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Clinical Trial Summary

This study intends to compare the efficacy of of virtual reality therapy(VRT) with modified constraint induced movement therapy(mCIMT) versus modified constraint induced movement therapy alone for children with hemiparetic cerebral palsy aged >/= 5-18 years, in improving the upper limb functions, as measured by the QUEST (Quality of Upper Extremity Skill Test score) over 3 months of intervention.


Clinical Trial Description

Sample size: Based on the previous studies, on CIMT in hemiparetic CP children using QUEST scores,

- Anticipated increase in total QUEST scores at 2 months in the mCIMT group:

10 + 5(mean + SD)

- Anticipated increase in total QUEST scores at 2 months in the mCIMT+ VRT group:

15 + 5(mean + SD)

- Alpha error= 5%

- Power= 80%

- Calculated sample size : 23 children in each group

- Considering loss due to attrition of roughly 25%,investigators would enroll 30 children in each of the two groups.

- At least 10 children in each group will be analyzed with baseline and follow up fMRI and DTI. These children in each group will be selected through systematic sampling method.

Method:

- Block randomization in 1:1 ratio with variable block size will be done using computer generated random numbers. These will be generated by the person not involved in the trial. Subjects will be randomized to

- mCIMT + VRT

- mCIMT alone

- Each random number will be kept in an opaque sealed envelope and will be opened only at the time of enrollment of the study subjects.Principal investigator will then enroll the participants, and will assign the participants to interventions. After obtaining informed consent from parents, and assent from the children participating in the trial(whenever possible), of hemiparetic cerebral palsy, subjects will be enrolled in the study as per the inclusion and exclusion criteria. Details for each patient will be recorded in a structured proforma

The total study duration will be 3 months, of which 2 months of supervised intervention will be given.Home based therapy will be continued all through the 3 months of intervention in both the groups.

- Functional assessment of the upper limbs will be done using QUEST/Nine Hole Peg Board Test/ Hand Held Dynamometer and quality of life by cerebral palsy quality of life(CP-QOL)- child scale. Baseline fMRI(Functional Magnetic Resonance Imaging) and DTI(Diffusion Tensor Imaging) Brain will be performed up to one week before starting intervention.

- Baseline fMRI and DTI will be done in at least 10 children of each group, selected by systematic sampling method within each group.

- mCIMT+ VRT program will be initiated within one week of baseline assessment, at the institute(Department of PMR). There will be 12 visits over the duration of intervention for supervised sessions, in each group. It would be twice weekly for 4 weeks followed by once a week for next 4 weeks. Parents will be advised regarding the therapy to be provided at home on these visits. Compliance log will be provided to them at the first visit

- Compliance log will be checked on each subsequent visit; reinforcement will be provided; video records of one session per week of each item of mCIMT done at home will also be reviewed. Those following regimen for <70 % of the total time recommended for mCIMT each day for at least 21 out of 28 days will be considered to be poorly compliant. Those following regimen for >80% of the total time recommended for mCIMT each day for at least 21 out of 28 days will be considered to have compliance. Those following the regimen for 80-90% of the total time recommended for mCIMT each day for at least 21 out of 28 days will be considered to have fair compliance.Those following the regimen for >90% of the total time recommended for mCIMT each day for at least 21 out of 28 days will be considered to have good compliance.[All children(both with good and poor compliance), will be included in the intention to treat analysis]

CIMT(Control group and intervention group) :

• Sling will be applied to the unaffected arm, as a restraint (sling will be provided free of cost). mCIMT will be performed for 2 hours per session during the scheduled visits(in the control group) and 2 hours every day at home(by both the groups). Functional activities will be carried out by the affected, unrestrained arm under supervision. Repetitive activities and shaping will be practiced. mCIMT will be provided by trained occupational therapist, first investigator and with the caregiver's participation and would be tailor made to each patient. At each visit, the methodology followed at home will be reviewed (log books with/without video records). Reinforcement will be provided at each visit regarding subsequent therapy to be done at home.

VRT(Intervention group only):

- VRT software and device is developed in collaboration with IIT Delhi using Kinect system. Kinect- motion sensor and computer set up is required. VRT (CIMT in a virtual environment)will be provided for 2 hours at every visit(twice weekly for first 4 weeks, once a week for next 4 weeks). VRT will be provided only during scheduled visits with the same principle as mCIMT. Functional activities like repetition of the tasks and shaping will be performed with the affected hand using VRT and CIMT while the unaffected arm is restrained. At home, 2 hours of modified CIMT will be given daily, as for the control group. At each visit, the methodology of CIMT followed at home is reviewed (log books with/without video records). Reinforcement will be provided at each visit regarding subsequent therapy to be done at home

- FMRI and DTI will be done within 1 week of completion of 08 weeks of intervention in all those children who have had a baseline fMRI/DTI.

- After 8 weeks of intervention, children will be followed up again at the end of 12 weeks from the baseline. They will be asked to continue mCIMT daily for 2 hours at home and maintain the daily logs during this period. At this visit, all clinical assessments will be repeated

- Outcome assessors will be blinded to the study subject's group allocation.

- Data will be recorded in a pre-designed proforma and managed in an excel spread sheet.All the entries will be checked for any possible key board errors. Statistical analysis will be done using Stata 14.0 statistical software.

- Intention to treat analysis and per protocol analysis will be done

- Categorical variables will be summarized by frequency (%) and test of proportions will be used to compare the proportions between the two groups. Quantitative variables will be assessed for approximate normal distribution and these will be denoted as mean+SD or median (Interquartile range/min-max), as appropriate.Student's t test/ Wilcoxon rank sum test will be used to compare the mean value between the two groups at the end of the intervention and at the end of 3 months. In case of any imbalance at the baseline, analysis of covariance(ANCOVA) will be used to compute adjusted mean of the outcome variables bet the two groups and the corresponding effect size(95%CI).In this study p value <0.05 will be considered statistically significant. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT03237520
Study type Interventional
Source All India Institute of Medical Sciences, New Delhi
Contact Sheffali Gulati, MD
Phone +91-11-26594679
Email sheffaligulati@gmail.com ; sheffalig@yahoo.com
Status Not yet recruiting
Phase N/A
Start date September 2017
Completion date August 2018

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