Clinical characteristics TSEN54 pontocerebellar hypoplasia (TSEN54-PCH) comprises three PCH phenotypes (PCH2, 4, and 5) that share characteristic neuroradiologic and neurologic findings. The three PCH phenotypes (which differ mainly in life expectancy) were considered to be distinct entities before their molecular basis was known. Diagnosis/testing The diagnosis of TSEN54-PCH is suspected in children with characteristic neuroradiologic and neurologic findings, and is confirmed by the presence of biallelic TSEN54 pathogenic variants. Management Treatment of manifestations PCH2 Treatment of irritability, swallowing incoordination, epilepsy, and central visual impairment is symptomatic. Physiotherapy can be helpful. Adequate hydration during prolonged periods of high fever may help avoid rhabdomyolysis. PCH4 and PCH5 No specific therapy is available. Surveillance PCH2 Routine monitoring of respiratory function, feeding, musculoskeletal and neurologic manifestations, developmental milestones, and family needs. Genetic counseling TSEN54-PCH is inherited in an autosomal recessive manner. If each parent is known to be heterozygous for a TSEN54 pathogenic variant, each sib of an affected individual has at conception a 25% chance of inheriting both pathogenic variants and being affected, a 50% chance of inheriting one pathogenic variant and being an unaffected carrier, and a 25% chance of inheriting both normal alleles. Once the TSEN54 pathogenic variants have been identified in an affected family member, molecular genetic testing to determine carrier status of at-risk relatives, prenatal testing for pregnancies at increased risk, and preimplantation genetic testing are possible.Clinical characteristics Alpha-thalassemia X-linked intellectual disability (ATR-X) syndrome is characterized by distinctive craniofacial features, genital anomalies, hypotonia, and mild-to-profound developmental delay / intellectual disability (DD/ID). Craniofacial abnormalities include small head circumference, telecanthus or widely spaced eyes, short triangular nose, tented upper lip, and thick or everted lower lip with coarsening of the facial features over time. While all affected individuals have a normal 46,XY karyotype, genital anomalies comprise a range from hypospadias and undescended testicles, to severe hypospadias and ambiguous genitalia, to normal-appearing female external genitalia. Alpha-thalassemia, observed in about 75% of affected individuals, is mild and typically does not require treatment. Osteosarcoma has been reported in a few males with germline pathogenic variants. Diagnosis/testing The diagnosis of ATR-X syndrome is established in a proband with suggestive findings, a 46,XY karyotypsk females, prenatal testing for pregnancies at increased risk, and preimplantation genetic testing are possible.Clinical characteristics Arginase deficiency in untreated individuals is characterized by episodic hyperammonemia of variable degree that is infrequently severe enough to be life threatening or to cause death. Most commonly, birth and early childhood are normal. Untreated individuals have slowing of linear growth at age one to three years, followed by development of spasticity, plateauing of cognitive development, and subsequent loss of developmental milestones. If untreated, arginase deficiency usually progresses to severe spasticity, loss of ambulation, complete loss of bowel and bladder control, and severe intellectual disability. Seizures are common and are usually controlled easily. Individuals treated from birth, either as a result of newborn screening or having an affected older sib, appear to have minimal symptoms. Diagnosis/testing The diagnosis of arginase deficiency is established in a proband with suggestive clinical and/or biochemical findings and confirmed by identification of biallelic pathogenover acetaminophen). Bufalin ic50 Genetic counseling Arginase deficiency is inherited in an autosomal recessive manner. At conception, each sib of an affected individual has a 25% chance of being affected, a 50% chance of being an asymptomatic carrier, and a 25% chance of being unaffected and not a carrier. Heterozygotes (carriers) are asymptomatic. Carrier testing for at-risk relatives and prenatal testing for pregnancies at increased risk are possible if the ARG1 pathogenic variants in the family are known.Background The Systemic Therapy for At Risk Teens (START) trial is a randomised controlled trial of multisystemic therapy (MST) compared with management as usual (MAU). The present study reports on long-term follow-up of the trial (to 60 months). Objectives The primary objective was to compare MST and MAU for the proportion of young people in each group with criminal convictions up to 60 months post baseline. Secondary outcomes included group comparisons of psychological and behavioural factors. An economic analysis was carried out to determine the cost-effectiveness of MST compared with MAU. Two qualitative studies were conducted to better understand the subjective experiences of the participants. Design Primary outcomes (collected up to 60 months) were collected using a centralised police database. Secondary outcomes were evaluated using self-report questionnaires completed by both young people and parents or carers at the 24-, 36- and 48-month follow-ups. Research assistants were blind to treatment allocatl as for identifying and testing new moderators. Conclusions The results of the second phase of the START trial do not support the long-term superiority of MST to MAU, but elements of the intervention may be adapted successfully. Trial registration Current Controlled Trials ISRCTN77132214 and London South-East REC registration number 09/H1102/55. Funding This project was funded by the National Institute for Health Research (NIHR) Health Services and Delivery Research programme and will be published in full in Health Services and Delivery Research; Vol. 8, No. 23. See the NIHR Journals Library website for further project information.Because of the individualized nature of drug and therapeutic treatments, clinical trials require participants who represent the diversity of the patient base. If early trials do not have a broad patient base, it can be difficult to know who may or may not benefit from or respond to a treatment later. In addition to diversity in recruitment, informed consent during participation is also crucial. If participants do not fully understand what they are signing up for, they may become confused, mistrustful, or drop out of a trial altogether, confusing investigators and possibly affecting the generalizability of a study. To explore the incorporation of health literacy practices into clinical trials, the Roundtable on Health Literacy convened a workshop titled Clinical Trials Practice and Impact on April 11, 2019, in Washington, DC. The workshop presentations and discussion centered around issues related to the challenges or barriers for diverse populations’ participation in clinical trials, best practices for clinical trial sites and researchers incorporating health literacy practices, and effective health literacy strategies for clear communication with participants.