Clinical Trial Design runs on your own machine — the client starts it, so there is no endpoint to ping. 51 installs a week from npm. Last commit 3 May 2026.
Phase 2/3 clinical trial design via gsDesign / gsDesign2: sample size, GS boundaries, multiplicity
Nothing serious here today
Today is the operative word: we check Clinical Trial Design every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Connect this server
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add clinical-trial-design -- npx -y clinical-trial-design{
"mcpServers": {
"clinical-trial-design": {
"command": "npx",
"args": [
"-y",
"clinical-trial-design"
]
}
}
}[mcp_servers.clinical-trial-design]
command = "npx"
args = ["-y", "clinical-trial-design"]{
"mcpServers": {
"clinical-trial-design": {
"command": "npx",
"args": [
"-y",
"clinical-trial-design"
]
}
}
}{
"servers": {
"clinical-trial-design": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"clinical-trial-design"
]
}
}
}Optional settings from the registry entry, left out of the block above:
DESIGNR_RSCRIPT (Optional override for the Rscript binary path. Defaults to whatever 'Rscript' resolves to on the system PATH. Set this if R isn't on PATH or you need a specific R version), DESIGNR_LAUNCHER (Optional override for the R launcher path (the inst/launcher.R that sources the R sources and dispatches the JSON). Defaults to the bundled launcher. Set this only if you need to use a non-bundled R source tree).
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Clinical Trial Design — questions
Answers built from our own checks of this server.