NCT04298255 · Wake Forest University Health Sciences
Experimental Round Spermatid Injection (ROSI) to Treat Infertile Couples
(ROSI)
What this study is about
The purpose of this research study is to evaluate if special types of cells called round spermatids can be gathered from men with non-obstructive azoospermia and used (in absence of elongated spermatids and spermatozoa) to reliably and effectively create pregnancy with a procedure called Round Spermatid Injection (ROSI). This process is similar to In Vitro Fertilization, or 'IVF'.
View original scientific description
The purpose of this research study is to evaluate if special types of cells called round spermatids can be gathered from men with non-obstructive azoospermia and used (in absence of elongated spermatids and spermatozoa) to reliably and effectively create pregnancy with a procedure called Round Spermatid Injection (ROSI). This process is similar to In Vitro Fertilization, or 'IVF'. In addition, this study wants to test the safety of ROSI and see what effects (good and bad) it has on embryo created from this method.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Males with no elongated spermatids or spermatozoa present but with round spermatids present on TESE (Testicular Sperm Extraction)
- Male diagnosed with non-obstructive Azoospermia
- Male partner ≥18
- Female partner greater than 18 years of age and less than 38 years of age or Anti Mullerian Hormone (AMH) greater than 2 ng/ml.
Exclusion criteria
- Males with obstructive azoospermia
- Males with presence an adequate number of elongated spermatids or spermatozoa
Where
- Winston-Salem, North Carolina
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Sep 16, 2025 · Source of record for eligibility and locations