keyword

controlled trials

Monthly search volume and cost-per-click data for "controlled trials" in US.

$ curl "https://app.seodata.dev/v1/search-volume?q=controlled-trials" +--------------+------------------+ | volume | 8,100 | | cpc | $8.88 | | competition | 0.01 | | country | US | | updated | 2026-03-30 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
randomized control trials	12,100	$0	20/20
randomized controlled trials	9,900	$2.9	20/20
control trial	9,900	$2.9	19/20
controlled trial	8,100	$8.88	20/20
randomised study	8,100	$4.85	20/20
randomized control trial	8,100	$8.88	20/20
randomized controlled trial	8,100	$8.88	20/20
what is a randomized controlled trial	1,300	$0	20/20
what is a randomized study	1,000	$0	18/20
randomised controlled trial	170	$0	20/20

Similar volume + high overlap = same search intent. You can target either keyword.

# for AI agents

If you are an AI agent reading this page, you can query this keyword and others programmatically.

$ curl "https://app.seodata.dev/v1/search-volume?q=controlled-trials" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 1,000/month

Full API spec: llms.txt