AB1013 CYCLOPHOSPHAMIDE VS AZATHIOPRINE FOR THE TREATMENT OF CONNECTIVE TISSUE RELATED INTERSTITIAL LUNG DISEASE

Background:

Interstitial lung disease (ILD) is a common morbidity and mortalitiy reason for connective tissue disorders (CTD). Data related to treatment options in the literature is limited

Objectives:

To describe the role of azathiopurine (AZA) in the first line treatment of connective tissue disease related interstitial lung disease CTD-ILD, comparing with cyclophosphamide (CYC)

Methods:

Between 2009 and 2019 all interstitial lung disease patients admitting rheumatology or pulmonology department were retrospectively evaluated. Among those patients,as an first line regimen treated with either azathiopurine or cyclophospamide were included. Primary end point was FVC percentage change at 6th month.

Results:

Among 328 CTD-ILD, 57 patients had AZA treat and 79 patients had CYC for the first line treatment. Patients treated with AZA tend to have limited disease and older age. CYC treatment had a mean of 2,41% increase in FVC but in AZA -1,44% decrease in FVC predicted (p:0,041) 5 major CTD groups were defined (systemic sclerosis (SSc), rheumatoid arthritis (RA), primer sjögren syndrome (pSS), dermatomyositis/ polimyositis (PM/DM), autoimmune features of intestitial lung disease (IPAF)). AZA had similar efficacy in, PM/DM and IPAF groups but worse outcome in SSc, RA and pSS compared to CYC.

Conclusion:

AZA treatment might be an option patients with limited disease extent and the diagnosis of PM/DM or IPAF. CYC was a better treatment in SSc, RA and pSS patients

References:

[1]Kocheril, S.V., et al.,Comparison of disease progression and mortality of connective tissue disease-related interstitial lung disease and idiopathic interstitial pneumonia.Arthritis Care & Research: Official Journal of the American College of Rheumatology, 2005.53(4): p. 549-557.

Table 1.

CYC: treatment responses of cyclophosphamide and azathiopurine regimens AZA: azathiopurine CYC: cyclophosphamide, AZA: azathiopurine CTD: connective tissue disease, SSc:Systemic Sclerosis, RA: Rheumatoid Arthritis, pSS: primary sjogren syndrome, DM/PM/ASS: Dermatomyositis / Polimyositis/Antisynthetase Syndrome, IPAF: Idiopahtic interstital fibrosis with autoimmune feautres, FVC: forced vital capacity

AZA(n:43)CYC (n:72)pProgression(overall)39,3%15,3%0,013SSc (n:47)60%11,9%0,029RA(n:16)62,5%25%>0,05pSS(n:16)71,4%11,1%0,035DM/PM/ASS(n:14)11,1%->0,05IPAF(n:20)28,6%23,1%>0,05FVC change (overall) (lt)-,129±0,7410,024±0,2490,189SSc (n:47)-0,086±1810,025±0,3510,286RA(n:16)-0,553±1,521-022±0,2620,341pSS(n:16)-0,328±0,2420,014±0,3130,167DM/PM/ASS(n:14)-0,0089±0,3700,120±0,0370,316IPAF(n:20)0,123±0,3200,120±0,1010,981FVC change (overall) (%)-1,44±10,652,41±7,550,041SSc (n:47)-3,00±3,672,23±8,270,031RA(n:16)-3,50±9,65-1,75±4,650,654pSS(n:16)-6,71±15,973,33±8,350,027DM/PM/ASS(n:14)0,00±11,854,40±2,700,313IPAF(n:20)2,06±9,045,28±6,700,380

Disclosure of Interests:

None declared

SAT0509 MYCOPHENOLATE MOFETIL VERSUS AZATHIOPURINE FOR THE MAINTENANCE TREATMENT OF CONNECTIVE-TISSUE RELATED INTERSTITIAL LUNG DISEASE FOLLOWING CYCLOPHOSPHAMIDE TREATMENT

Background:

Cyclophosphamide (CYC) had a good response rates when used as an induction regimen for the treatment of connective tissue related interstitial lung disease (CTD-ILD). But the safety profile of CYC necessitates the usage of a second line treatment for maintenance

Objectives:

To compare the effect of mycophonetil (MMF) and azatiyopurin (AZA) for maintanance therapy following cyclophsphomide treatment in CTD-ILD

Methods:

Between 2009 and 2019 all interstitial lung disease patients admitting rheumatology or pulmonology department were retrospectively evaluated and patients treated with cyclophospamide as an induction regimen and having not progression were selected. Among those, as a second line regimen treated with MMF or AZA were included. Primary end point was treatment responses at 6th months

Results:

68 patients treated with CYC for the first line treatment. 46 patients treated with either MMF (n:22) or AZA (n:24) for the maintenance. Scleroderma patients were the largest group and consituted 63% of the population. MMF group had worse FVC values and more involvement in lung paranchyme at the begining of the treatment. In univariate analysis FVC (lt) values and lung involvement (%) on HRCT at the start of the treatment, and disease subtype were associated significantly with treatment responses.After adjusted with these factors, in multivariate analysis, AZA treatment was associated with the increased risk of progression (odds ratio 5,8, 95% CI 1,061-31,09) as compared with MMF treatment

Conclusion:

MMF had better results compared to AZA in the treatment of CTD-ILD,after the usage of CYC treatment.

References:

[1]Barnes, H., et al.,Cyclophosphamide for connective tissue disease-associated interstitial lung disease.Cochrane Database Syst Rev, 2018.1(1): p. Cd010908.

Table 1.

Patient and disease characteristics at the start of the treatment and treatment responses at the 6th months of the treatment: FVC forced vital capacity

MMF (22)AZA (24)pLung involvement (%)36%23,3%0,022FVC (lt)1,962,550,021FVC (%)71%81%<0,001FVC change at 6th month (lt)-,02-0,190,051FVC change at 6th month (%)-0,42-5,810,068Progression23,8%50%0,118

Disclosure of Interests:

None declared

The WHO global alliance against chronic respiratory diseases in Turkey (GARD Turkey)

In order to prevent and control non-communicable diseases (NCDs), the 61st World Health Assembly has endorsed an NCD action plan (WHA resolution 61.14). A package for essential NCDs including chronic respiratory diseases (CRDs) has also been developed. The Global Alliance against Chronic Respiratory Diseases (GARD) is a new but rapidly developing voluntary alliance that is assisting World Health Organization (WHO) in the task of addressing NCDs at country level. The GARD approach was initiated in 2006. GARD Turkey is the first comprehensive programme developed by a government with all stakeholders of the country. This paper provides a summary of indicators of the prevalence and severity of chronic respiratory diseases in Turkey and the formation of GARD Turkey.

Effects of inactivated influenza virus vaccination on bronchial reactivity symptom scores and peak expiratory flow variability in patients with asthma

Even though annual influenza vaccinations are recommended by many authorities, some doctors may be reluctant to vaccinate asthmatic patients because of the risk of inducing bronchial reactivity and exacerbating the asthma. In this study we investigated the effect of inactivated trivalent influenza vaccine on airway reactivity symptom scores and peak expiratory flow (PEF) variability in 24 patients with mild stable asthma. Baseline spirometry and methacholine challenge tests were performed on all patients. Patients were then asked to record their peak expiratory flow every morning and evening, complete daily symptom score charts (morning tightness, daytime asthma, cough, and night asthma), and note bronchodilator usage for 1 week. After baseline measurements, the patients were allocated to inactivated vaccine and placebo in a random and single-blind manner. The lung function measurements and methacholine challenge tests were repeated 1 week after vaccination and placebo administration at the same time of day. PD20 (mg/mL) methacholine doses were 3.06+/-3.0 mg/mL before vaccination, 2.96+/-3.2 mg/mL after vaccination, and 2.76+/-2.91 mg/mL after placebo administration. There were no significant changes in PD20 methacholine after influenza vaccination (p>0.05). There were also no significant changes in symptom scores, bronchodilator usage, and PEFR after vaccination (p>0.05). None of the patients experienced significant local or systemic side effects after vaccination. Immunization with inactivated influenza vaccine does not induce clinical exacerbations of asthma or airway hyperreactivity in patients with mild asthma.

Hepatotoxicity of antituberculosis therapy (rifampicin, isoniazid and pyrazinamide) or viral hepatitis

SETTING

Department of Chest Diseases, Gazi University Faculty of Medicine and Atatürk Chest Diseases Hospital, Ankara, Turkey.

OBJECTIVE

The primary purpose of this study was to assess the contributory role of viral hepatitis in antituberculosis drug hepatotoxicity.

DESIGN

Serologic markers for viral hepatitis were studied in 57 patients who developed acute hepatitis during antituberculosis therapy with rifampicin and isoniazid.

RESULTS

Among 705 adult tuberculous patients, 57 (8.1%) developed acute hepatitis during therapy with rifampicin and isoniazid. Serologic markers confirmed the presence of hepatitis B in 6 (10.5%) and hepatitis C in 4 (7%) of the 57 patients. Acute hepatitis A was not diagnosed in any of the patients.

CONCLUSION

Hepatitis occurring during antituberculosis therapy may not be drug-induced in all patients. Apart from the other factors mentioned above the endemicity of viral hepatitis in developing countries could be responsible for the higher incidence of antituberculosis-drug hepatitis.