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Vanquish® Water Vapor Ablation for Prostate Cancer

April 13, 2026

Introduction: A New Minimally Invasive Approach to Prostate Tissue Ablation

For men diagnosed with localized prostate cancer, treatment decisions often involve balancing effective cancer control with preservation of urinary and sexual function. Traditional options such as surgery and radiation are highly effective but can impact surrounding structures critical to quality of life.

Vanquish® Water Vapor Ablation is an emerging, minimally invasive treatment designed to address this challenge. By using targeted thermal energy delivered through sterile water vapor, this approach aims to ablate prostate tissue while minimizing damage to adjacent nerves and structures. As clinical experience grows, Vanquish is becoming an important addition to the spectrum of prostate cancer treatment options.

What Is Vanquish Water Vapor Ablation?

Vanquish Water Vapor Ablation is a transurethral, image-guided procedure that uses high-energy sterile water vapor to destroy targeted prostate tissue. The system delivers convective thermal energy directly into the prostate, where it spreads only within the natural boundaries of the prostate capsule to achieve controlled tissue ablation.

Unlike surgery, there are no incisions. Unlike radiation, there is no exposure to ionizing energy over multiple sessions. Instead, Vanquish is designed as a single-session, minimally invasive therapy performed through the urethra.

This approach is part of a broader category of focal therapies, where the goal is to treat known areas of cancer while preserving as much normal prostate tissue and function as possible.

How Does the Vanquish Procedure Work?

Consultation and Evaluation

Before treatment, patients undergo a detailed evaluation including PSA levels, biopsy results, and multiparametric MRI imaging. This allows the care team to determine whether the cancer is localized and suitable for a targeted treatment approach.

Treatment Planning

Imaging is used to map the prostate and identify areas requiring treatment. This step is critical in ensuring precise delivery of therapy to cancerous tissue while preserving surrounding structures.

Transurethral Vapor Delivery

During the procedure, the patient is asleep under anesthesia. The Vanquish system is inserted into the urethra. Using live ultrasound and MRI guidance, the physician delivers controlled doses of sterile water vapor directly into the targeted areas of the prostate.

The vapor releases thermal energy that ablates prostate tissue in a highly controlled fashion, with the goal of confining treatment to the intended region. This causes less injury to the nerve bundles, which are responsible for urinary and sexual function, compared to more radical treatments like radical prostatectomy or radiation. It also causes less damage to the urethral sphincter, minimizing urinary incontinence recovery.

Procedure Time and Recovery

The procedure is typically completed in a single session under anesthesia. The procedure generally takes about 30 to 45 minutes. Patients go home the same day. A urethral Foley catheter is often placed at the time of the procedure to prevent urinary retention. The Foley is typically removed within 3-5 days. Aside from the catheter, men are able to return to normal daily activities within a few days.

Because the treatment is minimally invasive and avoids incisions, recovery is generally faster than traditional surgical approaches.

Follow-Up Care

Post-treatment monitoring includes PSA testing, MRI scans, and often a follow-up biopsy to ensure the cancer has been successfully treated.

Who Is a Candidate for Vanquish?

Vanquish Water Vapor Ablation is being evaluated primarily for men with localized prostate cancer, particularly those who:

  • Have low- to intermediate-risk disease
  • Have cancer identifiable on MRI and confined to a specific region of the prostate
  • Prefer a minimally invasive treatment option
  • Place a high value on preserving urinary continence and sexual function

As with other focal therapies, careful patient selection is essential. Men with more extensive or high-risk disease may be better suited for surgery, radiation, or multimodal treatment approaches.

Clinical Data and the VAPOR 2 Trial

Vanquish Water Vapor Ablation is currently being studied in the ongoing VAPOR 2 pivotal clinical trial, which is evaluating its safety and effectiveness in treating prostate tissue.

Early data from the trial has been encouraging:

  • At 6 months, approximately 91% of patients achieved clearance of clinically significant in-field disease (Grade Group 2 or higher) after a single treatment
  • The procedure has demonstrated a favorable safety profile, with no device-related serious adverse events reported
  • Rates of urinary incontinence and erectile dysfunction have been low in early follow-up

These preliminary results suggest that Vanquish may offer meaningful cancer control while maintaining a strong quality-of-life profile. However, longer-term data is still being collected, and ongoing follow-up will be important in defining its role relative to established treatments.

Potential Advantages of Vanquish

Vanquish introduces several potential advantages compared to traditional treatment approaches:

  • Minimally invasive: No incisions and typically performed as an outpatient procedure
  • Single-session treatment: Avoids the prolonged treatment schedule of radiation
  • Targeted therapy: Focuses treatment on specific areas of disease
  • Function preservation: Designed to reduce the risk of urinary incontinence and erectile dysfunction
  • Repeatable and compatible with future treatments: Does not eliminate the option for surgery or radiation if needed later

These characteristics make it an appealing option for appropriately selected patients seeking effective treatment with reduced impact on daily life.

Important Considerations

While early results are promising, it is important to understand that Vanquish is a relatively new technology.

  • The system has received FDA clearance for thermal ablation of prostate tissue
  • It has not yet been fully evaluated for long-term prostate cancer outcomes
  • Ongoing clinical trials, including VAPOR 2, will help define durability and long-term effectiveness

For this reason, treatment decisions should be made with a clear understanding of both the potential benefits and the evolving nature of the data.

Conclusion

Vanquish Water Vapor Ablation represents an innovative approach to prostate cancer treatment, offering a minimally invasive, targeted alternative for men with localized disease. With encouraging early results from the VAPOR 2 trial and growing clinical adoption, it has the potential to play an important role in modern prostate cancer care.

As with all treatment options, the decision to pursue Vanquish should be based on a thorough evaluation of disease characteristics, patient priorities, and a detailed discussion with an experienced prostate cancer specialist who can guide individualized care.

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