where to buy FGFR-3 Inhibitors? (medium effort don't expect this again)

[sick kunt31]

Fibroblast growth factor receptor 3 (FGFR3) is a membrane receptor that modulates growth by binding fibroblast growth factors such as FGF18 and FGF9. Once activated, FGFR3 triggers MAPK and STAT signaling cascades that decrease chondrocyte proliferation and accelerate differentiation.

Too much FGFR3 signaling shortens bones (as in achondroplasia). Removing FGFR3 function lengthens bones in animal models.

In mid‑puberty (Tanner stage IV), estrogen rises and pushes the growth plates toward senescence and closure.
(Which I why aromatase inhibitors should be paired but ill get into that another time)

Blocking FGFR3 at this stage could prolong chondrocyte proliferation, slow epiphyseal fusion, and increase final height. Preclinical studies with selective FGFR3 inhibitors have shown increases in femur and tibia length when given before closure.


so as what I'm saying the best drugs are

Recifercept – a soluble decoy receptor that binds FGF ligands and prevents them from activating FGFR3. It was administered by weekly subcutaneousinjections at roughly 1 mg/kg in early trials. Development halted after phase II.

Infigratinib – an oral tyrosine kinase inhibitor of FGFR1–3. In achondroplasia children, about 0.128 mg/kg/day increased height velocity by ~1.5 cm/year. Doses up to 0.25 mg/kg/day are being tested.

Vofatamab – a monoclonal antibody that blocks the extracellular domain of FGFR3. It was used in oncology at 10–20 mg/kg IV every few weeks. Proposed for growth plate modulation but not trialed in adolescents.

Vosoritide – a C‑type natriuretic peptide analog that activates guanylate cyclase and inhibits the MAPK pathway downstream of FGFR3. Approved for achondroplasia; 15 µg/kg/day subcutaneously increases growth velocity by ~1.6 cm/year.
(Ill get into cnp analogs in another thread)
tadalfil can enhance vosoritides effects via pde-5 inhibition which is the enzyme that causes vorsositide to be short acting

Meclozine – an antihistamine found to attenuate FGFR3 signaling in cell models. Doses around 1–2 mg/kg twice daily increased long‑bone length in mice. Safety in adolescents for height is untested.


does anyone know where I can get my hands on these specific ones
or will I have to just buy the raw powder and mix it and take it like creatine

 

[benal22]

how do you even source

 

[hayden20]

Indiamart for mostly generic medicine, If you want you can buy Chinese API powders so the raw chemical powder which is sometimes cheaper for the quantity you get but more risky for contaminents. I found a source of 1g of Erdafitnib (Fgfr3 inhibitor) for 200AUD with COA and everything. If you want to go down that path i'd recommend taking a look at Chemicalbook and searching up your desired compounds.

 

[Muhammedali]

tryra 300 source?

 

[Lexica]

how do you even source

Erdafitinib on indiamart , very potent, so potent in fact pediatric cancer patients grew so quickly they had to get suirgery to fix their twisted spines. It forces growth plates

 

[benal22]

tyra-300 mogs

 

[pingukraz]

Fibroblast growth factor receptor 3 (FGFR3) is a membrane receptor that modulates growth by binding fibroblast growth factors such as FGF18 and FGF9. Once activated, FGFR3 triggers MAPK and STAT signaling cascades that decrease chondrocyte proliferation and accelerate differentiation.

Too much FGFR3 signaling shortens bones (as in achondroplasia). Removing FGFR3 function lengthens bones in animal models.

In mid‑puberty (Tanner stage IV), estrogen rises and pushes the growth plates toward senescence and closure.
(Which I why aromatase inhibitors should be paired but ill get into that another time)

Blocking FGFR3 at this stage could prolong chondrocyte proliferation, slow epiphyseal fusion, and increase final height. Preclinical studies with selective FGFR3 inhibitors have shown increases in femur and tibia length when given before closure.


so as what I'm saying the best drugs are

Recifercept – a soluble decoy receptor that binds FGF ligands and prevents them from activating FGFR3. It was administered by weekly subcutaneousinjections at roughly 1 mg/kg in early trials. Development halted after phase II.

Infigratinib – an oral tyrosine kinase inhibitor of FGFR1–3. In achondroplasia children, about 0.128 mg/kg/day increased height velocity by ~1.5 cm/year. Doses up to 0.25 mg/kg/day are being tested.

Vofatamab – a monoclonal antibody that blocks the extracellular domain of FGFR3. It was used in oncology at 10–20 mg/kg IV every few weeks. Proposed for growth plate modulation but not trialed in adolescents.

Vosoritide – a C‑type natriuretic peptide analog that activates guanylate cyclase and inhibits the MAPK pathway downstream of FGFR3. Approved for achondroplasia; 15 µg/kg/day subcutaneously increases growth velocity by ~1.6 cm/year.
(Ill get into cnp analogs in another thread)
tadalfil can enhance vosoritides effects via pde-5 inhibition which is the enzyme that causes vorsositide to be short acting

Meclozine – an antihistamine found to attenuate FGFR3 signaling in cell models. Doses around 1–2 mg/kg twice daily increased long‑bone length in mice. Safety in adolescents for height is untested.


does anyone know where I can get my hands on these specific ones
or will I have to just buy the raw powder and mix it and take it like creatine

how do you take the raw powder, i know some people mix it with peg400 and put it in a capsule, whats the method

 

[stigmaboy]

@benal22
this is pure ropefuel lol. you're not getting fgfr3 inhibitors. just focus on your existing features.

 

[hayden20]

@benal22
this is pure ropefuel lol. you're not getting fgfr3 inhibitors. just focus on your existing features.

talking about tyra 300 is ropefuel as its pretty much impossible to get your hands on but most other fgfr3 inhibitors are easy to buy