RARE DISEASERESEARCH ATLAS

ORPHA:642671

Familial hyperaldosteronism type IV

low confidenceDisorder

Also known as: FH4

Publications

2,897

Trials

0

Interventional, condition-specific

Researchers

304

Distinct authors in sample

Gene link

CACNA1H

Strong

Readiness

3/6

Stages with a signal

Clinical definition (Orphanet)

A rare familial hyperaldosteronism characterized by elevated aldosterone levels and low plasma renin activity, early-onset hypertension, and hypokalemia. , learning disabilities, behavioral abnormalities, and attention deficit disorder are observed in some patients.

How rare: <1 / 1 000 000 — fewer than one in a million. In a city the size of Kolkata, that might mean on the order of fifteen people.

Orphanet entry

Cross-references

Joined from Mondo / Orphanet. MeSH labels may enter searches; UMLS / OMIM / NCIT are stored for reference.

Additional Mondo synonyms (4)

HALD4 · familial hyperaldosteronism type IV · hyperaldosteronism, familial, type IV · hyperaldosteronism, familial, type IV; HALD4

Research stages

Trial readiness signals

Where this condition sits on an open-data research pipeline — not how close a treatment is, and not medical advice. Empty stages often mean “not in these databases under this Mondo ID,” not “impossible.”

3/6 stages with a signal

No matched interventional trial; the gene is known and literature exists — preclinical or natural-history work may still be the practical next step.

  1. Gene identifiedPresent

    Strong — CACNA1H

  2. LiteraturePresent

    2,897 matched papers (2,009 in last 10 years) Source

  3. Phenotype characterisedPresent

    3 HPO annotations (e.g. Increased circulating aldosterone concentration; Hypertension; Elevated aldosterone:renin ratio) Source

  4. Animal modelNot found

    No Alliance genotype “model of” associations via Monarch for these Mondo IDs

  5. Orphan designationNot found

    No FDA or EMA orphan-drug designation matched this disease via UMLS or preferred name Source

  6. Interventional trialNot found

    No matched interventional trial under our ClinicalTrials.gov rules

Biology

Genes and phenotypes

Gene–disease validity from GenCC, plus phenotypes and animal models joined from Monarch Initiative via Mondo ID — not a clinical diagnosis aid.

Do we know what causes it?

Yes — we know a specific gene responsible (CACNA1H).

GenCC classification: Strong.

Phenotypes (Monarch / HPO)

3

Associated phenotypes · MONDO:0014875

  • Increased circulating aldosterone concentration
  • Hypertension
  • Elevated aldosterone:renin ratio

Animal models (Monarch / Alliance)

None returned for this Mondo ID. Empty here is not proof that no model organism work exists under another name or gene.

Monarch fetch 2026-07-29

Therapies

Designations, candidates, and chemicals

FDA OOPD and EMA orphan designations, Open Targets clinical candidates, and CTD chemical associations via MyDisease.info. These never change the interventional-trial headline.

Orphan designation (FDA · EMA)

No designation matched this disease via UMLS or preferred name on the FDA OOPD mirror or EMA orphan register. Absence here is not proof that none exists under another wording.

Open Targets candidates

No drugs or clinical candidates returned for this Mondo ID on Open Targets.

CTD chemicals (MyDisease.info)

No CTD chemical associations returned for this Mondo ID.

Literature

Is anyone studying this?

2,897

2,897 papers have been published on this condition. That is a real research literature — still far smaller than common diseases (breast cancer: over 700,000 papers). Median papers in the last 10 years for a rare disease in this dataset (publications denominator n=3967) is 59.

2,897 papers since the earliest indexed year in this search — median last-10-year count for a rare disease in this dataset is 59 (publications denominator n=3967).

2,009 in the last 10 years · low confidence

Phrase hits: 34 · MeSH hits: 0

Open Europe PMC search

Who's working on it?

304

Distinct author names in 34 sampled papers — named people below.

Who's working on it?

No interventional trial matched this name; these authors publish on it in the sampled literature — a practical starting point for contact.

  1. 01
    Li L3 papers · 2026

    BGI-Wuhan Clinical Laboratory, BGI-Shenzhen, 430074, Wuhan, China.

    Papers in Europe PMC
  2. 02
    Markó L2 papers · 2021

    Berlin Institute of Health at Charité-Universitätsmedizin Berlin, 10117 Berlin, Germany.

    Papers in Europe PMC
  3. 03
    Piaditis GP2 papers · 2021

    Department of Endocrinology and Diabetes Center, G. Gennimatas General Hospital, 11527 Athens, Greece.

    Papers in Europe PMC
  4. 04
    Pitsava G2 papers · 2022

    Division of Intramural Research, Division of Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA.

    Papers in Europe PMC
  5. 05
    Schewe J2 papers · 2021

    Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Nephrology and Medical Intensive Care, 13353, Berlin, Germany.

    Papers in Europe PMC
  6. 06
    Scholl UI2 papers · 2021

    Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Nephrology and Medical Intensive Care, 13353, Berlin, Germany. ute.scholl@charite.de.

    Papers in Europe PMC
  7. 07
    Seidel E2 papers · 2021

    Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Nephrology and Medical Intensive Care, 13353, Berlin, Germany.

    Papers in Europe PMC
  8. 08
    Stratakis CA2 papers · 2022

    Section on Endocrinology and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA.

    Papers in Europe PMC
  9. 09
    Tetti M2 papers · 2018

    Division of Internal Medicine and Hypertension Unit, Department of Medical Sciences, University of Torino, Via Genova 3, 10126 Torino, Italy. tetti.martina@gmail.com.

    Papers in Europe PMC
  10. 10
    Vitorino PVO2 papers · 2021

    Pontifícia Universidade Católica de Goiás , Goiânia , GO - Brasil.

    Papers in Europe PMC

Clinical research

Is a treatment being tested?

0

interventional trials for this specific condition

No interventional trial testing a treatment matched this specific condition name on ClinicalTrials.gov (observational studies and pan-disease registries are listed separately when present).

Data as of 11 September 2026 · last trial check 11 September 2026

No matched interventional trials. This is true for 77.2% of diseases in the trials denominator (5501 of 7126). Here are the researchers publishing on it.

low confidence · 38.6th percentile (trials denominator)

Recruiting interventional trials

From the matched ClinicalTrials.gov set

No interventional trial testing a treatment was found for this specific condition name on ClinicalTrials.gov.

Broader category familial hyperaldosteronism also has no matched interventional trial. See who's working on it — people publishing on this disease are often the practical next contact when no trial is listed.

Broader category: familial hyperaldosteronism

0

Interventional trials for the parent category, exclusive of NCT IDs already counted above. Eligibility for this subtype is not guaranteed.

Parent-category matching found a broader label but no interventional trials under it. How we count trials.

Other registries (secondary)

Broader net from EU CTIS, ISRCTN, and ICTRP when available — deduped against ClinicalTrials.gov IDs already counted above. Dual-model LLM relevance gates what we keep. These rows are not added to the interventional headline.

raw 60 · after dedupe 59 · already on CT.gov 0 · kept 0 · parent 0 · uncertain 59 · dropped 0 · fetched 2026-07-30

Source notes: ictrp: Error: ICTRP public search unavailable (WHO portal is SPA-only; SOAP needs partnership). Tried: https://apps.who.int/tri

No secondary-registry studies passed dual-model relevance for this condition name (after dedupe).

Uncertain / not reviewed (59)

Where to find support

Condition-specific patient organisations, when Orphanet lists them, are on the disease’s Orphanet page. We also link umbrella groups that support undiagnosed and ultra-rare families.

Orphanet entry for Familial hyperaldosteronism type IV — check Associations / patient organisations on that page.

India — NPRD

Last verified 2026-07-26

This ORPHAcode is not on our curated NPRD list (direct or Mondo-parent match). That does not decide clinical eligibility; families in India should ask a notified Centre of Excellence about current coverage.

Hand-curated for this project. ORPHAcode mappings are best-effort and may be incomplete or imprecise for umbrella categories. Parent (Mondo) matches mean the policy lists a broader category — confirm eligibility with a Centre of Excellence. Financial entitlements summarised from public policy statements and may change. This is not official government guidance.

How we counted this

Europe PMC query (preferred label + any corrected label + Orphanet and Mondo exact synonyms, stoplisted; unioned with resolved MeSH labels when available). UMLS / OMIM / NCIT cross-references are stored on the overview but are not added to the query string.

("Familial hyperaldosteronism type IV" OR "HALD4" OR "hyperaldosteronism, familial, type IV" OR "hyperaldosteronism, familial, type IV; HALD4") OR ("CACNA1H" OR "CACNA1H syndrome" OR "CACNA1H-related")

Run this search on Europe PMC

ClinicalTrials.gov query (quoted phrases + MeSH via query.cond, plus recall-expansion terms when used):

"Familial hyperaldosteronism type IV" OR "HALD4" OR "hyperaldosteronism, familial, type IV" OR "hyperaldosteronism, familial, type IV; HALD4"

Study-type breakdown: 0 interventional · 0 observational · 0 expanded access. Only interventional studies enter the trial headline.

Parent-category trials query:

"familial hyperaldosteronism"

Query health: ok — strategies attempted: phrase; with hits: phrase

Run this search on ClinicalTrials.gov

Synonyms dropped by stoplist: FH4

Confidence reasoning

  • Preferred label is multi-word and distinctive
  • 1 synonym(s) dropped by stoplist (may under-count)
  • No label/synonym collisions with other diseases in this corpus
  • Publication count (2897) is implausibly high for prevalence class "<1 / 1 000 000" — treat as possible over-matching, not a measure of research intensity

Ingested 2026-07-27T19:36:29.296Z