HIGH WYCOMBE, England, March 18, 2016 /PRNewswire/ --
Efficacy and safety results from second Phase 3 Induction Study (UNITI-1) in patients refractory to TNF Inhibitors, presented at the 11th European Crohn's and Colitis Organisation Congress
Phase 3 data presented at the 11th Congress of the European Crohn's and Colitis Organisation (ECCO) showed that treatment with STELARA® (ustekinumab) induced clinical response and clinical remission in adult patients with moderate to severe Crohn's disease who had previously failed or were intolerant to one or more anti-tumour necrosis factor (TNF)-alpha therapies (anti-TNF failure population). These data are important because there are relatively few treatment options available for patients who are refractory to TNF inhibitors.
Crohn's disease is a chronic inflammatory bowel disease that affects the lining of the digestive tract. It affects approximately 115,000 people in the UK and is associated with abnormalities of the immune system that could be triggered by a genetic predisposition or diet and other environmental factors. The cause of Crohn's disease is not known and there is currently no cure.
The Janssen Phase 3 UNITI-1 study, which included 741 people with Crohn's disease, achieved its primary endpoint with ustekinumab treatment groups demonstrating significantly higher rates of clinical response at week 6 when compared with the placebo group (p=0.003, p=0.002, respectively). Major secondary endpoints of clinical response at week 8 and clinical remission at week 8 (p<0.001, p=0.003, respectively) were also significantly higher among patients receiving ustekinumab compared with patients receiving placebo.
In December 2015, Janssen submitted a Grouped Type II Variation/Extension Application to the European Medicines Agency (EMA) seeking approval of ustekinumab for the treatment of adult patients with moderately to severely active Crohn's disease.
These latest findings follow Phase 3 results from the UNITI-2 study, which demonstrated the efficacy and safety of ustekinumab in patients who had previously failed conventional therapy, the majority of whom were naïve to treatment with anti-TNF-alpha therapy. Ustekinumab, which is approved for the treatment of moderate to severe plaque psoriasis and active psoriatic arthritis in many countries, is a monoclonal antibody that targets interleukin (IL)-12 and IL-23 cytokines, which are believed to play a role in immune-mediated diseases, including Crohn's disease.
"These data provide further support to the efficacy and safety of ustekinumab in Crohn's disease. Clinicians in the United Kingdom are keen to have access to new potential therapies that can alleviate some of the symptoms experienced by patients living with this debilitating and difficult to treat condition," commented Dr Stuart Bloom, Consultant Gastroenterologist, University College London Hospitals.
Patients participating in the Phase 3 UNITI-1 study received a single intravenous (IV) infusion of placebo, ustekinumab 130 mg or ustekinumab ~6 mg/kg (weight-tiered dosing: patients weighing less than or equal to 55 kg received 260 mg; patients weighing more than 55 kg and less than or equal to 85 kg received 390 mg; and patients weighing more than 85 kg received 520 mg) at week 0. All enrolled patients had previously failed or were intolerant to treatment with at least one anti-TNF-alpha therapy, and half of the enrolled patients had failed two or more anti-TNF-alpha therapies.
At week 6, 34 percent of patients receiving ustekinumab 130 mg and 34 percent of patients receiving ustekinumab ~6 mg/kg achieved clinical response, as defined by a reduction from baseline in the Crohn's Disease Activity Index (CDAI) score of at least 100 points, compared with 22 percent of patients receiving placebo (P = 0.002 for ustekinumab 130 mg; P = 0.003 for ustekinumab ~6 mg/kg). CDAI is a symptom-based disease assessment tool commonly used in clinical trials to quantify Crohn's disease activity.
At week 8, 34 percent and 38 percent of patients receiving ustekinumab 130 mg and ustekinumab ~6 mg/kg, respectively, achieved clinical response, compared with 20 percent of patients receiving placebo (P < 0.001). In addition, 16 percent of patients receiving ustekinumab 130 mg and 21 percent of patients receiving ustekinumab ~6 mg/kg achieved clinical remission at week 8, as defined by a CDAI score of less than 150 points, compared with 7 percent of patients receiving placebo (P = 0.003 for ustekinumab 130 mg versus placebo; P < 0.001 for ustekinumab ~6 mg/kg versus placebo).
In addition to significant improvements in signs and symptoms as measured by CDAI, both doses of ustekinumab resulted in significant improvements in the Inflammatory Bowel Disease Questionnaire (IBDQ), a health-related quality of life measure for patients with IBD, as well as significant reduction in markers of inflammation, including faecal lactoferrin, calprotectin and C-reactive protein (CRP) (P < 0.001 for ustekinumab ~6 mg/kg; P = 0.012 for ustekinumab 130 mg).
Through week 8 (placebo-controlled period), adverse events (AEs), serious AEs and infections were reported in similar proportions across ustekinumab and placebo treatment groups. One case of Listeria meningitis infection was reported in the ustekinumab ~6 mg/kg group. No malignancies, deaths, cases of tuberculosis or major adverse cardiovascular events (MACE) were observed in patients treated with ustekinumab.
"We are pleased to share these important results from the Phase 3 UNITI-1 induction study, which complement Phase 3 results from the UNITI-2 study and further support regulatory applications submitted seeking approval of ustekinumab for the treatment of moderately to severely active Crohn's disease," said Newman Yeilding, M.D., Head of Immunology Development, Janssen Research & Development, LLC. "Janssen Immunology remains committed to the continued development of ustekinumab and the discovery of innovative medicines for the treatment of immune-mediated diseases."
About the UNITI-1 Trial
UNITI-1, a Phase 3, multicentre, randomised, double-blind, placebo-controlled, parallel group study, evaluated the efficacy and safety of ustekinumab induction therapy in adult patients with moderate to severe Crohn's disease. Patients (n=741) were randomised equally to receive a single IV infusion of placebo, ustekinumab 130 mg or ustekinumab ~6 mg/kg (weight-tiered dosing: patients weighing less than or equal to 55 kg received 260 mg; patients weighing more than 55 kg and less than or equal to 85 kg received 390 mg; and patients weighing more than 85 kg received 520 mg) at week 0. All participating patients had previously failed or were intolerant to treatment with at least one anti-TNF-alpha therapy. The primary endpoint was clinical response at week 6, measured by the proportion of patients who achieved at least a 100-point reduction from baseline CDAI scores. Major secondary endpoints at week 8 included clinical response and clinical remission (defined by CDAI scores less than 150 points). At week 8, patients either transitioned to the IM-UNITI maintenance study or were to complete a safety follow-up period through week 20.
UNITI-1 is part of a comprehensive Phase 3 clinical development program investigating ustekinumab for the treatment of moderate to severe Crohn's disease.
About Crohn's Disease
More than five million people worldwide are living with Crohn's disease and ulcerative colitis-collectively known as inflammatory bowel disease (IBD). Crohn's disease is a chronic inflammatory condition of the gastrointestinal tract. The cause of Crohn's disease is not known, but the disease is associated with abnormalities of the immune system that could be triggered by a genetic predisposition or diet and other environmental factors. Symptoms of Crohn's disease can vary but often include abdominal pain and tenderness, frequent diarrhoea, rectal bleeding, weight loss and fever. There is currently no cure for Crohn's disease.
Ustekinumab, a human IL-12 and IL-23 antagonist, is approved in the European Union for the treatment of moderate to severe plaque psoriasis in adults who failed to respond to, or who have a contraindication to, or are intolerant to other systemic therapies including ciclosporin, MTX or psoralen plus ultraviolet A (PUVA). Ustekinumab is also indicated for the treatment of moderate to severe plaque psoriasis in adolescent patients from the age of 12 years and older who are inadequately controlled by or are intolerant to other systemic therapies or phototherapies. In addition, ustekinumab is approved alone or in combination with MTX for the treatment of active psoriatic arthritis in adult patients when the response to previous non-biological disease-modifying antirheumatic drug (DMARD) therapy has been inadequate.
The Janssen Pharmaceutical Companies of Johnson & Johnson maintain exclusive worldwide marketing rights to ustekinumab, which is currently approved for the treatment of moderate to severe plaque psoriasis in 87 countries and psoriatic arthritis in 71 countries.
Important Safety Information (EU)
Special Warnings & Precautions
Infections: Potential to increase risk of infections and reactivate latent infections. Exercise caution in patients with a chronic infection or history of recurrent infection, particularly TB. Patients should be evaluated for tuberculosis and treated for latent TB prior to initiation of ustekinumab. Also, consider anti-tuberculosis therapy prior to initiation of ustekinumab in patients with past history of latent or active tuberculosis. Patients should seek medical advice if signs or symptoms suggestive of an infection occur. If a serious infection develops, they should be closely monitored and ustekinumab should not be administered until infection resolves.
Malignancies: Potential to increase the risk of malignancy. No studies have been conducted in patients with a history of malignancy or in those who continue to receive ustekinumab after being diagnosed with a malignancy. Exercise caution when considering ustekinumab in these patients. Monitoring for the appearance of non-melanoma skin cancer recommended, in particular for patients greater than 60 years of age, or with a medical history of prolonged immunosuppressant therapy or a history of PUVA treatment.
Hypersensitivity reactions: Serious hypersensitivity reactions (anaphylaxis and angioedema) reported, in some cases several days after treatment. If these occur, institute appropriate therapy and discontinue use of ustekinumab.
Vaccinations: Patients receiving ustekinumab should not receive concurrent live viral or live bacterial vaccines such as BCG. Before live viral or live bacterial vaccination, treatment with ustekinumab should be withheld for at least 15 weeks after the last dose and can be resumed at least 2 weeks after vaccination. Patients receiving ustekinumab may receive concurrent inactivated or non-live vaccinations.
Concomitant immunosuppressive therapy: Exercise caution, including when changing immunosuppressive biologic agents. In psoriasis studies, the safety and efficacy of ustekinumab in combination with other immunosuppressants, including biologics, or phototherapy have not been evaluated. In psoriatic arthritis studies, concomitant MTX use did not appear to influence the safety or efficacy of ustekinumab.
Immunotherapy: Not known whether ustekinumab affects allergy immunotherapy.
Serious skin conditions: In patients with psoriasis, exfoliative dermatitis has been reported following ustekinumab treatment. Patients with plaque psoriasis may develop erythrodermic psoriasis, with symptoms that may be clinically indistinguishable from exfoliative dermatitis, as part of the natural course of their disease. If these symptoms occur, appropriate therapy should be instituted. Ustekinumab should be discontinued if a drug reaction is suspected.
Latex sensitivity: Needle cover contains natural rubber (latex), may cause allergic reactions.
Elderly Patients > 65years: Use caution when treating elderly patients.
For complete European Union (EU) prescribing information, please visit: http://www.ema.europa.eu/ema/index.jsp?curl=pages/medicines/human/medicines/000958/human_med_001065.jsp&mid=WC0b01ac058001d124
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Cautions Concerning Forward-Looking Statements
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Date of preparation: March 2016