ORPHA:496689
Kyphoscoliosis-lateral tongue atrophy-hereditary spastic paraplegia syndrome
Also known as: Kyphoscoliosis-lateral tongue atrophy-HSP syndrome
Publications
0
Trials
0
Interventional, condition-specific
Researchers
0
Distinct authors in sample
Gene link
—
Readiness
1/6
Stages with a signal
Clinical definition (Orphanet)
A rare complex spastic paraplegia characterized by to onset of spasticity in the lower limbs, hyperreflexia, tip-toe walking, pes equinus, and delayed motor developmental milestones. Kyphoscoliosis becomes evident in older patients, and most patients show atrophy of the lateral aspects of the tongue. Additional signs may include , language impairment, and moderate upper limb involvement.
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.
Cross-references
Joined from Mondo / Orphanet. MeSH labels may enter searches; UMLS / OMIM / NCIT are stored for reference.
- MONDO:0044648
- UMLS:C5567452
Additional Mondo synonyms (1)
kyphoscoliosis-lateral tongue atrophy-HSP syndrome
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.”
1/6 stages with a signal
Search queries returned nothing — this usually means a naming mismatch, not proof that nothing exists.
- Gene identifiedNot found
No GenCC disease–gene assertion in this build
- LiteratureNot checked
Query returned nothing — not evidence of absence Source
- Phenotype characterisedPresent
22 HPO annotations (e.g. Lower limb hyperreflexia; Kyphoscoliosis; Difficulty standing) Source
- Animal modelNot found
No Alliance genotype “model of” associations via Monarch for these Mondo IDs
- Orphan designationNot found
No FDA or EMA orphan-drug designation matched this disease via UMLS or preferred name Source
- Interventional trialNot checked
Broken query — trial zero not trusted
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?
Not yet — the cause hasn't been pinned down in GenCC.
No strong gene–disease assertion joined for this Orphanet entity.
Phenotypes (Monarch / HPO)
22
Associated phenotypes · MONDO:0044648
- Lower limb hyperreflexia
- Kyphoscoliosis
- Difficulty standing
- Progressive spastic paraplegia
- Lower limb amyotrophy
Showing 5 of 22 — open Monarch for the full list.
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?
0
We found no papers under this exact name — work may still exist under another label.
0 in the last 10 years · low confidence
Phrase hits: 0 · MeSH hits: 0
Who's working on it?
0
Distinct author names in 0 sampled papers.
Who's working on it?
No author names could be extracted from the sampled publications. Try the Europe PMC query in “How we counted this,” or contact an umbrella rare-disease organisation for researcher referrals.
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). 18 trials are registered for hereditary spastic paraplegia, the broader category — shown separately because they may or may not enrol this specific subtype.
Data as of 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
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.
18 interventional trials matched hereditary spastic paraplegia, the broader category — listed below. Those studies are not counted in the condition-specific total.
Broader category: hereditary spastic paraplegia
18
Interventional trials for the parent category, exclusive of NCT IDs already counted above. Eligibility for this subtype is not guaranteed.
Worth raising with a clinician. How we count trials.
Recruiting under the broader category
- NCT07417943·RECRUITING·Neuromodulation to Enhance Motor Function in HSP
Not reviewed·Conditions: Hereditary Spastic Paraplegia·Matched via name phrase
- NCT07136844·RECRUITING·Gait Analysis Parameter and Upper Limb Evaluation in Adult Patients With Neurological or Metabolic Pathology
Not reviewed·Conditions: Neuromuscular Diseases · Obesity (Disorder) · Myotonic Dystrophy 1 · Myasthenic Syndrome·Matched via name phrase
- NCT06948019·NOT YET RECRUITING·Safety and Efficacy of AAV9/AP4B1 (BFB-101) For Patients With AP4B1-related Hereditary Spastic Paraplegia Type 47 (SPG47)
Not reviewed·Conditions: HSP · Hereditary Spastic Paraplegia · Hereditary Spastic Paraparesis · Hereditary Spastic Paraplegia Type 50·Matched via name phrase
- NCT03206190·RECRUITING·The preSPG4 Study - Studying the Prodromal and Early Phase of SPG4
Not reviewed·Conditions: Hereditary Spastic Paraplegia · Hereditary, Spastic Paraplegia, Autosomal Dominant·Matched via name phrase
- NCT07561359·ENROLLING BY INVITATION·12-Week Strength and Functional Exercise Program for Hereditary Spastic Paraplegia Trial (HSPMOVE)
Not reviewed·Conditions: Hereditary Spastic Paraplegia·Matched via name phrase
- NCT06692712·RECRUITING·Phase 3 Efficacy Study With Concurrent Control of IT MELPIDA in SPG50.Concurrent Controls.
Not reviewed·Conditions: Hereditary Spastic Paraplegia Type 50·Matched via name phrase
- NCT07478172·RECRUITING·Effects of Whole-body Electrical Muscle Stimulation Exercise on Adults With Neuromuscular Disease
Not reviewed·Conditions: Neuromuscular Diseases (NMD) · Amyotrophic Lateral Sclerosis · Myasthenia Gravis · Lambert-eaton Myasthenic Syndrome·Matched via name phrase
- NCT06742697·RECRUITING·Flexibility, Resistance, Aerobic, Movement Execution Training in Adults With Hereditary Spastic Paraplegia
Not reviewed·Conditions: Hereditary Spastic Paraplegia·Matched via name phrase
- NCT06478238·RECRUITING·Calcium Folinate Treatment of Spastic Paraplegia 56
Not reviewed·Conditions: Hereditary Spastic Paraplegia·Matched via name phrase
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 0 · after dedupe 0 · already on CT.gov 0 · kept 0 · parent 0 · uncertain 0 · 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).
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 Kyphoscoliosis-lateral tongue atrophy-hereditary spastic paraplegia syndrome — check Associations / patient organisations on that page.
India — NPRD
Last verified 2026-07-26This 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.
"Kyphoscoliosis-lateral tongue atrophy-hereditary spastic paraplegia syndrome" OR "Kyphoscoliosis-lateral tongue atrophy-HSP syndrome"
ClinicalTrials.gov query (quoted phrases + MeSH via query.cond, plus recall-expansion terms when used):
"Kyphoscoliosis-lateral tongue atrophy-hereditary spastic paraplegia syndrome" OR "Kyphoscoliosis-lateral tongue atrophy-HSP syndrome" OR "complex hereditary spastic paraplegia"
Recall-expansion terms: complex hereditary spastic paraplegia
Study-type breakdown: 0 interventional · 0 observational · 0 expanded access. Only interventional studies enter the trial headline.
Parent-category trials query:
"hereditary spastic paraplegia"
Query health: broken — strategies attempted: phrase, recall-expansion; with hits: none
Parent literature probe: complex hereditary spastic paraplegia (MONDO:0015150) — 145 hits
Run this search on ClinicalTrials.gov
Confidence reasoning
- Preferred label is multi-word and distinctive
- No synonyms dropped by stoplist
- No label/synonym collisions with other diseases in this corpus
- Zero publications but parent term complex hereditary spastic paraplegia has 145 — literature likely indexed under a broader name
Ingested 2026-07-27T17:35:03.460Z · excluded from neglect metrics