Mavenclad

Cladribine Added to Interferon-beta Seen to Lower Relapses in Active MS, But Safety Questioned

Cladribine tablets added to interferon-beta treatment significantly reduced the probability of relapses over 96 weeks in people with active relapsing multiple sclerosis , a Phase 2 clinical trial found. But a troubling diminishment in key immune cells was also seen in treated patients. Relapsing-remitting MS is marked by periods of flares caused by inflammatory attacks, followed by periods of partial or complete recovery . A majority --about 65 percent -- go on to developĀ secondary progressive MS. Despite the growing number of treatment options ā€” including disease-modifying therapies ā€” for these MS patients, efforts continue into better ways to lower relapse frequency and slow disease progression. Researchers tested the safety and efficacy of cladribine tablets as an add-on therapy in patients continuing to experience active relapses while under interferon-betaĀ treatment. Cladribine is an oral medication that works by selectively targeting and reducing the number of immune cells involved in the inflammatory attacks occurring in active MS. It wasĀ developed byĀ EMD Serono (Merck KGaA outside the U.S. and Canada) and approved in the European Union using theĀ brand name MavencladĀ (it is not approved in the U.S. for MS). Interferon-beta works by balancing pro- and anti-inflammatory signals, reducing the number of immune cells and promoting the survival of nerve cells. Interferon-beta therapies are marketed under several brand names; in the study, researchers analyzed patients usingĀ Rebif (marketed by EMD Serono), Avonex (byĀ Biogen), and Betaseron/Betaferon (byĀ Bayer). The 96-week, randomized, double-blind, Phase 2b trial called ONWARD enrolled a total of 172 patients with active relapsing MS, who were randomly divided into two groups: those given cladribine tablets together with interferon-beta, and those that received a placebo and interferon-beta. Results showed those taking cladribine tablets together with interferon-beta had 63% lower likelihood of a relapse compared to those given an add-on placebo. Add-on cladribine treatment also reduced most measures of disease activity as assessed by magnetic resonance imaging (MRI) ā€” namely, the number of new brain and spinal cord lesions. However, almost half of patients in this treatment group developed lymphopenia, a conditionĀ where the levels of lymphocytes (important immune white blood cells) in the blood are abnormally low. None in the control group developed the condition. Other reported side effects, including other serious adverse side effects, were identical in the two groups. Altogether, the findings indicate that a cladribine and interferon-beta combination can successfully lower the probability of relapses over the course of 96 weeks, but also increase a person's chances of lymphopenia.

Progressive MS Patients with Considerable Disability Ably Treated with Cladribine, UK Case Study Reports

Cladridine may be effective in preventingĀ disability progression and reducing damage to nerve cells in people withĀ progressive forms of multiple sclerosis (MS), researchers suggest based on a case study of two such patients given the injectable treatment. MS is characterized by progressive degeneration of cells in the central nervous system, mostly…

#EAN2018 – MavencladĀ Greatly Reduces Risk of RRMS Relapse, Analysis Finds

New retrospective analysis of the Phase 3 CLARITY study (NCT00213135)Ā shows that treatment with MavencladĀ (cladribine tablets) improved annualized relapse rate and magnetic resonance imaging (MRI) outcomes in patients with relapsing-remitting multiple sclerosis (RRMS), regardless of their age. Moreover, the effectiveness of Mavenclad was comparable to five standard therapies…

#AAN2018 – CladribineĀ Injections Deplete Number of Memory B-cells in RRMS, Study Shows

CladribineĀ treatment leads to a selective depletion of memory B-cells in patients with relapsing-remittingĀ multiple sclerosisĀ (RRMS), researchers report. The results are in the presentation ā€œCladribine for the Effective Control of Multiple Sclerosis via Memory B Cell Depletionā€ being given Friday, the final day of the 2018 Annual MeetingĀ of theĀ …

Argentina Approves Mavenclad for Active Relapsing MS

Argentina has become the first country in Latin America to approve MavencladĀ (cladribine) as a treatment for adults with highly active relapsing multiple sclerosis. The Argentinian Administration of Medicines, Food and Medical Technology's approval coveredĀ Merckā€™s cladribine tablet formulation. Merck expects to make the treatment available in the country in the next few months. Mavenclad has already been approved in Canada, Australia, Israel, and Europe. Merck is seeking approval in the United States and other countries. "Having a new MS treatment approved in Argentina is very motivating," Dr. Jorge Correale of the Institute for Neurological Research Dr. RaĆŗl Carrea said in a press release. "Mavenclad allows the patient's immune system to go through a selective immune reconstitution, similar to a reset, and the treatment mechanism is simple because it does not require frequent administration or monitoring," said Correale,Ā head of the institute's neuroimmunology and demyelinating diseases department. Mavenclad is designed to target the immune T- and B-cells that trigger relapsing MSĀ without suppressing the entire immune system. With a maximum of 20 days' treatment over two years, the oral drug promotes long-term inhibition of harmful immune cells, reconstituting the immune system. MS is an autoimmune disease, or one in which the immune system attacks normal tissue as well as invadors. Argentine regulators based their approval on the results of five clinical trials. These were the Phase 3 CLARITY, CLARITY EXTENSION, and ORACLE-MS studies, the Phase 2 ONWARD study, and the long-term PREMIERE study. These trials involved more than 2,700Ā patients with relapsing MS, some of whom researchers followed for more than 10 years. The trials showed that Mavenclad can significantly reduce MS relapse rates, disability progression and brain atrophy. The treatment is recommended for patients who fail to respond adequately, or are unable to tolerate, other therapies. "We are pleased the Argentinian Administration of Medicines, Food and Medical Technology has approved Mavenclad," said Rehan Verjee, the chief marketing and strategy officer of Merck's biopharma business. "Our goal is to ensure fast access to patients who may benefit from this innovative therapy, and we will be working with payers on obtaining reimbursement as a next step."

Australia Approves Shorter Mavenclad Treatment Regimen for Relapsing-Remitting MS

Australia has approved a shorter treatment regimen ofĀ Merckā€™sĀ MavencladĀ for relapsing-remitting multiple sclerosis. The Therapeutic Goods Administration authorized 20-day courses of the cladribine tablet form of the medication once a year for two years. The regimen reduces relapse rates and the progression of the disease for up to four years, Merck said. The new approval came after Merck submitted additional clinical trial findings on theĀ therapy. Health CanadaĀ andĀ the European CommissionĀ approved Mavenclad earlier this year. Merck continues to seek its regulatory approval in the United States and other countries. "Mavenclad will be a welcomed treatment option for patients with the relapsing-remitting form of MS,ā€ Bill Carroll, clinical professor of neurology at the University of Western Australia and the Perron Institute, said in a press release. ā€œAs an oral therapy taken in two short courses over a two-year period, Mavenclad will be convenient for all eligible patients in Australia, including those who may not live close to their treating healthcare professional," added Carrol, a neurology consultant at the Sir Charles Gairdner Hospital as well as president-elect of the World Federation of Neurology. Mavenclad targetsĀ immune cells that trigger relapsing MS.Ā Multiple sclerosis is an autoimmune disease, or one in which the immune system attacks healthy cells. Mavenclad inhibitsĀ harmful immune T- and B-cells without suppressing the entire immune system. Australia based its approval of the drug on the findings of a number of clinical trials, including the Phase 3 CLARITY, CLARITY EXTENSION and ORACLE-MSĀ studies, the Phase 2 trial ONWARD study, and the long-term PREMIERE studies. The trials involved more than 2,700 RRMS patients, some of whom were followed more than 10 years. The trials showed that Mavenclad can significantly reduce relapse rates, disability progressionĀ and brain atrophy. Doctors recommended the therapy for patients who failed to respond to, or are unable to tolerate, other MS treatments. "We are pleased the Therapeutic Goods Administration has updated the product Information for Mavenclad in Australia to reflect additional clinical data," said Simon Sturge, chief operating officer of Merck's biopharma business. "Our next step is to work closely with the Australian government to bring this treatment advance to patients as quickly as possible."

Health Canada Approves Merck’s Mavenclad to Treat RRMS

Canadians with relapsing-remitting multiple sclerosis can now receiveĀ Merckā€™s Mavenclad, now thatĀ Health CanadaĀ has approved Mavenclad as a therapy to reduce the frequency of MS exacerbations and delay disease progression. Merck expects the drug to be commercially available by early January 2018 throughout Canada, which has the world's highest MS rate. This follows the drugā€™s approval by the European Commission in August, making Mavenclad Europe's first approved highly efficient, oral short-course therapy for relapsing MS. Merck said it would seek regulatory approval of Mavenclad in other countries, including the United States. Mavenclad was designed to selectively target immune cells that trigger relapsing MS, while resetting the immune system. With two annual courses of treatment for a maximum of 20 days over two years, the oral drug promotesĀ long-term inhibition of harmful immune T- and B-cells, without continuous suppression of the immune system. Researchers evaluated Mavenclad in five clinical trials: Phase 3 trials CLARITY, CLARITY EXTENSION and ORACLE-MS; the Phase 2 trial ONWARD study ; and the long-term study PREMIERE. These involved more than 2,700 RRMS patients, some of whom were observed for more than 10 years. Clinical data showed that Mavenclad can significantly reduce disability progression, annualized relapse ratesĀ and brain atrophy. The treatment is generally recommended for patients who failed to respond adequately, or are unable to tolerate, one or more MS therapies.

European Neurologists Ready to Use Both Mavenclad and Ocrevus, Survey Shows

Mavenclad has become the multiple sclerosis therapy of choice for one in five neurologists in Germany and the United Kingdom,Ā according to a Spherix Global InsightsĀ survey. Meanwhile, many European neurologists are looking forward to the continent's approval of Ocrevus, particularly as a treatment for primary progressive multiple sclerosis, or PPMS. The United States approved the therapy in March of 2017. European neurologists are using Mavenclad for both relapsing-remitting multiple sclerosis, or RRMS, and secondary progressive multiple sclerosis, SPMS. The report that Spherix issued on European neurologists' treatment choices is calledĀ "RealTime Dynamix: Multiple Sclerosis EU."Ā It was based on a survey of 261 neurologists, who were asked about thei disease-modifying drugs they prescribed and the way they manage MS, according toĀ a press release. The survey focused on Merck KGaAā€™s Mavenclad, whichĀ the European Union approved in August 2017, and Genentechā€™s Ocrevus, which the European Commission is expected to approve soon. The European Medicines Agency paved the way for approval byĀ recommending its authorization earlier this month. Mavenclad is the first disease-modifying therapy that most of the patients who are on it have tried, according to the survey. Spherix analysts said this indicates that Mavenclad may expand the proportion of MS patients using disease-modifying drugs. But while Mavencladā€™s label allows patients to use it as a first-line therapy, the survey revealed that many neurologists are not comfortable prescribing it as an initial treatment. This suggests that the Mavenclad-treated population may later include more patients who switched treatments, Spherix said. Mavenclad reduces MS relapses by resetting the immune system, studies have shown. Neurologists who prescribe it as a first-line treatment appear to endorse the idea of induction therapy. This approach involves more potent therapies being used from the onset of the disease.Ā British neurologists in particular appear to favor the induction approach, the report revealed. Patients who had been on previous treatments have switched mainly from Copaxone (glatiramer acetate), interferons, or Novartis' Gilenya, the report showed. Many neurologists' lack of familiarity with Mavenclad may be limiting its use, the report said. It noted that two out of five neurologists had not received a detailed briefing on the drug, and more than one-third had not attended any launch activities. Limited market access was the second most common obstacle to Mavenclad prescription, the report indicated. Interestingly, those who had participated in Mavenclad launch activities said these consisted mostly of independent research or discussions with colleagues, rather than activities organized by Mavencladā€™s developer Merck KGaA. Spherixā€™s survey was done just before the European Medicines Agency recommended Ocrevus' approval in mid-November. Even before the endorsement, the survey indicated, Ocrevus was by far the MS drug in development that most neurologists looked forward to using. The reasons, the neurologists said, were its beneficial effectiveness-safety profile, its new mechanism of action, the fact that it only needs to be given once every six months, and a treatment label that includes PPMS. It is the first disease-modifying drug ever approved for PPMS patients. Twice as many neurologists said they look forward to using Ocrevus as a first-line treatment for PPMS as those saying they wanted to use it as a first-line treatment for relapsing MS. And neurologists estimated that twice as many PPMS patients as RRMS patients are appropriate candidates for Ocrevus treatment. In a report in October about U.S. neurologists' treatment preferences, Spherix said those doctors estimated the number of PPMS Ocrevus candidates at three times that of RRMS patients. Nonetheless, about equally as many PPMS and RRMS patients had tried Ocrevus four months after its launch, the survey showed. The European situation may evolve in a similar manner, since the European Medicines Agency recommended a specific use of Ocrevus in PPMS patients. It specified that the drug be used in PPMS patients who show ā€œimaging features characteristic of inflammatory activity."Ā This makes it likely that only a subgroup of PPMS patients will receive the treatment. The use of Biogen's Tysabri, Gilenya, and Rituxan (rituximab), also made by Roche'sĀ Genentech subdivision, will be most impacted by Ocrevus' introduction. Despite this, neurologists believe rituximab's use will grow in the next six months, because Ocrevus is still not available, while lower-cost rituximab biosimilars are.

Merck Extension Study Confirms Mavencladā€™s Long-term Benefits in Relapsing MS Patients

Three-fourths of relapsing multiple sclerosis patients who took two short courses of Mavenclad over two years remained relapse-free for four years, according to newly published data from the medication's Phase 3 extension trial. Moreover, patients who took Mavenclad during the first two years and then a placebo for the next two years fared similarly to those who took Mavenclad for the entire four-year period. The European Commission on Aug. 25 approved Mavenclad ā€” developed by Merck KGaA (known as EMD in North America) ā€” to treat relapsing forms of MS in Europe. It based that approval on data from the Phase 3 CLARITY, CLARITY EXTENSION, and ORACLE-MS trials, as well as the Phase 2 ONWARD trial, and the ongoing long-term PREMIERE study. Besides showing the long-term impact of two short courses of Mavenclad ā€” patients took tablets for a maximum of 20 days over two years ā€” this latest study showed that continuing treatment into the third or fourth year offered no additional benefits. This finding supports Merckā€™s earlier studies, which suggested that Mavenclad resets the immune system. This is a stark contrast in treatment approach to most approved MS drugs which work by suppressing either T- or B- immune cells over the long term. Researchers also deemed safety to be similar in the two groups. Most adverse events were mild or moderate, and most patients who had their B-cells and T-cells depleted in the first part of the study had normal, or nearly normal, levels at the end of the extension. Shingles were most common in patients who received the highest cumulative dose of the drug, affecting 4.8 percent of participants. But in the remaining treatment groups, rates of the viral infection were similar at 1.1 to 2 percent, researchers said. Besides Merck's own studies, an independent study recently demonstrated that Mavenclad also improves patientsā€™ quality of life. As such, the company plans to file regulatory approval for Mavenclad in the United States and elsewhere.

Mavenclad Improves Relapsing MS Patientsā€™ Quality of Life, Independent U.K. Study Finds

Merckā€™s Mavenclad tablets significantly improve quality of life among relapsing multiple sclerosis patients while reducing the number of relapses, according to new analyses of previously unpublished data from clinical trials assessing the drug. This new data, published in the Multiple Sclerosis Journal, come just as the European Commission ponders whether to approve the once- rejected therapy to treat relapsing forms of MS. Its decision is expected later this month, seven years after a perceived increased of cancer risk led the European Medicines Agency (EMA) to block Mavenclad. In 2011, the U.S. Food and Drug Administration (FDA) rejected the medication, forcing its eventual withdrawal from the Australian and Russian markets, where it had already been licensed. For the study, researchers at Queen Mary University of London used data obtained from the EMA through a Freedom of Information request. They analyzed data from the Phase 3 CLARITY trial, which compared Mavenclad to placebo. The trial's 1,326 participants completed a quality-of-life questionnaire that focused on disease aspects such as mobility, self-care, usual activities, pain or discomfort, and anxiety. After two years, those on Mavenclad had significantly improved their quality of life compared to the control group, particularly in terms of self-care. Mavenclad also helped mobility, which might be related to its ability to prevent relapses and delay progression, researchers said. While researchers assessed quality of life using two different questionnaires, patients had only completed one in sufficient numbers to allow for a solid analysis. The other quality-of-life tool provided researchers with numerically positive results, but the low number of responses made the result difficult to interpret. This wasn't the first time QMUL researchers have contributed in this way to knowledge of Mavenclad in MS. In 2015, they used a Freedom of Information request to obtain data showing that Mavenclad was not related to increased cancer risk. ā€œCladribine seemed to have such excellent potential as a treatment for MS that we thought it was tragic the development program was shelved, and significant parts of the clinical trial data remained unpublished,ā€ study leader Klaus Schmierer, a neurologist at both QMUL and Barts Health NHS Trust, said in a press release. ā€œIn addition to the drug being highly effective, well tolerated and safe as far as short-term studies can show, we now know it also improves patientsā€™ quality of life. The new results seemed so clear, we felt it was extremely important to publish and share these data." Mavenclad has now been studied in some 2,700 patients with relapsing MS in the Phase 3 trials CLARITY, CLARITY EXTENSION, and ORACLE-MS, as well as the Phase 2 ONWARD trial, and the ongoing long-term study PREMIERE. The treatment differs from most other oral MS therapies in that a short treatment course ā€” a maximum 20 days ā€” triggered effects that were upheld for two years. Studies of Mavencladā€™s mechanisms suggest the drug gets such results by resetting the immune system. In June 2017, the EMA's Committee for Medicinal Products for Human Use urged the European Commission to approve Mavenclad. Merck also plans to seek U.S. approval for its therapy and is now in talks with the FDA about Mavenclad's future.

Cladribine Tablets Are Only a Step Away from European Union Approval for Relapsing Multiple Sclerosis

Merckā€™sĀ cladribine tablets are now just one step away from obtaining European Union approval as a relapsing multiple sclerosis treatment. The European Medicines Agency’s Committee for Medicinal Products for Human UseĀ has recommended that the European Commission approve theĀ tablets. ā€œThe positive opinion from the CHMPĀ [the committee] is an extraordinary…