Adalimumab for Crohn`s Disease
Transcription
Adalimumab for Crohn`s Disease
Adalimumab for Crohn’s Disease Digestive Disease Centre How does it work? Adalimumab (Humira) works with your body’s immune system to block the action of an inflammatory agent, TNF-alpha (Tumour necrosis factor- alpha) found in the blood. As part of the immune response, your body naturally produces chemicals, such as TNF-alpha, to help fight infections, temporarily causing inflammation in the affected areas. In Crohn’s disease the body produces too much TNFalpha. This high concentration of TNF-alpha found in the lining of the inflamed intestine is believed to be one of the key drivers of chronic inflammation. Adalimumab is a fully human monoclonal antibody. This means that it does not contain any components from other animals. It recognises and binds specifically to TNF-alpha and neutralises its biological function. It also lessens the movement of inflammatory cells, directed by TNF-alpha, into inflamed areas of the intestines by altering your body’s inappropriate immune response. Adalimumab is not a cure but can help reduce inflammation and relieve the symptoms of Crohn’s disease. How quickly does it work? For those people who respond to Adalimumab they will notice some improvement in 4 weeks. The largest study looking at the effectiveness of Adalimumab found that 40% of patients were in remission and off steroids at 6 months and of these 81% remained in remission at 1 year. In some people however, no significant improvement was seen. If there is no improvement after 12 weeks treatment it is likely that Adalimumab will be discontinued. How will my treatment be given? Adalimumab is given as a subcutaneous injection (just under the skin) either using a pre-filled pen or syringe (see information on administration for more details). The injections will be delivered to your home and you will be taught how to give the injection yourself. The first dose is 160mg as indicated, the second dose of 80mg is given 2 weeks later, with maintenance doses of 40mg being administered every 2 weeks How long will I take it for? Treatment will be given for one year in those patients who respond. If it helps keep your symptoms under control this may be a long term treatment. However, we will evaluate your response after you have been on the treatment for 12 months to decide if it should be continued. Does Adalimumab have any risks or side effects? Like all medicines, Adalimumab can have side effects. Most side effects are mild to moderate. However some may be serious and require treatment. Side effects may occur up to 5 months after the last treatment. Adalimumab is a new drug for the treatment of Crohn’s disease but has been used for other conditions such as joint problems for some time. Adalimumab is an immunosuppressant, this means that it weakens your immune system and may make you more susceptible to picking up infections. It is important that you take sensible precautions to prevent infections whenever you can. These include checking that your vaccinations are up to date (10 yearly Tetanus/Diptheria/inactivated Polio, yearly flu vaccination and 10 yearly Pneumovax) as well as washing your hands regularly and avoiding people with known contagious infections wherever possible. There have been reports of serious infections, including TB occurring during and after treatment with this type of drug, which can be fatal. Female patients should also ensure that their smear tests are up to date as this includes a check for the Human Papilloma Virus (that also causes genital warts) which can be made worse by Adalimumab. The following list describes side effects/risks according to their frequency, ie very common, common, uncommon and rare. Very common more than 1 in 10 patients experience problems with ❊ pain, swelling, redness or itching at the injection site Common (less that 1 in 10 patients) ❊ Lower and upper respiratory tract infections (such as bronchitis, pneumonia, cold, runny nose, sinus infections) ❊ Urinary tract infection, cold sores, shingles ❊ Dizziness including vertigo, headache ❊ Eye inflammation ❊ Nausea, diarrhoea, abdominal pain, mouth ulcers ❊ Raised liver blood tests ❊ Rash, itching , hair loss ❊ Fatigue ❊ Fever Uncommon (less than 1 in 100) ❊ Serious infections (such as sepsis (blood poisoning) joint infection, fungal infections). In a small number of patients this could be fatal. ❊ Anaemia, low white blood counts ❊ Allergic reaction ❊ Increased blood fats ie Cholesterol, appetite disorders ❊ Anxiety, depression, feeling sleepy and difficulty sleeping ❊ Nerve disorders (such as multiple sclerosis) and eye nerve inflammation, taste disturbances, Muscle weakness ❊ Vision disturbances, Ear discomfort ❊ Sensation of heart beating rapidly, high blood pressure ❊ Asthma, shortness of breath ❊ Abdominal symptoms (such as vomiting, indigestion, constipation, rectal bleeding) ❊ Skin disorders (such as psoriasis, eczema or infections) itchy rash, slow wound healing, warts ❊ Urinary disturbances (such as blood in urine, increased urinary frequency) ❊ Increased menstrual bleeding ❊ Flu like symptoms, chest pain, swelling of the feet Rare (less than 1 in 1000) ❊ Glaucoma ❊ Skin cancer ❊ Thyroid disorders ❊ Protein in urine It is important that you contact the Inflammatory Bowel Disease (IBD) Nurses/Doctor if you are worried that you may be experiencing any side effects. After reading this you may feel very anxious about taking this drug. Please remember that most people do not experience any side effects, but you should take them into account when deciding whether or not to have this treatment. If you have any concerns please contact the IBD team. Pregnancy/Breast Feeding (written by Crohns & Colitis UK) There have been several reports of successful pregnancies in women with Crohn’s on adalimumab before conception or during pregnancy. Because the drug is relatively new the clinical evidence is limited. Therefore, the manufacturers recommend that if you are a woman of childbearing age and are prescribed adalimumab, you should use adequate contraception to prevent pregnancy and continue to use it for at least 5 months after stopping taking adalimumab. However, in many cases the risks of active Crohn’s disease outweigh the risks of the drug, even during pregnancy. If you are thinking of trying for a baby, you should discuss this with your doctor. For example, if your Crohn’s has previously been severe and you do not want to wait before trying for a baby, your doctor may help you to weigh up the risk of stopping against the benefits of continuing with your treatment. If you become pregnant while using adalimumab there may be reasons why your doctor will advise you to continue with your treatment throughout the first 6 months of pregnancy, and it is not advisable to stop the drug without consulting your doctor. In the last 3 months of pregnancy adalimumab should only be used with caution, and on advice from your doctor, as it will cross the placenta and might affect the immune system of your baby. If you are considering pregnancy or find out you are pregnant, please let us know at the first opportunity so you can discuss your options with your consultant. Please let your Midwife, Obstetrician and other healthcare professionals know that you are taking adalimumab. The safety evidence for breast feeding is limited but European guidelines suggest that breast feeding is probably safe but you should discuss this with your Consultant or IBD Nurse to ensure that the latest evidence is taken into account before you make this important decision. If you have had adalimumab during your pregnancy, your baby should not be given any live vaccines (ie BCG, MMR) for the first 6 months. Is Adalimumab safe for everyone to take? Although it is safe for the majority of people, there are some cases where Adalimumab may not be given or is given with extreme caution: ❊ High risk of active infection ie chronic leg ulcers, recurrent chest infections, Tuberculosis (TB) ❊ Heart Failure ❊ Cancer within the previous 10 years ❊ Multiple Sclerosis We discuss the risks and benefits of individual cases in patients who are high risk. Everyone who is to be treated with Adalimumab will have a chest x ray and, if you have not had a BCG injection as a child, you may also have a blood test to rule out TB infection before treatment is started. In addition if you have a history of personal or close family history of TB, the pros and cons of treatment with Adalimumab will need to be discussed with your consultant. People born outside the UK in Countries where TB is common, may have to take a 3-6 month course of anti TB medicine. Immunosuppressant drugs can cause problems in people with Hepatitis or HIV. You will therefore have a blood test to check that you don’t have either of these conditions before starting this drug. Please tell your doctor if you have lived in a region where histoplasmosis (a disease caused by a type of fungus) is common (eg parts of USA, South America and Africa). Are there times when I should not give myself the injection? YES It is very IMPORTANT that you do not have your injection if you think that you may have any type of infection. Giving your treatment whilst you have any infection could make it a lot more serious and difficult to treat. We suggest that you ask yourself the following questions before giving your treatment. ❊ Do I have a temperature, cold or flu, cold sore, sore throat, skin infection, thrush, urine infection, abscess or pus leaking from fistulae? ❊ Have I been in contact with chicken pox or exposed to any live vaccines? ❊ Could I be pregnant? ❊ Is it possible that I have any other type of infection? If the answer is yes to any of the above you should not have your injection until you have spoken to the IBD Nurses. They will advise you on what action to take. Following your treatment Although you are having your treatment at home, we will still need to review you regularly in the out patient clinic as usual and you should attend these as requested. You should also have your blood tested every 2-3 months to monitor for signs of adverse effects. Can I take other medicines along with Adalimumab? Yes, you can take other medicines with Adalimumab. The only drug that you cannot take with Adalimumab is called Anakinra (Kineret), this is used in Rheumatoid Arthritis. It is important however, that your doctor is aware of any medication you are taking. This includes any over the counter medicines, supplements and herbal medicines. Tell your doctor or Pharmacist that you are receiving treatment with Adalimumab whenever you are prescribed or buy other medicines Patient Alert Card You will be given a patient alert card. Adalimumab stays in your body for 5 months and if you need any medical attention during that time it is important that medical staff are aware you have taken this drug. You should therefore keep this card with you at all times. It is very important that you tell any doctors involved in your treatment that you have been given Adalimumab. If you are worried about any new or unusual symptoms, please ring the IBD Nurses for advice. Can I have vaccines while on Adalimumab? If you are taking immunosuppressant drugs (ie Steroids, Azathioprine, Methotrexate, Infliximab or Adalimumab) your immune system may not be as strong as it would be without them. This means that you should not be given certain live vaccinations (see table). It should also be remembered that immunisation may not be as effective in immunocompromised people. Annual Flu vaccine and 10 yearly Pneumovax are safe and recommended. It is also recommended that you keep your 10 yearly Tetanus/Diptheria/ Polio vaccination programme up to date. Show this leaflet to your Practice Nurse before having any vaccinations or seek advice from your Consultant or IBD Nurse. Vaccination of people taking immunosuppressant drugs Live Vaccines Bacille Calmette Guerin (BCG MMR (Measles/Mumps/Rubella) Oral Typhoid X X Varicella (Adults) Killed (Inactivated) Vaccines Haemophilus influenzae( Hib) Hepatitis A Hepatitis B Influenza (inactivated) Japanese encephalitis Meningococcal Pneumococcal polysaccharide Polio (injection) Rabies Tetanus & Diptheria Pertussis (whooping cough) Typhoid (injection) Key X X Oral Polio * Yellow Fever X X = Not to be used ✓ = Recommended for all U = Use if needed as indicated for person not taking immunosuppressant drugs. X U U U ✓ U U ✓ U U ✓ U U Smoking: Bradford Teaching Hospitals NHS Foundation Trust is a smoke-free organisation. You are not permitted to smoke in any of the hospital buildings or grounds, with the exception of the smoking shelters which are provided for visitors and patients only. Wristbands: When you are in hospital it is essential to wear a wristband at all times to ensure your safety during your stay. The wristband will contain accurate details about you on it including all of the essential information that staff need to identify you correctly and give you the right care. All hospital patients including babies, children and older people should wear the wristband at all times. Where can I get more information? If you would like more information about Adalimumab or would like to discuss the treatment in more detail please contact the Inflammatory Bowel Disease Nurses on 01274 364822 Monday to Friday 0800 to 1530 or e-mail us at Ibd.Nurse@bthft.nhs.uk or leave a message on the answer phone. You are also advised to read the manufacturers advice leaflet on Adalimumab. By Textphone: We use the BT Text Relay service for patients who are deaf or have hearing difficulties. To contact us ring 18001 01274 364627 NHS 111 Useful websites: IBD Bradford: www.ibd.bthft.nhs.uk Abbvie (Manufacturers of Adalimumab) http://www.abbvie.com Crohns & Colitis UK www.crohnsandcolitis.org.uk This leaflet has been created & printed by the Medical Illustration Dept. © Bradford Teaching Hospitals NHS Foundation Trust. Author: Jane Healey / Deborah Patterson Review date: April 2016 MID Ref: 14031320