Fabvue Sign Up

Natural birth control meets wearable tech.

Join the FabVue clinical trial using just your phone and a ring.

You could receive an Oura Ring at no cost and up to $405 in compensation

100% virtual — no clinic visits required

Help advance hormone-free options for reproductive health
BACKGROUND

Join a clinical research study that evaluates a new natural birth control method using a mobile app that calculates your daily pregnancy risk by measuring your biometrics (i.e., temperature) with a wearable device (Oura Ring). This birth control method is called fertility awareness based contraception and is completely hormone free!

This research will follow participants over a 12-month period. Women will be guided to use the wearable ring and an app that tracks temperature, sleep, and other biometrics to understand their cycle. Women will be asked to check the study app each morning to receive their individualized daily contraceptive guidance, and will log information about their menstrual cycle and sexual activity.

The primary goal of this research is to understand how wearable fertility awareness based technology may support natural contraceptive choices. All study activities are conducted remotely, and the study is being conducted under IRB oversight.
Are you willing to use the Oura ring and the investigational FabVue App as your primary form of contraception for the entire study duration (12 months)?*

YesNoUnsure, but interested in learning more about the study
Below is more information regarding this clinical trial. If you decide you are interested or still want to learn more, fill out the screening questions below and you will be sent a copy of the study Informed Consent Form.

This clinical research study is evaluating a mobile application, called FabVue, which uses a fertility awareness based algorithm to help women understand their daily risk of pregnancy. The study will assess how effective the app is at helping users avoid pregnancy when used as directed over the course of one year.

WHY PARTICIPATE
- You could receive an Oura Ring at no cost and up to $XX in compensation
- 100% virtual – no clinic visits required
- Help advance hormone-free options for reproductive health
WHAT’S INVOLVED

If eligible and enrolled, you will be asked to:
- Wear a ring device (provided by the study)
- Use the FabVue mobile app daily to view your individual pregnancy risk (“low” or “high”)
- Log your menstrual cycle and sexual activity in the app
- Complete periodic surveys over 12 months
- Use the guidance in the app as your primary birth control method
Take 3 minutes to see if you qualify!
First Name*
Last Name*
Best mobile phone number for study contact*
Please enter a valid phone number.
Best email for study contact*
What is your sex assigned at birth?*

MaleFemaleOther
Please enter your date of birth*

MonthDayYear
Do you currently reside in the United States of America?*

YesNo
Select your current state of residence:*
What type of mobile phone do you use?*

iPhoneAndroidOther
Do you wish to prevent pregnancy for at least the next 12 months?*

YesNo
How would you describe your menstrual cycle in the last 12 months?*

Mostly regular: my cycle length is typically between 21-35 daysMostly irregular: my cycle length is typically either less than 21 days or greater than 35 daysI don’t have menstrual cyclesI don’t know
Do you engage in vaginal intercourse at least once per month with male partner(s) (male assigned at birth)?*

YesNo
To the best of your knowledge, are you currently able to become pregnant?*

YesNo
Have you been diagnosed with any medical conditions that affect ovulation or do you have infrequent ovulation?*

YesNo
Which option describes your past or current use of hormonal birth control, such as an intra-uterine device (IUD), the pill, the patch, the vaginal ring, the shot, and/or a contraceptive implant (commonly known as Nexplanon)?*

Yes, currently using a form of hormonal birth controlNo, have not used within the past 1 monthNo, have not used within the past 2 monthsNo, have not used within the past 3 months or longer
Do you currently have a copper IUD?*

YesNo
Are you currently pregnant or breastfeeding/pumping or have you experienced a pregnancy in the last three months?*

Never pregnantNo, not within the last 3 months or longerNo, not within the last 2 monthsNo, not within the last 1 monthYes, currently pregnant or breastfeeding/pumping
Do you currently have an active Oura membership?

YesNo
For the duration of this study (1 year) are you willing to stop using your personal Oura account and ring and instead ONLY use the study specific Oura account, ring, and App we provide you?

Note: Data from your personal account will not carry over to your study account. At the end of the study, your study account will be retired. There is no guarantee that data from your study account can be merged with your personal account.
YesNo
UTM Code
UTM Source
UTM Campaign
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Frequently Asked Questions
1. What is this study about?

This clinical research study is evaluating a mobile application, called FabVue, which uses a fertility awareness based algorithm to help women understand their daily risk of pregnancy. The study will assess how effective the app is at helping users avoid pregnancy when used as directed over the course of one year.

2. Is this a birth control product that is already approved?

No. FabVue is an investigational digital health tool. It is being tested in this study and is not yet approved for use as a contraceptive product. This clinical trial is designed to collect safety and effectiveness data.

3. What is involved if I participate in the study?

If eligible and enrolled, you will be asked to:
- Wear a ring device (provided by the study)
- Use the FabVue mobile app daily to view your individual pregnancy risk (“low” or “high”)
- Log your menstrual cycle and sexual activity in the app
- Complete periodic surveys over 12 months
- Use the guidance in the app as your primary birth control method
4. What kind of birth control is this?

The FabVue app uses fertility awareness which means it helps you understand when you're more or less likely to get pregnant, based on your personal cycle and data from the smart ring. On “high risk” days, backup contraception will be recommended.

5. Is the ring a form of birth control?

No, the ring (a wearable device) is used to collect biometric data, which helps inform the app’s algorithm. It is not a contraceptive device on its own.

6. What happens if I become pregnant during the study?

If you become pregnant during the study, you will no longer participate in study activities but may be asked to complete an exit survey. Your safety and well-being remain our top priority.

7. Will I be compensated?

Yes. Participants who complete study requirements may receive compensation of up to $405 over the course of the study.

8. Can I still participate if I’ve used hormonal birth control in the past?

You may participate as long as you are not currently using or have not used any hormonal contraception (including pills, implants, patches, IUDs, etc.) within the past 3 months.

9. Is the study entirely virtual?

Yes. This is a decentralized clinical trial, meaning all activities can be completed from home using your smartphone and the study app.

10. Who is eligible to participate?

You may be eligible if you:
- Are assigned female at birth
- Are 18–45 years old
- Are currently sexually active with a male partner
- Have regular menstrual cycles (21–35 days)
- Want to avoid pregnancy for at least one year
- Have not been diagnosed with infertility
- Are not currently pregnant, breastfeeding, or using hormonal contraception or non-hormonal copper IUD.
11. Will my data be kept confidential?

Yes. All personal and health information collected during the study will be stored securely and only used for study purposes. It will not be shared or sold to third parties.

12. How do I get started?

You can begin by completing the online pre-screener to see if you qualify.

Please note: Curavit and Femvera Health may store your data in a confidential and secure database. That personal information will never be shared or sold with any other persons or organizations not associated with Curavit and Femvera Health. Curavit may use personal information to contact you directly by phone and/or email for matters related to this clinical trial. If you do not qualify, you will not be contacted. See our Privacy Policy for more details. Legal Notice & Terms of Service.
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Natural birth control meets wearable tech.

Join the FabVue clinical trial using just your phone and a ring.

Take 3 minutes to see if you qualify!