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| Gene | FGFR3 |
| Variant | D318N |
| Impact List | missense |
| Protein Effect | gain of function - predicted |
| Gene Variant Descriptions | FGFR3 D318N lies within Ig-like C2-type domain 3 of the Fgfr3 protein (UniProt.org). D318N results in increased signaling in the presence or absence of ligand compared to wild-type Fgfr3 in culture (PMID: 38411226), and therefore, is predicted to lead to a gain of Fgfr3 protein function. |
| Associated Drug Resistance | |
| Category Variants Paths |
FGFR3 mutant FGFR3 act mut FGFR3 D318N |
| Transcript | NM_000142.5 |
| gDNA | chr4:g.1803713G>A |
| cDNA | c.952G>A |
| Protein | p.D318N |
| Source Database | RefSeq |
| Genome Build | GRCh38/hg38 |
| Transcript | gDNA | cDNA | Protein | Source Database | Genome Build |
|---|---|---|---|---|---|
| NM_001354809.2 | chr4:g.1803713G>A | c.952G>A | p.D318N | RefSeq | GRCh38/hg38 |
| XM_047449823.1 | chr4:g.1803713G>A | c.952G>A | p.D318N | RefSeq | GRCh38/hg38 |
| XM_011513420.2 | chr4:g.1803713G>A | c.952G>A | p.D318N | RefSeq | GRCh38/hg38 |
| NM_000142.5 | chr4:g.1803713G>A | c.952G>A | p.D318N | RefSeq | GRCh38/hg38 |
| XM_011513422.2 | chr4:g.1803713G>A | c.952G>A | p.D318N | RefSeq | GRCh38/hg38 |
| XM_047449824.1 | chr4:g.1803713G>A | c.952G>A | p.D318N | RefSeq | GRCh38/hg38 |
| XM_006713873.2 | chr4:g.1803713G>A | c.952G>A | p.D318N | RefSeq | GRCh38/hg38 |
| NM_001354810.2 | chr4:g.1803713G>A | c.952G>A | p.D318N | RefSeq | GRCh38/hg38 |
| XM_047449822.1 | chr4:g.1803713G>A | c.952G>A | p.D318N | RefSeq | GRCh38/hg38 |
| Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
|---|---|---|---|---|---|---|---|
| FGFR3 act mut | Advanced Solid Tumor | decreased response | Cediranib | Preclinical | Actionable | In a preclinical study, transformed cells expressing constitutively active FGFR3 demonstrated reduced sensitivity to inhibition of receptor phosphorylation and cell proliferation by Cediranib (AZD-2171) in culture, when compared to other tyrosine kinase inhibitors (PMID: 22238366). | 22238366 |
| FGFR3 act mut | transitional cell carcinoma | no benefit | Atezolizumab + Derazantinib | Phase Ib/II | Actionable | In a Phase I/II trial (FIDES-02), combination treatment with Derazantinib (ARQ 087) and Tecentriq (atezolizumab) was well tolerated but demonstrated limited efficacy in patients with urothelial carcinoma harboring FGFR3 mutations (n=8) or FGFR3 fusions (n=2), with an objective response rate (ORR) of 0% (0/10) and disease control rate of 20.0% (2/10) by independent central review (PMID: 38627238; NCT04045613). | 38627238 |
| FGFR3 act mut | Advanced Solid Tumor | sensitive | Dovitinib | Preclinical | Actionable | In a preclinical study, Dovitinib (TKI258) inhibited receptor phosphorylation and cell proliferation in transformed cells expressing constitutively active FGFR3 in culture (PMID: 22238366). | 22238366 |
| FGFR3 act mut | Advanced Solid Tumor | decreased response | Nintedanib | Preclinical | Actionable | In a preclinical study, transformed cells expressing constitutively active FGFR3 demonstrated reduced sensitivity to Ofev (Nintedanib) in culture, when compared to other tyrosine kinase inhibitors (PMID: 22238366). | 22238366 |
| FGFR3 act mut | Advanced Solid Tumor | no benefit | Brivanib | Preclinical | Actionable | In a preclinical study, Brivanib (BMS-540215) did not inhibit receptor phosphorylation and cell proliferation in transformed cells expressing constitutively active FGFR3 in culture (PMID: 22238366). | 22238366 |
| FGFR3 act mut | Advanced Solid Tumor | predicted - sensitive | Erdafitinib | Phase II | Actionable | In a Phase II trial (RAGNAR), Balversa (erdafitinib) treatment resulted in an objective response rate of 29.5% (64/217, 6 complete and 58 partial responses), a disease control rate of 74%, clinical benefit rate of 46%, a median duration of response of 6.9 months, median progression-free survival of 4.2 months, and median overall survival of 10.7 months in patients with advanced solid tumors harboring FGFR1, FGFR2, or FGFR3 mutations or fusions (PMID: 37541273; NCT04083976). | 37541273 |
| FGFR3 act mut | Advanced Solid Tumor | predicted - sensitive | Erdafitinib | Phase I | Actionable | In a Phase I trial, Balversa (erdafitinib) treatment resulted in stable disease in 70% (16/23) and partial response in 22% (5/23) of patients with advanced solid tumors harboring FGFR 1-4 activating mutations (including amplifications, mutations and translocations), while no antitumor activity was observed in patients with unknown or no known changes in FGFR (PMID: 26324363; NCT01703481). | 26324363 |
| FGFR3 act mut | transitional cell carcinoma | no benefit | Derazantinib | Phase Ib/II | Actionable | In a Phase I/II trial (FIDES-02), Derazantinib (ARQ 087) treatment was well tolerated but demonstrated limited efficacy in patients with urothelial carcinoma harboring FGFR1 (n=4), FGFR2 (n=7), or FGFR3 (n=35) mutations or FGFR3 fusions (n=6), with an objective response rate of 8.2% (4/49, all partial responses) and disease control rate of 30.6% (15/49) by independent central review (PMID: 38627238; NCT04045613). | 38627238 |
| FGFR3 act mut | bladder urothelial carcinoma | sensitive | Erdafitinib | Guideline | Actionable | Balversa (erdafitinib) is included in guidelines as second-line or subsequent-line therapy for patients with advanced or metastatic urothelial carcinoma harboring susceptible FGFR3 alterations (NCCN.org). | detail... |
| FGFR3 act mut | Advanced Solid Tumor | predicted - sensitive | Fexagratinib | Phase II | Actionable | In a Phase II (MATCH) trial, AZD4547 treatment resulted in an overall response rate of 10.5% (2/19) in patients with advanced solid tumors harboring FGFR2 or 3 activating single nucleotide variants and a 6-month progression-free survival rate of 6%, with a partial response in 1 and stable disease in 2 of 7 patients with FGFR3 activating mutations (PMID: 32463741; NCT02465060). | 32463741 |
| FGFR3 act mut | Advanced Solid Tumor | sensitive | Zoligratinib | Phase I | Actionable | In a Phase I trial, Debio 1347 (CH5183284) dosing regimen has been determined in solid tumor patients with activating FGFR3 alterations (JCO, Vol 33, No 15_suppl (May 20 Supplement), 2015: 2540). | detail... |
| FGFR3 act mut | transitional cell carcinoma | sensitive | Pemigatinib | Phase II | Actionable | In a Phase II trial (FIGHT-201), Pemazyre (pemigatinib) treatment resulted in an objective response rate (ORR) of 17.8%, median duration of response (mDOR) of 6.2 mo, median progression-free survival (mPFS) of 4.0 mo, and median overall survival (mOS) of 6.8 mo with continuous dosing, and an ORR of 23.3%, mDOR of 6.2 mo, mPFS of 4.3 mo, and mOS of 8.9 mo with intermittent dosing in patients with urothelial carcinoma harboring FGFR3 mutations or fusions/rearrangements (PMID: 37956738; NCT02872714). | 37956738 |
| FGFR3 act mut | Advanced Solid Tumor | sensitive | Ponatinib | Preclinical | Actionable | In a preclinical study, Iclusig (ponatinib) inhibited receptor phosphorylation and cell growth in transformed cells expressing constitutively active FGFR3 in culture (PMID: 22238366). | 22238366 |
| FGFR3 act mut | urinary bladder cancer | predicted - sensitive | S-49076 | Preclinical | Actionable | In a preclinical study, S-49076 inhibited autophosphorylation of FGFR3 and downstream signaling in bladder cancer cells over expressing constitutively active FGFR3 in culture (PMID: 23804704). | 23804704 |
| FGFR3 act mut | transitional cell carcinoma | sensitive | Erdafitinib | Guideline | Actionable | Balversa (erdafitinib) is included in guidelines as second-line or subsequent-line therapy for patients with advanced or metastatic urothelial carcinoma harboring susceptible FGFR3 alterations (NCCN.org). | detail... |
| FGFR3 act mut | Advanced Solid Tumor | predicted - sensitive | KIN-3248 | Phase I | Actionable | In a Phase I trial, KIN-3248 treatment demonstrated safety and preliminary activity in patients with advanced solid tumors harboring alterations in FGFR2 or FGFR3, resulting in an objective response rate of 9.25% (5/54, 5 partial responses) and disease control rate of 46% (25/54), with stable disease in 20 patients (PMID: 38602417; NCT05242822). | 38602417 |
| FGFR3 mutant | transitional cell carcinoma | no benefit | Nivolumab | Phase II | Actionable | In a Phase II trial (CheckMate 275), Opdivo (nivolumab) (n=270) treatment resulted in similar response rate (20% vs 21%, p=0.2) in patients with FGFR3 mutant or wild-type metastatic transitional cell carcinoma (PMID: 31272788). | 31272788 |
| FGFR3 mutant | transitional cell carcinoma | sensitive | Erdafitinib | Case Reports/Case Series | Actionable | In a Phase I trial, Balversa (erdafitinib) treatment resulted in 25% tumor shrinkage at week 8 in an urothelial cancer patient harboring FGFR3 mutations (PMID: 26324363; NCT01703481). | 26324363 |
| FGFR3 mutant | transitional cell carcinoma | sensitive | Erdafitinib | Phase I | Actionable | In a Phase I trial, Balversa (erdafitinib) treatment resulted in an objective response rate of 46% (12/26) in patients with urothelial carcinoma harboring FGFR genomic alterations, including 17 with FGFR3 mutations, and 11 with FGFR2 and/or FGFR3 fusions (PMID: 31088831; NCT01703481). | 31088831 |
| FGFR3 mutant | transitional cell carcinoma | sensitive | Erdafitinib | FDA approved - Has Companion Diagnostic | Actionable | In a Phase II trial (BCL2001) that supported FDA approval, Balversa (erdafitinib) treatment resulted in an objective response rate of 40% (40/99, 3 complete response, 37 partial response) and a disease control rate of 80% in patients with metastatic or unresectable urothelial carcinoma harboring FGFR alterations (PMID: 31340094; NCT02365597). | detail... 31340094 detail... |
| FGFR3 mutant | cholangiocarcinoma | predicted - sensitive | Erdafitinib | Phase I | Actionable | In a Phase I trial, Balversa (erdafitinib) treatment resulted in an objective response rate of 27% (3/11) in patients with cholangiocarcinoma harboring FGFR genomic alterations, including 1 with FGFR2 mutation, 2 with FGFR3 mutations, and 8 with FGFR2 fusions (PMID: 31088831; NCT01703481). | 31088831 |
| FGFR3 mutant | transitional cell carcinoma | sensitive | Infigratinib | Phase I | Actionable | In a Phase I trial, Truseltiq (infigratinib) treatment resulted in complete response in 4% (1/25) and partial response in 32% (8/25) of urothelial carcinoma patients harboring FGFR3 mutations or fusions (J Clin Oncol 34, 2016 (suppl; abstr 4517); NCT01004224). | detail... |
| FGFR3 mutant | transitional cell carcinoma | sensitive | Infigratinib | Clinical Study | Actionable | In a clinical study, Truseltiq (infigratinib) treatment in patients with FGFR3 alterations led to 25.4% (17/67) confirmed responses and a disease control rate of 64% (43/67), which included complete responses, partial responses, and stable disease, and resulted in a median progression-free survival of 3.75 months and a median overall survival of 7.75 months (PMID: 29848605). | 29848605 |
| FGFR3 mutant | transitional cell carcinoma | no benefit | Atezolizumab | Phase II | Actionable | In a Phase II trial (IMVigor 210, CheckMate 275), Tecentriq (atezolizumab) (n=119) treatment resulted in similar response rate (24% vs 21%, p=0.8) in patients with FGFR3 mutant or wild-type metastatic transitional cell carcinoma (PMID: 31272788). | 31272788 |
| FGFR3 mutant | bladder urothelial carcinoma | sensitive | Infigratinib | Phase I | Actionable | In a Phase I trial, patients with bladder urothelial carcinoma harboring an FGFR3 mutation demonstrated a disease control rate of 75% (6/8) when treated with Truseltiq (infigratinib), including 3 patients with a partial response and 3 with stable disease (PMID: 27870574; NCT01004224). | 27870574 |
| FGFR3 mutant | transitional cell carcinoma | predicted - sensitive | Cetrelimab + Erdafitinib | Phase II | Actionable | In a Phase II trial, the combination of Balversa (erdafitinib) and Cetrelimab (JNJ-63723283) treatment resulted in an overall response rate of 54.5% (6 complete responses), disease control rate of 79.5%, median duration of response of 11.10 months, median progression-free survival of 10.97 months, and a 12-month overall survival of 68% in patients with metastatic urothelial carcinoma harboring FGFR mutations (J Clin Oncol 41, 2023 (suppl 16; abstr 4504); NCT03473743). | detail... |
| FGFR3 mutant | urinary bladder cancer | sensitive | Fexagratinib | Preclinical - Cell culture | Actionable | In a preclinical study, AZD4547 inhibited survival of bladder cancer cells harboring FGFR3 mutation in culture (PMID: 27550940). | 27550940 |
| FGFR3 mutant | transitional cell carcinoma | predicted - sensitive | Docetaxel + Vofatamab | Phase Ib/II | Actionable | In a Phase I/II trial, Vofatamab (B-701) in combination with Taxotere (docetaxel) demonstrated safety and preliminary efficacy, resulted in enhanced activity in patients with locally advanced or metastatic urothelial carcinoma harboring FGFR3 mutations or fusions comparing to wild-type patients (Journal of Clinical Oncology 36, no. 15_suppl (May 20 2018) 4534-4534; NCT02401542). | detail... |
| FGFR3 mutant | Advanced Solid Tumor | sensitive | Infigratinib | Preclinical | Actionable | In a preclinical study, tumor cell lines with FGFR3 mutations demonstrated sensitivity to Truseltiq (infigratinib) in culture (PMID: 23002168). | 23002168 |
| FGFR3 mutant | Advanced Solid Tumor | predicted - sensitive | Erdafitinib | Case Reports/Case Series | Actionable | In a Phase II trial (MATCH), Balversa (erdafitinib) treatment resulted in an objective response rate of 16% (4/25), median progression-free survival of 3.6 months, and median overall survival of 11.0 months in patients with advanced solid tumors harboring FGFR1, FGFR2, or FGFR3 mutations or fusions (PMID: 38603650; NCT02465060). | 38603650 |
| FGFR3 mutant | Advanced Solid Tumor | sensitive | Pemigatinib | Preclinical - Cell line xenograft | Actionable | In a preclinical study, a variety of cancer cell lines harboring mutations in FGFR1, FGFR2, and/or FGFR3 demonstrated sensitivity to Pemazyre (pemigatinib) in culture and in cell line xenograft models, resulting in inhibition of tumor growth (Cancer Res 2015;75(15 Suppl):Abstract nr 771). | detail... |
| FGFR3 mutant | bladder urothelial carcinoma | sensitive | Dovitinib | Phase II | Actionable | In a Phase II trial, Dovitinib (TKI258) treatment resulted in complete response in 33% (1/3) of patients with BCG-unresponsive, non-muscle-invasive, urothelial carcinoma of the bladder harboring FGFR3 mutations (PMID: 27932416). | 27932416 |
| FGFR3 mutant | Advanced Solid Tumor | predicted - sensitive | ICP-192 | Phase I | Actionable | In a Phase I trial, ICP-192 (gunagratinib) was well-tolerated, and resulted in an overall response rate or 33.3% (4/12, 1 complete response, 3 partial response) and a disease control rate of 91.7% (11/12) in patients with advanced solid tumors harboring FGF/FGFR gene aberrations (J Clin Oncol 39, 2021 (suppl 15; abstr 4092); NCT03758664). | detail... |
| FGFR3 mutant | bladder urothelial carcinoma | sensitive | Erdafitinib | FDA approved - Has Companion Diagnostic | Actionable | In a Phase II trial (BCL2001) that supported FDA approval, Balversa (erdafitinib) treatment resulted in an objective response rate of 40% (40/99, 3 complete response, 37 partial response) and a disease control rate of 80% in patients with metastatic or unresectable urothelial carcinoma harboring FGFR alterations (PMID: 31340094; NCT02365597). | detail... 31340094 detail... |
| FGFR3 mutant | Advanced Solid Tumor | predicted - sensitive | Zoligratinib | Phase I | Actionable | In a Phase I trial, Debio 1347 treatment resulted in partial response in 10.5% (6/57) and stable disease in 28.1% (16/57) of patients with advanced solid tumors harboring genomic alterations of FGFR1/2/3, including amplifications, fusions, and mutations (PMID: 30745300; NCT01948297). | 30745300 |