Utilising QuantiFERON-CMV to personalise CMV management in haemopoietic stem cell transplant patients

ISRCTN ISRCTN14657861
DOI https://doi.org/10.1186/ISRCTN14657861
Integrated Research Application System (IRAS) 318862
Sponsor Cambridge University Hospitals NHS Foundation Trust
Funder Addenbrooke's Charitable Trust, Cambridge University Hospitals
Submission date
13/01/2026
Registration date
15/07/2026
Last edited
16/07/2026
Recruitment status
No longer recruiting
Overall study status
Ongoing
Condition category
Other
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
Human cytomegalovirus (CMV) is a common virus that can cause severe infections in patients with weakened immune systems, such as those who have undergone a haemopoietic stem cell transplant (HSCT). Patients who have undergone an HSCT are at highest risk of CMV disease between 1 and 3 months after transplant. For this reason, all patients have to take a medication called Letermovir to prevent CMV infection for the first 100 days after their transplant. The aim of this study is to investigate the body’s immune response to CMV after transplant using a blood test called QuantiFERON-CMV. This blood test will help us to determine how quickly and how commonly the body’s natural immunity to CMV returns after HSCT. It will also give us an understanding of how soon after a HSCT letermovir, used to prevent CMV, can safely be stopped. In addition, we will be investigating whether we can develop a new blood test to investigate for CMV infection (called a whole blood CMV-specific IFN assay). We will also compare how well this new test works compared to the QuantiFERON-CMV (QF-CMV) test and to the gold standard FluoroSpot assay.

Who can participate?
Patients aged 16 years and over who are due to receive an allogenic haemopoietic stem cell transplant at CUH.

What does the study involve?
The study involves assessing in the context of prophylaxis with letermovir, the prevalence of stable CMV-specific T-cell immune reconstitution, defined as two reactive QF-CMV responses at 6 and 8 weeks after HSCT, and measured by the QuantiFERON-CMV ELISA assay (Qiagen). Participants will follow study procedures as outlined in the protocol, including scheduled visits and data collection.

What are the possible benefits and risks of participating?
There is no guarantee that participants will directly benefit from taking part in this study. Information collected as part of their participation in this study may help contribute to the advancement of medical knowledge and potentially improve the management of CMV infection in HSCT patients.
The risks associated with participating in this study are minimal and are limited to the standard risks associated with having blood drawn, such as discomfort, bruising, or infection at the site of blood collection.
This study has been designed to fit alongside normal patient care and treatment (the standard of care pathway) where possible, but additional clinic visits may need to be scheduled to align with the study sample and data collection time points. Taking part in this study will not disadvantage the participants' standard care in any way.

Where is the study run from?
Addenbrooke's Hospital (UK)

When is the study starting and how long is it expected to run for?
December 2025 to February 2027

Who is funding the study?
Addenbrookes Charitable Trust (ACT) (UK)

Who is the main contact?
Alexandra Azevedo, alex.azevedo@nhs.net

Contact information

Miss Alexandra Azevedo
Public, Scientific

Addenbrookes Hospital
Cambridge
CB2 0QQ
United Kingdom

Phone +44 (0)1223216083
Email alex.azevedo@nhs.net
Dr Dami Collier
Principal investigator

CCTU-CT theme, S4 block, Addenbrookes Hospital
Cambridge
CB2 0QQ
United Kingdom

Phone +44 (0)1223216063
Email cuh.quic@nhs.net

Study information

Primary study designObservational
Observational study designLongitudinal study
Participant information sheet 48824_PIS_V1.0_17Dec2024.pdf
Scientific titleUtilising QuantiFERON-CMV to personalise CMV management in haemopoietic stem cell transplant patients
Study acronymQuIC
Study objectives Primary objective:
To determine, in the context of prophylaxis with letermovir, the prevalence of stable CMV-specific T-cell immune reconstitution.

Secondary objectives:
1. Explore the association between stable CMV-specific T-cell immune reconstitution and clinical outcomes (including CMV viraemia, CMV disease, CMV mutation and death) at 12 months
2. Evaluate the cost savings if letermovir is stopped after 8 weeks rather than 100 days in those with stable CMV-specific T-cell immune reconstitution

Exploratory objectives:
1. Develop an in-house whole blood CMV-specific IFN𝛾 assay that may be transferable to clinical practice
2. Determine the diagnostic accuracy of the in-house whole blood CMV-specific IFN𝛾 assay compared with the QuantiFERON-CMV ELISA assay (Qiagen) and Fluorospot assay
3. Identify any CMV mutations emerging in the first 52 weeks following allogeneic-HSCTs
Ethics approval(s)

Approved 03/02/2025, Health and Care Research Wales (Floor four, North, Welsh Government Offices, Crown Building, King Edward VII Ave, Cardiff, CF10 3NQ, United Kingdom; +44 (0)29 2023 0457; E. Essex.REC@hra.nhs.uk), ref: 318862

Health condition(s) or problem(s) studiedAllogeneic haemopoietic stem cell transplant
MethodologyWe plan to recruit 60 evaluable participants who are due to undergo a HSCT at Cambridge University Hospitals NHS Foundation Trust, Addenbrooke’s Hospital, and will follow them up over 12 months following their HSCT. Participants will be evaluated at a baseline visit. Follow-up will occur at 6 weeks, 8 weeks, 12 weeks and 12 months post-transplant, during which all participants will have blood samples collected to test for their immune response to CMV. Participants who develop CMV viraemia disease during the course of follow-up will also be asked by the study team to provide residual clinical samples for CMV sequencing. Participants will reach the end of the study once the 12month FU visit is concluded.
Intervention typeOther
Primary outcome measure(s)
  1. Prevalence of stable CMV-specific T-cell immune reconstitution in the context of Letermovir prophylaxis, defined as two reactive QF-CMV responses, measured using QuantiFERON-CMV ELISA assay at week 6 and 8 post allogenic-HSCT
Key secondary outcome measure(s)

1. CMV viraemia, disease, mutation and mortality measured using data collected from SoC results recorded in the medical notes at 52 weeks
2. Cost savings if letermovir is stopped after 8 weeks rather than 100 days in those with stable CMV-specific T-cell immune reconstitution, measured using data collected from SoC results recorded in the medical notes at 6, 8, 12 and 52 weeks follow-ups

Completion date03/02/2027

Eligibility

Participant type(s)
Age groupMixed
Lower age limit16 Years
Upper age limit100 Years
SexAll
Target sample size at registration60
Key inclusion criteria1. Written informed consent form
2. Aged 16 years old or above
3. Due to undergo an allogeneic-HSCT at Cambridge University Hospitals NHS Foundation Trust Addenbrooke’s Hospital
4. Confirmed determination of donor AND recipient CMV status by serology
5. Due to take Letermovir prophylaxis following the allogeneic-HSCT
6. Willing and able to comply with scheduled visits, treatment plans, sample collections and other study procedures for the duration of the study
Key exclusion criteria1. Patient is CMV seronegative
2. Patient is in receipt of virus-specific T cell therapy
Date of first enrolment09/12/2025
Date of final enrolment03/02/2026

Locations

Countries of recruitment

  • United Kingdom
  • England

Study participating centre

Addenbrookes
Addenbrookes Hospital
Hills Road
Cambridge
CB2 0QQ
England

Results and Publications

Individual participant data (IPD) Intention to shareNo

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Participant information sheet version 1.0 17/12/2024 16/07/2026 No Yes
Protocol file version 1.1 23/04/2025 16/07/2026 No No

Additional files

48824_PIS_V1.0_17Dec2024.pdf
Participant information sheet
48824_Protocol_V1.1_23Apr2025.pdf
Protocol file

Editorial Notes

19/01/2026: Study's existence confirmed by the HRA.