Renal Effects of Hormones/Biomarkers in Transgender PrEP Recipients

NCT ID: NCT04742816

Last Updated: 2022-03-03

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE4

Total Enrollment

42 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-09-17

Study Completion Date

2021-12-31

Brief Summary

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Will use a subset of the main study cohort of transgender or non-binary individuals to evaluate the relationships between self-reported exogenous hormone use, endogenous hormone values, renal biomarkers, drug levels and directly measured renal function.

Detailed Description

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This cross-sectional sub-study will use a subset of the main study cohort of transgender (TG) or non-binary (NB) individuals to evaluate the relationships between self-reported exogenous hormone use, endogenous hormone values (serum estradiol, estrone, free/total testosterone), renal biomarkers, drug levels (measured by tenofovir diphosphate, TFV-DP, and emtricitabine triphosphate, FTC-TP, on dried blood spot cards and urine) and directly measured renal function (iohexol clearance).

Conditions

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Transgender Renal Function Hormone Replacement Therapy

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

iohexol
Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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Iohexol injection

The research pharmacist will prepare the iohexol injection in a 1cc tuberculin syringe, consisting of 0.5cc sterile water for injection (SWFI) and 0.5cc iohexol (Omnipaque 300). The study coordinator/personnel (licensed RN) will inject the iohexol dose into the subcutaneous tissue on the opposite arm used for blood sampling; the time will be recorded. The participant will be monitored for adverse events 30 minutes post iohexol administration at the AVRC. If the participant has not had any adverse event within 30 minutes, they will be asked to leave the AVRC and return within 2 hours and 55 minutes post Iohexol injection for lab collection.

Group Type OTHER

IHX-CL measurements

Intervention Type DIAGNOSTIC_TEST

The distribution of measured IHX-CL values and other continuous variables will be assessed to ensure a parametric distribution.

Iohexol

Intervention Type DRUG

Iohexol clearance measurement

Interventions

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IHX-CL measurements

The distribution of measured IHX-CL values and other continuous variables will be assessed to ensure a parametric distribution.

Intervention Type DIAGNOSTIC_TEST

Iohexol

Iohexol clearance measurement

Intervention Type DRUG

Other Intervention Names

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OMNIPAQUE Iohexol OMNIPAQUE

Eligibility Criteria

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Inclusion Criteria

* HIV-uninfected
* Identifying as transgender or nonbinary (TG/NB)
* Age ≥ 18 years (adult)
* At risk of acquiring HIV
* Calculated creatinine clearance (CRCL) ≥ 60 mL/minute
* Taking emtricitabine/tenofovir alafenamide
* Willing to receive a small dose of iohexol
* Willing to provide 30 mL blood and a urine sample

Exclusion Criteria

* Allergy to iohexol
* Use of concurrent medications that may interfere with iohexol such as metformin, amiodarone or beta-blockers
* Anuric or unable to produce 30 mL of urine
* Other condition that, in the opinion of the investigator, would put the participant at risk, complicate interpretation of study outcome data, or would otherwise interfere with participation or achieving the study objectives
Minimum Eligible Age

18 Years

Maximum Eligible Age

100 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University of California, San Diego

OTHER

Sponsor Role lead

Responsible Party

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Nimish Patel

Assoc Prof Clinical

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Nimish Patel, PharmD

Role: PRINCIPAL_INVESTIGATOR

UC San Diego AntiViral Research Center (AVRC)

Locations

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UC San Diego AntiViral Research Center (AVRC)

San Diego, California, United States

Site Status

Countries

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United States

Other Identifiers

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CCTG 605s

Identifier Type: -

Identifier Source: org_study_id

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