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Oligomeric Procyanidin Complex

Medical University of South Carolina · discontinued Small molecule ✓ Verified Jun 2026

Oligomeric Procyanidin Complex is a Botanical antioxidant, polyphenol Small molecule drug developed by Medical University of South Carolina. It is currently in discontinued development. Also known as: OPC.

Oligomeric procyanidins are plant-derived polyphenols that exert antioxidant and anti-inflammatory effects, potentially inhibiting advanced glycation end product formation.

Oligomeric Procyanidin Complex is a small molecule intervention studied in various conditions, including Lichen Planus, Prostate Cancer, and Preneoplastic Condition, as part of the RiteStart Supplement. It is a component of the RiteStart Personal Nutritional Dietary Study, which is an open-label trial examining the safety and efficacy of this supplement.

At a glance

Generic nameOligomeric Procyanidin Complex
Also known asOPC
SponsorMedical University of South Carolina
Drug classBotanical antioxidant, polyphenol
TargetAdvanced glycation end products (AGEs), free radicals, inflammatory mediators
ModalitySmall molecule
Therapeutic areaOncology
Phasediscontinued

Mechanism of action

Oligomeric procyanidins (OPCs) are naturally occurring flavonoid compounds found in plant sources such as grape seeds and pine bark. These molecules function primarily as antioxidants, neutralizing free radicals that contribute to cellular damage and aging. In the context of the discontinued Medical University of South Carolina program, OPC was hypothesized to interfere with the formation of advanced glycation end products (AGEs)—harmful compounds formed when glucose binds to proteins, a process implicated in diabetes complications, vascular disease, and cancer progression. The mechanism was thought to involve both direct antioxidant activity and modulation of inflammatory pathways, potentially explaining proposed benefits in energy metabolism and periodontal health. However, the limited clinical evidence and discontinuation of the program suggest that efficacy in human disease was not convincingly demonstrated.

Approved indications

No approved indications tracked.

Pipeline indications

Common side effects

No common side effects on file.

Key clinical trials

Primary sources

Every claim on this page is sourced from regulatory or scientific primary sources. See our editorial policy for full methodology.

SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

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Frequently asked questions about Oligomeric Procyanidin Complex

What is Oligomeric Procyanidin Complex?

Oligomeric Procyanidin Complex is a Botanical antioxidant, polyphenol drug developed by Medical University of South Carolina.

How does Oligomeric Procyanidin Complex work?

Oligomeric procyanidins are plant-derived polyphenols that exert antioxidant and anti-inflammatory effects, potentially inhibiting advanced glycation end product formation.

Who makes Oligomeric Procyanidin Complex?

Oligomeric Procyanidin Complex is developed by Medical University of South Carolina (see full Medical University of South Carolina pipeline at /company/medical-university-of-south-carolina).

Is Oligomeric Procyanidin Complex also known as anything else?

Oligomeric Procyanidin Complex is also known as OPC.

What drug class is Oligomeric Procyanidin Complex in?

Oligomeric Procyanidin Complex belongs to the Botanical antioxidant, polyphenol class. See all Botanical antioxidant, polyphenol drugs at /class/botanical-antioxidant-polyphenol.

What development phase is Oligomeric Procyanidin Complex in?

Oligomeric Procyanidin Complex is in discontinued.

What does Oligomeric Procyanidin Complex target?

Oligomeric Procyanidin Complex targets Advanced glycation end products (AGEs), free radicals, inflammatory mediators and is a Botanical antioxidant, polyphenol.

Related

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing