KYMRIAH Dispersion for infusion Ref.[8681] Active ingredients: Tisagenlecleucel

Source: European Medicines Agency (EU)  Revision Year: 2024  Publisher: Novartis Europharm Limited, Vista Building, Elm Park, Merrion Road, Dublin 4, Ireland

4.1. Therapeutic indications

Kymriah is indicated for the treatment of:

  • Paediatric and young adult patients up to and including 25 years of age with B-cell acute lymphoblastic leukaemia (ALL) that is refractory, in relapse post-transplant or in second or later relapse.
  • Adult patients with relapsed or refractory diffuse large B-cell lymphoma (DLBCL) after two or more lines of systemic therapy.
  • Adult patients with relapsed or refractory follicular lymphoma (FL) after two or more lines of systemic therapy.

4.2. Posology and method of administration

Kymriah must be administered in a qualified treatment centre. Therapy should be initiated under the direction of and supervised by a healthcare professional experienced in the treatment of haematological malignancies and trained for administration and management of patients treated with the medicinal product.

In the event of cytokine release syndrome (CRS), at least one dose of tocilizumab and emergency equipment must be available per patient prior to infusion. The treatment centre must have access to additional doses of tocilizumab within 8 hours. In the exceptional case where tocilizumab is not available due to a shortage that is listed in the European Medicines Agency shortage catalogue, suitable alternative measures to treat CRS instead of tocilizumab must be available prior to infusion.

Manufacture and release of Kymriah usually takes about 3-4 weeks.

Posology

Kymriah is intended for autologous use only (see section 4.4).

Treatment consists of a single dose for infusion containing a dispersion for infusion of CAR-positive viable T cells in one or more infusion bags.

Dose in paediatric and young adult B-cell ALL patients:

The concentration of CARpositive viable T cells is dependent on indication and patient body weight.

  • For patients 50 kg and below: The dose is within a range of 0.2 to 5 × 106 CAR-positive viable T cells per kg body weight.
  • For patients above 50 kg: The dose is within a range of 0.1 to 2.5 × 108 CAR-positive viable T cells (non-weight based).

Dose in adult DLBCL and FL patients:

  • The dose is within a range of 0.6 to 6 × 108 CAR-positive viable T cells (non-weight based).

See the accompanying batch specific documentation for additional information pertaining to dose.

Pre-treatment conditioning (lymphodepleting chemotherapy)

The availability of Kymriah must be confirmed prior to starting the lymphodepleting regimen. For B-cell ALL and DLBCL indications, Kymriah is recommended to be infused 2 to 14 days after completion of the lymphodepleting chemotherapy. For FL, Kymriah is recommended to be infused 2 to 6 days after completion of the lymphodepleting chemotherapy.

Lymphodepleting chemotherapy may be omitted if a patient is experiencing significant cytopenia, e.g., white blood cell (WBC) count ≤1 000 cells/μL within one week prior to infusion.

If there is a delay of more than 4 weeks between completing lymphodepleting chemotherapy and the infusion and the WBC count is >1 000 cells/μL, then the patient should be re-treated with lymphodepleting chemotherapy prior to receiving Kymriah.

B-cell ALL

The recommended lymphodepleting chemotherapy regimen is:

  • Fludarabine (30 mg/m² intravenous daily for 4 days) and cyclophosphamide (500 mg/m² intravenous daily for 2 days starting with the first dose of fludarabine).

If the patient experienced a previous Grade 4 haemorrhagic cystitis with cyclophosphamide, or demonstrated a chemorefractory state to a cyclophosphamide-containing regimen administered shortly before lymphodepleting chemotherapy, then the following should be used:

  • Cytarabine (500 mg/m² intravenous daily for 2 days) and etoposide (150 mg/m² intravenous daily for 3 days starting with the first dose of cytarabine).

DLBCL and FL

The recommended lymphodepleting chemotherapy regimen is:

  • Fludarabine (25 mg/m² intravenous daily for 3 days) and cyclophosphamide (250 mg/m² intravenous daily for 3 days starting with the first dose of fludarabine).

If the patient experienced a previous Grade 4 haemorrhagic cystitis with cyclophosphamide, or demonstrated a chemorefractory state to a cyclophosphamide-containing regimen administered shortly before lymphodepleting chemotherapy, then the following should be used:

  • Bendamustine (90 mg/m² intravenous daily for 2 days).

Pre-medication

To minimise potential acute infusion reactions, it is recommended that patients be premedicated with paracetamol and diphenhydramine or another H1 antihistamine within approximately 30 to 60 minutes prior to Kymriah infusion. Corticosteroids should not be used at any time except in the case of a lifethreatening emergency (see section 4.4).

Clinical assessment prior to infusion

Kymriah treatment should be delayed in some patient groups at risk (see section 4.4).

Monitoring after infusion

  • Patients should be monitored daily for the first 10 days following infusion for signs and symptoms of potential cytokine release syndrome, neurological events and other toxicities. Physicians should consider hospitalisation for the first 10 days post infusion or at the first signs/symptoms of cytokine release syndrome and/or neurological events.
  • After the first 10 days following the infusion, the patient should be monitored at the physician’s discretion.
  • Patients should be instructed to remain within proximity (within 2 hours of travel) of a qualified clinical facility for at least 4 weeks following infusion.

Special populations

Elderly

B-cell ALL:

The safety and efficacy of Kymriah in this population have not been established.

DLBCL and FL:

No dose adjustment is required in patients over 65 years of age.

Patients seropositive for hepatitis B virus (HBV), hepatitis C virus (HCV), or human immunodeficiency virus (HIV)

There is no experience with manufacturing Kymriah for patients with a positive test for HIV, active HBV, or active HCV infection. Leukapheresis material from these patients will not be accepted for Kymriah manufacturing. Screening for HBV, HCV, and HIV must be performed in accordance with clinical guidelines before collection of cells for manufacturing.

Paediatric population

B-cell ALL:

There is limited experience with Kymriah in paediatric patients below the age of 3 years. Currently available data in this age group are described in sections 4.8 and 5.1.

DLBCL:

The safety and efficacy of Kymriah in children and adolescents below 18 years of age have not yet been established. Currently available data are described in section 5.1 but no recommendation on a posology can be made.

FL:

The safety and efficacy of Kymriah in children and adolescents below 18 years of age have not yet been established. No data are available.

Method of administration

Kymriah is for intravenous use only.

Preparation for infusion

Kymriah is intended for autologous use only. Before administration, it must be confirmed that the patient’s identity matches the unique patient information on the Kymriah infusion bags and accompanying documentation. The total number of infusion bags to be administered should also be confirmed with the patient specific information on the batch specific documentation (see section 4.4).

The timing of thaw of Kymriah and infusion should be coordinated (please refer to section 6.6).

Administration

Kymriah should be administered as an intravenous infusion through latex-free intravenous tubing without a leukocyte depleting filter, at approximately 10 to 20 mL per minute by gravity flow.

If the volume of Kymriah to be administered is ≤20 mL, intravenous push may be used as an alternative method of administration.

For detailed instructions on preparation, administration, measures to take in case of accidental exposure and disposal of Kymriah, see section 6.6.

4.9. Overdose

Overdose has not been reported.

In case of overdose, the potential risk is an increased probability of developing CRS including severe CRS. For close monitoring, see section 4.2; for symptoms and management of CRS, see section 4.4.

6.3. Shelf life

9 months.

The medicinal product should be administered immediately after thawing. After thawing, the product should be kept at room temperature (20°C-25°C) and infused within 30 minutes to maintain maximum product viability, including any interruption during the infusion.

6.4. Special precautions for storage

Kymriah must be stored and transported ≤ -120°C, e.g. in a container for cryogenic storage in the vapour phase of liquid nitrogen, and must remain frozen until the patient is ready for treatment to ensure viable cells are available for patient administration. Do not re-freeze after thawing.

For storage conditions after thawing of the medicinal product, see section 6.3.

6.5. Nature and contents of container

Ethylene vinyl acetate (EVA) infusion bag with polyvinyl chloride (PVC) tubing and a luer spike interconnector closed by a luer-lock cap containing either 10–30 mL (50 mL bags) or 30–50 mL (250 mL bags) cell dispersion.

Each infusion bag is placed into a protective layer.

One individual treatment dose comprises 1 or more infusion bags.

6.6. Special precautions for disposal and other handling

Precautions to be taken before handling or administering the medicinal product

Kymriah should be transported within the facility in closed, break-proof, leak-proof containers.

This medicinal product contains human blood cells. Healthcare professionals handling Kymriah must take appropriate precautions (wearing gloves and eye protection) to avoid potential transmission of infectious diseases.

Preparation prior to administration

Before administration, it must be confirmed that the patient’s identity matches the unique patient information on the Kymriah infusion bags and accompanying documentation. The total number of infusion bags to be administered should also be confirmed with the patient specific information on the batch specific documentation accompanying the medicinal product.

The timing of thaw of Kymriah and infusion should be coordinated. The infusion start time should be confirmed in advance and adjusted for thaw so that Kymriah is available for infusion when the recipient is ready. Once Kymriah has been thawed and is at room temperature (20°C–25°C), it should be infused within 30 minutes to maintain maximum product viability, including any interruption during the infusion.

Inspection and thawing of the infusion bag(s)

Do not thaw the product until it is ready to be used.

The infusion bag should be placed inside a second sterile bag during thawing to protect ports from contamination and avoid spills in the unlikely event of the bag leaking. Kymriah should be thawed at 37°C using either a water bath or dry thaw method until there is no visible ice in the infusion bag. The bag should be removed immediately from the thawing device and kept at room temperature (20°C-25°C) until infusion. If more than one infusion bag has been received for the treatment dose (refer to the batch certificate for number of bags constituting one dose), the next bag should only be thawed after the contents of the preceding bag have been infused.

Kymriah should not be manipulated. For example, Kymriah should not be washed (spun down and resuspended in new media) prior to infusion.

The infusion bag(s) should be examined for any breaks or cracks prior to thawing. If the infusion bag appears to have been damaged or to be leaking, it should not be infused and should be disposed of according to local procedures on handling of biological waste.

Administration

Kymriah intravenous infusion should be administered by a healthcare professional experienced with immunosuppressed patients and prepared to manage anaphylaxis. In the event of cytokine release syndrome (CRS), ensure that at least one dose of tocilizumab per patient and emergency equipment are available prior to infusion. Hospitals must have access to additional doses of tocilizumab within 8 hours. In the exceptional case where tocilizumab is not available due to a shortage that is listed in the European Medicines Agency shortage catalogue, ensure that suitable alternative measures to treat cytokine release syndrome are available on site.

The patient’s identity should be matched with the patient identifiers on the infusion bag. Kymriah is intended solely for autologous use and must not, under any circumstances, be administered to other patients.

Kymriah should be administered as an intravenous infusion through latex-free intravenous tubing without a leukocyte depleting filter, at approximately 10 to 20 mL per minute by gravity flow. All contents of the infusion bag(s) should be infused. Sterile sodium chloride 9 mg/mL (0.9%) solution for injection should be used to prime the tubing prior to infusion and to rinse it after infusion. When the full volume of Kymriah has been infused, the infusion bag should be rinsed with 10 to 30 mL sodium chloride 9 mg/mL (0.9%) solution for injection by back priming to ensure as many cells as possible are infused into the patient.

If the volume of Kymriah to be administered is ≤20 mL, intravenous push may be used as an alternative method of administration.

Measures to take in case of accidental exposure

In case of accidental exposure local guidelines on handling of human-derived material should be followed. Work surfaces and materials which have potentially been in contact with Kymriah must be decontaminated with appropriate disinfectant.

Precautions to be taken for the disposal of the medicinal product

Unused medicinal product and all material that has been in contact with Kymriah (solid and liquid waste) should be handled and disposed of as potentially infectious waste in accordance with local guidelines on handling of human-derived material.

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