BRAF / MEK inhibitors (vemurafenib · dabrafenib · trametinib)
BRAF/MEK inhibitor
Tubulointerstitial AKI; vemurafenib strongest.
Tafinlar · DAB
BRAF inhibitor · approved 2013 · 9 citations · FAERS AKI reporting ROR 1.50 (95% CI 1.32–1.72, 228 AKI reports)
Describes how this page is sourced, not how dangerous the drug is. Thinly sourced means fewer of the sourcing signals are met — not that the agent is kidney-safe. A rule-based summary, not a formal certainty appraisal.
The gentler BRAF inhibitor — mostly pyrexia-driven, reversible AKI, with granulomatous interstitial nephritis as its rare histologic signature.
Signature lesion
AKI is relatively common on dabrafenib-based therapy but usually mild and reversible. In the largest cohort, 42/199 (21%) of patients on dabrafenib/trametinib developed AKI within 12 months, and roughly 24% of those episodes occurred during the drug-induced febrile (pyrexia) syndrome (Seethapathy 2022). Pharmacovigilance places dabrafenib well below vemurafenib: FAERS acute-kidney-injury reporting-odds-ratio approximately 1.35 (95% CI 1.15–1.60) for dabrafenib versus approximately 3.28 for vemurafenib (Sanagawa 2021). Biopsy-proven granulomatous/acute interstitial nephritis and clinically significant electrolyte disorders (hyponatremia, hypokalemia, hypophosphatemia) are each individually rare — documented mainly in case reports and small FAERS counts. Registrational trials did not flag renal toxicity; the signal emerged post-marketing.Source: Seethapathy et al., Nephrol Dial Transplant 2022 (PMID 33355659): 42/199 (21%) of dabrafenib/trametinib patients developed AKI within 12 months in a single-center retrospective cohort, with ~24% of AKI episodes occurring during the drug-induced pyrexia/febrile syndrome. This is all-cause AKI on combination therapy and largely mild/reversible; drug-specific granulomatous interstitial nephritis is far rarer.
AKI most often coincides with the dabrafenib/trametinib febrile syndrome (fever, chills, GI symptoms, transaminitis), clustering in the first weeks to months; a single biopsy-proven granulomatous acute interstitial nephritis case is documented. The cited cohort defined AKI within a 12-month window, so it does not establish later onset.
Distilled from: “Forty-two patients (21%) experienced AKI within 12 months; 10 patients (5% of the total cohort, 24% of AKI patients) experienced AKI occurring during a dabrafenib/trametinib-induced febrile syndrome characterized by fever, chills, gastrointestinal symptoms and elevated liver enzymes. One patient had biopsy-proven granulomatous acute interstitial nephritis that resolved with corticosteroids.” · PMID 33355659 (opens PubMed in a new tab)
This agent's kidney lesions ordered by prominence — the #1 signature lesion first, then secondary and rare patterns. Cited incidence is shown where a citable figure exists; otherwise the tier stands qualitatively.
Immune-mediated inflammation of the renal interstitium — the signature kidney injury of checkpoint inhibitors.
Renal hypoperfusion from capillary leak and cytokine storm — IL-2 and CAR-T cytokine release syndrome.
Renal electrolyte derangement — magnesium/potassium/calcium wasting (cisplatin, anti-EGFR antibodies) or retention (FGFR-inhibitor hyperphosphatemia, tumor-lysis hyperkalemia/hyperphosphatemia).
Inappropriate water retention at the collecting duct — high-dose cyclophosphamide.
Direct death of tubular epithelial cells — the dose-limiting lesion of the platinums and zoledronate.
Tap a signature to trace where it strikes the nephron.
Acute Interstitial Nephritis
Immune-mediated inflammation of the renal interstitium — the signature kidney injury of checkpoint inhibitors.
Selective ATP-competitive inhibitor of mutant BRAF V600E/K kinase that shuts down constitutive RAF–MEK–ERK (MAPK) signaling driving BRAF-mutant tumor proliferation. Almost always paired with the MEK inhibitor trametinib to deepen and prolong response and blunt paradoxical MAPK reactivation (fewer cutaneous squamous lesions than single-agent BRAF inhibition).
Class-level context for the major non-renal toxicities of braf inhibitors.
Dermatologic
Rash, HFS, SJS/TEN, vitiligo
Cardiac
Cardiomyopathy, QT, ischemia, myocarditis
Ophthalmic
Keratopathy, uveitis, retinopathy
Vascular
Hypertension, VTE/ATE, bleeding, aneurysm
8 primary references — trials, cohorts, mechanism, and reviews. Single-patient case reports are listed separately below, graded by strength. Citation metadata via PubMed / NLM.
Primary (non–case-report) references per year — a proxy for how actively the agent's renal literature is accruing. Recent years are highlighted. Reflects curation depth, not a systematic bibliometric count.
Single-patient and small-series reports, graded by evidentiary strength — A Strong (biopsy-proven plus a series and/or positive rechallenge), B Moderate, and C Limited (a single clinically-diagnosed case). Strongest first. Grades are inferred automatically from each report's abstract and journal — a heuristic ranking aid, not a formal quality appraisal.
Everything below is FAERS — adverse events someone chose to report, about 20,946 of them for this agent. Nobody counts the patients who were fine, so none of these numbers is an incidence, a risk, or a rate: they describe what gets reported, shaped by a drug's fame, its indication, and who was watching. How these numbers work.
Only significant signals appear (95% CI lower bound above 1) — a phenotype missing here was tested and did not reach significance, except Prerenal / Hemodynamic AKI, Pseudo-AKI, Renal Cysts, Chronic Interstitial Nephropathy — outside the clinician-reviewed MedDRA term map, never queried — and ATN and AIN, queried but biopsy-bound: real cases are filed as generic “acute kidney injury”, so their absence is not a negative. As of 2026-08-21.
What reporting says about this profile's documented lesions
Reported with a death outcome
4,394 of 20,946 reports
Reported with hospitalization
5,837 of 20,946 reports
Reports per year
Yearly FAERS report volume · most recent year is partial.
Bars rank systems by summed reaction-term mentions (a report counts once per term it names) — an ordinal “more vs less reported” cue, not a tally of distinct reports. Renal & urinary first. As of 2026-08-08.
Each recommendation below is this atlas's faithful summary of the source, not a quotation from it — follow the PubMed link for the wording the society published. Summaries may be superseded; consult the current full text and individualize to the patient.
General onco-nephrology references
Where Dabrafenib sits in nephrotoxicity space — each dot is an anti-cancer agent, positioned so neighbors share a kidney-injury phenotype. Its 6 closest are filled and lead to a numbered marker, matching the numbered cards below.
BRAF/MEK inhibitor
Tubulointerstitial AKI; vemurafenib strongest.
Cotellic · MEK inhibitor
Real-world AKI signal with BRAF partners.
Braftovi · BRAF inhibitor
Class tubular signal; usually mild.
Avmapki (co-packaged with defactinib as Avmapki Fakzynja) · RAF/MEK inhibitor
RAF/MEK clamp; CK elevation/rhabdomyolysis and tubular electrolyte wasting.
Zynyz · PD-1 immune checkpoint inhibitor
PD-1 blockade — kidney injury is immune-mediated interstitial nephritis, not direct tubular toxicity.
Zegfrovy · EGFR exon20 TKI
2025 EGFR exon20 TKI; renal magnesium wasting (SIADH-pattern hyponatremia possible).
Nearest agents by kidney-injury phenotype (shared injuries, nephron target, severity, class) — a similarity approximation, not a claim of shared drug identity or mechanism.
Same-class agents ordered by their documented kidney-injury profile — atlas severity, an acute-kidney-injury FAERS signal, and how many injury types each is documented to cause. Agents nearer the top carry the lighter documented renal profile.
A comparison of documented kidney-injury data within one drug class — not a substitution recommendation. Efficacy, indication, and non-renal toxicity differ between these agents and are out of scope here. Educational only, not medical advice.
The leading contributors to Dabrafenib’s clinical kidney literature on PubMed, ranked by a blend of publication volume and citation impact — filtered toward clinical work via the PubMed Humans heading and clinical publication types (trials, cohorts, case reports, guidelines, reviews). Names link to that author’s work on Dabrafenib.
Ranked by publication volume and citation impact (NIH iCite) on this agent’s renal literature — bibliometric context, not an endorsement or a measure of clinical authority.