aid: rejoni
name: Rejoni
image: https://cdn.prod.website-files.com/68a338214a8d0f9a68a471b5/68a360063a1179d6ecb188ec_Rejoni_tag_logo_White.svg
description: >-
  Rejoni, Inc. is a privately held, clinical-stage women's health medical device company founded in
  June 2020 by serial entrepreneur Amar Sawhney, PhD and Pramand LLC, and headquartered at 201
  Burlington Road in Bedford, Massachusetts. It develops proprietary hydrogel-based biomaterial
  therapies for gynecological surgery, with a stated mission of protecting, preserving and healing
  the uterus. Its lead product, the Juveena Hydrogel System, is designed to prevent the formation
  and reformation of intrauterine adhesions (IUAs) — the scar tissue that forms after transcervical
  procedures such as dilation and curettage, myomectomy or treatment of heavy bleeding, and a
  leading cause of infertility and abnormal uterine bleeding. The system pairs a low-profile
  proprietary transcervical catheter with two liquid precursors that cross-link on delivery into a
  soft, temporary hydrogel implant that mechanically separates the uterine walls during healing and
  then resorbs on its own in roughly two to three weeks, about one menstrual cycle, so no removal
  procedure is required. Juveena is investigational only and pending FDA approval; the FDA filed
  Rejoni's premarket approval (PMA) application in January 2026, and the company completed patient
  enrollment in its US IDE pivotal study. Rejoni closed a $25 million financing in June 2026 with
  ClavystBio, Amed Ventures, Ascension Ventures, Catalyst Health Ventures, Delos Capital, FemHealth
  Ventures, Iyengar Capital and Sparta Group, and appointed women's health MedTech leader John
  Nealon as chief executive officer in May 2026. Rejoni runs no developer program and publishes no
  public API: its entire web presence is a small Webflow marketing site, and probes for OpenAPI,
  Swagger, GraphQL, MCP, llms.txt and every /.well-known/ discovery path returned HTTP 404 against a
  verified real-404 origin, while api./developer./docs./app./portal.rejoni.com resolve only to a
  wildcard A record with no listener answering on either port 80 or 443.
url: https://raw.githubusercontent.com/api-evangelist/rejoni/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-tier: stub
x-tier-reason: harvest
specificationVersion: '0.23'
created: '2026-08-05'
modified: '2026-08-05'
tags:
- Company
- Medical Devices
- Women's Health
- Healthcare
- Biomaterials
- Life Sciences
- Surgery
- Clinical Trials
- MedTech
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://rejoni.com/
- type: About
  url: https://rejoni.com/about
- type: Team
  url: https://rejoni.com/team
- type: Technology
  url: https://rejoni.com/technology
- type: News
  url: https://rejoni.com/news
- type: Contact
  url: https://rejoni.com/contact
- type: PrivacyPolicy
  url: https://rejoni.com/privacy
- type: LinkedIn
  url: https://www.linkedin.com/company/rejoni
- type: SecondaryMarket
  url: https://forgeglobal.com/rejoni_stock/
- type: DomainSecurity
  url: security/rejoni-domain-security.yml
- type: LLMsTxt
  url: llms/rejoni-llms.txt
x-coverage:
  state: none
  reason: not-a-software-company
  detail: >-
    Rejoni's product is a resorbable hydrogel implant and a transcervical delivery catheter pending
    FDA premarket approval, not software; its whole web presence is a seven-page Webflow marketing
    site with an empty robots.txt, where /openapi.json, /graphql, /mcp, /llms.txt and every
    /.well-known/ path 404 against a verified real-404 control, and api./developer./docs.rejoni.com
    resolve only to a wildcard A record that never answers a TCP connect.
  evidence:
  - url: https://rejoni.com/openapi.json
    status: 404
  - url: https://rejoni.com/llms.txt
    status: 404
  - url: https://rejoni.com/.well-known/agent-card.json
    status: 404
  - url: https://rejoni.com/graphql
    status: 404
  - url: https://rejoni.com/zzz-control-path-check
    status: 404
  - url: https://api.rejoni.com/
    status: 0
  checked: '2026-08-05'
x-enrichment:
  date: '2026-08-05'
  status: minimal
  artifacts_added: 3
  pass: local-v1