Plan A Occlusion and Reversal System Feasibility Study

NCT07361120 | Recruiting Phase 2

• 1 other identifier: CIP102
• Study Type: interventional
• Target: 40
• Locations: 1 country
• Sites: 1

Brief Summary

Prospective, multicenter, single-arm, open label, interventional clinical trial investigating the safety and effectiveness of the Plan A Male Contraceptive System to occlude the vas deferens to block the passage of sperm and then be reversed to subsequently allow the passage of sperm through the vas deferens.

Conditions

Fertility, Male; Healthy Male Adults; Fertility

Keywords

Vasectomy, Fertility, Reproductive Health, Male Contraception, Vas Occlusion, No Scalpel Vasectomy,

Outcome Measures

Primary Outcomes (5)

• Study subjects achieving azoospermia

  Total number of subjects (N=40) achieving azoospermia

  Starting at the 30 day follow-up visit

• Study subjects that return to baseline semen levels

  Total number of subjects (N=10) that return to baseline semen levels after reversal

  Correlating to Outcome 1, that follow-up timepoint at which azoospermia is reached starting at the 30 day follow-up

• Adverse Events

  Rate and severity of adverse events.

  From the first subjects screening visit through the last subjects 14 Day phone follow up visit.

• Subject Comfort

  Subject Comfort Assessment Scale Post Occlusion and Reversal

  From the first subjects occlusion visit until the last subjects 14 Day phone follow up visit.

• Histology

  Excised portion of the vas deferens will be prepared with formalin for histological evaluation

  From the first subjects occlusion visit until the last subjects vasectomy, approximately 9 months

Secondary Outcomes (1)

• Subject Satisfaction/Comfort Assessment

  From the first subjects occlusion visit until the last subjects 14 Day phone follow up visit.

Study Arms (2)

Group 1: Occlusion Procedure

EXPERIMENTAL

This will be Group 1. Group1 will have the occlusion procedure but will not have the reversal procedure.

Device: Occlusion System

Group 2: Reversal Procedure

EXPERIMENTAL

This will be Group 2. Group 2 will have both the occlusion and reversal procedure.

Device: Occlusion System

Interventions

Occlusion System DEVICE

The occlusion system comprised of the Delivery Lumen Access Device and Vasalgel.

Group 1: Occlusion Procedure; Group 2: Reversal Procedure

Eligibility Criteria

• Age: 25 Years - 65 Years
• Sex: male
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Male subject who is seeking and suitable to undergo a vasectomy as a long-term form of contraception
• Male subject who has voluntarily signed and dated the Institutional Review Board (IRB)/Ethics Committee (EC) approved informed consent form (ICF) for this study prior to initiation of any screening or study specific procedures
• to 65 years of age at the time of consent
• Body Mass Index (BMI) \<31 kg/m2
• Good health for undergoing a vasectomy as confirmed by medical history, physical examination and clinical laboratory tests of blood and urine at the time of screening
• Normal semen analysis defined by the WHO Laboratory Manual for the Examination and Processing of Human Semen (6th Edition), based on the average of two semen samples ≥2 days and ≤7 days apart
• In the opinion of the Investigator, subject is suitable to undergo a vasectomy as a form of long-term contraception
• Agreement to use an effective method of contraception during the entire clinical trial until the planned vasectomy
• Lives in close proximity to the trial site to enable provision of fresh semen samples unless the subject agrees to provide semen samples at the trial site or laboratory

You may not qualify if:

• (On exam, has any of the following); one or both vasa not present, abnormal scrotum, large varicocele, hydrocele, filariasis or elephantiasis of scrotum, or intrascrotal mass that would make the subject not suitable for the study.
• Prior testicular surgery, testicular injury or prior vasectomy with vasovasostomy (vasectomy reversal)
• Recurrent pain with ejaculations
• Has known allergic reaction to sulfur-containing products or has had a prior severe allergic response to injectable or implantable devices
• Has local genital infections such as balanitis, scrotal skin infection, epididymitis, or orchitis, or tender (inflamed) tip of the penis, but may be enrolled after resolution of an acute infection
• History of prostatitis or benign prostatic hypertrophy requiring treatment
• Has undergone prior chemotherapy
• Has known current coagulopathy or other bleeding disorders
• Currently taking or planning to take any type of systemic medication which could affect sperm count or ejaculation (e.g., anabolic steroids, chemotherapy, alpha blocker)
• Subjects with cystic fibrosis
• Subjects with a history of inguinal hernia repair
• Vulnerable subjects (e.g., subjects with cognitive challenges, incarcerated, etc.)
• Currently participating in another study involving an investigational device or drug (or has participated in a study within the last 30 days prior to screening).
• Any site staff member with delegated study responsibilities or a family member of a site staff member with delegated study responsibilities
• In the opinion of the Investigator, there are issues or concerns that may compromise the safety of the subject or confound the reliability of compliance and information acquired in this study

Sponsors & Collaborators

• Next Life Sciences: lead
• Clinico Pty Ltd: collaborator

Study Sites (1)

Western Urology

Maribyrnong, Victoria, 3032, Australia

RECRUITING

Study Officials

• Homi Zargar, MD

  Western Urology

  PRINCIPAL INVESTIGATOR

Central Study Contacts

Darlene Walley R Chief Executive Officer, PhD

CONTACT

1-415-407-5229; darlene.walley@nextlifesciences.org

Study Design

• Study Type: interventional
• Phase: phase 2
• Allocation: NON RANDOMIZED
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: SEQUENTIAL
• Sponsor Type: INDUSTRY
• Responsible Party: SPONSOR

Model Details: Group 1 will include 30 subjects that will be followed for up for a maximum of 6 months post occlusion procedure, or until they achieve azoospermia at which point they will be offered a vasectomy procedure. Group 2 will recruit ten subjects who will be followed for up for a maximum of 6 months post occlusion procedure, or until they achieve azoospermia at which point they will have the reversal procedure using the Plan A RD (Reversal Device). This group will be followed for up to another 3 months maximum, or until baseline semen levels are achieved at which point they will be offered a vasectomy procedure. Ten men (all sites) reaching azoospermia after their occlusion procedure will be allocated to Group 2 and will go on to have the reversal procedure.

Study Record Dates

• First Submitted: December 16, 2025
• First Posted: January 22, 2026
• Study Start: January 1, 2026
• Primary Completion (Estimated): August 1, 2026
• Study Completion (Estimated): September 1, 2026
• Last Updated: January 22, 2026

Record last verified: 2026-01

Data Sharing

• IPD Sharing: Will not share

Locations

AU (1)