OBJECTIVE: SELECTED, an open-label extension study, evaluated daclizumab beta treatment for up to 6 years in participants with relapsing multiple sclerosis who completed the randomized SELECT/SELECTION studies. We report final results of SELECTED. METHODS: Eligible participants who completed 1-2 years of daclizumab beta treatment in SELECT/SELECTION received daclizumab beta 150 mg subcutaneously every 4 weeks for up to 6 years in SELECTED. Safety assessments were evaluated for the SELECTED treatment period; efficacy data were evaluated from first dose of daclizumab beta in SELECT/SELECTION. RESULTS: Ninety percent (410/455) of participants who completed treatment in SELECTION enrolled in SELECTED. Within SELECTED, 69% of participants received daclizumab beta for > 3 years, 39% for > 4 years, and 9% for > 5 years; 87% of participants experienced an adverse event and 26% a serious adverse event (excluding multiple sclerosis relapse). No deaths occurred. Overall, hepatic events were reported in 25% of participants; serious hepatic events in 2%. There were no confirmed cases of immune-mediated encephalitis. Based on weeks from the first daclizumab beta dose in SELECT/SELECTION, adjusted annualized relapse rate (95% confidence interval) for weeks 0-24 was 0.21 (0.16-0.29) and remained low on continued treatment. Overall incidence of 24-week confirmed disability progression was 17.4%. Mean numbers of new/newly enlarging T2 hyperintense lesions remained low; percentage change in whole brain volume decreased over time. CONCLUSIONS: The effects of daclizumab beta on clinical and radiologic outcomes were sustained for up to ~ 8 years of treatment. No new safety concerns were identified in SELECTED. TRIAL REGISTRATION: Clinicaltrials.gov NCT01051349; first registered on January 15, 2010.

• Klíčová slova
• Clinical trial, Daclizumab beta, Relapsing–remitting multiple sclerosis, SELECTED,
• MeSH
• daklizumab * škodlivé účinky   terapeutické užití   MeSH
• dospělí MeSH
• humanizované monoklonální protilátky MeSH
• imunoglobulin G MeSH
• imunosupresiva * škodlivé účinky   terapeutické užití   MeSH
• lidé MeSH
• relabující-remitující roztroušená skleróza * farmakoterapie   MeSH
• roztroušená skleróza * MeSH
• Check Tag
• dospělí MeSH
• lidé MeSH
• mužské pohlaví MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• klinické zkoušky MeSH
• Názvy látek
• daklizumab * MeSH
• humanizované monoklonální protilátky MeSH
• imunoglobulin G MeSH
• imunosupresiva * MeSH

Daclizumab is a humanized monoclonal antibody that binds to the α subunit (CD25) of the interleukin-2 receptor and favorably modulates the immune environment in multiple sclerosis (MS). Blockage of CD25, among other effects, causes expansion and enhanced function of regulatory CD56bright natural killer cells, which seems to be the leading mechanism of action in MS. Phase II and III clinical trials have demonstrated that monthly subcutaneous injections of daclizumab high yield process (DAC HYP) 150 mg in patients with relapsing MS led to a significant reduction of annualized relapse rate and decreased number of contrast-enhanced lesions on brain magnetic resonance imaging. Treatment with DAC HYP had efficacy superior to treatment with weekly injections of interferon β1a. This review summarizes the development of and clinical experience with daclizumab in MS.

• Klíčová slova
• CD25, daclizumab, interleukin 2, multiple sclerosis,
• Publikační typ
• časopisecké články MeSH
• přehledy MeSH

INTRODUCTION: Multiple sclerosis (MS) is more common in women and can occur during childbearing years; thus, information on outcomes following exposure to MS therapy during pregnancy is important. No formal studies of daclizumab have been conducted in pregnant women. Here, we report available nonclinical and clinical data on pregnancy outcomes from the daclizumab clinical study program. METHODS: Reproductive and developmental toxicity studies were conducted in cynomolgus monkeys. Reports of pregnancies that occurred during the daclizumab clinical study program through March 9, 2015 were collated and summarized. In the event of pregnancy, daclizumab was discontinued and safety monitoring continued. RESULTS: Studies in cynomolgus monkeys showed no daclizumab-related effects on maternal well-being, embryo-fetal development, indirect fertility end points, and pre- and postnatal development and growth. Across the clinical study program, 38 pregnancies were reported in 36 daclizumab-exposed women (on treatment ≤6 months from last dose); 20 resulted in live births and four (11%) in spontaneous abortions or miscarriages. One congenital heart defect (complex transposition of great vessels) occurred in one live birth (considered unrelated to daclizumab); daclizumab had been discontinued and intramuscular interferon beta-1a and lisinopril were used at conception. Eight women had an elective termination, two had an ectopic pregnancy, and two were lost to follow-up; two pregnancy outcomes are pending. Six additional pregnancies occurred in five women >6 months after their last daclizumab dose; in one additional pregnancy, exposure was unknown. CONCLUSION: Spontaneous abortion rate in daclizumab-exposed women was consistent with early pregnancy loss in the general population (12%-26%). Data on pregnancies exposed to daclizumab do not suggest an increased risk of adverse fetal or maternal outcomes, although the numbers are too small for definitive conclusions. CLINICALTRIALS. GOV IDENTIFIERS: NCT00390221, NCT01064401, NCT01462318, NCT00870740, NCT01051349, and NCT01797965. FUNDING: Biogen and AbbVie Biotherapeutics Inc.

• Klíčová slova
• Clinical trials, Daclizumab, Multiple sclerosis, Pregnancy, Teratogenicity,
• Publikační typ
• časopisecké články MeSH

BACKGROUND: Daclizumab is a humanized monoclonal antibody against CD25 that modulates interleukin 2 signaling. The SELECT TRILOGY of clinical studies (SELECT/SELECTION/SELECTED) evaluated the safety and efficacy of daclizumab in patients with relapsing-remitting multiple sclerosis (RRMS). We report the long-term safety and efficacy of daclizumab 150 mg subcutaneous every 4 weeks in patients with RRMS in the SELECTED open-label extension study. METHODS: An interim intent-to-treat analysis of all enrolled patients was performed in January 2014 for this ongoing study. RESULTS: The SELECTED study enrolled 90% of patients who completed SELECTION. In the safety and efficacy analysis (N = 410), median treatment time in SELECTED was 25 months (range, <1-45). Adverse events (AEs) were reported in 76% of patients, serious AEs (SAEs) excluding MS relapse in 16%, and treatment discontinuation due to AEs including multiple sclerosis (MS) relapse in 12%. AEs were primarily of mild to moderate severity, and common AEs (≥10%), excluding MS relapse, were nasopharyngitis (12%) and upper respiratory tract infection (12%). Most commonly reported SAEs (in ≥3 patients), excluding MS relapses, were increased serum hepatic enzymes, pneumonia, ulcerative colitis, and urinary tract infection (<1% each). Incidences of AE groups of interest include cutaneous events (28%), cutaneous SAEs (2%), gastrointestinal SAEs (2%), hepatic SAEs, (1%) and malignancies (1%). The incidence of AEs, SAEs, and treatment-related study discontinuations did not increase over time and no deaths were reported. The adjusted annualized relapse rate (95% confidence interval (CI)) analyzed at 6-month intervals was 0.15 (0.10-0.22) for weeks 97-120 and 0.15 (0.10-0.21) for weeks 121-144. In year 3, the adjusted mean (95% CI) number of new/newly enlarging T2 hyperintense lesions was 1.26 (0.93-1.72) and the mean (median) annualized change in brain volume was -0.32% (-0.34%). CONCLUSIONS: The AE incidence did not increase with extension of therapy into year 3 in SELECTED; the safety profile was similar to that previously observed. The clinical efficacy of daclizumab was sustained over the 3 years comprising the SELECT TRILOGY, although potential selection bias cannot be excluded. TRIAL REGISTRATION: Clinicaltrials.gov NCT01051349; first registered January 15, 2010.

• Klíčová slova
• Daclizumab, Efficacy, Relapsing-remitting multiple sclerosis, Safety,
• MeSH
• alanintransaminasa účinky léků   MeSH
• analýza podle původního léčebného záměru MeSH
• aspartátaminotransferasy účinky léků   MeSH
• bezpečnost MeSH
• daklizumab MeSH
• dospělí MeSH
• humanizované monoklonální protilátky aplikace a dávkování   škodlivé účinky   terapeutické užití   MeSH
• imunoglobulin G aplikace a dávkování   škodlivé účinky   terapeutické užití   MeSH
• imunosupresiva aplikace a dávkování   škodlivé účinky   terapeutické užití   MeSH
• infekce dýchací soustavy chemicky indukované   MeSH
• infekce močového ústrojí chemicky indukované   MeSH
• injekce subkutánní MeSH
• kohortové studie MeSH
• léková dermatitida etiologie   MeSH
• lidé středního věku MeSH
• lidé MeSH
• longitudinální studie MeSH
• mozek účinky léků   MeSH
• následné studie MeSH
• nazofaryngitida chemicky indukované   MeSH
• pneumonie chemicky indukované   MeSH
• receptor interleukinu-2 - alfa-podjednotka aplikace a dávkování   terapeutické užití   MeSH
• recidiva MeSH
• relabující-remitující roztroušená skleróza farmakoterapie   MeSH
• ulcerózní kolitida chemicky indukované   MeSH
• výsledek terapie MeSH
• Check Tag
• dospělí MeSH
• lidé středního věku MeSH
• lidé MeSH
• mužské pohlaví MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• klinické zkoušky MeSH
• multicentrická studie MeSH
• práce podpořená grantem MeSH
• srovnávací studie MeSH
• Názvy látek
• alanintransaminasa MeSH
• aspartátaminotransferasy MeSH
• daklizumab MeSH
• humanizované monoklonální protilátky MeSH
• imunoglobulin G MeSH
• imunosupresiva MeSH
• receptor interleukinu-2 - alfa-podjednotka MeSH