A Dose Ranging Study to Examine TDS-Testosterone 5%
PARC-T-D
A Multiple-Dose, Single Period, Phase II Dose Ranging Study to Examine TDS-Testosterone 5% in Adult Male Subjects
3 other identifiers
interventional
48
1 country
1
Brief Summary
This study is a continuation of previous studies done in healthy volunteers to prove the efficacy of delivering Testosterone, the male hormone, rapidly across intact skin in s series of doses from low to high in men with low-to-no natural testosterone production to measure their response to the varying doses. The results of this study will inform further studies which will be longer in length, as to the starting doses. The study will be conducted in London, U.K. at the Advanced Therapies Centre, The London Clinic.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_2
Started Jun 2026
Shorter than P25 for phase_2
1 active site
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
First Submitted
Initial submission to the registry
July 3, 2013
CompletedFirst Posted
Study publicly available on registry
July 10, 2013
CompletedStudy Start
First participant enrolled
June 1, 2026
ExpectedPrimary Completion
Last participant's last visit for primary outcome
October 1, 2026
Study Completion
Last participant's last visit for all outcomes
February 1, 2027
September 3, 2025
September 1, 2025
4 months
July 3, 2013
September 2, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Dose Range Measure of serum levels of testosterone in response to varying doses
A pharmacokinetic measure of serum levels of testosterone in response to varying doses of from 10 to 70 mgs of Testosterone.
1 week
Secondary Outcomes (1)
Dermal Safety as measured by
1 Week
Study Arms (2)
Forearm dose
ACTIVE COMPARATORHalf of Ss will receive their dose of Testosterone on the inner aspects of their forearms.
Chest Dose
ACTIVE COMPARATORHalf of Ss will receive their dose of Testosterone on the chest.
Interventions
10,30,50 and 70 mg doses of micronized Testosterone delivered by means of a new liquid transdermal delivery solution, HypoSpray(R)once daily for 7 days or until halted due to systemic or dermal reactions.
A dose of product solution is delivered by means of a metered pump spray.
Eligibility Criteria
You may qualify if:
- Hypogonadal Male subjects - morning testosterone level ≤300 ng/dL (10.4 ng/L).
- and 75 years of age, inclusive.
- The subject is willing and able to read, understand the Subject Information Sheet and provide written informed consent.
- The subject has a body mass index (BMI) within 18-30 kg/m2.
- The subject is in otherwise good health as determined by medical history and physical examination.
- The subject is a non-smoker.
- The subject must agree to comply with the placement of an indwelling catheter on two separate occasions and the drawing of blood samples for the pharmacokinetic assessments.
- The subject is willing and able to comply with all testing and requirements defined in the protocol.
- The subject is willing and able to return to the study site for all visits.
You may not qualify if:
- The subject has any relevant deviations from normal in physical examination, electrocardiogram (ECG), or clinical laboratory tests, as evaluated by the investigator, particularly an elevated PSA reading \>4.0 ng/ml or ALT and AST greater than 2 times the upper limit of normal, clinically significant anemia (hematocrit \<35%) or renal dysfunction (creatinine \>2mg/dL), active deep vein thrombosis, thromboembolic disorders or history of these conditions.
- The subject has had a clinically significant illness within 30 days preceding entry into this study.
- The subject has a history of significant neurological, hepatic, renal, endocrine, cardiovascular, gastrointestinal, pulmonary, or metabolic disease.
- The subject has a known allergy or history of hypersensitivity to Testosterone or similar compounds.
- The subject has used any prescription medication within 14 days or over-the-counter (OTC) medication or alcohol within 48 hours of dosing or intends to use any prescription or OTC medication during the study that may interfere with the evaluation of study medication.
- The subject has donated or lost a significant volume of blood (\>450 mL) within four (4) weeks of the study, and their haemoglobin concentration and haematocrit have not returned to within 5% of normal.
- The subject has a Hematocrit level \> 51%
- The subject has a history of substance abuse or a current positive urine drug screen or urine alcohol test.
- Alcohol consumption greater than community norms (i.e. more than 21 standard drinks per week for males).
- Subjects who have received an investigational drug or have used an investigational device in the 30 days prior to study entry.
- Subjects with an American Urological Association System Index for Prostatism score greater than 7
- Subjects with a history of prostate or breast carcinoma.
- Subjects with prostatic mass on screening physical examination.
- Subjects with a history of significant skin disease.
- Subjects with a history of sleep apnea.
- +3 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Advanced Therapies Centre, The London Clinic
London, NW1 4LJ, United Kingdom
Related Publications (1)
Chik Z, Johnston A, Tucker AT, Chew SL, Michaels L, Alam CA. Pharmacokinetics of a new testosterone transdermal delivery system, TDS-testosterone in healthy males. Br J Clin Pharmacol. 2006 Mar;61(3):275-9. doi: 10.1111/j.1365-2125.2005.02542.x.
PMID: 16487220BACKGROUND
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Shern L. Chew, M.D., Ph.D.
Consultant Physician and Professor of Endocrine Medicine
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
July 3, 2013
First Posted
July 10, 2013
Study Start (Estimated)
June 1, 2026
Primary Completion (Estimated)
October 1, 2026
Study Completion (Estimated)
February 1, 2027
Last Updated
September 3, 2025
Record last verified: 2025-09
Data Sharing
- IPD Sharing
- Will not share