ADVIA CENTAUR TESTOSTERONE (TSTO)
K133491 · Siemens Healthcare Diagnostics, Inc. · CDZ · Feb 21, 2014 · Clinical Chemistry
Device Facts
| Record ID | K133491 |
| Device Name | ADVIA CENTAUR TESTOSTERONE (TSTO) |
| Applicant | Siemens Healthcare Diagnostics, Inc. |
| Product Code | CDZ · Clinical Chemistry |
| Decision Date | Feb 21, 2014 |
| Decision | SESE |
| Submission Type | Traditional |
| Regulation | 21 CFR 862.1680 |
| Device Class | Class 1 |
Intended Use
For in vitro diagnostic use in the quantitative determination of total testosterone (bound and unbound) in serum using the ADVIA Centaur and ADVIA Centaur XP systems. Measurements of testosterone are used in the diagnosis and treatment of disorders involving the male sex hormones (androgens), including primary and secondary hypogonadism, delayed or precocious puberty, impotence in males and, in females, hirsutism (excessive hair) and virilization (masculinization) due to tumors, polycystic ovaries, and adrenogenital syndromes.
Device Story
ADVIA Centaur TSTO is an in vitro diagnostic assay for quantitative measurement of total testosterone in serum. It utilizes competitive immunoassay with direct chemiluminescent technology. Input is a 15 µL serum sample; processed on ADVIA Centaur or ADVIA Centaur XP systems. The assay uses acridinium ester-labeled testosterone (tracer) and polyclonal rabbit anti-testosterone antibody coupled to paramagnetic particles (solid phase). The system measures chemiluminescence to determine testosterone concentration. Used in clinical laboratories by trained personnel. Output is a quantitative testosterone value (ng/dL), aiding clinicians in diagnosing and monitoring androgen-related endocrine disorders. This submission qualifies a new polyclonal rabbit anti-testosterone antibody pool.
Clinical Evidence
No clinical studies performed. Bench testing only. Precision study (20-day, 80 replicates) showed total CVs 6.8-13.3%. Linearity verified across 10-1500 ng/dL range (recovery 90-110%). Method comparison with 120 samples yielded r=0.994. LoB 3 ng/dL; LoD 10 ng/dL. Interference and cross-reactivity testing confirmed performance within specifications.
Technological Characteristics
Competitive chemiluminescent immunoassay. Components: acridinium ester-labeled testosterone, polyclonal rabbit anti-testosterone antibody on paramagnetic particles, releasing agent. Serum sample type. Measuring range 10-1500 ng/dL. Instrument-based (ADVIA Centaur/XP). Standards: CLSI EP05-A2, EP06-A, EP07-A2, EP17-A2, EP28-A3c, ISO 14971.
Indications for Use
Indicated for quantitative determination of total testosterone in serum for diagnosis and treatment of androgen-related disorders in males (hypogonadism, puberty disorders, impotence) and females (hirsutism, virilization due to tumors, polycystic ovaries, adrenogenital syndromes).
Regulatory Classification
Identification
A testosterone test system is a device intended to measure testosterone (a male sex hormone) in serum, plasma, and urine. Measurement of testosterone are used in the diagnosis and treatment of disorders involving the male sex hormones (androgens), including primary and secondary hypogonadism, delayed or precocious puberty, impotence in males and, in females hirsutism (excessive hair) and virilization (masculinization) due to tumors, polycystic ovaries, and adrenogenital syndromes.
Predicate Devices
- ADVIA Centaur Testosterone (TSTO) assay (k934562)
Related Devices
- K151986 — ADVA Centaur Testosterone II (TSTII), ADVA Centaur Testosterone II (TSTII) Master Curve Material, ADVIA Centaur SHBG, ADVIA Centaur SHBG Calibrator, ADVIA Centaur SHBG Master Curve Material · Siemens Healthcare Diagnostics, Inc. · Jun 29, 2016
- K223405 — Access Testosterone · Beckman Coulter, Inc. · Jan 13, 2023
- K122793 — LIAISON TESTOSTERONE; LIAISON TESTOSTERONE CONTROL SET · DiaSorin, Inc. · Jan 25, 2013
- K032881 — IMMULITE/IMMULITE 1000 TOTAL TESTOSTERONE AND IMMULITE 2000 TOTAL TESTOSTERONE · Diagnostic Products Corp. · Oct 10, 2003
- K021972 — FASTPACK TOTAL TESTOSTERONE IMMUNOASSAY · Qualigen, Inc. · Aug 21, 2002
Submission Summary (Full Text)
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# 510(k) Summary of Safety and Effectiveness
FEB 2 1 2014 This 510(k) Summary of Safety and Effectiveness is being submitted in accordance with the requirements of 21 CFR 807.92 and the Safe Medical Device Act of 1990.
The assigned 510(k) Number is: k133491
#### 1. Date Prepared
February 19, 2014
#### 2. Applicant Information
| Contact: | Matthew Gee, M.Sc.<br>Senior Manager, Regulatory Affairs |
|----------|----------------------------------------------------------------------------------------|
| Address: | Siemens Healthcare Diagnostics Inc.<br>511 Benedict Avenue<br>Tarrytown, NY 10591-5097 |
| Phone: | 914-524-2099 |
| Fax: | 914-524-3579 |
| Email: | matthew.gee@siemens.com |
#### Regulatory Information 3.
### Table 1. Regulatory Information for ADVIA Centaur TSTO Assay
| Trade Name | ADVIA Centaur® Testosterone (TSTO) |
|---------------------|---------------------------------------------------------|
| Model Numbers | 05476206 (5-pack); 07207660 (1-pack) |
| Common Name | Radioimmunoassay, testosterones and dihydrotestosterone |
| Classification Name | Testosterone test system |
| FDA Classification | Class I (Reserved) |
| Review Panel | Clinical Chemistry (75) |
| Product Code | CDZ |
| Regulation Number | 862.1680 |
#### 4. Predicate Device Information
Predicate Device Name: ADVIA Centaur Testosterone (TSTO) assay
510(k) Number: k934562
#### 5. Intended Use / Indications for Use
For in vitro diagnostic use in the quantitative determination of total testosterone (bound and unbound) in serum using the ADVIA Centaur and ADVIA Centaur XP systems.
Measurements of testosterone are used in the diagnosis and treatment of disorders involving the male sex hormones (androgens), including primary and secondary hypogonadism, delayed or precocious puberty, impotence in males and, in females, hirsutism (excessive hair) and virilization (masculinization) due to tumors, polycystic ovaries, and adrenogenital syndromes.
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#### Device Description 6.
The ADVIA Centaur TSTO assay consists of the following:
## Table 2. Summary of Ingredients of the ADVIA Centaur TSTO Assay Components
| Component | Volume | Ingredients |
|------------------------------------------------|--------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| ADVIA Centaur TSTO Primary Reagent ReadyPack | | |
| ADVIA Centaur TSTO<br>Lite Reagent | 2.5 mL/pack | acridinium ester-labeled testosterone in buffered<br>saline with preservatives |
| ADVIA Centaur TSTO<br>Solid Phase | 15.0 mL/pack | polyclonal rabbit antitestosterone antibody bound to<br>monoclonal mouse antirabbit antibody covalently<br>coupled to paramagnetic particles in buffered saline<br>with sodium azide (0.1%) and preservatives |
| Probe Wash | 10.0 mL/pack | buffered saline with sodium azide (0.1%) and<br>preservatives |
| ADVIA Centaur TSTO Ancillary Reagent ReadyPack | | |
| ADVIA Centaur TSTO<br>Releasing Agent | 5.0 mL/pack | steroid releasing agent (~0.1 µg/mL) in buffered saline<br>with sodium azide (0.1%) and preservatives |
| Cal E Low and High<br>Calibrators | 2.0 mL/vial | (After reconstitution) low or high levels of cortisol,<br>progesterone and testosterone in human plasma with<br>sodium azide (0.1%) and preservatives |
#### 7. Purpose of the Submission
The purpose of this submission is to submit a modification to the ADVIA Centaur TSTO assay. The modification to the assay is due to the qualification of a new polyclonal rabbit anti-testosterone pool.
#### Comparison of Predicate Device and Modified Device 8.
The following table provides a comparison between the predicate ADVIA Centaur TSTO assay (with the current polyclonal antibody pool) and the modified ADVIA Centaur TSTO assay with a Solid Phase antibody derived from a newly-qualified polyclonal antibody pool.
| ltem | Predicate Device<br>(Current Polyclonal Ab Pool for<br>Solid Phase Antibody) | Modified Device<br>(New Polyclonal Ab Pool for<br>Solid Phase Antibody) |
|----------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------|
| Intended Use | For in vitro diagnostic use in the<br>quantitative determination of total<br>testosterone (bound and unbound)<br>in serum using the ADVIA Centaur<br>and ADVIA Centaur XP Systems. | Same |
| Instrument Platforms | ADVIA Centaur<br>ADVIA Centaur XP | Same |
| Methodology | Competitive immunoassay using<br>direct chemiluminescent technology | Same |
## Table 3. Comparison of Modified ADVIA Centaur TSTO Assay to Predicate
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| ltem | Predicate Device<br>(Current Polyclonal Ab Pool for<br>Solid Phase Antibody) | Modified Device<br>(New Polyclonal Ab Pool for<br>Solid Phase Antibody) | |
|----------------------------------------------------------|------------------------------------------------------------------------------|-------------------------------------------------------------------------|--|
| Capture Antibody<br>(Solid Phase) | Polyclonal rabbit<br>anti-testosterone antibody | Same | |
| Tracer<br>(Lite Reagent) | Acridinium ester-labeled<br>testosterone | Same | |
| Specimen Type | Serum | Same | |
| Sample Volume | 15 ul | Same | |
| Measuring Range | 10-1500 ng/dL (0.35-52.1 nmol/L) | Same | |
| Calibration<br>2-point calibration<br>using Calibrator E | | Same | |
# Table 3. Comparison of Modified ADVIA Centaur TSTO Assay to Predicate
#### Standard/Guidance Document References 9.
The following recognized standards from Clinical Laboratory Standards Institute (CLSI) were used as a basis of the study procedures described in this submission:
- Evaluation of Precision Performance of Quantitative Measurement Methods; . Approved Guideline - Second Edition (CLSI EP05-A2, 2004; Recognition Number 7-110)
- Evaluation of the Linearity of Quantitative Measurement Procedures: A Statistical l Approach; Approved Guideline (CLSI EP06-A, 2003; Recognition Number 7-193)
- . Interference Testing in Clinical Chemistry; Approved Guideline - Second Edition (CLSI EP07-A2, 2005; Recognition Number 7-127)
- . Evaluation of Detection Capability for Clinical Laboratory Measurement Procedures; Approved Guideline -- Second Edition (CLSI EP17-A2, 2013; Recognition Number 7-233)
- . Defining, Establishing and Verifying Reference Intervals in the Clinical Laboratory: Approved Guideline - Third Edition (CLS) EP28-A3c - formerly C28-A3c, 2010; Recognition Number 7-224)
- 트 Medical devices - Application of risk management to medical devices (ANSI/AAMI/ISO 14971:2007/(R)2010; Recognition Number 5-70)
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#### Performance Characteristics 10.
#### 10.1 Precision
A 20-day precision study was performed according to CLSI EP5-A2. Samples included human specimen pools, three levels of controls and one in-house serum control. Each sample was assayed in 2 replicates per run, 2 runs per day for 20 days for a total of 80 replicates. Results from a representative lot are presented below.
| Sample | Mean (ng/mL) | Within-Run CV | Total CV |
|-----------------|--------------|---------------|----------|
| Patient Pool 1 | 57.8 | 8.7 | 13.3 |
| Patient Pool 2 | 211 | 4.0 | 7.9 |
| Patient Pool 3 | 336 | 4.5 | 7.4 |
| Patient Pool 4 | 574 | 5.5 | 7.1 |
| Patient Pool 5 | 1096 | 5.1 | 8.5 |
| Control Level 1 | 128 | 6.1 | 6.8 |
| Control Level 2 | 487 | 5.6 | 8.3 |
| Control Level 3 | 876 | 4.4 | 7.5 |
| Serum Control | 1167 | 5.7 | 9.1 |
#### 10.2 Linearity
A linearity study was performed using the modified device according to CLSI EP06-A using 9 serially diluted samples spanning the assay range. The samples were assayed in triplicate and the mean of triplicate results was used for the analyses. As presented below, the mean recovery was between 90% and 110% and the bias from the linear fit estimate was <10%.
| Sample | Expected<br>(ng/dL) | Observed<br>(ng/dL) | Recovery | Weighted<br>Linear Fit<br>Estimate | Bias |
|--------|---------------------|---------------------|----------|------------------------------------|-------|
| A | 1529.7 | 1529.7 | 100.0% | 1514.4 | 1.0% |
| B | 1141.8 | 1148.0 | 99.5% | 1136.6 | 0.5% |
| C | 781.2 | 766.4 | 101.9% | 758.8 | 3.0% |
| D | 347.2 | 384.8 | 90.2% | 381.0 | -8.9% |
| E | 178.6 | 194.0 | 92.1% | 192.1 | -7.0% |
| F | 98.9 | 98.6 | 100.3% | 97.7 | 1.2% |
| G | 53.8 | 50.9 | 105.7% | 50.4 | 6.6% |
| H | 27.5 | 27.0 | 101.8% | 26.8 | 2.6% |
| I | 3.2 | 3.2 | 100.0% | 3.2 | -0.9% |
The weighted linear regression equation is presented below.
Observed = 0.99(Expected) + 0.06 ng/dL (r = 0.999)
#### 10.3 Method Comparison
A method comparison study was performed by comparing the modified device to the currently-marketed predicate device (unmodified ADVIA Centaur TSTO assay) with 120 serum samples distributed over the assay range. The analysis was performed using Deming (Orthagonal) regression. The regression equation from the analysis is presented below.
Modified Device = 0.970(Unmodified Device) + 7.5 ng/dL (r = 0.994)
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#### 10.4 Matrix Comparison
Not applicable. Serum is the only claimed sample type for the assay.
#### 10.5 Reference Intervals
Reference intervals ADVIA Centaur TSTO assay were established using the predicate device. The Package Insert claims the following expected values for adult males and females:
Males: 241 to 827 ng/dL
Females: 14 to 76 ng/dL
A reference interval verification study was performed with the modified device according to CLSI EP28-A3c. Results of serum samples from 20 female and 20 male apparently healthy donors tested with the modified device were compared to the published claims in the Package Insert of the currently-marketed predicate device (unmodified ADVIA Centaur TSTO assay). For the male reference interval verification study, 19 specimens were within the range of 241 to 827 ng/dL (1 specimen was below range). For the female reference interval verification study, 18 specimens were within the range of 14 to 76 ng/dL (2 specimens were above range). These results demonstrate that the existing reference intervals for the unmodified predicate device are also applicable to the modified device.
#### 10.6 Detection Limit
The estimations of the Limit of Blank (LoB) and Limit of Detection were performed according to CLSI guideline EP17-A2. Limit of Blank (LoB) is the highest value expected in a series of results on a sample that contains no analyte. The LoB for the modified ADVIA Chemistry TSTO assay is 3 ng/dL. The Limit of Detection (LoD) is the smallest amount that the assay can reliably detect to determine presence or absence of an analyte. The LoD for the modified ADVIA Chemistry TSTO assay is 10 ng/dL.
#### 10.7 Endogenous Interference
Endogenous interference studies were performed according to CLSI EP07-A2. Two sample pools were tested. One sample pool had approximately 90 to 110 ng/dL testosterone. The second sample pool had approximately 360 to 440 ng/dL testosterone. These sample pools were spiked with potential interferents. Control samples were prepared by spiking sample pools with the appropriate diluent at the same volume as the interfering substance stock. Samples were tested in replicates of three (3) using the modified device. Results are presented below.
| Endogenous Substance | Dose Without<br>Endogenous<br>Substance<br>(ng/dL) | Dose With<br>Endogenous<br>Substance<br>(ng/dL) | % Interference |
|-----------------------------------|----------------------------------------------------|-------------------------------------------------|----------------|
| Hemoglobin (500 mg/dL) | 223 | 230 | 3.14 |
| Triglycerides (1000 mg/dL) | 218 | 216 | -0.92 |
| Conjugated Bilirubin (20 mg/dL) | 223 | 228 | 2.24 |
| Unconjugated Bilirubin (20 mg/dL) | 211 | 218 | 3.32 |
#### 10.8 Cross-Reactivity
Potential cross-reactants were spiked into one low sample (~ 90-110 ng/dL testosterone) and into one sample consisting only of Multi-Diluent 3 (~ 0 ng/dL). Testing was performed using the modified device in replicates of 6 per sample. Results are presented below.
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| Cross-Reactant | Cross<br>Reactant Conc.<br>ng/dL | Multi-diluent 3 | | Test Sample | |
|-----------------------|----------------------------------|-----------------|---------------------------|------------------|---------------------------|
| | | (ng/dL) | % Cross<br>Reactivity (%) | (ng/dL) | % Cross<br>Reactivity (%) |
| 5a-dihydrotestoterone | 10000<br>0 | 522.38<br>1.13 | 5.21 | 579.62<br>94.97 | 4.85 |
| Androstenedione | 10000<br>0 | 1.26<br>3.29 | -0.02 | 108.39<br>102.54 | 0.06 |
| Methyltestosterone | 10000<br>0 | 13.90<br>0.00 | 0.14 | 129.58<br>90.95 | 0.39 |
| Estradiol-17β | 10000<br>0 | 0.21<br>0.29 | 0.00 | 89.62<br>91.34 | 0.00 |
| Androsterone | 100000<br>0 | 9.41<br>1.64 | 0.01 | 106.72<br>98.36 | 0.01 |
| Cortisol | 100000<br>0 | 18.72<br>13.46 | 0.01 | 102.48<br>97.08 | 0.01 |
| Corticosterone | 100000<br>0 | 4.25<br>1.42 | 0.00 | 103.54<br>101.10 | 0.00 |
| Cyproterone | 10000<br>0 | 16.10<br>14.16 | 0.00 | 98.57<br>103.26 | 0.00 |
| Danazol | 100000<br>0 | 43.07<br>0.46 | 0.04 | 160.63<br>92.76 | 0.07 |
| DHEA-sulfate | 100000<br>0 | 0.00<br>0.00 | 0.00 | 98.69<br>105.85 | -0.01 |
| 11-deoxycortisol | 100000<br>0 | 1.12<br>0.70 | 0.00 | 103.13<br>93.33 | 0.01 |
| Dexamethasone | 100000<br>0 | 0.60<br>0.00 | 0.00 | 94.17<br>97.98 | 0.00 |
| Estrone | 10000<br>0 | 2.16<br>0.00 | 0.02 | 89.47<br>96.58 | -0.01 |
| Oxymetholone | 10000<br>0 | 15.45<br>16.15 | -0.01 | 104.59<br>103.28 | 0.01 |
| Progesterone | 100000<br>0 | 92.74<br>2.23 | 0.09 | 188.82<br>101.45 | 0.09 |
# 510(k) Summary of Safety and Effectiveness
#### 10.9 Stability
The onboard stability of the ADVIA Centaur TSTO reagents is 14 days with a calibration interval of 7 days. The reagents are stable until the date printed on the box label when stored at 2-8°C.
#### Clinical Studies 10.10
Not applicable.
#### Clinical Cut-off 10.11
Not applicable.
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#### 11. Conclusions
Based on the results of comparative testing, the modified ADVIA Centaur TSTO assay is substantially equivalent in principle and performance to the currently-marketed predicate device, the ADVIA Centaur TSTO assay, cleared under 510(k) k934562.
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### DEPARTMENT OF HEALTH & HUMAN SERVICES
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Public Health Service
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
SIEMENS HEALTHCARE DIAGNOSTICS INC. MATTHEW GEE SENIOR MANAGER, REGULATORY AFFAIRS 511 BENEDICT AVENUE TARRYTOWN NY 10591-5097
February 21, 2014
Re: K133491
Trade/Device Name: ADVIA Centaur Testosterone (TSTO) Regulation Number: 21 CFR 862.1680 Regulation Name: Testosterone test system Regulatory Class: I, reserved Product Code: CDZ Dated: December 18, 2013 Received: January 7, 2014
Dear Mr. Gec:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Parts 801 and 809); medical device reporting (reporting of medical device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
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Page 2—Mr. Gee
If you desire specific advice for your device on our labeling regulations (21 CFR Parts 801 and 809), please contact the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638 2041 or (301) 796-7100 or at its Internet address http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to
http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/Resourcesfor You/Industry/default.htm.
Sincerely yours,
# Ruth A. Chesler -S
for
Courtney H. Lias, Ph.D. Director Division of Chemistry and Toxicology Devices Office of In Vitro Diagnostics and Radiological Health Center for Devices and Radiological Health
Enclosure
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DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration
## Indications for Use
510(k) Number (if known) k133491
Device Name ADVIA Centaur Testosterone (TSTO)
Indications for Use (Describe)
For in vitro diagnostic use in the quantiation of total testosterone (bound and unbound) in serum using the ADVIA Centaur and ADVIA Centaur XP Systems.
Measurements of testosterone are used in the diagnosis and treatment of disorders involving the male sex inomones (androgens), including primary and secondary hypogonadism, delayed or precocious puberty, impotence in males and, in females, hirsutism (excessive hair) and virilization (masculinization) due to tumors, polycystic ovaries, and adrenogenital syndromes.
Type of Use (Select one or both, as applicable)
[x] Prescription Use (Part 21 CFR 801 Subpart D)
Over-The-Counter Use (21 CFR 801 Subpart C)
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Form Approved: OMB No. 0910-0120 Expiration Date: January 31, 2017 See PRA Statement on last page.