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AAV2hAQP1

Phase 1

Squamous Cell Head and Neck Cancer | Monoclonal antibody | Oncology |MeiraGTx Holdings plc|Last Updated: Aug 24, 2026

Target and mechanism

ModalityMonoclonal antibody

Also known as AAV2-hAQP1

Success Probability

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Market & Valuation

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Trial Design

UNCONTROLLEDDMC
Total Trials1
Total Enrollment17

FDA Designations

RMATORPHAN_DRUGBREAKTHROUGH_THERAPY

Clinical trial landscape

AAV2hAQP1 · 1 trial · 3 indications

Phase 1 1
NCT02446249Safety of a Single Administration of AAV2hAQP1, an Adeno-Associated Viral Vector Encoding Human Aquaporin-1 to One Parotid Salivary Gland in People With Irradiation-Induced Parotid Salivary HypofunctionSquamous Cell Head and Neck Cancer
COMPLETED17 Analytics
PHASE1COMPLETED
Safety of a Single Administration of AAV2hAQP1, an Adeno-Associated Viral Vector Encoding Human Aquaporin-1 to One Parotid Salivary Gland in People With Irradiation-Induced Parotid Salivary Hypofunction
Squamous Cell Head and Neck CancerUnlock trial analytics

Study Endpoints

Primary Endpoints

Safety of vector
36 months

Secondary Endpoints

Efficacy of treatment
36 months
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
single arm dose escalationEXPERIMENTALsingle arm dose escalation

Interventions

NameTypeDescription
AAV2hAQP1BIOLOGICALInfusion of gene therapy
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites1

* INCLUSION CRITERIA: 1. At least 18 years of age 2. History of external beam radiation therapy for head and neck cancer, with a mean dose equal to or greater than 15 Gy to a parotid gland. 3. Abnormal parotid gland function as judged by both absence of unstimulated parotid salivary flow and ...

Countries:United States
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Recent Changes (Last 90 Days)

HIGHAug 24, 2026NCT02446249Status: ACTIVE_NOT_RECRUITING → COMPLETED
HIGHAug 24, 2026NCT02446249Status: ACTIVE_NOT_RECRUITING → COMPLETED

Frequently asked questions about AAV2hAQP1

What is AAV2-hAQP1 used for?

AAV2-hAQP1 is an investigational gene therapy being developed for squamous cell head and neck cancer and for grade 2 and 3 late xerostomia caused by radiotherapy for cancers of the upper aerodigestive tract, excluding the parotid glands. It is designed to address irradiation-induced parotid salivary hypofunction.

What does AAV2-hAQP1 target?

AAV2-hAQP1 is an adeno-associated viral vector encoding human aquaporin-1. It is designed to deliver the gene for aquaporin-1 to salivary gland tissue to restore salivary function in patients with radiation-induced xerostomia.

Who makes AAV2-hAQP1?

AAV2-hAQP1 is being developed by MeiraGTx Holdings plc, a biopharmaceutical company traded on the stock exchange under the ticker symbol MGTX.

What phase is AAV2-hAQP1 in?

AAV2-hAQP1 is in Phase 2 clinical development. It has received FDA designations including Regenerative Medicine Advanced Therapy (RMAT), Orphan Drug, and Breakthrough Therapy. It is investigational and not yet approved for commercial use.

What clinical trials is AAV2-hAQP1 in?

AAV2-hAQP1 has been studied in two clinical trials. NCT02446249 was a Phase 1 safety study in 17 participants with irradiation-induced parotid salivary hypofunction, completed in the United States. NCT06544798 is a Phase 2 long-term follow-up study enrolling 276 participants with grade 2 and 3 late xerostomia in the United States and Canada.

Is AAV2-hAQP1 the same as AAV2hAQP1?

Yes, AAV2-hAQP1 is also referred to as AAV2hAQP1 in clinical trial documentation. Both names refer to the same adeno-associated viral vector encoding human aquaporin-1.