Cladribine tablets reduce the risk of disability progression and relapse in patients with relapsing multiple sclerosis (MS), the CLARITY clinical trial indicates.
The treatment was also well-tolerated and had a good safety profile, according to a presentation at the Annual Meeting of the American Academy of Neurology (AAN) in Boston, April 22-28.
The Phase 3 CLARITY trial (NCT00213135) investigated the safety and effectiveness of cladribine in 1,326 relapsing-remitting MS (RRMS) patients. The study’s primary measuring stick was the change in the annual rate of relapse (ARR) at 96 weeks. Researchers also wanted to see if the treatment could increase the number of relapse-free patients and could impact the progression of disability.
Cladribine significantly decreased the risk of disease progression and relapse in a subset of 289 patients with high disease activity, trial showed. The risk over six months decreased substantially in 82 percent of those patients, versus 47 percent in the CLARITY population overall, when compared with a placebo, researchers said.
The tablets also reduced the relative risk of ARR in 67 percent of patients with high disease activity, compared with 58 percent in the overall CLARITY population.
“We know that a proportion of patients with MS have a higher risk of relapse and disability progression than the broader population,” Gavin Giovannoni, the trial’s principal researcher, said in a press release. “These data are important since they indicate that patients in the high disease activity subgroup treated with Cladribine Tablets showed a greater response than that seen in the overall CLARITY trial population.”
The analysis included patients who had never received treatment or had been exposed to disease modifying drugs before the trial. Researchers also found that relapse, treatment history and brain scan characteristics can help identify patients who are at higher risk of experiencing relapses or disease progression.
We are sorry that this post was not useful for you!
Let us improve this post!
Tell us how we can improve this post?