Clinical trials

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Search and review clinical trials. Use filters to narrow results by trial status, phase, treatment, biological sex and sponsor.

Condition / disease
Location
Status: Recruiting

Expert Validation of an Autonomous Personalized Physical Activity Algorithm

This study aims to validate a personalized physical activity algorithm for risk screening and individualized exercise prescription using a modified online Delphi process. International experts in physical activity and exercise will evaluate the algorithm's components over two rounds of questionnaires, with consensus defined as ≥70% agreement. If needed, a focus group will resolve any remaining disagreements. Validation of this algorithm may support safer, more effective autonomous exercise, promoting adherence, improved health outcomes, and population-level benefits.

Participants needed: 9
Trial details
Age: 18+Biological sex: AllType: ObservationalSponsor: Polytechnic Institute of PortoUpdated: Mar 17, 2026Locations: 1
Eligibility criteria

Experts in Physical Activity and Exercise with recognized scientific or professi... [+3]

Individuals unable to provide informed consent. [+1]

Status: Not yet recruiting

ipRGC as a Potential Biomarker for Predicting Transcranial Magnetic Stimulation Treatment Response in Major Depressive Disorder

This research explores the potential of retinal ganglion cells (RGCs), particularly intrinsically photosensitive RGCs (ipRGCs), as biomarkers for predicting response to transcranial magnetic stimulation (TMS) in treatment-resistant depression (TRD). We also aim to assess the impact of TMS treatment on RGCs and ipRGCs in TRD patients, investigating associations with clinical improvements and cognitive status. A clinical trial involving 44 patients with treatment-resistant depression (TRD) will be conducted. All participants will receive rTMS targeting the dorsolateral prefrontal cortex (DLPFC). Data will be collected pre- and post-intervention, as well as at a 2-month follow-up, using multiple outcome measures, including the post-illumination pupil response (PIPR). The project seeks to confirm the effectiveness of TMS and the potential of RGCs/ipRGCs as predictors of treatment response, thereby facilitating the development of personalized treatment strategies for TRD patients undergoing rTMS therapy.

Participants needed: 44
Trial details
Age: 18-65Biological sex: AllType: InterventionalSponsor: Polytechnic Institute of PortoUpdated: Mar 16, 2026
Eligibility criteria

Diagnosis of MDD, confirmed via the structured clinical interview; [+3]

Prior rTMS treatment; [+9]