Recruiting PHASE4 Recurrent Respiratory Papillomatosis

New treatment option for Recurrent Respiratory Papillomatosis

Official title Zopa Retreatment and Vector Shedding in Adults With RRP

ClinicalTrials.gov ID: NCT06538480

What this study is testing

What is Zopapogene imadenovec (Zopa)?

Zopapogene imadenovec (Zopa) is an investigational medicine, given as an injection under the skin, being studied as a potential treatment for recurrent respiratory papillomatosis.

Plain-language explanation of the investigational treatment - it is being studied and is not an approved or proven therapy. The study team can confirm the details.

What it's testing
This open-label study evaluates safety, vector shedding, and retreatment efficacy of Zopapogene imadenovec (Zopa) in adults with recurrent respiratory papillomatosis (RRP). Two cohorts will be enrolled (n=30): Cohort 1 to assess the magnitude and duration of adenoviral vector shedding in urine, feces, skin, and nasal tissue; Cohort 2 to assess the complete response rate following retreatment.
  • Phase 4: studies an already-approved treatment

A plain-language read of the study's public ClinicalTrials.gov listing. The study team confirms the details.

Who can take part

Ages 18 and older

You may be able to join if

  • Age 18 years and older.
  • Clinical diagnosis of recurrent respiratory papillomatosis with histological confirmation of papilloma.
  • Cohort 1: Treatment-naïve with respect to Zopa.
  • Cohort 2: Received a minimum of four administrations of Zopa at 5 × 10\^11 PU per injection and require clinically indicated debulking procedures.
  • Presence of laryngotracheal papillomas accessible for endoscopic cleanout.

You likely can't join if

  • Conditions or therapies that increase risk or interfere with participation per investigator judgment.
  • Systemic corticosteroids \>10 mg prednisone equivalent or other immunosuppressive medications within 14 days prior to dosing.
  • Other systemic RRP treatments or investigational agents within 30 days.
  • History of heparin-induced thrombocytopenia or vaccine-induced thrombotic thrombocytopenia.
  • Active uncontrolled HIV, hepatitis B, or hepatitis C infection.
  • Pregnant or nursing women.
See the full eligibility criteria
Who can join
  • Age 18 years and older.
  • Clinical diagnosis of recurrent respiratory papillomatosis with histological confirmation of papilloma.
  • Cohort 1: Treatment-naïve with respect to Zopa.
  • Cohort 2: Received a minimum of four administrations of Zopa at 5 × 10\^11 PU per injection and require clinically indicated debulking procedures.
  • Presence of laryngotracheal papillomas accessible for endoscopic cleanout.
  • ECOG performance status 0 or 1.
  • Sexually active participants of reproductive potential must agree to use contraception during treatment and for 120 days for males and 6 months for females after last dose.
  • Ability to understand and sign informed consent. Key
What rules you out
  • Conditions or therapies that increase risk or interfere with participation per investigator judgment.
  • Systemic corticosteroids \>10 mg prednisone equivalent or other immunosuppressive medications within 14 days prior to dosing.
  • Other systemic RRP treatments or investigational agents within 30 days.
  • History of heparin-induced thrombocytopenia or vaccine-induced thrombotic thrombocytopenia.
  • Active uncontrolled HIV, hepatitis B, or hepatitis C infection.
  • Pregnant or nursing women.
  • Known allergy to any study drug component.

The study team makes the final eligibility decision.

Where it's taking place

  • Atlanta, Georgia, United States
  • Bethesda, Maryland, United States
  • Cincinnati, Ohio, United States

Questions & answers

Do participants get paid in this trial?

This listing doesn't specify compensation. Many trials still reimburse travel or offer a stipend, so it's worth asking the study team when you connect.

Is it free to join, and do I need insurance?

Searching and applying through BridgeMD is free. In clinical trials the study-related treatment and visits are generally provided at no cost to you. You usually don't need insurance to take part - confirm specifics with the study team.

How long does this study last?

The listing doesn't state an exact length. The study team walks you through the schedule and number of visits before you decide to enroll.

Who can join this trial?

This study is enrolling all sexes, 18 years and older. The study team makes the final eligibility decision.

Where is this trial taking place?

Study sites include Atlanta, Georgia, United States; Bethesda, Maryland, United States; Cincinnati, Ohio, United States. Enter your location above to see the nearest site and check your eligibility.

Explore other conditions

BridgeMD is an information and trial-matching tool - not medical advice, and not the study sponsor. Details come from ClinicalTrials.gov; the study team decides eligibility.