New hope for transplant patients: study aims to block dangerous late-stage virus
NCT ID NCT06958796
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether giving CytoGam® (CMV immunoglobulin) after standard antiviral treatment can prevent late CMV infection in high-risk kidney or liver transplant recipients. About 80 participants who are CMV-negative but receive an organ from a CMV-positive donor will be enrolled. The goal is to reduce the chance of serious CMV-related illness and hospitalizations.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 4
Runs after approval, following long-term safety and how well the treatment works in everyday use.
- Participants
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About 80 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Nov 2025
- Expected to finish
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May 2028
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 75 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria * High risk pretransplant CMV donor seropositive/recipient seronegative (D+R-) kidney, liver, or simultaneous liver-kidney (SLK) transplant recipients * Able to do routine blood testing (normal care for transplant recipients) * Written informed consent obtained from the subject before any trial-related procedures * Be ≥18 years and ≤75 years of age at time of consent Exclusion Criteria * Any pre-transplant CMV serologic combinations besides CMV D+/R- * Multi organ transplants (other than simultaneous liver-kidney transplant (SLK) recipients) or prior history of bone marrow or stem cell transplant * Lung, heart, small bowel, pancreas, or other non-kidney or non-liver transplant recipients * Transplant recipients treated for rejection within three months before the end of valganciclovir prophylaxis * Participation in another interventional clinical trial at time of consent or within 30 days prior to study consent * Transplant recipients with eGFR \<30 ml/min/1.73m2 (as they theoretically could be at higher risk for renal impairment with CMV immunoglobulin), poor transplant organ function (i.e. LFTs \> twice the upper limit of normal in liver recipients), or who are on dialysis, or plasmapheresis, or who are relisted for transplant, or who might otherwise at risk of complications at the discretion of the local site investigator. * Those with a history of severe reaction to CMV immunoglobulin (e.g. CytoGam® or similar) or other human immunoglobulin preparations * Individuals with a history of selective immunoglobulin A deficiency will be excluded, as they may produce antibodies against immunoglobulin A, leading to potential anaphylactic reactions upon receiving blood products containing immunoglobulin A, such as CMV immunoglobulin (e.g. CytoGam® or similar) * Any history of acute myocardial infarction (within 12 months of screening), clinically significant arrythmia, or clinically significant ECG abnormality in the opinion of the investigator at time of screening * History of active or latent tuberculosis (except those who have completed a documented regimen for latent TB treatment) or severe pulmonary disease \[e.g., severe pulmonary hypertension (WHO class IV)\] that in the opinion of the investigator that may preclude their ability to safely tolerate study infusions * Any history of neurodegenerative disease, including dementia, or stroke with substantial residual disability (modified Rankin score ≥ 3) * Pregnant or nursing (lactating) women confirmed by human chorionic gonadotropin (hCG) laboratory test. * Women of childbearing potential unless using a highly effective method of contraception during dosing and for 24 weeks after study treatment. Medically acceptable birth control (contraceptives) includes but are not limited to: surgical sterilization (such as hysterectomy or "tubes tied"), approved hormonal contraceptives (such as birth control pills, patch or ring; Depo-Provera, Depo-Lupron, lmplanon), barrier methods (such as condom or diaphragm), an intrauterine device (IUD), abstinence from sex. * Any significant history of any treatment nonadherence or any other medical condition that, in the investigator's opinion, would confound the results of the study or put the participant at undue risk * Subjects who have any of the following laboratory values: eGFR \<30 ml/min/1.73m2 ; Hemoglobin \<8.0 g/dL; Platelets \<50,000 cells/uL; Absolute neutrophil count \<1,000 cells/uL; Total bilirubin \>2.5 x upper limit of normal; Alanine aminotransferase (ALT) \>5 x upper limit of normal; Aspartate aminotransferase (AST)\] \>5 x upper limit of normal; CMV IgG negative in donor or positive in recipient
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
2 sites. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Massachusetts General Hospital
RECRUITINGBoston, Massachusetts, 02114, United States
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University of Texas Southwestern
RECRUITINGDallas, Texas, 75390, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Could removing catheters sooner after kidney transplant cut infections?
- Can a vaccine shield transplant patients from shingles?
- Can immune cells predict herpesvirus danger in transplant patients?
- Can a helping hand ease the burden of pediatric liver transplants?
- Can a helping hand ease the leap to adult transplant care?
- Can a single drug dose forecast transplant kidney health?