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ClinicalTrials.gov 2 recruiting now early-phase tilt small index

Xerostomia: early-phase trial registry

2 of 14 indexed Xerostomia trials are currently recruiting, with more weight in Phase 1-2.

Corpus placement: #1,230 of 28,707 conditions by registered trial count.

14 US clinical trials · 2 currently recruiting · #1,230 of 28,707 conditions by registered trial count

Xerostomia: 14 US clinical trials tracked, 2 recruiting.

Xerostomia is the subject of 14 registered US clinical trials on ClinicalTrials.gov, 2 of them currently open to new participants. 2 are in Phase 3-4 (later-stage) and 4 in Phase 1-2 (earlier-stage). The most active sponsor is Tufts University, running 2 of these trials.

Enrollment posture brief

Registry condition xerostomia

OPEN 2 | RECR 14% | LATE 2 | EARLY 4 | RANK #1230 | SPON 2

Nearest open-share peer: Adverse Drug Events (14% recruiting · 7 trials)

Acute Respiratory Failure35.7%Adherence, Medication35.7%Acromegaly28.6%Xerostomia (this)14%Abscess7.1%
Open-enrollment share among volume-matched conditions near Xerostomia

Xerostomia lists 2 open slots (14% of 14 indexed trials). Peers are matched on registered volume, not therapeutic-area browse lists. How peer matching works →

Key findings

What ClinicalTrials.gov does not surface for Xerostomia on its own pages , computed from the registry mirror as of 2026-08-08. Each line carries its own denominator so it can be quoted as it stands.

  1. Xerostomia is recruiting below its size-band peers.

    2 of 14 indexed trials (14.3%) are open to enrollment, against a 46.5% average across 27,806 conditions with fewer than 20 trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.

  2. Sponsorship of Xerostomia trials is spread across many organizations.

    Tufts University accounts for 2 of 14 trials (14.3%). 11 distinct sponsors appear on at least one study for this condition label.

  3. Most Xerostomia trials plan to enrol fewer than 100 people.

    Median target enrolment is 54 among the 14 trials that report a genuine target (sentinel values excluded). 11 of those (78.6%) plan for fewer than 100 participants.

  4. Xerostomia research is mostly interventional.

    11 interventional and 3 observational studies make up this index (78.6% interventional). Study type is sponsor-reported on ClinicalTrials.gov.

Phase 14Phase 31Phase 41

Open and recent trials

14 total, page 1 of 1

RECRUITING Phase 1 40 participants

d-Limonene +Radiation +PlatinumBasedChemo for Xerostomia Prevention in LocallyAdvanced HNSCC

Stanford University

NCT04392622

RECRUITING Phase 1 36 participants

Dose-Escalation Trial of Mesenchymal Stromal Cells in Patients With Medical Xerostomia

University of Wisconsin, Madison

NCT06392711

ACTIVE NOT RECRUITING 575 participants

Observational Study of Dental Outcomes in Head and Neck Cancer Patients

Wake Forest University Health Sciences

NCT02057510

ACTIVE NOT RECRUITING Phase 3 70 participants

Dry Mouth Toothpaste Study - Comparing Two Toothpastes With Arginine

Tufts University

NCT06365047

ACTIVE NOT RECRUITING NA 27 participants

Effect of Whitening Agent With Emulsion Gel in Saliva and Halitosis

Tufts University

NCT06194123

ACTIVE NOT RECRUITING Phase 1 23 participants

Study Transplanting Bone Marrow Cells Into Salivary Glands to Treat Dry Mouth Caused by Radiation Therapy

University of Wisconsin, Madison

NCT05820711

COMPLETED 100 participants

Prospective Evaluation of Patient Reported Xerostomia After Whole Brain Radiation

UNC Lineberger Comprehensive Cancer Center

NCT02682199

COMPLETED NA 100 participants

Potential of an Experimental Mouthwash Formulation to Reduce Dry Mouth Symptoms

GlaxoSmithKline

NCT02641912

COMPLETED 70 participants

Effect of Childhood Radioiodine Therapy on Salivary Function

Boston Children's Hospital

NCT02375451

COMPLETED NA 56 participants

Consumer Perception of an Experimental Mouthwash After a Single Use in Dry Mouth Subjects

GlaxoSmithKline

NCT03005041

COMPLETED Phase 4 54 participants

Study of the Effectiveness of Cevimeline on Oral Health in Patients With Radiation Induced Xerostomia

American Academy of Otolaryngology-Head and Neck Surgery Foundation

NCT00466388

COMPLETED NA 40 participants

Evaluation of the Efficacy of 3M Dry Mouth Moisturizing Spray

Solventum US

NCT04186806

COMPLETED NA 24 participants

SaliPen Human Factors Study for OTC Labeling

Saliwell

NCT05058430

COMPLETED Phase 1 24 participants

An Evaluation of the Impact of a Single Dose of P-552 on Oral Mucosal Wetness

Parion Sciences

NCT01369589

Phase Distribution

PhaseTrial count
Phase 1 4
Phase 3 1
Phase 4 1

Named interventions

Most-linked intervention names on Xerostomia records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.

Biotene mouthwash Other
2 trials
Cevimeline Drug
1 trials
Biotene Moisturizing Mouth Spray to 3M Dry Mouth Moisturizing Spray Device
1 trials
3M Dry Mouth Moisturizing Spray to Biotene Moisturizing Mouth Spray Device
1 trials
Mineral Water Other
1 trials
Bottled mineral water Other
1 trials
P-552 Drug
1 trials
No Electrical salivary stimulator system assigned to subjects without xerostomia Device
1 trials

US sites by state

Facility locations filed on Xerostomia trials. A trial with sites in several states counts in each.

Massachusetts 7 trials
Wisconsin 2 trials
Pennsylvania 2 trials
North Carolina 2 trials
California 2 trials
Virginia 1 trials
New York 1 trials
Kentucky 1 trials

Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.

What to do with this Xerostomia page

14 registered trials, 2 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.

Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This Xerostomia condition card totals 14 registered trials; most-linked intervention Biotene mouthwash; top US site state Massachusetts. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.