Source: European Medicines Agency (EU) Revision Year: 2023 Publisher: Atara Biotherapeutics Ireland Ltd, 10 Earlsfort Terrace, Dublin 2, D02 T380, Ireland
Ebvallo is indicated as monotherapy for treatment of adult and paediatric patients 2 years of age and older with relapsed or refractory Epstein-Barr virus positive post-transplant lymphoproliferative disease (EBV+ PTLD) who have received at least one prior therapy. For solid organ transplant patients, prior therapy includes chemotherapy unless chemotherapy is inappropriate.
Ebvallo should be administered under the supervision of a physician experienced in the treatment of cancer in a controlled setting where adequate facilities for handling of adverse reactions, including those requiring urgent measures, are available.
Treatment consists of multiple doses for injection containing a dispersion of viable T cells in one or more vials.
The recommended dose of Ebvallo contains 2 × 106 viable T cells per kg of the patient’s body weight.
Patient weight (kg) × target dose (2 × 106 viable T cells/kg) = Viable T cells to be administered
Viable T cells to be administered ÷ Actual concentration (viable T cells/mL)* = Volume of thawed cell dispersion required (mL)**
* See the accompanying Lot Information Sheet (LIS) and carton for information pertaining to the actual concentration of cells per vial.
** Volume of thawed cell dispersion requires dilution, see section 6.6.
Note: The viable T-cell concentration on the LIS and carton is the actual concentration of each vial. This may be different than the nominal concentration listed on the vial label, which should not be used for dose preparation calculations. Each vial contains 1 mL deliverable volume.
The medicinal product is administered over multiple 35-day cycles, during which patients receive Ebvallo on days 1, 8 and 15, followed by observation through day 35. A response is assessed at approximately day 28.
The number of cycles of the medicinal product to be administered is determined by the response to treatment shown in Table 1. If a complete or partial response is not obtained, patients may be switched to an Ebvallo lot with a different HLA restriction (up to 4 different restrictions) selected from the existing product inventory.
Table 1. Treatment algorithm:
Response observeda | Action |
---|---|
Complete response (CR) | Administer another cycle of Ebvallo with the same HLA restriction. If the patient achieves 2 consecutive CRs (maximal response), no further treatment with Ebvallo is recommended. |
Partial response (PR) | Administer another cycle of Ebvallo with the same HLA restriction. If the patient achieves 3 consecutive PRs (maximal response), no further treatment with Ebvallo is recommended. |
Stable disease (SD) | Administer another cycle of Ebvallo with the same HLA restriction. If the subsequent cycle results in a second SD, administer Ebvallo with a different HLA restriction. |
Progressive disease (PD) | Administer another cycle of Ebvallo with a different HLA restriction. |
Indeterminate response (IR) | Administer another cycle of Ebvallo with the same HLA restriction. If the subsequent cycle results in a second IR, administer Ebvallo with a different HLA restriction. |
a Complete response at the end of a cycle followed by partial response or other response at any subsequent cycle is considered progressive disease.
It is recommended to monitor vital signs immediately prior to each Ebvallo injection, within 10 minutes following the conclusion of the injection and 1 hour after the initiation of the injection (see section 4.4).
If a patient misses a dose, the missed dose should be given as soon as reasonably possible.
No dose adjustment is required in patients ≥65 years of age (see section 5.1). Ebvallo should be used with caution in elderly (see section 4.4).
No dose adjustment is required for patients with hepatic or renal impairment (see section 5.2).
Posology and administration in paediatric patients 2 years of age and older are the same as for adult patients.
The safety and efficacy of Ebvallo in paediatric patients below 2 years of age have not yet been established. No data are available.
Ebvallo is for intravenous use only.
Administration:
For detailed instructions on preparation, accidental exposure and disposal of the medicinal product, see section 6.6.
There are no data regarding overdose with Ebvallo.
4 years when stored in the vapour phase of liquid nitrogen at ≤ -150°C. The drug product lot manufacturing date (MFD) is provided on the vial. The expiry date is provided on the Lot Information Sheet (LIS) and carton.
The medicinal product should be thawed and diluted within 1 hour from the start of thaw. Administration must be completed within 3 hours from the start of thaw (see section 6.6).
Store between 15°C to 25°C after thawing and dilution are complete. Protect product from light. Do not refreeze. Do not irradiate.
The Ebvallo carton must be stored in the vapour phase of liquid nitrogen at ≤ -150°C until immediately prior to preparation for administration. The liquid nitrogen vapour shipper provided can maintain the appropriate temperature from the sealing of the shipper until the scheduled dose. The temperature should be monitored regularly. Three temperature excursions up to -80 °C are permittable.
For storage conditions after thawing and dilution of the medicinal product, see section 6.3.
Ebvallo is supplied in a cyclo-olefin copolymer 2 mL stoppered vials with a thermoplastic elastomer closure containing 1 mL deliverable volume of cell dispersion.
The carton contains a variable number of vials (between 1 vial and 6 vials) according to the patientspecific dose required.
This medicinal product contains human blood cells. Healthcare professionals handling Ebvallo must take appropriate precautions (wearing gloves and glasses) to avoid potential transmission of infectious diseases.
The patient’s identity must match the patient identifiers (APIN and Institution Patient ID) on the accompanying Ebvallo Lot Information Sheet (LIS) and carton. Product-patient reconciliation must be performed by matching information on the LIS against 1) the carton (matching APIN and FDP Number) and against 2) the vial label (matching Lot Number and Donor ID). Do not prepare or administer Ebvallo if the patient’s identity or the product-patient reconciliation cannot be confirmed. Prior to thawing, ensure that the required dose calculations are completed (see section 4.2), all materials needed to prepare the dose are available, and the patient is onsite and has been clinically evaluated.
Materials required for dose preparation:
Prepare the diluent:
Dilution and dose preparation:
In case of accidental exposure, local guidelines on handling of human-derived material should be followed, which may include washing of the contaminated skin and removal of contaminated clothes. Work surfaces and materials which have potentially been in contact with Ebvallo must be decontaminated with appropriate disinfectant.
Unused medicinal product and all material that has been in contact with Ebvallo (solid and liquid waste) must be handled and disposed of as potentially infectious waste in accordance with local guidelines on handling of human-derived material.
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