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Clinical Research Directory

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9 clinical studies listed.

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Recruitment

Tundra lists 9 Recruitment clinical trials. Each listing includes eligibility criteria, study locations, and direct links to research sites in the Tundra directory.

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RECRUITING

NCT07290335

Optimizing Strategies to Maximize Patient Recruitment Yield

This platform trial aims to evaluate the effectiveness of different messaging strategies within a MyChart messaging program for research recruitment. MyChart is a patient portal system within the Electronic Medical Record (EMR), and messages can be sent directly to patients about research opportunities.

Gender: All

Ages: 18 Years - Any

Updated: 2026-02-25

1 state

Recruitment
ACTIVE NOT RECRUITING

NCT06347484

Developing a Learning COmmunity to Increase eNgagemeNt and Enrollment in Cardiovascular Clinical Trials (CONNECT)

The CONNECT: "Developing a learning COmmunity to increase eNgagemeNt and Enrollment in cardiovascular Clinical Trials" is comprehensive, participant-centered learning platform designed to increase diversity in cardiovascular disease research among women and Black and Latino adults. CONNECT will deploy electronic health record (EHR)-informed and community-engaged recruitment approaches to identify and recruit adults with cardiovascular disease or a cardiovascular disease risk factor to join CONNECT. Participants who join CONNECT will receive tailored educational information on cardiovascular health and research participation via text message. Participants will also have the opportunity to be connected to ongoing cardiovascular research studies based on basic demographic information and areas of interest. The educational information will be sent to participants for 12 months. The CONNECT platform will be used to evaluate recruitment methods. The investigators hypothesize the proportion of women and Black and Latin adults enrolled in trials that partner with CONNECT will be higher following the use of CONNECT for recruitment. Investigators also hypothesize that participating in CONNECT will increase participants' clinical trial awareness, trust, and willingness to participate in clinical trials.

Gender: All

Ages: 18 Years - Any

Updated: 2026-01-06

1 state

Cardiovascular Diseases
Hypertension
Diabetes Type 2
+4
RECRUITING

NCT07207772

EIT-guided PEEP Titration Versus Standard Ventilation in Bariatric Surgery

This study is a prospective, single-center, single-blind, randomized controlled clinical trial. Patients scheduled for laparoscopic bariatric surgery will be selected and randomly assigned to either the EIT-guided individualized PEEP group (Group P-eit) or the control group (Group P-8). Group P will be ventilated using the PEEP value determined by EIT, while Group C will be ventilated with a fixed PEEP value of 8 cmH2O.The primary outcome is the incidence of postoperative pulmonary complications (PPCs) within 72 hours after surgery.

Gender: All

Ages: 18 Years - 65 Years

Updated: 2025-10-06

1 state

Electrical Impedance Tomography (EIT)
Postoperative Pulmonary Complications (PPCs)
Recruitment
+2
ACTIVE NOT RECRUITING

NCT06168578

The Effect of Alveolar Recruitment Manoeuvre on Optic Nerve Sheath Diameter in Laparoscopic Hysterectomies

Laparoscopic total hysterectomy is the most common gynaecological surgical procedure after caesarean section. In laparoscopic total hysterectomy, intraabdominal pressure increases, venous return decreases, hypercarbia and acidosis may occur due to pneumoperitoneum due to CO2 insufflation and upright trendelenburg position (TP). Cerebral blood flow, intracranial pressure (ICP) and intraocular pressure (IOP) increase. One study showed that TP and an intraabdominal pressure of mmHg significantly increased ICP. CO2 insufflation into the abdominal cavity causes upward displacement of the diaphragm, resulting in an increased risk of regurgitation, decreased lung volumes and compliance, atelectasis, increased airway resistance and ventilation-perfusion mismatch. At the same time, combined with the effects of general anaesthesia, a decrease in partial arterial oxygen pressure (PaO2) is expected in patients. The alveolar recirculation manoeuvre (ARM), is based on the technique of opening atelectatic lung fields by keeping the airway pressure high for a while. This manoeuvre can be performed with methods such as PEEP, CPAP, and pressure-controlled mechanical ventilation. High PEEP application may cause an increase in ICP and a decrease in cerebral perfusion pressure by increasing intrathoracic pressure and decreasing cerebral venous return. Therefore, intracranial pressure monitoring should be performed especially in patients with PEEP above 8-10 cmH2O. Intraventricular and intraparenchymal measurements, which are the gold standard methods for ICP monitoring, are invasive procedures with various risks. Noninvasive methods such as cranial CT, brain MRI, transcranial Doppler, and measurement of optic nerve sheath diameter (ONSD) can also be used for ICP measurement. Ultrasonography of the optic nerve sheath diameter is an increasingly common method because it is noninvasive and can be performed at the bedside. The optic nerve sheath is the continuation of the transverse subarachnoid space and the cerebral duramater. It is connected to the intracranial subarachnoid space with cerebrospinal fluid. Therefore, an increase in ICP increases the optic nerve sheath diameter (ONSD). Maissan et al. They think that ONSD reflects the changes in ICP simultaneously. The aim of this study was to evaluate the effect of ARM on intracranial pressure in patients undergoing total laparoscopic hysterectomy under general anaesthesia using optic nerve sheath diameter.

Gender: FEMALE

Ages: 18 Years - 65 Years

Updated: 2025-09-25

Recruitment
Optic Nerve
Hysterectomy
NOT YET RECRUITING

NCT07061002

Evaluation of Recruitment Effectiveness in Patients With Obstructive Sleep Apnea Syndrome Using Lung Ultrasound

Patients with obstructive sleep apnea syndrome are at higher risk for respiratory complications after surgery. Oxygen depletion and respiratory distress are common in patients with obstructive sleep apnea syndrome. In this study, the effectiveness of the recruitment maneuver applied in the postoperative period will be investigated via lung ultrasound. Recruitment is a technique performed to improve the oxygen levels of patients. Patients diagnosed with obstructive sleep apnea syndrome between the ages of 18-65 will be included in the study and anesthesia and surgical procedures will be followed. The aim of the study is to compare the pulmonary complication rates between patients who underwent recruitment and those who did not, and to examine the effects of factors such as age and gender on these complications via lung ultrasound.

Gender: All

Ages: 18 Years - 65 Years

Updated: 2025-07-11

Postoperative Atelectasis
Lung Ultrasonography Score
Recruitment
RECRUITING

NCT06588101

Clinical Trial Recruitment and Retention Strategies for Family Members in the ICU

There is a need to identify strategies that improve the conduct of clinical trials involving family members of intensive care unit (ICU) patients. The purpose of the present study is to evaluate recruitment and retention strategies for clinical trials involving family members of ICU patients. 4 strategies (2 recruitment and 2 retention) will be tested. Investigators will integrate the strategies into three existing studies that involve family members of ICU patients. Participants will be randomized using a 2x2 factorial design. The co-primary outcomes are recruitment percentage (participants enrolled/participants approached) and retention percentage (participants completing follow-up/participants enrolled).

Gender: All

Ages: 18 Years - Any

Updated: 2025-06-04

1 state

Family Members
Recruitment
Clinical Study
+5
NOT YET RECRUITING

NCT06689020

Positive Expiratory Pressure (PEP) and Continuous High-frequency Oscillation (CHFO) on Lung RECRUITment Using Electrical Impedance Tomography (EIT) - The PEP-RECRUIT Study

This single-center observational study aims to assess the effects of continuous high-frequency oscillation (CHFO) and continuous positive expiratory pressure (CPEP) therapy on lung recruitment using electrical impedance tomography (EIT) in spontaneously breathing patients admitted to the intensive care unit.

Gender: All

Ages: 18 Years - Any

Updated: 2024-11-14

1 state

Recruitment
Respiratory Failure
NOT YET RECRUITING

NCT06511635

Multicenter Quantitative and Qualitative Study of the Determinants of Participation in a Cytomegalovirus Preventive Vaccine Study in France in Women Aged 18 to 40 Years Old.

During a vaccine clinical trial of Cytomegalovirus (CMV) vaccine, one of the participants' motivations was to prevent an infection responsible for malformations in a future child. Would their attitude towards a vaccine trial be the same in the context of a vaccine designed to protect them individually? By improving the knowledge of clinical research and determinants in women aged 18 to 40, this study could improve recruitment methods in this specific population for future vaccine trials within the CIC1408 infectious diseases and vaccinology area at Saint-Etienne University Hospital.

Gender: FEMALE

Ages: 18 Years - 40 Years

Updated: 2024-07-22

Recruitment
RECRUITING

NCT05780164

Improving Access to Lung Cancer Clinical Trials

There are \~85,000 lung cancer patients (LCPs) in the UK; yet only around 8% were recruited into clinical trials in 2021/22. LCPs need opportunities to take part in clinical trials to access new treatments, increasing their quality of life, treatment choices and life expectancy. Discussions with nurses can help patients make better treatment decisions, improving experiences of care. However, research has shown that lung cancer nurses (LCNs) often feel unable to discuss participation in trials with patients due to lack of knowledge, confidence, time and training. This study aims to develop and test a research recruitment tool for LCNs, to support LCPs to enter clinical trials. Objectives include to: * Explore reasons for low uptake of LCPs into clinical trials * Develop a tool for LCNs to talk to patients about clinical trials * Test whether the tool improves the number and quality of discussions nurses have with LCPs about clinical trials The study has four phases: Phase 1: A literature review will identify problems that make clinical trial uptake difficult for LCPs, carers and clinicians Phase 2: Six group discussions with LCNs, patients and carers will explore issues that create potential barriers for patients taking part in clinical trials. The groups will take place online, last approximately one hour and be recorded. Phase 3: Part 1\&2 findings will help us develop a LCN research recruitment tool. The tool will contain information on how nurses obtain information about LC clinical trials, research teams, communication issues, practical issues and how to reach LCPs. Phase 4: The research recruitment tool will be tested in four UK NHS hospitals. A survey will identify any changes in nurses' clinical trials awareness and confidence before and after using the tool. Interviews with LCNs, patients and carers will explore their views on the tool, clinical trials participation and experiences of care.

Gender: All

Ages: 18 Years - 65 Years

Updated: 2024-04-09

1 state

Lung Cancer
Patient Engagement
Research, Communication
+2