Bortezomib 2.5 mg/ml solution for injection – patient leaflet, side effects, dosage

1. What Bortezomib is and what it is used for

Bortezomib contains the active substance bortezomib, a so-called 'proteasome inhibitor'. Proteasomes play an important role in controlling cell function and growth. By interfering with their function, bortezomib can kill cancer cells.

Bortezomib is used for the treatment of multiple myeloma (a cancer of the bone marrow) in patients older than 18 years:

• alone or together with the medicines

  pegylated liposomal doxorubicin or dexamethasone, for patients whose disease is worsening (progressive) after receiving at least one prior treatment and for whom blood stem cell transplantation was not successful or is unsuitable.

• in combination with the medicines

  melphalan and prednisone, for patients whose disease has not been previously treated and are unsuitable for high-dose chemotherapy with blood stem cell transplantation.

• in combination with the medicines

  dexamethasone or dexamethasone together with thalidomide, for patients whose disease has not been previously treated and before receiving high-dose chemotherapy with blood stem cell transplantation (induction treatment).

Bortezomib is used for the treatment of mantle cell lymphoma (a type of cancer affecting the lymph nodes) in patients 18 years or older in combination with the medicines rituximab, cyclophosphamide, doxorubicin and prednisone, for patients whose disease has not been previously treated and for whom blood stem cell transplantation is unsuitable.

2. What you need to know before you use Bortezomib

Do not use Bortezomib

• if you are allergic to bortezomib, boron or to

  any of the other ingredients of this medicine (listed in section 6)

• if you have certain severe lung or heart

  problems.

Warnings and precautions

You should tell your doctor if you have any of the following:

• low numbers of red or white blood cells · bleeding problems and/or low number of

  platelets in your blood

• diarrhoea, constipation, nausea or vomiting · fainting, dizziness or light-headedness in the

  past

• kidney problems

• moderate to severe liver problems · numbness, tingling, or pain in the hands or

  feet (neuropathy) in the past

• heart or blood pressure problems
• shortness of breath or cough
• seizures

• shingles (localised including around the eyes

  or spread across the body)

• symptoms of tumor lysis syndrome such as

  muscle cramping, muscle weakness, confusion, visual loss or disturbances and shortness of breath

• memory loss, trouble thinking, difficulty

  with walking or loss of vision. These may be signs of a serious brain infection and your doctor may suggest further testing and follow-up.

You will have to take regular blood tests before and during your treatment with bortezomib, to check your blood cell counts regularly. If you have mantle cell lymphoma and are given the medicine rituximab with bortezomib you should tell your doctor:

• if you think you have hepatitis infection now

You must read the package leaflets of all medicinal products to be taken in combination with bortezomib for information related to these medicines before starting treatment with bortezomib. When thalidomide is used, particular attention to pregnancy testing and prevention requirements is needed (see Pregnancy and breast-feeding in this section).

Children and adolescents

Bortezomib should not be used in children and adolescents because it is not known how the medicine will affect them.

Other medicines and Bortezomib

Please tell your doctor, or pharmacist if you are taking, have recently taken or might take any other medicines.

In particular, tell your doctor if you are using medicines containing any of the following active substances:

• ketoconazole, used to treat fungal infections

  ritonavir, used to treat HIV infection

• rifampicin, an antibiotic used to treat

  bacterial infections

• carbamazepine, phenytoin or phenobarbital

  used to treat epilepsy

• St. John's Wort (Hypericum perforatum),

  used for depression or other conditions

• oral antidiabetics

Pregnancy and breast-feeding

You should not use bortezomib if you are pregnant, unless clearly necessary.

Women of childbearing potential must use effective contraception during treatment and for 8 months following completion of treatment. Talk to your doctor if you wish to freeze your eggs before starting treatment.

Men should not father a child while using bortezomib and should use effective contraception during treatment and for up to 5 months after treatment has stopped. Talk to your doctor if you wish to conserve your sperm before starting treatment.

You should not breast-feed while using bortezomib. Discuss with your doctor when it is safe to restart breast-feeding after finishing your treatment.

Thalidomide causes birth defects and foetal death. When bortezomib is given in combination with thalidomide you must follow the pregnancy prevention programme for thalidomide (see package leaflet for thalidomide).

Driving and using machines

Bortezomib might cause tiredness, dizziness, fainting, or blurred vision. Do not drive or operate tools or machines if you experience such side effects; even if you do not, you should still be cautious.

Bortezomib contains sodium

This medicine contains less than 1 mmol sodium (23 mg) per vial, that is to say essentially “sodium free”.

3. How to use Bortezomib

Your doctor will work out your dose of bortezomib according to your height and weight (body surface area). The usual starting dose of

2

bortezomib is 1.3 mg/m body surface area twice a week.

Your doctor may change the dose and total number of treatment cycles, depending on your response to the treatment on the occurrence of certain side effects and on your underlying conditions (e.g. liver problems).

Progressive multiple myeloma

When bortezomib is given alone, you will receive 4 doses of bortezomib intravenously or subcutaneously on days 1, 4, 8 and 11, followed by a 10-day 'rest period' without treatment. This 21-day period (3 weeks) corresponds to one treatment cycle. You might receive up to 8 cycles (24 weeks).

You may also be given bortezomib together with the medicines pegylated liposomal doxorubicin or dexamethasone.

When bortezomib is given together with pegylated liposomal doxorubicin, you will receive bortezomib intravenously or subcutaneously as a 21-day treatment cycle and

2

pegylated liposomal doxorubicin 30 mg/m is given on day 4 of the bortezomib 21-day treatment cycle as an intravenous infusion after the bortezomib injection.

You might receive up to 8 cycles (24 weeks). When bortezomib is given together with dexamethasone, you will receive bortezomib intravenously or subcutaneously as a 21-day treatment cycle and dexamethasone 20 mg is given orally on days 1, 2, 4, 5, 8, 9, 11, and 12, of the bortezomib, 21-day treatment cycle. You might receive up to 8 cycles (24 weeks). Previously untreated multiple myeloma If you have not been treated before for multiple myeloma, and you are not suitable for blood stem cell transplantation you will receive bortezomib together with two other medicines; melphalan and prednisone.

In this case, the duration of a treatment cycle is 42 days (6 weeks). You will receive 9 cycles (54 weeks).

• In cycles 1 to 4, bortezomib is administered

  twice weekly on days 1, 4, 8, 11, 22, 25, 29 and 32.

• In cycles 5 to 9, bortezomib is administered

  once weekly on days 1, 8, 22 and 29.

  2

Melphalan (9 mg/m ) and prednisone (60

2

mg/m ) are both given orally on days 1, 2, 3 and 4 of the first week of each cycle.

If you have not been treated before for multiple myeloma, and you are suitable for blood stem cell transplantation you will receive bortezomib intravenously or subcutaneously together with the medicines dexamethasone, or

dexamethasone and thalidomide, as induction treatment.

When bortezomib is given together with dexamethasone, you will receive bortezomib intravenously or subcutaneously as a 21-day treatment cycle and dexamethasone 40 mg is given orally on days 1, 2, 3, 4, 8, 9, 10 and 11 of the bortezomib 21-day treatment cycle. You will receive 4 cycles (12 weeks). When bortezomib is given together with thalidomide and dexamethasone, the duration of a treatment cycle is 28 days (4 weeks). Dexamethasone 40 mg is given orally on days 1, 2, 3, 4, 8, 9, 10 and 11 of the bortezomib

28-day treatment cycle and thalidomide is given orally daily at 50 mg up to day 14 of the first cycle, and if tolerated the thalidomide dose is increased to 100 mg on days 15-28 and may be further increased to 200 mg daily from the second cycle onwards.

You might receive up to 6 cycles (24 weeks). Previously untreated mantle cell lymphoma If you have not been treated before for mantle cell lymphoma you will receive bortezomib intravenously or subcutaneously together with the medicines rituximab, cyclophosphamide, doxorubicin and prednisone. bortezomib is given intravenously or subcutaneously on days 1, 4, 8 and 11, followed by a 'rest period' without treatment. The duration of a treatment cycle is 21 days (3 weeks). You might receive up to 8 cycles (24 weeks).

The following medicinal products are given on day 1 of each bortezomib 21-day treatment cycle as intravenous infusions:

2

Rituximab at 375 mg/m , cyclophosphamide at

2 2 750 mg/m and doxorubicin at 50 mg/m .

2 Prednisone is given orally at 100 mg/m on days 1, 2, 3, 4 and 5 of the bortezomib treatment cycle.

How this medicine is given

This medicine is for intravenous or subcutaneous use. This medicine will be administered by a health care professional experienced in the use of cytotoxic medicines. The solution is then either injected into a vein or under the skin. Injection into a vein is rapid, taking 3 to 5 seconds. Injection under the skin is in either the thighs or the abdomen. If you are given too much of this product

As this medicine is being given by your doctor or nurse, it is unlikely that you will be given too much. In the unlikely event of an overdose, your doctor will monitor you for side effects.

4. Possible side effects

Like all medicines, this medicine can cause side effects, although not everybody gets them. Some of these effects may be serious. If you are given bortezomib for multiple myeloma or mantle cell lymphoma, tell your doctor straight away if you notice any of the following symptoms:

• muscle cramping, muscle weakness
• confusion, visual loss or disturbances, blindness, seizures, headaches
• shortness of breath, swelling of your feet or changes in your heart beat, high blood pressure, tiredness, fainting
• coughing and breathing difficulties or tightness in the chest.

Treatment with bortezomib can very commonly cause a decrease in the numbers of red and white blood cells and platelets in your blood. Therefore, you will have to take regular blood tests before and during your treatment with bortezomib, to check your blood cell counts regularly. You may experience a reduction in the number of:

• platelets, which may make you be more prone to bruising, or to bleeding without obvious injury (e.g., bleeding from your bowels, stomach, mouth and gum or bleeding in the brain or bleeding from the liver)
• red blood cells, which can cause anaemia, with symptoms such as tiredness and paleness
• white blood cells may make you more prone to infections or flu-like symptoms. If you are given bortezomib for the treatment of multiple myeloma the side effects you may get are listed below:

Very common side effects (may affect more than 1 in 10 people)

• Sensitivity, numbness, tingling or burning sensation of the skin, or pain in the hands or feet, due to nerve damage
• Reduction in the number of red blood cells and or white blood cells (see above) · Fever
• Feeling sick (nausea) or vomiting, loss of appetite

• Constipation with or without bloating

  (can be severe)

• Diarrhoea: if this happens, it is important that you drink more water than usual. Your doctor may give you another medicine to control diarrhoea
• Tiredness (fatigue), feeling weak · Muscle pain, bone pain

Common side effects (may affect up to 1 in 10 people)

• Low blood pressure, sudden fall of blood pressure on standing which may lead to fainting
• High blood pressure
• Reduced functioning of your kidneys · Headache
• General ill feeling, pain, vertigo, light-headedness, a feeling of weakness or loss of consciousness
• Shivering
• Infections, including pneumonia, respiratory infections, bronchitis, fungal infections, coughing with phlegm, flu like illness · Shingles (localised including around the eyes or spread across the body)
• Chest pains or shortness of breath with exercise
• Different types of rash
• Itching of the skin, lumps on the skin or dry skin
• Facial blushing or tiny broken capillaries · Redness of the skin
• Dehydration
• Heartburn, bloating, belching, wind, stomach pain, bleeding from your bowels or stomach

The following information is intended for healthcare professionals only:

General precautions

Bortezomib is a cytotoxic agent. Therefore, caution should be used during handling and preparation of bortezomib. Use of gloves and other protective clothing to prevent skin contact is recommended.

Aseptic technique must be strictly observed throughout the handling of bortezomib, since it contains no preservative.

There have been fatal cases of inadvertent intrathecal administration of bortezomib. Bortezomib 2.5 mg/ml solution for injection is for subcutaneous and, after dilution, also for intravenous use. Bortezomib should not be administered intrathecally.

Intravenous injection

Vials containing 0.4 ml of solution for injection / 1 mg bortezomib.

Each vial of bortezomib must be carefully diluted with 0.9 ml sodium chloride 9 mg/ml

(0.9 %) solution for injection for an intravenous injection, by using a syringe of the appropriate size, without removing the vial stopper. After dilution, each ml solution contains 1 mg bortezomib.

Vials containing 1 ml of solution for injection contains 2.5 mg bortezomib.

Each vial of bortezomib must be carefully diluted with 1.8 ml sodium chloride 9 mg/ml (0.9 %) solution for injection for an intravenous injection, by using a syringe of the appropriate size, without removing the vial stopper. After dilution, each ml solution contains 1 mg bortezomib.

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UK (Unit-VI) Bortezomib injection 2.5 mg/ mL

Non-Prin ng Colour: Cu er Guides Size: 210 x 590 mm

Size: 210 mm (Width)

• Alteration of liver functioning

• A sore mouth or lip, dry mouth, mouth

  ulcers or throat pain

• Weight loss, loss of taste

• Muscle cramps, muscle spasms, muscle

  weakness, pain in your limbs

• Blurred vision

• Infection of the outermost layer of the eye

  and the inner surface of the eyelids (conjunctivitis)

• Nose bleeds

• Difficulty or problems in sleeping, sweating,

  anxiety, mood swings, depressed mood, restlessness or agitation, changes in your mental status, disorientation

• Swelling of body, to include around eyes and

  other parts of the body

Uncommon side effects (may affect up to 1 in 100 people)

• Heart failure, heart attack, chest pain, chest

  discomfort, increased or reduced heart rate · Failing of your kidneys

• Inflammation of a vein, blood clots in your

  veins and lungs

• Problems with blood clotting
• Insufficient circulation

• Inflammation of the lining around your heart

  or fluid around your heart

• Infections including urinary tract infections,

  the flu, herpes virus infections, ear infection and cellulitis

• Bloody stools, or bleeding from mucosal

  membranes, e.g., mouth, vagina

• Cerebrovascular disorders

• Paralysis, seizures, falling, movement

  disorders, abnormal or change in, or reduced sensation (feeling, hearing, tasting, smelling), attention disturbance, trembling, twitching

• Arthritis, including inflammation of the

  joints in the fingers, toes, and the jaw · Disorders that affect your lungs, preventing

  your body from getting enough oxygen. Some of these include difficulty breathing, shortness of breath, shortness of breath without exercise, breathing that becomes shallow, difficult or stops, wheezing · Hiccups, speech disorders

• Increased or decreased urine production

  (due to kidney damage), painful passing of urine or blood/proteins in the urine, fluid retention

• Altered levels of consciousness, confusion,

  memory impairment or loss

• Hypersensitivity

• Hearing loss, deafness or ringing in the ears,

  ear discomfort

• Hormone abnormality which may affect salt

  and water absorption

• Overactive thyroid gland

• Inability to produce enough insulin or

  resistance to normal levels of insulin · Irritated or inflamed eyes, excessively wet

  eyes, painful eyes, dry eyes, eye infections, lump in the eyelid (chalazion), red and swollen eyelids, discharge from the eyes, abnormal vision, bleeding of the eye · Swelling of your lymph glands

• Joint or muscle stiffness, sense of heaviness,

  pain in your groin

• Hair loss and abnormal hair texture · Allergic reactions
• Redness or pain at the injection site · Mouth pain

• Infections or inflammation of the mouth,

  mouth ulcers, oesophagus, stomach and intestines, sometimes associated with pain or bleeding, poor movement of the intestines (including blockage), abdominal or oesophageal discomfort, difficulty swallowing, vomiting of blood

• Skin infections
• Bacterial and viral infections
• Tooth infection

• Inflammation of the pancreas, obstruction of

  the bile duct

• Genital pain, problem having an erection · Weight increase
• Thirst
• Hepatitis

• Injection site or injection device related

  disorders

• Skin reactions and disorders (which may be

  severe and life threatening), skin ulcers · Bruises, falls and injuries

• Inflammation or haemorrhage of the blood

  vessels that can appear as small red or purple dots (usually on the legs) to large bruise-like patches under the skin or tissue

• Benign cysts

• A severe reversible brain condition which

  includes seizures, high blood pressure, headaches, tiredness, confusion, blindness or other vision problems.

Rare side effects (may affect up to 1 in 1,000 people)

• Heart problems to include heart attack,

  angina

• Serious nerve inflammation, which may

  cause paralysis and difficulty breathing (Guillain-Barré syndrome)

• Flushing
• Discolouration of the veins
• Inflammation of the spinal nerve

• Problems with your ear, bleeding from your

  ear

• Underactivity of your thyroid gland · Budd–Chiari syndrome (the clinical

  symptoms caused by blockage of the hepatic veins)

• Changes in or abnormal bowel function · Bleeding in the brain

  • Yellow discolouration of eyes and skin

    (jaundice)

  • Serious allergic reaction (anaphylactic

    shock) signs of which may include difficulty breathing, chest pain or chest tightness, and/or feeling dizzy/faint, severe itching of the skin or raised lumps on the skin, swelling of the face, lips, tongue and /or throat, which may cause difficulty in swallowing, collapse

  • Breast disorders
  • Vaginal tears
  • Genital swelling
  • Inability to tolerate alcohol consumption · Wasting, or loss of body mass
  • Increased appetite
  • Fistula
  • Joint effusion
  • Cysts in the lining of joints (synovial cysts) · Fracture

  • Breakdown of muscle fibers leading to other

    complications

  • Swelling of the liver, bleeding from the liver · Cancer of the kidney
  • Psoriasis like skin condition
  • Cancer of the skin
  • Paleness of the skin

  • Increase of platelets or plasma cells

    (a type of white cell) in the blood · Blood clot in small blood vessels

    (thrombotic microangiopathy)

  • Abnormal reaction to blood transfusions · Partial or total loss of vision
  • Decreased sex drive
  • Drooling
  • Bulging eyes
  • Sensitivity to light
  • Rapid breathing
  • Rectal pain
  • Gallstones
  • Hernia
  • Injuries
  • Brittle or weak nails

  • Abnormal protein deposits in your vital

    organs

  • Coma
  • Intestinal ulcers
  • Multi-organ failure
  • Death

If you are given bortezomib together with other medicines for the treatment of mantle cell lymphoma the side effects you may get are listed below:

Very common side effects (may affect more than 1 in 10 people)

• Pneumonia
• Loss of appetite

• Sensitivity, numbness, tingling or burning

  sensation of the skin, or pain in the hands or feet, due to nerve damage

• Nausea and vomiting
• Diarrhoea
• Mouth ulcers
• Constipation
• Muscle pain, bone pain
• Hair loss and abnormal hair texture · Tiredness, feeling weak
• Fever

Common side effects (may affect up to 1 in 10 people)

• Shingles (localised including around the

  eyes or spread across the body)

• Herpes virus infections
• Bacterial and viral infections

• Respiratory infections, bronchitis, coughing

  with phlegm, flu like illness

• Fungal infections

• Hypersensitivity (allergic reaction) · Inability to produce enough insulin or

  resistance to normal levels of insulin · Fluid retention

• Difficulty or problems in sleeping · Loss of conciousness
• Altered level of consciousness, confusion · Feeling dizzy

• Increased heartbeat, high blood pressure,

  sweating

• Abnormal vision, blurred vision · Heart failure, heart attack, chest pain, chest

  discomfort, increased or reduced heart rate · High or low blood pressure

• Sudden fall of blood pressure upon standing

  which may lead to fainting

• Shortness of breath with exercise · Cough
• Hiccups
• Ringing in the ears, ear discomfort · Bleeding from your bowels or stomach · Heartburn
• Stomach pain, bloating
• Difficulty swallowing

• Infection or inflammation of the stomach

  and intestines

• Stomach pain
• Sore mouth or lip, throat pain
• Alteration of liver function
• Itching of skin
• Redness of skin
• Rash
• Muscle spasms
• Infection of the urinary tract
• Pain in limbs

• Swelling of body, to include eyes and other

  parts of the body

• Shivering
• Redness and pain at injection site · General ill feeling
• Weight loss

• Weight increase

  Uncommon side effects (may affect up to 1 in 100 people)

  • Hepatitis
  • Severe allergic reaction (anaphylactic reaction) signs of which may include difficulty breathing, chest pain or chest tightness, and/or feeling dizzy/faint, severe itching of the skin or raised lumps on the skin, swelling of the face, lips, tongue and /or throat, which may cause difficulty in swallowing, collapse
  • Movement disorders, paralysis, twitching · Vertigo
  • Hearing loss, deafness
  • Disorders that affect your lungs, preventing your body from getting enough oxygen. Some of these include difficulty breathing, shortness of breath, shortness of breath without exercise, breathing that becomes shallow, difficult or stops, wheezing · Blood clots in your lungs

  • Yellow discolouration of the eyes and skin

    (jaundice)

  • Lump in the eyelid (chalazion), red and swollen eyelids

Rare side effects (may affect up to 1 in 1,000 people)

• Blood clot in small blood vessels

  (thrombotic microangiopathy)

• Serious nerve inflammation, which may cause paralysis and difficulty breathing (Guillain-Barré syndrome)

Reporting of side effects

If you get any side effects talk to your doctor or pharmacist. This includes any possible side effects not listed in this leaflet. You can also report side effects directly via Yellow Card Scheme website www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store.

By reporting side effects, you can help provide more information on the safety of this medicine.

5. How to store Bortezomib

Keep this medicine out of the sight and reach of children.

Do not use this medicine after the expiry date stated on the vial and the carton after EXP. Store in a refrigerator at 2°C to 8°C. Keep the vial in the outer carton in order to protect from light.

After dilution

The chemical and physical in-use stability of the solution prepared for injection has been demonstrated for 8 hours at 25°C stored in the original vial and/or a syringe when diluted in 0.9% Sodium Chloride Injection. The total storage time for the diluted product should not exceed 8 hours prior to administration. From a microbiological point of view, unless the method of opening and/or dilution precludes the risk of microbial contamination, the product should be used immediately. If not used immediately, in-use storage times and conditions are the responsibility of user. Bortezomib is for single use only. Any unused product or waste material should be disposed of in accordance with local requirements.

6. Contents of the pack and other information

What Bortezomib contains

The active substance is bortezomib. Each ml of solution for injection contains 2.5 mg bortezomib.

One vial of 0.4 ml of solution for injection contains 1 mg bortezomib.

One vial of 1 ml of solution for injection contains 2.5 mg bortezomib.

One vial of 1.4 ml of solution for injection contains 3.5 mg bortezomib.

For subcutaneous injection, no dilution is necessary.

1 ml of solution for subcutaneous injection contains 2.5 mg bortezomib.

For intravenous injection, dilution is necessary. After dilution, 1 ml of solution for intravenous injection contains 1 mg bortezomib. The other ingredients are mannitol (E 421), sodium chloride, sodium hydroxide (for pH-adjustment), hydrochloric acid concentrated (for pH-adjustment), water for injection. What this product looks like and contents of the pack

Bortezomib solution for injection is a clear colourless to light yellow solution.

10ml Type-1 Clear tubular glass vial with igloo GCB Grey EPP rubber stopper with orange colour flip off seal containing 0.4 ml of solution for injection.

10ml Type-1 Clear tubular glass vial with igloo GCB Grey EPP rubber stopper with white colour flip off seal containing 1 ml solution for injection.

10ml Type-1 Clear tubular glass vial with igloo GCB Grey EPP rubber stopper with yellow matte top colour flip off seal containing 1.4 ml solution for injection.

The vial is contained in a carton box. Each pack contains 1 single-use vial.

Marketing Authorisation Holder and Manufacturers

Amarox Limited

Congress House, 14 Lyon Road

Harrow, HA1 2EN

United Kingdom

This leaflet was last revised in 01/2026

2089603

Vials containing 1.4 ml of solution for injection contains 3.5 mg bortezomib.

Each vial of bortezomib must be carefully diluted with 2.3 ml sodium chloride 9 mg/ml (0.9 %) solution for injection for an intravenous injection, by using a syringe of the appropriate size, without removing the vial stopper. After dilution, each ml solution contains 1 mg bortezomib.

The diluted solution is clear colourless to light yellow solution. The diluted solution must be inspected visually for particulate matter and discolouration prior to administration. If any discolouration or particulate matter is observed, the diluted solution must be discarded.

Subcutaneous injection

Each vial of bortezomib is ready to use for a subcutaneous injection. Each ml solution contains 2.5 mg bortezomib. The solution is clear colourless to light yellow solution with pH of 4.0 to 6.0, and it must be inspected visually for particulate matter and discolouration prior to administration. If any discolouration or particulate matter is observed, the solution must be discarded.

Disposal

Bortezomib is for single use only. Any unused medicinal product or waste material should be disposed of in accordance with local requirements.

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