dissuade them from taking effective medication that could help them to better manage their disease. Methotrexate (MTX) is a commonly prescribed drug treatment for IBD. Linked to birth defects, though, it is not recommended for pregnant women. How the drug affects a man’s ability to start a family remains a mystery. Funded by a Digestive Health Foundation grant, Northwestern Medicine researchers led by visiting scholar Anne Grosen, MD, from Aarhus University Hospital in Denmark, plan to shed light on the effects of this potent drug by examining several markers of male fertility, including sperm quality and reproductive hormones.   Dr. Grosen’s research team, which includes GI and fertility and reproductive medicine specialists, will focus on adult males (ages 18 to 45) who have been diagnosed with Crohn’s disease or ulcerative colitis. Seen by the IBD team at Northwestern Medicine, these individuals are either planning to start MTX treatment or are currently taking the drug for their disease. A healthy control group will participate in a separate study in Denmark and be used for comparative purposes. By analyzing MTX metabolites and other biomarkers in blood and semen samples, the investigators hope to determine if MTX makes a clinically relevant impact on male fertility. Study findings of this trans-Atlantic collaboration have the potential to improve future patient care by allaying concerns about drug safety...