Disease × agent evidence record

Captopril for Hypertension: evidence, trials and status

Captopril has both completed registered trials and synthesis-level publications linked to Hypertension. That is the strongest profile in this database, but the summaries here do not extract effect sizes, so read the linked reviews for direction and magnitude of benefit.

4 registered trials 0 recruiting 15 publications Evidence tier A · Strong Score 58.5
Research Tracker › Pairs › Hypertension › Captopril
Research map, not treatment advice. This page aggregates registry and literature records. It does not evaluate efficacy, dosing or safety for any individual. Discuss any treatment decision with a qualified clinician.

Summary

Captopril has reached the approved stage (maximum clinical phase 4) for at least one indication, so its use in Hypertension would be drug repurposing rather than first-in-human development. This does not mean it is approved for Hypertension. ClinicalTrials.gov lists 4 registered trials linking Captopril to Hypertension: 2 have completed; 2 are terminated, withdrawn, suspended or of unknown status. The most advanced is Phase 3 (NCT06141200). It plans or enrolled 286 participants. Registration activity spans 2016 to 2024. The literature layer holds 15 publications for this pair: 4 Cochrane reviews, 4 meta-analyses, 2 systematic reviews and 5 clinical trial publications. Publication years run from 2001 to 2026. Because at least one synthesis-level source exists (systematic review, meta-analysis or Cochrane review), this pair has been assessed beyond single studies, although the synthesis may concern a different indication.

The RepurpOS disease-intelligence file for Essential Hypertension ranks 376 candidate therapeutics from Open Targets, ChEMBL, DGIdb and PubMed; only a minority carry direct clinical evidence, and this page covers one of those. Spontaneous remission context recorded for the condition: Not well-characterized as population baseline; routinely framed as irreversible in clinical culture despite contrary trial evidence.

Open in Repurposing ExplorerHypertension hubHypertension biomarkers & interventionsChEMBLOpen Targets

Evidence table

Evidence tierA · Strong
Evidence score58.5 (trials 8.5, literature 30.0, tier 15, approved bonus 5.0)
Registered trials4 total: 0 recruiting, 0 active / not yet recruiting, 2 completed, 2 other
Linked publications15 (5 clinical trial publications, 4 Cochrane reviews, 4 meta-analyses, 2 systematic reviews)
Agent typeDrug (Small molecule)
Development stage (any indication)Approved
Mechanism / classNot recorded
Data sourcesOpen Targets, ChEMBL
How the evidence score is calculated
  • Each registered trial scores by status (recruiting / active / enrolling 3, completed 2.5, not yet recruiting 2, unknown 1, terminated / withdrawn / suspended 0.5) plus a phase bonus (phase 3-4 +2, phase 2 +1, phase 1 +0.5). The trial component is capped at 30.
  • Each literature item scores by design (Cochrane review 5, meta-analysis 4, systematic review 3, RCT 3, clinical trial publication 2, curated reference 1.5, other PubMed record 1). The literature component is capped at 30.
  • The existing evidence tier adds 15 (A / Strong), 10 (B / Moderate), 5 (C / Preliminary) or 0 (D / Anecdotal).
  • Agents approved for any indication (max clinical phase 4) add 5, because an approved agent has an established safety profile that lowers the barrier to repurposing trials.
  • The score ranks what has been studied, not what works. It does not read effect sizes or directions of effect.

Registered clinical trials

NCT IDTitleStatusPhaseEnrolment
NCT06141200NW Roselle in Grade 1 Essential Hypertension: Phase III Clinical Trial
2024
status unknownPhase 3286
NCT06500000The Plasma Metabolomics Profiling of Primary Aldosteronism
2022
completedNot applicable95
NCT07272486The Use of Virtual Reality and Music Therapy for Hypertensive Urgency
2024
completedNot applicable130
NCT03179163Peripheral Vascular Effects of Sulfhydryl-containing Antihypertensive Pharmacotherapy on Microvessels in Humans
2016
terminatedPHASE1, PHASE210

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Published literature

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Mechanism and notes

No mechanism of action is recorded for this pair in the source databases.

OSMF's existing evidence tier for this pair is A (Strong), derived from the strength of the disease association recorded in Open Targets and ChEMBL. The tier describes how well the drug-disease link is documented, not how well the drug works.

Frequently asked questions

Is Captopril approved for Hypertension?

Captopril has reached the approved stage (maximum clinical phase 4) for at least one indication, so its use in Hypertension would be drug repurposing rather than first-in-human development. This does not mean it is approved for Hypertension. Approval status for the specific indication should always be confirmed with the relevant regulator and prescribing information.

Is Captopril in clinical trials for Hypertension?

ClinicalTrials.gov lists 4 registered trials linking Captopril to Hypertension: 2 have completed; 2 are terminated, withdrawn, suspended or of unknown status. The most advanced is Phase 3 (NCT06141200). It plans or enrolled 286 participants. Registration activity spans 2016 to 2024.

What does the evidence show for Captopril in Hypertension?

Captopril has both completed registered trials and synthesis-level publications linked to Hypertension. That is the strongest profile in this database, but the summaries here do not extract effect sizes, so read the linked reviews for direction and magnitude of benefit. OSMF's existing evidence tier for this pair is A (Strong), derived from the strength of the disease association recorded in Open Targets and ChEMBL. The tier describes how well the drug-disease link is documented, not how well the drug works.

Cite this page

Open Source Medicine Foundation. Captopril for Hypertension: evidence, trials and status. OSMF Research Tracker. Updated 2026-07-05. https://research.opensourcemed.info/pairs/essential-hypertension/captopril.html

Data: ClinicalTrials.gov, PubMed, Open Targets, ChEMBL, DGIdb and the OSMF therapeutic agent database. Last updated 2026-07-05. Page built 2026-10-07.

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This is a research map, not treatment advice. Evidence tiers and scores summarise what has been studied, not whether a treatment works or is safe for you.