Clinical expertise

Dr David Wrench treats patients with haematological cancers as part of a multidisciplinary team and investigates new presentations to haematology, such as:

  • suspected cancer
  • lumps
  • anaemia
  • abnormal blood counts

The main focus of his work is to improve the treatment and outcome of patients with lymphoma.

He performs treatments such as:

  • bone marrow aspirate and biopsy procedures
  • chemotherapy
  • immunotherapy


Dr David Wrench is a consultant haematologist who has worked at Guy’s and St Thomas’ since 2012.

Dr Wrench graduated with his medical degree from Cambridge University, and then went on to further his training by completing specialist haematology training in London at St Bartholomew’s, Hammersmith and Royal Free Hospitals.

He completed a PhD thesis researching molecular mechanisms of the transformation follicular lymphoma and continues to author peer-reviewed research and guidelines.

He is the clinical lead for Teenage and Young Adult (TYA) cancer, co-chair of the SELCA haemato-oncology group, governance lead for clinical haematology, a member of the NCRI low grade lymphoma group and a member of the Blood Cancer UK Healthcare advisory panel.

Research interests

David’s clinical interests include:

  • general haematology
  • haemato-oncology
  • lymphoma treatment
  • transformation of follicular lymphoma

He has an interest in novel therapies and actively recruits to national and international clinical trial studies as a PI across a range of lymphoma diagnoses in both new and relapse settings.