Study to Evaluate Viralym-M (ALVR105) for the Treatment of Virus-Associated Hemorrhagic Cystitis (HC)
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The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details. |
ClinicalTrials.gov Identifier: NCT04390113 |
Recruitment Status :
Recruiting
First Posted : May 15, 2020
Last Update Posted : January 9, 2023
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
BK Virus Infection Hemorrhagic Cystitis | Biological: Posoleucel (ALVR105) Biological: Placebo | Phase 3 |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 125 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor) |
Primary Purpose: | Treatment |
Official Title: | Phase 3 Multicenter, Double-Blind, Placebo-Controlled Trial of Viralym-M (ALVR105) for the Treatment of Patients With Virus-Associated Hemorrhagic Cystitis After Allogeneic Hematopoietic Cell Transplant (HCT) |
Actual Study Start Date : | March 18, 2021 |
Estimated Primary Completion Date : | June 2024 |
Estimated Study Completion Date : | June 2024 |

Arm | Intervention/treatment |
---|---|
Placebo Comparator: Placebo
Administered as 2-4 milliliter infusion, visually identical to Posoleucel (ALVR105)
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Biological: Placebo
Administered as 2-4 milliliter infusion, visually identical to Posoleucel (ALVR105) |
Experimental: Posoleucel (ALVR105)
Administered as 2-4 milliliter infusion, visually identical to placebo
|
Biological: Posoleucel (ALVR105)
Administered as 2-4 milliliter infusion, visually identical to placebo |
- Time until urine is visually clear of hematuria [ Time Frame: Until event occurrence through week 24 ]
- Time until bladder pain is resolved [ Time Frame: Until event occurrence through week 24 ]
- Days in the hospital for any reason [ Time Frame: Until event occurrence through week 24 ]
- Time to resolution for target all viruses [ Time Frame: Until event occurrence through week 24 ]
- Average daily bladder/lower abdominal pain [ Time Frame: Until event occurrence through week 6 ]
- Incidence and severity of acute graft versus host disease and cytokine release syndrome [ Time Frame: Until event occurance through week 24 ]

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Ages Eligible for Study: | 1 Day and older (Child, Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Key Inclusion Criteria
Participants must meet all of the following criteria in order to be eligible to participate in the study:
- Male or female ≥1 year of age.
- Had an allogeneic hematopoietic cell transplant (HCT) performed ≥21 days and ≤1 year prior to randomization.
- Myeloid engraftment confirmed, defined as an absolute neutrophil count ≥500/mm³ for 3 consecutive laboratory values obtained on different days, and platelet count >10,000/mm³ at the time of randomization.
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Diagnosed with HC based on the following criteria (all 3 criteria must be met):
- Clinical signs and/or symptoms of cystitis.
- Grade ≥3 hematuria, defined as macroscopic hematuria with visible clots.
- Viruria with ≥1 target virus (ie, BKV, JCV, AdV, CMV, EBV, and/or HHV-6).
- At least 1 identified, suitably matched posoleucel (ALVR105) cell line for infusion is available.
Key Exclusion Criteria
Participants who meet any of the following criteria will be excluded from participation in the study:
- Ongoing therapy with high-dose systemic corticosteroids (ie, prednisone dose >0.5 mg/kg/day or equivalent).
- Therapy with antithymocyte globulin, alemtuzumab (Campath-1H), or other immunosuppressive T cell-targeted monoclonal antibodies ≤28 days before randomization.
- Evidence of active Grade >2 acute graft versus host disease (GVHD).
- Uncontrolled or progressive bacterial or fungal infections.
- Uncontrolled or progressive viral infections not targeted by posoleucel (ALVR105).
- Uncontrolled or progressive EBV-associated post-transplant lymphoproliferative disorder.
- Known or presumed pneumonia secondary to any organism that is not considered to be well-controlled by antimicrobial therapy.
- Pregnant or lactating or planning to become pregnant.
Note: Other protocol defined Inclusion/Exclusion criteria may apply.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04390113
Contact: Kyle Herbert | +1 833-409-2281 | ClinicalTrials@allovir.com |

Responsible Party: | AlloVir |
ClinicalTrials.gov Identifier: | NCT04390113 |
Other Study ID Numbers: |
AVM-003-HC |
First Posted: | May 15, 2020 Key Record Dates |
Last Update Posted: | January 9, 2023 |
Last Verified: | January 2023 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Allogeneic Hematopoietic Cell Transplant ALVR105 Posoleucel |
Cystitis Urinary Bladder Diseases Urologic Diseases |