Posted 4/15/2018 6:13 AM (GMT 0)
Insurance companies often will want you to try imuran first, because it has been available much longer and is much, much less expensive than Remicade or Humira (or any of the other biologics).
But if your disease is pretty severely active, you might be able to get approval for a biologic without having to give imuran a try first. The thing with imuran is that it can take several months to kick in fully, so it's only worth trying first (and by itself) if you have several months to wait and see, ie, if your disease isn't terrible right now.
Imuran is modestly effective, statistically speaking - perhaps better than mesalamines like Asacol, but not nearly as effective as the biologics. It requires frequent blood tests, especially in the first few months.
Remicade, Humira, and other biologics (Entyvio is becoming very popular for UC treatment) are much more expensive, but they're generally more effective (not for everybody, but statistically speaking again).
As to which biologic to choose, it will depend on which your insurance will approve. There haven't been any head-to-head comparisons to see which one is best (some comparison studies might be ongoing right now, but results won't be out for a couple years at the soonest).
Remicade and Humira both have the same method of action, and, theoretically, should be equally effective. But in reality that's not quite true. Humira is self-injected, while Remicade requires going in every few weeks for a few hours for an infusion directly into the bloodstream. Because of that, Remicade dosing is easier to adjust and control, and it *seems* to be *slightly* more effective than Humira, because the medicine being infused gets to the tissue better than with Humira, which has to go from the injection site, into the bloodstream, and then to the tissue (colon).
Entyvio can take a little longer to work than Remi or Humira (but probably quicker than imuran), but its side effect profile & risks might be a little better than Remi or Humira.
Side effects vary from person to person, but overall are pretty similar between imuran and the biologics - mostly increased risk of infection, a small increased risk of lymphoma, and rare cases of liver or pancreas issues or other reactions.
The most effective treatment to date is actually the combination of imuran plus a biologic. Statistically, this is a little better than a biologic alone. Perhaps more importantly, being in imuran along with a biologic significantly reduces one's odds of developing antibodies to the biologic - meaning better odds of being able to stay on the biologic successfully for a longer time.
So, if you're miserable with severe disease, jump straight to a biologic PLUS imuran. If you're doing semi-ok but not great and have time to give imuran a chance, start on it and see how it goes. Add a biologic if you worsen or show no improvement in the next few months.