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HB-201 administration.

Phase 1

HPV-Related Squamous Cell Carcinoma | Small molecule | Oncology |HOOKIPA Pharma Inc.|Last Updated: Sep 15, 2025

Success Probability

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Market & Valuation

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Trial Design

CONTROLLEDDMC
Total Trials1
Total Enrollment198

FDA Designations

No designations recorded

Clinical trial landscape

HB-201 administration. · 1 trial · 1 indication

Phase 1 1
NCT04180215A Phase 1/2 Study in Patients With HPV16+ Recurrent/Metastatic Head and Neck Squamous Cell Carcinoma and Other CancersHPV-Related Squamous Cell Carcinoma
COMPLETED198 Analytics
PHASE1COMPLETED
A Phase 1/2 Study in Patients With HPV16+ Recurrent/Metastatic Head and Neck Squamous Cell Carcinoma and Other Cancers
HPV-Related Squamous Cell CarcinomaUnlock trial analytics

Study Endpoints

Primary Endpoints

Phase I Dose Escalation: Determine Phase II dose based on incidence of dose-limiting toxicities.
From dosing until 21-28 days after first dose

Determine the recommended Phase II dose in terms of safety and tolerability for intravenously administered HB-201, and intravenously administered HB-202 by assessing drug limiting toxicities.

Phase II Dose Expansion: Number of participants with preliminary antitumor activity based on objective response rate.
Until progression, (estimated up to 30-months)

Assess the preliminary antitumor activity of dosage regimens of HB-201 and HB-202 using Response Evaluation Criteria in Solid Tumors (RECIST) to determine objective response rate (ORR).

Secondary Endpoints

Phase I Dose Escalation: Number of participants with adverse events (type, frequency, severity).
From informed consent through 30 days after last dose.
Phase I Dose Escalation: Number of participants with preliminary antitumor activity based on objective response rate and disease control rate.
Until progression, (estimated up to 30-months)
Phase II Dose Expansion: Number of participants with confirmed duration of preliminary antitumor activity.
Up to 30-months (until progression)
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Ph I, Group 1 and Group 2EXPERIMENTALPatients with HPV 16+ HNSCC or Non-HNSCC who had tumor progression or recurrence on standard of care therapy.
Ph I, Group 3 and Group 4EXPERIMENTALPatients with HPV 16+ HNSCC or Non-HNSCC who had tumor progression or recurrence on standard of care therapy.
Ph II, Group BEXPERIMENTALPatients with HPV 16+ HNSCC who are eligible to receive immune checkpoint inhibitor as part of standard of care.
Ph II, Group EEXPERIMENTALPatients with HPV 16+ HNSCC who are eligible to receive pembrolizumab as part of 1L standard of care.
Ph II, Group FEXPERIMENTALPatients with HPV 16+ cancers who had tumor progression or recurrence on standard of care therapy and who are eligible to receive pembrolizumab as part of 2L+ standard of care..
Ph I, sub-studyEXPERIMENTALPatients with HPV 16+ HNSCC who had tumor progression or recurrence on standard of care therapy

Interventions

NameTypeDescription
HB-201 intravenous administration.DRUGDose / Schedule determined by 3+3 dose escalation (3 to 6 patients per cohort).
HB-202 intravenous administration alternating with HB-201 intravenous administration.DRUGDose / Schedule determined by 3+3 dose escalation (3 to 6 patients per cohort).
HB-201 intravenous administration + standard of care regimen including pembrolizumab.DRUGDose Expansion
HB-202 / HB-201 alternating intravenous administration + pembrolizumab.DRUGDose Expansion
HB-202 / HB-201 alternating intravenous administration + standard of care regimen including pembrolizumab.DRUGDose Expansion
HB-201 or HB-201/HB-202 alternating treatment using CD8 PET Tracer (Zr-Df-IAB22M2C)DRUGDose escalation; 10 patients
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites34

Inclusion Criteria All Patients: * Documentation of confirmed HPV 16+ cancer via genotype testing. * ≥ 1 measurable lesion by imaging for tumor response following RECIST * ECOG performance status of 0 to 1. * Prior curative radiation therapy and prior focal palliative completed per protocol-specif...

Countries:United StatesNetherlandsSpain
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Frequently asked questions about HB-201 administration.

What is HB-201 used for?

HB-201 is an investigational therapy being studied for the treatment of HPV-related squamous cell carcinoma, specifically in patients with HPV16+ recurrent or metastatic head and neck squamous cell carcinoma and other cancers. It is currently in Phase 1 clinical development.

Who is developing HB-201?

HB-201 is being developed by HOOKIPA Pharma Inc., a biopharmaceutical company. The company's stock is traded under the ticker symbol HOOK. The drug is currently in Phase 1 clinical trials for HPV-related squamous cell carcinoma.

What phase is HB-201 in?

HB-201 is in Phase 1 clinical development. It is an investigational drug and has not been approved by regulatory authorities. The drug is being studied in a Phase 1/2 trial that has been completed, with a total enrollment of 198 participants.

What clinical trials is HB-201 in?

HB-201 is being studied in clinical trial NCT04180215, titled 'A Phase 1/2 Study in Patients With HPV16+ Recurrent/Metastatic Head and Neck Squamous Cell Carcinoma and Other Cancers.' This trial has been completed and enrolled 198 participants across the United States, Netherlands, and Spain.

Is HB-201 FDA approved?

HB-201 is not FDA approved. It is an investigational drug currently in Phase 1 clinical development for HPV-related squamous cell carcinoma. The clinical trial for HB-201 has been completed, but the drug has not received regulatory approval.