FDA De Novo · Natural Cycles

DEN170052: Natural Cycles (Natural Cycles Nordic AB)

Natural Cycles Nordic AB received FDA De Novo DEN170052 for Natural Cycles, with a decision date of Aug 10, 2018.

Prescription or OTC: OTC parsed from FDA documents (derived: De Novo review text mentions OTC only)

FDA record for DEN170052FDA decision summary (PDF)

FDA facts

Official fields for DEN170052
FDA numberDEN170052
PathwayDe Novo
ApplicantNatural Cycles Nordic AB
Device nameNatural Cycles
Product codePYT: Device, Fertility Diagnostic, Contraceptive, Software Application
Regulation (21 CFR)884.5370
Device classClass 2
Date receivedSep 20, 2017
Decision dateAug 10, 2018
DecisionUnknown (DENG)

Source: openFDA device 510(k) data, data through Oct 26, 2026.

Indications for use parsed from FDA documents

Natural Cycles is a stand-alone software application, intended for women 18 years and older, to monitor their fertility. Natural Cycles can be used for preventing a pregnancy (contraception) or planning a pregnancy (conception).

Extracted automatically from FDA's decision summary. It can contain extraction errors and is not a verified quote. Read the wording in the FDA PDF before relying on it.

Predicates parsed from FDA documents

A De Novo request is for a new type of device with no legally marketed predicate. When FDA grants it, the device can serve as a predicate for later 510(k) submissions. 2 records in this database cite DEN170052 as a predicate (listed below).

Later records that cite DEN170052

  • K202897 Natural Cycles (Natural Cycles, Jun 24, 2021, PYT)
  • K193330 Clue Birth Control (Biowink, Feb 18, 2021, PYT)

ChatPPG interpretation

A granted De Novo request authorizes a new type of low- to moderate-risk device and creates a classification regulation for it (here 21 CFR 884.5370). The usual wording is "granted" or "authorized", not "approved". See FDA cleared vs approved.

Product code PYT is "Device, Fertility Diagnostic, Contraceptive, Software Application", class 2, 21 CFR 884.5370. FDA's definition: "Designed to monitor and provide fertility information to prevent pregnancy (contraception)."

Our labels for filtering: claim Fertility / cycle, sensor Other. These are heuristics, not FDA fields.