Clinical trials

18

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Condition / disease
Location
Status: Not yet recruiting

Prehabilitation Before Major Surgery

The goal of this clinical trial is to learn if a virtually monitored, home-based prehabilitation program is feasible and acceptable for adults undergoing major elective surgery. The main questions it aims to answer are: 1. Can researchers successfully recruit and retain participants across multiple sites? 2. Will participants adhere to the prehabilitation program at a high enough rate to justify a larger trial? Researchers will compare the prehabilitation program to standard preoperative care to see if the intervention is feasible to implement and whether it may help reduce postoperative complications. Participants will: * Be randomly assigned to receive either the prehabilitation program or usual care * Complete questionnaires and physical assessments before and after the intervention * (For those in the intervention group) Receive exercise, nutrition, and mindfulness guidance, protein supplements, and use the CloudDX virtual care platform to support their activities

Participants needed: 120
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: Queen's UniversityUpdated: May 15, 2026Locations: 3
Eligibility criteria

≥ 18 years of age [+2]

Emergency Surgery [+5]

Status: Not yet recruiting

Developing a Colonoscopy Preparation Protocol for Patients With Diabetes

Patients with diabetes have less effective colonoscopy preparation when compared to nondiabetic patients. This leads to the possibility of missed polyps, longer procedural time and patient dissatisfaction. Furthermore, the peri-colonoscopy period has been associated with increased risk of hypoglycemic events given the required change in diet and possible changes in antihyperglycemic medication regime, though this area is not well studied. Studies have found that same day preparation for colonoscopy allowed for comparable bowel visualization to split dosing. Pairing this with a low fiber diet permitted the day prior to colonoscopy, the extent of changes to routine and diet within a patient with diabetes day for colonoscopy preparation is minimized and could reduce risk of side effects and hypoglycemia, while also ensuring adequate bowel preparation. This study tests the hypothesis that creating a diabetic specific protocol (permitting a low fibre diet the day prior to colonoscopy and using same day preparation) will result in fewer hypoglycemic events and more adequate quality preparation in comparison to a conventional 2L PEG split day preparation with dietary restrictions in patients with diabetes.

Participants needed: 40
Trial details
Age: 18-75Biological sex: AllType: InterventionalSponsor: Queen's UniversityUpdated: Apr 24, 2026Locations: 1
Eligibility criteria

Patients Age over the age of 18 [+2]

Patients without diabetes [+11]

Status: Not yet recruiting

Caffeine for Infants Born at 28 to 34 Weeks Receiving Respiratory Support

The goal of this pilot clinical trial is to test if it is possible to conduct a larger study on the use of caffeine in preterm infants who need help with their breathing. It will also look at whether caffeine helps these infants get healthy enough to leave the hospital sooner. The main questions the researchers aim to answer are: Can the investigators successfully recruit and keep enough participants in the study? Do the medical teams follow the study drug instructions correctly? Does caffeine reduce the total time infants spend in the Neonatal Intensive Care Unit (NICU)? Researchers will compare caffeine to a placebo (a look-alike substance with no active medicine) to see if caffeine is a helpful treatment for babies born between 28 and 34 weeks of gestation who are using a breathing machine or oxygen. Participants will: Be randomly assigned to receive either caffeine or a placebo through an IV or a feeding tube. Receive the study treatment once a day as long as they require respiratory support (and for 24 hours after they stop). Be monitored by the research team for clinical outcomes like feeding progress, breathing stability, and growth until they are discharged from the hospital.

Participants needed: 62
Trial details
Phase: Phase 2Age: 0-28Biological sex: AllType: InterventionalSponsor: Queen's UniversityUpdated: Mar 10, 2026Locations: 1
Eligibility criteria

Infant born at a gestational age between 28+0 and 34+6 weeks. [+3]

Presence of dysmorphic features or major congenital malformations that adversely... [+3]

Status: Recruiting

Does a Virtual Program for Pelvic Pain Improve Pain and Sexual Outcomes in Individuals With Provoked Vestibulodynia?

The goal of this clinical trial is to learn if a 3-month online pelvic health program works to improve pain and sexual wellbeing in adult women with chronic genital pain. The main research questions it aims to answer are: * How well does the program work to improve pain and sexual wellbeing? * How well does the program work to improve pain anxiety and pain interference? * How do participants rate their improvement after completing the program? * How satisfied are participants with the program? Researchers will compare participants who receive the program right away to those who wait for the program. Participants who receive the program right away will * Progress through the program at their own pace * Learn about pain science, do pelvic health exercises, and use information to be more mindful and less anxious about the pain * Answer questions about their pain experiences and sexual wellbeing before and after the 3-month program, as well as 3 months after the end of the program * Provide information about their experiences with the program and progress through the program during and after the program

Participants needed: 250
Trial details
Age: 18+Biological sex: FemaleType: InterventionalSponsor: Queen's UniversityUpdated: Feb 12, 2026Locations: 1
Eligibility criteria

Self-reported physician diagnosis of provoked vestibulodynia (PVD) [+4]

Less than 18 years old [+4]

Status: Recruiting

Connecting Families

Living in poverty has a profound negative impact on parenting stress and children's health. When poverty occurs early in childhood and continues for a long time, the impact on child health can be lifelong. Child poverty is common, affecting about 20% of Canadian children. Many low income families may not be receiving all the social benefits for which they are eligible. There are calls for primary care providers to ask patients if they have difficulty making ends meet at the end of the month and to intervene if poverty is identified, but it is not known if intervening can improve parent's and children's health. This study will test whether a Community Support Worker who helps families with young children navigate the social service system by reviewing social needs (like food, housing or energy insecurity) and income supports can lead to increased family income, reduced parenting stress and an improvement in their child's health. The Community Support Worker will help families complete income tax, apply for benefits and community supports for which they are eligible. The investigators will also study the effect of this intervention on health care utilization. Our study will be conducted in Toronto and Kingston in primary care practices participating in the TARGet Kids! primary care research network. Results from this study will help health care providers and policy makers understand whether Community Support Workers are an effective way to integrate the health and social service systems to improve parent and child health.

Participants needed: 80
Trial details
Age: 1-3Biological sex: AllType: InterventionalSponsor: Queen's UniversityUpdated: Jan 13, 2026Locations: 1
Eligibility criteria

Parents of children (younger than 3 years) attending a regularly scheduled prima... [+2]

Parents without legal status in Canada, as they are not eligible for many Canadi... [+3]

Status: Recruiting

Human Skeletal Muscle Response to 5 Days of Bedrest in Young Adults

The goal of this intervention trial is to characterize skeletal muscle atrophy in healthy, young adults during short term bedrest. The main questions it aims to answer are: How much do skeletal muscle volume, strength, and fatigue resistance decline during bedrest? How much does whole-body insulin sensitivity change during bedrest? How do mitochondrial function and protein synthesis change during bedrest? Participants will undergo the following tests before and after a free-living control period and before and after a 5 day period of strict horizontal bedrest: * Magnetic resonance imaging of the thigh muscles * Strength testing of the thigh muscles * Insulin sensitivity testing in response to a mixed meal * Exogenous glucose oxidation in response to a mixed meal * Muscle biopsies from the thigh muscles * Blood samples

Participants needed: 12
Trial details
Age: 18-30Biological sex: AllType: InterventionalSponsor: Queen's UniversityUpdated: Sep 22, 2025Locations: 1
Eligibility criteria

Males and females 18-30 years [+4]

a BMI < 18.5 and > 28 kg/m2 [+10]

Status: Not yet recruiting

Bone Enhanced Ultrasound (BEUS) Data Library Development Project

A common treatment for low back pain involves fluoroscopy-guided spinal facet joint injections and/or medial branch nerve blocks. Unfortunately, fluoroscopy requires expensive equipment and personnel and exposes patients and healthcare providers to ionizing radiation. Ultrasound offers a safer, lower-cost alternative, but the traditional 2-dimensional (2D) ultrasound systems are limited due to poor image quality, particularly in patients with higher body mass index (BMI). As an alternative, a novel Bone Enhanced Ultrasound (BEUS) technology uses artificial intelligence (AI) to create real-time 3-dimensional (3D) images of the spine to guide needle placement for these injections. The AI software is trained by overlaying computed tomography (CT) and ultrasound images from a patient dataset to recognize anatomical landmarks. BEUS aims to ultimately replace fluoroscopy for spinal injections, reducing radiation exposure, lowering healthcare costs, and improving accessibility, especially in rural settings where CT and fluoroscopy are unavailable. A key limitation, however, is that the current AI system is trained based primarily on patients (mostly pediatric) undergoing perioperative assessment of scoliosis. To address this, the current study aims to develop a new, more clinically relevant training AI dataset by collecting spinal ultrasounds from up to 100 adult participants (most/all of whom are followed at the local chronic pain clinic for low back pain) with existing spinal CT or magnetic resonance imaging (MRI) scans. This dataset will be used to retrain the current AI model to enhance the accuracy of 3D spinal reconstructions, thereby improving the clinical relevance of the BEUS system.

Participants needed: 100
Trial details
Age: 18+Biological sex: AllType: ObservationalSponsor: Queen's UniversityUpdated: Jul 29, 2025Duration: 1 Day
Eligibility criteria

Individuals who have had previous CT or MRI scans of their spine in the past 5 y...

< 18 years old

Status: Recruiting

Early Genomic Testing for Inherited Bleeding Disorders

The investigators aim to test the introduction of genomic testing early in the diagnostic pathway for inherited bleeding disorders in patients who have not received a diagnosis after first-line testing. The goal of this clinical trial is to test the introduction of genomic testing early in the diagnostic pathway for patients referred to Hematology for a suspected inherited bleeding disorder. The main questions it aims to answer are: 1. Does adding early genomic testing increase the number of patients who are diagnosed? 2. Does adding early genomic testing decrease the overall time to diagnosis? 3. Is it cost-effective to include early genomic testing in the diagnostic pathway? The investigators will compare with a control group of participants who are receiving standard care (no early genomic testing). Participants will randomized to a standardized diagnostic testing plus early genomic testing group or to the standardized diagnostic testing group only (with the possibility of being offered genomic testing after 1 year in the study).

Participants needed: 212
Trial details
Phase: Early Phase 1Age: 12+Biological sex: AllType: InterventionalSponsor: Queen's UniversityUpdated: Jul 31, 2025Locations: 3
Eligibility criteria

New patient referred for abnormal bleeding. [+2]

Prior diagnosis of an inherited bleeding disorder. [+1]

Status: Recruiting

A Chinese Version of the Thinking Health Program for East Asian Pregnant Immigrant People in Canada

The goal of this study is to determine the feasibility of using a psychosocial intervention culturally adapted in China to support perinatal mental well-being of Chinese immigrant pregnant women in Canada. The intervention is adapted from the Thinking Healthy Program (THP), available through a mobile application, and will be offered to Chinese immigrant pregnant women (22 weeks' gestation or greater) residing in Canada, who are over the age of 18, and speak Mandarin. The main questions this study aims to answer are: * Will the Chinese version of the THP be acceptable to Chinese immigrant pregnant women residing in Canada and will they use the program which is delivered through a mobile App? * How well does the process of recruiting, keeping participants in the study and helping them complete the activities work, so it can be used for a future larger study? Women interested in the study and who meet the study criteria will complete a questionnaire at the start of the study, then use the THP for three weeks, complete questionnaires 3-4 weeks after completing the intervention and 6-8 weeks after having their baby(ies). Some may be asked to participate in an individual interview.

Participants needed: 50
Trial details
Age: 18+Biological sex: FemaleType: InterventionalSponsor: Queen's UniversityUpdated: Jul 28, 2025Locations: 1
Eligibility criteria

pregnant women at ≥ 22 weeks of gestation; AND [+5]

Women currently being treated for mental conditions, including depression

Status: Not yet recruiting

A Tumor Immune Biomarker Guided Approach for Improving Response to BCG in Patients With High-risk NMIBC.

This study is being conducted to establish a novel tumor tissue- and blood-based biomarker test to assess early systemic and local response to immunomodulation by BCG immunotherapy in patients with high-risk non-muscle invasive bladder cancer. Responses will be compared between patients with high-risk NMIBC who are being treated with standard of care BCG therapy and those treated with combination chemotherapy. Local and systemic immune monitoring assays will allow early identification of patients who will not benefit from BCG immunotherapy.

Participants needed: 31
Trial details
Phase: Phase 1, Phase 2Age: 65+Biological sex: AllType: InterventionalSponsor: Queen's UniversityUpdated: Jul 17, 2025Locations: 1
Eligibility criteria

Patients with an initial diagnosis of NMIBC without previous exposure to BCG imm... [+2]

Patients with prior exposure to BCG immunotherapy. [+1]

Status: Not yet recruiting

Vaginal Estrogen for Improvement of Outcomes Following Pelvic Organ Prolapse Surgery

This open-label randomized control trial will study the use of vaginal estrogen in the first six weeks after pelvic organ prolapse (POP) repair surgery. This is a pilot trial that will examine the feasibility of the study, focussing on recruitment rates. Participants will be randomized to one of three groups; (1) no vaginal estrogen for 6 weeks, (2) vaginal estrogen twice weekly for 6 weeks, or (3) vaginal estrogen daily for 6 weeks. Participants will be seen at 6 weeks post surgery, 6 months post surgery, 1 year and 2 years post surgery. Additional outcomes will include patient satisfaction, Genitourinary Syndrome of Menopause (GSM) symptoms, post-operative complications, adherence and safety.

Participants needed: 180
Trial details
Phase: Phase 3Age: 18+Biological sex: FemaleType: InterventionalSponsor: Queen's UniversityUpdated: Jun 26, 2025Locations: 2
Eligibility criteria

Participant who, in the opinion of the investigator, can and will comply with th... [+6]

Participant undergoing anterior and/or posterior repair only (no apical prolapse... [+15]

Status: Not yet recruiting

A Probiotic Based Intervention in Pregnancies Complicated by GDM

This study is a single center randomized control trial of a probiotic based intervention in pregnancies complicated by gestational diabetes. A healthy gut microbiome is now recognized as a key component of human health and dysbiosis of the gut microbiome, including lack of diversity, is believed to contribute to the development of many diseases and alter glucose control. The study aims to explore whether this probiotic intervention will improve glucose control and change the gut microbiome. Participants may be enrolled and randomized after diagnosis of gestational diabetes between 24 and 31 weeks gestation. 115 participants will be randomized in a ratio of 2 in the probiotic intervention group to 1 in the placebo group. Participants will stop taking the intervention at 6 weeks postpartum. At this time, they will be unblinded and offered the option of participating in an open-label extension of the intervention until 6 months postpartum.

Participants needed: 173
Trial details
Phase: Phase 2Age: 16+Biological sex: FemaleType: InterventionalSponsor: Queen's UniversityUpdated: Jun 6, 2025Locations: 1
Eligibility criteria

Participants who, in the opinion of the investigator, can and will comply with t... [+11]

Current diagnosis of severe gestational hypertension, preeclampsia, HELLP, intra... [+11]

Status: Not yet recruiting

Ketamine Assisted Psychotherapy for Treating Comorbid Chronic Pain and PTSD

The goal of this pilot study is to evaluate the feasibility of conducting a clinical trial assessing if ketamine infusions combined to mindfulness therapy works better than psychotherapy alone to treat chronic pain and PTSD in adults living with both conditions. The objectives of the pilot study are to 1) assess the feasibility of the trial methods and 2) assess the feasibility and tolerability of ketamine treatment in combination with psychotherapy. The main questions the future full trial would aim to answer are: * Does the combination of ketamine infusion treatment and mindfulness therapy improve the quality of life in adults living with both chronic pain and PTSD more effectively than mindfulness therapy alone?" * Does the combination of ketamine infusion treatment and mindfulness therapy improve disability, and depressive, PTSD and pain symptoms in adults living with both chronic pain and PTSD more effectively than mindfulness therapy alone?" * Does implementing a brief ketamine infusion protocol safe and tolerable to treat chronic pain and PTSD? Researchers will compare ketamine infusion treatment combined with mindfulness therapy to mindfulness therapy alone to see if the combined treatment works better to treat chronic pain and PTSD. Participants will: * Attend 6 visits with a research team member to complete assessments and questionnaires. * Attend 4 ketamine treatment over 2 weeks, if allocated to the experimental group. * Attend 8 mindfulness therapy group sessions online (1 per week). * Log mindfulness exercises completed during the study period.

Participants needed: 30
Trial details
Phase: Phase 1, Phase 2Age: 18-64Biological sex: AllType: InterventionalSponsor: Queen's UniversityUpdated: Jun 6, 2025
Eligibility criteria

Not listed

Status: Recruiting

Adjunctive Treatment With L-methylfolate for Treatment-Resistant Generalized Anxiety Disorder: a Pilot Study

The goal of this feasibility study is to determine the tolerability and safety of add on treatment with L-methylfolate in patients with treatment-resistant generalized anxiety disorder (GAD). The primary objective is to monitor for side effects and other risks associated with the treatment. Secondary objectives are to compare the severity of symptoms, serum levels of folate, vitamin B12, C-reactive protein, homocysteine, tumor necrosis factor alpha and interleukin 6 before and after treatment. Participants will continue with their usual treatment for GAD and receive add on treatment with L-methylfolate 15 mg per day for 8 weeks. All participants will receive the same intervention.

Participants needed: 10
Trial details
Phase: Phase 4Age: 18-65Biological sex: AllType: InterventionalSponsor: Queen's UniversityUpdated: May 25, 2025Locations: 1
Eligibility criteria

Adults. [+2]

Patients with moderate to severe major depressive disorder based on the Patient... [+7]

Status: Recruiting

Safety, Tolerability, and Preliminary Efficacy of Psilocybin Oral Solution in Adults With Generalized Anxiety Disorder

This Phase 2a clinical trial is designed to evaluate the safety, tolerability, and preliminary efficacy of a 3 mg dose of psilocybin oral solution for the treatment of Generalized Anxiety Disorder (GAD). The study consists of three sequential phases: Screening Phase (up to 4 weeks), Open-label Run-in Phase (4 weeks), Double-blind Treatment Phase (4 weeks) Screening Phase During the Screening Visit, participants will provide informed consent and undergo a comprehensive medical evaluation, including an abbreviated psychiatric assessment, to determine eligibility. To qualify, patients must have a clinician-rated Hamilton Anxiety Rating Scale (HAM-A) score ≥14. Additionally, participants must not be on regular anxiolytic treatment or must have discontinued such treatment at least 4 weeks prior to the start of the Open-label Run-in Phase. Open-label Run-in Phase Eligible patients will proceed to the 4-week Open-label Run-in Phase. During this phase, patients will attend four weekly clinic visits, supplemented by weekly remote contacts (via phone or email). At different timepoints during the OL Run-in Phase, participants will complete safety assessments, undergo cognitive testing and EEG and other patient reported outcomes (PROs). Double-blind Treatment Phase Participants who demonstrate a treatment response during the Open-label Phase-defined as a ≥50% reduction in GAD-7 score from baseline-will be randomized 1:1 to receive either psilocybin oral solution or placebo at the Double-blind Baseline Visit. Patients not meeting the response criteria will undergo End-of-Treatment (ET) procedures at this visit. At different timepoints during the DB Treatment Phase, participants will complete safety assessments, undergo cognitive testing and EEG and other patient reported outcomes (PROs). Completion of the End of Treatment (ET) phase will be 2 weeks to further assess safety and PROs.

Participants needed: 50
Trial details
Phase: Phase 2Age: 18-60Biological sex: AllType: InterventionalSponsor: Queen's UniversityUpdated: May 13, 2025Locations: 1
Eligibility criteria

Must provide written informed consent prior to the initiation of any protocol-sp... [+15]

Personal history of schizophrenia, bipolar affective disorder, delusional disord... [+14]

Status: Not yet recruiting

Using Healthcare Financing and Digital Technology to Improve Hypertension Prevention and Control in Tanzania

The aim of our proposed program is to develop and implement a multilevel, multicomponent and health-financing intervention that will facilitate the scale up of evidence-based strategies to improve non-communicable diseases prevention, detection and control in Tanzania. The investigators will accomplish this by: 1) adapting two intervention components that are candidates for inclusion in a highly effective optimized strategy (called STOP-NCDs) and; (b) Assess their individual and combined effectiveness and 2) conducting a robust, mixed-methods evaluation of the implementation process and assess factors that may influence implementation and sustainability for delivering and scaling the optimized STOP-NCDs strategy. The investigators will select and/or adapt intervention components making up the optimized STOP-NCDs strategy. Using a hybrid clinical-effectiveness implementation design, the investigators will conduct a study in 2 sequential phases: 1) A clinical-effectiveness phase in which the investigators evaluate the effect of our combined strategies (task-sharing and WelTel) versus Usual Care, on rates of systolic BP reduction at 12 months; as well as other secondary outcomes including diagnosis and treatment of diabetes and, patient knowledge of CVD risks and prevention, and, other features of health provider NCD prevention activities. 2) A post-implementation phase in which the investigators use the RE-AIM framework to evaluate changes in the adoption and maintenance of our combined strategies in participating iCHF health facilities across Kilimanjaro region. The investigators will use the WelTel communication and Patient Management platform for to deliver culturally and contextually appropriate evidence-based text messaging to patients. It allows for quality improvement and is a unique tool for our program to scaling low-cost interventions that provide capabilities for tracking of health system service uptake, quality-metrics at health facilities, drug stock-out management, and patient-centered behavioral health interventions. Deployment of WelTel will allow for integration of NCD prevention targeted health services to all adult iCHF members across differing life stages and NCD risk and have a significant impact on increasing quality of care and sustainability of health financing and performance-based incentives through improved prescribing, patient engagement, medication adherence and healthy behaviour change.

Participants needed: 1,320
Trial details
Age: 21-70Biological sex: AllType: InterventionalSponsor: Queen's UniversityUpdated: Feb 14, 2025
Eligibility criteria

All adults with uncontrolled HTN who receive care through iCHF membership and ar...

Adults with controlled HTN or those without a diagnosis of HTN [+1]

Status: Not yet recruiting

Exploring Feasibility, Acceptability and Impact of Using Neurofeedback with Persons with Mild Cognitive Impairment

The goal of this pilot study is to determine the feasibility, acceptability and potential impact of using neurofeedback interventions to manage cognitive, emotional, and behavioural symptoms in individuals with mild cognitive impairment (MCI). The main question\[s\] it aims to answer are: (1) What is the feasibility, acceptability, and appropriateness of using the Nonlinear Dynamical Neurofeedback intervention for persons living with MCI? (2) What is the feasibility, acceptability, and appropriateness of using the Low Energy Neurofeedback System (LENS) intervention for persons living with MCI? (3) What is the feasibility, acceptability, and appropriateness of using the Brain Music neurofeedback intervention for persons living with MCI? (4) What is the potential impact of five weeks of a neurofeedback intervention on cognitive, affective, and behavioural symptoms experienced by persons living with MCI? Participants will be randomly assigned to either the Nonlinear Dynamical (NLD), Low Energy Neurofeedback System (LENS), or Brain Music neurofeedback intervention groups or a control group receiving usual care.

Participants needed: 20
Trial details
Age: 55+Biological sex: AllType: InterventionalSponsor: Queen's UniversityUpdated: Jan 7, 2025Locations: 1
Eligibility criteria

Adults with mild cognitive impairment (MCI) attending the Memory Clinic at Provi...

Adults with cognitive issues related to a psychiatric diagnosis or acute brain i...

Status: Recruiting

Pilot Feasibility Study of a Pragmatic Mixed-Methods Randomized Controlled Trial on a Follow-Up Bundle of Care for ICU Survivors and Caregivers

\~80% of ICU survivors experience profound long-term cognitive, physical, and psychiatric impairments known as post-intensive care syndrome (PICS). Caregivers additionally experience similar detrimental psychosocial effects following discharge. Despite this knowledge, follow-up care is almost non-existent. ICU follow-up clinics may mitigate these long-term impacts, but lack evaluation of their effectiveness. This trial will evaluate the effectiveness of ICU follow-up clinics vs. standard-of-care in improving qualitative/clinical outcomes of ICU survivors and caregivers, with those receiving follow-up care hypothesized to have improved outcomes.

Participants needed: 40
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: Queen's UniversityUpdated: Dec 4, 2024Locations: 1
Eligibility criteria

ICU survivors [+10]

ICU survivors and caregivers [+3]