Condition
Sex Differences clinical trials and research
As of November 12, 2026, Find a Trial lists 4 Sex Differences clinical trials that are recruiting, at sites in 2 countries (most in Switzerland (2), Canada (2)). 1 was first registered in the last 30 days. By phase: Phase 4 (1). Every study is explained in plain English. Data from ClinicalTrials.gov and NIH RePORTER, updated November 12, 2026.
- 4Clinical trials
- 1New in 30 days
- 2Countries
Newest Sex Differences clinical trials
| Study | Phase | Where | Status | Registered |
|---|---|---|---|---|
| Sex Differences in BDNF Response to a Maximal Exercise Test | — | Hamilton, Ontario | Recruiting | Nov 3, 2026 |
| How MOR Activation Affects Stress and Social Behavior, and How Childhood Unpredictability Modulates This in Men and Women | — | Zurich | Recruiting | Aug 21, 2026 |
| Sex differences in postoperative delirium and whether family visits help | — | Zurich | Recruiting | Mar 31, 2026 |
| Donor-recipient sex matching for red blood cell transfusions in adult ICU patients | Phase 4 | Hamilton, Ontario and 7 other locations | Recruiting | Feb 21, 2025 |
All recruiting trials (4)
-
Sex Differences in BDNF Response to a Maximal Exercise Test
This study tests whether men and women have different levels of BDNF in the blood after a maximal exercise test.
-
How MOR Activation Affects Stress and Social Behavior, and How Childhood Unpredictability Modulates This in Men and Women
This study tests whether activating the mu opioid receptor with morphine changes stress responses and social behavior, and whether sex and early life unpredictability alter those effects.
-
Sex differences in postoperative delirium and whether family visits help
This study looks to see if a patient’s sex changes the risk of delirium after non-cardiac surgery and whether family visits can help prevent it, especially in adults 65 and older.
-
Donor-recipient sex matching for red blood cell transfusions in adult ICU patients
We will test whether giving adult ICU patients red blood cell transfusions from donors of the same sex improves survival compared with transfusions from donors of the opposite sex.
Related topics
Quick answers
How many Sex Differences clinical trials are recruiting right now?
4, as of November 12, 2026. 1 of them was first registered in the last 30 days. We update this list each time we refresh our data from ClinicalTrials.gov.
Where are these trials running?
In 2 countries. The most sites are in Switzerland (2 trials), Canada (2 trials). Each study page lists its sites and which ones are recruiting.
What phases are they in?
Phase 4: 1. Trials with no phase listed are usually device, behavioural or observational studies.
How do I join one?
Open a study, check the "Is this trial a fit for you?" section, then contact the study team listed on the page. They will ask a few screening questions. Asking is free and does not commit you to anything. Talk it over with your doctor first.
Find the studies that fit you
A list is a starting point. Tell us your situation in your own words and we'll rank the studies that match and explain why. It's free and needs no account.