The Patient Reported Outcome Indices for Multiple Sclerosis (PRIMUS) is a disease specific patient-reported outcome questionnaire which measures the quality of life (QoL) of patients with multiple sclerosis. [1]
The measure contains an assessment of quality of life, activity limitations and symptoms. A higher score on any or all of these scales indicates a lower quality of life due to the disease. [2]
First published in 2009 by Galen Research and funded by Novartis Pharmaceuticals, the PRIMUS was developed in order to provide a more holistic view of the impact of MS on a patient. [1]
The measure has three scales: quality of life, symptoms and activity limitations, which are designed to be used together or as standalone measures. [2] The QoL and symptom scales are based on simple statements with dichotomous response options. Each scale has a total score which ranges from 0 to 22. The activity scale is based on 15 statements describing tasks. Patients are asked to rate their ability to perform these tasks on a scale from 1 to 3. The total score of the activities section ranges from 0 to 30. [3]
Since the development of the PRIMUS, it has been translated into several languages including Canadian English and French, French, German, Italian, Spanish, Swedish, US English, [3] Australian and New Zealand English and US Spanish. [4] This has allowed researchers to conduct studies for specific populations, such as Spain [5] and Europe. [6]
The PRIMUS has been utilized in clinical trials which assess the efficacy of a treatment or medication. If a patient's score on the PRIMUS changes after a trial has taken place, it is inferred that the trial has had an effect on the patient's quality of life. PRIMUS has been used to assess the efficacy of fingolimod [7] [8] [9] and rivastigmine. [10]
Multiple sclerosis (MS) is an autoimmune disease in which the insulating covers of nerve cells in the brain and spinal cord are damaged. This damage disrupts the ability of parts of the nervous system to transmit signals, resulting in a range of signs and symptoms, including physical, mental, and sometimes psychiatric problems. Specific symptoms can include double vision, vision loss, eye pain, muscle weakness, and loss of sensation or coordination. MS takes several forms, with new symptoms either occurring in isolated attacks or building up over time. In the relapsing forms of MS, between attacks, symptoms may disappear completely, although some permanent neurological problems often remain, especially as the disease advances. In the progressive forms of MS, bodily function slowly deteriorates and disability worsens once symptoms manifest and will steadily continue to do so if the disease is left untreated.
Fingolimod, sold under the brand name Gilenya, is an immunomodulating medication, used for the treatment of multiple sclerosis. Fingolimod is a sphingosine-1-phosphate receptor modulator, which sequesters lymphocytes in lymph nodes, preventing them from contributing to an autoimmune reaction. It has been reported to reduce the rate of relapses in relapsing-remitting multiple sclerosis by approximately one-half over a two-year period.
A patient-reported outcome (PRO) is a health outcome directly reported by the patient who experienced it. It stands in contrast to an outcome reported by someone else, such as a physician-reported outcome, a nurse-reported outcome, and so on. PRO methods, such as questionnaires, are used in clinical trials or other clinical settings, to help better understand a treatment's efficacy or effectiveness. The use of digitized PROs, or electronic patient-reported outcomes (ePROs), is on the rise in today's health research setting.
Multiple sclerosis (MS) is a chronic inflammatory demyelinating disease that affects the central nervous system (CNS). Several therapies for it exist, although there is no known cure.
PatientsLikeMe (PLM) is an integrated community, health management, and real-world data platform. The platform currently has over 830,000 members who are dealing with more than 2,900 conditions, such as ALS, MS, and epilepsy. Data generated by patients themselves are collected and quantified with the goal of providing an environment for peer support and learning. These data capture the influences of different lifestyle choices, socio-demographics, conditions and treatments on a person's health.
In general, quality of life is the perceived quality of an individual's daily life, that is, an assessment of their well-being or lack thereof. This includes all emotional, social and physical aspects of the individual's life. In health care, health-related quality of life (HRQoL) is an assessment of how the individual's well-being may be affected over time by a disease, disability or disorder.
The Migraine Specific Quality of Life (MSQoL) is a patient-reported outcome measure which assesses the quality of life of migraineurs. It is a 25-item questionnaire which is filled out by the patient and is used to determine how the patient's life has been affected by their migraines.
The Ankylosing Spondylitis Quality of Life (ASQoL) questionnaire is a patient-reported outcome (PRO) measure which assesses the quality of life of patients with ankylosing spondylitis. The ASQoL is based on the needs-based quality of life model. It is a self-administered questionnaire which contains 18 items and takes up to four minutes to complete.
The Quality of Life Assessment of Growth Hormone Deficiency in Adults (QoL-AGHDA) is a disease specific patient-reported outcome measure which measures the effect growth hormone deficiency has on adult patients. The score of the QoL-AGHDA is used to determine the extent to which growth hormone deficiency has affected the patient’s quality of life, and what treatment can then be administered. A high score on the QoL-AGHDA indicates that the patient suffers from many symptoms and therefore has a lower quality of life.
The Cambridge Pulmonary Hypertension Outcome Review (CAMPHOR) is a disease specific patient-reported outcome measure which assesses quality of life of patients with pulmonary hypertension (PH). It was the first pulmonary hypertension specific questionnaire for assessing patient reported symptoms, quality of life and functioning.
The Psoriatic Arthritis Quality of Life (PsAQoL) measure is a disease specific patient-reported outcome measure which measures the effect that psoriatic arthritis has on a patient’s quality of life.
The Asthma Life Impact Scale (ALIS) measure is a disease-specific patient reported outcome questionnaire which assesses the impact that asthma has on a patient’s quality of life.
The Quality of Life In Depression Scale (QLDS), originally proposed by Sonja Hunt and Stephen McKenna, is a disease specific patient-reported outcome which assesses the impact that depression has on a patient's quality of life. It is the most commonly used measure of quality of life in clinical trials and studies of depression. The QLDS was developed as a measure to be used in future clinical trials of anti-depressant therapy.
The Quality of Life Index for Atopic Dermatitis (QoLIAD) is a disease specific patient reported outcome which measures the impact that atopic dermatitis (AD) has on a given patient's quality of life.
The Psoriasis Index of Quality of Life (PSORIQoL) is a patient-reported outcome measure which determines the quality of life of patients with psoriasis. It is based on a needs-based approach to quality of life.
The Recurrent Genital Herpes Quality of Life (RGHQoL) measure is a patient-reported outcome measure which determines the impact that recurrent genital herpes has on a patient’s quality of life. It is a 20 item questionnaire with items such as “Herpes makes it difficult for me to plan ahead” and “I worry that sex will trigger an outbreak.”. Lower scores on the RGHQoL indicate a higher negative impact on quality of life.
The Unidimensional Fatigue Impact Scale (U-FIS) is a disease-specific patient-reported outcome measure which measures the impact of multiple sclerosis related fatigue. It is a 22-item unidimensional scale which is based on needs-based quality of life theory.
Ozanimod, sold under the brand name Zeposia, is an immunomodulatory medication for the treatment of relapsing multiple sclerosis and ulcerative colitis. It acts as a sphingosine-1-phosphate receptor (S1PR) agonist, sequestering lymphocytes to peripheral lymphoid organs and away from their sites of chronic inflammation.
There are several ways for pharmaceuticals for treating multiple sclerosis (MS) to reach the market.