NCT02411318

Brief Summary

This study will determine how common lifestyle practices affect the behavior of neutrophils (a type of immune cell) at shorter time scales than previously possible.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
47

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Sep 2014

Longer than P75 for not_applicable

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

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 25, 2014

Completed
6 months until next milestone

First Submitted

Initial submission to the registry

March 25, 2015

Completed
14 days until next milestone

First Posted

Study publicly available on registry

April 8, 2015

Completed
4.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2019

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2019

Completed
Last Updated

December 17, 2020

Status Verified

March 1, 2020

Enrollment Period

5.3 years

First QC Date

March 25, 2015

Last Update Submit

December 15, 2020

Conditions

Outcome Measures

Primary Outcomes (5)

  • Change in Exercise-Related Neutrophil Chemotactic Velocity

    Participants will ride a stationary bike and maintain their target heart rate for 30 min. Blood samples via lancet will be collected at baseline, 30 min (immediately post intervention), and 60 min.

    baseline, 30 min, 60 min

  • Change in Caffeine-Related Neutrophil Chemotactic Velocity

    Participants will consume a moderate dose of caffeine via 200mg capsule. Blood samples via lancet will be collected at baseline, 30 min (immediately post intervention), and 60 min.

    baseline, 30 min, 60 min

  • Change in Ethanol-Related Neutrophil Chemotactic Velocity

    Participants will consume a weight-calculated dose of alcohol sufficient to increase their blood alcohol concentration (BAC) to 0.05. Blood samples via lancet will be collected at baseline, 1-3 hours (when BAC reached 0.05) and 1 hour after previous collection.

    baseline, 1-3 hours from baseline, up to 2-4 hours from baseline

  • Change in Glucose-Related Neutrophil Chemotactic Velocity

    Participants will consume 100g glucose tolerance drink within 5 minutes. Blood samples via lancet will be collected at baseline, 30 min (immediately post intervention), and 60 min.

    baseline, 30 min, 60 min

  • Change in Caffeine Plus Glucose-Related Neutrophil Chemotactic Velocity

    Participants will consume a moderate dose of caffeine via 200mg capsule and 100g of glucose tolerance drink within 5 min. Blood samples via lancet will be collected at baseline, 30 min (immediately post intervention), and 60 min.

    baseline, 30 min, 60 min

Secondary Outcomes (10)

  • Change in Exercise-Related Neutrophil Absolute Speed

    baseline, 30 min, 60 min

  • Change in Exercise-Related Neutrophil Chemotactic Index

    baseline, 30 min, 60 min

  • Change in Caffeine-Related Neutrophil Absolute Speed

    baseline, 30 min, 60 min

  • Change in Caffeine-Related Neutrophil Chemotactic Index

    baseline, 30 min, 60 min

  • Change in Ethanol-Related Neutrophil Absolute Speed

    baseline, 1-3 hours from baseline, up to 2-4 hours from baseline

  • +5 more secondary outcomes

Study Arms (5)

Cardiovascular Exercise

EXPERIMENTAL

Participants will ride a stationary bike and maintain their target heart rate (according to the American Heart Association guidelines) for 30 minutes. For example, a 30 year old will have a target heart rate zone of 95-162 beats per minute. A baseline blood sample will be acquired before the participant begins exercising. In the following 30 minutes, participants will ride the exercise bike, and their heart rate and general status will be assessed continuously. Specifically, heart rate will be monitored using a chest strap heart rate monitor. Two additional lancet punctures will be performed after the exercise to measure the changes in neutrophil function: one immediately following the 30 minute exercise period and one 30 minutes after the exercise has been completed.

Behavioral: Exercise

Caffeine Consumption

EXPERIMENTAL

Participants will be exposed to a moderate dose of caffeine (200 mg capsule in one sitting) from a common commercial product. After consent and screening, a baseline blood sample will be acquired using the lancet puncture procedure. The participant will then be instructed to swallow a 200 mg caffeine capsule. Two additional lancet punctures will be performed after the caffeine ingestion: one after 30 minutes post-ingestion and another one after 60 minutes.

Drug: ProLab 200mg caffeine capsule

Ethanol Ingestion

EXPERIMENTAL

Participants will be weighed and their required alcohol dose determined according to the equation used by the Madison Police Department during alcohol training workshops: 1 mL of 80 proof (40%) alcohol per pound of body weight. Participants will be permitted to consume the drink at their own pace, although no slower than one drink per hour. Breath Alcohol Concentration (BAC) will be tested 20 minutes after drinking has ceased in order to clear mouth alcohol that may affect the BAC reading. Participants at 0.05 BAC and above will have blood drawn via lancet puncture. In addition to the lancet puncture done once the alcohol level is reached, an additional lancet puncture will be performed 1 hour later.

Other: Ethanol ingestion

Glucose Ingestion

EXPERIMENTAL

After a baseline blood sample is acquired, participants will consume 100 grams of glucose within 5 minutes. Two additional lancet punctures will be performed after the glucose ingestion, one at 30 minutes post-ingestion, and one at 60 minutes post-ingestion.

Drug: Glucose Tolerance Drink

Glucose and Caffeine Ingestion

EXPERIMENTAL

After a baseline blood sample is acquired, participants will swallow 200mg of caffeine in capsule form and consume 100 grams of glucose within 5 minutes. Two additional lancet punctures will be performed after the caffeine and glucose ingestion, one at 30 minutes post-ingestion, and one at 60 minutes post-ingestion.

Drug: ProLab 200mg caffeine capsuleDrug: Glucose Tolerance Drink

Interventions

ExerciseBEHAVIORAL

Participants will ride a stationary bike and maintain their target heart rate (according to the American Heart Association guidelines) for 30 minutes.

Cardiovascular Exercise

Participants will swallow one ProLab caffeine 200mg tablet.

Caffeine ConsumptionGlucose and Caffeine Ingestion

Participants will consume a dose of 80 proof alcohol according to their body weight to reach a breath alcohol concentration of 0.05.

Ethanol Ingestion

Participants will consume 100 grams of glucose

Glucose IngestionGlucose and Caffeine Ingestion

Eligibility Criteria

Age21 Years - 60 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Capacity to provide informed consent and ability to speak and read English.
  • Male or female with no chronic or acute health concerns that might affect subject safety during the study or interfere with the study results

You may not qualify if:

  • In good physical health
  • Regularly exercise at least 30 minutes 3 times per week (exercise cohort)
  • Currently participating in another clinical trial
  • History of significant systemic disease (eg. cancer, infection, hematological, renal, hepatic, coronary artery disease or other cardiovascular disease, endocrinologic, neurologic, rheumatologic, or gastrointestinal disease)
  • Use of beta blockers or corticosteroids
  • Currently taking medications that are not recommended to be taken in conjunction with alcohol
  • Acute illness or evidence of clinically significant active infection
  • Currently receiving immunotherapy
  • Pregnant women
  • Ingested medication (e.g. systemic corticosteroids) within 48 hours preceding the draw that the researchers believe may have an effect on immune response or the immune system
  • Performed any activity that conflicts (eg. drinking any alcohol prior to the study), in the judgment of the investigator, with the external factor to be tested in the study (if any)
  • Alcoholic or other health conditions for which alcohol consumption is contraindicated
  • Consume more than 7 drinks per week (women alcohol cohort)
  • Consume more than 14 drinks per week (men alcohol cohort)
  • Consume more than three (8 oz.) servings of coffee, caffeinated soft drinks/tea (12 oz.) per day (caffeine cohort)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Wisconsin

Madison, Wisconsin, 53705, United States

Location

Related Publications (8)

  • Bagby GJ, Zhang P, Stoltz DA, Nelson S. Suppression of the granulocyte colony-stimulating factor response to Escherichia coli challenge by alcohol intoxication. Alcohol Clin Exp Res. 1998 Nov;22(8):1740-5.

    PMID: 9835289BACKGROUND
  • Bird MD, Zahs A, Deburghgraeve C, Ramirez L, Choudhry MA, Kovacs EJ. Decreased pulmonary inflammation following ethanol and burn injury in mice deficient in TLR4 but not TLR2 signaling. Alcohol Clin Exp Res. 2010 Oct;34(10):1733-41. doi: 10.1111/j.1530-0277.2010.01260.x. Epub 2010 Jul 1.

    PMID: 20608903BACKGROUND
  • Boe DM, Nelson S, Zhang P, Quinton L, Bagby GJ. Alcohol-induced suppression of lung chemokine production and the host defense response to Streptococcus pneumoniae. Alcohol Clin Exp Res. 2003 Nov;27(11):1838-45. doi: 10.1097/01.ALC.0000095634.82310.53.

    PMID: 14634502BACKGROUND
  • Boudjeltia KZ, Faraut B, Stenuit P, Esposito MJ, Dyzma M, Brohee D, Ducobu J, Vanhaeverbeek M, Kerkhofs M. Sleep restriction increases white blood cells, mainly neutrophil count, in young healthy men: a pilot study. Vasc Health Risk Manag. 2008;4(6):1467-70. doi: 10.2147/vhrm.s3934.

    PMID: 19337560BACKGROUND
  • Chimenti L, Morici G, Paterno A, Santagata R, Bonanno A, Profita M, Riccobono L, Bellia V, Bonsignore MR. Bronchial epithelial damage after a half-marathon in nonasthmatic amateur runners. Am J Physiol Lung Cell Mol Physiol. 2010 Jun;298(6):L857-62. doi: 10.1152/ajplung.00053.2010. Epub 2010 Apr 2.

    PMID: 20363849BACKGROUND
  • Horrigan LA, Kelly JP, Connor TJ. Caffeine suppresses TNF-alpha production via activation of the cyclic AMP/protein kinase A pathway. Int Immunopharmacol. 2004 Oct;4(10-11):1409-17. doi: 10.1016/j.intimp.2004.06.005.

    PMID: 15313438BACKGROUND
  • Sackmann EK, Berthier E, Young EW, Shelef MA, Wernimont SA, Huttenlocher A, Beebe DJ. Microfluidic kit-on-a-lid: a versatile platform for neutrophil chemotaxis assays. Blood. 2012 Oct 4;120(14):e45-53. doi: 10.1182/blood-2012-03-416453. Epub 2012 Aug 22.

    PMID: 22915642BACKGROUND
  • Sackmann EK, Berthier E, Schwantes EA, Fichtinger PS, Evans MD, Dziadzio LL, Huttenlocher A, Mathur SK, Beebe DJ. Characterizing asthma from a drop of blood using neutrophil chemotaxis. Proc Natl Acad Sci U S A. 2014 Apr 22;111(16):5813-8. doi: 10.1073/pnas.1324043111. Epub 2014 Apr 7.

    PMID: 24711384BACKGROUND

MeSH Terms

Interventions

ExerciseCaffeine

Intervention Hierarchy (Ancestors)

Motor ActivityMovementMusculoskeletal Physiological PhenomenaMusculoskeletal and Neural Physiological PhenomenaXanthinesAlkaloidsHeterocyclic CompoundsPurinonesPurinesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-Ring

Study Officials

  • David J Beebe, PhD

    University of Wisconsin, Madison

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
BASIC SCIENCE
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 25, 2015

First Posted

April 8, 2015

Study Start

September 25, 2014

Primary Completion

December 31, 2019

Study Completion

December 31, 2019

Last Updated

December 17, 2020

Record last verified: 2020-03

Locations