What is the “DDI trial” for sulfasalazine?
“DDI” usually refers to a drug–drug interaction. If you meant the specific interaction study (often labeled something like “drug–drug interaction study” or “DDI trial”) for sulfasalazine, the key details are typically things like:
- which interacting drug was tested with sulfasalazine,
- the dosing schedule (single dose vs steady state),
- study population (healthy volunteers vs patients),
- endpoints (pharmacokinetics such as AUC/Cmax, and sometimes safety).
At the moment, the question doesn’t include the interacting medicine name, sponsor, or the exact trial identifier, so I can’t reliably pinpoint the correct sulfasalazine DDI trial.
Which DDI trial are you looking for?
To find the right trial, look for any of these and share what you have (even partial info):
- the interacting drug name (for example, methotrexate, warfarin, azathioprine, folic acid, etc.)
- the trial registry ID (NCT number in ClinicalTrials.gov, EU CTR number, ISRCTN, etc.)
- the title snippet or sponsor
- the country or recruiting status
If you paste the text you saw (or the drug name paired with sulfasalazine), I can tell you what the trial is about and what outcomes it reported.
Common drug-interaction themes with sulfasalazine (patient-level context)
Even without the exact DDI trial, sulfasalazine is known for clinically relevant interaction possibilities because it can affect:
- absorption and metabolism pathways,
- folate availability (it can lower folate, which can matter with other folate-related therapies),
- and risks when combined with other drugs that affect liver function or blood counts (so monitoring may be part of interaction studies).
But the exact magnitude and direction of any interaction depends on the specific co-medication and regimen being studied—so the “which DDI trial” question matters.
What I need from you to give the exact answer you want
Reply with one of the following:
1) the interacting drug name you saw paired with sulfasalazine, or
2) the trial registry ID (like NCT…), or
3) a link/screenshot text snippet.
Then I’ll summarize the study design and results tied to that specific sulfasalazine DDI trial.
Sources
No sources were provided in your prompt, and I don’t have enough identifying information to cite a specific sulfasalazine DDI trial yet.