NCT04788823

Brief Summary

  1. 1.Determine impact of prednisone on semen parameters post vasectomy reversal (evaluated both using prednisone as a combined cohort as well as via 3 separate protocols).
  2. 2.Determine impact of prednisone on pregnancy rates post vasectomy reversal (evaluated both using prednisone as a combined cohort as well as via 3 separate protocols).
  3. 3.Assess adverse events with prednisone utilization

Trial Health

55
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
100

participants targeted

Target at P50-P75 for phase_4

Timeline
Completed

Started Feb 2021

Longer than P75 for phase_4

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

February 24, 2021

Completed
7 days until next milestone

First Submitted

Initial submission to the registry

March 3, 2021

Completed
6 days until next milestone

First Posted

Study publicly available on registry

March 9, 2021

Completed
4.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2026

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 1, 2026

Completed
Last Updated

February 13, 2025

Status Verified

February 1, 2025

Enrollment Period

4.9 years

First QC Date

March 3, 2021

Last Update Submit

February 12, 2025

Conditions

Outcome Measures

Primary Outcomes (3)

  • Impact of Prednisone on semen concentration post vasectomy reversal

    Determine impact of prednisone on semen concentration post vasectomy reversal (evaluated both using prednisone as a combined cohort as well as via 3 separate protocols).

    3 years

  • Impact of prednisone on pregnancy rates post vasectomy reversal.

    Determine impact of prednisone on pregnancy rates post vasectomy reversal (evaluated both using prednisone as a combined cohort as well as via 3 separate protocols).

    3 Years

  • Assess adverse events with prednisone utilization

    Assess adverse events with prednisone utilization

    3 years

Secondary Outcomes (3)

  • Impact of Prednisone on semen concentration post vasectomy reversal

    1 year

  • Impact of prednisone on pregnancy rates post vasectomy reversal.

    1 year

  • Impact of Prednisone on semen concentration post vasectomy reversal

    Up to 1 year

Study Arms (4)

Control

NO INTERVENTION

Group 1 will represent controls and will not receive prednisone in the 3-year post-op period.

Prednisone Monthly - Scheduled

EXPERIMENTAL

Group 2 will receive 3, one-month courses of prednisone (20 mg daily x 1 week, 10 mg daily x 1 week, 5 mg x 2 weeks). These will be given at the beginning of months 0, 2, and 4 and will be self-administered.

Drug: Prednisone

Prednisone Monthly - As Needed

EXPERIMENTAL

Group 3 will receive a maximum of 3, one-month courses of prednisone (20 mg daily x 1 week, 10 mg daily x 1 week, 5 mg x 2 weeks). These will be administered based on sequential semen analyses. If a semen analysis demonstrates a drop in concentration from a prior analysis or if it shows a 0 concentration, the course will be administered.

Drug: Prednisone

Prednisone Every Other Week

EXPERIMENTAL

Group 4 will receive alternating 1 week dosages of prednisone (1 week on, 1 week off - 5 mg daily only) for a total of 24 weeks

Drug: Prednisone

Interventions

Treatment groups will be administered different dosages of Prednisone post vasectomy reversal.

Prednisone Every Other WeekPrednisone Monthly - As NeededPrednisone Monthly - Scheduled

Eligibility Criteria

Age18 Years - 65 Years
Sexmale
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Men undergoing a first-time vasectomy reversal at the Male Fertility and Peyronie's Clinic
  • years of age
  • Current sexual partner with desire to achieve pregnancy immediately
  • Intent of reversal to restore fertility
  • Partner \<36 years of age
  • Partner with no known fertility issues
  • Prior history of paternity

You may not qualify if:

  • Current corticosteroid use
  • Prior vasectomy reversal
  • Prior chemotherapy
  • Testosterone use within 1 year of the vasectomy reversal
  • Solitary testicle
  • History of diabetes mellitus
  • History of systemic fungal infection
  • Hypertension
  • Any degree of diagnosed renal insufficiency
  • Partner on birth control within past 3 months

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Cure PD

Orem, Utah, 84057, United States

Location

Related Publications (1)

  • Trost L, Helo S, Brearton K, Warner R, Ziegelmann M, Kohler T, Savage J. Impact of prednisone on vasectomy reversal outcomes (iPRED study): results from a randomized, controlled clinical trial. Fertil Steril. 2025 May;123(5):804-811. doi: 10.1016/j.fertnstert.2024.11.019. Epub 2024 Nov 20.

MeSH Terms

Interventions

Prednisone

Intervention Hierarchy (Ancestors)

PregnadienediolsPregnadienesPregnanesSteroidsFused-Ring CompoundsPolycyclic Compounds

Study Officials

  • Benjamin Green

    The Male Fertility and Peyronie's Clinic

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: The study cohort will be randomized to one of 4 arms: control or 3 different drug protocols.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 3, 2021

First Posted

March 9, 2021

Study Start

February 24, 2021

Primary Completion

February 1, 2026

Study Completion

February 1, 2026

Last Updated

February 13, 2025

Record last verified: 2025-02

Data Sharing

IPD Sharing
Will not share

Locations