Brooke Adams, PharmD, BCOP, describes the clinical reality of third-line cGVHD: patients with relapsed or refractory disease after steroids, calcineurin inhibitors, and at least 1 approved second-line agent.

Zahra Mahmoudjafari, PharmD, MBA, BCOP, FHOPA, discusses how axatilimab fits into formulary placement and treatment sequencing decisions at her institution, including how the multidisciplinary transplant team aligns on when to initiate therapy and whether clinical scenarios exist in which the conversation might occur earlier than strictly in the third line.

Brook Adams, PharmD, BCOP, explains axatilimab's distinct mechanism targeting the CSF1R pathway on macrophages and monocytes—as opposed to T-cell pathways (ibrutinib) or JAK/STAT signaling (ruxolitinib)—and why this mechanistic differentiation is clinically meaningful when patients have already progressed on other agents.

Zahra Mahmoudjafari, PharmD, BCOP, FHOPA, MBA, translates the CSF1R-targeted mechanism into practical pharmacist workflows: distinct toxicity profiles (periorbital edema, hepatic enzyme elevations), drug interaction review for polypharmacy, and how to communicate the mechanistic rationale to patients and community pharmacy teams.

Brooke Adams, PharmD, BCOP, walks through the axatilimab trial data (AGAVE-201) and belumosudil trial populations, highlighting how differences in study design, patient characteristics, and end points affect pharmacist interpretation and comparability, and what gaps exist in the evidence base for specific organ manifestations.

Zahra Mahmoudjafari, PharmD, BCOP, FHOPA, MBA, discusses how axatilimab performs in actual practice versus what AGAVE-201 predicted, including responses in organ manifestations not well-represented in the trial and how real-world monitoring protocols have evolved based on accumulated clinical experience.

Brooke Adams, PharmD, BCOP, identifies the clinically meaningful adverse effects every pharmacist must monitor—periorbital edema, hepatic enzyme elevations, fatigue—and specifies intervention thresholds (grading, dose modifications, hold criteria) that should trigger escalation conversations with prescribers.

Zahra Mahmoudjafari, PharmD, BCOP, FHOPA, MBA, describes the pharmacist-to-pharmacist handoff workflow when patients with cGVHD transition from the transplant center to outpatient or home infusion settings, including essential documentation elements, baseline assessments, and red-flag symptoms that require immediate clinical contact.

Brooke Adams, PharmD, BCOP, explores how patient narratives on axatilimab inform treatment decisions, moving beyond National Institutes of Health response criteria to functional outcomes—return to work or family activities, reduction in pain or skin discomfort, improved sleep—and how these improvements may exceed what clinical response rates alone predict.

Zahra Mahmoudjafari, PharmD, BCOP, FHOPA, MBA, addresses the tension between objective NIH scoring and subjective patient experience, and how pharmacists can document patient-reported outcomes to support clinical recommendations, particularly when partial responses demonstrate meaningful functional improvement.

Brooke Adams, PharmD, BCOP, walks through the operational mechanics of transitioning cGVHD patients to community settings: coordination touchpoints, common failure points, and 90-day post-transition checkpoints that confirm a successful handoff.

Zahra Mahmoudjafari, PharmD, BCOP, FHOPA, MBA, challenges the assumption that oral agents (belumosudil) are inherently more convenient than intravenous therapy (axatilimab) by highlighting that the intravenous schedule creates structured monitoring touchpoints and that mechanism differences—not route alone—should drive sequencing decisions in heavily pretreated populations.