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Clinical Trial Details — Status: Active, not recruiting

Administrative data

NCT number NCT02901886
Other study ID # H-16022001
Secondary ID
Status Active, not recruiting
Phase N/A
First received
Last updated
Start date October 2016
Est. completion date January 2021

Study information

Verified date January 2020
Source Glostrup University Hospital, Copenhagen
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This study aims to test the effect of an intensive smoking cessation intervention (motivational counseling combined with nicotine replacement) on smoking cessation and disease activity in patients with Rheumatoid Arthritis (RA). Half of the patients will participate in a smoking cessation intervention; the other half will receive usual treatment.


Description:

Tobacco smoking is a well-known environmental risk factor for developing rheumatoid arthritis (RA). The onset of RA can occur in all age groups, with the majority being women aged 50-60 years. RA is a chronic inflammatory disease and cannot be cured. However, the activity of the disease can be reduced by medication. During periods with high disease activity, patients experience increased pain and fatigue and subsequent restrictions in social life, psychical activity and activities of daily life. Furthermore, the inflammatory process underlying RA can cause pain, fatigue, reduced health-related quality of life and reduced physical function. Patients with RA are at increased risk of cardiovascular diseases similar to the risk demonstrated in patients with diabetes. Furthermore, several studies indicate that smokers with inflammatory arthritis tend to experience more pain and fatigue, and a reduced quality of life compared to non-smokers.

Aim: This randomized controlled trial (RCT) in patients with RA aims to examine the effect of intensive smoking cessation intervention (motivational counselling combined with tailored nicotine replacement therapy) versus standard care on smoking cessation, and consequently on disease activity. Secondary objectives are to explore the effect on flare, risk factors for CVD, lung function, physical function, HR-QoL, pain and fatigue in patients with RA.

Material and Methods Trial design: The trial is an international, multicentre, randomized RCT in which daily smokers with RA in remission or with low-moderate disease activity ≤ 5.1 DAS28 (Disease Activity Score - based on 28 joints assessment, serum-C-reactive protein (CRP) and patient's Global assessment of a visual analogue scale (VAS)) will be randomized 1:1 to either an intervention group or to a control group. Patients will be followed for 58 weeks, including the 6-week intervention period and 3 months, 6 months and 12 months into the post-intervention follow-up period.

Study setting: We will recruit patients from the Center for Rheumatology and Spine Diseases, Rigshospitalet, Denmark and from the Preventive Cardio-Rheuma Clinic, Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway.

Randomization and blinding: Immediately after collecting baseline data using stratified block randomization (block size 6-10) participants will be randomized to either 1) the intervention group or 2) the control group. The stratification variables are trial site and Anti-cyclic citrullinated peptide (Anti-CCP status). The allocation sequence is generated using computer-generated random numbers. Participants will be informed about their group allocation directly after randomization. For participants randomized to the smoking cessation intervention group, the first intervention meeting will be scheduled as soon as possible, preferably immediately after randomization. It is not possible either to blind participants to their allocated intervention or to blind the project nurses performing the intervention. The primary outcomes will be assessed by blinded assessors and smoking cessation will be self-reported by participants and validated biochemically.

Data collection:All outcomes are assessed at three months (18 weeks post-intervention), 6 months (30 weeks post-intervention) and 12 months follow-up (58 weeks post-intervention).

We will retrieve data from the DANBIO database regarding the participants' pharmacological treatment, duration of RA, CRP levels, IgM rheumatoid factor and Anti-CCP status. Additional descriptive data include participants' demography, socio economic situation, lifestyle (smoking and alcohol) and consumption of pain killers obtained via a questionnaire. Co-morbidities are assessed using the Charlson's Co-morbidity Scale obtained from the electronic patient journal.

All participant-reported questionnaires will be completed electronically on a tablet connected to DANBIO, which will be used only for participants in the trial. Blood samples will be destroyed immediately after the analyses are done.

All outcomes excluding patient-reported outcomes will be assessed by project nurses blinded to the patients' group allocation.

Ethics, confidentiality and dissemination: The trial will be carried out in accordance with the Helsinki Declaration. The project has been approved by The Regional Committee on Health Research Ethics (H-16022001) and the Danish Data Protection Agency (I-suite number 04849). The trial has been reported to Clinicaltrials.gov (NCT02901886). All data and information collected during the trial will be kept confidential and in accordance with the requirements of the Danish and Norwegian Data Protection Agencies and Good Clinical Practice.


Recruitment information / eligibility

Status Active, not recruiting
Enrollment 150
Est. completion date January 2021
Est. primary completion date April 2020
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion criteria Patients will be included in the study if they have RA as defined by the American College of Rheumatology (ACR) 1987 criteria and/or European League Against Rheumatism (EULAR) 2010 criteria (32, 33), >18 years of age, smoking tobacco daily, are able to understand and speak Danish or Norwegian, respectively. Furthermore, patients need to for the past three months to have been in clinical remission or low-moderate disease activity (DAS28 = 5.1) and in stable anti-rheumatic medical treatment as documented in 1) the DANBIO registry in Denmark, or 2) the electronic patient journal, Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway.

Exclusion criteria Patients will be excluded from the study if they have had a change of dose or preparation in anti-rheumatic medical treatment within the previous 3 months, or a scheduled change in anti-rheumatic medical treatment, including glucocorticoid injection during the previous month, are cognitively or otherwise unable to give informed consent, are pregnant or breastfeeding.

Excluded patients, and eligible patients who do not want to participate, will be registered in one of the following three categories 1) not meeting the inclusion criteria 2) refused to participate 3) other reasons.

Study Design


Related Conditions & MeSH terms


Intervention

Behavioral:
Intensive smoking cessation intervention
The intervention includes 1) Individual motivational counseling (5 meetings within 6 weeks) in combination with 2) nicotine replacement therapy.

Locations

Country Name City State
Denmark Center for Rheumatology and Spine Diseases, Rigshospitalet Glostrup
Norway Preventive Cardio-Reuma Clinic, Diakonhjemmet Oslo

Sponsors (5)

Lead Sponsor Collaborator
Glostrup University Hospital, Copenhagen Region Capital Denmark, The Danish Rheumatism Association, The Novo Nordic Foundation, TrygFonden, Denmark

Countries where clinical trial is conducted

Denmark,  Norway, 

Outcome

Type Measure Description Time frame Safety issue
Primary Self-reported continuous smoking cessation validated by exhaled carbon-monoxide at 3 months follow-up The participants' smoking status will be monitored by self-reported continuous smoking cessation validated by exhaled carbon monoxide (CO) in breath (CO-Check, NEOMED GmbH; Germany). Carbon monoxide values > 10 parts per million (ppm) indicate tobacco smoking 3 months post-intervention
Primary EULAR clinical response (an improvement in DAS28 of >0.6) at 3 months follow-up The recommended EULAR clinical response in relation to disease activity will be assessed using DAS28 at 3 months post-intervention. The DAS28 score consists of four elements; CRP, number of swollen joints, number of painful joints (maximum 28) and a Global General Health VAS score. The joint count and Global General Health are assessed by both the participant and a project nurse blinded to group allocation 3 months post-intervention
Secondary Self-reported smoking status at 6 and 12 months post-intervention Smoking status will be monitored by self-reported continuous smoking cessation and biochemically validated by exhaled CO. Continuous smoking cessation will be measured by asking the patients who reports 7-day point prevalence (7 day time-line follow back) how many days they have not been smoking. Smoking status information is self-reported by the participant and documented in the smoking diary at 3 months post intervention (week 18). To be grouped as having "stopped smoking" both self-reported and biochemical analysis should indicate this. 6 and 12 months post-intervention
Secondary EULAR repsonse at 6 and 12 months post-intervention Disease activity will be registered by DAS28, as described above in primary outcome. 6 and 12 months post-intervention
Secondary Disease activity measured by DAS28 at 3, 6 and 12 months post-intervention DAS28 as described above. 3, 6 and 12 months post-intervention
Secondary Change in number of swollen and tender joints at 3, 6 and 12 months post-intervention Assessed by a person blinded to the intervention 3, 6 an 12 months post-intervention
Secondary Physician and patient Global VAS Assessed by a person blinded to the intervention 3, 6 and 12 months post-intervention
Secondary C-reactive protein (CRP) Measured using blood sample. 3, 6 and 12 months post-intervention
Secondary Patient assessed disease activity by the FLARE Instrument Participants will be asked to answer the FLARE instrument (FI), which is a patient self-assessment questionnaire for detecting changes in disease activity among patients with RA. It is designed to detect both past and present disease activity. The questionnaire consists of 12 questions answered on a Likert scale (0 = completely agree, 10 = completely disagree). Higher scores indicate flare. A score > 2.5 indicates a flare. 3, 6 and 12 months post-intervention
Secondary Blood pressure and pulse • Blood pressure (mmHg) and heart rate (beats/min) will be measured after 5 minutes of rest (supine position) (Mobil-O-Graph, IEM; Germany). If it exceeds 140/90 mmHg, two additional measurements will be performed and the mean of the last two will be registered. 3, 6 and 12 months post-intervention
Secondary Arterial stiffness • Arterial stiffness will be measured by pulse wave velocity (PWV) (Mobil-O-Graph, IEM; Germany). High PWV is defined as > 9.9 m/s 3, 6 and 12 months post-intervention
Secondary Serum lipids Serum lipids (TC, HDL-c, LDL-c and TG) will be measured in venous blood samples. 3, 6 and 12 months post-intervention
Secondary HbA1c Will be measured using blood sample. 3, 6 and 12 months post-intervention
Secondary Waist circumference • Waist circumference will be evaluated by a tape measure in centimetres (cm) while the patient is standing. For women with a waist circumference >80 cm there is an increased risk of CVD while the risk is further increased for waist circumference >88 cm. For men the measures are defined as >94 cm and >102 cm, for increased, and further increased, risk of CVD, respectively. 3, 6 and 12 months post-intervention
Secondary Body weight • Body weight will be measured to the nearest 0.1 kg (with ordinary clothes, but without shoes) (OBH Nordica, Slim Light, 150 kg, Taastrup Denmark). 3, 6 and 12 months post-intervention
Secondary Lung function FEV1 will be measured by spirometer (EasyOneTM, Model 2001 diagnostic Spirometer, Model 2010 Cradle, NDD Medizintechnik AG; Switzerland). 3, 6 and 12 months post-intervention
Secondary Physical function HAQ is a standardized questionnaire for assessing disability and physical function in patients with RA. The instrument contains 20 items with four possible answers in eight categories; dressing, rising from a seat, eating, walking, personal hygiene, stretching for an object, grabbing an object and everyday activities. The questionnaire also includes VAS scales for pain, fatigue and general health. In DANBIO five additional questions have been added. They also have four possible answers and relate to physical function, sleep, anxiety and depression. In this study we will use the 25 questions as used in DANBIO. 3, 6 and 12 months post-intervention
Secondary Health-related quality of life HR-QoL is measured using the following two questionnaires:
SF-36 is a generic instrument measuring HR-QoL by 36 items on eight scales. The scales are; physical function, physical activity, limitations, pain, general health, vitality, social function, emotional activity limitations and mental health; they are summarized in two summary scales; 1) the physical component scale (PCS) and 2) the mental component scale (MCS).
The questionnaire contains five items (movement, personal care, usual activities, pain and anxiety/depression) each with five possible ratings.
3, 6 and 12 months post-intervention
Secondary Pain Pain Pain related to RA is self-reported by participants using the VAS. Participants rate their subjectively experienced level of pain from 0-10. Zero represents "no pain" and 10 represent the "worst imaginable pain". The scale is included in HAQ. 3, 6 and 12 months post-intervention
Secondary Fatigue The BRAF-NRS assesses fatigue in patients with RA. It includes three questions concerning fatigue (level, effect and coping) over the previous seven days. Participants rate fatigue on a scale from 0-10 . Zero represent "no fatigue" and 10 represent the "worst fatigue". 3, 6 and 12 months post-intervention
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