Clinical trial Recruiting at 1 site Phase 4 Interventional Ages 18 to 89

Mechanism-guided treatment versus proton-pump inhibitor therapy for chronic throat symptoms

Official title: The MVP Trial: A Randomized Controlled Trial of Mechanism Guided vs PPI Strategy for Laryngopharyngeal Reflux

Run by University of California, San Diego · NCT06999577 · Data updated 2026-11-12

This trial will test whether a mechanism-guided approach combining personalized acid-suppression and voice therapy helps adults (18–89) with chronic throat symptoms more than usual proton pump inhibitor (PPI) treatment.

More Cough trials

Quick facts

PhasePhase 4
Study typeInterventional
Ages18 Years to 89 Years
SexAll
Enrollment160 (estimated)
SponsorUniversity of California, San Diego
Academic / other
Locations1 site (San Deigo, California)
StatusRecruiting
StartedJune 4, 2025
Main results expectedMay 1, 2029
Study endsJuly 1, 2029
Registry record updatedAugust 1, 2025
Trial IDNCT06999577 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults aged 18–89 with at least 8 weeks of laryngeal symptoms who are undergoing standard evaluation for LPR including endoscopy and reflux monitoring off acid suppression are ideal candidates.

Probably not a fit

Patients with PPI intolerance, prior foregut surgery, achalasia, active tobacco use, pregnancy or breastfeeding, inability to undergo reflux monitoring, or clear esophageal mucosal disease are unlikely to benefit from this protocol.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

Adults referred for evaluation of laryngopharyngeal reflux (LPR) who undergo endoscopy and ambulatory reflux monitoring off acid suppression are randomized 1:1 to a mechanism-guided strategy or to usual-care PPI therapy in an 8-week blinded phase. The mechanism-guided arm personalizes use of acid suppression and provides laryngeal recalibration/voice therapy plus GERD lifestyle advice, while the usual-care arm receives standard PPI-based management (omeprazole 40 mg or matched placebo during the blinded phase). Primary comparison is the proportion of participants achieving a predefined symptom response after the intervention period. Participants are assessed with baseline clinical testing and follow-up visits at the study site in San Diego.

Why it matters

Potential benefit: If successful, the approach could improve symptom control and reduce unnecessary prolonged PPI use by tailoring treatment to the underlying mechanisms of throat symptoms.

How similar studies have gone: Standard PPI therapy is commonly used for these symptoms but prior randomized data are mixed, and mechanism-guided personalized approaches are relatively novel with limited randomized evidence to date.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. 18-89 years of age
2. \>8 weeks of laryngeal symptoms (cough, throat clearing, dysphonia)
3. Standard evaluation for LPR, undergoing EGD (with endoscopic evaluation of the hypopharynx) and reflux monitoring off acid suppression
4. Off acid suppression therapy for at least 2 weeks prior to randomization.

Exclusion Criteria:

1. PPI intolerance and/or known hypersensitivity to the formulation or substituted benzimidazoles
2. History of foregut surgery
3. Known diagnosis of achalasia
4. Inability to fast for 4 hours (no food or drink)
5. Active tobacco use
6. Pregnant or breastfeeding
7. Unable to consent in English or Spanish
8. Unable to provide consent without a legal guardian or representative
9. Imprisoned
10. Endoscopic findings conclusive with esophageal mucosal abnormalities
11. Unable to proceed with reflux monitoring
12. Use of acid suppression during the reflux monitoring and/or before the study medication (omeprazole or placebo) is dispensed
13. Prior LRT for reflux related symptoms
14. History of major psychiatric comorbidity
15. Unable to attend in person study visits at UCSD

Where it's running

  • University of California San Diego
    San Deigo, California, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.