See What HealthDay Can Do For You
Contact Us

Long-Term Rituximab May Aid in Antibody-Associated Vasculitis

Relapse rates lower versus placebo in granulomatosis with polyangiitis, microscopic polyangiitis

patient and doctor

TUESDAY, June 2, 2020 (HealthDay News) -- For patients with granulomatosis with polyangiitis (GPA) or microscopic polyangiitis (MPA), extended therapy with rituximab is associated with a reduced incidence of antineutrophil cytoplasmic antibody-associated vasculitis (AAV) relapse, according to a study published online June 2 in the Annals of Internal Medicine.

Pierre Charles, M.D., from Cochin Hospital in Paris, and colleagues examined the efficacy of prolonged rituximab therapy for preventing AAV relapses in patients with GPA or MPA who achieved complete remission with an 18-month maintenance regimen. A total of 68 patients with GPA and 29 with MPA were randomly assigned to receive either rituximab (50 patients) or placebo (47 patients) infusions every six months for 18 months.

The researchers found that at month 28, relapse-free survival estimates were 96 and 74 percent in the rituximab and placebo groups, respectively, with a hazard ratio of 7.5. At month 28, major relapse-free survival estimates were 100 versus 87 percent, respectively. At least one serious adverse event occurred in 24 and 30 percent of patients in the rituximab and placebo groups, respectively. There were no deaths in either group.

"The authors make a convincing argument that long-term rituximab should be the standard of care for antineutrophil cytoplasmic antibody-associated vasculitis," write the authors of an accompanying editorial. "However, an unanswered question is, how long should long-term treatment continue in any patient?"

The study was partially funded by Hoffmann La-Roche, which also provided rituximab for the study.

Abstract/Full Text (subscription or payment may be required)
Editorial (subscription or payment may be required)

Physician's Briefing


HealthDay is the world’s largest syndicator of health news and content, and providers of custom health/medical content.

Consumer Health News

A health news feed, reviewing the latest and most topical health stories.

Professional News

A news feed for Health Care Professionals (HCPs), reviewing latest medical research and approvals.