Longer Adalimumab Dosing Intervals Associated with Worse Outcomes for Crohn’s Patients in Remission (LADI Trial)

LMA Van Lierop et al. Gastroenterol 2026; 170: 404-407. Open Access! Long-Term Outcomes of Increased Versus Conventional Adalimumab Dose Interval for Patients With Crohn’s Disease in Stable Remission: 3-Year Follow-Up of the Randomized Controlled LADI Trial

Methods: “The LADI trial enrolled adults with luminal CD in corticosteroid-free clinical (CFCR) and biochemical remission, on adalimumab, 40 mg every 2 weeks. After randomization in a 2:1 ratio, the intervention group started on a 3-week interval and increased to 4 weeks, if in clinical and biochemical remission at week 24. The control group remained on adalimumab biweekly…The primary end point in this long-term follow-up (LTFU) study was the proportion of patients in CFCR (Harvey Bradshaw Index [HBI] <5 or remission per Physician Global Assessment [PGA] without systemic corticosteroids) without complications at year 3, on the assigned adalimumab interval.”

Key findings:

  • The proportion of patients achieving the primary end point was 34 of 95 (35.8%, intervention) vs 41 of 48 (85.4%, control; P < 0.001).
  • At year 3, 39 of 95 (41.1%) in the intervention group remained on the randomized or further de-escalated adalimumab regimen
  • Kaplan-Meier analyses of secondary end points showed the following probabilities at year 3 (intervention vs control) (Figure 1): remaining on the assigned adalimumab dose, 41.4% vs 91.4% (P < .0001); remaining on adalimumab, 83.7% vs 95.8% (P = .026); corticosteroid-free survival, 87.4% vs 95.7% (P = .062); and complication-free survival, 83.2% vs 97.9% (P = .015)
Kaplan-Meier curves visualizing maintenance of assigned dosing at baseline, continued adalimumab therapy, and corticosteroid-free survival in both groups. (A) Probability of maintaining assigned adalimumab dosing interval of 3–4 weeks (intervention) vs 2 weeks (control).
(B) Probability of remaining on adalimumab therapy over time.
(C) Probability of remaining in corticosteroid-free remission.

My take: About 60% of patients were unable to de-escalate their adalimumab dosing interval. Suboptimal dosing increased the risk of complications and having adalimumab therapy become ineffective.

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