The British Osteonecrosis Study: A Prospective Multi-centre Study to Examine the Natural History of Osteonecrosis in Older Children, Teenagers and Young Adults With Acute Lymphoblastic Leukaemia and Lymphoblastic Lymphoma

Children, teenagers or young adults between the age of 10 (including the day of the 10th birthday) and 24 years 364 days (at the time of diagnosis) with a first diagnosis of acute lymphoblastic leukaemia or lymphoblastic lymphoma (T-NHL or SmIg negative precursor B-NHL) diagnosed under standard criteria are eligible for BONES.

The recruitment target is 50 over a 2 year period, which is based on an anticipated ascertainment target of 75%.

Information will be collected on basic demographics, presenting features and diagnosis at initial recruitment. Further data will be collected at the end of induction to ascertain treatment and response, along with results of relevant investigations performed in induction detailed below. Clinical information collected will include height, weight and puberty stage. At the four subsequent time points when MRI imagine is performed further data will also be collected, including a physiotherapy assessment using a structured assessment tool and child health assessment questionnaire, and biochemical information.

Investigations

The results of the following investigations, usually performed as part of the routine assessment, will be collected: