Dr Nikolaos Diamantis

Job title

Consultant medical oncologist and clinical lead for colorectal cancer



GMC Number


Contact details

PA/secretary phone number: Katie Davis - 020 7794 0500 ext 32325 Mon-Fri 7:30am-3:30pm

PA/secretary email address: kdavis2@nhs.net

Private practice phone number: Katie Davis - 020 7794 0500 ext 32325

Private practice email address: kdavis2@nhs.net

Related services

Cancer services


Dr Diamantis is a consultant medical oncologist and clinical lead for colorectal cancer. His research interests include immunotherapy for gastro-intestinal malignancies and first-in-human clinical trials. Dr Diamantis is a principal investigator for a number of phase 2/3 clinical trials.


Nivolumab Combination Therapy in Advanced Esophageal Squamous-Cell Carcinoma N Engl J Med 2022 Feb 3;386(5):449-462. doi: 10.1056/NEJMoa2111380

Mortality Among Adults With Cancer Undergoing Chemotherapy or Immunotherapy and Infected With COVID-19 JAMA Netw Open. 2022 Feb 1;5(2):e220130. doi: 10.1001/jamanetworkopen.2022.0130

Time-Dependent COVID-19 Mortality in Patients With Cancer: An Updated Analysis of the OnCovid Registry JAMA Oncol 2022 Jan 1;8(1):114-122. doi: 10.1001/jamaoncol.2021.6199

Prevalence and impact of COVID-19 sequelae on treatment and survival of patients with cancer who recovered from SARS-CoV-2 infection: evidence from the OnCovid retrospective, multicentre registry study Lancet Oncol 2021 Dec;22(12):1669-1680. doi: 10.1016/S1470-2045(21)00573-8

Phase 1/2a trial of intravenous BAL101553, a novel controller of the spindle assembly checkpoint, in advanced solid tumours Br J Cancer 2020 Oct;123(9):1360-1369. doi: 10.1038/s41416-020-1010-8

The role of genomic profiling in adolescents and young adults (AYAs) with advanced cancer participating in phase I clinical trials Eur J Cancer 2018 May;95:20-29. doi: 10.1016/j.ejca.2018.02.028. Epub 2018 Mar 31