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FEATURE According to Dr. Muffly, if a patient is “on the bubble” and can go to either a pediat- ric or adult center, but the adult center lacks clinical trial options or clinical expertise in treating ALL, it may make more sense to send the AYA patient to the pediatric center. Over time, the barriers that exist now between pediatric, adult, and AYA patients may break down, shifting the question from who “owns” ALL to how pediatric and adult specialists can work together to achieve the best outcomes in patients with ALL under the age of 40 – regardless of the setting. “There’s little reason – outside of regu- latory decisions – to separate this disease into pediatric or adult spheres,” Dr. Muffly said. “Pediatric and adult hematologists and oncologists should be working togeth- er, learning from each other, and conduct- ing studies across the age spectrum.” —By Jill Sederstrom ● 7 DRUG INTERACTIONS 7.1 Effects of Other Drugs on COPIKTRA CYP3A Inducers: Co-administration with a strong CYP3A inducer decreases duvelisib area under the curve (AUC) [see Clinical Pharmacology (12.3)], which may reduce COPIKTRA efficacy. Avoid co-administration of COPIKTRA with strong CYP3A4 inducers. CYP3A Inhibitors: Co-administration with a strong CYP3A inhibitor increases duvelisib AUC [see Clinical Pharmacology (12.3)], which may increase the risk of COPIKTRA toxicities. Reduce COPIKTRA dose to 15 mg BID when co-administered with a strong CYP3A4 inhibitor [see Dosage and Administration (2.4)]. 7.2 Effects of COPIKTRA on Other Drugs CYP3A Substrates: Co-administration with COPIKTRA increases AUC of a sensitive CYP3A4 substrate [see Clinical Pharmacology (12.3)] which may increase the risk of toxicities of these drugs. Consider reducing the dose of the sensitive CYP3A4 substrate and monitor for signs of toxicities of the co-administered sensitive CYP3A substrate. 8 USE IN SPECIFIC POPULATIONS 8.1 Pregnancy Risk Summary: Based on findings from animal studies and the mechanism of action, COPIKTRA can cause fetal harm when administered to a pregnant woman [see Clinical Pharmacology (12.1)]. There are no available data in pregnant women to inform the drug-associated risk. The estimated background risk of major birth defects and miscarriage for the indicated population is unknown. All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2-4% and 15-20%, respectively. 8.2 Lactation Risk Summary: There are no data on the presence of duvelisib and/or its metabolites in human milk, the effects on the breastfed child, or on milk production. Because of the potential for serious adverse reactions from duvelisib in a breastfed child, advise lactating women not to breastfeed while taking COPIKTRA and for at least 1 month after the last dose. 8.3 Females and Males of Reproductive Potential Pregnancy Testing: COPIKTRA can cause fetal harm when administered to a pregnant woman [see Use in Specific Populations (8.1)]. Conduct pregnancy testing before initiation of COPIKTRA treatment. Contraception Females Based on animal studies, COPIKTRA can cause fetal harm when administered to a pregnant woman. Advise females of reproductive potential to use effective contraception during treatment with COPIKTRA and for at least 1 month after the last dose. Males Advise male patients with female partners of reproductive potential to use effective contraception during treatment with COPIKTRA and for at least 1 month after the last dose. Infertility Based on testicular findings in animals, male fertility may be impaired by treatment with COPIKTRA [see Nonclinical Toxicology (13.1)]. There are no data on the effect of COPIKTRA on human fertility. 8.4 Pediatric Use Safety and effectiveness of COPIKTRA have not been established in pediatric patients. Pediatric studies have not been conducted. 8.5 Geriatric Use Clinical trials of COPIKTRA included 270 (61%) patients that were 65 years of age and older and 104 (24%) that were 75 years of age and older. No major differences in efficacy or safety were observed between patients less than 65 years of age and patients 65 years of age and older. PM-US-DUV-18-0052 REFERENCES 1. H  unger SP, Lu X, Devidas M, et al. Improved survival for children and adolescents with acute lymphoblastic leukemia between 1990 and 2005: a report from the children’s oncology group. J Clin Oncol. 2012:30:1663-9. 2. Adolescent and Young Adult Oncology Progress Review Group. Closing the gap: research and care imperatives for adolescents and young adults with cancer. Accessed November 1, 2018, from https://deainfo.nci.nih.gov/ advisory/ncab/archive/139_0906/presentations/AYAO.pdf. 5. Moorman AV, Chilton L, Wilkinson J, Ensor HM, Bown N, Proctor SJ. A population-based cytogenetic study of adults with acute lymphoblastic leukemia. Blood. 2010;115:206-14. 6. Ryttig ME, Jabbour EJ, O’Brien SM, Kantarjian HM. Acute lymphoblastic leukemia in adolescents and young adults. Cancer. 2017;123:2398-403. 7. Butlow P, Palmer S, Goodenough B, et al. Review of adherence-related issues in adolescents and young adults with cancer. J Clin Oncol. 2010;28:4800-9. 3. Pulte D, Gondos A, Brenner H. Improvement in survival in younger patients with acute lymphoblastic leukemia from 1980s to the early 21st century. Blood. 2009;113:1408-11. 8. Monheit AC, Cantor JC, DeLia D, Belloff D. How have state policies to expand dependent coverage affected the health insurance status of young adults? Health Serv Res. 2011;46:251-67. 4. S  haw PH, Hayes-Lattin B, Johnson R, Bleyer A. Improving enrollment in clinical trials for adolescents with cancer. Pediatrics. 2014;133(suppl 3):S109-13. 9. G  upta S, Pole JD, Lau C, et al. Superior survival in adolescents and young adults (AYA) with acute lymphoblastic leukemia (ALL) treated in pediatric vs. adult centers is only partially attributable to inadequate adoption of pediatric protocols: A population-based IMPACT Cohort study. J Clin Oncol. 2018;36:6564. 10. M  uffly L, Alvarez E, Lichtensztajn D, et al. Patterns of care and outcomes in adolescent and young adult acute lymphoblastic leukemia: a population-based study. Blood Advances. 2018;2:895-903. 11. S  tock W, Luger SM, Advani AS, et al. Favorable outcomes for older adolescents and young adults (AYA) with acute lymphoblastic leukemia (ALL): early results of U.S. Intergroup Trial C10403. Blood. 2014;124:796. Mark Your Calendar AYA: Big Children or Small Adults? Leukemia Treatment in Adolescence Saturday, December 1, 2018, 7:30 a.m. - 9:00 a.m. Marriott Marquis San Diego Marina, San Diego Ballroom B Monday, December 3, 2018, 10:30 a.m. - 12:00 p.m. Marriott Marquis San Diego Marina, Pacific Ballroom 21 Management of AYAs with leukemia requires an understanding of age- related differences in disease biology, identification of optimal treatment regimens based on current evidence, and the ability to provide adequate psychosocial support during and after therapy. In this session, we will continue to explore why outcomes in AYAs remain inferior compared with other age groups. Chair: Kathryn G. Roberts, PhD, St. Jude Children’s Research Hospital, Memphis, TN Speakers: Kathryn G. Roberts, PhD, St. Jude Children’s Research Hospital, Memphis, TN Genetics and Prognosis in Children Versus Adults K. Scott Baker, MD, MS, Fred Hutchinson Cancer Research Center, Seattle, WA Long-Term Complications in AYA Leukemia Survivors Theresa H.M. Keegan, PhD, MS, University of California – Davis, Sacramento, CA Adolescent Angst: Enrollment in Clinical Trials ASH Clinical News 161