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Trial · NCT04933968

Study of ALVR106 in Patients With Respiratory Viral Infections After Hematopoietic Cell and Solid Organ Transplant

NCT04933968, Phase 1, Phase 2, Terminated, AlloVir; results first posted 2024-06-06

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Study of ALVR106 in Patients With Respiratory Viral Infections After Hematopoietic Cell and Solid Organ Transplant. Trials, record NCT04933968. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT04933968

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
Study of ALVR106 in Patients With Respiratory Viral Infections After Hematopoietic Cell and Solid Organ Transplant
NCT number
NCT04933968
Status
Terminated
Phases
Phase 1, Phase 2
Enrollment
17 participants, actual
Lead sponsor
AlloVir
Conditions
Respiratory Tract Viral Infections, Human Metapneumovirus (hMPV) Infection, Parainfluenza (PIV) Infection, Respiratory Syncytial Viral (RSV) Infection, Influenza Infection
Interventions
ALVR106, Placebo
First posted
2021-06-22
Last updated
2024-06-06
Results first posted
2024-06-06
Limitations and caveats
Results are included for Part A only as no participants were enrolled into Part B due to early study termination.

Source ClinicalTrials.gov

Registered outcomes6

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryNumber of Participants With Treatment-emergent Adverse Events (TEAEs) (Part A)Day 1 up to 12 months
A TEAE was defined as an adverse event (AE) with a start date and time on or after the first dose of study treatment. A serious AE (SAE) was an AE that met at least one of the following serious criteria: fatal, life-threatening, requires in-patient hospitalization or prolongation of existing hospitalization; resulted in persistent or significant disability/incapacity; was a congenital anomaly/birth defect; or other important medical event. TEAEs of special interest (AESI) included new/worsening graft versus host disease, graft failure or rejection, cytokine release syndrome, infusion related reactions, new/worsening pneumonitis, and progressive dyspnea. Treatment-related refers to the assessment of a relationship between study treatment and the event by the investigator.
PrimaryChange in Viral Load From Baseline to Day 28 (Part B)Baseline and Day 28 (Part B)Change from Baseline in viral load as measured by quantitative PCR of nasal swab
SecondaryIdentify the Recommended Phase 2 Dose (RP2D) (Part A)Day 1 up to 12 monthsThe RP2D was to be determined after the maximum tolerated dose was reached in Part A.
SecondaryChange in Viral Load Cycle Threshold From Baseline to Day 28 (Part A)Baseline and Day 28
Viral load was measured by quantitative polymerase chain reaction (PCR) of nasal swab specimens. The cycle threshold value categorizes the concentration of viral genetic material in a participant's swab specimen, and the cycle threshold value represents the number of PCR cycles required to amplify the viral genetic material (as measured by fluorescence) to a detectable level that is distinguishable from baseline fluorescence, providing an estimate of viral load. Lower cycle threshold values indicate higher viral load and high values indicate lower viral load. A positive change from baseline indicates a decrease in the viral load. The baseline measurement was from a pre-dose nasal swab.
SecondaryNumber of Participants With Treatment-emergent Adverse Events (TEAEs) (Part B)Day 1 up to 12 months
SecondaryPercentage Reduction in Viral Load From Baseline to Month 6 (Part B)Day 1 and Month 6

Outcomes6

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYNumber of Participants With Treatment-emergent Adverse Events (TEAEs) (Part A)Day 1 up to 12 monthsThe safety population included all randomized participants who received any amount of ALVR106 or placebo.ParticipantsCOUNT_OF_PARTICIPANTS
PRIMARYChange in Viral Load From Baseline to Day 28 (Part B)Baseline and Day 28 (Part B)No participants were enrolled into Part B due to the early termination of the study.
SECONDARYIdentify the Recommended Phase 2 Dose (RP2D) (Part A)Day 1 up to 12 monthsAll randomized participants who received ALVR106 in Part A.x 10^5 cells/kgNUMBER
SECONDARYChange in Viral Load Cycle Threshold From Baseline to Day 28 (Part A)Baseline and Day 28
The modified intent-to-treat population included all randomized participants who received any amount of ALVR106 or placebo and had confirmed virologic infection of interest at baseline (detectable viral load). Participants with baseline and Day 28 available data are included.
cyclesMEAN
SECONDARYNumber of Participants With Treatment-emergent Adverse Events (TEAEs) (Part B)Day 1 up to 12 monthsNo participants were enrolled into Part B due to the early termination of the study.
SECONDARYPercentage Reduction in Viral Load From Baseline to Month 6 (Part B)Day 1 and Month 6No participants were enrolled into Part B due to the early termination of the study.

Results by group46

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
Number of Participants With Treatment-emergent Adverse Events (TEAEs) (Part A)Part A: PlaceboAny TEAE2Participants
Number of Participants With Treatment-emergent Adverse Events (TEAEs) (Part A)Part A ALVR106 Cohort 1: Dose AAny TEAE3Participants
Number of Participants With Treatment-emergent Adverse Events (TEAEs) (Part A)Part A ALVR106 Cohort 2: Dose BAny TEAE4Participants
Number of Participants With Treatment-emergent Adverse Events (TEAEs) (Part A)Part A ALVR106 Cohort 3: Dose CAny TEAE4Participants
Number of Participants With Treatment-emergent Adverse Events (TEAEs) (Part A)Part A ALVR106 Cohort 4: Dose DAny TEAE3Participants
Number of Participants With Treatment-emergent Adverse Events (TEAEs) (Part A)Part A: PlaceboAny treatment-related TEAE2Participants
Number of Participants With Treatment-emergent Adverse Events (TEAEs) (Part A)Part A ALVR106 Cohort 1: Dose AAny treatment-related TEAE1Participants
Number of Participants With Treatment-emergent Adverse Events (TEAEs) (Part A)Part A ALVR106 Cohort 2: Dose BAny treatment-related TEAE0Participants
Number of Participants With Treatment-emergent Adverse Events (TEAEs) (Part A)Part A ALVR106 Cohort 3: Dose CAny treatment-related TEAE0Participants
Number of Participants With Treatment-emergent Adverse Events (TEAEs) (Part A)Part A ALVR106 Cohort 4: Dose DAny treatment-related TEAE0Participants

Participant flow18

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDPart A: Placebo3
Overall StudySTARTEDPart A ALVR106 Cohort 1: Dose A3
Overall StudySTARTEDPart A ALVR106 Cohort 2: Dose B4
Overall StudySTARTEDPart A ALVR106 Cohort 3: Dose C4
Overall StudySTARTEDPart A ALVR106 Cohort 4: Dose D3
Overall StudySTARTEDPart B Expansion Cohort0
Overall StudyCOMPLETEDPart A: Placebo0
Overall StudyCOMPLETEDPart A ALVR106 Cohort 1: Dose A0
Overall StudyCOMPLETEDPart A ALVR106 Cohort 2: Dose B0
Overall StudyCOMPLETEDPart A ALVR106 Cohort 3: Dose C0

Adverse events615

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherCOVID-19Infections and infestationsPart A: Placebo12
otherCOVID-19Infections and infestationsPart A ALVR106 Cohort 1: Dose A03
otherCOVID-19Infections and infestationsPart A ALVR106 Cohort 2: Dose B34
otherCOVID-19Infections and infestationsPart A ALVR106 Cohort 3: Dose C04
otherCOVID-19Infections and infestationsPart A ALVR106 Cohort 4: Dose D03
otherSepsisInfections and infestationsPart A: Placebo02
otherSepsisInfections and infestationsPart A ALVR106 Cohort 1: Dose A03
otherSepsisInfections and infestationsPart A ALVR106 Cohort 2: Dose B04
otherSepsisInfections and infestationsPart A ALVR106 Cohort 3: Dose C14
otherSepsisInfections and infestationsPart A ALVR106 Cohort 4: Dose D03

Adverse event totals15

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityPart A: Placebo02
Total, all-cause mortalityPart A ALVR106 Cohort 1: Dose A03
Total, all-cause mortalityPart A ALVR106 Cohort 2: Dose B24
Total, all-cause mortalityPart A ALVR106 Cohort 3: Dose C24
Total, all-cause mortalityPart A ALVR106 Cohort 4: Dose D03
Total, other adverse eventsPart A: Placebo22
Total, other adverse eventsPart A ALVR106 Cohort 1: Dose A33
Total, other adverse eventsPart A ALVR106 Cohort 2: Dose B44
Total, other adverse eventsPart A ALVR106 Cohort 3: Dose C44
Total, other adverse eventsPart A ALVR106 Cohort 4: Dose D33

Papers2

The papers the trial lists on ClinicalTrials.gov.

PMIDListed asSource
31004020BACKGROUNDPubMed
37323051DERIVEDPubMed

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons0

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

None in this release.

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/trials/v1/NCT04933968

GET https://conductscience.org/api/trials/v1/NCT04933968/results?page=2