Window of Opportunity to Preserve Laryngeal Function

A Phase II Window of Opportunity in Preserving Laryngeal Function (WOLF) Trial

Phase 2 Interventional University of Pittsburgh · NCT07423078

This trial will try a short course of platinum chemotherapy plus paclitaxel and the immunotherapy toripalimab before surgery to see if adults with advanced laryngeal or hypopharyngeal squamous cell cancer can keep their voice box and still get good cancer control.

Quick facts

PhasePhase 2
Study typeInterventional
Enrollment87 (estimated)
Ages18 Years and up
SexAll
SponsorUniversity of Pittsburgh Academic / other
Drugs / interventionstoripalimab, chemotherapy, immunotherapy
Locations1 site (Pittsburgh, Pennsylvania)
Trial IDNCT07423078 on ClinicalTrials.gov

What this trial studies

Patients with previously untreated, resectable Stage III–IV laryngeal or hypopharyngeal squamous cell carcinoma receive neoadjuvant combination therapy of carboplatin or cisplatin, paclitaxel, and the PD-1 inhibitor toripalimab. Response to this induction chemoimmunotherapy is used as a bioselection tool to guide organ preservation versus upfront total laryngectomy and adjuvant therapy. The trial will track safety, tolerability, response rates, and disease survival outcomes following this approach. Toripalimab has shown benefit in other head and neck settings when combined with chemotherapy, and the study builds on prior observations that neoadjuvant responders have better outcomes and are more likely to succeed with nonsurgical therapy.

Who should consider this trial

Good fit: Adults with pathologically confirmed, previously untreated Stage III–IV squamous cell carcinoma of the larynx or hypopharynx that is potentially resectable, with ECOG performance status 0–2 and willingness to follow contraceptive requirements are ideal candidates.

Not a fit: Patients with unresectable disease, distant metastases, poor performance status, or those who require immediate surgery may not benefit from this neoadjuvant organ-preservation approach.

Why it matters

Potential benefit: If successful, this approach could allow more patients to avoid total laryngectomy and preserve natural voice and airway function without compromising cancer control.

How similar studies have performed: Similar chemoimmunotherapy combinations have improved outcomes in other head and neck cancers and neoadjuvant response has been linked to better survival, but using toripalimab specifically for laryngeal preservation is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Pathologically confirmed and previously untreated squamous cell carcinoma of the larynx or hypopharynx
2. AJCC 8th Edition Stage III - IV disease (T1-T2/N1-N3, T3-T4/N0-N3)
3. Disease (primary \& nodal) must be potentially surgically resectable and curable with conventional surgery and CRT
4. ECOG PS 0 - 2
5. Sexually active fertile subjects and their partners must agree to use highly effective method of contraception prior to study entry, during the course of the study, and for 1 year after the last dose of treatment (whichever is later). An additional contraceptive method, such as a barrier method (e.g., condom), is required. In addition, men must agree not to donate sperm and women must agree not to donate eggs (ova, oocyte) for the purpose of reproduction during these same periods.
6. Female subjects of childbearing potential must not be pregnant or breastfeeding at screening. Female subjects are considered to be of childbearing potential unless one of the following criteria is met: Permanent sterilization (hysterectomy, bilateral salpingectomy, or bilateral oophorectomy) or documented postmenopausal status (defined as 12 months of amenorrhea in a woman \> 45 years-of-age in the absence of other biological or physiological causes). Note: Documentation may include review of medical records, medical examination, or medical history interview by study site staff.
7. Must have normal organ and marrow function as defined below:

   * Hemoglobin ≥ 9.0 g/dL
   * Absolute neutrophil count ≥ 1,500/mcL
   * Platelet count ≥ 100,000/mcL
   * Total bilirubin ≤ 1.5 X the institutional upper limit of normal (ULN)
   * AST (SGOT) ≤ 2.5 X institutional upper limit of normal (ULN)
   * ALT (SGPT) ≤ 2.5 X institutional ULN
   * Creatinine clearance ≥ 40 mL/min/1.73 m2 for patients with a creatinine level above institutional normal
8. Must have the ability to understand and the willingness to sign a written informed consent document.

Exclusion Criteria:

1. Prior treatment for head and neck cancer
2. Unresectable laryngeal or hypopharyngeal squamous cell carcinoma
3. Distant metastatic disease
4. Has an active autoimmune disease requiring systemic treatment within the past 3 months, or a syndrome that requires ongoing systemic steroids or immunosuppressive agents. Subjects with vitiligo, Grave's disease, or psoriasis not requiring systemic therapy or resolved childhood asthma/atopy would be an exception to this rule. Subjects that require intermittent use of bronchodilators or local steroid injections would not be excluded from the study. Subjects with hypothyroidism or Sjogren's syndrome will not be excluded from the study.
5. Has a history of non-infectious pneumonitis that required steroids, evidence of interstitial lung disease, or currently active non-infectious pneumonitis.
6. Known allergy or hypersensitivity to carboplatin or cisplatin, toripalimab, or paclitaxel.
7. Prior malignancy within 2 years that in the investigator's opinion would be likely to affect the outcomes for the patient.
8. Peripheral sensory neuropathy \> grade 2 by CTCAE v5.0
9. Has a history or current evidence of any condition, therapy, or laboratory abnormality that might confound the results of the trial, interfere with the subject's participation for the full duration of the trial, or is not in the best interest of the subject to participate, in the opinion of the treating investigator.
10. Has acute or chronic active hepatitis B and C virus infection or known history of untreated hepatitis B (defined as hepatitis B surface antigen \[HBsAg\] reactive) or known active hepatitis C virus (HCV) (defined as HCV RNA \[qualitative\]) or HIV infection (see note).

    1. Note: No testing for Hepatitis B, Hepatitis C, or HIV is required unless mandated by local health authority or clinically indicated.
    2. Note: Participants with a history of HIV infection are considered eligible if CD4+ T cell counts are ≥350 cells/µL and the patient has had no opportunistic infections in the last 12 months.

Where this trial is running

Pittsburgh, Pennsylvania

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Head and Neck Squamous Cell Carcinoma - Recurrent/MetastaticLocally Advanced Laryngeal Squamous Cell CarcinomaHypopharyngeal Squamous Cell Carcinomaimmunotherapylaryngectomyneoadjuvant
Last reviewed 2026-06-13 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.