ARAF A-Raf proto-oncogene, serine/threonine kinase
ENSG00000078061 · protein coding · Open Targets profile
Involved in the transduction of mitogenic signals from the cell membrane to the nucleus. May also regulate the TOR signaling cascade. Phosphorylates PFKFB2 (PubMed:36402789). .
Each band is a group of drugs. It runs from the kind of drug on the left to the furthest stage that drug has reached in any disease on the right. Thicker bands mean more drugs.
Approved bands are highlighted. Withdrawn means the drug was pulled from the market or from development. A combined phase counts as the later one (Phase 1/2 is shown as Phase 2). Hover a band for the drug names. Source: Open Targets Platform, fetched live.
Each row is a cancer, strongest overall evidence first. The two dots show how strong the inherited (germline) and tumour-mutation (somatic) evidence is; the line between them is the gap.
Scores run from 0 (no evidence) to 1 (strongest). A missing dot at 0 means Open Targets holds no evidence of that kind. Source: Open Targets Platform, fetched live.
Tractability
- Small molecule
- Advanced Clinical, Structure with Ligand, High-Quality Ligand, Druggable Family
- Antibody
- Human Protein Atlas loc
- PROTAC
- Database Ubiquitination, Half-life Data, Small Molecule Binder
gnomAD loss of function constraint: o/e 0.37474000453948975 (upper bound 0.5556899905204773). Low values mean loss of function is poorly tolerated, a safety flag for inhibition.
Who runs trials of these drugs
Principal investigators and study chairs on 17 registry trials, updated in the last three years, of the most advanced drugs against ARAF (tovorafenib, belvarafenib), ranked by Phase 2+ trials. Live from ClinicalTrials.gov.
- Carl E AllenChildren's Oncology Group · 1 of 1 trials Phase 2+
- Cassie KlineChildren's Hospital of Philadelphia · 1 of 1 trials Phase 2+
- Seema A BhatOhio State University Comprehensive Cancer Center LAO · 1 of 1 trials Phase 2+
Registry trials of tovorafenib, belvarafenib updated in the last three years, counted by the country group of their listed sites. A trial with sites in several groups counts in each; 7 of 15 have all sites in one country.
Site counts are not patients per country, and trials registered only outside ClinicalTrials.gov are not covered. Where sites are is a fact about the record, not a judgement of its quality. Europe is the EU and EEA, the UK and Switzerland. 2 trials list no sites and are left out. Source: ClinicalTrials.gov, fetched live.
4 trials of drugs against ARAF were stopped early
Terminated, withdrawn and suspended interventional trials of tovorafenib, belvarafenib, LY-3009120, newest update first, live from ClinicalTrials.gov. Each reason is quoted exactly as the registry gives it; we do not sort reasons into safety, efficacy or business. Dates are the last registry update. Showing the 4 most recent of 4.
- terminated · 2025-10-02 · Day One Biopharmaceuticals, Inc. · Tovorafenib“Sponsor decision”
- terminated · 2025-08-14 · Day One Biopharmaceuticals, Inc. · Tovorafenib, Tovorafenib Drug: Pimasertib“Sponsor decision”
- terminated · 2024-03-05 · Millennium Pharmaceuticals, Inc. · matched by the registry's drug synonyms“Business decision: Protocol efficacy futility met”
- terminated · 2019-12-27 · Eli Lilly and Company · matched by the registry's drug synonyms“This trial was terminated early based on the lack of sufficient clinical efficacy observed.”
Paediatric incentives and obligations for ARAF's drugs
For tovorafenib, belvarafenib, LY-3009120: what EMA and FDA publish about paediatric plans, orphan status and pediatric approvals, and how many registered studies take children. Each line is a yes, no or not published fact from the record linked under it; none of it is a forecast.
- FDA pediatric target list: no · ARAF is not on the listRule: Target is on FDA's Pediatric Molecular Target List (relevant targets). Source: FDA Pediatric Molecular Target List (Listed as February 2026 on the FDA Pediatric Oncology page; the file served is 9.7.22_the_relevant_molecular_target_list.xlsx, whose Summary of Changes sheet is headed 'SEPTEMBER 2022 UPDATE' (footnote date 2022-09-01)), 2026-11-11
- EU paediatric investigation plan: yes · EMEA-002763-PIP01-20-M01 (tovorafenib, Treatment of paediatric low grade glioma): PM: decision on the application for modification of an agreed PIP, 27 Oct 2023Rule: An EMA PIP decision (agreement, modification or waiver) lists the drug as its active substance, exact name. Source: EMA EMEA-002763-PIP01-20-M01, 2026-11-11
- EU orphan designation: yes · EU/3/21/2434 positive 20 May 2021: Treatment of gliomaRule: An EU orphan designation lists the drug as its active substance (exact name) or belongs to a medicine that does; withdrawn and expired designations are listed with their status. Source: EMA EU/3/21/2434, 2026-11-11
- Authorised in the EU: yes · Ojemda: authorised since 20 Apr 2026, orphan medicine, conditionalRule: An EMA medicine record lists the drug as its active substance or INN, exact name; national-only authorisations are not in this file. Source: EMA EPAR Ojemda, 2026-11-11
- FDA orphan designation: not published · FDA's orphan designation database turns away automated requests, so this app does not read it; search it by hand at the linkRule: Would be: an FDA orphan designation names the drug. Source: FDA orphan designations search
- FDA pediatric oncology approval: yes · Tovorafenib [Ojemda], 23 Apr 2024: Treatment of patients 6 months of age and older with relapsed or refractory pediatric low-grade glioma (LGG) harboring a BRAF fusion or rearrangement, or BRAF V600 mutationRule: FDA's Pediatric Oncology Drug Approvals table names the drug. Source: FDA Pediatric Oncology Drug Approvals (content current as of 2026-03-03), 2026-11-12
- Registered studies open to children: yes · 11 interventional studies of tovorafenib, belvarafenib, ly-3009120 include patients under 18; 8 are recruiting, not yet recruiting or activeRule: The registry's age group includes Child (birth to 17 years), which also counts studies that set no minimum age. Source: ClinicalTrials.gov search, 2026-11-12
Rare pediatric disease voucher. FDA, content current as of 29 Apr 2026: “As of February 3, 2026, enactment of the Consolidated Appropriations Act, 2026, the rare pediatric disease PRV program will sunset after September 30, 2029. FDA may not award any PRVs under this program after September 30, 2029.” Voucher sale prices are not shown here; they appear only as company-reported news. FDA: Rare Pediatric Disease Designation and Priority Review Voucher Programs
All 3 drugs and clinical candidates as a table
Each drug, stage and indication links to its Open Targets record, where the trials and approvals behind it are listed. Salt forms (for example a mesylate) are listed as Open Targets records them, as separate entries.
| Drug | Type | Highest stage | Indications | Source records |
|---|---|---|---|---|
| TOVORAFENIB | Small molecule | approval | glioma, low grade glioma, melanoma, neoplasm, craniopharyngioma, Langerhans cell histiocytosis, diffuse intrinsic pontine glioma, malignant glioma, +1 more | Open Targets · ChEMBL |
| BELVARAFENIB | Small molecule | phase 2 | central nervous system neoplasm, central nervous system cancer, melanoma | Open Targets · ChEMBL |
| LY-3009120 | Small molecule | phase 1 | cancer | Open Targets · ChEMBL |