Background

to date, no consensus exists on how aggressively and timely treat relapsing-remitting multiple sclerosis (RRMS) patients.

Objectives

To evaluate disability trajectories in a cohort of RRMS patients stratified according to two different disease modifying therapy (DMT) strategies, early intensive treatment (EIT) or moderate-efficacy treatment followed by escalation to higher-efficacy DMT (ESC).

Methods

RRMS patients with ≥5-year follow-up and ≥3 visits after start DMT, and a first visit within 3 years from disease onset were selected from the Italian MS Registry. EIT group included patients who received, as first DMT, fingolimod, natalizumab, mitoxantrone, alemtuzumab, ocrelizumab, cladribine. ESC group included those who received the high efficacy DMT after ≥1 year of glatiramer acetate, interferons, azathioprine, teriflunomide or dimethylfumarate treatment. Patients were 1:1 propensity score(PS)-matched for characteristics at the first DMT. The follow-up time from the first DMT start has been segmented into 12-month periods. The disability trajectories were evaluated by applying a longitudinal model for repeated measures with an autoregressive variance-covariance structure. The effect of early versus late start of high-efficacy DMT was assessed by the mean annual EDSS changes compared to baseline values (delta-EDSS) in EIT and ESC groups.

Results

The study cohort included 2,652 RRMS patients from 62 Italian MS centers. The PS matching procedure produced 365 pairs. The median (IQR) follow-up after the first DMT start was 8.5 (6.5–11.7) years. All of the ESC patients escalated to a higher-efficacy DMT after a median time of 5.1 (3.1–8.4) years. The estimated baseline EDSS with relative confidence interval (95% CI) value was 2.52 (2.33-2.71) in the ESC group and 2.45 (2.26-2.64) in the EIT group. Mean delta-EDSS at each 12 month period were all significantly (p<0.02) higher in the ESC group compared to the EIT group. In particular, the mean delta-EDSS differences between the two groups tend to increase from 0.1 (0.01-0.19, p=0.03) at 1 year to 0.30 (0.07-0.53, p=0.009) at 5 years and to 0.67 (0.31-1.03, p=0.0003) at 10 years.

Conclusions

Our results indicate that EIT strategy is more effective than ESC strategy in controlling disability progression and the effect tends to increase over time despite patients in the ESC group escalated to a higher-efficacy DMT.

Background

Background: Except for ocrelizumab, treatment options in primary progressive multiple sclerosis (PPMS) are lacking, as randomized clinical trials failed to show efficacy in reducing disability progression in this patient population.

Objectives

Objective: To investigate the effectiveness of disease-modifying treatment (DMT) on hard disability outcomes (EDSS 6 and 7) in a real-life population of PPMS patients.

Methods

Methods: Using the Italian MS Registry, we selected PPMS patients with at least three EDSS evaluations and three years of follow-up. Study baseline was defined as the first EDSS evaluation for untreated patients and the date of the first DMT initiation for treated patients. The impact of DMT on the risk of reaching EDSS 6 and 7 was assessed as a dichotomous variable (yes versus no) and as a time-dependent covariate through multivariable Cox regression models (adjusted for age at baseline, sex, first EDSS score, symptoms at onset, annualized visit rate, annualized relapse rate). We compared outcomes with an as-treated analysis and used propensity-score matching (PSM) to select cohorts with comparable baseline characteristics. DMT-exposure was also evaluated in terms of quartiles of exposure.

Results

Results: Of the 1214 patients we included 671 females, mean ± Standard Deviation baseline age 48.7 ± 11.1 years, mean EDSS score 4.1 ± 1.8, 790 (65%) received a DMT during the follow-up (57% platform and 43% highly active treatments). In the whole sample, after a mean follow-up of 11.6 ± 6.3 years, 994 (82%) patients reached EDSS 6 and 539 (44%) EDSS 7. In the multivariable Cox regression models, the use of DMT analyzed as a dichotomous variable did not influence the risk of reaching EDSS 6 (aHR=1.1, 95% CI 0.95-1.28, p=0.181) and EDSS 7 (aHR = 0.93, 95% CI 0.77-1.12. p = 0.454). However, longer DMT exposure significantly reduced the risk of reaching EDSS 7 (aHR = 0.73, 95% CI 0.56-0.95, p =0.021). Of note, patients in the upper quartile of DMT exposure compared with those with shorter DMT exposure were younger at baseline (mean age 44.1 ± 10.6 years; p < 0.001) and received the first DMT closer to the disease onset (mean time to first DMT 6.8 years ± 6.1 ; p=0.002). All these findings were confirmed in the PSM analysis.

Conclusions

Conclusion: Our results suggest that longer exposure to DMT may delay time to wheelchair in PPMS patients. Moreover, treating younger patients and reducing the delay to treatment initiation may improve the patients’ long-term disability outcomes. To optimize treatment decision-making in PPMS further profiling of the best candidates to treatment is needed.

Background

Worldwide multiple sclerosis (MS) centers have coordinated their efforts to use data acquired in clinical practice for real-world observational studies.

Objectives

In this retrospective study, we aim to harmonize outcome measures, and to evaluate their heterogeneity within the Rising Italian Researchers in MS (RIReMS) study group.

Methods

RIReMS members filled in a structured questionnaire evaluating the use of different outcome measures in clinical practice. Thereafter, thirty-four already-published papers from RIReMS centers were used for heterogeneity analyses, using the DerSimonian and Laird random-effects method to compute the between-study variance (τ²).

Results

Based on questionnaire results, we defined basic modules for diagnosis and follow-up, consisting of outcome measures recorded by all participating centers at the time of diagnosis, and, then, at least annually; we also defined more detailed/optional modules, with outcome measures recorded less frequently and/or in the presence of specific clinical indications. Looking at heterogeneity, we found 5-year variance in age at onset (ES=27.34; 95%CI=26.18, 28.49; p<0.01; τ²=4.76), and 7% in female percent (ES=66.42; 95%CI=63.08, 69.76; p<0.01; τ²=7.15). EDSS variance was 0.2 in studies including patients with average age <36.1 years (ES=1.96; 95%CI=1.69, 2.24; p<0.01; τ²=0.19), or from 36.8 to 41.1 years (ES=2.70; 95%CI=2.39, 3.01; p<0.01; τ²=0.18), but increased to 3 in studies including patients aged >41.4 years (ES=4.37; 95%CI=3.40, 5.35; p<0.01; τ²=2.96). The lowest variance of relapse rate was found in studies with follow-up duration ≤2 years (ES=9.07; 95%CI=5.21, 12.93; p=0.02; τ²=5.53), whilst the lowest variance in EDSS progression was found in studies with follow-up duration >2 years (ES=5.41; 95%CI=3.22, 7.60; p=0.02; τ²=1.00).

Conclusions

We suggest common sets of biomarkers to be acquired in clinical practice, that can be used for research purposes. Also, we provide researchers with specific indications for improving inclusion criteria and data analysis, ultimately allowing data harmonization and high-quality collaborative studies.

Background

The kappa index, calculated by dividing the cerebrospinal (CSF)/serum kappa free light chain (KFLC) ratio by the CSF/serum albumin ratio, is gaining increasing interest as an indirect marker of intrathecal activation of the humoral immune response. The demonstration of intrathecal synthesis is of particular relevance in the diagnostic work-up of suspected Multiple Sclerosis. However, the lack of consistent data on inter-laboratory agreement in CSF and serum KFLC measurements is one of the factors that hamper the use of kappa index in routine practice.

Objectives

Aim of this study was to assess agreement in CSF and serum KFLC measurements and kappa index values across different laboratories.

Methods

Fifteen paired CSF and serum samples were analyzed in all participating laboratories (nr=8). Four centers used Binding Site instruments and assays, 3 centers used Siemens instruments and assays, and one center used a Siemens instrument and a Binding Site assay.

Absolute individual agreement between laboratories was calculated using a two-way mixed effects intraclass correlation coefficient (ICC). Cohen's kappa coefficient was used to measure inter-laboratory agreement on positive (≥5.8) kappa index values.

Results

Within Binding Site laboratories, ICC for KFLC measurements was 0.96 (95%CI: 0.9-0.98) for CSF, 0.93 (95%CI: 0.63-0.98) for serum and 0.97 (95%CI: 0.94-0.99) for kappa index values. Within Siemens laboratories, ICC for KFLC measurements was 0.99 (95%CI: 0.97-100) for CSF, 0.93 (95%CI: 0.48-0.98) for serum and 0.95 (95%CI: 0.89-0.98) for kappa index values. ICC calculated for all laboratories was 0.93 (95%CI: 0.87-0.97) for CSF KFLC, 0.81 (95%CI: 0.53-0.93) for serum KFLC and 0.65 (95%CI: 0.43-0.84) for kappa index. Cohen's kappa coefficient for a positive kappa index was 0.89 across Binding Site laboratories, 0.70 across Siemens laboratories, and 0.77 across all laboratories.

Conclusions

There was an excellent agreement in CSF KFLC measurements and in kappa index values within laboratories using the same instrument and assay (Binding Site or Siemens), while serum KFLC measurements were less concordant. Agreement across all laboratories was decreased when including the laboratory using a Siemens instrument coupled with a Binding Site assay in the analyses. Concordance for a positive kappa index was substantial across all laboratories and within Siemens laboratories, and very good within Binding Site laboratories.

Background

the management of MS patients (pts) who show disease activity after 2 alemtuzumab (ALM) courses represents an unsolved issue. No real-life data about the switch to ocrelizumab (OCR) have been reported yet.

Objectives

To describe efficacy and safety outcome of OCR patients switching from ALM due to persistence of disease activity after ALM

Methods

MS pts who switched from ALM to OCR from March 2019 to March 2020 were retro- and prospectively recruited from different Italian MS Centers. Clinical, immunological and neuroradiological data about ALM treatment period, ALM-OCR interval and OCR treatment period were collected.

Results

we recruited 23 MS pts [mean age: 35.7(SD±6.8); female, 40.1%; Relapsing Remitting, (RR): 75.8%, active Secondary progressive, (aSP): 24.2%; mean time interval (days) from II ALM course: 87.4(SD±108); cumulative number of relapses: 21; mean number of new T2 and Gd+ lesions: 4.1(SD±4.5) and 1.6(SD±3.1); median EDSS:3(range 1-7)]. The mean follow-up (FU) from OCR start was 7.9±7.4 months. Efficacy: 4 (17.4%) pts had a relapse after OCR start (1 pt relapsed between the first and the second OCR infusion and 3 pts after 3, 11 and 15 months from OCR start respectively), with complete recovery after steroid treatment. 4 (17.4%) pts showed radiological activity with no clinical correlates at 3 months (n=2), 4 months (n=1) and 9 months (n=1). EDSS was stable except for 1 aSP patient who showed 1-year disability progression. Safety: I) Infusion Associated Reactions (IARs) occurrence was significantly lower with respect to alemtuzumab courses (p<0.05); (ii) infections: mild upper airways (n=1), urinary infections (n=1), appendicectomy (n=1) and fever due to probable Sars-Cov2 infection (n=1). For 12 pts, data about immunophenotype were available. Of them, no pts showed T CD4+ cell count decrease <200 cell/mm3 at 3, 6-months and 1-year FU; complete B CD19+ cell depletion (<5 cell/mm3) was confirmed at 3, 6-months and 1-year FU. 10 (43.4%) pts developed hypogammaglobulinemia without developing associated infectious events. C) Autoimmunity: no alemtuzumab-related new complications occurred.

Conclusions

short-term FU seems to suggest that the switch to OCR in MS patients who showed disease activity after 2 ALM courses is characterized by a good safety and efficacy profile, although clinical and neuroradiological activity can be detected both in an early and in a later phase of treatment. Longer follow-up is warranted and recruitment is still ongoing.

Background

Fabry disease (FD) is a rare panethnic x-linked lysosomal storage disorder that can mimic MS, and thus must be considered in differential diagnosis. While clinical profile and MRI studies can overlap, some other considerations help distinguish them, like presence of CSF oligoclonal bands and medullary demyelinating lesions for MS and multi-organ involvement and positive familiar history for FD. In our center a patient was diagnosed with MS in 2004, and with FD in 2015, due to in depth-analysis following the clue of a positive family history.

Objectives

To identify the possible presence of unacknowledged FD in a cohort of Italian patients previously diagnosed with CIS or MS.

Methods

We enrolled consecutive CIS and MS patient that fulfilled McDonald revised criteria referred to our center. In female subjects, the GLA gene was analyzed by PCR and sequencing of the entire coding region. In male subjects the concentration of the alpha-galactosidase enzyme in dry blood spot was measured with fluorescence spectroscopy. For these purposes we used Centogene diagnostic kit for Fabry disease.

Results

411 patients (300 females) were enrolled, 21 with a diagnosis of CIS and 390 with definite MS, mean age 45.5 years (SD:12.0), mean disease duration 15.3 years (SD:10.1), mean EDSS 2.5 (SD:1.9). No one of them presented pathogenic mutations of GLA gene or alpha-galactosidase deficiencies.

Conclusions

Although the diagnosis of FD must be ruled out when studying a patient with suspected MS, the systematic genetic or enzymatic analysis of every patient doesn’t appear necessary in everyday clinical practice. The analysis of GLA gene and of alpha-galactosidase activity should be reserved for patients with elements suspicious for FD, like a positive family history and multi organ involvement (especially renal impairment and angiokeratomas). Our patient with both the diagnosis, other than positive family history, later developed proteinuria as systemic dysfunction; she also showed demyelinating lesions on brain and spinal cord MRI, sometimes with Gadolinium enhancement, and intrathecal synthesis of oligoclonal bands (type 3). Clarifying the correct diagnosis is of fundamental importance due to the different therapeutic approaches.

Background

Background. Lymphopenia monitoring during treatment with disease modifying drugs for MS is relevant because of the potential increased risk of infections. Lymphopenia is an anticipated effect of cladribine (CLD) treatment, given its mechanism of action.

Objectives

Objectives. We aimed to i) characterize the absolute lymphocyte count (ALC) changes, and ii) evaluate the risk of infections in CLD-treated RRMS patients. ALCs were graded according to the Common Terminology Criteria for Adverse Events (CTCAE v5.0).

Methods

Materials and methods. In this observational multicentre study, demographic, clinical and MRI data of the patients included in the Free Of Charge CLD program were collected. ALC was also collected at baseline (before therapy initiation) and at month 3, 7, 12, 15, 19 and 24.

Results

Results. 236 patients were enrolled in 56 Italian MS Centres (71% F; mean age: 39+11.5 years; mean disease duration: 10+8.5 years). The median baseline EDSS was 3.0 (quartiles 1.5-3.5; range 0-6.5). 53 patients (22.5%) were treatment naïve, 107 (45.3%) switched to CLD from first line DMDs (for inefficacy), 76 (32.2%) switched to CLD after a second line therapy (33/76 for safety reason, 43/76 for inefficacy). Mean follow up was 12.2+5 months. At baseline, median ALC was 1615.0 cell/mm³ (quartiles, 1300.0-2200.0). At month 3, ALC was available in 190/236 and 101/190 had lymphopenia: 12 (6.3%) grade 3, 47 (24.7%) grade 2 and 42 (22.1%) grade 1. Among patients presenting grade 3 at month 3, only one had persistent ALC <500 cell/mm³ at month 7. At month 7, ALC was available in 180/236 and 77/180 had lymphopenia: 1 (0.6%) grade 4, 1 (0.6%) grade 3, 43 (23.9%) grade 2 and 32 (17.8%) grade 1. Up to date, 159/236 patients were re-treated. No retreatment was delayed because of grade 4 lymphopenia. No patient presented grade 4 lymphopenia at month 15, 6/89 (6.6%) experienced grade 3, 37/89 (40.7%) grade 2, 17/89 (18.7%) grade 1. At month 19, 1/38 (2.6%) presented grade 3 lymphopenia, 11/38 (29.0%) grade 2 and 9/38 (23.7%) grade 1. At month 24, 1/9 (11.1%) patient presented grade 3 and 1/9 (11.1%) presented grade 4 lymphopenia. During treatment course, 15 patients experienced infections (1 VZV, 3 HSV), none occurring in grade 3 or 4 lymphopenia.

Conclusions

Conclusions. In our study, the risk of grade 3 and 4 lymphopenia was lower compared to that observed in RCT. Moreover, grade 3 lymphopenia was transient in the majority of the patients. Compared to RTC, a more favourable CLD safety profile emerged in our study.

Background

The advent of oral first-line disease-modifying therapies (DMTs) for relapsing-remitting multiple sclerosis (RRMS) has expanded considerably the therapeutic landscape. However, here is an important need to gather real-world evidence data regarding long-term treatment effectiveness and safety in comparison to the old first-line injectables DMTs.

Objectives

To compare old injectable and oral first line DMTs for time to first relapse, time to confirmed disability progression (CDP), and time to discontinuation in a cohort of RRMS patients extracted from the Italian MS Registry.

Methods

Multicentre, observational, retrospectively acquired and propensity-adjusted cohort study of RRMS-naïve patients in the Italian MS Register starting injective or oral first line DMTs between 1 January 2010 and 31 December 2017 to evaluate their impact on disability outcomes in patients. Enrolled patients were divided into two groups: injectable group (IG) and oral group (OG).

Results

From a cohort of 11,416 patients, 4,602 were enrolled (3,919 on IG and 683 on OG). IG had higher rate of women (67.3% vs 63.4%, p<.05) and a lower mean age (36.1±10.9 vs 38.9±11.8, p<.001). For the event time to first relapse, Cox models after PS adjustment revealed a lower risk for OG patients (HR 0.58 CI95% 0.47-0.70, p<0.001). About the risk of CDP, no differences were found in the two groups (HR 1.14 CI95% 0.88-1.48, p=0.306). About the risk of DMT discontinuation, OG patients showed lower risk (HR 0.70 CI95% 0.57-0.86 p=0.001) than IG patients.

Conclusions

Real-world data from the Italian MS registry suggest that first line oral DMTs are associated to lower risks of experiencing a new relapse and of therapy discontinuation in comparison to injectable DMTs.

Background

No clear metrics for sensitive and reliable identification of the transition from relapsing-remitting multiple sclerosis (RRMS) to secondary progressive (SP)MS are available.

Objectives

To compare diagnostic performances of two different data-driven Secondary Progressive Multiple Sclerosis definitions.

Methods

patient with RRMS with a follow-up ≥5 years, with a current age ≥18 years, and with ≥3 EDSS scores recorded were selected from the Italian MS Registry. Annual incidence of SPMS conversion was reported as number of patients converting to SP every 100 patients/year. Three different SPMS definitions have been used. Data-driven definitions based on the Lorscheider’s algorithm (LA) and on the EXPAND trial inclusion criteria were validated, using the neurologist’s definition as gold standard, in terms of calibration, discrimination and goodness of fit by calculating: sensitivity, specificity, Positive Predictive Value (PPV), Negative Predictive Value (NPV), the Akaike information criterion (AIC), the Area Under the Curve (AUC). The overall calibration of the data-driven definitions was evaluated by the Calibration Slope test.

Results

a cohort of 10,240 RRMS patients was extracted from the Italian MS Registry. According to the neurologist judgment, 880 (8.59%) patients were classified as SPMS in the dataset. By applying the LA and the EXPAND definition, 1,806 (17.64%) and 1,134 (11.07%) patients, respectively, were classified as SPMS. The annual rate of SP conversion during the follow-up was 0.74 every 100 patients/year based on the neurologist’s definition, 1.57 every 100 patients/year using the LA and 0.94 every 100 patients/year applying the EXPAND definition. Both the data-driven definitions were well calibrated, with a p-value of the Calibration Slope test higher than 0.05 (LA=0.55; EXPAND definition=0.57). The AIC (LA=4301; EXPAND definition=5510) and the R-Square (LA=0.15 vs EXPAND definition=0.05), were in favor of the LA. The LA showed a greater discrimination power (AUC: 0.83 vs 0.65) and a higher sensitivity (77.1% vs 38.0%) in comparison to the EXPAND definition. Both definitions showed similar specificity (88.0% vs 91.5%). The PPV and the NPV were both higher using the LA than those obtained by the EXPAND definition (37.5% vs 29.5%; 97.6% vs 94.0%, respectively).

Conclusions

An accurate definition of SP transition is needed for a timely and efficacious treatment of SPMS patients. Real-world data from the Italian MS Registry suggests that data-driven definitions had a greater ability to capture SP transition than neurologist’s definition and that the global accuracy of LA seems to be higher than a definition based on the EXPAND trial inclusion criteria.

Background

The measure of retinal nerve fiber layer (RNFL) thickness by OCT is a marker of neurodegeneration. It is known that RNFL, especially in the temporal sector, is thinner in MS patients than in healthy controls and this process occurs over time. No study has explored the possible relation between RNFL thickness and the use of DMTs to date.

Objectives

To evaluate the variation of RNFL over a follow-up of 2 years and its relation with DMTs in a group of relapsing MS patients.

Methods

Patients with relapsing-remitting MS were included and underwent a spectral-domain OCT at baseline, after 6, 12 and 24 months. In patients taking DMTs, the baseline was the time of DMT initiation. Global (G), temporal (T), and papillo-macular bundle (PMB) sectors of RNFL have been measured. Age, gender, EDSS, age at onset, and DMTs taken during the study have been collected. DMTs were divided in first (interferon beta, glatiramer acetate, dimetilfumarate, teriflunomide) and second line (natalizumab, ocrelizumab, alemtuzumab, fingolimod). The variation of RNLF during the follow-up was studied by ANOVA. By linear regression we analysed the G sector variation using as variables: DMT taken for longer time during the study by each patient, demographic and clinical features.

Results

One-hundred-one patients were included (78.2%: females; mean age and mean age at onset: 41.3 years (SD:9.7) and 30.5 (SD:9.4), respectively). Seven patients did not take any DMT during the study, and one patients started interferon beta 17 month after the baseline. At baseline: 21 subjects started with a second line DMT; 72 started with a first line DMT, and 9 of them shifted to a second line after a mean time of 17.3 months (SD:7.1). An over-time reduction of all the RNFL sectors has been found both in right (G: p<0.001; T: p<0.001; PMB: p=0.041) and in left eye (G: p<0.001; T: p<0.001; PMB: p=0.002). No relation has been found between the G sector thinning and clinical and demographic features, but a trend versus less thinning in patients with second line DMT has been shown.

Conclusions

We confirmed an over-time thinning of RNFL in patients with MS, also in a short follow-up of 2 years. No clinical and demographic variables seem to influence this phenomenon. Otherwise, even if our result is only a trend, the DMTs with more impact on the inflammation appear to slow down the thinning. A wider cohort with more patients taking second line DMTs is needed to better clarify this point.

Background

Extending the natalizumab interval after the 24th administration could reduce the risk of progressive multifocal leukoencephalopathy (PML) without efficacy reduction.

Objectives

To evaluate the non-inferiority of the efficacy of an extended interval dosing (EID) regimen compared with the standard interval dosing (SID) of natalizumab regarding the multiple sclerosis (MS) MRI activity.

Methods

It is an observational, multicenter (14 Italian centers), retrospective cohort study, starting from the 24th natalizumab infusion to the loss of follow-up or 2 years after baseline. Patients were grouped in 2 categories according to the mean number of weeks between doses: < 5 weeks, SID; ≥ 5 weeks, EID. Three hundred and eight patients were enrolled. Median dose interval (MDI) following 24th infusion was 5 weeks, with a bimodal distribution (modes at 4 and 6 weeks).

Results

Two hundred and sixteen patients were in the SID group (MDI = 4.4 weeks) and 144 in the EID group (MDI 6 weeks). The risk to develop active lesions on MRI is similar in SID and EID groups during the 6 and 12 months after the 24th natalizumab infusion, respectively 2.98% (95% CI: 0.56-5.40) vs 3.32% (95% CI: 0.00-6.65%) [p=0.88] and 6.65% (95% CI: 3.02-10.29) vs 5.67% (95% CI: 1.76-9.58%) [p=0.73]. The EID regimen does not increase the occurrence of MRI activity after 6 and 12 months.

Conclusions

There is no evidence of a reduced efficacy of natalizumab in an EID setting regarding the MRI activity. This observation confirms previous clinical results and together with the increasing evidence of a reduced risk of PML associated to an EID regimen, supports the need of a bigger randomized study to assess the need to change the standard of the natalizumab dosing schedule, in order to better manage JCV-positive patients after 24 doses of natalizumab.

Background

Trials leading to Cladribine (CLD) approval for the treatment of Multiple Sclerosis (MS) were conducted over a decade ago: there is a need of proof of CLD efficacy and safety profile in the present MS therapeutic landscape.

Objectives

To evaluate CLD efficacy and safety profile in the current MS population, and to identify early predictors of response.

Methods

Before the drug was marketed under the national healthcare system, in Italy CLD was available through a Free Of Charge (FOC) program. We asked all participating MS centres to contribute to the present study, collecting demographic, clinical and MRI data of the patients who received CLD in the FOC program.

Results

56 MS centres participated to the study, for a total of 236 patients (71% F) (mean age: 39 + 11,5 years; mean disease duration: 10 + 8,5 years). Mean Annualized Relapse Rate (ARR) in the two years before CLD was 0,7 + 0,6; median baseline EDSS was 3 (quartiles 1,5-3,5; range 0-6,5). 53 patients (22,5%) were treatment naïve, 107 (45,3%) switched to CLD from first-line DMDs (for inefficacy), 76 (32,2%) switched to CLD from a second line therapy (33/76 for safety or loss of tolerability, 43/76 for inefficacy). Mean follow up was 12,2 + 5 months. 84,7% of the patients were relapse-free at follow-up. Mean ARR at follow-up was 0,2 + 0,6. Patients taking CLD as first therapy were less likely to experience a relapse (HR 0,6; 95% CI: 0,2-0,8; p = 0,04) while a higher baseline ARR was a predictor of clinical activity (HR 2,7, 95% CI: 1,4-5,6; p = 0,004). Median EDSS at follow up was 2 (quartiles 1-3,5). EDSS was stable in 73.7%, improved of at least 1 point in 21,6% and worsened of at least 1 point in 4,7% of the patients. 157/236 patients completed one year of follow up. Of these 92 (59,7%) reached No Evidence of Disease Activity (NEDA-3); NEDA-3 was achieved more frequently by naive patients (70%) than switchers from a first (57%) or a second line (50%) (HR 2,3; 95% CI: 1,01-5,3; p = 0,04). 33/236 patients reported at least one adverse event (AE), most frequently infections (15 cases); other AEs included gastrointestinal side effects, cutaneous rash, aphthous stomatitis and headache. Two severe AEs were reported (one pneumonia, one melanoma).

Conclusions

Even with the limitations of a retrospective study, our data confirm CLD safety and efficacy profile. Consistently with previous studies on patients with a first demyelinating event, CLD efficacy is maximized when used early in the course of MS.

Background

Corticosteroids in high dose (HDC) is the recommended treatment for multiple sclerosis (MS) relapses. Most common first line treatment consists of three to five days courses of 1 g of intravenous methylprednisolone. The choice of HDC duration varies due to different clinical considerations.

Objectives

Our aim was to determine which demographic factors, comorbidities and MS clinical considerations led to the choice of a longer or shorter HDC course duration, also exploring the possible effect on clinical benefit reported by treated patients after one month.

Methods

MS subjects with a clinical relapse of MS or with MRI activity who underwent a treatment with HDC were enrolled. Demographics (sex and age), clinical features (type of relapse and EDSS) and medical history (occurrence of metabolic, immune and psychiatric comorbidities) were collected prior to HDC. After a month, subjective clinical benefit was also evaluated. Regression models were used to evaluate the relationships of HDC duration and clinical benefits after 1 month with demographic and medical variables.

Results

101 MS patients were enrolled (mean age 44 years, male 24.8%, mean EDSS 3.1). Most of them (92.1%) had a clinical relapse (31.1% with multisystem involvement), 7.9% only had brain MRI activity. 66.3% were on DMDs. 36.6% had comorbidities (autoimmune comorbidities 16.8%) and 45.8% had mood disorder. Linear regression showed that older age (p 0.039) and psychiatric comorbidities (p 0.019) correlate with the choice of shorter HDC treatment (3 days). Conversely, multisystem deficit relapses correlate with the choice of longer treatment (5 days) (p 0.001). Subjective clinical benefit after one month was only associated with EDSS score pre HCD treatment (p 0.004), while no association was reported with number of days of treatment.

Conclusions

Data suggests that some clinical factors, such as severity of relapse, age and comorbidities can affect the choice of HDC course duration. Shorter HDC treatments in selected patients appear to be an appropriate treatment option that does not affect the reported clinical benefit.

Background

Lumbar puncture (LP) is a frequently used procedure in Multiple Sclerosis (MS) diagnosis. Atraumatic needles have been proposed to reduce complication rates after lumbar puncture (LP), despite this, many clinicians prefer to continue using standard needles.

Objectives

The study aimed to evaluate the frequency of post procedural headache, low back pain and other complications in a cohort of multiple sclerosis (MS) patients underwent LP by using atraumatic or standard needle.

Methods

The study included patients underwent the procedure of LP. Demographic (gender, age, BMI) and clinical features (disease duration) were collected for each patient. In addition, information on chronic headache and its treatment were also recorded. For each patient, it was indicated whether the LP was performed with the use of standard or atraumatic needle. Then, the occurrence of post-procedural complications (headache, low back pain and nausea) and the possible relationships with the type of needle used was investigated.

Results

The study included 100 patients (28% male; mean age 42.3±11.9 years). 21% of these had a history of chronic headache with use of medications for 5%. Regression analysis showed that lower body mass index (p 0.032) and younger age (p 0.002) were associated with the use of atraumatic needles, while no association was reported with gender. A lower frequency of post-procedural headache (31% vs 50.7%) and low back pain (34.5% vs 40.8%) were reported respectively by using atraumatic vs standard needles (p<0.05). Multivariate analyses showed that post-procedural headache, with a tendency toward statistical significance (p=0.058), but not low back pain and nausea were associated to the use of standard needles after controlling for other demographic variables. Finally, an association between lower back pain and female gender (p=0.018), and between nausea and lower BMI (p=0.032) were also reported.

Conclusions

Our data seem to suggest the usefulness of the atraumatic needle for PL to prevent post procedural headache. Further investigations into larger cohorts are needed.