scholarly journals Methods to Optimize Recruitment, Participation, and Retention Among Vulnerable Individuals Participating in a Longitudinal Clinical Trial

2021 ◽  
Vol 35 (1) ◽  
pp. 24-49
Author(s):  
Kelly Doran ◽  
Anahi Collado ◽  
Hailey Taylor ◽  
Julia W. Felton ◽  
Kayla N. Tormohlen ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Low Income ◽  
Controlled Trial ◽  
Community Outreach ◽  
Lessons Learned ◽  
Retention Rates ◽  
Post Intervention ◽  
Evidenced Based ◽  
Medical Advances

Low-income and ethnic/racial minority adults do not often participate in research or may face unique barriers when participating in research, which delays and impedes medical advances for this vulnerable population. This article describes in detail the evidenced-based methods used to enhance recruitment, participation, and retention in a clinical trial at a center serving ethnic/racial minorities and low-income individuals. The article details the partnership with a community outreach center and describes the duties and impact of a community liaison to enhance recruitment, participation, and retention in a randomized controlled trial with a 6-month follow-up. Of the 246 individuals initially recruited for screening, 80 did not meet inclusion criteria with the most common reason for disqualification being meeting criteria for substance use disorder (n = 44). One hundred sixty-six participants qualified for participation. The majority of participants identified as African American (n = 127, 77.1%) and reported an annual individual income under $10,000 (n = 121 (74.2%). Forty-five percent of the sample completed the requested number of sessions (i.e., 12). Sixty-three percent of participants completed post intervention assessments and 42% completed 6-month follow-up data collection. The participation and retention numbers in this study appear higher than typical participation and retention rates in longitudinal studies with similar populations. The methods and lessons learned may be useful for other clinical trials that recruit vulnerable populations and wish to enhance participation, engagement, and retention.

scholarly journals Repeated sessions of bilateral transcranial direct current stimulation on intractable tinnitus: a study protocol for a double-blind randomized controlled trial

F1000Research ◽  
2018 ◽  
Vol 7 ◽  
pp. 317 ◽  
Author(s):  
Arash Bayat ◽  
Miguel Mayo ◽  
Samaneh Rashidi ◽  
Nader Saki ◽  
Ali Yadollahpour
Keyword(s):  
Clinical Trial ◽  
Treatment Response ◽  
Direct Current ◽  
Transcranial Direct Current Stimulation ◽  
Controlled Trial ◽  
Chronic Tinnitus ◽  
Post Intervention ◽  
Double Blind ◽  
Direct Current Stimulation

Background: Transcranial Direct Current Stimulation (tDCS) is reportedly a potential treatment option for chronic tinnitus. The main drawbacks of previous studies are short term follow up and focusing on the efficacy of single session tDCS. This study aims to investigate the therapeutic efficacy, adverse effects (AEs) and tolerability of repeated sessions of bilateral tDCS over auditory cortex (AC) on tinnitus symptoms Methods: This will be a double-blinded randomized placebo controlled parallel trial on patients (n=90) with intractable chronic tinnitus (> 2 years) randomly divided into three groups of anodal, cathodal, and sham tDCS. In the sham treatment, after 30 sec the device will be turned OFF without informing the patients. The tDCS protocol consists of 10 sessions (daily  20 min session; 2 mA current for 5 consecutive days per week and 2 consecutive weeks) applied through 35 cm2 electrodes. The primary outcome is tinnitus handicap inventory (THI) which will be assessed pre- and post-intervention and at one month follow-up. The secondary outcomes are tinnitus loudness and distress to be assessed using a visual analogue scale (VAS) pre-intervention, and immediately, one hour, one week, and one month after last stimulation. The AEs and tolerability of patients will be evaluated after each session using a customized questionnaire. Possible interactions between the disease features and treatment response will be evaluated.   Discussion: To our knowledge this is the first study to investigate the effects of repeated sessions of tDCS on chronic tinnitus symptoms with one month follow-up. In addition, the AEs, and tolerability of patients will be studied. In addition, the possible interactions between the disease specific features including the hearing loss, laterality, type of tinnitus, and treatment response will be evaluated.   Trial registration: The study has been registered as a clinical trial in Iranian Registry of Clinical Trial (IRCT2016110124635N6) on the 01/06/2017.

scholarly journals Efficacy of two-week therapy with doxycycline-based quadruple regimen versus levofloxacin concomitant regimen for helicobacter pylori infection: a prospective single-center randomized controlled trial

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Marouf Alhalabi ◽  
Mohammed Waleed Alassi ◽  
Kamal Alaa Eddin ◽  
Khaled Cheha
Keyword(s):  
Clinical Trial ◽  
Helicobacter Pylori ◽  
Confidence Interval ◽  
Odds Ratio ◽  
Controlled Trial ◽  
Helicobacter Pylori Infection ◽  
First Line ◽  
Link Type ◽  
Syrian Population

Abstract Background Antibiotic-resistance reduces the efficacy of conventional triple therapy for Helicobacter Pylori infections worldwide, which necessitates using various treatment protocols. We used two protocols, doxycycline-based quadruple regimen and concomitant levofloxacin regimen. The aim was to assess the effectiveness of doxycycline-based quadruple regimen for treating Helicobacter Pylori infections compared with levofloxacin concomitant regimen as empirical first-line therapy based on intention-to-treat (ITT) and per-protocol analyses (PPA) in Syrian population. Settings and design An open-label, randomised, parallel, superiority clinical trial. Methods We randomly assigned 78 naïve patients who tested positive for Helicobacter Pylori gastric infection, with a 1:1 ratio to (D-group) which received (bismuth subsalicylate 524 mg four times daily, doxycycline 100 mg, tinidazole 500 mg, and esomeprazole 20 mg, each twice per day for 2 weeks), or (L-group) which received (levofloxacin 500 mg daily, tinidazole 500 mg, amoxicillin 1000 mg, and esomeprazole 20 mg each twice per day for two weeks). We confirmed Helicobacter Pylori eradication by stool antigen test 8 weeks after completing the treatment. Results Thirty-nine patients were allocated in each group. In the D-group, 38 patients completed the follow-up, 30 patients were cured. While in the L-group, 39 completed the follow-up, 32patients were cured. According to ITT, the eradication rates were 76.92%, and 82.05%, for the D-group and L-group respectively. Odds ratio with 95% confidence interval was 1.371 [0.454–4.146]. According to PPA, the eradication rates were 78.9%, and 82.05% for the D-group and L-group respectively. The odds ratio with 95% confidence interval was 1.219 [0.394–3.774]. We didn’t report serious adverse effects. Conclusions Levofloxacin concomitant therapy wasn’t superior to doxycycline based quadruple therapy. Further researches are required to identify the optimal first-line treatment for Helicobacter-Pylori Infection in the Syrian population. Trial registration We registered this study as a standard randomized clinical trial (Clinicaltrial.gov, identifier-NCT04348786, date:29-January-2020).

scholarly journals A Short Mindfulness Retreat for Students to Reduce Stress and Promote Self-Compassion: Pilot Randomised Controlled Trial Exploring Both an Indoor and a Natural Outdoor Retreat Setting

Healthcare ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 910
Author(s):  
Dorthe Djernis ◽  
Mia S. O’Toole ◽  
Lone O. Fjorback ◽  
Helle Svenningsen ◽  
Mimi Y. Mehlsen ◽  
...  
Keyword(s):  
Randomised Controlled Trial ◽  
Controlled Trial ◽  
Effect Sizes ◽  
Medium Effect ◽  
Control Group ◽  
Post Intervention ◽  
Pilot Randomised Controlled Trial ◽  
Self Compassion ◽  
Randomised Controlled

Here, we developed and examined a new way of disseminating mindfulness in nature to people without meditation experience, based on the finding that mindfulness conducted in natural settings may have added benefits. We evaluated a 5-day residential programme aiming to reduce stress and improve mental health outcomes. We compared an indoor and an outdoor version of the programme to a control group in a pilot randomised controlled trial (RCT). Sixty Danish university students experiencing moderate to high levels of stress were randomised into a residential mindfulness programme indoors (n = 20), in nature (n = 22), or a control group (n = 18). Participants completed the Perceived Stress Scale and the Self-Compassion Scale (primary outcomes) along with additional secondary outcome measures at the start and end of the program and 3 months after. Stress was decreased with small to medium effect sizes post-intervention, although not statistically significant. Self-compassion increased post-intervention, but effect sizes were small and not significant. At follow-up, changes in stress were not significant, however self-compassion increased for both interventions with medium-sized effects. For the intervention groups, medium- to large-sized positive effects on trait mindfulness after a behavioural task were found post-intervention, and small- to medium-sized effects in self-reported mindfulness were seen at follow-up. Connectedness to Nature was the only outcome measure with an incremental effect in nature, exceeding the control with a medium-sized effect at follow-up. All participants in the nature arm completed the intervention, and so did 97% of the participants in all three arms. Overall, the results encourage the conduct of a larger-scale RCT, but only after adjusting some elements of the programme to better fit and take advantage of the potential benefits of the natural environment.

scholarly journals Meeting the Challenges of Longitudinal Cluster-Based Trials in Schools: Lessons From the Chicago Trial of Positive Action

2016 ◽  
Vol 40 (4) ◽  
pp. 450-482 ◽  
Author(s):  
Kendra M. Lewis ◽  
David L. DuBois ◽  
Peter Ji ◽  
Joseph Day ◽  
Naida Silverthorn ◽  
...  
Keyword(s):  
Public Schools ◽  
Low Income ◽  
Urban Areas ◽  
Statistical Power ◽  
Student Mobility ◽  
Controlled Trial ◽  
Lessons Learned ◽  
Study Planning ◽  
Positive Action ◽  
Cluster Randomized

We describe challenges in the 6-year longitudinal cluster randomized controlled trial (CRCT) of Positive Action (PA), a social–emotional and character development (SECD) program, conducted in 14 low-income, urban Chicago Public Schools. Challenges pertained to logistics of study planning (school recruitment, retention of schools during the trial, consent rates, assessment of student outcomes, and confidentiality), study design (randomization of a small number of schools), fidelity (implementation of PA and control condition activities), and evaluation (restricted range of outcomes, measurement invariance, statistical power, student mobility, and moderators of program effects). Strategies used to address the challenges within each of these areas are discussed. Incorporation of lessons learned from this study may help to improve future evaluations of longitudinal CRCTs, especially those that involve evaluation of school-based interventions for minority populations and urban areas.

Intelligence at Six Years in Relation to Neonatal Bilirubin Level: Follow-up of The National Institute of Child Health and Human Development Clinical Trial of Phototherapy

PEDIATRICS ◽  
1991 ◽  
Vol 87 (6) ◽  
pp. 797-805
Author(s):  
Peter C. Scheidt ◽  
Barry I. Graubard ◽  
Howard J. Hoffman ◽  
Dolores A. Bryla ◽  
Karin B. Nelson ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Birth Weight ◽  
Child Health ◽  
Human Development ◽  
Bilirubin Level ◽  
Controlled Trial ◽  
Full Scale ◽  
The Central Nervous System ◽  
Bilirubin Toxicity

Results of the National Institute of Child Health and Human Development Randomized Controlled Trial of Phototherapy were examined for the relationship of neonatal bilirubin level to neurological and developmental outcome at 6-year follow-up. This analysis focused on 224 control children with birth weight of less than 2000 g. Bilirubin levels were maintained below previously specified levels by the use of exchange transfusion only (24%). Rates of cerebral palsy were not significantly higher for children with elevated maximum bilirubin level than for those whose level remained low. No association was evident between maximum bilirubin level and IQ (Full Scale, Verbal, or Performance) by simple correlation analysis (r = -.087, P = .2 for Full Scale) or by multiple linear regression adjusting for factors that covary with IQ (β = -.15, P = .58). IQ was not associated with mean bilirubin level, time and duration of exposure to bilirubin, or measures of bilirubin-albumin binding. Thus, over the range of bilirubin levels permitted in this clinical trial, there was no evidence of bilirubin toxicity to the central nervous system. Measures used to control the level of bilirubin in low birth weight neonates appear to prevent effectively the risk of bilirubin-induced neurotoxicity.

scholarly journals Clinical Outcomes of Computational Virtual Mapping-Guided Catheter Ablation in Patients With Persistent Atrial Fibrillation: A Multicenter Prospective Randomized Clinical Trial

2021 ◽  
Vol 8 ◽  
Author(s):  
Yong-Soo Baek ◽  
Oh-Seok Kwon ◽  
Byounghyun Lim ◽  
Song-Yi Yang ◽  
Je-Wook Park ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Clinical Trial ◽  
Catheter Ablation ◽  
Computational Modeling ◽  
Controlled Trial ◽  
Dominant Frequency ◽  
Complication Rates ◽  
Clinical Recurrence ◽  
Significant Difference

Background: Clinical recurrence after atrial fibrillation catheter ablation (AFCA) still remains high in patients with persistent AF (PeAF). We investigated whether an extra-pulmonary vein (PV) ablation targeting the dominant frequency (DF) extracted from electroanatomical map–integrated AF computational modeling improves the AFCA rhythm outcome in patients with PeAF.Methods: In this open-label, randomized, multi-center, controlled trial, 170 patients with PeAF were randomized at a 1:1 ratio to the computational modeling-guided virtual DF (V-DF) ablation and empirical PV isolation (E-PVI) groups. We generated a virtual dominant frequency (DF) map based on the atrial substrate map obtained during the clinical AF ablation procedure using computational modeling. This simulation was possible within the time of the PVI procedure. V-DF group underwent extra-PV V-DF ablation in addition to PVI, but DF information was not notified to the operators from the core lab in the E-PVI group.Results: After a mean follow-up period of 16.3 ± 5.3 months, the clinical recurrence rate was significantly lower in the V-DF than with E-PVI group (P = 0.018, log-rank). Recurrences appearing as atrial tachycardias (P = 0.145) and the cardioversion rates (P = 0.362) did not significantly differ between the groups. At the final follow-up, sinus rhythm was maintained without any AADs in 74.7% in the V-DF group and 48.2% in the E-PVI group (P < 0.001). No significant difference was found in the major complication rates (P = 0.489) or total procedure time (P = 0.513) between the groups. The V-DF ablation was independently associated with a reduced AF recurrence after AFCA [hazard ratio: 0.51 (95% confidence interval: 0.30–0.88); P = 0.016].Conclusions: The computational modeling-guided V-DF ablation improved the rhythm outcome of AFCA in patients with PeAF.Clinical Trial Registration: Clinical Research Information Service, CRIS identifier: KCT0003613.

scholarly journals A randomised controlled trial to investigate the effectiveness of sustained photoprotective behaviour in xeroderma pigmentosum after intervention

BJPsych Open ◽  
2021 ◽  
Vol 7 (S1) ◽  
pp. S287-S287
Author(s):  
Tamara Searle ◽  
Jessica Walburn ◽  
Sam Norton
Keyword(s):  
Randomised Controlled Trial ◽  
Self Efficacy ◽  
Xeroderma Pigmentosum ◽  
Controlled Trial ◽  
Premalignant Lesions ◽  
Mental Wellbeing ◽  
Group Effect ◽  
Post Intervention ◽  
Randomised Controlled

AimsThis study aimed to investigate whether an intervention designed to improve photoprotective behaviours is effective at changing behaviour and whether any change could be maintained.BackgroundXeroderma Pigmentosum (XP) is a rare condition in which patients are at risk of malignancies when exposed to ultra-violet radiation (UVR). Sufferers must take extra precautions to protect themselves from UVR. They must apply sunscreen to exposed skin, wear thick clothing, gloves, and a UVR-protective visor. Treatments include preventative photoprotective measures; the use of sunscreen and protective clothing. Additionally, frequent eye and skin examinations are required and swift removal of any premalignant lesions.MethodIn this randomised controlled trial, 16 participants with XP were given questionnaires at 4 time points; baseline, post-intervention, 5 months and 9 months post-intervention. The intervention involved 7 one-on-one counselling sessions, as well as telephone consultations. Counselling sessions encouraged photoprotection adherence, self-efficacy and discussions of any barriers to improving photoprotective behaviour. This study focused on psychosocial variables, attitudes and photoprotection. Questionnaires included the photoprotection self-efficacy questionnaire, Self-Reported Behavioural Automaticity Index, Short Warwick-Edinburgh Mental Wellbeing Scale, Quality of Life and Brief Photoprotection Adherence Questionnaire.ResultThe intervention was shown to have no significant effect on participants’ questionnaires scores. Univariate ANCOVA revealed a group effect between follow-up 1 (FU1) and follow-up 2 (FU2); η2 = 0.422 for self-efficacy in wearing photoprotective clothing. A group effect was identified from BL to FU1 and FU1 to FU2; η2 = 0.343 and η2 = 0.378 respectively in how often participants reapplied sunscreen to their face when outside for longer periods. Univariate ANCOVA revealed no group or time effect for the other outcome variables; for example, sunscreen self-efficacy.ConclusionThe intervention had no significant effect on photoprotective behaviour questionnaire scores. Future research could focus on recruiting more participants globally to generate more statistically powered results. Research should focus on producing a maintainable intervention so that any positive change would produce better long-term health outcomes. This study lays the foundations for future XP research, which will be vital to improve understanding and enhance photo protective behaviour.

scholarly journals Guided meditation for vision acuity training on adolescent myopia: study protocol for an open-label, prospective, multicenter, randomized controlled trial

Trials ◽  
2022 ◽  
Vol 23 (1) ◽  
Author(s):  
Yibo Li ◽  
Lili Zhu ◽  
Raoying Wang ◽  
Xingyue Yang ◽  
Xinqi Jiang ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Visual Acuity ◽  
Controlled Trial ◽  
Control Group ◽  
Health Maintenance ◽  
Ocular Symptoms ◽  
Thought Disorders ◽  
Multicenter Randomized Controlled Trial ◽  
Distant Visual Acuity

Abstract Background Currently, the population with myopia climbs steadily, and is developing toward younger age, posing a great concern to the health of adolescents. Myopia in severe cases can cause irreversible consequences such as glaucoma, blindness, and other complications. At present, the solutions for myopia are glasses, medication, and surgery. This study aims to investigate the role of a physiotherapy category based on guided meditation for vision acuity training on adolescent myopia. Methods This is a prospective, randomized, multicenter clinical trial. One thousand one hundred forty primary and secondary school students aged 8–18 years old from 27 schools will be recruited and randomly divided into an experimental and a control group at a ratio of 2:1 in two phases, with a training period of 30 days in each phase and a follow-up period of 3 months. No interventions will be conducted during the follow-up period, nor will other interventions employed. Inclusion criteria will meet the diagnostic criteria for simple myopia and −6.00D ≤ spherical lenses ≤ −0.50D and cylindrical lenses ≤1.50D. The primary observation index will be to compare the statistical differences in distant visual acuity between the two groups; the secondary observation indexes will be ocular symptoms (mainly including eye fatigue, dryness, pain, double vision, neck pain, thought disorders, and lags in response), diopter, and astigmatism. Discussion The purpose of this two-phase trial is to compare the clinical effectiveness of focused vision-guided meditation with Chinese eye exercises that are also non-pharmacological, non-invasive interventions for myopia, and to maximize the benefit to the subjects. The results will indicate whether the training based on focused vision-guided meditation has the ability to improve distant visual acuity, relieve ocular symptoms, and ameliorate diopter. In addition, this trial will provide clinical efficacy of the training, which is expected to provide meaningful data for vision rehabilitation. At the same time, the vision acuity training method, which is permeated with the concept of Traditional Chinese Medicine (TCM) rehabilitation and health maintenance, will be applied to achieve the goal of preventing or alleviating myopic development and reducing myopia rate. Trial registration Chinese Clinical Trial Registry ChiCTR2000038642. Registered on 26 September 2020

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