Calcitonin
Evidence: B/C — Meaningful Human EvidenceEndocrine / Calcium-Bone Axis Signaling
Evidence Snapshot
What this grade covers
B applies to native CALCA/CGRP identity science and to the firewalled salmon-calcitonin product's own regulatory history. C applies to any claim of native human calcitonin's own direct therapeutic administration efficacy, which no source in this manifest establishes — direct human intervention evidence specific to native (non-salmon) human calcitonin is sparse to absent in the available source base.
Regulatory Context
Native human calcitonin is an endogenous hormone with no dedicated approved product of its own. Marketed calcitonin drug products (e.g., Miacalcin, Fortical) use salmon calcitonin, a sequence-distinct species ortholog with higher receptor potency; branded Miacalcin nasal spray has been discontinued in the US while generic calcitonin-salmon nasal spray remains available (verify current status before publication).
Research Takeaway
Native human calcitonin and Calcitonin Gene-Related Peptide (CGRP) are both derived from tissue-specific alternative processing of the same CALCA gene transcript: calcitonin mRNA is produced in thyroid parafollicular (C) cells, while CGRP mRNA is produced in neurons, yielding two distinct mature peptide hormones from one gene.
See all 3 evidence claims →Quick Summary
Native human calcitonin is a thyroid-gland hormone, better known clinically today as a cancer biomarker (medullary thyroid carcinoma) than as a treatment. Marketed calcitonin drug products use a sequence-distinct salmon form of the hormone, not native human calcitonin.
Mechanism & Research Overview
Native human calcitonin is a thyroid-gland hormone, better known clinically today as a cancer biomarker (medullary thyroid carcinoma) than as a treatment. Marketed calcitonin drug products use a sequence-distinct salmon form of the hormone, not native human calcitonin.
Evidence Claims
Individual scientific statements drawn from the sources cited below, each shown with the specific evidence boundary that statement does not establish.
Supported
Native human calcitonin and Calcitonin Gene-Related Peptide (CGRP) are both derived from tissue-specific alternative processing of the same CALCA gene transcript: calcitonin mRNA is produced in thyroid parafollicular (C) cells, while CGRP mRNA is produced in neurons, yielding two distinct mature peptide hormones from one gene.
Supported
Serum calcitonin is used clinically as a diagnostic and monitoring biomarker for medullary thyroid carcinoma (MTC), per American Thyroid Association guidelines.
Sources: Revised American Thyroid Association Guidelines for the Management of Medullary Thyroid Carcinoma
Supported
Salmon calcitonin — a sequence-distinct species ortholog with higher calcitonin-receptor potency than native human calcitonin — has been marketed since 1975 (e.g., Miacalcin, Fortical) for postmenopausal osteoporosis and Paget's disease of bone. Its FDA labeling states fracture-reduction efficacy has not been demonstrated for the injectable form and includes a periodic-reassessment caution tied to a malignancy-association signal.
Does not establish
Evidence boundary: None of this may be read as evidence about native human calcitonin. No frozen source directly studies native (non-salmon) human calcitonin administered to humans; salmon-calcitonin clinical data must not be substituted as native-hormone evidence.
Sources: MIACALCIN (calcitonin-salmon) — FDA Prescribing Information
Safety & Evidence Limitations
Considerations reported in the sources cited on this page — not a complete list of every possible risk, and not medical advice.
Safety Consideration
Salmon-calcitonin FDA labeling states fracture-reduction efficacy has not been demonstrated for the injection form and carries a periodic-reassessment caution tied to a malignancy-association signal. This applies to the salmon-derived product, not native human calcitonin.Safety Consideration
Calcitonin and Calcitonin Gene-Related Peptide (CGRP) arise from the same CALCA gene via alternative splicing but are distinct mature peptides with distinct receptors and biology; they must not be conflated.
Research Areas Being Studied
Research areas discussed on this page reflect the Endocrine / Calcium-Bone Axis Signaling category and the sources cited below.
Findings Reported in Studies
Educational summary only — reported in cited studies, not a claim of proven benefit.
No Human Study Findings Listed Yet
See preclinical, regulatory, and review sources below.
Study Tables by Evidence Type
Human Studies & Clinical Data
No Human Studies & Clinical Data Listed Yet
This section will be updated as sources are added.
Animal / Cell / Preclinical Data
No Animal / Cell / Preclinical Data Listed Yet
This section will be updated as sources are added.
Regulatory Documents & Official Trial Registries
| Title | Year | Population / Model | Dose / Duration / Finding | Safety Notes | Source |
|---|---|---|---|---|---|
| MIACALCIN (calcitonin-salmon) — FDA Prescribing Information | Salmon calcitonin — a sequence-distinct species ortholog of human calcitonin with higher calcitonin-receptor potency — has been marketed since 1975 (Miacalcin injection/nasal spray; also Fortical) for postmenopausal osteoporosis (>5y postmenopause) and Paget's disease of bone. Labeling states fracture-reduction efficacy has not been demonstrated for the injection form, and includes a periodic-reassessment caution tied to a malignancy-association signal. Branded Miacalcin nasal spray has since been discontinued in the US; generic calcitonin-salmon nasal spray remains available (current status should be reconfirmed at any future publication date). All content here is PRODUCT_SPECIFIC_EVIDENCE for salmon calcitonin, firewalled from native human calcitonin. | No source link available |
Review Articles / Secondary Sources
| Title | Year | Population / Model | Dose / Duration / Finding | Safety Notes | Source |
|---|---|---|---|---|---|
| Revised American Thyroid Association Guidelines for the Management of Medullary Thyroid Carcinoma | 2015 | Major-society clinical practice guideline establishing serum calcitonin's role as a diagnostic and monitoring biomarker for medullary thyroid carcinoma (MTC). |
Anecdotal Reported Patterns — Not Medical Advice
Anecdotal Reported Patterns — Not Medical Advice
Reported dosing patterns are included for educational context only. They are self-reported, unverified, not medical advice, and not instructions for human use. Community-submitted patterns are not yet available in this Phase 1 prototype; this section is a placeholder reserved for moderated, aggregated community data.
Lab Markers to Discuss With a Clinician
Educational topics only — not self-monitoring instructions.
FAQ
Disclaimer
Educational information only. This page summarizes published research and official regulatory information about Calcitonin and does not provide medical advice, an individualized treatment recommendation, or dosing instructions.
Educational use only. This content is provided for informational and research-summary purposes only. It is not medical advice, not a treatment recommendation, not a dosing guide, and not a substitute for care from a licensed medical professional. Nothing here is intended to diagnose, treat, cure, prevent, or mitigate disease. Reported dosing patterns, when shown elsewhere on the site, must be labeled either as Study / Trial Dosing or Anecdotal Reported Patterns — Not Medical Advice. Community reports are self-reported, unverified, and not scientific proof.
Community-reported experiences, once enabled, must be displayed only as moderated, anonymized, or aggregated data. They are anecdotal, self-reported, unverified, and should never be presented as proof of safety, efficacy, or expected results.
Content status: Published. Last updated .
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