Trial · NCT04445727
Efficacy of Vitamin C Supplement vs Spinal Manipulation to Treatment in Lateral Epicondylitis
NCT04445727, Not applicable, Unknown, Universidad Rey Juan Carlos
3 sourcestrials-2026-11-12-0.5.0
Cite this record
ConductScience Library. Efficacy of Vitamin C Supplement vs Spinal Manipulation to Treatment in Lateral Epicondylitis. Trials, record NCT04445727. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT04445727
On this page
Trial
As registered on ClinicalTrials.gov, in the graph's capture of the registry.
- Title
- Efficacy of Vitamin C Supplement vs Spinal Manipulation to Treatment in Lateral Epicondylitis
- NCT number
- NCT04445727
- Status
- Unknown
- Phases
- Not applicable
- Enrollment
- 130 participants, actual
- Lead sponsor
- Universidad Rey Juan Carlos
- Conditions
- Lateral Epicondylitis, Tennis Elbow
- Interventions
- Vitamin C, spinal manipulation, Transcutaneous electrical nerve stimulation (TENS)
- First posted
- 2020-06-24
- Last updated
- 2020-06-26
Source ClinicalTrials.gov
Registered outcomes4
Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.
| List | Outcome | Time frame | Description |
|---|---|---|---|
| Primary | Pain will be measured using an analog visual Scale | 6 weeks | For this, patients will be indicated how they should complete the scale, providing a numerical value from 0 to 10, being 10 0 no pain, and 10 the most severe or intense pain. The numerical pain scale is a simple, solid, sensitive and reproducible instrument, useful for reassessing patient pain |
| Secondary | Disabilities of the Arm, Shoulder and Hand Scale | 6 weeks | The questionnaire will consist of 30 questions about their symptoms and the ability to carry out certain activities and has been validated in Spanish. The patient should answer the questions by circling the number that best describes their condition during the past week. Each item will be answered on a scale from 1 to 5, where 1 indicates that it has no difficulty executing, has no symptoms or impact, and 5 indicates that it cannot be performed, that it has very severe symptoms and a strong impact. |
| Other | Global Rating of Change Scale | 6 weeks | The 15-point improvement self-perception scale (GROC) will be used, consisting of a 15-point Likert scale ranging from a rating of 0 to +7 (I am much better) or -7 (I am much worse). eleven The descriptors of improvement range from +1 to +7, and those of worsening from -1 to -7. A value of +5 has been shown to be indicative of moderate clinical improvement, while a value of +6 or +7 suggests high clinical improvement. |
| Other | Algometry | 6 weeks | Pressure pain threshold will be analyzed, defined as the minimum amount of pressure applied to produce pain |
Source ClinicalTrials.gov
Outcomes0
Each outcome the trial posted results for, in ClinicalTrials.gov's words.
None in this release.
Results by group0
Each measurement the trial posted, group by group, in the words and numbers it posted.
None in this release.
Participant flow0
How many started, completed or left each group, period by period.
None in this release.
Adverse events0
Each adverse event the trial posted, group by group: the participants affected out of those at risk.
None in this release.
Adverse event totals0
The totals the trial posted for each group.
None in this release.
Papers7
The papers the trial lists on ClinicalTrials.gov.
Grants0
The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.
None in this release.
Trial comparisons0
Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.
None in this release.
Tests0
The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.
None in this release.
Data dates
The day each source was copied for this release.
Sources 3
- ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
- ClinicalTrials.govNo license stated
- NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
- ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
- ClinicalTrials.govnone stated
- NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)
ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.
For software
Read this trial from software.
The record and each of its lists are JSON, twenty rows a page. No key.
GET https://conductscience.org/api/trials/v1/NCT04445727
GET https://conductscience.org/api/trials/v1/NCT04445727/registered