A Phase 3 interventional study of Maribavir and Valganciclovir in Cytomegalovirus (CMV), sponsored by Shire. Completed at 129 sites in 23 countries. Open to participants aged 16 Years and older. Per ClinicalTrials.gov, last updated 2023-03-03.
Sponsored by Shire · Phase 3, Interventional, and Treatment
This study is about treatment options for cytomegalovirus infections in people who have received stem cell transplants. The main aim of the study is to check if the cytomegalovirus infection can no longer be detected after treatment with marivabir or valganciclovir.
Participants will take 2 tablets of marivabir or valganciclovir and 2 tablets of placebo twice a day for 8 weeks. A placebo will look like marivabir or valganciclovir but will not have any medicine in it.
After treatment, each participant will be followed up for up to 12 weeks.
Participants will visit their study clinic up to 18 times during the study.
359 studies on the registry are indexed under Cytomegalovirus Infections; 59 are open to participants now.
This study's enrollment of 553 is above the median of 60 across 233 interventional studies indexed under Cytomegalovirus Infections.
Browse Cytomegalovirus Infections studies →Shire is the lead sponsor of 346 studies on the registry; 2 are open to participants now.
Of its 47 completed or terminated interventional studies of FDA-regulated products, 47 (100%) have results posted.
Counted across the registry records on this site, refreshed daily.
Have a documented asymptomatic CMV infection, with a screening value of CMV DNA >=1365 International Units per millilitre (IU/mL) to less than or equal to (\<=) 273000 IU/mL in whole blood or >=455 IU/mL to \<=91000 IU/mL in plasma in 2 consecutive assessments, separated by at least 1 day, as determined by local or central specialty laboratory quantitative polymerase chain reaction (qPCR) or comparable quantitative CMV DNA results. Both samples should be taken within 14 days prior to randomization with second sample obtained within 5 days prior to randomization. Same laboratory and same sample type (whole blood or plasma) should be used for these assessments. Asymptomatic CMV infection is defined as an infection that does not present with tissue invasive CMV disease, as assessed by the investigator. Participants with CMV DNA less than (\<) 910 and >=455 IU/mL in plasma or \<2730 and >=1365 IU/mL in whole blood will also need to meet at least 1 of the following criteria for high-risk CMV infection to be eligible:
Have all of the following results as part of screening laboratory assessments (results from either the central laboratory or a local laboratory can be used for qualification):
Exclusion Criteria:
Note: Participants who may be receiving leflunomide must discontinue the use at least 14 days prior to randomization at Visit 2/Day 0 and the first dose of study treatment. Participants receiving letermovir must discontinue use 3 days prior to first dose of study treatment. Participants receiving artesunate must discontinue the use prior to the first dose of study treatment.
Participants received 900 milligrams (mg) of valganciclovir along with a placebo matched to maribavir, twice daily (BID) orally for 8 weeks. Valganciclovir dose was allowed to be adjusted to 450 mg BID or 450 mg QD based on renal function impairment assessed at baseline or development of neutropenia during the study.
Drug: Valganciclovir · Other: Placebo
Participants received 400 mg of maribavir along with a placebo matched to valganciclovir, BID orally for 8 weeks.
Drug: Maribavir · Other: Placebo
Participants will receive 400 mg of maribavir BID orally.
Participants will receive valganciclovir tablets orally.
Participants will receive placebo tablets matched to either maribavir or valganciclovir.
Number of Participants Who Achieved Confirmed Clearance of Plasma Cytomegalovirus (CMV) Deoxyribose Nucleic Acid (DNA) at the End of Study Week 8
Confirmed CMV viremia clearance is defined as plasma CMV DNA concentrations less than lower limit of quantification (LLOQ; i.e. \<137 International units per milliliter \[IU/mL\]), when assessed by COBAS® AmpliPrep/COBAS® TaqMan® CMV Test in 2 consecutive post baseline samples separated by at least 5 days. To be considered a responder for the primary endpoint, the participant must have received exclusively study-assigned treatment (regardless of whether study-assigned treatment was completed).
Time frame: Week 8
Number of Participants Who Achieved Confirmed CMV Viremia Clearance and CMV Infection Symptom Control at the End of Week 8, Followed by Maintenance of Treatment Effect at Week 16
Confirmed CMV viremia clearance is defined as plasma CMV DNA concentrations less than lower limit of quantification (LLOQ; i.e. \<137 International units per milliliter \[IU/mL\]), when assessed by COBAS® AmpliPrep/COBAS® TaqMan® CMV Test in 2 consecutive post baseline samples separated by at least 5 days. To be considered a responder for this key secondary endpoint, the participant must have received exclusively study-assigned treatment (regardless of whether study-assigned treatment was completed). CMV Infection Symptom Control is defined as no new clinical findings of CMV tissue invasive disease. Maintenance of Treatment Effect is defined as maintaining confirmed CMV viremia clearance and CMV infection symptom control through Week 16.
Time frame: Week 8 up to Week 16
Number of Participants Who Achieved Confirmed Clearance of Plasma CMV DNA (CMV Viremia Clearance) at Week 8 After Receiving 8 Weeks of Study Assigned Treatment
Confirmed CMV viremia clearance is defined as plasma CMV DNA concentrations less than lower limit of quantification (LLOQ; i.e. \<137 International units per milliliter \[IU/mL\]), when assessed by COBAS® AmpliPrep/COBAS® TaqMan® CMV Test in 2 consecutive post baseline samples separated by at least 5 days. To be considered a responder for this secondary endpoint, the participant must have received exclusively study-assigned treatment for 8 weeks. Participants who discontinued treatment early were non-responders for this endpoint.
Time frame: Week 8
Number of Participants Who Achieved Confirmed CMV Viremia Clearance After Receiving 8 Weeks of Study-assigned Treatment Through Weeks 12, 16 and 20
Confirmed CMV viremia clearance is defined as plasma CMV DNA concentrations less than lower limit of quantification (LLOQ; i.e. \<137 International units per milliliter \[IU/mL\]), when assessed by COBAS® AmpliPrep/COBAS® TaqMan® CMV Test in 2 consecutive post baseline samples separated by at least 5 days. To be considered a responder for this secondary endpoint, the participant must have received exclusively study-assigned treatment for 8 weeks.
Time frame: Week 8 through Weeks 12, 16 and 20
Number of Participants Who Maintained Confirmed CMV Viremia Clearance at Week 8 After Receiving Study-Assigned Treatment Through Study Weeks 12 and 20 Regardless of Whether Study Assigned Treatment Was Completed
Confirmed CMV viremia clearance is defined as plasma CMV DNA concentrations less than lower limit of quantification (LLOQ; i.e. \<137 International units per milliliter \[IU/mL\]), when assessed by COBAS® AmpliPrep/COBAS® TaqMan® CMV Test in 2 consecutive post baseline samples separated by at least 5 days. To be considered a responder for this secondary endpoint, the participant must have received exclusively study-assigned treatment (regardless of whether the 8-week study-assigned treatment was completed or discontinued early) and had no symptoms of tissue invasive CMV disease at Week 8, Week 8 through Week 12, and Week 8 through Week 20, respectively.
Time frame: Week 8 through Weeks 12 and 20
Number of Participants With Confirmed Recurrence of Viremia During First 8 Weeks of the Study
Recurrence of CMV viremia is defined as plasma CMV DNA concentration greater than or equal to (\>=) lower limit of quantification (LLOQ, i.e. \>=137 International units per milliliter \[IU/mL\]) when assessed by COBAS® AmpliPrep/COBAS® TaqMan® CMV Test in 2 consecutive plasma samples at least 5 days apart, after being unquantifiable (\<LLOQ, i.e. \<137 IU/mL) for at least 5 days in 2 consecutive samples during the first 8 weeks of the study, during the 12 weeks of the follow up study phase, and at any time during the study.
Time frame: Up to Week 8
Number of Participants With Confirmed Recurrence of Viremia During the Follow-up Period
Recurrence of CMV viremia is defined as plasma CMV DNA concentration greater than or equal to (\>=) LLOQ when assessed by COBAS® AmpliPrep/COBAS® TaqMan® CMV Test in 2 consecutive plasma samples at least 5 days apart, after being unquantifiable (\<LLOQ) for at least 5 days in 2 consecutive samples during the first 8 weeks of the study, during the 12 weeks of the follow up study phase, and at any time during the study.
Time frame: From Week 9 up to Week 20
Number of Participants With Confirmed Recurrence of Viremia at Any Time During the Study
Recurrence of CMV viremia is defined as plasma CMV DNA concentration greater than or equal to (\>=) LLOQ when assessed by COBAS® AmpliPrep/COBAS® TaqMan® CMV Test in 2 consecutive plasma samples at least 5 days apart, after being unquantifiable (\<LLOQ) for at least 5 days in 2 consecutive samples during the first 8 weeks of the study, during the 12 weeks of the follow up study phase, and at any time during the study.
Time frame: Up to Week 20
Number of Participants With Confirmed Recurrence of Viremia While on Study Treatment and Off Treatment
Recurrence of CMV viremia is defined as plasma CMV DNA concentration greater than or equal to (\>=) LLOQ when assessed by COBAS® AmpliPrep/COBAS® TaqMan® CMV Test in 2 consecutive plasma samples at least 5 days apart, after being unquantifiable (\<LLOQ) for at least 5 days in 2 consecutive samples during the first 8 weeks of the study, during the 12 weeks of the follow up study phase, and at any time during the study.
Time frame: Baseline up to Week 20
Number of Participants With Grade 3 or 4 (Shift From Baseline Grade <3) and Grade 4 Neutropenia (Shift From Baseline Grade <4) While on Study Treatment
Grade 3 and grade 4 neutropenia are defined as absolute neutrophil count (ANC) \<1000 per cubic millimeter (/mm\^3) and ANC \<500/mm\^3 respectively. Incidence of Grade 3 or 4 neutropenia represents the percentage of participants with Grade \<3 (or missing) neutropenia at baseline, but Grade 3 or 4 while on study treatment. Incidence of Grade 4 neutropenia represents the number of participants with Grade \<4 (or missing) neutropenia at baseline, but Grade 4 while on study treatment.
Time frame: From start of study drug to end of study drug + 1 day (up to approximately Week 8)
Number of Participants With Treatment-Emergent Adverse Events During the On-Treatment Period
An adverse event (AE) is any untoward medical occurrence in a clinical investigation participants administered a pharmaceutical product and that does not necessarily have a causal relationship with this treatment. An AE that has a start date on or after the first dose of study treatment, or that has a start date before the date of first dose of study treatment but increases in severity after the first dose of study treatment, will be considered a treatment-emergent AE (TEAE).
Time frame: From the start of the study treatment to 7 days after the last dose of study treatment (up to approximately Week 9)
Predose Concentration (Cmin) of Maribavir
The primary plasma maribavir concentration dataset (primary concentration dataset) includes all plasma maribavir concentrations. Missing PK sampling times are imputed according to the sparse sampling schedule in primary concentration dataset.
Time frame: Weeks 1, 4, and 8: pre-morning dose
Area Under the Concentration-Time Curve Over the 12-Hour Dosing Interval at Steady State AUC(0-tau) of Maribavir for Adolescent Participants Only
Time frame: Pre-morning dose, 1, 2, 3, 4, 6, 8, and 12 hours post-morning dose of Week 1
Maximum Observed Plasma Concentration (Cmax) of Maribavir for Adolescent Participants Only
Time frame: Pre-morning dose, 1, 2, 3, 4, 6, 8, and 12 hours post-morning dose of Week 1
Time When Maximum Concentration is Observed (Tmax) of Maribavir for Adolescent Participants Only
Time frame: Pre-morning dose, 1, 2, 3, 4, 6, 8, and 12 hours post-morning dose of Week 1
Apparent Oral Clearance (CL/F) of Maribavir for Adolescent Participants Only
Time frame: Pre-morning dose, 1, 2, 3, 4, 6, 8, and 12 hours post-morning dose of Week 1
Apparent Volume of Distribution (Vz/F) of Maribavir for Adolescent Participants Only
Time frame: Pre-morning dose, 1, 2, 3, 4, 6, 8, and 12 hours post-morning dose of Week 1
Number of Participants Developing Resistance
Resistance was defined as the presence of any CMV resistance-associated amino acid substitution that has been documented (or suspected) to be associated with reduced susceptibility to conventional anti-CMV therapies (ganciclovir/valganciclovir, foscarnet, and cidofovir) or maribavir. Genotypic resistance analyses were restricted to sequence variants that were known or suspected to be associated with resistance to conventional anti-CMV therapies or maribavir as of January 21, 2022. A participant was categorized as having developed resistance if the central lab genotyping results indicated the presence of one or more treatment-emergent resistance mutations.
Time frame: From start of study drug up to end of the study (up to Week 20)
Participants were randomized at 97 sites in United States,Spain,France,Germany,United Kingdom,Belgium,China,Italy,Israel,Australia,Canada,Singapore,Croatia, Czech Republic,Greece,Hungary,Korea,New Zealand,Poland,Russia,Switzerland, and Turkey from 14 April 2017(first participant first visit) to 01 July 2022(last participant last visit).
| Milestone | Valganciclovir 900 mg BID | Maribavir 400 mg BID |
|---|---|---|
| Started | 277 | 276 |
| Treated participants | 274 | 273 |
| Participants received 8 weeks treatment | 140 | 179 |
| Completed | 217 | 215 |
| Not completed | 60 | 61 |
| Withdrew: Withdrawn consent | 20 | 12 |
| Withdrew: Death | 18 | 31 |
| Withdrew: Adverse event | 13 | 10 |
| Withdrew: Noncompliance | 5 | 2 |
| Withdrew: Reason not specified | 4 | 6 |
Confirmed CMV viremia clearance is defined as plasma CMV DNA concentrations less than lower limit of quantification (LLOQ; i.e. \<137 International units per milliliter \[IU/mL\]), when assessed by COBAS® AmpliPrep/COBAS® TaqMan® CMV Test in 2 consecutive post baseline samples separated by at least 5 days. To be considered a responder for the primary endpoint, the participant must have received exclusively study-assigned treatment (regardless of whether study-assigned treatment was completed).
| Participants | Valganciclovir 900 mg BID | Maribavir 400 mg BID |
|---|---|---|
| Number of Participants Who Achieved Confirmed Clearance of Plasma Cytomegalovirus (CMV) Deoxyribose Nucleic Acid (DNA) at the End of Study Week 8 | 212 | 190 |
Confirmed CMV viremia clearance is defined as plasma CMV DNA concentrations less than lower limit of quantification (LLOQ; i.e. \<137 International units per milliliter \[IU/mL\]), when assessed by COBAS® AmpliPrep/COBAS® TaqMan® CMV Test in 2 consecutive post baseline samples separated by at least 5 days. To be considered a responder for this key secondary endpoint, the participant must have received exclusively study-assigned treatment (regardless of whether study-assigned treatment was completed). CMV Infection Symptom Control is defined as no new clinical findings of CMV tissue invasive disease. Maintenance of Treatment Effect is defined as maintaining confirmed CMV viremia clearance and CMV infection symptom control through Week 16.
| Participants | Valganciclovir 900 mg BID | Maribavir 400 mg BID |
|---|---|---|
| Number of Participants Who Achieved Confirmed CMV Viremia Clearance and CMV Infection Symptom Control at the End of Week 8, Followed by Maintenance of Treatment Effect at Week 16 | 133 | 144 |
Confirmed CMV viremia clearance is defined as plasma CMV DNA concentrations less than lower limit of quantification (LLOQ; i.e. \<137 International units per milliliter \[IU/mL\]), when assessed by COBAS® AmpliPrep/COBAS® TaqMan® CMV Test in 2 consecutive post baseline samples separated by at least 5 days. To be considered a responder for this secondary endpoint, the participant must have received exclusively study-assigned treatment for 8 weeks. Participants who discontinued treatment early were non-responders for this endpoint.
| Participants | Valganciclovir 900 mg BID | Maribavir 400 mg BID |
|---|---|---|
| Number of Participants Who Achieved Confirmed Clearance of Plasma CMV DNA (CMV Viremia Clearance) at Week 8 After Receiving 8 Weeks of Study Assigned Treatment | 137 | 158 |
Confirmed CMV viremia clearance is defined as plasma CMV DNA concentrations less than lower limit of quantification (LLOQ; i.e. \<137 International units per milliliter \[IU/mL\]), when assessed by COBAS® AmpliPrep/COBAS® TaqMan® CMV Test in 2 consecutive post baseline samples separated by at least 5 days. To be considered a responder for this secondary endpoint, the participant must have received exclusively study-assigned treatment for 8 weeks.
| Participants | Valganciclovir 900 mg BID | Maribavir 400 mg BID |
|---|---|---|
| Week 8 | 137 | 158 |
| Week 12 | 98 | 134 |
| Week 16 | 82 | 119 |
| Week 20 | 72 | 98 |
Confirmed CMV viremia clearance is defined as plasma CMV DNA concentrations less than lower limit of quantification (LLOQ; i.e. \<137 International units per milliliter \[IU/mL\]), when assessed by COBAS® AmpliPrep/COBAS® TaqMan® CMV Test in 2 consecutive post baseline samples separated by at least 5 days. To be considered a responder for this secondary endpoint, the participant must have received exclusively study-assigned treatment (regardless of whether the 8-week study-assigned treatment was completed or discontinued early) and had no symptoms of tissue invasive CMV disease at Week 8, Week 8 through Week 12, and Week 8 through Week 20, respectively.
| Participants | Valganciclovir 900 mg BID | Maribavir 400 mg BID |
|---|---|---|
| Week 8 | 211 | 190 |
| Week 12 | 157 | 162 |
| Week 20 | 116 | 118 |
Recurrence of CMV viremia is defined as plasma CMV DNA concentration greater than or equal to (\>=) lower limit of quantification (LLOQ, i.e. \>=137 International units per milliliter \[IU/mL\]) when assessed by COBAS® AmpliPrep/COBAS® TaqMan® CMV Test in 2 consecutive plasma samples at least 5 days apart, after being unquantifiable (\<LLOQ, i.e. \<137 IU/mL) for at least 5 days in 2 consecutive samples during the first 8 weeks of the study, during the 12 weeks of the follow up study phase, and at any time during the study.
| Participants | Valganciclovir 900 mg BID | Maribavir 400 mg BID |
|---|---|---|
| Number of Participants With Confirmed Recurrence of Viremia During First 8 Weeks of the Study | 6 | 16 |
Recurrence of CMV viremia is defined as plasma CMV DNA concentration greater than or equal to (\>=) LLOQ when assessed by COBAS® AmpliPrep/COBAS® TaqMan® CMV Test in 2 consecutive plasma samples at least 5 days apart, after being unquantifiable (\<LLOQ) for at least 5 days in 2 consecutive samples during the first 8 weeks of the study, during the 12 weeks of the follow up study phase, and at any time during the study.
| Participants | Valganciclovir 900 mg BID | Maribavir 400 mg BID |
|---|---|---|
| Number of Participants With Confirmed Recurrence of Viremia During the Follow-up Period | 47 | 27 |
Recurrence of CMV viremia is defined as plasma CMV DNA concentration greater than or equal to (\>=) LLOQ when assessed by COBAS® AmpliPrep/COBAS® TaqMan® CMV Test in 2 consecutive plasma samples at least 5 days apart, after being unquantifiable (\<LLOQ) for at least 5 days in 2 consecutive samples during the first 8 weeks of the study, during the 12 weeks of the follow up study phase, and at any time during the study.
| Participants | Valganciclovir 900 mg BID | Maribavir 400 mg BID |
|---|---|---|
| Number of Participants With Confirmed Recurrence of Viremia at Any Time During the Study | 53 | 43 |
Recurrence of CMV viremia is defined as plasma CMV DNA concentration greater than or equal to (\>=) LLOQ when assessed by COBAS® AmpliPrep/COBAS® TaqMan® CMV Test in 2 consecutive plasma samples at least 5 days apart, after being unquantifiable (\<LLOQ) for at least 5 days in 2 consecutive samples during the first 8 weeks of the study, during the 12 weeks of the follow up study phase, and at any time during the study.
| Participants | Valganciclovir 900 mg BID | Maribavir 400 mg BID |
|---|---|---|
| On Study Treatment | 0 | 14 |
| Off Study Treatment | 53 | 29 |
Grade 3 and grade 4 neutropenia are defined as absolute neutrophil count (ANC) \<1000 per cubic millimeter (/mm\^3) and ANC \<500/mm\^3 respectively. Incidence of Grade 3 or 4 neutropenia represents the percentage of participants with Grade \<3 (or missing) neutropenia at baseline, but Grade 3 or 4 while on study treatment. Incidence of Grade 4 neutropenia represents the number of participants with Grade \<4 (or missing) neutropenia at baseline, but Grade 4 while on study treatment.
| Participants | Valganciclovir 900 mg BID | Maribavir 400 mg BID |
|---|---|---|
| Grade 3 or Grade 4 Neutropenia | 137 (44.08 to 55.92) | 44 (11.76 to 20.48) |
| Grade 4 Neutropenia | 61 (17.34 to 27.19) | 9 (1.18 to 5.41) |
An adverse event (AE) is any untoward medical occurrence in a clinical investigation participants administered a pharmaceutical product and that does not necessarily have a causal relationship with this treatment. An AE that has a start date on or after the first dose of study treatment, or that has a start date before the date of first dose of study treatment but increases in severity after the first dose of study treatment, will be considered a treatment-emergent AE (TEAE).
| Participants | Valganciclovir 900 mg BID | Maribavir 400 mg BID |
|---|---|---|
| Number of Participants With Treatment-Emergent Adverse Events During the On-Treatment Period | 269 | 268 |
The primary plasma maribavir concentration dataset (primary concentration dataset) includes all plasma maribavir concentrations. Missing PK sampling times are imputed according to the sparse sampling schedule in primary concentration dataset.
| micrograms per milliliter (µg/mL) | Maribavir 400 mg BID |
|---|---|
| Week 1 | 9.17 ± 7.69 |
| Week 4 | 8.71 ± 9.20 |
| Week 8 | 7.02 ± 6.35 |
| hours (h)*μg/mL | Maribavir 400 mg BID |
|---|---|
| Area Under the Concentration-Time Curve Over the 12-Hour Dosing Interval at Steady State AUC(0-tau) of Maribavir for Adolescent Participants Only | 161 (161 to 161) |
| µg/mL | Maribavir 400 mg BID |
|---|---|
| Maximum Observed Plasma Concentration (Cmax) of Maribavir for Adolescent Participants Only | 22.0 (22.0 to 22.0) |
| hours (h) | Maribavir 400 mg BID |
|---|---|
| Time When Maximum Concentration is Observed (Tmax) of Maribavir for Adolescent Participants Only | 0.92 (0.92 to 0.92) |
| liters per hour (L/h) | Maribavir 400 mg BID |
|---|---|
| Apparent Oral Clearance (CL/F) of Maribavir for Adolescent Participants Only | 2.49 (2.49 to 2.49) |
| liters (L) | Maribavir 400 mg BID |
|---|---|
| Apparent Volume of Distribution (Vz/F) of Maribavir for Adolescent Participants Only | 18.3 (18.3 to 18.3) |
Resistance was defined as the presence of any CMV resistance-associated amino acid substitution that has been documented (or suspected) to be associated with reduced susceptibility to conventional anti-CMV therapies (ganciclovir/valganciclovir, foscarnet, and cidofovir) or maribavir. Genotypic resistance analyses were restricted to sequence variants that were known or suspected to be associated with resistance to conventional anti-CMV therapies or maribavir as of January 21, 2022. A participant was categorized as having developed resistance if the central lab genotyping results indicated the presence of one or more treatment-emergent resistance mutations.
| Participants | Valganciclovir 900 mg BID | Maribavir 400 mg BID |
|---|---|---|
| Number of Participants Developing Resistance | 8 | 24 |
Collected over All-cause mortality: From start of study drug up to end of the study (up to Week 20); Serious and Other Adverse Events: From the start of the study drug to 7 days after the last dose of study treatment (up to approximately Week 9). Non-serious events are listed at a 5% frequency threshold.
| Group | Deaths | Serious | Other |
|---|---|---|---|
| Valganciclovir 900 mg BID | 29/277 (10.5%) | 95/274 (34.7%) | 256/274 (93.4%) |
| Maribavir 400 mg BID | 37/276 (13.4%) | 88/273 (32.2%) | 245/273 (89.7%) |
| Event | Valganciclovir 900 mg BID | Maribavir 400 mg BID |
|---|---|---|
| PyrexiaGeneral disorders | 13/274 | 8/273 |
| Acute graft versus host disease in intestineImmune system disorders | 4/274 | 10/273 |
| Febrile neutropeniaBlood and lymphatic system disorders | 8/274 | 1/273 |
| DiarrhoeaGastrointestinal disorders | 6/274 | 4/273 |
| Cystitis haemorrhagicRenal and urinary disorders | 5/274 | 2/273 |
| Acute graft versus host disease in skinImmune system disorders | 1/274 | 4/273 |
| Thrombotic microangiopathyBlood and lymphatic system disorders | 0/274 | 4/273 |
| Cytomegalovirus viraemiaInfections and infestations | 4/274 | 1/273 |
| Cytomegalovirus infectionInfections and infestations | 3/274 | 3/273 |
| DyspnoeaRespiratory, thoracic and mediastinal disorders | 2/274 | 3/273 |
| Event | Valganciclovir 900 mg BID | Maribavir 400 mg BID |
|---|---|---|
| NeutropeniaBlood and lymphatic system disorders | 144/274 | 44/273 |
| NauseaGastrointestinal disorders | 64/274 | 74/273 |
| AnaemiaBlood and lymphatic system disorders | 49/274 | 62/273 |
| ThrombocytopeniaBlood and lymphatic system disorders | 62/274 | 31/273 |
| VomitingGastrointestinal disorders | 47/274 | 55/273 |
| DiarrhoeaGastrointestinal disorders | 44/274 | 50/273 |
| DysgeusiaNervous system disorders | 16/274 | 47/273 |
| Acute graft versus host disease in skinImmune system disorders | 32/274 | 46/273 |
| HeadacheNervous system disorders | 14/274 | 30/273 |
| Neutrophil count decreasedInvestigations | 29/274 | 13/273 |
Randomized set included all participants in the enrolled set for whom a randomization number had been assigned.
| Age, Continuous(years) | Valganciclovir 900 mg BID | Maribavir 400 mg BID | Total |
|---|---|---|---|
| Mean | 51.8 ± 15.22 | 53.1 ± 13.96 | 52.5 ± 14.61 |
| Sex: Female, Male(Participants) | Valganciclovir 900 mg BID | Maribavir 400 mg BID | Total |
|---|---|---|---|
| Female | 110 | 126 | 236 |
| Male | 167 | 150 | 317 |
| Ethnicity (NIH/OMB)(Participants) | Valganciclovir 900 mg BID | Maribavir 400 mg BID | Total |
|---|---|---|---|
| Hispanic or Latino | 37 | 35 | 72 |
| Not Hispanic or Latino | 193 | 216 | 409 |
| Unknown or Not Reported | 47 | 25 | 72 |
| Race (NIH/OMB)(Participants) | Valganciclovir 900 mg BID | Maribavir 400 mg BID | Total |
|---|---|---|---|
| American Indian or Alaska Native | 1 | 0 | 1 |
| Asian | 39 | 36 | 75 |
| Native Hawaiian or Other Pacific Islander | 3 | 0 | 3 |
| Black or African American | 9 | 10 | 19 |
| White | 200 | 221 | 421 |
| More than one race | 0 | 0 | 0 |
| Unknown or Not Reported | 25 | 9 | 34 |
| Region of Enrollment(Participants) | Valganciclovir 900 mg BID | Maribavir 400 mg BID | Total |
|---|---|---|---|
| Australia | 13 | 19 | 32 |
| China | 9 | 9 | 18 |
| Korea, South | 3 | 2 | 5 |
| New Zealand | 10 | 7 | 17 |
| Belgium | 31 | 30 | 61 |
| Switzerland | 4 | 2 | 6 |
| Czech Republic | 0 | 2 | 2 |
| Germany | 9 | 11 | 20 |
| Spain | 61 | 69 | 130 |
| France | 34 | 14 | 48 |
| United Kingdom | 14 | 14 | 28 |
| Greece | 1 | 0 | 1 |
| Croatia | 4 | 4 | 8 |
| Hungary | 2 | 1 | 3 |
| Israel | 2 | 2 | 4 |
| Italy | 7 | 4 | 11 |
| Poland | 1 | 2 | 3 |
| Russia | 1 | 0 | 1 |
| Turkey | 6 | 5 | 11 |
| Canada | 8 | 7 | 15 |
| United States | 50 | 61 | 111 |
| Singapore | 7 | 11 | 18 |
| Height(cm) | Valganciclovir 900 mg BID | Maribavir 400 mg BID | Total |
|---|---|---|---|
| Mean | 169.58 ± 9.391 | 168.75 ± 9.579 | 169.17 ± 9.486 |
| Weight(kg) | Valganciclovir 900 mg BID | Maribavir 400 mg BID | Total |
|---|---|---|---|
| Mean | 70.31 ± 15.247 | 70.98 ± 16.779 | 70.65 ± 16.027 |
| Body Mass Index (BMI)(kg/m^2) | Valganciclovir 900 mg BID | Maribavir 400 mg BID | Total |
|---|---|---|---|
| Mean | 24.38 ± 4.628 | 24.90 ± 5.007 | 24.64 ± 4.825 |
Showing the first 100 of 129 sites across 23 countries.
Documents are hosted by the registry — open the source record to download them.
Plan to share: Yes — Takeda provides access to the de-identified individual participant data (IPD) for eligible studies to aid qualified researchers in addressing legitimate scientific objectives (Takeda's data sharing commitment is available on https://clinicaltrials.takeda.com/takedas-commitment?commitment=5). These IPDs will be provided in a secure research environment following approval of a data sharing request, and under the terms of a data sharing agreement.
Supporting information: Study protocol, Sap, Icf, Csr
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