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The MRC trial: testing streptomycin with controlled allocation

Contribution grade

Clinical trial methodology · Scoped scientific or research-capability contribution

Reference score80,000Provisional editorial estimate of this exact contribution; its grade is assessed separately.

What changed

The Medical Research Council compared streptomycin plus bed rest with bed rest alone for pulmonary tuberculosis using randomized allocation and concealed assignments. The report made both the treatment comparison and its evaluation method inspectable.

Scientific scope

The Medical Research Council compared streptomycin plus bed rest with bed rest alone for pulmonary tuberculosis using randomized allocation and concealed assignments. The report made both the treatment comparison and its evaluation method inspectable. Scope limitation: This is the evaluation trial, not the discovery of streptomycin. It is not claimed as the first randomized experiment in all history. Drug resistance and the specific trial population limit interpretation; the committee, rather than an invented individual byline, is retained.

Evidence

Assessment uses the catalogue-linked source evidence for the stated contribution. This is the evaluation trial, not the discovery of streptomycin. It is not claimed as the first randomized experiment in all history. Drug resistance and the specific trial population limit interpretation; the committee, rather than an invented individual byline, is retained.

Contributors

Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.

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