NCT03123068

Brief Summary

This double-blind, placebo-controlled proof-of-concept clinical trial is intended to demonstrate that preemptive oral administration of cocoa flavanol for five days before surgery will attenuate the surgery-evoked increase of HMGB1 in blood plasma and NFkB signaling in innate immune cells shortly after surgery. A secondary aim is to capture preliminary patient-centered outcomes data and relate these outcomes to the intake of oral cocoa flavanol and surgery-evoked activation of the HMGB1-NFkB signaling axis. Participants will be randomized to receive either an over the counter supplement containing cocoa flavanols, or placebo, for 5 days before surgery.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
74

participants targeted

Target at P75+ for phase_1

Timeline
Completed

Started Apr 2017

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

April 17, 2017

Completed
1 day until next milestone

First Submitted

Initial submission to the registry

April 18, 2017

Completed
3 days until next milestone

First Posted

Study publicly available on registry

April 21, 2017

Completed
1.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 14, 2018

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 14, 2018

Completed
2.9 years until next milestone

Results Posted

Study results publicly available

November 17, 2021

Completed
Last Updated

October 13, 2022

Status Verified

September 1, 2022

Enrollment Period

1.7 years

First QC Date

April 18, 2017

Results QC Date

September 1, 2021

Last Update Submit

September 17, 2022

Conditions

Outcome Measures

Primary Outcomes (1)

  • NFkB Signaling in Innate Immune Cells

    Blood samples will be collected to measure possible attenuation of surgery-evoked increase in NFkB signaling in innate immune cells shortly after surgery at specified time points. Phosphorylation of functional markers (activity) was expressed as the arcsinh-transformed value of the median value. Changes in activity over time were captured by building the arcsinh ratio between the arcsinh-value obtained in samples collected at a given time with the arcsinh-value obtained in samples collected at baseline, i.e., before starting the intervention with CocoaVia. Results are reported for NFkB (p65).

    1 hour and 48 hours following surgery

Secondary Outcomes (5)

  • HMGB1 Level in Blood Plasma

    1 hour and 48 hours following surgery.

  • Step Count Per Minute as a Measure of Functional Recovery - Objective

    post-surgical observation period (6 weeks)

  • Days to Mild Impairment as a Measure of Functional Recovery - Subjective

    5 days before surgery though 6 weeks post op.

  • Days to Mild Pain as Assessed by WOMAC Pain Scores

    5 days before surgery though 6 weeks post op.

  • Days to Half Max Recovery From Fatigue

    5 days before surgery though 6 weeks post op.

Study Arms (2)

Active treatment group - Group A

ACTIVE COMPARATOR

Participants will receive a daily oral dose of 1,000 mg cocoa flavanol (CocoaVia®) for 5 days before surgery. The daily dose will consist of 8 capsules in divided doses throughout the day.

Drug: CocoaVia®

Placebo treatment group - Group B

PLACEBO COMPARATOR

Participants will receive a daily oral dose of a placebo for 5 days before surgery. The daily dose will consist of 8 capsules in divided doses throughout the day.

Other: Placebo

Interventions

CocoaVia® is manufactured by Mars, Inc. It is a dietary supplement of cocoa bean extract, containing 125 mg cocoa flavanols per capsule.

Also known as: Cocoa flavanol
Active treatment group - Group A
PlaceboOTHER

The placebo capsules will contain an inert ingredient packaged to be indistinguishable from the active treatment.

Placebo treatment group - Group B

Eligibility Criteria

Age18 Years - 90 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • years of age
  • Male or female
  • Planning to undergo total hip or knee arthroplasty, either primary or revision
  • Fluent in English
  • Willing and able to sign an informed consent form and HIPAA authorization and to comply with study procedures

You may not qualify if:

  • Infectious disease within the last month
  • Immune-suppressant therapy within the last 2 months (e.g., azathioprine or cyclosporine)
  • Chronic medication with potential immune-modulatory effects (e.g., daily oral morphine-equivalent intake \> 30 mg)
  • Major surgery within the last 3 months or minor surgery within the last month.
  • History of substance abuse (e.g., alcoholism, drug dependency)
  • Pregnancy
  • Autoimmune disease interfering with data interpretation (e.g. lupus)
  • Renal, hepatic, cardiovascular, or respiratory diseases resulting in clinically relevant impaired function
  • Active malignancy
  • Participation in another clinical trial of an investigational drug or device within the last month that, in the investigator's opinion, would create an increased risk to the participant or compromise the integrity of the study
  • Other conditions compromising a participant's safety or the integrity of the study
  • Allergy to active ingredient of CocoaVia®, the study intervention.
  • Frequent consumption of dark chocolate and flavanol containing foods (e.g. black tea, red wine, apples)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Stanford University Hospital

Stanford, California, 94305, United States

Location

Results Point of Contact

Title
Professor of Anesthesia
Organization
Stanford University

Study Officials

  • Martin S Angst, MD

    Stanford University

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
Placebo and active treatments will be formulated in identical capsules, and bottled and labeled with coded study numbers that will allow for all parties to remain blinded throughout the data collection phase.
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor of Anethesioloogy, Perioperative and Pain Medicine

Study Record Dates

First Submitted

April 18, 2017

First Posted

April 21, 2017

Study Start

April 17, 2017

Primary Completion

December 14, 2018

Study Completion

December 14, 2018

Last Updated

October 13, 2022

Results First Posted

November 17, 2021

Record last verified: 2022-09

Data Sharing

IPD Sharing
Will not share

Locations