ClinicalTrials.Veeva

Menu

Effects of Exten(d) Supplementation on Training Ability in Recreational Runners

N

Natural Origins

Status and phase

Completed
Phase 2

Conditions

Joint Pain
Knee Inflammation
Biomechanical; Lesion

Treatments

Dietary Supplement: Polyherbal Exten(d) vs Placebo

Study type

Interventional

Funder types

Other
Industry

Identifiers

NCT04150211
Nat.Origins-Exten(d)-2019

Details and patient eligibility

About

The study will assess running biomechanics and joint inflammation of physically active males between 40 and 60 years of age, mainly runners, suffering from knee joint inflammation and pain after training. Participants were split into two groups, intervention and placebo, to evaluate the safety and efficacy of Exten(d) supplementation during 4 weeks.

Full description

Triple-blind, randomized, placebo-controlled, parallel group, pilot safety, and efficacy study.

30 healthy physically active males (40 to 60 years old) suffering from knee joint inflammation and pain after training were randomly assigned to the Exten(d) or Placebo group. During the first visit and after 4 weeks supplementation (either 2 g daily of Exten(d) capsules or placebo capsules) the participants were subjected to a three-stage exercise session: (i) running biomechanical assessment, (ii) exercise physiology maximal effort test and (iii) running biomechanical assessment after the incremental exercise to exhaustion. The volunteers have been assessed to determine: (1) inflammation by I-R thermography and pain perception, (2) running technics though biomechanic analysis and (3) performance.

Enrollment

33 patients

Sex

Male

Ages

40 to 60 years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

  • Male recreational runners who run for at least 150 minutes per week divided into two or more sessions.
  • The participants were expected to describe some degree of knee inflammation and/or discomfort after training in order to be accepted. Knee discomfort was considered significant whenever a subject referred to a punctuation of ≥ 2 in a Visual Analogue Scale (VAS).
  • Agree not to initiate any new exercise or diet programs during the entire study period
  • Agree not to change their current diet or exercise program during the entire study period
  • Agree not to stretch, utilize ice massage, take anti-inflammatory medications (eg, aspirin, ibuprofen), or use any other treatment during the trial.

Exclusion criteria

  • Use of anti-inflammatory medications or pain medications 1 week before the screening visit and during the study
  • Daily use of dietary supplements and herbal supplements beginning at the screening visit and during the study
  • Antibiotic use in the past 3 months
  • Chronic disease

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

Triple Blind

33 participants in 2 patient groups, including a placebo group

Exten(d)
Active Comparator group
Description:
Subjects have to take Exten(d) capsules (3 times a day, total 2 g/day) during breakfast, lunch and diner, during 4 weeks.
Treatment:
Dietary Supplement: Polyherbal Exten(d) vs Placebo
Placebo
Placebo Comparator group
Description:
Subjects have to take Placebo capsules (3 times a day, total 2 g/day) during breakfast, lunch and diner, during 4 weeks.
Treatment:
Dietary Supplement: Polyherbal Exten(d) vs Placebo

Trial contacts and locations

1

Loading...

Data sourced from clinicaltrials.gov

Clinical trials

Find clinical trialsTrials by location
© Copyright 2026 Veeva Systems