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PRGN-2012- Phase I; Dose Level 1

Phase 1

Recurrent Respiratory Papillomatosis | Small molecule | Infectious Disease |Precigen, Inc.|Last Updated: Jun 11, 2025

Success Probability

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Market & Valuation

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Trial Design

CONTROLLED
Total Trials1
Total Enrollment38

FDA Designations

BREAKTHROUGH_THERAPYORPHAN_DRUGACCELERATED_APPROVALPRIORITY_REVIEW

Clinical trial landscape

PRGN-2012- Phase I; Dose Level 1 · 1 trial · 3 indications

Phase 1 1
NCT04724980Adjuvant PRGN-2012 in Adult Patients With Recurrent Respiratory PapillomatosisRecurrent Respiratory Papillomatosis
ACTIVE NOT_RECRUITING38 Analytics
PHASE1ACTIVE NOT_RECRUITING
Adjuvant PRGN-2012 in Adult Patients With Recurrent Respiratory Papillomatosis
Recurrent Respiratory PapillomatosisUnlock trial analytics

Study Endpoints

Primary Endpoints

Determine the percentage of subjects with a complete response following treatment with PRGN-2012
1 year

A complete response is defined as no requirement for surgical intervention in the 12 months after treatment

Determine the incidence of dose limiting toxicities to evaluate safety and identify RP2D of PRGN-2012
28 days

The incidence of dose limiting toxicities in Phase 1 will be reported per dose level. The dose level at which less than or equal to 1 out of 6 patients experience DLT will be identified as a RP2D.

Secondary Endpoints

Safety of PRGN 2012 at RP2D
1 year
Immune Responses
1 year
Change in RRP Staging Assessment Scores Over Time
1 year
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Phase I; Dose Level 1EXPERIMENTALA standard dose escalation design was used to evaluate PRGN-2012 at a dose level of 1 × 10\^11
Phase I; Dose Level 2EXPERIMENTALA standard dose escalation design was used to evaluate PRGN-2012 at a dose level of 5 × 10\^11
Phase II; Dose Level 2EXPERIMENTALA dose of 5 x 10\^11 PU was established as the RP2D, and the Phase 2 portion was implemented. The Phase 2 portion is designed as a dose expansion study, where patients were treated at the RP2D to evaluate the safety and efficacy of PRGN-2012.

Interventions

NameTypeDescription
PRGN-2012 - Phase I; Dose Level 1DRUGIn Phase 1, dose level 1 of the clinical trial, PRGN-2012 is administered at 1 × 10\^11 particle units as adjuvant therapy prior to standard debulking surgery.
PRGN-2012 - Phase I; Dose Level 2DRUGIn Phase 1, dose level 2 of the clinical trial, PRGN-2012 is administered at 5 × 10\^11 particle units as adjuvant therapy prior to standard debulking surgery.
PRGN-2012 - Phase II; Dose Level 2DRUGThe Phase 2 portion is designed as a dose expansion study where patients are treated at the RP2D of 5 x 10\^11 PU.
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Eligibility Criteria

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

INCLUSION CRITERIA: * Age 18 years and older * Clinical diagnosis of RRP * Histological diagnosis of papilloma confirmed by pathology report from a CLIA-certified (or comparable) laboratory * Presence of laryngotracheal papillomas with or without pulmonary RRP * A history of 3 or more interv...

Countries:United States
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Frequently asked questions about PRGN-2012- Phase I; Dose Level 1

What is PRGN-2012 used for?

PRGN-2012 is an investigational therapy being studied for the treatment of Recurrent Respiratory Papillomatosis, a condition caused by papillomavirus infections. It is currently in Phase 1 clinical development and has not been approved by the FDA. The drug is being evaluated in adult patients with this condition.

Who makes PRGN-2012?

PRGN-2012 is being developed by Precigen, Inc., a biopharmaceutical company traded on the NASDAQ under the ticker symbol PGEN. The company is conducting clinical trials to evaluate the safety and efficacy of this investigational therapy for Recurrent Respiratory Papillomatosis.

What phase is PRGN-2012 in?

PRGN-2012 is currently in Phase 1 clinical development. It is an investigational drug and has not received FDA approval. The ongoing Phase 1 trial is active but not recruiting participants, and the drug has received several FDA designations including Breakthrough Therapy, Orphan Drug, Accelerated Approval, and Priority Review.

What clinical trials is PRGN-2012 in?

PRGN-2012 is being studied in a Phase 1 clinical trial with the identifier NCT04724980, titled 'Adjuvant PRGN-2012 in Adult Patients With Recurrent Respiratory Papillomatosis.' This trial is active but not recruiting, with an enrollment of 38 participants in the United States. The study is controlled but not randomized or double-blinded.

Is PRGN-2012 FDA approved?

PRGN-2012 is not FDA approved. It is an investigational drug currently in Phase 1 clinical trials. However, it has received FDA designations including Breakthrough Therapy, Orphan Drug, Accelerated Approval, and Priority Review, which are intended to expedite its development and review process.