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PD-1 Inhibitor Based Induction Chemotherapy Followed by De-escalation Protocols in OPSCC

Selective De-escalation of Radiotherapy Density Based on Response to Induction Chemotherapy With PD-1 Inhibitor Toripalimab, Docetaxel, Cisplatin, and Capecitabine in Locally Advanced Oropharyngeal Carcinoma: A Prospective Phase II Trial (DEDICATE-1)

Status
UNKNOWN
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06156891
Enrollment
60
Registered
2023-12-05
Start date
2022-06-29
Completion date
2025-07-30
Last updated
2023-12-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Oropharyngeal Cancer

Keywords

Oropharyngeal Cancer, Immune Checkpoint Inhibitor, Induction chemotherapy, De-escalation, HPV-related, HPV-unrelated

Brief summary

More and more studies have shown that the efficacy and prognosis of HPV (Human papillomavirus)-positive oropharyngeal cancer (OPC) patients are better than those of others. However, in the NCCN (National Comprehensive Cancer Network) Oncology Clinical Guidelines for OPC treatment, each group of p16+ is consistent with the corresponding group of p16-, which indicates that the treatment of OPC is basically the same regardless of whether it is related to HPV. Several studies attempted to reduce the toxicities of treatment of HPV related OPC through reduced-dose radiation and showed promising results, and all of the studies have shown that induction chemotherapy is a good way to screen followed treatment. Those who are effective in induction chemotherapy are usually more sensitive to radiation therapy, and reducing the intensity of subsequent treatment will not affect the survival outcome of patients. Immune checkpoint inhibitors (ICIs) have proved to improve outcomes of head and neck cancers. However, In KEYMAT-048, a Phase III controlled trial of relapsed/metastatic head and neck squamous cell carcinoma, ICIs showed an overall survival advantage, but the survival advantage was independent of HPV status. Therefore, patients with HPV-negative OPC still have a good response to ICIs. So we added anti-PD-1 antibody Toripalimab to induction chemotherapy in order to achieve better response rates to receive de-escalation chemoradiotherapy followed regardless of whether it is related to HPV.

Interventions

Two cycles toripalimab+docetaxel+cisplatin+capecitabine (TPF) induction chemotherapy followed by reducing radiation dose(60Gy/30Fx) and omitting concurrent cisplatin chemotherapy when responses to induction chemotherapy are ≥ 70% Partial Response(PR) in HPV-related patients. Two cycles toripalimab+docetaxel+cisplatin+capecitabine (TPF) induction chemotherapy followed by reducing radiation dose(60Gy/30Fx) combined with concurrent cisplatin chemotherapy when responses to induction chemotherapy are ≥ 70% Partial Response(PR) in HPV-urelated patients.

PROCEDUREConventional treatment

Two cycles toripalimab+docetaxel+cisplatin+capecitabine (TPF) induction chemotherapy followed by concurrent cisplatin chemoradiotherapy with standard radiation dose (70.4Gy/32Fx) when responses to induction chemotherapy are less than 70% Partial Response (PR) regardless of HPV status.

Sponsors

Fudan University
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

Histological diagnosis of squamous cell carcinoma of oropharynx; IHC p16 positive or PCR HPV16 positive; IHC p16 negative or PCR HPV16 negative; T3-4N0-3M0 or T1-2N2-3M0 according to UICC/AJCC 8th staging system; Age ≥18; No prior anti-tumor treatment; Informed consent obtained; Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1; Normal complete blood count; Normal hepatic function; Normal renal function (creatinine ≤ 1.5 times the upper limit of normal). -

Exclusion criteria

Previous radiotherapy; A history of any other type of malignancy; Pregnancy or lactation; Obvious disfunction of liver, renal, cardiac or lung function; Un controlled infection; Systemic metastasis or distant metastasis; Patients with severe gastrointestinal diseases; Patients with mental disorders affecting patient participation in trial judgement. \-

Design outcomes

Primary

MeasureTime frameDescription
ORR2 yearObjective Response Rate
LRRR2 yearlocoregional recurrence rate
PFS2 yearprogression free survival
OS2 yearoverall survival

Secondary

MeasureTime frameDescription
QoL2 yearQuality of Life according to EORTC QLQ-C30
Number and percentage of Participants With Treatment-Related Adverse Events as Assessed by CTCAE v5.0 and RTOG2 yearsThe detail number and percentage of adverse events by every systems Assessed by CTCAE v5.0 and RTOG.
The percentage of Grade 3 and 4 adverse reactions in NCI-CTC AE 5.0 and RTOG2 yearThe incidence (percentage) of late toxicity , Grade 3 and 4 adverse reactions in NCI-CTC AE 5.0 and RTOG.

Countries

China

Contacts

Primary ContactXiaoshen Wang, MD, Ph.D
xiaoshen.wang@fdeent.org18917785187
Backup ContactRuichen Li, MD
liruichensogou@126.com17317822194

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026