NCT00504712

Brief Summary

There is increasing evidence of the linkage of type 2 diabetes with low testosterone levels in men.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
24

participants targeted

Target at below P25 for phase_4

Timeline
Completed

Started Feb 2006

Longer than P75 for phase_4

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

February 1, 2006

Completed
1.5 years until next milestone

First Submitted

Initial submission to the registry

July 19, 2007

Completed
1 day until next milestone

First Posted

Study publicly available on registry

July 20, 2007

Completed
2.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2009

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2009

Completed
12.5 years until next milestone

Results Posted

Study results publicly available

May 18, 2022

Completed
Last Updated

June 8, 2022

Status Verified

March 1, 2022

Enrollment Period

3.8 years

First QC Date

July 19, 2007

Results QC Date

June 30, 2021

Last Update Submit

May 18, 2022

Conditions

Keywords

TestosteroneHypogonadismDiabetesPVDRCT

Outcome Measures

Primary Outcomes (1)

  • Change in Arterial Stiffness

    The primary outcome was the effect of 12 weeks testosterone replacement on arterial stiffness measured by ultrasound derived stiffness parameter β of the femoral artery. A reduction in ultrasound derived stiffness parameter β is clinically beneficial to patients and the study was looking for a reduction in this value. Stiffness index β was calculated from the diastolic carotid artery diameter (Dd), systolic carotid artery diameter (Ds), diastolic blood pressure (BPd) and systolic blood pressure (BPs) using the formula; Stiffness index β = (ln(Ps/Pd)) x Dd/(Ds-Dd). A full theoretical range of possible index scores does not exist.

    Baseline, 12 weeks, and 26 weeks

Secondary Outcomes (1)

  • Change in IMT

    Baseline, 12 weeks, and 26 weeks

Study Arms (2)

Active

EXPERIMENTAL

Testosterone 200 mg intramuscular every 2 weeks

Drug: Testosterone

Placebo

PLACEBO COMPARATOR

Saline

Drug: saline

Interventions

Sustanon- 200mg- Intramuscular testosterone every 2 weeks

Active
salineDRUG

Saline injection every two weeks

Placebo

Eligibility Criteria

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

You may qualify if:

  • Type 2 diabetes mellitus.
  • Serum testosterone 12 nmol/L or less on two consecutive samples taken on different days and symptoms compatible with hypogonadism.
  • Peripheral vascular disease as defined by
  • previous diagnosis by a specialist vascular surgeon OR
  • ABPI less than 0.92 and ischaemic leg pain (claudication or rest pain) or distal complications (non-healing arterial foot ulcer or gangrene).
  • Agreement to maintain antihypertensive and antilipid treatments at prior doses during 3 month duration of study.
  • Ability to give written informed consent after verbal and written explanation in the English language.
  • Ability to comply with all study requirements.

You may not qualify if:

  • Current or previous breast cancer.
  • Current or previous prostate cancer.
  • Raised prostate specific antigen (PSA) or abnormal per rectal examination unless prostate cancer excluded after specialist urology opinion.
  • Severe symptoms of benign prostatic hypertrophy ('prostatism')
  • Treatment with testosterone in the 3 months prior to the trial.
  • Investigational drug treatment in the 3 months prior to the trial.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Barnsley Hospital NHS Foundation Trust

Barnsley, South Yorkshire, S75 2EP, United Kingdom

Location

MeSH Terms

Conditions

HypogonadismPeripheral Vascular DiseasesDiabetes Mellitus, Type 2Diabetes Mellitus

Interventions

TestosteroneSodium Chloride

Condition Hierarchy (Ancestors)

Gonadal DisordersEndocrine System DiseasesVascular DiseasesCardiovascular DiseasesGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic Diseases

Intervention Hierarchy (Ancestors)

AndrostenolsAndrostenesAndrostanesSteroidsFused-Ring CompoundsPolycyclic CompoundsTestosterone CongenersGonadal Steroid HormonesGonadal HormonesHormonesHormones, Hormone Substitutes, and Hormone AntagonistsChloridesHydrochloric AcidChlorine CompoundsInorganic ChemicalsSodium Compounds

Limitations and Caveats

It was more difficult than anticipated to recruit patients to the trial and despite extension of the trial beyond expected completion date the target recruitment was not achieved.

Results Point of Contact

Title
Professor TH Jones
Organization
Barnsley Hospital NHS Foundation Trust

Study Officials

  • Thomas H Jones

    Barnsley Hospital

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 19, 2007

First Posted

July 20, 2007

Study Start

February 1, 2006

Primary Completion

December 1, 2009

Study Completion

December 1, 2009

Last Updated

June 8, 2022

Results First Posted

May 18, 2022

Record last verified: 2022-03

Locations