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Trial · NCT05011058

An Open-Label Phase 2 Trial of Nanatinostat Plus Valganciclovir in Patients With EBV+ Relapsed/Refractory Lymphomas

NCT05011058, Phase 2, Terminated, Viracta Therapeutics, Inc.; results first posted 2025-07-28

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. An Open-Label Phase 2 Trial of Nanatinostat Plus Valganciclovir in Patients With EBV+ Relapsed/Refractory Lymphomas. Trials, record NCT05011058. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT05011058

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Trial

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

Title
An Open-Label Phase 2 Trial of Nanatinostat Plus Valganciclovir in Patients With EBV+ Relapsed/Refractory Lymphomas
NCT number
NCT05011058
Status
Terminated
Phases
Phase 2
Enrollment
102 participants, actual
Lead sponsor
Viracta Therapeutics, Inc.
Conditions
Epstein-Barr Virus Associated Lymphoma, EBV-Positive DLBCL, NOS, EBV-Related Non-Hodgkin Lymphoma, EBV Related PTCL, NOS, EBV-Related Hodgkin Lymphoma, EBV-Related PTLD, EBV-Related Lymphoproliferative Disorder
Interventions
Nanatinostat in combination with valganciclovir
First posted
2021-08-18
Last updated
2025-07-28
Results first posted
2025-07-28
Limitations and caveats
The study was terminated prematurely.

Source ClinicalTrials.gov

Registered outcomes13

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

ListOutcomeTime frameDescription
PrimaryObjective Response Rate (ORR)Up to approximately 2 years
Number (percentage) of patients with a best overall complete response (CR) or partial response (PR) according to the 2007 International Working Group (IWG) criteria, where CR included complete disappearance of all detectable clinical evidence of disease and disease-related symptoms if present before therapy with all lymph nodes and nodal masses having regressed on computed tomography to normal size, and PR included at least a 50% decrease in sum of the product of the diameters (SPD) of up to six of the largest dominant nodes or nodal masses, no increase should have been observed in the size of other nodes, liver, or spleen, and splenic and hepatic nodules must have regressed by ≥ 50% in their SPD or, for single nodules, in the greatest transverse diameter.
SecondaryDuration of Response (DOR)Up to approximately 2 years
Interval of time from date of first observed complete or partial response per 2007 International Working Group (IWG) criteria to the date of documented disease progression or death due to any cause, where disease progression is defined by 2007 IWG criteria as any new lesion or increase by ≥ 50% of previously involved sites from nadir. DOR was censored at the time of study withdrawal for hematopoietic stem cell transplant, or at the time of study termination, whichever was earlier, for patients whose disease was still in response.
SecondaryTime to Next Anti-Lymphoma Treatment (TTNLT)Up to approximately 3 yearsInterval of time from the start of study drug treatment to the date of next anti-lymphoma treatment (including chemotherapy, radiotherapy, radioimmunotherapy, or immunotherapy).
SecondaryTime to Progression (TTP)Up to approximately 3 years
Interval of time from the start of study drug treatment to the date of disease progression, where disease progression is defined by 2007 IWG criteria as any new lesion or increase by ≥ 50% of previously involved sites from nadir. TTP was censored at the time of study withdrawal for hematopoietic stem cell transplant, at the time of study treatment withdrawal (or at the time of crossover from monotherapy to combination therapy), or at the time of study termination, whichever was earliest, for patients without reported disease progression.
SecondaryProgression-Free Survival (PFS)Up to approximately 3 years
Interval of time from the start of study drug treatment to the date of first documented disease progression (defined by 2007 IWG criteria as any new lesion or increase by ≥ 50% of previously involved sites from nadir), initiation of new antineoplastic therapy, or death from any cause, whichever occurred first. PFS was censored at the time of study withdrawal for hematopoietic stem cell transplant, at the time of study treatment withdrawal (or at the time of crossover from monotherapy to combination therapy), or at the time of study termination, whichever was earliest, for patients without reported disease progression or death.
SecondaryOverall Survival (OS)Up to approximately 3 years
Interval of time from the start of study drug treatment to the date of death for any reason. OS was censored at the time of study withdrawal or study termination, whichever was earlier, for patients without reported death.
SecondaryNumber (Percentage) of Participants With Adverse Events (AEs)Up to approximately 2 years
Number (percentage) of patients experiencing at least one treatment-emergent adverse event, defined as those untoward medical events with onset after the first dose of study drug or existing events that worsened after the first dose during the study
SecondaryPharmacokinetic (PK) Parameter - Time to Maximum Plasma Concentration [Tmax]Cycle 1 Day 1 and Cycle 6 Day 1 at pre-dose and 1, 2, 4, and 6 hours post-dose (each cycle was 28 days)Defined as the time required to reach peak plasma concentration \[Cmax\] after study drug administration
SecondaryPharmacokinetic (PK) Parameter - Maximum Plasma Concentration [Cmax]Cycle 1 Day 1 and Cycle 6 Day 1 at pre-dose and 1, 2, 4, and 6 hours post-dose (each cycle was 28 days)Defined as the peak plasma concentration \[Cmax\] after study drug administration
SecondaryPharmacokinetic Parameter - Area Under the Plasma Concentration-Time Curve [AUC0-t]Cycle 1 Day 1 and Cycle 6 Day 1 at pre-dose and 1, 2, 4, and 6 hours post-dose (each cycle was 28 days)Defined as the area under the concentration-time curve from time 0 to the last measurable plasma concentration

Outcomes13

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

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYObjective Response Rate (ORR)Up to approximately 2 years
Intent-to-Treat Analysis Set, defined as all patients who were enrolled into the trial regardless of whether or not they received study treatment.~The study was not designed to make formal statistical comparisons of ORRs between cohorts.
ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYDuration of Response (DOR)Up to approximately 2 yearsPatients who achieved a CR or PR. The study was not designed to make formal statistical comparisons of DOR between cohorts.daysMEDIAN
SECONDARYTime to Next Anti-Lymphoma Treatment (TTNLT)Up to approximately 3 years
The clinical trial was terminated before the outcome measure data were collected (data export from the clinical database just prior to study termination retrieved from data manager files contained data listings to support determinations of other secondary efficacy outcome measures but not post-treatment anticancer therapy regimen dates to support TTNLT determination, and investigation into the cause of these uncollected data was preempted by sponsor company closure soon after study termination).
SECONDARYTime to Progression (TTP)Up to approximately 3 years
Intent-to-Treat Analysis Set, defined as all patients who were enrolled into the trial regardless of whether or not they received study treatment.~The study was not designed to make formal statistical comparisons of TTP between cohorts.
daysMEDIAN
SECONDARYProgression-Free Survival (PFS)Up to approximately 3 years
Intent-to-Treat Analysis Set, defined as all patients who were enrolled into the trial regardless of whether or not they received study treatment.~The study was not designed to make formal statistical comparisons of PFS between cohorts.
daysMEDIAN
SECONDARYOverall Survival (OS)Up to approximately 3 years
Intent-to-Treat Analysis Set, defined as all patients who were enrolled into the trial regardless of whether or not they received study treatment.~The study was not designed to make formal statistical comparisons of OS between cohorts.
daysMEDIAN
SECONDARYNumber (Percentage) of Participants With Adverse Events (AEs)Up to approximately 2 years
Safety Analysis Set, defined as all enrolled patients who received at least 1 dose of study treatment.~The study was not designed to make formal statistical comparisons of AE numbers (percentages) between cohorts.
ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYPharmacokinetic (PK) Parameter - Time to Maximum Plasma Concentration [Tmax]Cycle 1 Day 1 and Cycle 6 Day 1 at pre-dose and 1, 2, 4, and 6 hours post-dose (each cycle was 28 days)
Defined as all patients (pts) who received at least 1 dose of study drug on Cycle 1 Day 1 and had at least 1 valid PK concentration. Tmax data were previously generated for subset of 50 pts, 4 of whom reached Cycle 6 at time of analysis. As prespecified by the analysis plan, combination therapy cohorts were combined since Tmax for small molecules should not be affected by lymphoma subtype. PK samples from remaining pts were not tested due to sponsor company closure soon after study termination.
hoursMEDIAN
SECONDARYPharmacokinetic (PK) Parameter - Maximum Plasma Concentration [Cmax]Cycle 1 Day 1 and Cycle 6 Day 1 at pre-dose and 1, 2, 4, and 6 hours post-dose (each cycle was 28 days)
Defined as all patients (pts) who received at least 1 dose of study drug on Cycle 1 Day 1 and had at least 1 valid PK concentration. Cmax data were previously generated for subset of 50 pts, 4 of whom reached Cycle 6 at time of analysis. As prespecified by the analysis plan, combination therapy cohorts were combined since Cmax for small molecules should not be affected by lymphoma subtype. PK samples from remaining pts were not tested due to sponsor company closure soon after study termination.
ng/mLGEOMETRIC_MEAN
SECONDARYPharmacokinetic Parameter - Area Under the Plasma Concentration-Time Curve [AUC0-t]Cycle 1 Day 1 and Cycle 6 Day 1 at pre-dose and 1, 2, 4, and 6 hours post-dose (each cycle was 28 days)
Defined as all patients (pts) who received at least 1 dose of study drug on Cycle 1 Day 1 and had at least 1 valid PK concentration. AUC0-t data were previously generated for subset of 50 pts, 4 of whom reached Cycle 6 at time of analysis. As prespecified by the analysis plan, combination therapy cohorts were combined since AUC for small molecules should not be affected by lymphoma subtype. PK samples from remaining pts were not tested due to sponsor company closure soon after study termination.
ng*h/mLGEOMETRIC_MEAN

Results by group95

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

OutcomeGroupCategoryValueSpreadUnits
Objective Response Rate (ORR)Diffuse Large B-Cell Lymphoma0Participants
Objective Response Rate (ORR)Extranodal Natural Killer/T-Cell Lymphoma0Participants
Objective Response Rate (ORR)Peripheral T-Cell Lymphoma (Combination Therapy)11Participants
Objective Response Rate (ORR)Peripheral T-Cell Lymphoma (Monotherapy)1Participants
Objective Response Rate (ORR)Hodgkin Lymphoma0Participants
Objective Response Rate (ORR)Post-Transplant Lymphoproliferative Disorders0Participants
Objective Response Rate (ORR)Human Immunodeficiency Virus-Associated Lymphomas0Participants
Objective Response Rate (ORR)Other EBV-Positive Lymphomas2Participants
Duration of Response (DOR)Peripheral T-Cell Lymphoma (Combination Therapy)98Full Range 29 to 340days
Duration of Response (DOR)Peripheral T-Cell Lymphoma (Monotherapy)43Full Range 43 to 43days

Participant flow56

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

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDDiffuse Large B-Cell Lymphoma9
Overall StudySTARTEDExtranodal Natural Killer/T-Cell Lymphoma11
Overall StudySTARTEDPeripheral T-Cell Lymphoma (Combination Therapy)38
Overall StudySTARTEDPeripheral T-Cell Lymphoma (Monotherapy)10
Overall StudySTARTEDHodgkin Lymphoma8
Overall StudySTARTEDPost-Transplant Lymphoproliferative Disorders3
Overall StudySTARTEDHuman Immunodeficiency Virus-Associated Lymphomas3
Overall StudySTARTEDOther EBV-Positive Lymphomas20
Overall StudyStage 1Diffuse Large B-Cell Lymphoma9
Overall StudyStage 1Extranodal Natural Killer/T-Cell Lymphoma11

Adverse events756

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

TypeEventOrgan systemGroupAffectedAt riskEvents
otherAnaemiaBlood and lymphatic system disordersDiffuse Large B-Cell Lymphoma29
otherAnaemiaBlood and lymphatic system disordersExtranodal Natural Killer/T-Cell Lymphoma411
otherAnaemiaBlood and lymphatic system disordersPeripheral T-Cell Lymphoma (Combination Therapy)738
otherAnaemiaBlood and lymphatic system disordersPeripheral T-Cell Lymphoma (Monotherapy)510
otherAnaemiaBlood and lymphatic system disordersPeripheral T-Cell Lymphoma (Crossover)35
otherAnaemiaBlood and lymphatic system disordersHodgkin Lymphoma48
otherAnaemiaBlood and lymphatic system disordersPost-Transplant Lymphoproliferative Disorders03
otherAnaemiaBlood and lymphatic system disordersHuman Immunodeficiency Virus-Associated Lymphomas23
otherAnaemiaBlood and lymphatic system disordersOther EBV-Positive Lymphomas720
otherNauseaGastrointestinal disordersDiffuse Large B-Cell Lymphoma19

Adverse event totals27

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityDiffuse Large B-Cell Lymphoma39
Total, all-cause mortalityExtranodal Natural Killer/T-Cell Lymphoma911
Total, all-cause mortalityPeripheral T-Cell Lymphoma (Combination Therapy)938
Total, all-cause mortalityPeripheral T-Cell Lymphoma (Monotherapy)410
Total, all-cause mortalityPeripheral T-Cell Lymphoma (Crossover)25
Total, all-cause mortalityHodgkin Lymphoma38
Total, all-cause mortalityPost-Transplant Lymphoproliferative Disorders13
Total, all-cause mortalityHuman Immunodeficiency Virus-Associated Lymphomas13
Total, all-cause mortalityOther EBV-Positive Lymphomas820
Total, other adverse eventsDiffuse Large B-Cell Lymphoma99

Papers2

The papers the trial lists on ClinicalTrials.gov.

PMIDListed asSource
17242396BACKGROUNDPubMed
37530631DERIVEDPubMed

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/NCT05011058

GET https://conductscience.org/api/trials/v1/NCT05011058/results?page=2