Subreddit rules check
r/clinicaltrials
Can you promote here?
The written rules take no clear position, which is NOT permission: unclear communities enforce norms through removals instead of rulebooks. Sort by top, study which builder posts survived and how they were framed, and when in doubt ask the mods.
Links
No explicit link policy. Default to no URL: link-plus-young-account is one of the most common automated removal patterns on Reddit.
What this community rewards
Dominant post formats: discussion, question, news
No recent top-post samples available; use a clinical, evidence-based tone. Headline: concise summary of the trial/question. Use first person for patient experiences, third person for study summaries. Length: short-to-medium (100–400 words). Posts that score: clear enrollment questions, study results, registry citations, or discussion of trial design. Avoid promotional language or product pitches.
Arriving in the local format matters: cross-posting the same text everywhere reads as tourist instantly. The wider method is in the Reddit playbook.
Classified mechanically from the community's published rules and recent top posts, last checked July 2026. Rules change and moderators have the final say: verify at r/clinicaltrials's rules page before posting anything that matters.
Thread Otter checks this before every send
These profiles power the product: promo-banned communities never receive a promotional draft, drafts arrive in the local format, and a fact-check gate plus human pacing protect the account doing the talking.