Observation of Environment and Reproductive-Endocrine Effects
OBServation of Environment and ReproductiVe Endocrine Effects Study (OBSERVE Study)
2 other identifiers
observational
300
1 country
1
Brief Summary
Background: Endocrine disorders occur when the glands that make hormones do not work properly. Hormones levels that are too high or too low can cause problems such as late or early puberty, irregular periods, and infertility. Environmental factors - including pollution; chemical exposure at home and work; foods; medicines; and sleep habits - may cause problems with the endocrine and reproductive systems. Objective: To learn how environmental factors may affect the endocrine and reproductive systems. Eligibility: Males or females, referring to sex assigned at birth, aged 8 years and older; they must have hypogonadism, infertility, or other reproductive disorders. Design: Adult participants will have 4 to 5 visits in 5 years. Children may have up to 12 visits; they may remain in the study up to the age of 23. Most visits will be less than 3 hours. Participants will be screened. They will have a physical exam. They will have blood and urine tests. They will complete questionnaires; they will answer questions about their diet, health, and other topics. Some may be referred for additional tests, such as imaging scans and semen analysis. Specific tests conducted during study visits will vary, depending on the participant s diagnosis. In addition to repeated blood and urine tests, these may include: Body composition measure: Participants will sit in a pod-shaped machine for about 6 minutes. The machines measures the air inside the capsule to record body fat and breathing volume. Resting energy expenditure test: Participants will lie down with a clear dome placed over their head. They will breathe quietly for 30 minutes. This test measures the number of calories their body burns at rest. ...
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Jul 2024
Longer than P75 for all trials
1 active site
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
First Submitted
Initial submission to the registry
February 24, 2024
CompletedFirst Posted
Study publicly available on registry
February 28, 2024
CompletedStudy Start
First participant enrolled
July 1, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 28, 2039
ExpectedStudy Completion
Last participant's last visit for all outcomes
March 31, 2039
December 23, 2025
December 19, 2025
14.7 years
February 24, 2024
December 20, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Investigate the relationship between environment, lifestyle, and reproductive neuroendocrinology.
We will analyze the correlation between internal exposures, and the longitudinal evolution of endocrine disorders. For instance, changes in PSQI (sleep) and DSM-5 (mood) questionnaire scores, research analytes and hormone metrics with treatment.
at baseline and after clinical care for the underlying condition
Secondary Outcomes (3)
the relationship between nutrition, diet and reproduction
at baseline and after clinical care for the underlying condition
the impact of stress on reproductive dysfunction
at baseline and after clinical care for the underlying condition
the influence of behavioral and psychological factors on reproductive function
at baseline and after clinical care for the underlying condition
Study Arms (9)
Androgen Excess States
Polycystic Ovary Syndrome (PCOS);Women who meet criteria for PCOS based on NIH/ Rotterdam or other clinical criteria
Congenital Adrenal Hyperplasia / Hyperandrogenism
Women who exhibit evidence of hyperandrogenism not related to Polycystic Ovarian Syndrome (PCOS); Nonclassic Congenital Adrenal Hyperplasia, Extreme hyperinsulism, Idiopathic etc.
Exhibiting signs of a diagnosis of hypogonadism
for example: Bosma arrhinia microphthalmia syndrome (BAMS)
Hypogonadism / Infertility
Isolated hypogonadotropic hypogonadism
Hypothalamic Amenorrhea (HA) (female) Functional Hypogonadism (male)
Participants who experience secondary or primary amenorrhea, or male hypogonadism, in the setting of negative energy balance such dieting, eating disorders or exercise training
Miscellaneous
Reproductive disorders not related to the above categories. (e.g., secondary to endocrine dysfunction, thyroid disorders, Cushing syndrome, pharmacotherapy, etc.)
Precocious or Delayed Puberty
Participants who display clinical evidence of delayed or precocious puberty based on standard criteria.
Premature Ovarian InsufficiencyPerimenopause or post-menopausal states
Women who attain menopause before age 40 years (or as defined by clinical criteria). Perimenopausal women are those typically above age 40 years and experience secondary amenorrhea/ oligomenorrhea.
Weight *Overweight/Underweight
BMI below or above reference standard (Adult Reference: Asians/ Asian Americans- 18.5-22.9 kg/m2; Other races- 18.5-24.9 kg/m2\*Participants may simultaneously belong to cohort of weight and any other cohort.
Eligibility Criteria
Adult and pediatric (between the ages of 8 and 18), cisgender male and females, from the communities and surrounding areas of Durham, Chapel Hill and Raleigh in NC; and Bethesda, MD.
You may qualify if:
- In order to be eligible to participate in this study, an individual must meet all of the following criteria:
- Male or female, referring to sex assigned at birth (cis gender)
- Age \> 8 years and weight \>= 12 kg
- A diagnosis of hypogonadism, infertility or other reproductive dysfunction
- Some specific diagnoses (as defined in standard guidelines) will include:
- Male or female hypogonadism
- Obesity/metabolic syndrome related to hypogonadism.
- Other reproductive dysfunction (e.g., secondary to endocrine dysfunction, thyroid disorders, Cushing syndrome, pharmacotherapy, etc.)
- Premature Ovarian Insufficiency
- Isolated hypogonadotropic hypogonadism
- Polycystic Ovarian Syndrome
- Delayed Puberty
- Precocious puberty
- Perimenopause and post-menopausal states
- Androgen Excess States (Nonclassic Congenital Adrenal Hyperplasia, Extreme hyperinsulism, Idiopathic etc.)
- +2 more criteria
You may not qualify if:
- An individual who meets any of the following criteria will be excluded from participation in this study:
- Inability to follow up with the research study and/or perform study procedures, at the discretion of the PI or AI.
- Pregnant participants, less than 18 years of age, for their safety, since there is not a trained doctor on the study to give proper medical care to pregnant individuals less than 18 years of age.
- Individuals who do not meet the criteria for participation in this study (screen failure) because of an acute, reversible or transient medical reason may be rescreened upon reversal, improvement or stabilization of their clinical status. Participants who develop an acute, reversible or transient medical condition during the study may return upon reversal, improvement or stabilization of their clinical status.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
NIEHS Clinical Research Unit (CRU)
Research Triangle Park, North Carolina, 27709, United States
Related Publications (5)
Moran LJ, Hutchison SK, Norman RJ, Teede HJ. Lifestyle changes in women with polycystic ovary syndrome. Cochrane Database Syst Rev. 2011 Jul 6;(7):CD007506. doi: 10.1002/14651858.CD007506.pub3.
PMID: 21735412BACKGROUNDSharma R, Biedenharn KR, Fedor JM, Agarwal A. Lifestyle factors and reproductive health: taking control of your fertility. Reprod Biol Endocrinol. 2013 Jul 16;11:66. doi: 10.1186/1477-7827-11-66.
PMID: 23870423BACKGROUNDRoychoudhury S, Chakraborty S, Choudhury AP, Das A, Jha NK, Slama P, Nath M, Massanyi P, Ruokolainen J, Kesari KK. Environmental Factors-Induced Oxidative Stress: Hormonal and Molecular Pathway Disruptions in Hypogonadism and Erectile Dysfunction. Antioxidants (Basel). 2021 May 24;10(6):837. doi: 10.3390/antiox10060837.
PMID: 34073826BACKGROUNDCorona G, Rastrelli G, Morelli A, Sarchielli E, Cipriani S, Vignozzi L, Maggi M. Treatment of Functional Hypogonadism Besides Pharmacological Substitution. World J Mens Health. 2020 Jul;38(3):256-270. doi: 10.5534/wjmh.190061. Epub 2019 Aug 29.
PMID: 31496147BACKGROUNDGravholt CH, Chang S, Wallentin M, Fedder J, Moore P, Skakkebaek A. Klinefelter Syndrome: Integrating Genetics, Neuropsychology, and Endocrinology. Endocr Rev. 2018 Aug 1;39(4):389-423. doi: 10.1210/er.2017-00212.
PMID: 29438472BACKGROUND
Related Links
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Natalie D Shaw, M.D.
National Institute of Environmental Health Sciences (NIEHS)
Central Study Contacts
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- NIH
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
February 24, 2024
First Posted
February 28, 2024
Study Start
July 1, 2024
Primary Completion (Estimated)
March 28, 2039
Study Completion (Estimated)
March 31, 2039
Last Updated
December 23, 2025
Record last verified: 2025-12-19
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, ICF
- Time Frame
- Data will be made available with the scientific publication upon reasonable request. In some cases, especially per journal policy and as appropriate, we will deposit deidentified data.
- Access Criteria
- Aggregated summary and statistical analysis will be publicly available. All the patient-level data will require controlled access.
Aggregated and summarized data will be made available as part of associated publication, using NIH-Supported Data Sharing Resources (nlm.nih.gov/NIHbmic/generalist\_repositories.html )@@@Aggregated summary and statistical analysis will be publicly available. All the patient-level data will require controlled access.@@@Outside investigators may apply for research collaborations related to the original research questions, that will be IRB approved for use and a data transfer agreement will be signed, and coded, deidentified data will be provided with a data dictionary. For studies unrelated to the original research, only deidentified data can be provided and only when subjects consented to future research.@@@Summary clinical response and adverse event data will be placed in clinicaltrials.gov one year after the final subject has completed the primary endpoint. @@@